./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-ethernet-smsc-smsc911x.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11a83c98-3aa1-42c3-acc0-ac71f5d1e1f8/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11a83c98-3aa1-42c3-acc0-ac71f5d1e1f8/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11a83c98-3aa1-42c3-acc0-ac71f5d1e1f8/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11a83c98-3aa1-42c3-acc0-ac71f5d1e1f8/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-smsc911x.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11a83c98-3aa1-42c3-acc0-ac71f5d1e1f8/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11a83c98-3aa1-42c3-acc0-ac71f5d1e1f8/bin/uautomizer-TMbwUNV5ro --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 3eabf9223369a4133b2add72c0b71a01ceb617c9bc4081cd5107bb51f78aed61 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 19:35:23,549 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 19:35:23,555 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 19:35:23,580 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 19:35:23,581 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 19:35:23,582 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 19:35:23,583 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 19:35:23,585 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 19:35:23,586 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 19:35:23,587 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 19:35:23,588 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 19:35:23,590 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 19:35:23,590 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 19:35:23,591 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 19:35:23,592 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 19:35:23,594 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 19:35:23,595 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 19:35:23,596 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 19:35:23,597 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 19:35:23,599 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 19:35:23,601 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 19:35:23,606 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 19:35:23,607 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 19:35:23,608 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 19:35:23,611 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 19:35:23,612 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 19:35:23,612 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 19:35:23,613 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 19:35:23,614 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 19:35:23,615 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 19:35:23,615 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 19:35:23,616 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 19:35:23,625 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 19:35:23,626 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 19:35:23,627 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 19:35:23,627 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 19:35:23,628 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 19:35:23,629 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 19:35:23,629 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 19:35:23,630 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 19:35:23,632 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 19:35:23,634 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11a83c98-3aa1-42c3-acc0-ac71f5d1e1f8/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-18 19:35:23,676 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 19:35:23,676 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 19:35:23,677 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 19:35:23,677 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 19:35:23,678 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 19:35:23,678 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 19:35:23,679 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 19:35:23,679 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 19:35:23,679 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 19:35:23,679 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 19:35:23,680 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 19:35:23,680 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 19:35:23,681 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 19:35:23,681 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 19:35:23,681 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 19:35:23,681 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 19:35:23,681 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 19:35:23,681 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 19:35:23,682 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 19:35:23,682 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 19:35:23,682 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 19:35:23,682 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:35:23,682 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 19:35:23,683 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 19:35:23,683 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 19:35:23,683 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 19:35:23,684 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 19:35:23,685 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 19:35:23,685 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 19:35:23,685 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 19:35:23,685 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_11a83c98-3aa1-42c3-acc0-ac71f5d1e1f8/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11a83c98-3aa1-42c3-acc0-ac71f5d1e1f8/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3eabf9223369a4133b2add72c0b71a01ceb617c9bc4081cd5107bb51f78aed61 [2022-11-18 19:35:24,033 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 19:35:24,071 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 19:35:24,075 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 19:35:24,077 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 19:35:24,078 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 19:35:24,079 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11a83c98-3aa1-42c3-acc0-ac71f5d1e1f8/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-smsc911x.cil.i [2022-11-18 19:35:24,149 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11a83c98-3aa1-42c3-acc0-ac71f5d1e1f8/bin/uautomizer-TMbwUNV5ro/data/8ee3407f2/4d42e3e0b9554c619d420d759794fc39/FLAGb78470ea8 [2022-11-18 19:35:25,080 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 19:35:25,080 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11a83c98-3aa1-42c3-acc0-ac71f5d1e1f8/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-smsc911x.cil.i [2022-11-18 19:35:25,158 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11a83c98-3aa1-42c3-acc0-ac71f5d1e1f8/bin/uautomizer-TMbwUNV5ro/data/8ee3407f2/4d42e3e0b9554c619d420d759794fc39/FLAGb78470ea8 [2022-11-18 19:35:25,525 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11a83c98-3aa1-42c3-acc0-ac71f5d1e1f8/bin/uautomizer-TMbwUNV5ro/data/8ee3407f2/4d42e3e0b9554c619d420d759794fc39 [2022-11-18 19:35:25,529 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 19:35:25,531 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 19:35:25,535 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 19:35:25,535 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 19:35:25,539 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 19:35:25,539 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:35:25" (1/1) ... [2022-11-18 19:35:25,541 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b745562 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:35:25, skipping insertion in model container [2022-11-18 19:35:25,541 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:35:25" (1/1) ... [2022-11-18 19:35:25,550 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 19:35:25,739 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 19:35:29,136 WARN L234 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_11a83c98-3aa1-42c3-acc0-ac71f5d1e1f8/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-smsc911x.cil.i[392538,392551] [2022-11-18 19:35:29,140 WARN L234 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_11a83c98-3aa1-42c3-acc0-ac71f5d1e1f8/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-smsc911x.cil.i[392707,392720] [2022-11-18 19:35:29,141 WARN L234 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_11a83c98-3aa1-42c3-acc0-ac71f5d1e1f8/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-smsc911x.cil.i[392874,392887] [2022-11-18 19:35:29,146 WARN L234 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_11a83c98-3aa1-42c3-acc0-ac71f5d1e1f8/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-smsc911x.cil.i[393042,393055] [2022-11-18 19:35:29,168 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:35:29,276 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 19:35:29,762 WARN L234 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_11a83c98-3aa1-42c3-acc0-ac71f5d1e1f8/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-smsc911x.cil.i[392538,392551] [2022-11-18 19:35:29,763 WARN L234 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_11a83c98-3aa1-42c3-acc0-ac71f5d1e1f8/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-smsc911x.cil.i[392707,392720] [2022-11-18 19:35:29,764 WARN L234 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_11a83c98-3aa1-42c3-acc0-ac71f5d1e1f8/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-smsc911x.cil.i[392874,392887] [2022-11-18 19:35:29,765 WARN L234 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_11a83c98-3aa1-42c3-acc0-ac71f5d1e1f8/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-smsc911x.cil.i[393042,393055] [2022-11-18 19:35:29,777 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:35:30,085 INFO L208 MainTranslator]: Completed translation [2022-11-18 19:35:30,086 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:35:30 WrapperNode [2022-11-18 19:35:30,086 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 19:35:30,087 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 19:35:30,087 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 19:35:30,087 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 19:35:30,095 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:35:30" (1/1) ... [2022-11-18 19:35:30,208 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:35:30" (1/1) ... [2022-11-18 19:35:30,456 INFO L138 Inliner]: procedures = 549, calls = 2147, calls flagged for inlining = 287, calls inlined = 262, statements flattened = 6530 [2022-11-18 19:35:30,456 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 19:35:30,457 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 19:35:30,457 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 19:35:30,457 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 19:35:30,467 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:35:30" (1/1) ... [2022-11-18 19:35:30,467 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:35:30" (1/1) ... [2022-11-18 19:35:30,489 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:35:30" (1/1) ... [2022-11-18 19:35:30,490 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:35:30" (1/1) ... [2022-11-18 19:35:30,676 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:35:30" (1/1) ... [2022-11-18 19:35:30,698 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:35:30" (1/1) ... [2022-11-18 19:35:30,726 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:35:30" (1/1) ... [2022-11-18 19:35:30,750 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:35:30" (1/1) ... [2022-11-18 19:35:30,812 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 19:35:30,813 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 19:35:30,813 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 19:35:30,816 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 19:35:30,817 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:35:30" (1/1) ... [2022-11-18 19:35:30,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:35:30,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11a83c98-3aa1-42c3-acc0-ac71f5d1e1f8/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:35:30,846 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11a83c98-3aa1-42c3-acc0-ac71f5d1e1f8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 19:35:30,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11a83c98-3aa1-42c3-acc0-ac71f5d1e1f8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 19:35:30,890 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-18 19:35:30,890 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-18 19:35:30,890 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_94 [2022-11-18 19:35:30,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_94 [2022-11-18 19:35:30,890 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-18 19:35:30,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-18 19:35:30,891 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-18 19:35:30,891 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-18 19:35:30,891 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_76 [2022-11-18 19:35:30,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_76 [2022-11-18 19:35:30,892 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-18 19:35:30,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-11-18 19:35:30,892 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-18 19:35:30,892 