./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03aba722-816b-4f9d-a741-e48fc3927348/bin/uautomizer-w2VwFs6gM0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03aba722-816b-4f9d-a741-e48fc3927348/bin/uautomizer-w2VwFs6gM0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03aba722-816b-4f9d-a741-e48fc3927348/bin/uautomizer-w2VwFs6gM0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03aba722-816b-4f9d-a741-e48fc3927348/bin/uautomizer-w2VwFs6gM0/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03aba722-816b-4f9d-a741-e48fc3927348/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03aba722-816b-4f9d-a741-e48fc3927348/bin/uautomizer-w2VwFs6gM0 --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 fdbc5180119fad988a6a3a24d2f5ed804cbc2cd6d0e7bbb402b6d4dd37802e45 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 14:53:06,131 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 14:53:06,135 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 14:53:06,203 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 14:53:06,204 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 14:53:06,210 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 14:53:06,213 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 14:53:06,218 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 14:53:06,221 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 14:53:06,228 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 14:53:06,230 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 14:53:06,232 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 14:53:06,233 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 14:53:06,236 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 14:53:06,239 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 14:53:06,245 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 14:53:06,247 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 14:53:06,248 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 14:53:06,251 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 14:53:06,262 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 14:53:06,264 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 14:53:06,266 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 14:53:06,270 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 14:53:06,271 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 14:53:06,282 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 14:53:06,283 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 14:53:06,283 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 14:53:06,285 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 14:53:06,286 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 14:53:06,288 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 14:53:06,289 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 14:53:06,290 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 14:53:06,293 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 14:53:06,294 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 14:53:06,296 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 14:53:06,297 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 14:53:06,298 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 14:53:06,298 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 14:53:06,298 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 14:53:06,300 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 14:53:06,301 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 14:53:06,302 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03aba722-816b-4f9d-a741-e48fc3927348/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-22 14:53:06,357 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 14:53:06,357 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 14:53:06,358 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 14:53:06,358 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 14:53:06,368 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 14:53:06,368 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 14:53:06,369 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 14:53:06,369 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 14:53:06,369 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 14:53:06,370 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 14:53:06,371 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 14:53:06,371 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 14:53:06,372 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 14:53:06,372 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 14:53:06,372 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 14:53:06,372 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 14:53:06,373 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 14:53:06,373 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 14:53:06,373 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 14:53:06,374 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 14:53:06,374 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 14:53:06,374 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 14:53:06,374 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 14:53:06,375 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-22 14:53:06,375 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 14:53:06,375 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-22 14:53:06,376 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-22 14:53:06,376 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 14:53:06,376 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 14:53:06,378 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03aba722-816b-4f9d-a741-e48fc3927348/bin/uautomizer-w2VwFs6gM0/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03aba722-816b-4f9d-a741-e48fc3927348/bin/uautomizer-w2VwFs6gM0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fdbc5180119fad988a6a3a24d2f5ed804cbc2cd6d0e7bbb402b6d4dd37802e45 [2021-11-22 14:53:06,776 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 14:53:06,802 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 14:53:06,805 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 14:53:06,807 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 14:53:06,808 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 14:53:06,809 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03aba722-816b-4f9d-a741-e48fc3927348/bin/uautomizer-w2VwFs6gM0/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i [2021-11-22 14:53:06,881 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03aba722-816b-4f9d-a741-e48fc3927348/bin/uautomizer-w2VwFs6gM0/data/cc5cd06db/baf07cd8ef6a492d94c7619aed4d719e/FLAG4a6f03210 [2021-11-22 14:53:08,251 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 14:53:08,252 