./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.7.3/linux-3.10-rc1-43_1a-bitvector-drivers--atm--he.ko-ldv_main0.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 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-3.7.3/linux-3.10-rc1-43_1a-bitvector-drivers--atm--he.ko-ldv_main0.cil.out.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 9f4e8d7632085ae4998f8f04f0272dba6593137ea460111f26ea8fa69071af83 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-16 03:41:16,233 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-16 03:41:16,236 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-16 03:41:16,287 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-16 03:41:16,288 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-16 03:41:16,290 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-16 03:41:16,292 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-16 03:41:16,294 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-16 03:41:16,296 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-16 03:41:16,300 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-16 03:41:16,301 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-16 03:41:16,302 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-16 03:41:16,303 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-16 03:41:16,305 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-16 03:41:16,306 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-16 03:41:16,310 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-16 03:41:16,311 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-16 03:41:16,311 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-16 03:41:16,314 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-16 03:41:16,319 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-16 03:41:16,320 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-16 03:41:16,321 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-16 03:41:16,323 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-16 03:41:16,324 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-16 03:41:16,329 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-16 03:41:16,330 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-16 03:41:16,330 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-16 03:41:16,332 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-16 03:41:16,332 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-16 03:41:16,333 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-16 03:41:16,333 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-16 03:41:16,334 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-16 03:41:16,336 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-16 03:41:16,337 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-16 03:41:16,338 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-16 03:41:16,338 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-16 03:41:16,338 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-16 03:41:16,339 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-16 03:41:16,340 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-16 03:41:16,340 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-16 03:41:16,341 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-16 03:41:16,342 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-16 03:41:16,374 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-16 03:41:16,374 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-16 03:41:16,375 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-16 03:41:16,375 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-16 03:41:16,376 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-16 03:41:16,376 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-16 03:41:16,377 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-16 03:41:16,377 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-16 03:41:16,377 INFO L138 SettingsManager]: * Use SBE=true [2021-12-16 03:41:16,377 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-16 03:41:16,378 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-16 03:41:16,378 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-16 03:41:16,378 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-16 03:41:16,379 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-16 03:41:16,379 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-16 03:41:16,379 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-16 03:41:16,379 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-16 03:41:16,379 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-16 03:41:16,379 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-16 03:41:16,380 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-16 03:41:16,380 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-16 03:41:16,380 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 03:41:16,380 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-16 03:41:16,380 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-16 03:41:16,381 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-16 03:41:16,381 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-16 03:41:16,381 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-16 03:41:16,381 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-16 03:41:16,381 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-16 03:41:16,381 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-16 03:41:16,382 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-16 03:41:16,382 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9f4e8d7632085ae4998f8f04f0272dba6593137ea460111f26ea8fa69071af83 [2021-12-16 03:41:16,611 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-16 03:41:16,633 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-16 03:41:16,636 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-16 03:41:16,637 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-16 03:41:16,638 INFO L275 PluginConnector]: CDTParser initialized [2021-12-16 03:41:16,639 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.7.3/linux-3.10-rc1-43_1a-bitvector-drivers--atm--he.ko-ldv_main0.cil.out.i [2021-12-16 03:41:16,715 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a6e47b499/a37d65f7b7e2437b83a2f1155a6eab4d/FLAG8f3ab6382 [2021-12-16 03:41:17,462 INFO L306 CDTParser]: Found 1 translation units. [2021-12-16 03:41:17,463 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.7.3/linux-3.10-rc1-43_1a-bitvector-drivers--atm--he.ko-ldv_main0.cil.out.i [2021-12-16 03:41:17,503 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a6e47b499/a37d65f7b7e2437b83a2f1155a6eab4d/FLAG8f3ab6382 [2021-12-16 03:41:18,012 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a6e47b499/a37d65f7b7e2437b83a2f1155a6eab4d [2021-12-16 03:41:18,014 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-16 03:41:18,016 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-16 03:41:18,016 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-16 03:41:18,017 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-16 03:41:18,019 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-16 03:41:18,020 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 03:41:18" (1/1) ... [2021-12-16 03:41:18,021 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@253af742 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:41:18, skipping insertion in model container [2021-12-16 03:41:18,021 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 03:41:18" (1/1) ... [2021-12-16 03:41:18,026 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-16 03:41:18,150 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-16 03:41:19,853 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-3.7.3/linux-3.10-rc1-43_1a-bitvector-drivers--atm--he.ko-ldv_main0.cil.out.i[290796,290809] [2021-12-16 03:41:19,915 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 03:41:19,938 INFO L203 MainTranslator]: Completed pre-run [2021-12-16 03:41:20,343 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-3.7.3/linux-3.10-rc1-43_1a-bitvector-drivers--atm--he.ko-ldv_main0.cil.out.i[290796,290809] [2021-12-16 03:41:20,357 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 03:41:20,417 INFO L208 MainTranslator]: Completed translation [2021-12-16 03:41:20,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:41:20 WrapperNode [2021-12-16 03:41:20,419 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-16 03:41:20,420 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-16 03:41:20,420 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-16 03:41:20,420 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-16 03:41:20,426 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:41:20" (1/1) ... [2021-12-16 03:41:20,499 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:41:20" (1/1) ... [2021-12-16 03:41:20,683 INFO L137 Inliner]: procedures = 244, calls = 2005, calls flagged for inlining = 120, calls inlined = 91, statements flattened = 4546 [2021-12-16 03:41:20,684 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-16 03:41:20,685 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-16 03:41:20,685 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-16 03:41:20,685 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-16 03:41:20,693 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:41:20" (1/1) ... [2021-12-16 03:41:20,693 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:41:20" (1/1) ... [2021-12-16 03:41:20,719 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:41:20" (1/1) ... [2021-12-16 03:41:20,720 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:41:20" (1/1) ... [2021-12-16 03:41:20,827 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:41:20" (1/1) ... [2021-12-16 03:41:20,850 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:41:20" (1/1) ... [2021-12-16 03:41:20,873 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:41:20" (1/1) ... [2021-12-16 03:41:20,899 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-16 03:41:20,900 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-16 03:41:20,900 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-16 03:41:20,901 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-16 03:41:20,902 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:41:20" (1/1) ... [2021-12-16 03:41:20,908 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 03:41:20,916 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 03:41:20,932 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-16 03:41:20,939 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-16 03:41:20,967 INFO L130 BoogieDeclarations]: Found specification of procedure he_remove_one [2021-12-16 03:41:20,968 INFO L138 BoogieDeclarations]: Found implementation of procedure he_remove_one [2021-12-16 03:41:20,968 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-12-16 03:41:20,968 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-12-16 03:41:20,968 INFO L130 BoogieDeclarations]: Found specification of procedure remove_wait_queue [2021-12-16 03:41:20,968 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_wait_queue [2021-12-16 03:41:20,968 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-12-16 03:41:20,968 INFO L130 BoogieDeclarations]: Found specification of procedure he_close [2021-12-16 03:41:20,969 INFO L138 BoogieDeclarations]: Found implementation of procedure he_close [2021-12-16 03:41:20,969 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_alloc [2021-12-16 03:41:20,969 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_alloc [2021-12-16 