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-18 19:35:30,892 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_61 [2022-11-18 19:35:30,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_61 [2022-11-18 19:35:30,893 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_mii_read [2022-11-18 19:35:30,893 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_mii_read [2022-11-18 19:35:30,893 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_resume [2022-11-18 19:35:30,893 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_resume [2022-11-18 19:35:30,893 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-18 19:35:30,894 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-18 19:35:30,894 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_mac_lock_of_smsc911x_data [2022-11-18 19:35:30,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_mac_lock_of_smsc911x_data [2022-11-18 19:35:30,894 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_drv_probe [2022-11-18 19:35:30,894 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_drv_probe [2022-11-18 19:35:30,894 INFO L130 BoogieDeclarations]: Found specification of procedure no_printk [2022-11-18 19:35:30,894 INFO L138 BoogieDeclarations]: Found implementation of procedure no_printk [2022-11-18 19:35:30,894 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-18 19:35:30,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-18 19:35:30,895 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-18 19:35:30,895 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-18 19:35:30,895 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-18 19:35:30,895 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-18 19:35:30,896 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-18 19:35:30,896 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-18 19:35:30,896 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-18 19:35:30,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-18 19:35:30,896 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-18 19:35:30,897 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-18 19:35:30,897 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_set_multicast_list [2022-11-18 19:35:30,897 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_set_multicast_list [2022-11-18 19:35:30,897 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_set_hw_mac_address [2022-11-18 19:35:30,897 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_set_hw_mac_address [2022-11-18 19:35:30,897 INFO L130 BoogieDeclarations]: Found specification of procedure phy_write [2022-11-18 19:35:30,897 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_write [2022-11-18 19:35:30,897 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_resource [2022-11-18 19:35:30,898 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_resource [2022-11-18 19:35:30,898 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 19:35:30,898 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-18 19:35:30,898 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-18 19:35:30,900 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_drv_remove [2022-11-18 19:35:30,900 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_drv_remove [2022-11-18 19:35:30,900 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_rx_multicast_update [2022-11-18 19:35:30,901 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_rx_multicast_update [2022-11-18 19:35:30,901 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-18 19:35:30,901 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-18 19:35:30,901 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_mac_lock_of_smsc911x_data [2022-11-18 19:35:30,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_mac_lock_of_smsc911x_data [2022-11-18 19:35:30,901 INFO L130 BoogieDeclarations]: Found specification of procedure clk_unprepare [2022-11-18 19:35:30,902 INFO L138 BoogieDeclarations]: Found implementation of procedure clk_unprepare [2022-11-18 19:35:30,902 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-18 19:35:30,902 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2022-11-18 19:35:30,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2022-11-18 19:35:30,903 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-18 19:35:30,903 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-18 19:35:30,903 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_tx_writefifo [2022-11-18 19:35:30,904 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_tx_writefifo [2022-11-18 19:35:30,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-18 19:35:30,904 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-18 19:35:30,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-18 19:35:30,904 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_irqhandler [2022-11-18 19:35:30,904 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_irqhandler [2022-11-18 19:35:30,904 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 19:35:30,904 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-18 19:35:30,905 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-18 19:35:30,905 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-18 19:35:30,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-18 19:35:30,905 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_disable_resources [2022-11-18 19:35:30,905 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_disable_resources [2022-11-18 19:35:30,905 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_rx_get_rxstatus [2022-11-18 19:35:30,906 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_rx_get_rxstatus [2022-11-18 19:35:30,906 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc911x_reg_read [2022-11-18 19:35:30,906 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc911x_reg_read [2022-11-18 19:35:30,906 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-18 19:35:30,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-11-18 19:35:30,907 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_ethtool_getregslen [2022-11-18 19:35:30,907 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_ethtool_getregslen [2022-11-18 19:35:30,907 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 19:35:30,907 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-18 19:35:30,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-18 19:35:30,908 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-18 19:35:30,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-18 19:35:30,908 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-18 19:35:30,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-18 19:35:30,909 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2022-11-18 19:35:30,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2022-11-18 19:35:30,909 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 19:35:30,909 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-11-18 19:35:30,909 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-11-18 19:35:30,909 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-18 19:35:30,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-18 19:35:30,909 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-18 19:35:30,910 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-18 19:35:30,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-18 19:35:30,910 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-18 19:35:30,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-18 19:35:30,911 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-18 19:35:30,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-18 19:35:30,911 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_mii_write [2022-11-18 19:35:30,911 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_mii_write [2022-11-18 19:35:30,912 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_mac_complete [2022-11-18 19:35:30,912 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_mac_complete [2022-11-18 19:35:30,915 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_drvdata [2022-11-18 19:35:30,915 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_drvdata [2022-11-18 19:35:30,916 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-18 19:35:30,917 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-18 19:35:30,917 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-18 19:35:30,917 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-18 19:35:30,918 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-18 19:35:30,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-18 19:35:30,919 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32_rep [2022-11-18 19:35:30,924 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32_rep [2022-11-18 19:35:30,924 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2022-11-18 19:35:30,924 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2022-11-18 19:35:30,924 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_resource_byname [2022-11-18 19:35:30,925 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_resource_byname [2022-11-18 19:35:30,925 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-18 19:35:30,925 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-18 19:35:30,925 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-18 19:35:30,925 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-18 19:35:30,925 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2022-11-18 19:35:30,925 INFO L138 BoogieDeclarations]: Found implementation of procedure writew [2022-11-18 19:35:30,925 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 19:35:30,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 19:35:30,926 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-18 19:35:30,926 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-18 19:35:30,926 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-11-18 19:35:30,926 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-11-18 19:35:30,926 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_tx_get_txstatus [2022-11-18 19:35:30,926 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_tx_get_txstatus [2022-11-18 19:35:30,926 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-18 19:35:30,926 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-18 19:35:30,926 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_is_locked_mac_lock_of_smsc911x_data [2022-11-18 19:35:30,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_is_locked_mac_lock_of_smsc911x_data [2022-11-18 19:35:30,927 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_free [2022-11-18 19:35:30,927 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_free [2022-11-18 19:35:30,927 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-18 19:35:30,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-18 19:35:30,927 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-18 19:35:30,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-18 19:35:30,927 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_rx_readfifo [2022-11-18 19:35:30,927 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_rx_readfifo [2022-11-18 19:35:30,927 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_open [2022-11-18 19:35:30,928 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_open [2022-11-18 19:35:30,928 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_unregister [2022-11-18 19:35:30,928 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_unregister [2022-11-18 19:35:30,928 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_ethtool_get_eeprom_len [2022-11-18 19:35:30,928 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_ethtool_get_eeprom_len [2022-11-18 19:35:30,928 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-18 19:35:30,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-11-18 19:35:30,928 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_dev_lock_of_smsc911x_data [2022-11-18 19:35:30,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_dev_lock_of_smsc911x_data [2022-11-18 19:35:30,929 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_rx_readfifo_shift [2022-11-18 19:35:30,929 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_rx_readfifo_shift [2022-11-18 19:35:30,929 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_suspend [2022-11-18 19:35:30,929 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_suspend [2022-11-18 19:35:30,929 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_read_mac_address [2022-11-18 19:35:30,929 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_read_mac_address [2022-11-18 19:35:30,929 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_93 [2022-11-18 19:35:30,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_93 [2022-11-18 19:35:30,929 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_mac_write [2022-11-18 19:35:30,929 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_mac_write [2022-11-18 19:35:30,930 INFO L130 BoogieDeclarations]: Found specification of procedure phy_read [2022-11-18 19:35:30,930 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_read [2022-11-18 19:35:30,930 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-18 19:35:30,930 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-18 19:35:30,930 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-18 19:35:30,930 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-18 19:35:30,930 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2022-11-18 19:35:30,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2022-11-18 19:35:30,930 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc911x_reg_write [2022-11-18 19:35:30,931 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc911x_reg_write [2022-11-18 19:35:30,931 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 