./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.7.3/main0_drivers-vhost-tcm_vhost-ko--32_7a--linux-3.7.3.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 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_64ea10b8-5b10-4f43-8fa2-c8c34f487951/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64ea10b8-5b10-4f43-8fa2-c8c34f487951/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64ea10b8-5b10-4f43-8fa2-c8c34f487951/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64ea10b8-5b10-4f43-8fa2-c8c34f487951/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.7.3/main0_drivers-vhost-tcm_vhost-ko--32_7a--linux-3.7.3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64ea10b8-5b10-4f43-8fa2-c8c34f487951/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64ea10b8-5b10-4f43-8fa2-c8c34f487951/bin/uautomizer-vX5HgA9Q3a --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 3d776a54fbebbd358d59ab0126298feae1e40360b6fb5e6158cd54ba5ef877f7 --- 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-b5237d8 [2022-11-21 09:09:36,881 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 09:09:36,884 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 09:09:36,909 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 09:09:36,910 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 09:09:36,912 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 09:09:36,914 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 09:09:36,916 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 09:09:36,918 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 09:09:36,919 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 09:09:36,921 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 09:09:36,922 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 09:09:36,923 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 09:09:36,924 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 09:09:36,926 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 09:09:36,928 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 09:09:36,929 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 09:09:36,930 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 09:09:36,933 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 09:09:36,935 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 09:09:36,937 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 09:09:36,939 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 09:09:36,941 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 09:09:36,942 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 09:09:36,947 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 09:09:36,948 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 09:09:36,948 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 09:09:36,949 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 09:09:36,950 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 09:09:36,952 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 09:09:36,952 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 09:09:36,953 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 09:09:36,955 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 09:09:36,956 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 09:09:36,958 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 09:09:36,958 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 09:09:36,959 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 09:09:36,960 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 09:09:36,961 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 09:09:36,962 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 09:09:36,963 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 09:09:36,964 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64ea10b8-5b10-4f43-8fa2-c8c34f487951/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-21 09:09:36,995 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 09:09:36,996 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 09:09:36,997 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 09:09:36,997 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 09:09:36,998 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 09:09:36,998 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 09:09:36,999 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 09:09:37,000 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 09:09:37,000 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 09:09:37,001 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 09:09:37,001 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 09:09:37,001 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 09:09:37,002 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 09:09:37,002 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 09:09:37,002 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 09:09:37,003 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 09:09:37,003 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 09:09:37,003 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 09:09:37,004 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 09:09:37,004 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 09:09:37,005 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 09:09:37,005 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 09:09:37,005 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 09:09:37,006 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 09:09:37,006 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 09:09:37,006 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 09:09:37,007 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 09:09:37,007 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 09:09:37,008 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 09:09:37,008 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 09:09:37,008 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_64ea10b8-5b10-4f43-8fa2-c8c34f487951/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64ea10b8-5b10-4f43-8fa2-c8c34f487951/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3d776a54fbebbd358d59ab0126298feae1e40360b6fb5e6158cd54ba5ef877f7 [2022-11-21 09:09:37,309 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 09:09:37,334 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 09:09:37,337 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 09:09:37,339 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 09:09:37,339 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 09:09:37,341 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64ea10b8-5b10-4f43-8fa2-c8c34f487951/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/ldv-linux-3.7.3/main0_drivers-vhost-tcm_vhost-ko--32_7a--linux-3.7.3.i [2022-11-21 09:09:40,840 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 09:09:41,808 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 09:09:41,809 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64ea10b8-5b10-4f43-8fa2-c8c34f487951/sv-benchmarks/c/ldv-linux-3.7.3/main0_drivers-vhost-tcm_vhost-ko--32_7a--linux-3.7.3.i [2022-11-21 09:09:41,906 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64ea10b8-5b10-4f43-8fa2-c8c34f487951/bin/uautomizer-vX5HgA9Q3a/data/cd2dc93f5/f26a0a756abf4a3caef4b468cf100086/FLAG701dfd317 [2022-11-21 09:09:41,932 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64ea10b8-5b10-4f43-8fa2-c8c34f487951/bin/uautomizer-vX5HgA9Q3a/data/cd2dc93f5/f26a0a756abf4a3caef4b468cf100086 [2022-11-21 09:09:41,937 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 09:09:41,940 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 09:09:41,946 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 09:09:41,946 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 09:09:41,951 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 09:09:41,952 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:09:41" (1/1) ... [2022-11-21 09:09:41,954 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45b1c05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:09:41, skipping insertion in model container [2022-11-21 09:09:41,954 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:09:41" (1/1) ... [2022-11-21 09:09:41,963 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 09:09:42,184 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 09:09:46,452 WARN L237 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_64ea10b8-5b10-4f43-8fa2-c8c34f487951/sv-benchmarks/c/ldv-linux-3.7.3/main0_drivers-vhost-tcm_vhost-ko--32_7a--linux-3.7.3.i[462796,462809] [2022-11-21 09:09:46,700 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 09:09:46,724 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 09:09:47,366 WARN L237 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_64ea10b8-5b10-4f43-8fa2-c8c34f487951/sv-benchmarks/c/ldv-linux-3.7.3/main0_drivers-vhost-tcm_vhost-ko--32_7a--linux-3.7.3.i[462796,462809] [2022-11-21 09:09:47,390 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 09:09:47,576 INFO L208 MainTranslator]: Completed translation [2022-11-21 09:09:47,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:09:47 WrapperNode [2022-11-21 09:09:47,579 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 09:09:47,582 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 09:09:47,583 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 09:09:47,583 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 09:09:47,593 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:09:47" (1/1) ... [2022-11-21 09:09:47,762 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:09:47" (1/1) ... [2022-11-21 09:09:48,103 INFO L138 Inliner]: procedures = 445, calls = 3488, calls flagged for inlining = 226, calls inlined = 196, statements flattened = 7816 [2022-11-21 09:09:48,104 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 09:09:48,105 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 09:09:48,106 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 09:09:48,106 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 09:09:48,118 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:09:47" (1/1) ... [2022-11-21 09:09:48,119 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:09:47" (1/1) ... [2022-11-21 09:09:48,160 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:09:47" (1/1) ... [2022-11-21 09:09:48,161 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:09:47" (1/1) ... [2022-11-21 09:09:48,384 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:09:47" (1/1) ... [2022-11-21 09:09:48,433 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:09:47" (1/1) ... [2022-11-21 09:09:48,478 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:09:47" (1/1) ... [2022-11-21 09:09:48,502 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:09:47" (1/1) ... [2022-11-21 09:09:48,555 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 09:09:48,557 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 09:09:48,558 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 09:09:48,558 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 09:09:48,559 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:09:47" (1/1) ... [2022-11-21 09:09:48,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 09:09:48,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64ea10b8-5b10-4f43-8fa2-c8c34f487951/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:09:48,600 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64ea10b8-5b10-4f43-8fa2-c8c34f487951/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 09:09:48,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64ea10b8-5b10-4f43-8fa2-c8c34f487951/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 09:09:48,648 INFO L130 BoogieDeclarations]: Found specification of procedure vq_access_ok [2022-11-21 09:09:48,649 INFO L138 BoogieDeclarations]: Found implementation of procedure vq_access_ok [2022-11-21 09:09:48,649 INFO L130 BoogieDeclarations]: Found specification of procedure wake_up_process [2022-11-21 09:09:48,649 INFO L138 BoogieDeclarations]: Found implementation of procedure wake_up_process [2022-11-21 09:09:48,650 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-11-21 09:09:48,650 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-11-21 09:09:48,651 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-21 09:09:48,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-21 09:09:48,651 INFO L130 BoogieDeclarations]: Found specification of procedure __put_user_bad [2022-11-21 09:09:48,651 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_vhost_release_fabric_acl [2022-11-21 09:09:48,651 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_vhost_release_fabric_acl [2022-11-21 09:09:48,651 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-21 09:09:48,651 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-21 09:09:48,652 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_vq_access_ok [2022-11-21 09:09:48,652 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_vq_access_ok [2022-11-21 09:09:48,652 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_vhost_close_session [2022-11-21 09:09:48,652 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_vhost_close_session [2022-11-21 09:09:48,652 INFO L130 BoogieDeclarations]: Found specification of procedure strstr [2022-11-21 09:09:48,652 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_work_queue [2022-11-21 09:09:48,653 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_work_queue [2022-11-21 09:09:48,653 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 09:09:48,653 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_tcm_vhost_mutex [2022-11-21 09:09:48,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_tcm_vhost_mutex [2022-11-21 09:09:48,653 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-21 09:09:48,653 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-21 09:09:48,653 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-21 09:09:48,654 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-21 09:09:48,654 INFO L130 BoogieDeclarations]: Found specification of procedure fput [2022-11-21 09:09:48,654 INFO L138 BoogieDeclarations]: Found implementation of procedure fput [2022-11-21 09:09:48,654 INFO L130 BoogieDeclarations]: Found specification of procedure next_desc [2022-11-21 09:09:48,654 INFO L138 BoogieDeclarations]: Found implementation of procedure next_desc [2022-11-21 09:09:48,654 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_vhost_drop_tpg [2022-11-21 09:09:48,655 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_vhost_drop_tpg [2022-11-21 09:09:48,656 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2022-11-21 09:09:48,656 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2022-11-21 09:09:48,656 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2022-11-21 09:09:48,656 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2022-11-21 09:09:48,657 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_scsi_open [2022-11-21 09:09:48,657 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_scsi_open [2022-11-21 09:09:48,657 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-21 09:09:48,658 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-21 09:09:48,658 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-21 09:09:48,658 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_has_feature [2022-11-21 09:09:48,658 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_has_feature [2022-11-21 09:09:48,658 INFO L130 BoogieDeclarations]: Found specification of procedure sg_page [2022-11-21 09:09:48,659 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_page [2022-11-21 09:09:48,659 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-21 09:09:48,659 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-21 09:09:48,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-21 09:09:48,659 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 09:09:48,659 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-21 09:09:48,660 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-21 09:09:48,660 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_work_init [2022-11-21 09:09:48,660 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_work_init [2022-11-21 09:09:48,660 INFO L130 BoogieDeclarations]: Found specification of procedure __get_user_bad [2022-11-21 09:09:48,661 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-11-21 09:09:48,661 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-11-21 09:09:48,662 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_scsi_complete_cmd [2022-11-21 09:09:48,662 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_scsi_complete_cmd [2022-11-21 09:09:48,662 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-11-21 09:09:48,662 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-11-21 09:09:48,663 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex [2022-11-21 09:09:48,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex [2022-11-21 09:09:48,663 INFO L130 BoogieDeclarations]: Found specification of procedure translate_desc [2022-11-21 09:09:48,664 INFO L138 BoogieDeclarations]: Found implementation of procedure translate_desc [2022-11-21 09:09:48,664 INFO L130 BoogieDeclarations]: Found specification of procedure eventfd_ctx_put [2022-11-21 09:09:48,664 INFO L138 BoogieDeclarations]: Found implementation of procedure eventfd_ctx_put [2022-11-21 09:09:48,664 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2022-11-21 09:09:48,664 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2022-11-21 09:09:48,664 INFO L130 BoogieDeclarations]: Found specification of procedure sas_get_pr_transport_id [2022-11-21 09:09:48,665 INFO L138 BoogieDeclarations]: Found implementation of procedure sas_get_pr_transport_id [2022-11-21 09:09:48,665 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_tv_tpg_mutex [2022-11-21 09:09:48,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_tv_tpg_mutex [2022-11-21 09:09:48,666 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-21 09:09:48,666 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 09:09:48,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-21 09:09:48,666 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-21 09:09:48,667 INFO L130 BoogieDeclarations]: Found specification of procedure kthread_stop [2022-11-21 09:09:48,667 INFO L138 BoogieDeclarations]: Found implementation of procedure kthread_stop [2022-11-21 09:09:48,667 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-21 09:09:48,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-21 09:09:48,668 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-11-21 09:09:48,668 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-11-21 09:09:48,668 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_work_seq_done [2022-11-21 09:09:48,669 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_work_seq_done [2022-11-21 