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03aba722-816b-4f9d-a741-e48fc3927348/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i [2021-11-22 14:53:08,324 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03aba722-816b-4f9d-a741-e48fc3927348/bin/uautomizer-w2VwFs6gM0/data/cc5cd06db/baf07cd8ef6a492d94c7619aed4d719e/FLAG4a6f03210 [2021-11-22 14:53:08,370 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03aba722-816b-4f9d-a741-e48fc3927348/bin/uautomizer-w2VwFs6gM0/data/cc5cd06db/baf07cd8ef6a492d94c7619aed4d719e [2021-11-22 14:53:08,373 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 14:53:08,375 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 14:53:08,380 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 14:53:08,380 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 14:53:08,385 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 14:53:08,386 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:53:08" (1/1) ... [2021-11-22 14:53:08,388 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d1f669 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:53:08, skipping insertion in model container [2021-11-22 14:53:08,388 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:53:08" (1/1) ... [2021-11-22 14:53:08,397 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 14:53:08,598 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 14:53:12,910 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03aba722-816b-4f9d-a741-e48fc3927348/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i[394320,394333] [2021-11-22 14:53:12,914 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03aba722-816b-4f9d-a741-e48fc3927348/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i[394489,394502] [2021-11-22 14:53:12,914 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03aba722-816b-4f9d-a741-e48fc3927348/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i[394656,394669] [2021-11-22 14:53:12,915 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03aba722-816b-4f9d-a741-e48fc3927348/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i[394824,394837] [2021-11-22 14:53:12,930 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 14:53:12,978 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 14:53:14,243 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03aba722-816b-4f9d-a741-e48fc3927348/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i[394320,394333] [2021-11-22 14:53:14,244 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03aba722-816b-4f9d-a741-e48fc3927348/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i[394489,394502] [2021-11-22 14:53:14,245 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03aba722-816b-4f9d-a741-e48fc3927348/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i[394656,394669] [2021-11-22 14:53:14,245 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03aba722-816b-4f9d-a741-e48fc3927348/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i[394824,394837] [2021-11-22 14:53:14,254 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 14:53:14,579 INFO L208 MainTranslator]: Completed translation [2021-11-22 14:53:14,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:53:14 WrapperNode [2021-11-22 14:53:14,580 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 14:53:14,581 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 14:53:14,581 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 14:53:14,581 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 14:53:14,590 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:53:14" (1/1) ... [2021-11-22 14:53:14,740 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:53:14" (1/1) ... [2021-11-22 14:53:21,433 INFO L137 Inliner]: procedures = 495, calls = 2611, calls flagged for inlining = 1190, calls inlined = 20339, statements flattened = 189342 [2021-11-22 14:53:21,434 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 14:53:21,435 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 14:53:21,436 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 14:53:21,436 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 14:53:21,447 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:53:14" (1/1) ... [2021-11-22 14:53:21,458 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:53:14" (1/1) ... [2021-11-22 14:53:23,001 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:53:14" (1/1) ... [2021-11-22 14:53:23,002 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:53:14" (1/1) ... [2021-11-22 14:53:26,870 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:53:14" (1/1) ... [2021-11-22 14:53:27,233 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:53:14" (1/1) ... [2021-11-22 14:53:27,530 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:53:14" (1/1) ... [2021-11-22 14:53:28,467 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 14:53:28,470 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 14:53:28,470 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 14:53:28,470 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 14:53:28,471 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:53:14" (1/1) ... [2021-11-22 14:53:28,482 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 14:53:28,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03aba722-816b-4f9d-a741-e48fc3927348/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 14:53:28,514 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03aba722-816b-4f9d-a741-e48fc3927348/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-22 14:53:28,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03aba722-816b-4f9d-a741-e48fc3927348/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-22 14:53:28,564 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_running_reset [2021-11-22 14:53:28,565 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_running_reset [2021-11-22 14:53:28,565 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_reset [2021-11-22 14:53:28,565 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_reset [2021-11-22 14:53:28,565 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-22 14:53:28,565 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-22 14:53:28,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-22 14:53:28,566 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-22 14:53:28,566 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_set_status [2021-11-22 14:53:28,566 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_set_status [2021-11-22 14:53:28,566 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-22 14:53:28,566 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 14:53:28,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-22 14:53:28,567 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-22 