19:35:30,931 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-18 19:35:30,931 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-18 19:35:30,931 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-18 19:35:30,931 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_reg_write [2022-11-18 19:35:30,931 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_reg_write [2022-11-18 19:35:30,931 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_ethtool_nwayreset [2022-11-18 19:35:30,931 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_ethtool_nwayreset [2022-11-18 19:35:30,932 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_free_resources [2022-11-18 19:35:30,932 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_free_resources [2022-11-18 19:35:30,932 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_disable_irq_chip [2022-11-18 19:35:30,932 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_disable_irq_chip [2022-11-18 19:35:30,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-18 19:35:30,932 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_eeprom_send_cmd [2022-11-18 19:35:30,932 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_eeprom_send_cmd [2022-11-18 19:35:30,932 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-18 19:35:30,932 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-18 19:35:30,933 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_phy_adjust_link [2022-11-18 19:35:30,933 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_phy_adjust_link [2022-11-18 19:35:30,933 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_reg_read [2022-11-18 19:35:30,933 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_reg_read [2022-11-18 19:35:30,933 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-18 19:35:30,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-18 19:35:30,933 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-11-18 19:35:30,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-11-18 19:35:30,933 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_tx_update_txcounters [2022-11-18 19:35:30,934 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_tx_update_txcounters [2022-11-18 19:35:30,934 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc911x_reg_read_shift [2022-11-18 19:35:30,934 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc911x_reg_read_shift [2022-11-18 19:35:30,934 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-18 19:35:30,934 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-18 19:35:30,934 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc911x_reg_write_shift [2022-11-18 19:35:30,934 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc911x_reg_write_shift [2022-11-18 19:35:30,935 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-18 19:35:30,935 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-18 19:35:30,936 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-18 19:35:30,936 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-18 19:35:30,936 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2022-11-18 19:35:30,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2022-11-18 19:35:30,936 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2022-11-18 19:35:30,936 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2022-11-18 19:35:30,936 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_phy_enable_external [2022-11-18 19:35:30,936 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_phy_enable_external [2022-11-18 19:35:30,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 19:35:30,937 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_mac_read [2022-11-18 19:35:30,937 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_mac_read [2022-11-18 19:35:30,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-18 19:35:30,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-18 19:35:30,937 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-18 19:35:30,937 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-18 19:35:30,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_smsc911x_cleanup_module_14_2 [2022-11-18 19:35:30,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_smsc911x_cleanup_module_14_2 [2022-11-18 19:35:30,937 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_soft_reset [2022-11-18 19:35:30,937 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_soft_reset [2022-11-18 19:35:30,938 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_eeprom_enable_access [2022-11-18 19:35:30,938 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_eeprom_enable_access [2022-11-18 19:35:30,939 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32_rep [2022-11-18 19:35:30,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32_rep [2022-11-18 19:35:30,943 INFO L130 BoogieDeclarations]: Found specification of procedure spin_is_locked [2022-11-18 19:35:30,943 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_is_locked [2022-11-18 19:35:30,943 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_stop [2022-11-18 19:35:30,943 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_stop [2022-11-18 19:35:30,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-18 19:35:30,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-18 19:35:30,943 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_tx_writefifo_shift [2022-11-18 19:35:30,943 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_tx_writefifo_shift [2022-11-18 19:35:30,944 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2022-11-18 19:35:30,945 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2022-11-18 19:35:30,946 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-18 19:35:30,946 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-18 19:35:30,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 19:35:30,946 INFO L130 BoogieDeclarations]: Found specification of procedure resource_size [2022-11-18 19:35:30,946 INFO L138 BoogieDeclarations]: Found implementation of procedure resource_size [2022-11-18 19:35:30,946 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-18 19:35:30,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-18 19:35:30,946 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-11-18 19:35:30,946 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-11-18 19:35:32,060 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 19:35:32,064 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 19:35:32,518 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-18 19:35:36,349 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-18 19:35:36,534 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 19:35:36,552 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 19:35:36,553 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-18 19:35:36,558 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:35:36 BoogieIcfgContainer [2022-11-18 19:35:36,558 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 19:35:36,560 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 19:35:36,560 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 19:35:36,563 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 19:35:36,564 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:35:25" (1/3) ... [2022-11-18 19:35:36,564 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63047c61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:35:36, skipping insertion in model container [2022-11-18 19:35:36,564 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:35:30" (2/3) ... [2022-11-18 19:35:36,565 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63047c61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:35:36, skipping insertion in model container [2022-11-18 19:35:36,565 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:35:36" (3/3) ... [2022-11-18 19:35:36,566 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-smsc911x.cil.i [2022-11-18 19:35:36,584 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 19:35:36,585 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-18 19:35:36,691 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 19:35:36,698 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@baddade, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 19:35:36,698 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-18 19:35:36,709 INFO L276 IsEmpty]: Start isEmpty. Operand has 2723 states, 1834 states have (on average 1.3004362050163576) internal successors, (2385), 1871 states have internal predecessors, (2385), 767 states have call successors, (767), 122 states have call predecessors, (767), 121 states have return successors, (758), 749 states have call predecessors, (758), 758 states have call successors, (758) [2022-11-18 19:35:36,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2022-11-18 19:35:36,733 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:35:36,734 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 19, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:35:36,734 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-18 19:35:36,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:35:36,739 INFO L85 PathProgramCache]: Analyzing trace with hash -272157600, now seen corresponding path program 1 times [2022-11-18 19:35:36,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:35:36,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932911634] [2022-11-18 19:35:36,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:35:36,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:35:37,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:37,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 19:35:37,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:37,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:35:37,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:37,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-18 19:35:37,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:37,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:35:37,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:37,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 19:35:37,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:37,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:35:37,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:37,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-18 19:35:37,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:37,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:35:37,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:37,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-18 19:35:37,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:37,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:35:37,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:37,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-18 19:35:37,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:37,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:35:37,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:37,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-18 19:35:37,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:37,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:35:37,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:37,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-18 19:35:37,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:37,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:35:37,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:37,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-18 19:35:37,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:37,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:35:37,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:37,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-18 19:35:37,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:37,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:35:37,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:37,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-18 19:35:37,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:37,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:35:37,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:37,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-18 19:35:37,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:37,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:35:37,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:37,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-18 19:35:37,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:37,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:35:37,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:37,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-18 19:35:37,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:38,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:35:38,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:38,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-11-18 19:35:38,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:38,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:35:38,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:38,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-11-18 19:35:38,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:38,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:35:38,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:38,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-11-18 19:35:38,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:38,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:35:38,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:38,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-11-18 19:35:38,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:38,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:35:38,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:38,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-11-18 19:35:38,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:38,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:35:38,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:38,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-11-18 19:35:38,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:38,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2022-11-18 19:35:38,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:38,233 INFO L134 CoverageAnalysis]: Checked inductivity of 1596 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1596 trivial. 