03:41:20,969 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-12-16 03:41:20,969 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-12-16 03:41:20,969 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-12-16 03:41:20,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-12-16 03:41:20,970 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-16 03:41:20,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-16 03:41:20,970 INFO L130 BoogieDeclarations]: Found specification of procedure he_phy_get [2021-12-16 03:41:20,970 INFO L138 BoogieDeclarations]: Found implementation of procedure he_phy_get [2021-12-16 03:41:20,970 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_byte [2021-12-16 03:41:20,970 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_byte [2021-12-16 03:41:20,971 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2021-12-16 03:41:20,971 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2021-12-16 03:41:20,971 INFO L130 BoogieDeclarations]: Found specification of procedure __alloc_tpd [2021-12-16 03:41:20,971 INFO L138 BoogieDeclarations]: Found implementation of procedure __alloc_tpd [2021-12-16 03:41:20,971 INFO L130 BoogieDeclarations]: Found specification of procedure rate_to_atmf [2021-12-16 03:41:20,971 INFO L138 BoogieDeclarations]: Found implementation of procedure rate_to_atmf [2021-12-16 03:41:20,972 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-16 03:41:20,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-16 03:41:20,972 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2021-12-16 03:41:20,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2021-12-16 03:41:20,972 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-16 03:41:20,972 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-16 03:41:20,972 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-16 03:41:20,973 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-16 03:41:20,973 INFO L130 BoogieDeclarations]: Found specification of procedure he_phy_put [2021-12-16 03:41:20,973 INFO L138 BoogieDeclarations]: Found implementation of procedure he_phy_put [2021-12-16 03:41:20,974 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-16 03:41:20,974 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-16 03:41:20,974 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-16 03:41:20,974 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-16 03:41:20,974 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-12-16 03:41:20,974 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-12-16 03:41:20,974 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-16 03:41:20,975 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-16 03:41:20,975 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-16 03:41:20,975 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-16 03:41:20,975 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_create [2021-12-16 03:41:20,975 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_create [2021-12-16 03:41:20,976 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2021-12-16 03:41:20,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2021-12-16 03:41:20,976 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-16 03:41:20,976 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-16 03:41:20,976 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_destroy [2021-12-16 03:41:20,976 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_destroy [2021-12-16 03:41:20,977 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-12-16 03:41:20,977 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-12-16 03:41:20,978 INFO L130 BoogieDeclarations]: Found specification of procedure he_readl_internal [2021-12-16 03:41:20,978 INFO L138 BoogieDeclarations]: Found implementation of procedure he_readl_internal [2021-12-16 03:41:20,979 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-16 03:41:20,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-16 03:41:20,979 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-12-16 03:41:20,979 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-12-16 03:41:20,979 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_word [2021-12-16 03:41:20,980 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_word [2021-12-16 03:41:20,980 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2021-12-16 03:41:20,980 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2021-12-16 03:41:20,980 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-16 03:41:20,980 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-16 03:41:20,980 INFO L130 BoogieDeclarations]: Found specification of procedure add_wait_queue [2021-12-16 03:41:20,980 INFO L138 BoogieDeclarations]: Found implementation of procedure add_wait_queue [2021-12-16 03:41:20,981 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2021-12-16 03:41:20,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2021-12-16 03:41:20,981 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-12-16 03:41:20,982 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-12-16 03:41:20,982 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2021-12-16 03:41:20,982 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2021-12-16 03:41:20,982 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-16 03:41:20,982 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-16 03:41:20,982 INFO L130 BoogieDeclarations]: Found specification of procedure he_writel_internal [2021-12-16 03:41:20,982 INFO L138 BoogieDeclarations]: Found implementation of procedure he_writel_internal [2021-12-16 03:41:20,983 INFO L130 BoogieDeclarations]: Found specification of procedure he_ioctl [2021-12-16 03:41:20,983 INFO L138 BoogieDeclarations]: Found implementation of procedure he_ioctl [2021-12-16 03:41:20,983 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-16 03:41:20,983 INFO L130 BoogieDeclarations]: Found specification of procedure he_open [2021-12-16 03:41:20,983 INFO L138 BoogieDeclarations]: Found implementation of procedure he_open [2021-12-16 03:41:20,984 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-16 03:41:20,984 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-16 03:41:20,984 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-12-16 03:41:20,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-12-16 03:41:20,984 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-16 03:41:20,985 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-16 03:41:20,985 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-12-16 03:41:20,985 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-12-16 03:41:20,985 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-12-16 03:41:20,985 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-12-16 03:41:20,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-16 03:41:20,986 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-12-16 03:41:20,986 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-12-16 03:41:20,987 INFO L130 BoogieDeclarations]: Found specification of procedure he_stop [2021-12-16 03:41:20,987 INFO L138 BoogieDeclarations]: Found implementation of procedure he_stop [2021-12-16 03:41:20,987 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_drvdata [2021-12-16 03:41:20,987 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_drvdata [2021-12-16 03:41:20,988 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-16 03:41:20,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-16 03:41:20,988 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-16 03:41:20,988 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-12-16 03:41:20,988 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-12-16 03:41:20,988 INFO L130 BoogieDeclarations]: Found specification of procedure __enqueue_tpd [2021-12-16 03:41:20,988 INFO L138 BoogieDeclarations]: Found implementation of procedure __enqueue_tpd [2021-12-16 03:41:20,989 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2021-12-16 03:41:20,989 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2021-12-16 03:41:20,989 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-16 03:41:20,989 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~int [2021-12-16 03:41:20,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~int [2021-12-16 03:41:20,990 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-12-16 03:41:20,990 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-12-16 03:41:20,990 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-16 03:41:20,991 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-16 03:41:20,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-16 03:41:20,993 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2021-12-16 03:41:20,993 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2021-12-16 03:41:20,993 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-16 03:41:20,994 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-16 03:41:20,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-16 03:41:20,996 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-12-16 03:41:20,996 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-12-16 03:41:20,996 INFO L130 BoogieDeclarations]: Found specification of procedure atm_dev_deregister [2021-12-16 03:41:21,000 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_dev_deregister [2021-12-16 03:41:21,000 INFO L130 BoogieDeclarations]: Found specification of procedure read_prom_byte [2021-12-16 03:41:21,000 INFO L138 BoogieDeclarations]: Found implementation of procedure read_prom_byte [2021-12-16 03:41:21,000 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-12-16 03:41:21,001 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-12-16 03:41:21,001 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2021-12-16 03:41:21,001 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2021-12-16 03:41:21,001 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-12-16 03:41:21,001 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-12-16 03:41:21,001 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-16 03:41:21,001 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-16 03:41:21,002 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2021-12-16 03:41:21,002 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2021-12-16 03:41:21,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-16 03:41:21,002 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-12-16 03:41:21,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-12-16 03:41:21,002 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-16 03:41:21,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-16 03:41:21,003 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_free [2021-12-16 03:41:21,003 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_free [2021-12-16 03:41:21,636 INFO L236 CfgBuilder]: Building ICFG [2021-12-16 03:41:21,638 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-16 03:41:24,140 INFO L277 CfgBuilder]: Performing block encoding [2021-12-16 03:41:24,157 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-16 03:41:24,157 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-16 03:41:24,160 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 03:41:24 BoogieIcfgContainer [2021-12-16 03:41:24,160 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-16 03:41:24,162 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-16 03:41:24,162 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-16 03:41:24,166 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-16 03:41:24,166 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 