09:09:48,669 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_disable_notify [2022-11-21 09:09:48,669 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_disable_notify [2022-11-21 09:09:48,669 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-21 09:09:48,670 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-21 09:09:48,670 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_update_used_flags [2022-11-21 09:09:48,671 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_update_used_flags [2022-11-21 09:09:48,671 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_from_user [2022-11-21 09:09:48,671 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_from_user [2022-11-21 09:09:48,671 INFO L130 BoogieDeclarations]: Found specification of procedure lock_is_held [2022-11-21 09:09:48,671 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_is_held [2022-11-21 09:09:48,671 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex [2022-11-21 09:09:48,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex [2022-11-21 09:09:48,672 INFO L130 BoogieDeclarations]: Found specification of procedure log_access_ok [2022-11-21 09:09:48,672 INFO L138 BoogieDeclarations]: Found implementation of procedure log_access_ok [2022-11-21 09:09:48,672 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-11-21 09:09:48,673 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-11-21 09:09:48,673 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_vhost_alloc_fabric_acl [2022-11-21 09:09:48,673 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_vhost_alloc_fabric_acl [2022-11-21 09:09:48,674 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_tcm_vhost_mutex [2022-11-21 09:09:48,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_tcm_vhost_mutex [2022-11-21 09:09:48,674 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_scsi_ioctl [2022-11-21 09:09:48,674 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_scsi_ioctl [2022-11-21 09:09:48,674 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-11-21 09:09:48,675 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-11-21 09:09:48,675 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 09:09:48,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 09:09:48,675 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_vhost_drop_tport [2022-11-21 09:09:48,675 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_vhost_drop_tport [2022-11-21 09:09:48,675 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2022-11-21 09:09:48,676 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2022-11-21 09:09:48,676 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-21 09:09:48,676 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-21 09:09:48,677 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_vq_free_iovecs [2022-11-21 09:09:48,677 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_vq_free_iovecs [2022-11-21 09:09:48,681 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-21 09:09:48,681 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_work_flush [2022-11-21 09:09:48,681 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_work_flush [2022-11-21 09:09:48,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-21 09:09:48,682 INFO L130 BoogieDeclarations]: Found specification of procedure log_write [2022-11-21 09:09:48,684 INFO L138 BoogieDeclarations]: Found implementation of procedure log_write [2022-11-21 09:09:48,685 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-21 09:09:48,685 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-21 09:09:48,685 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_vq_reset [2022-11-21 09:09:48,689 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_vq_reset [2022-11-21 09:09:48,689 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2022-11-21 09:09:48,689 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2022-11-21 09:09:48,689 INFO L130 BoogieDeclarations]: Found specification of procedure vq_log_access_ok [2022-11-21 09:09:48,690 INFO L138 BoogieDeclarations]: Found implementation of procedure vq_log_access_ok [2022-11-21 09:09:48,690 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-21 09:09:48,690 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-21 09:09:48,690 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-21 09:09:48,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-21 09:09:48,690 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-21 09:09:48,690 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-21 09:09:48,690 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_poll_queue [2022-11-21 09:09:48,690 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_poll_queue [2022-11-21 09:09:48,691 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-11-21 09:09:48,691 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-11-21 09:09:48,691 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-11-21 09:09:48,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-11-21 09:09:48,691 INFO L130 BoogieDeclarations]: Found specification of procedure eventfd_fget [2022-11-21 09:09:48,691 INFO L138 BoogieDeclarations]: Found implementation of procedure eventfd_fget [2022-11-21 09:09:48,691 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 09:09:48,691 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-21 09:09:48,692 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-21 09:09:48,692 INFO L130 BoogieDeclarations]: Found specification of procedure vq_memory_access_ok [2022-11-21 09:09:48,692 INFO L138 BoogieDeclarations]: Found implementation of procedure vq_memory_access_ok [2022-11-21 09:09:48,692 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-21 09:09:48,692 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2022-11-21 09:09:48,692 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2022-11-21 09:09:48,692 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_vhost_release_cmd [2022-11-21 09:09:48,692 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_vhost_release_cmd [2022-11-21 09:09:48,693 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_vhost_set_default_node_attrs [2022-11-21 09:09:48,693 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_vhost_set_default_node_attrs [2022-11-21 09:09:48,693 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_vhost_drop_nexus [2022-11-21 09:09:48,693 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_vhost_drop_nexus [2022-11-21 09:09:48,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-21 09:09:48,693 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_dev_cleanup [2022-11-21 09:09:48,693 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_dev_cleanup [2022-11-21 09:09:48,694 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-21 09:09:48,694 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-21 09:09:48,694 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_tv_tpg_mutex [2022-11-21 09:09:48,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_tv_tpg_mutex [2022-11-21 09:09:48,694 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-11-21 09:09:48,694 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-11-21 09:09:48,694 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-21 09:09:48,694 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-21 09:09:48,694 INFO L130 BoogieDeclarations]: Found specification of procedure sas_get_fabric_proto_ident [2022-11-21 09:09:48,695 INFO L138 BoogieDeclarations]: Found implementation of procedure sas_get_fabric_proto_ident [2022-11-21 09:09:48,695 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2022-11-21 09:09:48,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2022-11-21 09:09:48,695 INFO L130 BoogieDeclarations]: Found specification of procedure get_user_pages_fast [2022-11-21 09:09:48,695 INFO L138 BoogieDeclarations]: Found implementation of procedure get_user_pages_fast [2022-11-21 09:09:48,695 INFO L130 BoogieDeclarations]: Found specification of procedure transport_generic_free_cmd [2022-11-21 09:09:48,697 INFO L138 BoogieDeclarations]: Found implementation of procedure transport_generic_free_cmd [2022-11-21 09:09:48,697 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_scsi_deregister [2022-11-21 09:09:48,697 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_scsi_deregister [2022-11-21 09:09:48,697 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-21 09:09:48,697 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-21 09:09:48,698 INFO L130 BoogieDeclarations]: Found specification of procedure __rcu_read_lock [2022-11-21 09:09:48,698 INFO L138 BoogieDeclarations]: Found implementation of procedure __rcu_read_lock [2022-11-21 09:09:48,698 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_command_size [2022-11-21 09:09:48,698 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_command_size [2022-11-21 09:09:48,698 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_vhost_dump_proto_id [2022-11-21 09:09:48,698 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_vhost_dump_proto_id [2022-11-21 09:09:48,698 INFO L130 BoogieDeclarations]: Found specification of procedure eventfd_ctx_fileget [2022-11-21 09:09:48,698 INFO L138 BoogieDeclarations]: Found implementation of procedure eventfd_ctx_fileget [2022-11-21 09:09:48,700 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-21 09:09:48,700 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-21 09:09:48,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 09:09:48,701 INFO L130 BoogieDeclarations]: Found specification of procedure __rcu_read_unlock [2022-11-21 09:09:48,701 INFO L138 BoogieDeclarations]: Found implementation of procedure __rcu_read_unlock [2022-11-21 09:09:48,701 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_scsi_clear_endpoint [2022-11-21 09:09:48,701 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_scsi_clear_endpoint [2022-11-21 09:09:48,701 INFO L130 BoogieDeclarations]: Found specification of procedure mmput [2022-11-21 09:09:48,701 INFO L138 BoogieDeclarations]: Found implementation of procedure mmput [2022-11-21 09:09:48,701 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-11-21 09:09:48,701 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-11-21 09:09:48,702 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-21 09:09:48,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-21 09:09:48,702 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_scsi_flush_vq [2022-11-21 09:09:48,702 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_scsi_flush_vq [2022-11-21 09:09:48,702 INFO L130 BoogieDeclarations]: Found specification of procedure copy_user_generic [2022-11-21 09:09:48,702 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_user_generic [2022-11-21 09:09:48,702 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_cpu_idle [2022-11-21 09:09:48,702 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_cpu_idle [2022-11-21 09:09:48,703 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-11-21 09:09:48,703 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-11-21 09:09:48,703 INFO L130 BoogieDeclarations]: Found specification of procedure sas_parse_pr_out_transport_id [2022-11-21 09:09:48,703 INFO L138 BoogieDeclarations]: Found implementation of procedure sas_parse_pr_out_transport_id [2022-11-21 09:09:48,703 INFO L130 BoogieDeclarations]: Found specification of procedure eventfd_signal [2022-11-21 09:09:48,703 INFO L138 BoogieDeclarations]: Found implementation of procedure eventfd_signal [2022-11-21 09:09:48,703 INFO L130 BoogieDeclarations]: Found specification of procedure utsname [2022-11-21 09:09:48,703 INFO L138 BoogieDeclarations]: Found implementation of procedure utsname [2022-11-21 09:09:48,704 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_poll_stop [2022-11-21 09:09:48,704 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_poll_stop [2022-11-21 09:09:48,704 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2022-11-21 09:09:48,704 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2022-11-21 09:09:48,704 INFO L130 BoogieDeclarations]: Found specification of procedure memory_access_ok [2022-11-21 09:09:48,704 INFO L138 BoogieDeclarations]: Found implementation of procedure memory_access_ok [2022-11-21 09:09:48,704 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2022-11-21 09:09:48,704 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2022-11-21 09:09:48,704 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_add_used [2022-11-21 09:09:48,705 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_add_used [2022-11-21 09:09:48,705 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-21 09:09:48,705 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-21 09:09:48,705 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-11-21 09:09:48,705 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-11-21 09:09:48,705 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2022-11-21 09:09:48,705 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2022-11-21 09:09:48,705 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_vhost_drop_nodeacl [2022-11-21 09:09:48,706 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_vhost_drop_nodeacl [2022-11-21 09:09:48,706 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_poll_flush [2022-11-21 09:09:48,706 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_poll_flush [2022-11-21 09:09:48,706 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_scsi_release [2022-11-21 09:09:48,706 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_scsi_release [2022-11-21 09:09:48,706 INFO L130 BoogieDeclarations]: Found specification of procedure vhost_signal [2022-11-21 09:09:48,706 INFO L138 BoogieDeclarations]: Found implementation of procedure vhost_signal [2022-11-21 09:09:48,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 09:09:48,707 INFO L130 BoogieDeclarations]: Found specification of procedure sas_get_pr_transport_id_len [2022-11-21 09:09:48,708 INFO L138 BoogieDeclarations]: Found implementation of procedure sas_get_pr_transport_id_len [2022-11-21 09:09:48,712 INFO L130 BoogieDeclarations]: Found specification of procedure tcm_vhost_port_link [2022-11-21 09:09:48,712 INFO L138 BoogieDeclarations]: Found implementation of procedure tcm_vhost_port_link [2022-11-21 09:09:50,031 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 09:09:50,035 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 09:09:57,684 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L7455: assume #t~switch210;#res := ~ret~1; [2022-11-21 09:09:57,684 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L7455: assume !#t~switch210;#t~switch210 := #t~switch210 || 4 == ~size; [2022-11-21 09:09:57,685 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L7488: assume 0 != ~tmp___1~4;#res := ~ret~1; [2022-11-21 09:09:57,685 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L7488: assume !(0 != ~tmp___1~4);#res := ~ret~1; [2022-11-21 09:09:57,685 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L7449: havoc #t~switch210; [2022-11-21 09:09:57,685 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L7474: SUMMARY for call #t~ret211 := ldv__builtin_expect((if 0 != ~ret~1 then 1 else 0), 0); srcloc: null [2022-11-21 09:09:57,685 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L7470: assume #t~switch210; [2022-11-21 09:09:57,685 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L7470: assume !#t~switch210;#t~switch210 := #t~switch210 || 16 == ~size; [2022-11-21 09:09:57,685 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L7474-1: assume -9223372036854775808 <= #t~ret211 && #t~ret211 <= 9223372036854775807;~tmp___0~9 := #t~ret211;havoc #t~ret211; [2022-11-21 09:09:57,686 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1: assume #t~switch210;#res := ~ret~1; [2022-11-21 09:09:57,686 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L7497-1: ~tmp___2~3 := #t~ret213;havoc #t~ret213;#res := (if ~tmp___2~3 % 18446744073709551616 % 4294967296 <= 2147483647 then ~tmp___2~3 % 18446744073709551616 % 4294967296 else ~tmp___2~3 % 18446744073709551616 % 4294967296 - 4294967296); [2022-11-21 09:09:57,686 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L7497: SUMMARY for call #t~ret213 := copy_user_generic(~dst.base, ~dst.offset, ~src.base, ~src.offset, ~size); srcloc: null [2022-11-21 09:09:57,686 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2: assume !#t~switch210;#t~switch210 := #t~switch210 || 2 == ~size; [2022-11-21 09:09:57,686 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L7460: assume #t~switch210;#res := ~ret~1; [2022-11-21 09:09:57,686 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L7460: assume !#t~switch210;#t~switch210 := #t~switch210 || 8 == ~size; [2022-11-21 09:09:57,686 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L7487-1: assume -9223372036854775808 <= #t~ret212 && #t~ret212 <= 9223372036854775807;~tmp___1~4 := #t~ret212;havoc #t~ret212; [2022-11-21 09:09:57,686 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L7487: SUMMARY for call #t~ret212 := ldv__builtin_expect((if 0 != ~ret~1 then 1 else 0), 0); srcloc: null [2022-11-21 09:09:57,687 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L7483: assume #t~switch210; [2022-11-21 09:09:57,687 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L7483: assume !#t~switch210;#t~switch210 := true; [2022-11-21 09:09:57,687 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L7475: assume 0 != ~tmp___0~9;#res := ~ret~1; [2022-11-21 09:09:57,687 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L7475: assume !(0 != ~tmp___0~9);#res := ~ret~1; [2022-11-21 09:09:57,687 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L7496: assume #t~switch210; [2022-11-21 09:09:57,687 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L7496: assume !#t~switch210; [2022-11-21 09:09:57,687 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L7465: assume #t~switch210;#res := ~ret~1; [2022-11-21 09:09:57,687 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L7465: assume !