0 not checked. [2022-11-18 19:35:38,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:35:38,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932911634] [2022-11-18 19:35:38,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932911634] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:35:38,238 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:35:38,238 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 19:35:38,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933394583] [2022-11-18 19:35:38,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:35:38,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 19:35:38,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:35:38,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 19:35:38,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 19:35:38,299 INFO L87 Difference]: Start difference. First operand has 2723 states, 1834 states have (on average 1.3004362050163576) internal successors, (2385), 1871 states have internal predecessors, (2385), 767 states have call successors, (767), 122 states have call predecessors, (767), 121 states have return successors, (758), 749 states have call predecessors, (758), 758 states have call successors, (758) Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-18 19:35:47,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:35:47,930 INFO L93 Difference]: Finished difference Result 8285 states and 12601 transitions. [2022-11-18 19:35:47,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 19:35:47,932 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 237 [2022-11-18 19:35:47,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:35:47,985 INFO L225 Difference]: With dead ends: 8285 [2022-11-18 19:35:47,985 INFO L226 Difference]: Without dead ends: 5592 [2022-11-18 19:35:48,013 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:35:48,016 INFO L413 NwaCegarLoop]: 3236 mSDtfsCounter, 5034 mSDsluCounter, 3939 mSDsCounter, 0 mSdLazyCounter, 3933 mSolverCounterSat, 2183 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5709 SdHoareTripleChecker+Valid, 7175 SdHoareTripleChecker+Invalid, 6116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2183 IncrementalHoareTripleChecker+Valid, 3933 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2022-11-18 19:35:48,016 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5709 Valid, 7175 Invalid, 6116 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2183 Valid, 3933 Invalid, 0 Unknown, 0 Unchecked, 8.7s Time] [2022-11-18 19:35:48,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5592 states. [2022-11-18 19:35:48,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5592 to 5268. [2022-11-18 19:35:48,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5268 states, 3567 states have (on average 1.2772638071208298) internal successors, (4556), 3640 states have internal predecessors, (4556), 1460 states have call successors, (1460), 239 states have call predecessors, (1460), 238 states have return successors, (1456), 1438 states have call predecessors, (1456), 1456 states have call successors, (1456) [2022-11-18 19:35:48,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5268 states to 5268 states and 7472 transitions. [2022-11-18 19:35:48,478 INFO L78 Accepts]: Start accepts. Automaton has 5268 states and 7472 transitions. Word has length 237 [2022-11-18 19:35:48,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:35:48,484 INFO L495 AbstractCegarLoop]: Abstraction has 5268 states and 7472 transitions. [2022-11-18 19:35:48,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-18 19:35:48,485 INFO L276 IsEmpty]: Start isEmpty. Operand 5268 states and 7472 transitions. [2022-11-18 19:35:48,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2022-11-18 19:35:48,501 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:35:48,501 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 19, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:35:48,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 19:35:48,502 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-18 19:35:48,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:35:48,503 INFO L85 PathProgramCache]: Analyzing trace with hash 723537427, now seen corresponding path program 1 times [2022-11-18 19:35:48,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:35:48,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338398933] [2022-11-18 19:35:48,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:35:48,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:35:48,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:49,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 19:35:49,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:49,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:35:49,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:49,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-18 19:35:49,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:49,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:35:49,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:49,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 19:35:49,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:49,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:35:49,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:49,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-18 19:35:49,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:49,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:35:49,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:49,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-18 19:35:49,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:49,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:35:49,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:49,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-18 19:35:49,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:49,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:35:49,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:49,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-18 19:35:49,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:49,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:35:49,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:49,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-18 19:35:49,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:49,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:35:49,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:49,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-18 19:35:49,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:49,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:35:49,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:49,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-18 19:35:49,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:49,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:35:49,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:49,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-18 19:35:49,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:49,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:35:49,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:49,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-18 19:35:49,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:49,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:35:49,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:49,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-18 19:35:49,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:49,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:35:49,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:49,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-18 19:35:49,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:49,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:35:49,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:49,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-11-18 19:35:49,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:49,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:35:49,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:49,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-11-18 19:35:49,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:49,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:35:49,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:49,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-11-18 19:35:49,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:49,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:35:49,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:49,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-11-18 19:35:49,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:49,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:35:49,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:49,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-11-18 19:35:49,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:49,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:35:49,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:49,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-11-18 19:35:49,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:49,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2022-11-18 19:35:49,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:49,424 INFO L134 CoverageAnalysis]: Checked inductivity of 1596 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1596 trivial. 0 not checked. [2022-11-18 19:35:49,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:35:49,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338398933] [2022-11-18 19:35:49,425 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338398933] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:35:49,425 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:35:49,425 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 19:35:49,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907306314] [2022-11-18 19:35:49,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:35:49,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 19:35:49,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:35:49,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 19:35:49,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 19:35:49,428 INFO L87 Difference]: Start difference. First operand 5268 states and 7472 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-18 19:35:58,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:35:58,714 INFO L93 Difference]: Finished difference Result 16232 states and 23307 transitions. [2022-11-18 19:35:58,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 19:35:58,715 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 241 [2022-11-18 19:35:58,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:35:58,785 INFO L225 Difference]: With dead ends: 16232 [2022-11-18 19:35:58,786 INFO L226 Difference]: Without dead ends: 11007 [2022-11-18 19:35:58,816 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:35:58,820 INFO L413 NwaCegarLoop]: 3563 mSDtfsCounter, 5012 mSDsluCounter, 4180 mSDsCounter, 0 mSdLazyCounter, 3924 mSolverCounterSat, 2139 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5663 SdHoareTripleChecker+Valid, 7743 SdHoareTripleChecker+Invalid, 6063 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2139 IncrementalHoareTripleChecker+Valid, 3924 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2022-11-18 19:35:58,820 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5663 Valid, 7743 Invalid, 6063 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2139 Valid, 3924 Invalid, 0 Unknown, 0 Unchecked, 8.3s Time] [2022-11-18 19:35:58,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11007 states. [2022-11-18 19:35:59,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11007 to 10549. [2022-11-18 19:35:59,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10549 states, 7160 states have (on average 1.277513966480447) internal successors, (9147), 7316 states have internal predecessors, (9147), 2891 states have call successors, (2891), 476 states have call predecessors, (2891), 495 states have return successors, (3154), 2856 states have call predecessors, (3154), 2887 states have call successors, (3154) [2022-11-18 19:35:59,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10549 states to 10549 states and 15192 transitions. [2022-11-18 19:35:59,504 INFO L78 Accepts]: Start accepts. Automaton has 10549 states and 15192 transitions. Word has length 241 [2022-11-18 19:35:59,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:35:59,507 INFO L495 AbstractCegarLoop]: Abstraction has 10549 states and 15192 transitions. [2022-11-18 19:35:59,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-18 19:35:59,508 INFO L276 IsEmpty]: Start isEmpty. Operand 10549 states and 15192 transitions. [2022-11-18 19:35:59,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2022-11-18 