14:53:28,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-22 14:53:28,567 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 14:53:28,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 14:53:28,567 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-22 14:53:28,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-22 14:53:28,568 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-22 14:53:28,568 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_driver_timeout [2021-11-22 14:53:28,568 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_driver_timeout [2021-11-22 14:53:28,568 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-22 14:53:28,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-22 14:53:28,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-22 14:53:28,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 14:53:28,569 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-22 14:53:28,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-22 14:53:29,672 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 14:53:29,674 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 14:54:34,167 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res#1 := 0; [2021-11-22 14:54:34,167 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res#1 := 0; [2021-11-22 14:54:34,168 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#1: ldv_switch_1_#res#1 := 0; [2021-11-22 14:54:34,168 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#1: ldv_switch_2_#res#1 := 0; [2021-11-22 14:54:34,168 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#2: ldv_switch_2_#res#1 := 0; [2021-11-22 14:54:34,168 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#3: ldv_switch_2_#res#1 := 0; [2021-11-22 14:54:34,168 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#4: ldv_switch_2_#res#1 := 0; [2021-11-22 14:54:34,169 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#5: ldv_switch_2_#res#1 := 0; [2021-11-22 14:54:34,169 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#6: ldv_switch_2_#res#1 := 0; [2021-11-22 14:54:34,169 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#7: ldv_switch_2_#res#1 := 0; [2021-11-22 14:54:34,169 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#8: ldv_switch_2_#res#1 := 0; [2021-11-22 14:54:34,170 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#1: ldv_switch_0_#res#1 := 0; [2021-11-22 14:54:34,181 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-22 14:54:34,184 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint lmc_trace_returnLabel#14: assume { :end_inline_lmc_trace } true;havoc lmc_proto_type_#t~mem1247#1.base, lmc_proto_type_#t~mem1247#1.offset; [2021-11-22 14:54:34,184 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint lmc_trace_returnLabel#10: assume { :end_inline_lmc_trace } true;havoc lmc_proto_type_#t~mem1247#1.base, lmc_proto_type_#t~mem1247#1.offset; [2021-11-22 14:54:34,189 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 14:54:34,304 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 14:54:34,305 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-22 14:54:34,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:54:34 BoogieIcfgContainer [2021-11-22 14:54:34,333 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 14:54:34,335 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-22 14:54:34,336 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-22 14:54:34,339 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-22 14:54:34,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:53:08" (1/3) ... [2021-11-22 14:54:34,341 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7917d87c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:54:34, skipping insertion in model container [2021-11-22 14:54:34,341 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:53:14" (2/3) ... [2021-11-22 14:54:34,342 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7917d87c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:54:34, skipping insertion in model container [2021-11-22 14:54:34,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:54:34" (3/3) ... [2021-11-22 14:54:34,344 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i [2021-11-22 14:54:34,353 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-22 14:54:34,354 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 68 error locations. [2021-11-22 14:54:34,574 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-22 14:54:34,591 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 [2021-11-22 14:54:34,592 INFO L340 AbstractCegarLoop]: Starting to check reachability of 68 error locations. [2021-11-22 14:54:35,251 INFO L276 IsEmpty]: Start isEmpty. Operand has 33017 states, 32912 states have (on average 1.2386971317452602) internal successors, (40768), 32983 states have internal predecessors, (40768), 31 states have call successors, (31), 6 states have call predecessors, (31), 6 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2021-11-22 14:54:35,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-22 14:54:35,289 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:54:35,290 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:54:35,291 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION === [lmc_driver_timeoutErr0ASSERT_VIOLATIONERROR_FUNCTION, lmc_driver_timeoutErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 65 more)] === [2021-11-22 14:54:35,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:54:35,303 INFO L85 PathProgramCache]: Analyzing trace with hash 1399880474, now seen corresponding path program 1 times [2021-11-22 14:54:35,314 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:54:35,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930979767] [2021-11-22 14:54:35,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:54:35,319 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:54:35,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:54:36,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:54:36,179 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:54:36,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930979767] [2021-11-22 14:54:36,180 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930979767] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:54:36,180 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:54:36,180 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 14:54:36,182 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110487888] [2021-11-22 14:54:36,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:54:36,187 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 14:54:36,188 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:54:36,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 14:54:36,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 14:54:36,327 INFO L87 Difference]: Start difference. First operand has 33017 states, 32912 states have (on average 1.2386971317452602) internal successors, (40768), 32983 states have internal predecessors, (40768), 31 states have call successors, (31), 6 states have call predecessors, (31), 6 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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) [2021-11-22 14:54:40,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:54:40,275 INFO L93 Difference]: Finished difference Result 98383 states and 121671 transitions. [2021-11-22 14:54:40,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 14:54:40,278 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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) Word has length 66 [2021-11-22 14:54:40,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:54:40,807 INFO L225 Difference]: With dead ends: 98383 [2021-11-22 14:54:40,807 INFO L226 Difference]: Without dead ends: 65149 [2021-11-22 14:54:41,006 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 14:54:41,010 INFO L933 BasicCegarLoop]: 41124 mSDtfsCounter, 40112 mSDsluCounter, 40706 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40112 SdHoareTripleChecker+Valid, 81830 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-22 14:54:41,011 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [40112 Valid, 81830 Invalid, 59 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [16 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-22 14:54:41,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65149 states. [2021-11-22 14:54:43,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65149 to 64880. [2021-11-22 14:54:43,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64880 states, 64740 states have (on average 1.2327154772937905) internal successors, (79806), 64813 states have internal predecessors, (79806), 60 states have call successors, (60), 12 states have call predecessors, (60), 12 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2021-11-22 14:54:44,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64880 states to 64880 states and 79926 transitions. [2021-11-22 14:54:44,074 INFO L78 Accepts]: Start accepts. Automaton has 64880 states and 79926 transitions. Word has length 66 [2021-11-22 14:54:44,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:54:44,077 INFO L470 AbstractCegarLoop]: Abstraction has 64880 states and 79926 transitions. [2021-11-22 14:54:44,078 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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) [2021-11-22 14:54:44,080 INFO L276 IsEmpty]: Start isEmpty. Operand 64880 states and 79926 transitions. [2021-11-22 14:54:44,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-11-22 14:54:44,090 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:54:44,091 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:54:44,092 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-22 14:54:44,093 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [lmc_driver_timeoutErr0ASSERT_VIOLATIONERROR_FUNCTION, lmc_driver_timeoutErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 65 more)] === [2021-11-22 14:54:44,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:54:44,096 INFO L85 PathProgramCache]: Analyzing trace with hash -1953592528, now seen corresponding path program 1 times [2021-11-22 14:54:44,100 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:54:44,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105062532] [2021-11-22 14:54:44,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:54:44,101 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:54:44,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:54:44,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:54:44,419 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:54:44,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105062532] [2021-11-22 14:54:44,420 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105062532] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:54:44,428 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:54:44,429 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 14:54:44,430 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756480929] [2021-11-22 14:54:44,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:54:44,432 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 14:54:44,432 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:54:44,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 14:54:44,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 14:54:44,434 INFO L87 Difference]: Start difference. First operand 64880 states and 79926 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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) [2021-11-22 14:54:49,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:54:49,077 INFO L93 Difference]: Finished difference Result 194098 states and 239203 transitions. [2021-11-22 14:54:49,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 14:54:49,078 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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) Word has length 67 [2021-11-22 14:54:49,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:54:49,782 INFO L225 Difference]: With dead ends: 194098 [2021-11-22 14:54:49,782 INFO L226 Difference]: Without dead ends: 129343 [2021-11-22 14:54:50,058 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 14:54:50,061 INFO L933 BasicCegarLoop]: 40385 mSDtfsCounter, 39991 mSDsluCounter, 40311 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39991 SdHoareTripleChecker+Valid, 80696 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 14:54:50,062 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [39991 Valid, 80696 Invalid, 44 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 14:54:50,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129343 states. [2021-11-22 14:54:55,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129343 to 129285. [2021-11-22 14:54:55,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129285 states, 129073 states have (on average 1.232868221858948) internal successors, (159130), 129152 states have internal predecessors, (159130), 120 states have call successors, (120), 24 states have call predecessors, (120), 24 states have return successors, (120), 120 states have call predecessors, (120), 120 states have call successors, (120) [2021-11-22 14:54:56,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129285 states to 129285 states and 159370 transitions. [2021-11-22 14:54:56,167 INFO L78 Accepts]: Start accepts. Automaton has 129285 states and 159370 transitions. Word has length 67 [2021-11-22 14:54:56,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:54:56,168 INFO L470 AbstractCegarLoop]: Abstraction has 129285 states and 159370 