#t~switch210;#t~switch210 := #t~switch210 || 10 == ~size; [2022-11-21 09:10:04,495 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 09:10:04,539 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 09:10:04,539 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-21 09:10:04,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:10:04 BoogieIcfgContainer [2022-11-21 09:10:04,546 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 09:10:04,549 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 09:10:04,549 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 09:10:04,553 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 09:10:04,553 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 09:09:41" (1/3) ... [2022-11-21 09:10:04,554 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42fcb130 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:10:04, skipping insertion in model container [2022-11-21 09:10:04,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:09:47" (2/3) ... [2022-11-21 09:10:04,555 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42fcb130 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:10:04, skipping insertion in model container [2022-11-21 09:10:04,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:10:04" (3/3) ... [2022-11-21 09:10:04,556 INFO L112 eAbstractionObserver]: Analyzing ICFG main0_drivers-vhost-tcm_vhost-ko--32_7a--linux-3.7.3.i [2022-11-21 09:10:04,579 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 09:10:04,580 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-21 09:10:04,733 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 09:10:04,741 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;@63787224, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 09:10:04,742 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-21 09:10:04,763 INFO L276 IsEmpty]: Start isEmpty. Operand has 2443 states, 1685 states have (on average 1.3483679525222552) internal successors, (2272), 1735 states have internal predecessors, (2272), 642 states have call successors, (642), 114 states have call predecessors, (642), 114 states have return successors, (642), 630 states have call predecessors, (642), 642 states have call successors, (642) [2022-11-21 09:10:04,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-21 09:10:04,773 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:10:04,774 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:10:04,775 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 09:10:04,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:10:04,785 INFO L85 PathProgramCache]: Analyzing trace with hash -1032870271, now seen corresponding path program 1 times [2022-11-21 09:10:04,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:10:04,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330603196] [2022-11-21 09:10:04,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:10:04,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:10:05,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:05,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-21 09:10:05,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:05,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:10:05,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:10:05,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330603196] [2022-11-21 09:10:05,664 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330603196] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:10:05,664 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:10:05,664 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 09:10:05,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357020631] [2022-11-21 09:10:05,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:10:05,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:10:05,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:10:05,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:10:05,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:10:05,748 INFO L87 Difference]: Start difference. First operand has 2443 states, 1685 states have (on average 1.3483679525222552) internal successors, (2272), 1735 states have internal predecessors, (2272), 642 states have call successors, (642), 114 states have call predecessors, (642), 114 states have return successors, (642), 630 states have call predecessors, (642), 642 states have call successors, (642) Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-21 09:10:06,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:10:06,252 INFO L93 Difference]: Finished difference Result 4865 states and 7184 transitions. [2022-11-21 09:10:06,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:10:06,255 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2022-11-21 09:10:06,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:10:06,306 INFO L225 Difference]: With dead ends: 4865 [2022-11-21 09:10:06,306 INFO L226 Difference]: Without dead ends: 2427 [2022-11-21 09:10:06,331 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:10:06,338 INFO L413 NwaCegarLoop]: 3538 mSDtfsCounter, 3529 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3529 SdHoareTripleChecker+Valid, 3538 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 09:10:06,340 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3529 Valid, 3538 Invalid, 2 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 09:10:06,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2427 states. [2022-11-21 09:10:06,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2427 to 2427. [2022-11-21 09:10:06,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2427 states, 1672 states have (on average 1.3433014354066986) internal successors, (2246), 1719 states have internal predecessors, (2246), 641 states have call successors, (641), 114 states have call predecessors, (641), 113 states have return successors, (630), 618 states have call predecessors, (630), 630 states have call successors, (630) [2022-11-21 09:10:06,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2427 states to 2427 states and 3517 transitions. [2022-11-21 09:10:06,673 INFO L78 Accepts]: Start accepts. Automaton has 2427 states and 3517 transitions. Word has length 15 [2022-11-21 09:10:06,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:10:06,675 INFO L495 AbstractCegarLoop]: Abstraction has 2427 states and 3517 transitions. [2022-11-21 09:10:06,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-21 09:10:06,676 INFO L276 IsEmpty]: Start isEmpty. Operand 2427 states and 3517 transitions. [2022-11-21 09:10:06,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-21 09:10:06,677 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:10:06,677 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:10:06,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 09:10:06,678 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 09:10:06,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:10:06,679 INFO L85 PathProgramCache]: Analyzing trace with hash -1955357502, now seen corresponding path program 1 times [2022-11-21 09:10:06,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:10:06,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082995580] [2022-11-21 09:10:06,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:10:06,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:10:06,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:07,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-21 09:10:07,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:07,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:10:07,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:10:07,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082995580] [2022-11-21 09:10:07,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082995580] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:10:07,123 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:10:07,124 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 09:10:07,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931785850] [2022-11-21 09:10:07,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:10:07,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:10:07,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:10:07,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:10:07,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:10:07,133 INFO L87 Difference]: Start difference. First operand 2427 states and 3517 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-21 09:10:07,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:10:07,373 INFO L93 Difference]: Finished difference Result 2429 states and 3518 transitions. [2022-11-21 09:10:07,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:10:07,374 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2022-11-21 09:10:07,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:10:07,391 INFO L225 Difference]: With dead ends: 2429 [2022-11-21 09:10:07,392 INFO L226 Difference]: Without dead ends: 2426 [2022-11-21 09:10:07,398 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:10:07,400 INFO L413 NwaCegarLoop]: 3514 mSDtfsCounter, 3504 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3504 SdHoareTripleChecker+Valid, 3514 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 09:10:07,400 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3504 Valid, 3514 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 09:10:07,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2426 states. [2022-11-21 09:10:07,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2426 to 2426. [2022-11-21 09:10:07,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2426 states, 1672 states have (on average 1.3427033492822966) internal successors, (2245), 1718 states have internal predecessors, (2245), 640 states have call successors, (640), 114 states have call predecessors, (640), 113 states have return successors, (630), 618 states have call predecessors, (630), 630 states have call successors, (630) [2022-11-21 09:10:07,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2426 states to 2426 states and 3515 transitions. [2022-11-21 09:10:07,592 INFO L78 Accepts]: Start accepts. Automaton has 2426 states and 3515 transitions. Word has length 16 [2022-11-21 09:10:07,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:10:07,593 INFO L495 AbstractCegarLoop]: Abstraction has 2426 states and 3515 transitions. [2022-11-21 09:10:07,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-21 09:10:07,593 INFO L276 IsEmpty]: Start isEmpty. Operand 2426 states and 3515 transitions. [2022-11-21 09:10:07,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-21 09:10:07,594 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:10:07,595 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:10:07,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 09:10:07,595 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 09:10:07,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:10:07,596 INFO L85 PathProgramCache]: Analyzing trace with hash -487685724, now seen corresponding path program 1 times [2022-11-21 09:10:07,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:10:07,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259317468] [2022-11-21 09:10:07,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:10:07,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:10:07,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:07,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-21 09:10:07,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:07,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:10:07,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:10:07,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259317468] [2022-11-21 09:10:07,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259317468] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:10:07,866 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:10:07,867 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 09:10:07,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567145396] [2022-11-21 09:10:07,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:10:07,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:10:07,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:10:07,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:10:07,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:10:07,869 INFO L87 Difference]: Start difference. First operand 2426 states and 3515 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-21 09:10:08,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:10:08,179 INFO L93 Difference]: Finished difference Result 2428 states and 3516 transitions. [2022-11-21 09:10:08,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:10:08,180 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2022-11-21 09:10:08,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:10:08,198 INFO L225 Difference]: With dead ends: 2428 [2022-11-21 09:10:08,198 INFO L226 Difference]: Without dead ends: 2425 [2022-11-21 09:10:08,203 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:10:08,209 INFO L413 NwaCegarLoop]: 3512 mSDtfsCounter, 3501 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3501 SdHoareTripleChecker+Valid, 3512 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 09:10:08,211 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3501 Valid, 3512 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 09:10:08,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2425 states. [2022-11-21 09:10:08,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2425 to 2425. [2022-11-21 09:10:08,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2425 states, 1672 states have (on average 1.3421052631578947) internal successors, (2244), 1717 states have internal predecessors, (2244), 639 states have call successors, (639), 114 states have call predecessors, (639), 113 states have return successors, (630), 618 states have call predecessors, (630), 630 states have call successors, (630) [2022-11-21 09:10:08,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2425 states to 2425 states and 3513 transitions. [2022-11-21 09:10:08,480 INFO L78 Accepts]: Start accepts. Automaton has 2425 states and 3513 transitions. Word has length 17 [2022-11-21 09:10:08,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:10:08,481 INFO L495 AbstractCegarLoop]: Abstraction has 2425 states and 3513 transitions. [2022-11-21 09:10:08,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-21 09:10:08,482 INFO L276 IsEmpty]: Start isEmpty. Operand 2425 states and 3513 transitions. [2022-11-21 09:10:08,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-21 09:10:08,484 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:10:08,485 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:10:08,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 09:10:08,486 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 09:10:08,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:10:08,486 INFO L85 PathProgramCache]: Analyzing trace with hash 2060471301, now seen corresponding path program 1 times [2022-11-21 09:10:08,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:10:08,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370001194] [2022-11-21 09:10:08,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:10:08,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:10:08,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:08,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-21 09:10:08,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:08,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:10:08,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:10:08,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370001194] [2022-11-21 09:10:08,814 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370001194] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:10:08,814 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:10:08,814 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 09:10:08,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663718436] [2022-11-21 09:10:08,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:10:08,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:10:08,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:10:08,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:10:08,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:10:08,816 INFO L87 Difference]: Start difference. First operand 2425 states and 3513 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-21 09:10:09,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:10:09,171 INFO L93 Difference]: Finished difference Result 5713 states and 8151 transitions. [2022-11-21 09:10:09,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:10:09,171 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2022-11-21 09:10:09,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:10:09,196 INFO L225 Difference]: With dead ends: 5713 [2022-11-21 09:10:09,196 INFO L226 Difference]: Without dead ends: 3327 [2022-11-21 09:10:09,209 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:10:09,211 INFO L413 NwaCegarLoop]: 3815 mSDtfsCounter, 1910 mSDsluCounter, 2757 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1910 SdHoareTripleChecker+Valid, 6572 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 09:10:09,211 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1910 Valid, 6572 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 09:10:09,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3327 states. [2022-11-21 09:10:09,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3327 to 3320. [2022-11-21 09:10:09,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3320 states, 2284 states have (on average 1.317863397548161) internal successors, (3010), 2351 states have internal predecessors, (3010), 838 states have call successors, (838), 200 states have call predecessors, (838), 197 states have return successors, (832), 806 states have call predecessors, (832), 826 states have call successors, (832) [2022-11-21 09:10:09,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3320 states to 3320 states and 4680 transitions. [2022-11-21 09:10:09,524 INFO L78 Accepts]: Start accepts. Automaton has 3320 states and 4680 transitions. Word has length 18 [2022-11-21 09:10:09,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:10:09,525 INFO L495 AbstractCegarLoop]: Abstraction has 3320 states and 4680 transitions. [2022-11-21 09:10:09,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-21 09:10:09,525 INFO L276 IsEmpty]: Start isEmpty. Operand 3320 states and 4680 transitions. [2022-11-21 09:10:09,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-21 09:10:09,529 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:10:09,530 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:10:09,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 09:10:09,530 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 09:10:09,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:10:09,531 INFO L85 PathProgramCache]: Analyzing trace with hash -551034681, now seen corresponding path program 1 times [2022-11-21 09:10:09,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:10:09,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534547780] [2022-11-21 09:10:09,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:10:09,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:10:09,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:09,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-21 09:10:09,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:09,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:10:09,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:10:09,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534547780] [2022-11-21 