19:35:59,514 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:35:59,514 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 19, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:35:59,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 19:35:59,515 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-18 19:35:59,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:35:59,516 INFO L85 PathProgramCache]: Analyzing trace with hash 1365880860, now seen corresponding path program 1 times [2022-11-18 19:35:59,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:35:59,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63744420] [2022-11-18 19:35:59,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:35:59,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:35:59,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:59,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 19:35:59,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:59,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:35:59,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:59,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-18 19:35:59,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:59,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:35:59,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:59,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 19:35:59,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:59,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:35:59,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:59,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-18 19:35:59,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:59,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:35:59,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:59,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-18 19:35:59,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:59,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:35:59,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:35:59,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-18 19:35:59,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:00,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:36:00,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:00,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-18 19:36:00,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:00,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:36:00,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:00,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-18 19:36:00,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:00,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:36:00,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:00,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-18 19:36:00,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:00,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:36:00,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:00,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-18 19:36:00,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:00,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:36:00,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:00,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-18 19:36:00,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:00,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:36:00,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:00,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-18 19:36:00,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:00,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:36:00,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:00,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-18 19:36:00,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:00,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:36:00,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:00,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-18 19:36:00,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:00,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:36:00,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:00,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-11-18 19:36:00,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:00,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:36:00,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:00,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-11-18 19:36:00,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:00,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:36:00,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:00,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-11-18 19:36:00,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:00,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:36:00,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:00,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-11-18 19:36:00,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:00,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:36:00,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:00,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-11-18 19:36:00,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:00,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:36:00,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:00,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-11-18 19:36:00,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:00,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-11-18 19:36:00,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:00,285 INFO L134 CoverageAnalysis]: Checked inductivity of 1596 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1596 trivial. 0 not checked. [2022-11-18 19:36:00,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:36:00,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63744420] [2022-11-18 19:36:00,286 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [63744420] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:36:00,286 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:36:00,286 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 19:36:00,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368129530] [2022-11-18 19:36:00,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:36:00,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 19:36:00,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:36:00,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 19:36:00,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 19:36:00,288 INFO L87 Difference]: Start difference. First operand 10549 states and 15192 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-18 19:36:08,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:36:08,846 INFO L93 Difference]: Finished difference Result 31083 states and 44700 transitions. [2022-11-18 19:36:08,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 19:36:08,847 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 248 [2022-11-18 19:36:08,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:36:08,981 INFO L225 Difference]: With dead ends: 31083 [2022-11-18 19:36:08,981 INFO L226 Difference]: Without dead ends: 20577 [2022-11-18 19:36:09,053 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:36:09,054 INFO L413 NwaCegarLoop]: 3788 mSDtfsCounter, 4422 mSDsluCounter, 4255 mSDsCounter, 0 mSdLazyCounter, 4199 mSolverCounterSat, 1901 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5075 SdHoareTripleChecker+Valid, 8043 SdHoareTripleChecker+Invalid, 6100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1901 IncrementalHoareTripleChecker+Valid, 4199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-11-18 19:36:09,055 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5075 Valid, 8043 Invalid, 6100 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1901 Valid, 4199 Invalid, 0 Unknown, 0 Unchecked, 7.4s Time] [2022-11-18 19:36:09,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20577 states. [2022-11-18 19:36:10,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20577 to 19811. [2022-11-18 19:36:10,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19811 states, 13380 states have (on average 1.2728699551569507) internal successors, (17031), 13682 states have internal predecessors, (17031), 5469 states have call successors, (5469), 928 states have call predecessors, (5469), 959 states have return successors, (5804), 5394 states have call predecessors, (5804), 5465 states have call successors, (5804) [2022-11-18 19:36:10,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19811 states to 19811 states and 28304 transitions. [2022-11-18 19:36:10,383 INFO L78 Accepts]: Start accepts. Automaton has 19811 states and 28304 transitions. Word has length 248 [2022-11-18 19:36:10,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:36:10,384 INFO L495 AbstractCegarLoop]: Abstraction has 19811 states and 28304 transitions. [2022-11-18 19:36:10,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-18 19:36:10,384 INFO L276 IsEmpty]: Start isEmpty. Operand 19811 states and 28304 transitions. [2022-11-18 19:36:10,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2022-11-18 19:36:10,389 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:36:10,389 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 19, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:36:10,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 19:36:10,389 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-18 19:36:10,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:36:10,390 INFO L85 PathProgramCache]: Analyzing trace with hash 2000076860, now seen corresponding path program 1 times [2022-11-18 19:36:10,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:36:10,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049228088] [2022-11-18 19:36:10,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:36:10,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:36:10,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:10,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 19:36:10,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:10,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:36:10,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:10,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-18 19:36:10,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:10,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:36:10,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:10,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 19:36:10,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:10,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:36:10,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:10,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-18 19:36:10,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:10,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:36:10,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:10,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-18 19:36:10,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:10,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:36:10,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:10,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-18 19:36:10,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:10,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:36:10,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:10,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-18 19:36:10,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:10,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:36:10,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:10,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-18 19:36:10,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:10,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:36:10,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:10,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-18 19:36:10,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:10,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:36:10,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:10,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-18 19:36:10,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:10,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:36:10,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:10,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-18 19:36:10,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:10,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:36:10,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:10,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-18 19:36:10,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:10,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:36:10,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:10,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-18 19:36:10,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:10,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:36:10,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:10,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-18 19:36:10,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:10,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:36:10,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:10,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-11-18 19:36:10,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:10,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:36:10,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:10,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-11-18 19:36:10,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:10,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:36:10,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:10,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-11-18 19:36:10,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:10,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:36:10,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:10,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-11-18 19:36:10,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:10,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:36:10,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:10,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-11-18 19:36:10,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:10,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:36:10,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:10,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-11-18 19:36:10,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:10,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2022-11-18 19:36:10,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:11,001 INFO L134 CoverageAnalysis]: Checked inductivity of 1596 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1596 trivial. 