03:41:18" (1/3) ... [2021-12-16 03:41:24,167 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43171d27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 03:41:24, skipping insertion in model container [2021-12-16 03:41:24,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:41:20" (2/3) ... [2021-12-16 03:41:24,167 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43171d27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 03:41:24, skipping insertion in model container [2021-12-16 03:41:24,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 03:41:24" (3/3) ... [2021-12-16 03:41:24,168 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.10-rc1-43_1a-bitvector-drivers--atm--he.ko-ldv_main0.cil.out.i [2021-12-16 03:41:24,173 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-16 03:41:24,173 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-16 03:41:24,236 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-16 03:41:24,241 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-16 03:41:24,242 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-16 03:41:24,290 INFO L276 IsEmpty]: Start isEmpty. Operand has 1592 states, 1023 states have (on average 1.278592375366569) internal successors, (1308), 1042 states have internal predecessors, (1308), 500 states have call successors, (500), 67 states have call predecessors, (500), 67 states have return successors, (500), 495 states have call predecessors, (500), 500 states have call successors, (500) [2021-12-16 03:41:24,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-12-16 03:41:24,297 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:41:24,297 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-12-16 03:41:24,298 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:41:24,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:41:24,303 INFO L85 PathProgramCache]: Analyzing trace with hash -1781670609, now seen corresponding path program 1 times [2021-12-16 03:41:24,311 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:41:24,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103843427] [2021-12-16 03:41:24,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:41:24,313 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:41:24,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:41:24,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-16 03:41:24,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:41:24,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-16 03:41:24,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:41:24,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-16 03:41:24,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:41:24,801 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-16 03:41:24,801 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:41:24,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103843427] [2021-12-16 03:41:24,802 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103843427] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:41:24,802 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:41:24,802 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-16 03:41:24,804 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791616408] [2021-12-16 03:41:24,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:41:24,808 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-16 03:41:24,808 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:41:24,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 03:41:24,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 03:41:24,834 INFO L87 Difference]: Start difference. First operand has 1592 states, 1023 states have (on average 1.278592375366569) internal successors, (1308), 1042 states have internal predecessors, (1308), 500 states have call successors, (500), 67 states have call predecessors, (500), 67 states have return successors, (500), 495 states have call predecessors, (500), 500 states have call successors, (500) Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-16 03:41:25,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 03:41:25,109 INFO L93 Difference]: Finished difference Result 3263 states and 4731 transitions. [2021-12-16 03:41:25,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 03:41:25,117 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 33 [2021-12-16 03:41:25,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 03:41:25,143 INFO L225 Difference]: With dead ends: 3263 [2021-12-16 03:41:25,144 INFO L226 Difference]: Without dead ends: 1667 [2021-12-16 03:41:25,160 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 03:41:25,165 INFO L933 BasicCegarLoop]: 2349 mSDtfsCounter, 1829 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1829 SdHoareTripleChecker+Valid, 2889 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 03:41:25,166 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1829 Valid, 2889 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 03:41:25,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1667 states. [2021-12-16 03:41:25,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1667 to 1667. [2021-12-16 03:41:25,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1667 states, 1074 states have (on average 1.266294227188082) internal successors, (1360), 1091 states have internal predecessors, (1360), 509 states have call successors, (509), 84 states have call predecessors, (509), 83 states have return successors, (508), 503 states have call predecessors, (508), 508 states have call successors, (508) [2021-12-16 03:41:25,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1667 states to 1667 states and 2377 transitions. [2021-12-16 03:41:25,418 INFO L78 Accepts]: Start accepts. Automaton has 1667 states and 2377 transitions. Word has length 33 [2021-12-16 03:41:25,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 03:41:25,419 INFO L470 AbstractCegarLoop]: Abstraction has 1667 states and 2377 transitions. [2021-12-16 03:41:25,419 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-16 03:41:25,420 INFO L276 IsEmpty]: Start isEmpty. Operand 1667 states and 2377 transitions. [2021-12-16 03:41:25,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-12-16 03:41:25,428 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:41:25,428 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-12-16 03:41:25,428 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-16 03:41:25,429 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:41:25,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:41:25,430 INFO L85 PathProgramCache]: Analyzing trace with hash 698168758, now seen corresponding path program 1 times [2021-12-16 03:41:25,430 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:41:25,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251220184] [2021-12-16 03:41:25,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:41:25,431 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:41:25,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:41:25,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-16 03:41:25,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:41:25,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-16 03:41:25,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:41:25,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-16 03:41:25,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:41:25,590 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-16 03:41:25,590 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 03:41:25,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251220184] [2021-12-16 03:41:25,591 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251220184] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:41:25,591 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:41:25,591 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 03:41:25,591 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584155507] [2021-12-16 03:41:25,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:41:25,592 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-16 03:41:25,593 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 03:41:25,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-16 03:41:25,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-16 03:41:25,604 INFO L87 Difference]: Start difference. First operand 1667 states and 2377 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-16 03:41:27,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 03:41:27,473 INFO L93 Difference]: Finished difference Result 3429 states and 4899 transitions. [2021-12-16 03:41:27,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-16 03:41:27,474 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 36 [2021-12-16 03:41:27,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 03:41:27,487 INFO L225 Difference]: With dead ends: 3429 [2021-12-16 03:41:27,487 INFO L226 Difference]: Without dead ends: 1770 [2021-12-16 03:41:27,497 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-16 03:41:27,499 INFO L933 BasicCegarLoop]: 2207 mSDtfsCounter, 464 mSDsluCounter, 2861 mSDsCounter, 0 mSdLazyCounter, 894 mSolverCounterSat, 529 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 559 SdHoareTripleChecker+Valid, 5068 SdHoareTripleChecker+Invalid, 1423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 529 IncrementalHoareTripleChecker+Valid, 894 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-12-16 03:41:27,499 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [559 Valid, 5068 Invalid, 1423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [529 Valid, 894 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-12-16 03:41:27,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1770 states. [2021-12-16 03:41:27,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1770 to 1668. [2021-12-16 03:41:27,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1668 states, 1075 states have (on average 1.266046511627907) internal successors, (1361), 1092 states have internal predecessors, (1361), 509 states have call successors, (509), 84 states have call predecessors, (509), 83 states have return successors, (508), 503 states have call predecessors, (508), 508 states have call successors, (508) [2021-12-16 03:41:27,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1668 states to 1668 states and 2378 transitions. [2021-12-16 03:41:27,591 INFO L78 Accepts]: Start accepts. Automaton has 1668 states and 2378 transitions. Word has length 36 [2021-12-16 03:41:27,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 03:41:27,592 INFO L470 AbstractCegarLoop]: Abstraction has 1668 states and 2378 transitions. [2021-12-16 03:41:27,592 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-16 03:41:27,592 INFO L276 IsEmpty]: Start isEmpty. Operand 1668 states and 2378 transitions. [2021-12-16 03:41:27,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-12-16 03:41:27,594 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:41:27,594 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-12-16 03:41:27,594 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-16 03:41:27,594 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:41:27,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:41:27,597 INFO L85 PathProgramCache]: Analyzing trace with hash 1208671996, now seen corresponding path program 1 times [2021-12-16 03:41:27,597 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 03:41:27,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229209361] [2021-12-16 