09:10:09,815 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534547780] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:10:09,816 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:10:09,816 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 09:10:09,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963296232] [2022-11-21 09:10:09,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:10:09,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:10:09,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:10:09,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:10:09,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:10:09,819 INFO L87 Difference]: Start difference. First operand 3320 states and 4680 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-21 09:10:10,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:10:10,115 INFO L93 Difference]: Finished difference Result 3355 states and 4707 transitions. [2022-11-21 09:10:10,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:10:10,116 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19 [2022-11-21 09:10:10,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:10:10,139 INFO L225 Difference]: With dead ends: 3355 [2022-11-21 09:10:10,139 INFO L226 Difference]: Without dead ends: 3351 [2022-11-21 09:10:10,143 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:10:10,144 INFO L413 NwaCegarLoop]: 3507 mSDtfsCounter, 3427 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3427 SdHoareTripleChecker+Valid, 3591 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 09:10:10,144 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3427 Valid, 3591 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 09:10:10,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3351 states. [2022-11-21 09:10:10,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3351 to 3347. [2022-11-21 09:10:10,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3347 states, 2305 states have (on average 1.314533622559653) internal successors, (3030), 2370 states have internal predecessors, (3030), 836 states have call successors, (836), 208 states have call predecessors, (836), 205 states have return successors, (832), 806 states have call predecessors, (832), 826 states have call successors, (832) [2022-11-21 09:10:10,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3347 states to 3347 states and 4698 transitions. [2022-11-21 09:10:10,468 INFO L78 Accepts]: Start accepts. Automaton has 3347 states and 4698 transitions. Word has length 19 [2022-11-21 09:10:10,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:10:10,468 INFO L495 AbstractCegarLoop]: Abstraction has 3347 states and 4698 transitions. [2022-11-21 09:10:10,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-21 09:10:10,470 INFO L276 IsEmpty]: Start isEmpty. Operand 3347 states and 4698 transitions. [2022-11-21 09:10:10,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-21 09:10:10,471 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:10:10,471 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:10:10,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-21 09:10:10,472 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 09:10:10,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:10:10,473 INFO L85 PathProgramCache]: Analyzing trace with hash 96663368, now seen corresponding path program 1 times [2022-11-21 09:10:10,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:10:10,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587425828] [2022-11-21 09:10:10,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:10:10,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:10:10,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:10,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-21 09:10:10,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:10,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:10:10,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:10:10,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587425828] [2022-11-21 09:10:10,727 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587425828] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:10:10,727 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:10:10,727 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 09:10:10,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922808520] [2022-11-21 09:10:10,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:10:10,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 09:10:10,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:10:10,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:10:10,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:10:10,730 INFO L87 Difference]: Start difference. First operand 3347 states and 4698 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-21 09:10:11,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:10:11,038 INFO L93 Difference]: Finished difference Result 3381 states and 4732 transitions. [2022-11-21 09:10:11,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:10:11,039 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2022-11-21 09:10:11,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:10:11,062 INFO L225 Difference]: With dead ends: 3381 [2022-11-21 09:10:11,062 INFO L226 Difference]: Without dead ends: 3357 [2022-11-21 09:10:11,066 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:10:11,070 INFO L413 NwaCegarLoop]: 3505 mSDtfsCounter, 3413 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3413 SdHoareTripleChecker+Valid, 3593 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 09:10:11,071 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3413 Valid, 3593 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 09:10:11,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3357 states. [2022-11-21 09:10:11,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3357 to 3355. [2022-11-21 09:10:11,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3355 states, 2313 states have (on average 1.3134457414613057) internal successors, (3038), 2376 states have internal predecessors, (3038), 830 states have call successors, (830), 214 states have call predecessors, (830), 211 states have return successors, (828), 802 states have call predecessors, (828), 822 states have call successors, (828) [2022-11-21 09:10:11,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3355 states to 3355 states and 4696 transitions. [2022-11-21 09:10:11,453 INFO L78 Accepts]: Start accepts. Automaton has 3355 states and 4696 transitions. Word has length 20 [2022-11-21 09:10:11,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:10:11,454 INFO L495 AbstractCegarLoop]: Abstraction has 3355 states and 4696 transitions. [2022-11-21 09:10:11,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-21 09:10:11,454 INFO L276 IsEmpty]: Start isEmpty. Operand 3355 states and 4696 transitions. [2022-11-21 09:10:11,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-11-21 09:10:11,460 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:10:11,460 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:10:11,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-21 09:10:11,460 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 09:10:11,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:10:11,461 INFO L85 PathProgramCache]: Analyzing trace with hash 122306097, now seen corresponding path program 1 times [2022-11-21 09:10:11,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:10:11,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893237480] [2022-11-21 09:10:11,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:10:11,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:10:11,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:11,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-21 09:10:11,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:11,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-21 09:10:11,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:11,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-21 09:10:11,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:11,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-21 09:10:11,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:11,957 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-21 09:10:11,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:10:11,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893237480] [2022-11-21 09:10:11,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893237480] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:10:11,958 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:10:11,958 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 09:10:11,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722472855] [2022-11-21 09:10:11,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:10:11,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 09:10:11,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:10:11,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 09:10:11,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 09:10:11,960 INFO L87 Difference]: Start difference. First operand 3355 states and 4696 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-21 09:10:15,524 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 09:10:21,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:10:21,555 INFO L93 Difference]: Finished difference Result 5215 states and 7221 transitions. [2022-11-21 09:10:21,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 09:10:21,556 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 50 [2022-11-21 09:10:21,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:10:21,586 INFO L225 Difference]: With dead ends: 5215 [2022-11-21 09:10:21,587 INFO L226 Difference]: Without dead ends: 2665 [2022-11-21 09:10:21,603 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-21 09:10:21,605 INFO L413 NwaCegarLoop]: 1921 mSDtfsCounter, 2447 mSDsluCounter, 1902 mSDsCounter, 0 mSdLazyCounter, 3012 mSolverCounterSat, 781 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2814 SdHoareTripleChecker+Valid, 3823 SdHoareTripleChecker+Invalid, 3794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 781 IncrementalHoareTripleChecker+Valid, 3012 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2022-11-21 09:10:21,605 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2814 Valid, 3823 Invalid, 3794 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [781 Valid, 3012 Invalid, 1 Unknown, 0 Unchecked, 9.0s Time] [2022-11-21 09:10:21,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2665 states. [2022-11-21 09:10:21,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2665 to 2543. [2022-11-21 09:10:21,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2543 states, 1752 states have (on average 1.303082191780822) internal successors, (2283), 1792 states have internal predecessors, (2283), 622 states have call successors, (622), 170 states have call predecessors, (622), 168 states have return successors, (615), 603 states have call predecessors, (615), 615 states have call successors, (615) [2022-11-21 09:10:21,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2543 states to 2543 states and 3520 transitions. [2022-11-21 09:10:21,850 INFO L78 Accepts]: Start accepts. Automaton has 2543 states and 3520 transitions. Word has length 50 [2022-11-21 09:10:21,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:10:21,853 INFO L495 AbstractCegarLoop]: Abstraction has 2543 states and 3520 transitions. [2022-11-21 09:10:21,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-21 09:10:21,853 INFO L276 IsEmpty]: Start isEmpty. Operand 2543 states and 3520 transitions. [2022-11-21 09:10:21,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-21 09:10:21,861 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:10:21,861 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-21 09:10:21,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-21 09:10:21,862 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 09:10:21,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:10:21,862 INFO L85 PathProgramCache]: Analyzing trace with hash 2028719357, now seen corresponding path program 1 times [2022-11-21 09:10:21,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:10:21,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242288895] [2022-11-21 09:10:21,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:10:21,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:10:21,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:22,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-21 09:10:22,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:22,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-21 09:10:22,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:22,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-21 09:10:22,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:22,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-21 09:10:22,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:22,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-21 09:10:22,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:22,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-11-21 09:10:22,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:22,185 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-21 09:10:22,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:10:22,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242288895] [2022-11-21 09:10:22,186 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242288895] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:10:22,186 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:10:22,186 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 09:10:22,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145537996] [2022-11-21 09:10:22,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:10:22,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 09:10:22,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:10:22,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 09:10:22,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 09:10:22,188 INFO L87 Difference]: Start difference. First operand 2543 states and 3520 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-21 09:10:25,477 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 09:10:30,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:10:30,359 INFO L93 Difference]: Finished difference Result 5195 states and 7230 transitions. [2022-11-21 09:10:30,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 09:10:30,360 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 66 [2022-11-21 09:10:30,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:10:30,381 INFO L225 Difference]: With dead ends: 5195 [2022-11-21 09:10:30,381 INFO L226 Difference]: Without dead ends: 2665 [2022-11-21 09:10:30,394 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-21 09:10:30,396 INFO L413 NwaCegarLoop]: 2104 mSDtfsCounter, 1133 mSDsluCounter, 2942 mSDsCounter, 0 mSdLazyCounter, 2931 mSolverCounterSat, 452 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1367 SdHoareTripleChecker+Valid, 5046 SdHoareTripleChecker+Invalid, 3384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 452 IncrementalHoareTripleChecker+Valid, 2931 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-11-21 09:10:30,396 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1367 Valid, 5046 Invalid, 3384 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [452 Valid, 2931 Invalid, 1 Unknown, 0 Unchecked, 7.7s Time] [2022-11-21 09:10:30,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2665 states. [2022-11-21 09:10:30,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2665 to 2543. [2022-11-21 09:10:30,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2543 states, 1752 states have (on average 1.2996575342465753) internal successors, (2277), 1792 states have internal predecessors, (2277), 622 states have call successors, (622), 170 states have call predecessors, (622), 168 states have return successors, (615), 603 states have call predecessors, (615), 615 states have call successors, (615) [2022-11-21 09:10:30,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2543 states to 2543 states and 3514 transitions. [2022-11-21 09:10:30,662 INFO L78 Accepts]: Start accepts. Automaton has 2543 states and 3514 transitions. Word has length 66 [2022-11-21 09:10:30,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:10:30,663 INFO L495 AbstractCegarLoop]: Abstraction has 2543 states and 3514 transitions. [2022-11-21 09:10:30,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-21 09:10:30,663 INFO L276 IsEmpty]: Start isEmpty. Operand 2543 states and 3514 transitions. [2022-11-21 09:10:30,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-11-21 09:10:30,670 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:10:30,671 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-21 09:10:30,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-21 09:10:30,671 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 09:10:30,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:10:30,672 INFO L85 PathProgramCache]: Analyzing trace with hash -565713710, now seen corresponding path program 1 times [2022-11-21 09:10:30,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:10:30,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510593427] [2022-11-21 09:10:30,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:10:30,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:10:30,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:30,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-21 09:10:30,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:30,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-21 09:10:30,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:30,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-21 09:10:31,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:31,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-21 09:10:31,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:31,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-21 09:10:31,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:31,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-21 09:10:31,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:31,047 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-21 09:10:31,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:10:31,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510593427] [2022-11-21 09:10:31,048 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510593427] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:10:31,048 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:10:31,049 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 09:10:31,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593337759] [2022-11-21 