0 not checked. [2022-11-18 19:36:11,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:36:11,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049228088] [2022-11-18 19:36:11,002 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049228088] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:36:11,002 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:36:11,002 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 19:36:11,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443440602] [2022-11-18 19:36:11,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:36:11,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 19:36:11,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:36:11,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 19:36:11,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 19:36:11,004 INFO L87 Difference]: Start difference. First operand 19811 states and 28304 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-18 19:36:19,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:36:19,801 INFO L93 Difference]: Finished difference Result 57009 states and 81756 transitions. [2022-11-18 19:36:19,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 19:36:19,802 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 248 [2022-11-18 19:36:19,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:36:20,144 INFO L225 Difference]: With dead ends: 57009 [2022-11-18 19:36:20,145 INFO L226 Difference]: Without dead ends: 37241 [2022-11-18 19:36:20,246 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:36:20,248 INFO L413 NwaCegarLoop]: 3286 mSDtfsCounter, 4485 mSDsluCounter, 3966 mSDsCounter, 0 mSdLazyCounter, 3924 mSolverCounterSat, 2085 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5075 SdHoareTripleChecker+Valid, 7252 SdHoareTripleChecker+Invalid, 6009 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2085 IncrementalHoareTripleChecker+Valid, 3924 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:36:20,250 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5075 Valid, 7252 Invalid, 6009 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2085 Valid, 3924 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2022-11-18 19:36:20,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37241 states. [2022-11-18 19:36:22,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37241 to 35911. [2022-11-18 19:36:22,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35911 states, 24050 states have (on average 1.2682328482328482) internal successors, (30501), 24632 states have internal predecessors, (30501), 10027 states have call successors, (10027), 1780 states have call predecessors, (10027), 1831 states have return successors, (10950), 9848 states have call predecessors, (10950), 10023 states have call successors, (10950) [2022-11-18 19:36:22,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35911 states to 35911 states and 51478 transitions. [2022-11-18 19:36:22,948 INFO L78 Accepts]: Start accepts. Automaton has 35911 states and 51478 transitions. Word has length 248 [2022-11-18 19:36:22,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:36:22,953 INFO L495 AbstractCegarLoop]: Abstraction has 35911 states and 51478 transitions. [2022-11-18 19:36:22,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-18 19:36:22,954 INFO L276 IsEmpty]: Start isEmpty. Operand 35911 states and 51478 transitions. [2022-11-18 19:36:22,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2022-11-18 19:36:22,960 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:36:22,960 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 19, 19, 19, 19, 19, 19, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:36:22,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 19:36:22,961 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-18 19:36:22,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:36:22,962 INFO L85 PathProgramCache]: Analyzing trace with hash 262927816, now seen corresponding path program 1 times [2022-11-18 19:36:22,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:36:22,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88388291] [2022-11-18 19:36:22,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:36:22,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:36:23,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:23,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 19:36:23,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:23,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:36:23,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:23,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-18 19:36:23,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:23,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:36:23,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:23,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 19:36:23,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:23,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:36:23,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:23,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-18 19:36:23,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:23,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:36:23,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:23,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-18 19:36:23,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:23,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:36:23,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:23,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-18 19:36:23,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:23,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:36:23,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:23,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-18 19:36:23,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:23,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:36:23,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:23,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-18 19:36:23,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:23,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:36:23,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:23,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-18 19:36:23,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:23,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:36:23,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:23,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-18 19:36:23,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:23,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:36:23,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:23,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-18 19:36:23,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:23,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:36:23,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:23,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-18 19:36:23,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:23,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:36:23,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:23,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-18 19:36:23,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:23,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:36:23,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:23,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-18 19:36:23,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:23,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:36:23,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:23,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-11-18 19:36:23,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:23,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:36:23,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:23,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-11-18 19:36:23,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:23,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:36:23,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:23,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-11-18 19:36:23,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:23,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:36:23,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:23,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-11-18 19:36:23,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:23,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:36:23,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:23,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-11-18 19:36:23,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:23,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:36:23,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:23,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-11-18 19:36:23,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:23,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2022-11-18 19:36:23,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:23,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:36:23,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:23,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:36:23,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:23,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 19:36:23,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:23,565 INFO L134 CoverageAnalysis]: Checked inductivity of 1600 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1600 trivial. 0 not checked. [2022-11-18 19:36:23,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:36:23,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88388291] [2022-11-18 19:36:23,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88388291] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:36:23,566 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:36:23,566 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 19:36:23,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288070194] [2022-11-18 19:36:23,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:36:23,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 19:36:23,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:36:23,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 19:36:23,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 19:36:23,568 INFO L87 Difference]: Start difference. First operand 35911 states and 51478 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2022-11-18 19:36:34,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:36:34,043 INFO L93 Difference]: Finished difference Result 91430 states and 131125 transitions. [2022-11-18 19:36:34,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 19:36:34,043 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 262 [2022-11-18 19:36:34,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:36:34,385 INFO L225 Difference]: With dead ends: 91430 [2022-11-18 19:36:34,385 INFO L226 Difference]: Without dead ends: 55562 [2022-11-18 19:36:34,562 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:36:34,563 INFO L413 NwaCegarLoop]: 3224 mSDtfsCounter, 4976 mSDsluCounter, 3934 mSDsCounter, 0 mSdLazyCounter, 3983 mSolverCounterSat, 2223 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5654 SdHoareTripleChecker+Valid, 7158 SdHoareTripleChecker+Invalid, 6206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2223 IncrementalHoareTripleChecker+Valid, 3983 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-11-18 19:36:34,564 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5654 Valid, 7158 Invalid, 6206 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2223 Valid, 3983 Invalid, 0 Unknown, 0 Unchecked, 7.7s Time] [2022-11-18 19:36:34,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55562 states. [2022-11-18 19:36:37,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55562 to 53588. [2022-11-18 19:36:37,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53588 states, 35888 states have (on average 1.2658270173874275) internal successors, (45428), 36788 states have internal predecessors, (45428), 14923 states have call successors, (14923), 2697 states have call predecessors, (14923), 2774 states have return successors, (16300), 14627 states have call predecessors, (16300), 14919 states have call successors, (16300) [2022-11-18 