03:41:27,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:41:27,597 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 03:41:27,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 03:41:27,724 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-16 03:41:27,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-16 03:41:27,849 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-16 03:41:27,849 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-16 03:41:27,851 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-16 03:41:27,852 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-16 03:41:27,855 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-12-16 03:41:27,857 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-16 03:41:27,958 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 03:41:27 BoogieIcfgContainer [2021-12-16 03:41:27,958 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-16 03:41:27,959 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-16 03:41:27,959 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-16 03:41:27,959 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-16 03:41:27,960 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 03:41:24" (3/4) ... [2021-12-16 03:41:27,962 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-16 03:41:27,962 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-16 03:41:27,963 INFO L158 Benchmark]: Toolchain (without parser) took 9947.33ms. Allocated memory was 104.9MB in the beginning and 390.1MB in the end (delta: 285.2MB). Free memory was 75.1MB in the beginning and 140.0MB in the end (delta: -65.0MB). Peak memory consumption was 218.6MB. Max. memory is 16.1GB. [2021-12-16 03:41:27,963 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 104.9MB. Free memory was 61.7MB in the beginning and 61.6MB in the end (delta: 94.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-16 03:41:27,964 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2402.90ms. Allocated memory was 104.9MB in the beginning and 157.3MB in the end (delta: 52.4MB). Free memory was 74.7MB in the beginning and 71.3MB in the end (delta: 3.4MB). Peak memory consumption was 91.4MB. Max. memory is 16.1GB. [2021-12-16 03:41:27,973 INFO L158 Benchmark]: Boogie Procedure Inliner took 264.17ms. Allocated memory was 157.3MB in the beginning and 224.4MB in the end (delta: 67.1MB). Free memory was 71.3MB in the beginning and 145.3MB in the end (delta: -74.0MB). Peak memory consumption was 30.6MB. Max. memory is 16.1GB. [2021-12-16 03:41:27,973 INFO L158 Benchmark]: Boogie Preprocessor took 213.97ms. Allocated memory is still 224.4MB. Free memory was 145.3MB in the beginning and 119.1MB in the end (delta: 26.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2021-12-16 03:41:27,973 INFO L158 Benchmark]: RCFGBuilder took 3260.29ms. Allocated memory was 224.4MB in the beginning and 390.1MB in the end (delta: 165.7MB). Free memory was 119.1MB in the beginning and 256.0MB in the end (delta: -136.9MB). Peak memory consumption was 60.2MB. Max. memory is 16.1GB. [2021-12-16 03:41:27,974 INFO L158 Benchmark]: TraceAbstraction took 3796.15ms. Allocated memory is still 390.1MB. Free memory was 256.0MB in the beginning and 141.1MB in the end (delta: 114.9MB). Peak memory consumption was 116.0MB. Max. memory is 16.1GB. [2021-12-16 03:41:27,974 INFO L158 Benchmark]: Witness Printer took 3.77ms. Allocated memory is still 390.1MB. Free memory was 141.1MB in the beginning and 140.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-16 03:41:27,977 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 104.9MB. Free memory was 61.7MB in the beginning and 61.6MB in the end (delta: 94.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2402.90ms. Allocated memory was 104.9MB in the beginning and 157.3MB in the end (delta: 52.4MB). Free memory was 74.7MB in the beginning and 71.3MB in the end (delta: 3.4MB). Peak memory consumption was 91.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 264.17ms. Allocated memory was 157.3MB in the beginning and 224.4MB in the end (delta: 67.1MB). Free memory was 71.3MB in the beginning and 145.3MB in the end (delta: -74.0MB). Peak memory consumption was 30.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 213.97ms. Allocated memory is still 224.4MB. Free memory was 145.3MB in the beginning and 119.1MB in the end (delta: 26.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * RCFGBuilder took 3260.29ms. Allocated memory was 224.4MB in the beginning and 390.1MB in the end (delta: 165.7MB). Free memory was 119.1MB in the beginning and 256.0MB in the end (delta: -136.9MB). Peak memory consumption was 60.2MB. Max. memory is 16.1GB. * TraceAbstraction took 3796.15ms. Allocated memory is still 390.1MB. Free memory was 256.0MB in the beginning and 141.1MB in the end (delta: 114.9MB). Peak memory consumption was 116.0MB. Max. memory is 16.1GB. * Witness Printer took 3.77ms. Allocated memory is still 390.1MB. Free memory was 141.1MB in the beginning and 140.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 9511]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseAnd at line 9525. Possible FailurePath: [L6352] static struct he_dev *he_devs ; [L6353] static bool disable64 ; [L6354] static short nvpibits = -1; [L6355] static short nvcibits = -1; [L6356] static short rx_skb_reserve = 16; [L6357] static bool irq_coalesce = 1; [L6358] static bool sdh = 0; [L6359-L6364] static unsigned int readtab[17U] = { 4352U, 0U, 256U, 0U, 256U, 0U, 256U, 0U, 256U, 0U, 256U, 0U, 256U, 512U, 768U, 512U, 768U}; [L6365-L6370] static unsigned int clocktab[17U] = { 0U, 256U, 0U, 256U, 0U, 256U, 0U, 256U, 0U, 256U, 0U, 256U, 0U, 256U, 0U, 256U, 0U}; [L6371-L6373] static struct atmdev_ops he_ops = {0, & he_open, & he_close, & he_ioctl, 0, 0, 0, & he_send, 0, & he_phy_put, & he_phy_get, 0, & he_proc_read, & __this_module}; [L9192-L9193] static struct pci_device_id he_pci_tbl[2U] = { {4391U, 1024U, 4294967295U, 4294967295U, 0U, 0U, 0UL}, {0U, 0U, 0U, 0U, 0U, 0U, 0UL}}; [L9194] struct pci_device_id const __mod_pci_device_table ; [L9195-L9208] static struct pci_driver he_driver = {{0, 0}, "he", (struct pci_device_id const *)(& he_pci_tbl), & he_init_one, & he_remove_one, 0, 0, 0, 0, 0, 0, 0, {0, 0, 0, 0, (_Bool)0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, {{{{{{0U}}, 0U, 0U, 0, {0, {0, 0}, 0, 0, 0UL}}}}, {0, 0}}}; [L9230] int LDV_IN_INTERRUPT ; [L9521] int ldv_spin = 0; VAL [__mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __this_module={4294967301:4294967299}, clocktab={76:0}, disable64=0, he_devs={0:0}, he_driver={79:0}, he_ops={77:0}, he_pci_tbl={78:0}, irq_coalesce=1, LDV_IN_INTERRUPT=0, ldv_spin=0, nvcibits=-1, nvpibits=-1, readtab={75:0}, rx_skb_reserve=16, sdh=0] [L9238] struct atm_vcc *var_group1 ; [L9239] int res_he_open_23 ; [L9240] struct atm_dev *var_group2 ; [L9241] unsigned int var_he_ioctl_26_p1 ; [L9242] void *var_he_ioctl_26_p2 ; [L9243] struct sk_buff *var_group3 ; [L9244] unsigned char var_he_phy_put_27_p1 ; [L9245] unsigned long var_he_phy_put_27_p2 ; [L9246] unsigned long var_he_phy_get_28_p1 ; [L9247] loff_t *var_he_proc_read_29_p1 ; [L9248] char *var_he_proc_read_29_p2 ; [L9249] struct pci_dev *var_group4 ; [L9250] struct pci_device_id const *var_he_init_one_3_p1 ; [L9251] int res_he_init_one_3 ; [L9252] int var_he_irq_handler_21_p0 ; [L9253] void *var_he_irq_handler_21_p1 ; [L9254] int ldv_s_he_ops_atmdev_ops ; [L9255] int ldv_s_he_driver_pci_driver ; [L9256] int tmp ; [L9257] int tmp___0 ; [L9258] int tmp___1 ; [L9259] var_group1 = malloc(sizeof(struct atm_vcc)) [L9260] var_group1->release_cb = &void_one_par_dummy [L9261] var_group1->push = &void_two_par_dummy [L9262] var_group1->pop = &void_two_par_dummy [L9263] var_group1->push_oam = &int_two_par_dummy [L9264] var_group1->send = &int_two_par_dummy [L9266] ldv_s_he_ops_atmdev_ops = 0 [L9267] ldv_s_he_driver_pci_driver = 0 [L9268] LDV_IN_INTERRUPT = 1 [L9269] FCALL ldv_initialize() [L9270] FCALL ldv_handler_precall() VAL [__mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __this_module={4294967301:4294967299}, clocktab={76:0}, disable64=0, he_devs={0:0}, he_driver={79:0}, he_ops={77:0}, he_pci_tbl={78:0}, irq_coalesce=1, LDV_IN_INTERRUPT=1, ldv_s_he_driver_pci_driver=0, ldv_s_he_ops_atmdev_ops=0, ldv_spin=0, nvcibits=-1, nvpibits=-1, readtab={75:0}, rx_skb_reserve=16, sdh=0, var_group1={-2:0}] [L9271] CALL, EXPR he_init() [L9211] int tmp ; [L9213] CALL, EXPR __pci_register_driver(& he_driver, & __this_module, "he") [L9610] return __VERIFIER_nondet_int(); [L9213] RET, EXPR __pci_register_driver(& he_driver, & __this_module, "he") [L9213] tmp = __pci_register_driver(& he_driver, & __this_module, "he") [L9214] return (tmp); VAL [\result=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __this_module={4294967301:4294967299}, clocktab={76:0}, disable64=0, he_devs={0:0}, he_driver={79:0}, he_ops={77:0}, he_pci_tbl={78:0}, irq_coalesce=1, LDV_IN_INTERRUPT=1, ldv_spin=0, nvcibits=-1, nvpibits=-1, readtab={75:0}, rx_skb_reserve=16, sdh=0, tmp=0] [L9271] RET, EXPR he_init() [L9271] tmp = he_init() [L9272] COND FALSE !(tmp != 0) VAL [__mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __this_module={4294967301:4294967299}, clocktab={76:0}, disable64=0, he_devs={0:0}, he_driver={79:0}, he_ops={77:0}, he_pci_tbl={78:0}, irq_coalesce=1, LDV_IN_INTERRUPT=1, ldv_s_he_driver_pci_driver=0, ldv_s_he_ops_atmdev_ops=0, ldv_spin=0, nvcibits=-1, nvpibits=-1, readtab={75:0}, rx_skb_reserve=16, sdh=0, tmp=0, var_group1={-2:0}] [L9353] tmp___1 = __VERIFIER_nondet_int() [L9354] COND TRUE (tmp___1 != 0 || ldv_s_he_ops_atmdev_ops != 0) || ldv_s_he_driver_pci_driver != 0 VAL [__mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __this_module={4294967301:4294967299}, clocktab={76:0}, disable64=0, he_devs={0:0}, he_driver={79:0}, he_ops={77:0}, he_pci_tbl={78:0}, irq_coalesce=1, LDV_IN_INTERRUPT=1, ldv_s_he_driver_pci_driver=0, ldv_s_he_ops_atmdev_ops=0, ldv_spin=0, nvcibits=-1, nvpibits=-1, readtab={75:0}, rx_skb_reserve=16, sdh=0, tmp=0, tmp___1=-3, var_group1={-2:0}] [L9278] tmp___0 = __VERIFIER_nondet_int() [L9280] case 0: [L9293] case 1: [L9301] case 2: [L9305] case 3: VAL [__mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __this_module={4294967301:4294967299}, clocktab={76:0}, disable64=0, he_devs={0:0}, he_driver={79:0}, he_ops={77:0}, he_pci_tbl={78:0}, irq_coalesce=1, LDV_IN_INTERRUPT=1, ldv_s_he_driver_pci_driver=0, ldv_s_he_ops_atmdev_ops=0, ldv_spin=0, nvcibits=-1, nvpibits=-1, readtab={75:0}, rx_skb_reserve=16, sdh=0, tmp=0, tmp___0=3, tmp___1=-3, var_group1={-2:0}] [L9306] FCALL ldv_handler_precall() VAL [__mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __this_module={4294967301:4294967299}, clocktab={76:0}, disable64=0, he_devs={0:0}, he_driver={79:0}, he_ops={77:0}, he_pci_tbl={78:0}, irq_coalesce=1, LDV_IN_INTERRUPT=1, ldv_s_he_driver_pci_driver=0, ldv_s_he_ops_atmdev_ops=0, ldv_spin=0, nvcibits=-1, nvpibits=-1, readtab={75:0}, rx_skb_reserve=16, sdh=0, tmp=0, tmp___0=3, tmp___1=-3, var_group1={-2:0}] [L9307] CALL he_send(var_group1, var_group3) [L8782] unsigned long flags ; [L8783] struct he_dev *he_dev ; [L8784] unsigned int cid ; [L8785] struct he_tpd *tpd ; [L8786] unsigned char *tmp ; [L8787] char *pti_clp ; [L8788] int clp ; [L8789] int pti ; [L8790] dma_addr_t tmp___0 ; [L8792] EXPR vcc->dev [L8792] EXPR (vcc->dev)->dev_data [L8792] he_dev = (struct he_dev *)(vcc->dev)->dev_data [L8793] EXPR vcc->vpi [L8793] EXPR he_dev->vcibits [L8793] EXPR vcc->vci [L8793] cid = (unsigned int )(((int )vcc->vpi << (int )he_dev->vcibits) | vcc->vci) & 8191U [L8794] EXPR skb->len [L8794] skb->len > 65535U || ((unsigned int )vcc->qos.aal == 13U && skb->len != 52U) [L8794] EXPR vcc->qos.aal [L8794] EXPR (unsigned int )vcc->qos.aal == 13U && skb->len != 52U [L8794] EXPR skb->len [L8794] EXPR (unsigned int )vcc->qos.aal == 13U && skb->len != 52U VAL [(unsigned int )vcc->qos.aal == 13U && skb->len != 52U=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __this_module={4294967301:4294967299}, clocktab={76:0}, disable64=0, he_dev={4294967304:-5}, he_devs={0:0}, he_driver={79:0}, he_ops={77:0}, he_pci_tbl={78:0}, irq_coalesce=1, LDV_IN_INTERRUPT=1, ldv_spin=0, nvcibits=-1, nvpibits=-1, readtab={75:0}, rx_skb_reserve=16, sdh=0, skb={4294967302:0}, skb={4294967302:0}, skb->len=-4294967244, skb->len=-4294967244, skb->len > 65535U || ((unsigned int )vcc->qos.aal == 13U && skb->len != 52U)=0, vcc={-2:0}, vcc={-2:0}, vcc->qos.aal=-243] [L8794] skb->len > 65535U || ((unsigned int )vcc->qos.aal == 13U && skb->len != 52U) VAL [(unsigned int )vcc->qos.aal == 13U && skb->len != 52U=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __this_module={4294967301:4294967299}, clocktab={76:0}, disable64=0, he_dev={4294967304:-5}, he_devs={0:0}, he_driver={79:0}, he_ops={77:0}, he_pci_tbl={78:0}, irq_coalesce=1, LDV_IN_INTERRUPT=1, ldv_spin=0, nvcibits=-1, nvpibits=-1, readtab={75:0}, rx_skb_reserve=16, sdh=0, skb={4294967302:0}, skb={4294967302:0}, skb->len=-4294967244, skb->len=-4294967244, skb->len > 65535U || ((unsigned int )vcc->qos.aal == 13U && skb->len != 52U)=0, vcc={-2:0}, vcc={-2:0}, vcc->qos.aal=-243] [L8794] COND FALSE !