09:10:31,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:10:31,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 09:10:31,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:10:31,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 09:10:31,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 09:10:31,053 INFO L87 Difference]: Start difference. First operand 2543 states and 3514 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-21 09:10:34,531 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 09:10:39,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:10:39,582 INFO L93 Difference]: Finished difference Result 5152 states and 7140 transitions. [2022-11-21 09:10:39,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 09:10:39,582 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), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 69 [2022-11-21 09:10:39,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:10:39,601 INFO L225 Difference]: With dead ends: 5152 [2022-11-21 09:10:39,601 INFO L226 Difference]: Without dead ends: 2663 [2022-11-21 09:10:39,611 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 09:10:39,612 INFO L413 NwaCegarLoop]: 2098 mSDtfsCounter, 1133 mSDsluCounter, 2923 mSDsCounter, 0 mSdLazyCounter, 2945 mSolverCounterSat, 452 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1367 SdHoareTripleChecker+Valid, 5021 SdHoareTripleChecker+Invalid, 3398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 452 IncrementalHoareTripleChecker+Valid, 2945 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-11-21 09:10:39,612 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1367 Valid, 5021 Invalid, 3398 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [452 Valid, 2945 Invalid, 1 Unknown, 0 Unchecked, 8.1s Time] [2022-11-21 09:10:39,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2663 states. [2022-11-21 09:10:39,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2663 to 2543. [2022-11-21 09:10:39,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2543 states, 1752 states have (on average 1.297945205479452) internal successors, (2274), 1792 states have internal predecessors, (2274), 622 states have call successors, (622), 170 states have call predecessors, (622), 168 states have return successors, (615), 603 states have call predecessors, (615), 615 states have call successors, (615) [2022-11-21 09:10:39,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2543 states to 2543 states and 3511 transitions. [2022-11-21 09:10:39,845 INFO L78 Accepts]: Start accepts. Automaton has 2543 states and 3511 transitions. Word has length 69 [2022-11-21 09:10:39,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:10:39,846 INFO L495 AbstractCegarLoop]: Abstraction has 2543 states and 3511 transitions. [2022-11-21 09:10:39,846 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), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-21 09:10:39,846 INFO L276 IsEmpty]: Start isEmpty. Operand 2543 states and 3511 transitions. [2022-11-21 09:10:39,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-21 09:10:39,852 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:10:39,852 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-21 09:10:39,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-21 09:10:39,852 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 09:10:39,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:10:39,853 INFO L85 PathProgramCache]: Analyzing trace with hash -339779727, now seen corresponding path program 1 times [2022-11-21 09:10:39,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:10:39,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751728560] [2022-11-21 09:10:39,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:10:39,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:10:39,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:40,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-21 09:10:40,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:40,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-21 09:10:40,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:40,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-21 09:10:40,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:40,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-11-21 09:10:40,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:40,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-21 09:10:40,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:40,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-11-21 09:10:40,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:40,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-21 09:10:40,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:40,400 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-21 09:10:40,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:10:40,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751728560] [2022-11-21 09:10:40,400 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751728560] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:10:40,401 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:10:40,401 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 09:10:40,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799537422] [2022-11-21 09:10:40,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:10:40,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 09:10:40,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:10:40,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 09:10:40,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 09:10:40,403 INFO L87 Difference]: Start difference. First operand 2543 states and 3511 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-21 09:10:44,533 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 09:10:49,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:10:49,157 INFO L93 Difference]: Finished difference Result 5420 states and 7558 transitions. [2022-11-21 09:10:49,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 09:10:49,158 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 75 [2022-11-21 09:10:49,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:10:49,200 INFO L225 Difference]: With dead ends: 5420 [2022-11-21 09:10:49,209 INFO L226 Difference]: Without dead ends: 2931 [2022-11-21 09:10:49,219 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 09:10:49,222 INFO L413 NwaCegarLoop]: 1969 mSDtfsCounter, 2146 mSDsluCounter, 2119 mSDsCounter, 0 mSdLazyCounter, 3070 mSolverCounterSat, 537 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2679 SdHoareTripleChecker+Valid, 4088 SdHoareTripleChecker+Invalid, 3608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 537 IncrementalHoareTripleChecker+Valid, 3070 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2022-11-21 09:10:49,224 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2679 Valid, 4088 Invalid, 3608 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [537 Valid, 3070 Invalid, 1 Unknown, 0 Unchecked, 8.3s Time] [2022-11-21 09:10:49,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2931 states. [2022-11-21 09:10:49,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2931 to 2814. [2022-11-21 09:10:49,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2814 states, 1935 states have (on average 1.3049095607235142) internal successors, (2525), 1982 states have internal predecessors, (2525), 710 states have call successors, (710), 170 states have call predecessors, (710), 168 states have return successors, (703), 685 states have call predecessors, (703), 703 states have call successors, (703) [2022-11-21 09:10:49,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2814 states to 2814 states and 3938 transitions. [2022-11-21 09:10:49,636 INFO L78 Accepts]: Start accepts. Automaton has 2814 states and 3938 transitions. Word has length 75 [2022-11-21 09:10:49,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:10:49,636 INFO L495 AbstractCegarLoop]: Abstraction has 2814 states and 3938 transitions. [2022-11-21 09:10:49,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-21 09:10:49,637 INFO L276 IsEmpty]: Start isEmpty. Operand 2814 states and 3938 transitions. [2022-11-21 09:10:49,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-11-21 09:10:49,643 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:10:49,643 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-21 09:10:49,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-21 09:10:49,644 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 09:10:49,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:10:49,645 INFO L85 PathProgramCache]: Analyzing trace with hash -2140783982, now seen corresponding path program 1 times [2022-11-21 09:10:49,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:10:49,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417224829] [2022-11-21 09:10:49,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:10:49,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:10:49,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:50,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-21 09:10:50,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:50,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-21 09:10:50,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:50,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-21 09:10:50,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:50,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:10:50,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:50,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-21 09:10:50,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:50,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-21 09:10:50,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:50,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-21 09:10:50,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:50,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-21 09:10:50,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:50,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-21 09:10:50,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:10:50,314 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-21 09:10:50,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:10:50,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417224829] [2022-11-21 09:10:50,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417224829] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:10:50,315 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:10:50,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-21 09:10:50,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087496484] [2022-11-21 09:10:50,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:10:50,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 09:10:50,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:10:50,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 09:10:50,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-21 09:10:50,318 INFO L87 Difference]: Start difference. First operand 2814 states and 3938 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-21 09:10:55,317 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 09:11:01,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:11:01,427 INFO L93 Difference]: Finished difference Result 5697 states and 7991 transitions. [2022-11-21 09:11:01,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 09:11:01,428 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 81 [2022-11-21 09:11:01,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:11:01,444 INFO L225 Difference]: With dead ends: 5697 [2022-11-21 09:11:01,444 INFO L226 Difference]: Without dead ends: 2934 [2022-11-21 09:11:01,455 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-21 09:11:01,455 INFO L413 NwaCegarLoop]: 2099 mSDtfsCounter, 1138 mSDsluCounter, 6433 mSDsCounter, 0 mSdLazyCounter, 5864 mSolverCounterSat, 448 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1372 SdHoareTripleChecker+Valid, 8532 SdHoareTripleChecker+Invalid, 6313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 448 IncrementalHoareTripleChecker+Valid, 5864 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2022-11-21 09:11:01,456 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1372 Valid, 8532 Invalid, 6313 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [448 Valid, 5864 Invalid, 1 Unknown, 0 Unchecked, 10.6s Time] [2022-11-21 09:11:01,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2934 states. [2022-11-21 09:11:01,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2934 to 2814. [2022-11-21 09:11:01,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2814 states, 1935 states have (on average 1.304392764857881) internal successors, (2524), 1981 states have internal predecessors, (2524), 710 states have call successors, (710), 170 states have call predecessors, (710), 168 states have return successors, (703), 685 states have call predecessors, (703), 703 states have call successors, (703) [2022-11-21 09:11:01,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2814 states to 2814 states and 3937 transitions. [2022-11-21 09:11:01,726 INFO L78 Accepts]: Start accepts. Automaton has 2814 states and 3937 transitions. Word has length 81 [2022-11-21 09:11:01,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:11:01,728 INFO L495 AbstractCegarLoop]: Abstraction has 2814 states and 3937 transitions. [2022-11-21 09:11:01,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-21 09:11:01,728 INFO L276 IsEmpty]: Start isEmpty. Operand 2814 states and 3937 transitions. [2022-11-21 09:11:01,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-11-21 09:11:01,738 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:11:01,738 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-21 09:11:01,738 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-21 09:11:01,738 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 09:11:01,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:11:01,739 INFO L85 PathProgramCache]: Analyzing trace with hash -652603746, now seen corresponding path program 1 times [2022-11-21 09:11:01,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:11:01,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309232604] [2022-11-21 09:11:01,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:11:01,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:11:01,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:02,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-21 09:11:02,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:02,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-21 09:11:02,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:02,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-21 09:11:02,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:02,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-11-21 09:11:02,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:02,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:11:02,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:02,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-21 09:11:02,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:02,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-21 09:11:02,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:02,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-21 09:11:02,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:02,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-21 09:11:02,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:02,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-11-21 09:11:02,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:02,586 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-21 09:11:02,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:11:02,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309232604] [2022-11-21 09:11:02,587 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309232604] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:11:02,587 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:11:02,588 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-21 09:11:02,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429528686] [2022-11-21 09:11:02,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:11:02,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 09:11:02,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:11:02,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 09:11:02,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-21 09:11:02,590 INFO L87 Difference]: Start difference. First operand 2814 states and 3937 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-11-21 09:11:07,448 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 09:11:13,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:11:13,358 INFO L93 Difference]: Finished difference Result 5696 states and 7989 transitions. [2022-11-21 09:11:13,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 09:11:13,359 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 88 [2022-11-21 09:11:13,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:11:13,376 INFO L225 Difference]: With dead ends: 5696 [2022-11-21 09:11:13,376 INFO L226 Difference]: Without dead ends: 2923 [2022-11-21 09:11:13,388 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-21 09:11:13,389 INFO L413 NwaCegarLoop]: 2098 mSDtfsCounter, 1139 mSDsluCounter, 6429 mSDsCounter, 0 mSdLazyCounter, 5858 mSolverCounterSat, 450 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1374 SdHoareTripleChecker+Valid, 8527 SdHoareTripleChecker+Invalid, 6309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 450 IncrementalHoareTripleChecker+Valid, 5858 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2022-11-21 09:11:13,390 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1374 Valid, 8527 Invalid, 6309 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [450 Valid, 5858 Invalid, 1 Unknown, 0 Unchecked, 10.3s Time] [2022-11-21 09:11:13,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2923 states. [2022-11-21 09:11:13,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2923 to 2803. [2022-11-21 09:11:13,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2803 states, 1928 states have (on average 1.304460580912863) internal successors, (2515), 1974 states have internal predecessors, (2515), 708 states have call successors, (708), 168 states have call predecessors, (708), 166 states have return successors, (701), 683 states have call predecessors, (701), 701 states have call successors, (701) [2022-11-21 09:11:13,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2803 states to 2803 states and 3924 transitions. [2022-11-21 09:11:13,653 INFO L78 Accepts]: Start accepts. Automaton has 2803 states and 3924 transitions. Word has length 88 [2022-11-21 