19:36:37,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53588 states to 53588 states and 76651 transitions. [2022-11-18 19:36:37,886 INFO L78 Accepts]: Start accepts. Automaton has 53588 states and 76651 transitions. Word has length 262 [2022-11-18 19:36:37,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:36:37,887 INFO L495 AbstractCegarLoop]: Abstraction has 53588 states and 76651 transitions. [2022-11-18 19:36:37,887 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2022-11-18 19:36:37,887 INFO L276 IsEmpty]: Start isEmpty. Operand 53588 states and 76651 transitions. [2022-11-18 19:36:37,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2022-11-18 19:36:37,894 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:36:37,894 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 19, 19, 19, 19, 19, 19, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:36:37,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 19:36:37,894 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-18 19:36:37,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:36:37,895 INFO L85 PathProgramCache]: Analyzing trace with hash -1091680683, now seen corresponding path program 1 times [2022-11-18 19:36:37,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:36:37,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451772045] [2022-11-18 19:36:37,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:36:37,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:36:37,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:38,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 19:36:38,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:38,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:36:38,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:38,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-18 19:36:38,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:38,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:36:38,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:38,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 19:36:38,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:38,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:36:38,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:38,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-18 19:36:38,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:38,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:36:38,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:38,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-18 19:36:38,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:38,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:36:38,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:38,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-18 19:36:38,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:38,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:36:38,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:38,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-18 19:36:38,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:38,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:36:38,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:38,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-18 19:36:38,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:38,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:36:38,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:38,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-18 19:36:38,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:38,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:36:38,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:38,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-18 19:36:38,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:38,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:36:38,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:38,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-18 19:36:38,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:38,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:36:38,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:38,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-18 19:36:38,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:38,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:36:38,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:38,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-18 19:36:38,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:38,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:36:38,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:38,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-18 19:36:38,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:38,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:36:38,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:38,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-11-18 19:36:38,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:38,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:36:38,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:38,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-11-18 19:36:38,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:38,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:36:38,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:38,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-11-18 19:36:38,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:38,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:36:38,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:38,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-11-18 19:36:38,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:38,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:36:38,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:38,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-11-18 19:36:38,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:38,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:36:38,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:38,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-11-18 19:36:38,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:38,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-11-18 19:36:38,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:38,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:36:38,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:38,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 19:36:38,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:38,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 19:36:38,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:38,486 INFO L134 CoverageAnalysis]: Checked inductivity of 1600 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1600 trivial. 0 not checked. [2022-11-18 19:36:38,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:36:38,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451772045] [2022-11-18 19:36:38,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451772045] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:36:38,487 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:36:38,487 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 19:36:38,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959746974] [2022-11-18 19:36:38,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:36:38,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 19:36:38,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:36:38,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 19:36:38,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 19:36:38,490 INFO L87 Difference]: Start difference. First operand 53588 states and 76651 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2022-11-18 19:36:50,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:36:50,416 INFO L93 Difference]: Finished difference Result 145557 states and 208408 transitions. [2022-11-18 19:36:50,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 19:36:50,419 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 264 [2022-11-18 19:36:50,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:36:51,097 INFO L225 Difference]: With dead ends: 145557 [2022-11-18 19:36:51,097 INFO L226 Difference]: Without dead ends: 92012 [2022-11-18 19:36:51,340 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:36:51,341 INFO L413 NwaCegarLoop]: 3268 mSDtfsCounter, 4917 mSDsluCounter, 3970 mSDsCounter, 0 mSdLazyCounter, 4057 mSolverCounterSat, 2196 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5595 SdHoareTripleChecker+Valid, 7238 SdHoareTripleChecker+Invalid, 6253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2196 IncrementalHoareTripleChecker+Valid, 4057 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-11-18 19:36:51,341 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5595 Valid, 7238 Invalid, 6253 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2196 Valid, 4057 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2022-11-18 19:36:51,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92012 states. [2022-11-18 19:36:55,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92012 to 88734. [2022-11-18 19:36:55,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88734 states, 59388 states have (on average 1.2638580184549066) internal successors, (75058), 60924 states have internal predecessors, (75058), 24699 states have call successors, (24699), 4515 states have call predecessors, (24699), 4644 states have return successors, (26984), 24169 states have call predecessors, (26984), 24695 states have call successors, (26984) [2022-11-18 19:36:56,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88734 states to 88734 states and 126741 transitions. [2022-11-18 19:36:56,253 INFO L78 Accepts]: Start accepts. Automaton has 88734 states and 126741 transitions. Word has length 264 [2022-11-18 19:36:56,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:36:56,254 INFO L495 AbstractCegarLoop]: Abstraction has 88734 states and 126741 transitions. [2022-11-18 19:36:56,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2022-11-18 19:36:56,254 INFO L276 IsEmpty]: Start isEmpty. Operand 88734 states and 126741 transitions. [2022-11-18 19:36:56,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2022-11-18 19:36:56,261 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:36:56,262 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 19, 19, 19, 19, 19, 19, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:36:56,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 19:36:56,262 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-18 19:36:56,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:36:56,263 INFO L85 PathProgramCache]: Analyzing trace with hash -475931813, now seen corresponding path program 1 times [2022-11-18 19:36:56,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:36:56,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095339457] [2022-11-18 19:36:56,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:36:56,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:36:56,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:56,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 19:36:56,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:56,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:36:56,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:56,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-18 19:36:56,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:56,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:36:56,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:56,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 19:36:56,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:56,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:36:56,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:56,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-18 19:36:56,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:56,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:36:56,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:56,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-18 19:36:56,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:56,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:36:56,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:56,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-18 19:36:56,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:56,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:36:56,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:56,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-18 19:36:56,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:56,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:36:56,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:56,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-18 19:36:56,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:56,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:36:56,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:56,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-18 19:36:56,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:56,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:36:56,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:56,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-18 19:36:56,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:56,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:36:56,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:56,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-18 19:36:56,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:56,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:36:56,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:56,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-18 