(skb->len > 65535U || ((unsigned int )vcc->qos.aal == 13U && skb->len != 52U)) [L8806] CALL, EXPR skb_end_pointer((struct sk_buff const *)skb) [L6080] EXPR skb->head [L6080] EXPR skb->end [L6080] return ((unsigned char *)skb->head + (unsigned long )skb->end); [L8806] RET, EXPR skb_end_pointer((struct sk_buff const *)skb) [L8806] tmp = skb_end_pointer((struct sk_buff const *)skb) [L8807] EXPR ((struct skb_shared_info *)tmp)->nr_frags VAL [((struct skb_shared_info *)tmp)->nr_frags=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __this_module={4294967301:4294967299}, clocktab={76:0}, disable64=0, he_dev={4294967304:-5}, he_devs={0:0}, he_driver={79:0}, he_ops={77:0}, he_pci_tbl={78:0}, irq_coalesce=1, LDV_IN_INTERRUPT=1, ldv_spin=0, nvcibits=-1, nvpibits=-1, readtab={75:0}, rx_skb_reserve=16, sdh=0, skb={4294967302:0}, skb={4294967302:0}, tmp={4294967305:0}, vcc={-2:0}, vcc={-2:0}] [L8807] COND FALSE !((unsigned int )((struct skb_shared_info *)tmp)->nr_frags != 0U) [L8819] CALL ldv_spin_lock() VAL [\old(ldv_spin)=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __this_module={4294967301:4294967299}, clocktab={76:0}, disable64=0, he_devs={0:0}, he_driver={79:0}, he_ops={77:0}, he_pci_tbl={78:0}, irq_coalesce=1, LDV_IN_INTERRUPT=1, ldv_spin=0, nvcibits=-1, nvpibits=-1, readtab={75:0}, rx_skb_reserve=16, sdh=0] [L9558] ldv_spin = 1 VAL [\old(ldv_spin)=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __this_module={4294967301:4294967299}, clocktab={76:0}, disable64=0, he_devs={0:0}, he_driver={79:0}, he_ops={77:0}, he_pci_tbl={78:0}, irq_coalesce=1, LDV_IN_INTERRUPT=1, ldv_spin=1, nvcibits=-1, nvpibits=-1, readtab={75:0}, rx_skb_reserve=16, sdh=0] [L8819] RET ldv_spin_lock() VAL [__mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __this_module={4294967301:4294967299}, clocktab={76:0}, disable64=0, he_dev={4294967304:-5}, he_devs={0:0}, he_driver={79:0}, he_ops={77:0}, he_pci_tbl={78:0}, irq_coalesce=1, LDV_IN_INTERRUPT=1, ldv_spin=1, nvcibits=-1, nvpibits=-1, readtab={75:0}, rx_skb_reserve=16, sdh=0, skb={4294967302:0}, skb={4294967302:0}, tmp={4294967305:0}, vcc={-2:0}, vcc={-2:0}] [L8820] CALL __alloc_tpd(he_dev) VAL [__mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __this_module={4294967301:4294967299}, clocktab={76:0}, disable64=0, he_devs={0:0}, he_driver={79:0}, he_ops={77:0}, he_pci_tbl={78:0}, irq_coalesce=1, LDV_IN_INTERRUPT=1, ldv_spin=1, nvcibits=-1, nvpibits=-1, readtab={75:0}, rx_skb_reserve=16, sdh=0] [L7794] struct he_tpd *tpd ; [L7795] dma_addr_t mapping ; [L7796] void *tmp ; [L7798] EXPR he_dev->tpd_pool [L7798] CALL ldv_dma_pool_alloc_33(he_dev->tpd_pool, 33U, & mapping) [L9494] CALL ldv_check_alloc_flags(flags) VAL [\old(flags)=33, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __this_module={4294967301:4294967299}, clocktab={76:0}, disable64=0, he_devs={0:0}, he_driver={79:0}, he_ops={77:0}, he_pci_tbl={78:0}, irq_coalesce=1, LDV_IN_INTERRUPT=1, ldv_spin=1, nvcibits=-1, nvpibits=-1, readtab={75:0}, rx_skb_reserve=16, sdh=0] [L9525] COND FALSE !(ldv_spin == 0 || flags & 32U) VAL [\old(flags)=33, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __this_module={4294967301:4294967299}, clocktab={76:0}, disable64=0, flags=33, he_devs={0:0}, he_driver={79:0}, he_ops={77:0}, he_pci_tbl={78:0}, irq_coalesce=1, LDV_IN_INTERRUPT=1, ldv_spin=1, nvcibits=-1, nvpibits=-1, readtab={75:0}, rx_skb_reserve=16, sdh=0] [L9527] CALL ldv_error() VAL [__mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __this_module={4294967301:4294967299}, clocktab={76:0}, disable64=0, he_devs={0:0}, he_driver={79:0}, he_ops={77:0}, he_pci_tbl={78:0}, irq_coalesce=1, LDV_IN_INTERRUPT=1, ldv_spin=1, nvcibits=-1, nvpibits=-1, readtab={75:0}, rx_skb_reserve=16, sdh=0] [L9511] reach_error() VAL [__mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __this_module={4294967301:4294967299}, clocktab={76:0}, disable64=0, he_devs={0:0}, he_driver={79:0}, he_ops={77:0}, he_pci_tbl={78:0}, irq_coalesce=1, LDV_IN_INTERRUPT=1, ldv_spin=1, nvcibits=-1, nvpibits=-1, readtab={75:0}, rx_skb_reserve=16, sdh=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 68 procedures, 1592 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.6s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2388 SdHoareTripleChecker+Valid, 1.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2293 mSDsluCounter, 7957 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3401 mSDsCounter, 530 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 898 IncrementalHoareTripleChecker+Invalid, 1428 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 530 mSolverCounterUnsat, 4556 mSDtfsCounter, 898 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1668occurred in iteration=2, InterpolantAutomatonStates: 7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 2 MinimizatonAttempts, 102 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 107 NumberOfCodeBlocks, 107 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 67 ConstructedInterpolants, 0 QuantifiedInterpolants, 115 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 4/4 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-12-16 03:41:28,039 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/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-3.7.3/linux-3.10-rc1-43_1a-bitvector-drivers--atm--he.ko-ldv_main0.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.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 9f4e8d7632085ae4998f8f04f0272dba6593137ea460111f26ea8fa69071af83 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-16 03:41:29,988 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-16 03:41:29,990 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-16 03:41:30,032 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-16 03:41:30,032 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-16 03:41:30,036 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-16 03:41:30,037 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-16 03:41:30,042 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-16 03:41:30,044 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-16 03:41:30,048 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-16 03:41:30,049 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-16 03:41:30,052 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-16 03:41:30,052 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-16 03:41:30,055 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-16 03:41:30,056 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-16 03:41:30,059 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-16 03:41:30,060 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-16 03:41:30,061 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-16 03:41:30,063 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-16 03:41:30,069 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-16 03:41:30,070 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-16 03:41:30,071 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-16 03:41:30,073 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-16 03:41:30,074 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-16 03:41:30,080 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-16 03:41:30,080 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-16 03:41:30,080 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-16 03:41:30,081 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-16 03:41:30,082 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-16 03:41:30,082 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-16 03:41:30,083 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-16 03:41:30,083 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-16 03:41:30,085 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-16 03:41:30,085 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-16 03:41:30,086 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-16 03:41:30,086 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-16 03:41:30,087 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-16 03:41:30,087 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-16 03:41:30,088 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-16 03:41:30,089 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-16 03:41:30,090 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-16 03:41:30,091 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2021-12-16 03:41:30,126 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-16 03:41:30,127 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-16 03:41:30,128 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-16 03:41:30,128 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-16 03:41:30,129 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-16 03:41:30,129 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-16 03:41:30,130 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-16 03:41:30,130 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-16 03:41:30,131 INFO L138 SettingsManager]: * Use SBE=true [2021-12-16 03:41:30,131 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-16 03:41:30,131 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-16 03:41:30,132 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-16 03:41:30,132 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-16 03:41:30,132 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-16 03:41:30,132 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-16 03:41:30,132 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-16 03:41:30,133 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-16 03:41:30,133 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-16 03:41:30,133 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-16 03:41:30,133 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-16 03:41:30,133 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-16 03:41:30,134 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-16 03:41:30,134 