09:11:13,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:11:13,653 INFO L495 AbstractCegarLoop]: Abstraction has 2803 states and 3924 transitions. [2022-11-21 09:11:13,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-11-21 09:11:13,654 INFO L276 IsEmpty]: Start isEmpty. Operand 2803 states and 3924 transitions. [2022-11-21 09:11:13,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-11-21 09:11:13,662 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:11:13,663 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2022-11-21 09:11:13,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-21 09:11:13,663 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 09:11:13,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:11:13,664 INFO L85 PathProgramCache]: Analyzing trace with hash 1341490305, now seen corresponding path program 1 times [2022-11-21 09:11:13,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:11:13,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713832793] [2022-11-21 09:11:13,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:11:13,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:11:13,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:14,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-21 09:11:14,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:14,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-21 09:11:14,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:14,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-21 09:11:14,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:14,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-21 09:11:14,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:14,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:11:14,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:14,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-21 09:11:14,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:14,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-21 09:11:14,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:14,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:11:14,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:14,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-21 09:11:14,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:14,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-21 09:11:14,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:14,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-21 09:11:14,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:14,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-21 09:11:14,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:14,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-11-21 09:11:14,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:14,486 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-21 09:11:14,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:11:14,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713832793] [2022-11-21 09:11:14,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713832793] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:11:14,487 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:11:14,487 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-21 09:11:14,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715748558] [2022-11-21 09:11:14,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:11:14,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 09:11:14,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:11:14,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 09:11:14,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-21 09:11:14,490 INFO L87 Difference]: Start difference. First operand 2803 states and 3924 transitions. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-21 09:11:19,456 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 09:11:26,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:11:26,799 INFO L93 Difference]: Finished difference Result 5808 states and 8173 transitions. [2022-11-21 09:11:26,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-21 09:11:26,800 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 112 [2022-11-21 09:11:26,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:11:26,810 INFO L225 Difference]: With dead ends: 5808 [2022-11-21 09:11:26,811 INFO L226 Difference]: Without dead ends: 3044 [2022-11-21 09:11:26,820 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-21 09:11:26,821 INFO L413 NwaCegarLoop]: 2043 mSDtfsCounter, 1719 mSDsluCounter, 5652 mSDsCounter, 0 mSdLazyCounter, 5578 mSolverCounterSat, 1400 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1867 SdHoareTripleChecker+Valid, 7695 SdHoareTripleChecker+Invalid, 6979 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1400 IncrementalHoareTripleChecker+Valid, 5578 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.8s IncrementalHoareTripleChecker+Time [2022-11-21 09:11:26,821 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1867 Valid, 7695 Invalid, 6979 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1400 Valid, 5578 Invalid, 1 Unknown, 0 Unchecked, 11.8s Time] [2022-11-21 09:11:26,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3044 states. [2022-11-21 09:11:27,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3044 to 2803. [2022-11-21 09:11:27,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2803 states, 1928 states have (on average 1.303941908713693) internal successors, (2514), 1974 states have internal predecessors, (2514), 708 states have call successors, (708), 168 states have call predecessors, (708), 166 states have return successors, (701), 683 states have call predecessors, (701), 701 states have call successors, (701) [2022-11-21 09:11:27,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2803 states to 2803 states and 3923 transitions. [2022-11-21 09:11:27,095 INFO L78 Accepts]: Start accepts. Automaton has 2803 states and 3923 transitions. Word has length 112 [2022-11-21 09:11:27,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:11:27,096 INFO L495 AbstractCegarLoop]: Abstraction has 2803 states and 3923 transitions. [2022-11-21 09:11:27,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-21 09:11:27,096 INFO L276 IsEmpty]: Start isEmpty. Operand 2803 states and 3923 transitions. [2022-11-21 09:11:27,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-11-21 09:11:27,102 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:11:27,102 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:11:27,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-21 09:11:27,103 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 09:11:27,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:11:27,103 INFO L85 PathProgramCache]: Analyzing trace with hash -822439966, now seen corresponding path program 1 times [2022-11-21 09:11:27,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:11:27,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347180387] [2022-11-21 09:11:27,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:11:27,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:11:28,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:29,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-21 09:11:29,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:29,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-21 09:11:29,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:29,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-21 09:11:29,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:29,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-21 09:11:29,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:29,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:11:29,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:30,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-21 09:11:30,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:30,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-21 09:11:30,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:30,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-21 09:11:30,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:30,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:11:30,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:30,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-21 09:11:30,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:30,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-21 09:11:30,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:30,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-21 09:11:30,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:30,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-21 09:11:30,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:30,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-21 09:11:30,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:30,148 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-21 09:11:30,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:11:30,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347180387] [2022-11-21 09:11:30,148 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347180387] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 09:11:30,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1088162177] [2022-11-21 09:11:30,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:11:30,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 09:11:30,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64ea10b8-5b10-4f43-8fa2-c8c34f487951/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:11:30,155 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64ea10b8-5b10-4f43-8fa2-c8c34f487951/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 09:11:30,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64ea10b8-5b10-4f43-8fa2-c8c34f487951/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-21 09:11:31,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:31,756 INFO L263 TraceCheckSpWp]: Trace formula consists of 2834 conjuncts, 43 conjunts are in the unsatisfiable core [2022-11-21 09:11:31,775 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:11:32,209 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-21 09:11:32,210 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 09:11:32,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1088162177] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:11:32,210 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 09:11:32,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [14] total 16 [2022-11-21 09:11:32,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334400481] [2022-11-21 09:11:32,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:11:32,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-21 09:11:32,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:11:32,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-21 09:11:32,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=209, Unknown=0, NotChecked=0, Total=240 [2022-11-21 09:11:32,213 INFO L87 Difference]: Start difference. First operand 2803 states and 3923 transitions. Second operand has 12 states, 10 states have (on average 8.2) internal successors, (82), 9 states have internal predecessors, (82), 4 states have call successors, (18), 2 states have call predecessors, (18), 5 states have return successors, (14), 5 states have call predecessors, (14), 4 states have call successors, (14) [2022-11-21 09:11:34,579 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 09:11:36,589 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 09:11:39,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:11:39,440 INFO L93 Difference]: Finished difference Result 6135 states and 8702 transitions. [2022-11-21 09:11:39,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-21 09:11:39,441 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 8.2) internal successors, (82), 9 states have internal predecessors, (82), 4 states have call successors, (18), 2 states have call predecessors, (18), 5 states have return successors, (14), 5 states have call predecessors, (14), 4 states have call successors, (14) Word has length 115 [2022-11-21 09:11:39,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:11:39,458 INFO L225 Difference]: With dead ends: 6135 [2022-11-21 09:11:39,459 INFO L226 Difference]: Without dead ends: 3366 [2022-11-21 09:11:39,468 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 136 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=57, Invalid=363, Unknown=0, NotChecked=0, Total=420 [2022-11-21 09:11:39,469 INFO L413 NwaCegarLoop]: 3442 mSDtfsCounter, 272 mSDsluCounter, 33924 mSDsCounter, 0 mSdLazyCounter, 1507 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 369 SdHoareTripleChecker+Valid, 37366 SdHoareTripleChecker+Invalid, 1512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1507 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-11-21 09:11:39,470 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [369 Valid, 37366 Invalid, 1512 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 1507 Invalid, 2 Unknown, 0 Unchecked, 6.5s Time] [2022-11-21 09:11:39,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3366 states. [2022-11-21 09:11:39,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3366 to 2810. [2022-11-21 09:11:39,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2810 states, 1933 states have (on average 1.3031557165028453) internal successors, (2519), 1979 states have internal predecessors, (2519), 709 states have call successors, (709), 168 states have call predecessors, (709), 167 states have return successors, (711), 685 states have call predecessors, (711), 702 states have call successors, (711) [2022-11-21 09:11:39,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2810 states to 2810 states and 3939 transitions. [2022-11-21 09:11:39,751 INFO L78 Accepts]: Start accepts. Automaton has 2810 states and 3939 transitions. Word has length 115 [2022-11-21 09:11:39,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:11:39,753 INFO L495 AbstractCegarLoop]: Abstraction has 2810 states and 3939 transitions. [2022-11-21 09:11:39,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 8.2) internal successors, (82), 9 states have internal predecessors, (82), 4 states have call successors, (18), 2 states have call predecessors, (18), 5 states have return successors, (14), 5 states have call predecessors, (14), 4 states have call successors, (14) [2022-11-21 09:11:39,754 INFO L276 IsEmpty]: Start isEmpty. Operand 2810 states and 3939 transitions. [2022-11-21 09:11:39,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-11-21 09:11:39,759 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:11:39,759 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:11:39,781 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64ea10b8-5b10-4f43-8fa2-c8c34f487951/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-21 09:11:39,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64ea10b8-5b10-4f43-8fa2-c8c34f487951/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-21 09:11:39,976 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 09:11:39,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:11:39,977 INFO L85 PathProgramCache]: Analyzing trace with hash 1745804100, now seen corresponding path program 1 times [2022-11-21 09:11:39,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:11:39,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805078388] [2022-11-21 09:11:39,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:11:39,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:11:40,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:44,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-21 09:11:44,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:44,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-21 09:11:44,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:44,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-21 09:11:44,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:44,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-21 09:11:44,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:45,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:11:45,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:45,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-21 09:11:45,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:45,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-11-21 09:11:45,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:45,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-11-21 09:11:45,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:45,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:11:45,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:45,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-21 09:11:45,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:45,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-21 09:11:45,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:45,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-21 09:11:45,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:45,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-21 09:11:45,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:45,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-21 09:11:45,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:45,584 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-21 09:11:45,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:11:45,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805078388] [2022-11-21 09:11:45,585 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805078388] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 09:11:45,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [516526971] [2022-11-21 09:11:45,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:11:45,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 09:11:45,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64ea10b8-5b10-4f43-8fa2-c8c34f487951/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:11:45,588 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64ea10b8-5b10-4f43-8fa2-c8c34f487951/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 09:11:45,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64ea10b8-5b10-4f43-8fa2-c8c34f487951/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-21 09:11:47,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:11:47,952 INFO L263 TraceCheckSpWp]: Trace formula consists of 2834 conjuncts, 78 conjunts are in the unsatisfiable core [2022-11-21 09:11:47,960 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:11:56,424 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-21 09:11:56,424 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 09:11:56,425 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [516526971] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:11:56,425 