transitions. [2021-11-22 14:54:56,168 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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) [2021-11-22 14:54:56,169 INFO L276 IsEmpty]: Start isEmpty. Operand 129285 states and 159370 transitions. [2021-11-22 14:54:56,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-22 14:54:56,173 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:54:56,173 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:54:56,173 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-22 14:54:56,174 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr61ASSERT_VIOLATIONERROR_FUNCTION === [lmc_driver_timeoutErr0ASSERT_VIOLATIONERROR_FUNCTION, lmc_driver_timeoutErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 65 more)] === [2021-11-22 14:54:56,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:54:56,175 INFO L85 PathProgramCache]: Analyzing trace with hash -66100681, now seen corresponding path program 1 times [2021-11-22 14:54:56,175 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:54:56,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757964858] [2021-11-22 14:54:56,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:54:56,176 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:54:56,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:54:56,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:54:56,918 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:54:56,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757964858] [2021-11-22 14:54:56,918 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757964858] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:54:56,918 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:54:56,919 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 14:54:56,919 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063762195] [2021-11-22 14:54:56,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:54:56,920 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 14:54:56,920 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:54:56,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 14:54:56,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 14:54:56,921 INFO L87 Difference]: Start difference. First operand 129285 states and 159370 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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) [2021-11-22 14:55:04,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:55:04,069 INFO L93 Difference]: Finished difference Result 371717 states and 458570 transitions. [2021-11-22 14:55:04,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 14:55:04,069 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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) Word has length 71 [2021-11-22 14:55:04,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:55:05,863 INFO L225 Difference]: With dead ends: 371717 [2021-11-22 14:55:05,864 INFO L226 Difference]: Without dead ends: 242557 [2021-11-22 14:55:06,813 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 14:55:06,817 INFO L933 BasicCegarLoop]: 40491 mSDtfsCounter, 35387 mSDsluCounter, 40300 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35387 SdHoareTripleChecker+Valid, 80791 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-22 14:55:06,818 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35387 Valid, 80791 Invalid, 60 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-22 14:55:07,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242557 states. [2021-11-22 14:55:15,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242557 to 240855. [2021-11-22 14:55:15,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240855 states, 240519 states have (on average 1.2339565689197112) internal successors, (296790), 240610 states have internal predecessors, (296790), 220 states have call successors, (220), 48 states have call predecessors, (220), 48 states have return successors, (284), 220 states have call predecessors, (284), 220 states have call successors, (284) [2021-11-22 14:55:17,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240855 states to 240855 states and 297294 transitions. [2021-11-22 14:55:17,242 INFO L78 Accepts]: Start accepts. Automaton has 240855 states and 297294 transitions. Word has length 71 [2021-11-22 14:55:17,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:55:17,243 INFO L470 AbstractCegarLoop]: Abstraction has 240855 states and 297294 transitions. [2021-11-22 14:55:17,243 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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) [2021-11-22 14:55:17,244 INFO L276 IsEmpty]: Start isEmpty. Operand 240855 states and 297294 transitions. [2021-11-22 14:55:17,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-22 14:55:17,248 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:55:17,249 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:55:17,249 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-22 14:55:17,249 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting lmc_driver_timeoutErr0ASSERT_VIOLATIONERROR_FUNCTION === [lmc_driver_timeoutErr0ASSERT_VIOLATIONERROR_FUNCTION, lmc_driver_timeoutErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 65 more)] === [2021-11-22 14:55:17,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:55:17,250 INFO L85 PathProgramCache]: Analyzing trace with hash 1245386543, now seen corresponding path program 1 times [2021-11-22 14:55:17,251 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:55:17,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049738529] [2021-11-22 14:55:17,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:55:17,252 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:55:17,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:55:17,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:55:17,459 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:55:17,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049738529] [2021-11-22 14:55:17,460 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049738529] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:55:17,460 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:55:17,460 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 14:55:17,460 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302306141] [2021-11-22 14:55:17,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:55:17,461 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 14:55:17,462 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:55:17,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 14:55:17,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 14:55:17,463 INFO L87 Difference]: Start difference. First operand 240855 states and 297294 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)