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-16 03:41:30,134 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 03:41:30,134 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-16 03:41:30,144 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-16 03:41:30,144 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-16 03:41:30,144 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-16 03:41:30,144 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-16 03:41:30,144 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-16 03:41:30,144 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-16 03:41:30,144 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-16 03:41:30,145 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-16 03:41:30,145 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-16 03:41:30,145 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9f4e8d7632085ae4998f8f04f0272dba6593137ea460111f26ea8fa69071af83 [2021-12-16 03:41:30,444 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-16 03:41:30,467 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-16 03:41:30,469 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-16 03:41:30,470 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-16 03:41:30,471 INFO L275 PluginConnector]: CDTParser initialized [2021-12-16 03:41:30,472 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.7.3/linux-3.10-rc1-43_1a-bitvector-drivers--atm--he.ko-ldv_main0.cil.out.i [2021-12-16 03:41:30,539 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ecc7da86/6eee76a6dd454f758ba4f6a3bd304a19/FLAGaafa56641 [2021-12-16 03:41:31,346 INFO L306 CDTParser]: Found 1 translation units. [2021-12-16 03:41:31,346 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.7.3/linux-3.10-rc1-43_1a-bitvector-drivers--atm--he.ko-ldv_main0.cil.out.i [2021-12-16 03:41:31,381 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ecc7da86/6eee76a6dd454f758ba4f6a3bd304a19/FLAGaafa56641 [2021-12-16 03:41:31,519 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ecc7da86/6eee76a6dd454f758ba4f6a3bd304a19 [2021-12-16 03:41:31,522 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-16 03:41:31,523 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-16 03:41:31,527 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-16 03:41:31,527 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-16 03:41:31,530 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-16 03:41:31,531 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 03:41:31" (1/1) ... [2021-12-16 03:41:31,532 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1318e73f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:41:31, skipping insertion in model container [2021-12-16 03:41:31,532 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 03:41:31" (1/1) ... [2021-12-16 03:41:31,538 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-16 03:41:31,672 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-16 03:41:33,349 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-3.7.3/linux-3.10-rc1-43_1a-bitvector-drivers--atm--he.ko-ldv_main0.cil.out.i[290796,290809] [2021-12-16 03:41:33,408 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 03:41:33,447 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-12-16 03:41:33,527 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-16 03:41:33,810 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-3.7.3/linux-3.10-rc1-43_1a-bitvector-drivers--atm--he.ko-ldv_main0.cil.out.i[290796,290809] [2021-12-16 03:41:33,822 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 03:41:33,851 INFO L203 MainTranslator]: Completed pre-run [2021-12-16 03:41:34,223 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-3.7.3/linux-3.10-rc1-43_1a-bitvector-drivers--atm--he.ko-ldv_main0.cil.out.i[290796,290809] [2021-12-16 03:41:34,232 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 03:41:34,317 INFO L208 MainTranslator]: Completed translation [2021-12-16 03:41:34,318 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:41:34 WrapperNode [2021-12-16 03:41:34,318 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-16 03:41:34,319 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-16 03:41:34,319 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-16 03:41:34,319 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-16 03:41:34,325 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:41:34" (1/1) ... [2021-12-16 03:41:34,423 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:41:34" (1/1) ... [2021-12-16 03:41:34,620 INFO L137 Inliner]: procedures = 258, calls = 2005, calls flagged for inlining = 120, calls inlined = 91, statements flattened = 4466 [2021-12-16 03:41:34,620 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-16 03:41:34,621 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-16 03:41:34,622 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-16 03:41:34,622 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-16 03:41:34,630 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:41:34" (1/1) ... [2021-12-16 03:41:34,631 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:41:34" (1/1) ... [2021-12-16 03:41:34,706 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:41:34" (1/1) ... [2021-12-16 03:41:34,707 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:41:34" (1/1) ... [2021-12-16 03:41:34,841 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:41:34" (1/1) ... [2021-12-16 03:41:34,855 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:41:34" (1/1) ... [2021-12-16 03:41:34,883 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:41:34" (1/1) ... [2021-12-16 03:41:34,911 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-16 03:41:34,913 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-16 03:41:34,913 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-16 03:41:34,914 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-16 03:41:34,914 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:41:34" (1/1) ... [2021-12-16 03:41:34,921 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 03:41:34,929 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 03:41:34,945 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-16 03:41:34,962 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-16 03:41:34,986 INFO L130 BoogieDeclarations]: Found specification of procedure he_remove_one [2021-12-16 03:41:34,986 INFO L138 BoogieDeclarations]: Found implementation of procedure he_remove_one [2021-12-16 03:41:34,986 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-12-16 03:41:34,986 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-12-16 03:41:34,986 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-12-16 03:41:34,986 INFO L130 BoogieDeclarations]: Found specification of procedure remove_wait_queue [2021-12-16 03:41:34,987 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_wait_queue [2021-12-16 03:41:34,987 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-12-16 03:41:34,987 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-12-16 03:41:34,987 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-16 03:41:34,987 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-12-16 03:41:34,987 INFO L130 BoogieDeclarations]: Found specification of procedure he_close [2021-12-16 03:41:34,987 INFO L138 BoogieDeclarations]: Found implementation of procedure he_close [2021-12-16 03:41:34,987 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_alloc [2021-12-16 03:41:34,988 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_alloc [2021-12-16 03:41:34,988 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-12-16 03:41:34,988 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-12-16 03:41:34,988 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-12-16 03:41:34,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-12-16 03:41:34,988 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-16 03:41:34,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-16 03:41:34,989 INFO L130 BoogieDeclarations]: Found specification of procedure he_phy_get [2021-12-16 03:41:34,989 INFO L138 BoogieDeclarations]: Found implementation of procedure he_phy_get [2021-12-16 03:41:34,989 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_byte [2021-12-16 03:41:34,989 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_byte [2021-12-16 03:41:34,989 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2021-12-16 03:41:34,990 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2021-12-16 03:41:34,990 INFO L130 BoogieDeclarations]: Found specification of procedure __alloc_tpd [2021-12-16 03:41:34,990 INFO L138 BoogieDeclarations]: Found implementation of procedure __alloc_tpd [2021-12-16 03:41:34,990 INFO L130 BoogieDeclarations]: Found specification of procedure rate_to_atmf [2021-12-16 03:41:34,990 INFO L138 BoogieDeclarations]: Found implementation of procedure rate_to_atmf [2021-12-16 03:41:34,990 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-16 03:41:34,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-16 03:41:34,990 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_UINT~X~$Pointer$~TO~C_INT [2021-12-16 03:41:34,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_UINT~X~$Pointer$~TO~C_INT [2021-12-16 03:41:34,991 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2021-12-16 03:41:34,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2021-12-16 03:41:34,991 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-16 03:41:34,991 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-16 03:41:34,991 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-16 03:41:34,991 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-16 03:41:34,991 INFO L130 BoogieDeclarations]: Found specification of procedure he_phy_put [2021-12-16 03:41:34,991 INFO L138 BoogieDeclarations]: Found implementation of procedure he_phy_put [2021-12-16 03:41:34,991 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-16 03:41:34,991 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-16 03:41:34,992 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-16 03:41:34,992 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-16 03:41:34,992 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-12-16 03:41:34,992 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-12-16 03:41:34,992 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-16 03:41:34,992 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-16 03:41:34,992 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-16 03:41:34,992 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-16 03:41:34,992 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_create [2021-12-16 03:41:34,992 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_create [2021-12-16 03:41:34,993 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2021-12-16 03:41:34,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2021-12-16 03:41:34,993 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-16 03:41:34,993 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-16 03:41:34,993 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_destroy [2021-12-16 03:41:34,993 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_destroy [2021-12-16 03:41:34,993 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-12-16 03:41:34,993 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-12-16 03:41:34,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-12-16 03:41:34,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-12-16 03:41:34,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-12-16 