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 09:11:56,425 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [20] total 35 [2022-11-21 09:11:56,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285671836] [2022-11-21 09:11:56,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:11:56,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-21 09:11:56,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:11:56,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-21 09:11:56,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=1095, Unknown=1, NotChecked=0, Total=1190 [2022-11-21 09:11:56,427 INFO L87 Difference]: Start difference. First operand 2810 states and 3939 transitions. Second operand has 20 states, 17 states have (on average 4.823529411764706) internal successors, (82), 16 states have internal predecessors, (82), 5 states have call successors, (18), 2 states have call predecessors, (18), 6 states have return successors, (14), 6 states have call predecessors, (14), 5 states have call successors, (14) [2022-11-21 09:11:59,679 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 09:12:01,688 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 09:12:03,844 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 09:12:05,853 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 09:12:07,862 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 09:12:09,869 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 09:12:11,873 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 09:12:13,883 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 09:12:15,898 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 09:12:17,907 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 09:12:19,913 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 09:12:21,920 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-21 09:12:23,927 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 09:12:25,937 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 09:12:27,942 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 09:12:29,947 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 09:12:31,955 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-21 09:12:38,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:12:38,207 INFO L93 Difference]: Finished difference Result 6138 states and 8713 transitions. [2022-11-21 09:12:38,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-21 09:12:38,208 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 17 states have (on average 4.823529411764706) internal successors, (82), 16 states have internal predecessors, (82), 5 states have call successors, (18), 2 states have call predecessors, (18), 6 states have return successors, (14), 6 states have call predecessors, (14), 5 states have call successors, (14) Word has length 115 [2022-11-21 09:12:38,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:12:38,220 INFO L225 Difference]: With dead ends: 6138 [2022-11-21 09:12:38,221 INFO L226 Difference]: Without dead ends: 3367 [2022-11-21 09:12:38,230 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 123 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 374 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=214, Invalid=1947, Unknown=1, NotChecked=0, Total=2162 [2022-11-21 09:12:38,231 INFO L413 NwaCegarLoop]: 3416 mSDtfsCounter, 559 mSDsluCounter, 54072 mSDsCounter, 0 mSdLazyCounter, 2671 mSolverCounterSat, 191 mSolverCounterUnsat, 17 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 560 SdHoareTripleChecker+Valid, 57488 SdHoareTripleChecker+Invalid, 2879 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 191 IncrementalHoareTripleChecker+Valid, 2671 IncrementalHoareTripleChecker+Invalid, 17 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.6s IncrementalHoareTripleChecker+Time [2022-11-21 09:12:38,231 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [560 Valid, 57488 Invalid, 2879 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [191 Valid, 2671 Invalid, 17 Unknown, 0 Unchecked, 39.6s Time] [2022-11-21 09:12:38,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3367 states. [2022-11-21 09:12:38,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3367 to 2798. [2022-11-21 09:12:38,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2798 states, 1925 states have (on average 1.3038961038961039) internal successors, (2510), 1971 states have internal predecessors, (2510), 707 states have call successors, (707), 167 states have call predecessors, (707), 165 states have return successors, (700), 682 states have call predecessors, (700), 700 states have call successors, (700) [2022-11-21 09:12:38,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2798 states to 2798 states and 3917 transitions. [2022-11-21 09:12:38,533 INFO L78 Accepts]: Start accepts. Automaton has 2798 states and 3917 transitions. Word has length 115 [2022-11-21 09:12:38,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:12:38,534 INFO L495 AbstractCegarLoop]: Abstraction has 2798 states and 3917 transitions. [2022-11-21 09:12:38,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 17 states have (on average 4.823529411764706) internal successors, (82), 16 states have internal predecessors, (82), 5 states have call successors, (18), 2 states have call predecessors, (18), 6 states have return successors, (14), 6 states have call predecessors, (14), 5 states have call successors, (14) [2022-11-21 09:12:38,534 INFO L276 IsEmpty]: Start isEmpty. Operand 2798 states and 3917 transitions. [2022-11-21 09:12:38,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-11-21 09:12:38,539 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:12:38,539 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2022-11-21 09:12:38,561 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64ea10b8-5b10-4f43-8fa2-c8c34f487951/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-21 09:12:38,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64ea10b8-5b10-4f43-8fa2-c8c34f487951/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-21 09:12:38,752 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 09:12:38,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:12:38,753 INFO L85 PathProgramCache]: Analyzing trace with hash -1744797610, now seen corresponding path program 1 times [2022-11-21 09:12:38,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:12:38,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461978368] [2022-11-21 09:12:38,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:12:38,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:12:38,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:40,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-21 09:12:40,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:40,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-21 09:12:40,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:40,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-21 09:12:40,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:40,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-21 09:12:40,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:40,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:12:40,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:40,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-21 09:12:40,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:40,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-21 09:12:40,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:40,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-21 09:12:40,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:40,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-21 09:12:40,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:40,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-21 09:12:40,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:40,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-21 09:12:40,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:40,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-21 09:12:40,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:40,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-21 09:12:40,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:40,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-21 09:12:40,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:40,413 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-21 09:12:40,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:12:40,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461978368] [2022-11-21 09:12:40,414 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461978368] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 09:12:40,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [89792738] [2022-11-21 09:12:40,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:12:40,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 09:12:40,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64ea10b8-5b10-4f43-8fa2-c8c34f487951/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:12:40,416 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64ea10b8-5b10-4f43-8fa2-c8c34f487951/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 09:12:40,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64ea10b8-5b10-4f43-8fa2-c8c34f487951/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-21 09:12:42,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:12:42,241 INFO L263 TraceCheckSpWp]: Trace formula consists of 3293 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-21 09:12:42,254 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 09:12:42,305 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-21 09:12:42,305 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 09:12:42,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [89792738] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:12:42,306 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 09:12:42,306 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 8 [2022-11-21 09:12:42,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937405997] [2022-11-21 09:12:42,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:12:42,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 09:12:42,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:12:42,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 09:12:42,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-21 09:12:42,308 INFO L87 Difference]: Start difference. First operand 2798 states and 3917 transitions. Second operand has 6 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-21 09:12:43,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:12:43,736 INFO L93 Difference]: Finished difference Result 5563 states and 7792 transitions. [2022-11-21 09:12:43,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 09:12:43,737 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 116 [2022-11-21 09:12:43,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 09:12:43,747 INFO L225 Difference]: With dead ends: 5563 [2022-11-21 09:12:43,747 INFO L226 Difference]: Without dead ends: 2798 [2022-11-21 09:12:43,754 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-21 09:12:43,754 INFO L413 NwaCegarLoop]: 3050 mSDtfsCounter, 263 mSDsluCounter, 11727 mSDsCounter, 0 mSdLazyCounter, 677 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 14777 SdHoareTripleChecker+Invalid, 677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 677 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-21 09:12:43,755 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [356 Valid, 14777 Invalid, 677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 677 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-21 09:12:43,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2798 states. [2022-11-21 09:12:44,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2798 to 2798. [2022-11-21 09:12:44,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2798 states, 1925 states have (on average 1.3033766233766233) internal successors, (2509), 1971 states have internal predecessors, (2509), 707 states have call successors, (707), 167 states have call predecessors, (707), 165 states have return successors, (700), 682 states have call predecessors, (700), 700 states have call successors, (700) [2022-11-21 09:12:44,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2798 states to 2798 states and 3916 transitions. [2022-11-21 09:12:44,042 INFO L78 Accepts]: Start accepts. Automaton has 2798 states and 3916 transitions. Word has length 116 [2022-11-21 09:12:44,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 09:12:44,043 INFO L495 AbstractCegarLoop]: Abstraction has 2798 states and 3916 transitions. [2022-11-21 09:12:44,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-21 09:12:44,043 INFO L276 IsEmpty]: Start isEmpty. Operand 2798 states and 3916 transitions. [2022-11-21 09:12:44,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-11-21 09:12:44,048 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 09:12:44,049 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2022-11-21 09:12:44,077 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64ea10b8-5b10-4f43-8fa2-c8c34f487951/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-21 09:12:44,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64ea10b8-5b10-4f43-8fa2-c8c34f487951/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 09:12:44,272 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 09:12:44,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:12:44,272 INFO L85 PathProgramCache]: Analyzing trace with hash 639127128, now seen corresponding path program 1 times [2022-11-21 09:12:44,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:12:44,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546600662] [2022-11-21 09:12:44,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:12:44,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:12:46,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 09:12:46,271 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 09:12:47,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 09:12:47,412 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 09:12:47,413 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-21 09:12:47,414 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-21 09:12:47,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-21 09:12:47,420 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:12:47,424 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 09:12:47,605 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 09:12:47 BoogieIcfgContainer [2022-11-21 09:12:47,608 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 09:12:47,609 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 09:12:47,609 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 09:12:47,609 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 09:12:47,610 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:10:04" (3/4) ... [2022-11-21 09:12:47,613 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-21 09:12:47,613 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 09:12:47,616 INFO L158 Benchmark]: Toolchain (without parser) took 185676.31ms. Allocated memory was 199.2MB in the beginning and 950.0MB in the end (delta: 750.8MB). Free memory was 147.9MB in the beginning and 597.0MB in the end (delta: -449.1MB). Peak memory consumption was 302.7MB. Max. memory is 16.1GB. [2022-11-21 09:12:47,616 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 134.2MB. Free memory was 76.7MB in the beginning and 76.6MB in the end (delta: 117.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 09:12:47,617 INFO L158 Benchmark]: CACSL2BoogieTranslator took 5634.58ms. Allocated memory was 199.2MB in the beginning and 278.9MB in the end (delta: 79.7MB). Free memory was 147.9MB in the beginning and 147.2MB in the end (delta: 702.1kB). Peak memory consumption was 141.1MB. Max. memory is 16.1GB. [2022-11-21 09:12:47,617 INFO L158 Benchmark]: Boogie Procedure Inliner took 522.34ms. Allocated memory is still 278.9MB. Free memory was 147.2MB in the beginning and 169.1MB in the end (delta: -21.9MB). Peak memory consumption was 48.3MB. Max. memory is 16.1GB. [2022-11-21 09:12:47,617 INFO L158 Benchmark]: Boogie Preprocessor took 450.42ms. Allocated memory is still 278.9MB. Free memory was 169.1MB in the beginning and 117.8MB in the end (delta: 51.4MB). Peak memory consumption was 52.4MB. Max. memory is 16.1GB. [2022-11-21 09:12:47,618 INFO L158 Benchmark]: RCFGBuilder took 15988.21ms. Allocated memory was 278.9MB in the beginning and 503.3MB in the end (delta: 224.4MB). Free memory was 117.8MB in the beginning and 344.5MB in the end (delta: -226.8MB). Peak memory consumption was 234.4MB. Max. memory is 16.1GB. [2022-11-21 09:12:47,618 INFO L158 Benchmark]: TraceAbstraction took 163059.78ms. Allocated memory was 503.3MB in the beginning and 950.0MB in the end (delta: 446.7MB). Free memory was 344.5MB in the beginning and 597.0MB in the end (delta: -252.5MB). Peak memory consumption was 569.6MB. Max. memory is 16.1GB. [2022-11-21 09:12:47,618 INFO L158 Benchmark]: Witness Printer took 4.48ms. Allocated memory is still 950.0MB. Free memory is still 597.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 09:12:47,620 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 134.2MB. Free memory was 76.7MB in the beginning and 76.6MB in the end (delta: 117.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 5634.58ms. Allocated memory was 199.2MB in the beginning and 278.9MB in the end (delta: 79.7MB). Free memory was 147.9MB in the beginning and 147.2MB in the end (delta: 702.1kB). Peak memory consumption was 141.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 522.34ms. Allocated memory is still 278.9MB. Free memory was 147.2MB in the beginning and 169.1MB in the end (delta: -21.9MB). Peak memory consumption was 48.