19:36:56,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:56,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:36:56,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:56,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-18 19:36:56,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:56,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:36:56,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:56,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-18 19:36:56,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:56,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:36:56,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:56,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-11-18 19:36:56,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:56,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:36:56,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:56,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-11-18 19:36:56,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:56,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:36:56,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:56,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-11-18 19:36:56,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:56,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:36:56,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:56,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-11-18 19:36:56,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:56,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:36:56,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:56,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-11-18 19:36:56,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:56,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:36:56,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:56,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-11-18 19:36:56,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:56,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2022-11-18 19:36:56,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:56,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-11-18 19:36:56,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:56,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-11-18 19:36:56,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:36:56,998 INFO L134 CoverageAnalysis]: Checked inductivity of 1662 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1656 trivial. 0 not checked. [2022-11-18 19:36:56,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:36:56,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095339457] [2022-11-18 19:36:56,999 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095339457] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:36:56,999 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:36:56,999 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 19:36:57,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310582503] [2022-11-18 19:36:57,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:36:57,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 19:36:57,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:36:57,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 19:36:57,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 19:36:57,001 INFO L87 Difference]: Start difference. First operand 88734 states and 126741 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-18 19:37:10,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:37:10,126 INFO L93 Difference]: Finished difference Result 217163 states and 310424 transitions. [2022-11-18 19:37:10,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 19:37:10,127 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 272 [2022-11-18 19:37:10,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:37:10,882 INFO L225 Difference]: With dead ends: 217163 [2022-11-18 19:37:10,882 INFO L226 Difference]: Without dead ends: 128472 [2022-11-18 19:37:11,624 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:37:11,625 INFO L413 NwaCegarLoop]: 4994 mSDtfsCounter, 4106 mSDsluCounter, 5011 mSDsCounter, 0 mSdLazyCounter, 4709 mSolverCounterSat, 1578 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4775 SdHoareTripleChecker+Valid, 10005 SdHoareTripleChecker+Invalid, 6287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1578 IncrementalHoareTripleChecker+Valid, 4709 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:37:11,626 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4775 Valid, 10005 Invalid, 6287 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1578 Valid, 4709 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time] [2022-11-18 19:37:11,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128472 states. [2022-11-18 19:37:17,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128472 to 123488. [2022-11-18 19:37:17,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123488 states, 83189 states have (on average 1.2628352306194328) internal successors, (105054), 85375 states have internal predecessors, (105054), 33741 states have call successors, (33741), 6416 states have call predecessors, (33741), 6555 states have return successors, (37028), 32900 states have call predecessors, (37028), 33737 states have call successors, (37028) [2022-11-18 19:37:18,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123488 states to 123488 states and 175823 transitions. [2022-11-18 19:37:18,367 INFO L78 Accepts]: Start accepts. Automaton has 123488 states and 175823 transitions. Word has length 272 [2022-11-18 19:37:18,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:37:18,368 INFO L495 AbstractCegarLoop]: Abstraction has 123488 states and 175823 transitions. [2022-11-18 19:37:18,368 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-18 19:37:18,368 INFO L276 IsEmpty]: Start isEmpty. Operand 123488 states and 175823 transitions. [2022-11-18 19:37:18,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-11-18 19:37:18,374 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:37:18,374 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 19, 19, 19, 19, 19, 19, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:37:18,374 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 19:37:18,375 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-18 19:37:18,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:37:18,375 INFO L85 PathProgramCache]: Analyzing trace with hash -110058915, now seen corresponding path program 1 times [2022-11-18 19:37:18,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:37:18,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261771855] [2022-11-18 19:37:18,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:37:18,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:37:18,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:18,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 19:37:18,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:18,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:37:18,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:18,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-18 19:37:18,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:18,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:37:18,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:18,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 19:37:18,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:18,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:37:18,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:18,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-18 19:37:18,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:18,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:37:18,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:18,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-18 19:37:18,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:18,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:37:18,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:18,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-18 19:37:18,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:18,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:37:18,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:18,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-18 19:37:18,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:18,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:37:18,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:18,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-18 19:37:18,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:18,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:37:18,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:18,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-18 19:37:18,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:18,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:37:18,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:18,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-18 19:37:18,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:18,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:37:18,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:18,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-18 19:37:18,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:18,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:37:18,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:18,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-18 19:37:18,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:18,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:37:18,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:18,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-18 19:37:18,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:18,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:37:18,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:18,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-18 19:37:18,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:18,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:37:18,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:18,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-11-18 19:37:18,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:18,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:37:18,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:18,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-11-18 19:37:18,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:18,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:37:18,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:18,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-11-18 19:37:18,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:18,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:37:18,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:18,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-11-18 19:37:18,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:18,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:37:18,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:18,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-11-18 19:37:18,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:18,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:37:18,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:18,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-11-18 19:37:18,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:18,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-11-18 19:37:18,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:18,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2022-11-18 19:37:18,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:18,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2022-11-18 19:37:18,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:18,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2022-11-18 19:37:18,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:18,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 19:37:18,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:18,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-11-18 19:37:18,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:18,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-11-18 19:37:18,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:18,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2022-11-18 19:37:18,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:18,966 INFO L134 CoverageAnalysis]: Checked inductivity of 1819 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 1809 trivial. 0 not checked. [2022-11-18 19:37:18,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:37:18,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261771855] [2022-11-18 19:37:18,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261771855] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:37:18,967 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:37:18,967 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 19:37:18,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056288685] [2022-11-18 19:37:18,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:37:18,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 19:37:18,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:37:18,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 19:37:18,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 19:37:18,969 INFO L87 Difference]: Start difference. First operand 123488 states and 175823 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29)