03:41:34,994 INFO L130 BoogieDeclarations]: Found specification of procedure he_readl_internal [2021-12-16 03:41:34,994 INFO L138 BoogieDeclarations]: Found implementation of procedure he_readl_internal [2021-12-16 03:41:34,994 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-16 03:41:34,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-16 03:41:34,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-16 03:41:34,994 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-12-16 03:41:34,994 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-12-16 03:41:34,994 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_word [2021-12-16 03:41:34,994 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_word [2021-12-16 03:41:34,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-16 03:41:34,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-12-16 03:41:34,994 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2021-12-16 03:41:34,994 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2021-12-16 03:41:34,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-12-16 03:41:34,995 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-16 03:41:34,995 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-16 03:41:34,995 INFO L130 BoogieDeclarations]: Found specification of procedure add_wait_queue [2021-12-16 03:41:34,995 INFO L138 BoogieDeclarations]: Found implementation of procedure add_wait_queue [2021-12-16 03:41:34,995 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2021-12-16 03:41:34,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2021-12-16 03:41:34,995 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-12-16 03:41:34,995 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-12-16 03:41:34,995 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2021-12-16 03:41:34,995 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2021-12-16 03:41:34,996 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-16 03:41:34,996 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-16 03:41:34,996 INFO L130 BoogieDeclarations]: Found specification of procedure he_writel_internal [2021-12-16 03:41:34,996 INFO L138 BoogieDeclarations]: Found implementation of procedure he_writel_internal [2021-12-16 03:41:34,996 INFO L130 BoogieDeclarations]: Found specification of procedure he_ioctl [2021-12-16 03:41:34,996 INFO L138 BoogieDeclarations]: Found implementation of procedure he_ioctl [2021-12-16 03:41:34,996 INFO L130 BoogieDeclarations]: Found specification of procedure he_open [2021-12-16 03:41:34,996 INFO L138 BoogieDeclarations]: Found implementation of procedure he_open [2021-12-16 03:41:34,996 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-16 03:41:34,996 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-16 03:41:34,996 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2021-12-16 03:41:34,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2021-12-16 03:41:34,997 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-12-16 03:41:34,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-12-16 03:41:34,997 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-16 03:41:34,997 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-16 03:41:34,997 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-12-16 03:41:34,997 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-12-16 03:41:34,997 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-12-16 03:41:34,997 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-12-16 03:41:34,997 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-12-16 03:41:34,998 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-12-16 03:41:34,998 INFO L130 BoogieDeclarations]: Found specification of procedure he_stop [2021-12-16 03:41:34,998 INFO L138 BoogieDeclarations]: Found implementation of procedure he_stop [2021-12-16 03:41:34,998 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_drvdata [2021-12-16 03:41:34,998 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_drvdata [2021-12-16 03:41:34,998 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-16 03:41:34,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-16 03:41:34,998 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-16 03:41:34,998 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-12-16 03:41:34,998 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-12-16 03:41:34,998 INFO L130 BoogieDeclarations]: Found specification of procedure __enqueue_tpd [2021-12-16 03:41:34,998 INFO L138 BoogieDeclarations]: Found implementation of procedure __enqueue_tpd [2021-12-16 03:41:34,999 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2021-12-16 03:41:34,999 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2021-12-16 03:41:34,999 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-16 03:41:34,999 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-12-16 03:41:34,999 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-12-16 03:41:34,999 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-16 03:41:34,999 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-16 03:41:34,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-16 03:41:34,999 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2021-12-16 03:41:34,999 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2021-12-16 03:41:34,999 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-16 03:41:34,999 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-12-16 03:41:35,000 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-12-16 03:41:35,000 INFO L130 BoogieDeclarations]: Found specification of procedure atm_dev_deregister [2021-12-16 03:41:35,000 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_dev_deregister [2021-12-16 03:41:35,000 INFO L130 BoogieDeclarations]: Found specification of procedure read_prom_byte [2021-12-16 03:41:35,000 INFO L138 BoogieDeclarations]: Found implementation of procedure read_prom_byte [2021-12-16 03:41:35,000 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-12-16 03:41:35,000 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-12-16 03:41:35,000 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2021-12-16 03:41:35,000 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2021-12-16 03:41:35,000 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-12-16 03:41:35,001 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-12-16 03:41:35,001 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-16 03:41:35,001 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-16 03:41:35,001 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2021-12-16 03:41:35,001 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2021-12-16 03:41:35,001 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-12-16 03:41:35,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-12-16 03:41:35,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-16 03:41:35,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-16 03:41:35,001 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_free [2021-12-16 03:41:35,001 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_free [2021-12-16 03:41:35,640 INFO L236 CfgBuilder]: Building ICFG [2021-12-16 03:41:35,643 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-16 03:42:04,619 INFO L277 CfgBuilder]: Performing block encoding [2021-12-16 03:42:04,635 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-16 03:42:04,635 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-16 03:42:04,639 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 03:42:04 BoogieIcfgContainer [2021-12-16 03:42:04,639 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-16 03:42:04,641 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-16 03:42:04,641 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-16 03:42:04,644 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-16 03:42:04,644 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 03:41:31" (1/3) ... [2021-12-16 03:42:04,645 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c86e799 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 03:42:04, skipping insertion in model container [2021-12-16 03:42:04,645 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:41:34" (2/3) ... [2021-12-16 03:42:04,645 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c86e799 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 03:42:04, skipping insertion in model container [2021-12-16 03:42:04,645 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 03:42:04" (3/3) ... [2021-12-16 03:42:04,647 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.10-rc1-43_1a-bitvector-drivers--atm--he.ko-ldv_main0.cil.out.i [2021-12-16 03:42:04,651 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-16 03:42:04,651 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-16 03:42:04,706 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-16 03:42:04,712 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-16 03:42:04,712 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-16 03:42:04,769 INFO L276 IsEmpty]: Start isEmpty. Operand has 1592 states, 1023 states have (on average 1.278592375366569) internal successors, (1308), 1042 states have internal predecessors, (1308), 500 states have call successors, (500), 67 states have call predecessors, (500), 67 states have return successors, (500), 495 states have call predecessors, (500), 500 states have call successors, (500) [2021-12-16 03:42:04,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-12-16 03:42:04,778 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:42:04,778 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-12-16 03:42:04,779 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:42:04,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:42:04,784 INFO L85 PathProgramCache]: Analyzing trace with hash 203151281, now seen corresponding path program 1 times [2021-12-16 03:42:04,797 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-16 03:42:04,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [14514503] [2021-12-16 03:42:04,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:42:04,799 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-16 03:42:04,799 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-16 03:42:04,805 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-16 03:42:04,846 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-16 03:42:05,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:42:05,703 INFO L263 TraceCheckSpWp]: Trace formula consists of 694 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-16 03:42:05,708 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 03:42:06,100 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-16 03:42:06,100 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-16 03:42:06,101 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-16 03:42:06,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [14514503] [2021-12-16 03:42:06,102 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [14514503] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:42:06,102 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:42:06,102 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-16 03:42:06,104 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135575961] [2021-12-16 03:42:06,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:42:06,107 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-16 03:42:06,108 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-16 03:42:06,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 03:42:06,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 03:42:06,136 INFO L87 Difference]: Start difference. First operand has 1592 states, 1023 states have (on average 1.278592375366569) internal successors, (1308), 1042 states have internal predecessors, (1308), 500 states have call successors, (500), 67 states have call predecessors, (500), 67 states have return successors, (500), 495 states have call predecessors, (500), 500 states have call successors, (500) Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-16 03:42:06,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 03:42:06,376 INFO L93 Difference]: Finished difference Result 3263 states and 4731 transitions. [2021-12-16 03:42:06,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 03:42:06,378 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 33 [2021-12-16 03:42:06,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 03:42:06,401 INFO L225 Difference]: With dead ends: 3263 [2021-12-16 03:42:06,401 INFO L226 Difference]: Without dead ends: 1667 [2021-12-16 03:42:06,414 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 03:42:06,416 INFO L933 BasicCegarLoop]: 2349 mSDtfsCounter, 1823 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1823 SdHoareTripleChecker+Valid, 2889 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 03:42:06,417 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1823 Valid, 2889 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 03:42:06,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1667 states. [2021-12-16 03:42:06,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1667 to 1667. [2021-12-16 03:42:06,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1667 states, 1074 states have (on average 1.266294227188082) internal successors, (1360), 1091 states have internal predecessors, (1360), 509 states have call successors, (509), 84 states have call predecessors, (509), 83 states have return successors, (508), 503 states have call predecessors, (508), 508 states have call successors, (508) [2021-12-16 03:42:06,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1667 states to 1667 states and 2377 transitions. [2021-12-16 03:42:06,605 INFO L78 Accepts]: Start accepts. Automaton has 1667 states and 2377 transitions. Word has length 33 [2021-12-16 03:42:06,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 03:42:06,605 INFO L470 AbstractCegarLoop]: Abstraction has 1667 states and 2377 transitions. [2021-12-16 03:42:06,606 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-16 03:42:06,606 INFO L276 IsEmpty]: Start isEmpty. Operand 1667 states and 2377 transitions. [2021-12-16 03:42:06,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-12-16 03:42:06,609 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:42:06,609 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-12-16 03:42:06,635 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-12-16 03:42:06,831 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-16 03:42:06,832 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:42:06,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:42:06,832 INFO L85 PathProgramCache]: Analyzing trace with hash -566443402, now seen corresponding path program 1 times [2021-12-16 03:42:06,834 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-16 03:42:06,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2019453072] [2021-12-16 03:42:06,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:42:06,834 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-16 03:42:06,834 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-16 03:42:06,839 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-16 03:42:06,881 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-12-16 03:42:07,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:42:07,633 INFO L263 TraceCheckSpWp]: Trace formula consists of 707 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-16 03:42:07,635 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 03:42:07,761 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-16 03:42:07,761 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-16 03:42:07,762 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-16 03:42:07,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2019453072] [2021-12-16 03:42:07,762 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2019453072] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:42:07,762 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:42:07,762 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-16 03:42:07,762 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947543818] [2021-12-16 03:42:07,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:42:07,764 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-16 03:42:07,764 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-16 03:42:07,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-16 03:42:07,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 03:42:07,765 INFO L87 Difference]: Start difference. First operand 1667 states and 2377 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-16 03:42:07,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 03:42:07,903 INFO L93 Difference]: Finished difference Result 3327 states and 4747 transitions. [2021-12-16 03:42:07,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-16 03:42:07,906 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 36 [2021-12-16 03:42:07,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 03:42:07,916 INFO L225 Difference]: With dead ends: 3327 [2021-12-16 03:42:07,917 INFO L226 Difference]: Without dead ends: 1668 [2021-12-16 03:42:07,925 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-16 03:42:07,927 INFO L933 BasicCegarLoop]: 2284 mSDtfsCounter, 0 mSDsluCounter, 2279 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4563 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-16 03:42:07,927 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 4563 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-16 03:42:07,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1668 states. [2021-12-16 03:42:08,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1668 to 1668. [2021-12-16 03:42:08,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1668 states, 1075 states have (on average 1.266046511627907) internal successors, (1361), 1092 states have internal predecessors, (1361), 509 states have call successors, (509), 84 states have call predecessors, (509), 83 states have return successors, (508), 503 states have call predecessors, (508), 508 states have call successors, (508) [2021-12-16 03:42:08,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1668 states to 1668 states and 2378 transitions. [2021-12-16 03:42:08,063 INFO L78 Accepts]: Start accepts. Automaton has 1668 states and 2378 transitions. Word has length 36 [2021-12-16 03:42:08,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 03:42:08,064 INFO L470 AbstractCegarLoop]: Abstraction has 1668 states and 2378 transitions. [2021-12-16 03:42:08,064 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-16 03:42:08,064 INFO L276 IsEmpty]: Start isEmpty. Operand 1668 states and 2378 transitions. [2021-12-16 03:42:08,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-12-16 03:42:08,067 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 03:42:08,068 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-12-16 03:42:08,095 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-12-16 03:42:08,287 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-16 03:42:08,288 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-16 03:42:08,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 03:42:08,288 INFO L85 PathProgramCache]: Analyzing trace with hash -55940164, now seen corresponding path program 1 times [2021-12-16 03:42:08,289 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-16 03:42:08,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [665933069] [2021-12-16 03:42:08,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 03:42:08,290 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-16 03:42:08,290 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-16 03:42:08,291 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-16 03:42:08,293 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-12-16 03:42:08,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 03:42:08,967 INFO L263 TraceCheckSpWp]: Trace formula consists of 713 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-16 03:42:08,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 03:42:09,127 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-16 03:42:09,128 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-16 03:42:09,128 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-16 03:42:09,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [665933069] [2021-12-16 03:42:09,129 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [665933069] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 03:42:09,129 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 03:42:09,129 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-16 03:42:09,129 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104622562] [2021-12-16 03:42:09,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 03:42:09,130 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 03:42:09,130 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-16 03:42:09,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 03:42:09,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 03:42:09,131 INFO L87 Difference]: Start difference. First operand 1668 states and 2378 transitions. Second operand has 5 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-16 03:42:09,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 03:42:09,333 INFO L93 Difference]: Finished difference Result 1668 states and 2378 transitions. [2021-12-16 03:42:09,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 03:42:09,334 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 38 [2021-12-16 03:42:09,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 03:42:09,334 INFO L225 Difference]: With dead ends: 1668 [2021-12-16 03:42:09,335 INFO L226 Difference]: Without dead ends: 0 [2021-12-16 03:42:09,341 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-16 03:42:09,344 INFO L933 BasicCegarLoop]: 2282 mSDtfsCounter, 10 mSDsluCounter, 6830 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 9112 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-16 03:42:09,346 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 9112 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-16 03:42:09,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-16 03:42:09,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-16 03:42:09,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 03:42:09,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-16 03:42:09,348 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 38 [2021-12-16 03:42:09,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 03:42:09,348 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-16 03:42:09,349 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-16 03:42:09,349 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-16 03:42:09,349 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-16 03:42:09,352 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-16 03:42:09,373 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-12-16 03:42:09,566 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-16 03:42:09,569 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.