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 450.42ms. Allocated memory is still 278.9MB. Free memory was 169.1MB in the beginning and 117.8MB in the end (delta: 51.4MB). Peak memory consumption was 52.4MB. Max. memory is 16.1GB. * RCFGBuilder took 15988.21ms. Allocated memory was 278.9MB in the beginning and 503.3MB in the end (delta: 224.4MB). Free memory was 117.8MB in the beginning and 344.5MB in the end (delta: -226.8MB). Peak memory consumption was 234.4MB. Max. memory is 16.1GB. * TraceAbstraction took 163059.78ms. Allocated memory was 503.3MB in the beginning and 950.0MB in the end (delta: 446.7MB). Free memory was 344.5MB in the beginning and 597.0MB in the end (delta: -252.5MB). Peak memory consumption was 569.6MB. Max. memory is 16.1GB. * Witness Printer took 4.48ms. Allocated memory is still 950.0MB. Free memory is still 597.0MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 13668]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of __builtin_object_size at line 7404, overapproximation of large string literal at line 12798, overapproximation of bitwiseAnd at line 12077. Possible FailurePath: [L7687] static unsigned int vhost_zcopy_mask ; [L10792] static struct target_fabric_configfs *tcm_vhost_fabric_configfs ; [L10793] static struct workqueue_struct *tcm_vhost_workqueue ; [L10794-L10797] static struct mutex tcm_vhost_mutex = {{1}, {{{{{0U}}, 3735899821U, 4294967295U, 0xffffffffffffffffUL, {0, {0, 0}, "tcm_vhost_mutex.wait_lock", 0, 0UL}}}}, {& tcm_vhost_mutex.wait_list, & tcm_vhost_mutex.wait_list}, 0, 0, (void *)(& tcm_vhost_mutex), {0, {0, 0}, "tcm_vhost_mutex", 0, 0UL}}; [L10798] static struct list_head tcm_vhost_list = {& tcm_vhost_list, & tcm_vhost_list}; [L12183-L12186] static struct file_operations const vhost_scsi_fops = {& __this_module, & noop_llseek, 0, 0, 0, 0, 0, 0, & vhost_scsi_ioctl, & vhost_scsi_compat_ioctl, 0, & vhost_scsi_open, 0, & vhost_scsi_release, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; [L12187-L12188] static struct miscdevice vhost_scsi_misc = {255, "vhost-scsi", & vhost_scsi_fops, {0, 0}, 0, 0, 0, (unsigned short)0}; [L12540] static struct target_fabric_tpg_attribute tcm_vhost_tpg_nexus = {{"nexus", & __this_module, 420U}, & tcm_vhost_tpg_show_nexus, & tcm_vhost_tpg_store_nexus}; [L12541] static struct configfs_attribute *tcm_vhost_tpg_attrs[2U] = { & tcm_vhost_tpg_nexus.attr, 0}; [L12732] static struct target_fabric_wwn_attribute tcm_vhost_wwn_version = {{"version", & __this_module, 292U}, & tcm_vhost_wwn_show_attr_version, 0}; [L12733] static struct configfs_attribute *tcm_vhost_wwn_attrs[2U] = { & tcm_vhost_wwn_version.attr, 0}; [L12734-L12745] static struct target_core_fabric_ops tcm_vhost_ops = {0, & tcm_vhost_get_fabric_name, & tcm_vhost_get_fabric_proto_ident, & tcm_vhost_get_fabric_wwn, & tcm_vhost_get_tag, & tcm_vhost_get_default_depth, & tcm_vhost_get_pr_transport_id, & tcm_vhost_get_pr_transport_id_len, & tcm_vhost_parse_pr_out_transport_id, & tcm_vhost_check_true, & tcm_vhost_check_true, & tcm_vhost_check_false, & tcm_vhost_check_false, 0, & tcm_vhost_alloc_fabric_acl, & tcm_vhost_release_fabric_acl, & tcm_vhost_tpg_get_inst_index, 0, & tcm_vhost_release_cmd, 0, & tcm_vhost_shutdown_session, & tcm_vhost_close_session, & tcm_vhost_sess_get_index, 0, & tcm_vhost_write_pending, & tcm_vhost_write_pending_status, & tcm_vhost_set_default_node_attrs, & tcm_vhost_get_task_tag, & tcm_vhost_get_cmd_state, & tcm_vhost_queue_data_in, & tcm_vhost_queue_status, & tcm_vhost_queue_tm_rsp, & tcm_vhost_make_tport, & tcm_vhost_drop_tport, & tcm_vhost_make_tpg, & tcm_vhost_drop_tpg, & tcm_vhost_port_link, & tcm_vhost_port_unlink, 0, 0, & tcm_vhost_make_nodeacl, & tcm_vhost_drop_nodeacl}; [L12885] int LDV_IN_INTERRUPT ; [L13678] static int ldv_mutex_cred_guard_mutex ; [L13785] static int ldv_mutex_lock ; [L13892] static int ldv_mutex_mtx ; [L13999] static int ldv_mutex_mutex ; [L14106] static int ldv_mutex_tcm_vhost_mutex ; [L14213] static int ldv_mutex_tv_tpg_mutex ; VAL [__this_module={36893488147419103251:36893488147419103238}, LDV_IN_INTERRUPT=0, ldv_mutex_cred_guard_mutex=0, ldv_mutex_lock=0, ldv_mutex_mtx=0, ldv_mutex_mutex=0, ldv_mutex_tcm_vhost_mutex=0, ldv_mutex_tv_tpg_mutex=0, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={354:0}, tcm_vhost_mutex={353:0}, tcm_vhost_ops={361:0}, tcm_vhost_tpg_attrs={358:0}, tcm_vhost_tpg_nexus={357:0}, tcm_vhost_workqueue={0:0}, tcm_vhost_wwn_attrs={360:0}, tcm_vhost_wwn_version={359:0}, vhost_scsi_fops={355:0}, vhost_scsi_misc={356:0}, vhost_zcopy_mask=0] [L12888] struct inode *var_group1 ; [L12889] struct file *var_group2 ; [L12890] unsigned int var_vhost_scsi_ioctl_44_p1 ; [L12891] unsigned long var_vhost_scsi_ioctl_44_p2 ; [L12892] unsigned int var_vhost_scsi_compat_ioctl_45_p1 ; [L12893] unsigned long var_vhost_scsi_compat_ioctl_45_p2 ; [L12894] int res_vhost_scsi_open_39 ; [L12895] struct se_portal_group *var_group3 ; [L12896] struct se_node_acl *var_group4 ; [L12897] struct t10_pr_registration *var_tcm_vhost_get_pr_transport_id_7_p2 ; [L12898] int *var_tcm_vhost_get_pr_transport_id_7_p3 ; [L12899] unsigned char *var_tcm_vhost_get_pr_transport_id_7_p4 ; [L12900] struct t10_pr_registration *var_tcm_vhost_get_pr_transport_id_len_8_p2 ; [L12901] int *var_tcm_vhost_get_pr_transport_id_len_8_p3 ; [L12902] char const *var_tcm_vhost_parse_pr_out_transport_id_9_p1 ; [L12903] u32 *var_tcm_vhost_parse_pr_out_transport_id_9_p2 ; [L12904] char **var_tcm_vhost_parse_pr_out_transport_id_9_p3 ; [L12905] struct se_cmd *var_group5 ; [L12906] struct se_session *var_group6 ; [L12907] struct target_fabric_configfs *var_group7 ; [L12908] struct config_group *var_group8 ; [L12909] char const *var_tcm_vhost_make_tport_59_p2 ; [L12910] struct se_wwn *var_group9 ; [L12911] char const *var_tcm_vhost_make_tpg_57_p2 ; [L12912] struct se_lun *var_group10 ; [L12913] char const *var_tcm_vhost_make_nodeacl_51_p2 ; [L12914] int ldv_s_vhost_scsi_fops_file_operations ; [L12915] int tmp ; [L12916] int tmp___0 ; [L12917] int tmp___1 ; [L12919] ldv_s_vhost_scsi_fops_file_operations = 0 [L12920] LDV_IN_INTERRUPT = 1 [L12921] CALL ldv_initialize() [L14323] ldv_mutex_cred_guard_mutex = 1 [L14324] ldv_mutex_lock = 1 [L14325] ldv_mutex_mtx = 1 [L14326] ldv_mutex_mutex = 1 [L14327] ldv_mutex_tcm_vhost_mutex = 1 [L14328] ldv_mutex_tv_tpg_mutex = 1 VAL [__this_module={36893488147419103251:36893488147419103238}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={354:0}, tcm_vhost_mutex={353:0}, tcm_vhost_ops={361:0}, tcm_vhost_tpg_attrs={358:0}, tcm_vhost_tpg_nexus={357:0}, tcm_vhost_workqueue={0:0}, tcm_vhost_wwn_attrs={360:0}, tcm_vhost_wwn_version={359:0}, vhost_scsi_fops={355:0}, vhost_scsi_misc={356:0}, vhost_zcopy_mask=0] [L12921] RET ldv_initialize() [L12922] FCALL ldv_handler_precall() VAL [__this_module={36893488147419103251:36893488147419103238}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, ldv_s_vhost_scsi_fops_file_operations=0, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={354:0}, tcm_vhost_mutex={353:0}, tcm_vhost_ops={361:0}, tcm_vhost_tpg_attrs={358:0}, tcm_vhost_tpg_nexus={357:0}, tcm_vhost_workqueue={0:0}, tcm_vhost_wwn_attrs={360:0}, tcm_vhost_wwn_version={359:0}, vhost_scsi_fops={355:0}, vhost_scsi_misc={356:0}, vhost_zcopy_mask=0] [L12923] CALL, EXPR tcm_vhost_init() [L12839] int ret ; [L12840] struct lock_class_key __key ; [L12841] char const *__lock_name ; [L12842] struct workqueue_struct *tmp ; [L12844] ret = -12 [L12845] __lock_name = "tcm_vhost" [L12846] tmp = __alloc_workqueue_key("tcm_vhost", 0U, 0, & __key, __lock_name) [L12847] tcm_vhost_workqueue = tmp VAL [__alloc_workqueue_key("tcm_vhost", 0U, 0, & __key, __lock_name)={363:-362}, __key={366:0}, __lock_name={351:0}, __this_module={36893488147419103251:36893488147419103238}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, ret=-12, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={354:0}, tcm_vhost_mutex={353:0}, tcm_vhost_ops={361:0}, tcm_vhost_tpg_attrs={358:0}, tcm_vhost_tpg_nexus={357:0}, tcm_vhost_workqueue={363:-362}, tcm_vhost_wwn_attrs={360:0}, tcm_vhost_wwn_version={359:0}, tmp={363:-362}, vhost_scsi_fops={355:0}, vhost_scsi_misc={356:0}, vhost_zcopy_mask=0] [L12848] COND FALSE !((unsigned long )tcm_vhost_workqueue == (unsigned long )((struct workqueue_struct *)0)) [L12852] CALL, EXPR vhost_scsi_register() [L12191] int tmp ; [L12193] CALL, EXPR misc_register(& vhost_scsi_misc) [L14561] return __VERIFIER_nondet_int(); [L12193] RET, EXPR misc_register(& vhost_scsi_misc) [L12193] tmp = misc_register(& vhost_scsi_misc) [L12194] return (tmp); VAL [\result=0, __this_module={36893488147419103251:36893488147419103238}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={354:0}, tcm_vhost_mutex={353:0}, tcm_vhost_ops={361:0}, tcm_vhost_tpg_attrs={358:0}, tcm_vhost_tpg_nexus={357:0}, tcm_vhost_workqueue={363:-362}, tcm_vhost_wwn_attrs={360:0}, tcm_vhost_wwn_version={359:0}, tmp=0, vhost_scsi_fops={355:0}, vhost_scsi_misc={356:0}, vhost_zcopy_mask=0] [L12852] RET, EXPR vhost_scsi_register() [L12852] ret = vhost_scsi_register() [L12853] COND FALSE !(ret < 0) [L12857] CALL, EXPR tcm_vhost_register_configfs() [L12748] struct target_fabric_configfs *fabric ; [L12749] int ret ; [L12750] struct _ddebug descriptor ; [L12751] struct new_utsname *tmp ; [L12752] struct new_utsname *tmp___0 ; [L12753] long tmp___1 ; [L12754] long tmp___2 ; [L12755] long tmp___3 ; [L12756] struct _ddebug descriptor___0 ; [L12757] long tmp___4 ; [L12759] descriptor.modname = "tcm_vhost" [L12760] descriptor.function = "tcm_vhost_register_configfs" [L12761] descriptor.filename = "/work/vladimir/UFO/Work/test/work/current--X--drivers/vhost/tcm_vhost.ko--X--defaultlinux-3.7.3--X--32_7a--X--ufo/linux-3.7.3/csd_deg_dscv/12/dscv_tempdir/dscv/ri/32_7a/drivers/vhost/tcm_vhost.c.prepared" [L12762] descriptor.format = "TCM_VHOST fabric module %s on %s/%s on 3.7.3\n" [L12763] descriptor.lineno = 1561U [L12764] descriptor.flags = 0U [L12765] EXPR descriptor.flags VAL [__this_module={36893488147419103251:36893488147419103238}, descriptor={365:0}, descriptor.flags=0, descriptor___0={369:0}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={354:0}, tcm_vhost_mutex={353:0}, tcm_vhost_ops={361:0}, tcm_vhost_tpg_attrs={358:0}, tcm_vhost_tpg_nexus={357:0}, tcm_vhost_workqueue={363:-362}, tcm_vhost_wwn_attrs={360:0}, tcm_vhost_wwn_version={359:0}, vhost_scsi_fops={355:0}, vhost_scsi_misc={356:0}, vhost_zcopy_mask=0] [L12765] CALL, EXPR ldv__builtin_expect((long )descriptor.flags & 1L, 0L) VAL [\old(c)=0, \old(exp)=0, __this_module={36893488147419103251:36893488147419103238}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={354:0}, tcm_vhost_mutex={353:0}, tcm_vhost_ops={361:0}, tcm_vhost_tpg_attrs={358:0}, tcm_vhost_tpg_nexus={357:0}, tcm_vhost_workqueue={363:-362}, tcm_vhost_wwn_attrs={360:0}, tcm_vhost_wwn_version={359:0}, vhost_scsi_fops={355:0}, vhost_scsi_misc={356:0}, vhost_zcopy_mask=0] [L13675] return (exp); VAL [\old(c)=0, \old(exp)=0, \result=0, __this_module={36893488147419103251:36893488147419103238}, c=0, exp=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={354:0}, tcm_vhost_mutex={353:0}, tcm_vhost_ops={361:0}, tcm_vhost_tpg_attrs={358:0}, tcm_vhost_tpg_nexus={357:0}, tcm_vhost_workqueue={363:-362}, tcm_vhost_wwn_attrs={360:0}, tcm_vhost_wwn_version={359:0}, vhost_scsi_fops={355:0}, vhost_scsi_misc={356:0}, vhost_zcopy_mask=0] [L12765] RET, EXPR ldv__builtin_expect((long )descriptor.flags & 1L, 0L) VAL [__this_module={36893488147419103251:36893488147419103238}, descriptor={365:0}, descriptor.flags=0, descriptor___0={369:0}, ldv__builtin_expect((long )descriptor.flags & 1L, 0L)=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={354:0}, tcm_vhost_mutex={353:0}, tcm_vhost_ops={361:0}, tcm_vhost_tpg_attrs={358:0}, tcm_vhost_tpg_nexus={357:0}, tcm_vhost_workqueue={363:-362}, tcm_vhost_wwn_attrs={360:0}, tcm_vhost_wwn_version={359:0}, vhost_scsi_fops={355:0}, vhost_scsi_misc={356:0}, vhost_zcopy_mask=0] [L12765] tmp___1 = ldv__builtin_expect((long )descriptor.flags & 1L, 0L) [L12766] COND FALSE !(tmp___1 != 0L) VAL [__this_module={36893488147419103251:36893488147419103238}, descriptor={365:0}, descriptor___0={369:0}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={354:0}, tcm_vhost_mutex={353:0}, tcm_vhost_ops={361:0}, tcm_vhost_tpg_attrs={358:0}, tcm_vhost_tpg_nexus={357:0}, tcm_vhost_workqueue={363:-362}, tcm_vhost_wwn_attrs={360:0}, tcm_vhost_wwn_version={359:0}, tmp___1=0, vhost_scsi_fops={355:0}, vhost_scsi_misc={356:0}, vhost_zcopy_mask=0] [L12773] CALL, EXPR target_fabric_configfs_init(& __this_module, "vhost") [L14636] CALL, EXPR ldv_malloc(sizeof(struct target_fabric_configfs)) VAL [__this_module={36893488147419103251:36893488147419103238}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={354:0}, tcm_vhost_mutex={353:0}, tcm_vhost_ops={361:0}, tcm_vhost_tpg_attrs={358:0}, tcm_vhost_tpg_nexus={357:0}, tcm_vhost_workqueue={363:-362}, tcm_vhost_wwn_attrs={360:0}, tcm_vhost_wwn_version={359:0}, vhost_scsi_fops={355:0}, vhost_scsi_misc={356:0}, vhost_zcopy_mask=0] [L7220] COND FALSE !(__VERIFIER_nondet_int()) [L7225] return ((void *)0); VAL [\old(size)=1300, \result={0:0}, __this_module={36893488147419103251:36893488147419103238}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, size=1300, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={354:0}, tcm_vhost_mutex={353:0}, tcm_vhost_ops={361:0}, tcm_vhost_tpg_attrs={358:0}, tcm_vhost_tpg_nexus={357:0}, tcm_vhost_workqueue={363:-362}, tcm_vhost_wwn_attrs={360:0}, tcm_vhost_wwn_version={359:0}, vhost_scsi_fops={355:0}, vhost_scsi_misc={356:0}, vhost_zcopy_mask=0] [L14636] RET, EXPR ldv_malloc(sizeof(struct target_fabric_configfs)) VAL [__this_module={36893488147419103251:36893488147419103238}, arg0={36893488147419103251:36893488147419103238}, arg0={36893488147419103251:36893488147419103238}, arg1={338:0}, arg1={338:0}, LDV_IN_INTERRUPT=1, ldv_malloc(sizeof(struct target_fabric_configfs))={0:0}, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={354:0}, tcm_vhost_mutex={353:0}, tcm_vhost_ops={361:0}, tcm_vhost_tpg_attrs={358:0}, tcm_vhost_tpg_nexus={357:0}, tcm_vhost_workqueue={363:-362}, tcm_vhost_wwn_attrs={360:0}, tcm_vhost_wwn_version={359:0}, vhost_scsi_fops={355:0}, vhost_scsi_misc={356:0}, vhost_zcopy_mask=0] [L14636] return ldv_malloc(sizeof(struct target_fabric_configfs)); [L12773] RET, EXPR target_fabric_configfs_init(& __this_module, "vhost") [L12773] fabric = target_fabric_configfs_init(& __this_module, "vhost") [L12774] CALL, EXPR IS_ERR((void const *)fabric) VAL [__this_module={36893488147419103251:36893488147419103238}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, ptr={0:0}, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={354:0}, tcm_vhost_mutex={353:0}, tcm_vhost_ops={361:0}, tcm_vhost_tpg_attrs={358:0}, tcm_vhost_tpg_nexus={357:0}, tcm_vhost_workqueue={363:-362}, tcm_vhost_wwn_attrs={360:0}, tcm_vhost_wwn_version={359:0}, vhost_scsi_fops={355:0}, vhost_scsi_misc={356:0}, vhost_zcopy_mask=0] [L6795] long tmp ; VAL [__this_module={36893488147419103251:36893488147419103238}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, ptr={0:0}, ptr={0:0}, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={354:0}, tcm_vhost_mutex={353:0}, tcm_vhost_ops={361:0}, tcm_vhost_tpg_attrs={358:0}, tcm_vhost_tpg_nexus={357:0}, tcm_vhost_workqueue={363:-362}, tcm_vhost_wwn_attrs={360:0}, tcm_vhost_wwn_version={359:0}, vhost_scsi_fops={355:0}, vhost_scsi_misc={356:0}, vhost_zcopy_mask=0] [L6797] CALL, EXPR ldv__builtin_expect((unsigned long )ptr > 0xfffffffffffff000UL, 0L) VAL [\old(c)=0, \old(exp)=0, __this_module={36893488147419103251:36893488147419103238}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={354:0}, tcm_vhost_mutex={353:0}, tcm_vhost_ops={361:0}, tcm_vhost_tpg_attrs={358:0}, tcm_vhost_tpg_nexus={357:0}, tcm_vhost_workqueue={363:-362}, tcm_vhost_wwn_attrs={360:0}, tcm_vhost_wwn_version={359:0}, vhost_scsi_fops={355:0}, vhost_scsi_misc={356:0}, vhost_zcopy_mask=0] [L13675] return (exp); VAL [\old(c)=0, \old(exp)=0, \result=0, __this_module={36893488147419103251:36893488147419103238}, c=0, exp=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={354:0}, tcm_vhost_mutex={353:0}, tcm_vhost_ops={361:0}, tcm_vhost_tpg_attrs={358:0}, tcm_vhost_tpg_nexus={357:0}, tcm_vhost_workqueue={363:-362}, tcm_vhost_wwn_attrs={360:0}, tcm_vhost_wwn_version={359:0}, vhost_scsi_fops={355:0}, vhost_scsi_misc={356:0}, vhost_zcopy_mask=0] [L6797] RET, EXPR ldv__builtin_expect((unsigned long )ptr > 0xfffffffffffff000UL, 0L) VAL [__this_module={36893488147419103251:36893488147419103238}, ldv__builtin_expect((unsigned long )ptr > 0xfffffffffffff000UL, 0L)=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, ptr={0:0}, ptr={0:0}, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={354:0}, tcm_vhost_mutex={353:0}, tcm_vhost_ops={361:0}, tcm_vhost_tpg_attrs={358:0}, tcm_vhost_tpg_nexus={357:0}, tcm_vhost_workqueue={363:-362}, tcm_vhost_wwn_attrs={360:0}, tcm_vhost_wwn_version={359:0}, vhost_scsi_fops={355:0}, vhost_scsi_misc={356:0}, vhost_zcopy_mask=0] [L6797] tmp = ldv__builtin_expect((unsigned long )ptr > 0xfffffffffffff000UL, 0L) [L6798] return (tmp); VAL [\result=0, __this_module={36893488147419103251:36893488147419103238}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, ptr={0:0}, ptr={0:0}, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={354:0}, tcm_vhost_mutex={353:0}, tcm_vhost_ops={361:0}, tcm_vhost_tpg_attrs={358:0}, tcm_vhost_tpg_nexus={357:0}, tcm_vhost_workqueue={363:-362}, tcm_vhost_wwn_attrs={360:0}, tcm_vhost_wwn_version={359:0}, tmp=0, vhost_scsi_fops={355:0}, vhost_scsi_misc={356:0}, vhost_zcopy_mask=0] [L12774] RET, EXPR IS_ERR((void const *)fabric) VAL [__this_module={36893488147419103251:36893488147419103238}, descriptor={365:0}, descriptor___0={369:0}, fabric={0:0}, IS_ERR((void const *)fabric)=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={354:0}, tcm_vhost_mutex={353:0}, tcm_vhost_ops={361:0}, tcm_vhost_tpg_attrs={358:0}, tcm_vhost_tpg_nexus={357:0}, tcm_vhost_workqueue={363:-362}, tcm_vhost_wwn_attrs={360:0}, tcm_vhost_wwn_version={359:0}, tmp___1=0, vhost_scsi_fops={355:0}, vhost_scsi_misc={356:0}, vhost_zcopy_mask=0] [L12774] tmp___3 = IS_ERR((void const *)fabric) [L12775] COND FALSE !(tmp___3 != 0L) [L12781] fabric->tf_ops = tcm_vhost_ops [L12782] fabric->tf_cit_tmpl.tfc_wwn_cit.ct_attrs = (struct configfs_attribute **)(& tcm_vhost_wwn_attrs) [L12783] fabric->tf_cit_tmpl.tfc_tpg_base_cit.ct_attrs = (struct configfs_attribute **)(& tcm_vhost_tpg_attrs) [L12784] fabric->tf_cit_tmpl.tfc_tpg_attrib_cit.ct_attrs = 0 [L12785] fabric->tf_cit_tmpl.tfc_tpg_param_cit.ct_attrs = 0 [L12786] fabric->tf_cit_tmpl.tfc_tpg_np_base_cit.ct_attrs = 0 [L12787] fabric->tf_cit_tmpl.tfc_tpg_nacl_base_cit.ct_attrs = 0 [L12788] fabric->tf_cit_tmpl.tfc_tpg_nacl_attrib_cit.ct_attrs = 0 [L12789] fabric->tf_cit_tmpl.tfc_tpg_nacl_auth_cit.ct_attrs = 0 [L12790] fabric->tf_cit_tmpl.tfc_tpg_nacl_param_cit.ct_attrs = 0 [L12791] CALL, EXPR target_fabric_configfs_register(fabric) [L14640] return __VERIFIER_nondet_int(); [L12791] RET, EXPR target_fabric_configfs_register(fabric) [L12791] ret = target_fabric_configfs_register(fabric) [L12792] COND FALSE !(ret < 0) [L12797] tcm_vhost_fabric_configfs = fabric [L12798] descriptor___0.modname = "tcm_vhost" [L12799] descriptor___0.function = "tcm_vhost_register_configfs" [L12800] descriptor___0.filename = "/work/vladimir/UFO/Work/test/work/current--X--drivers/vhost/tcm_vhost.ko--X--defaultlinux-3.7.3--X--32_7a--X--ufo/linux-3.7.3/csd_deg_dscv/12/dscv_tempdir/dscv/ri/32_7a/drivers/vhost/tcm_vhost.c.prepared" [L12801] descriptor___0.format = "TCM_VHOST[0] - Set fabric -> tcm_vhost_fabric_configfs\n" [L12802] descriptor___0.lineno = 1599U [L12803] descriptor___0.flags = 0U [L12804] EXPR descriptor___0.flags VAL [__this_module={36893488147419103251:36893488147419103238}, descriptor={365:0}, descriptor___0={369:0}, descriptor___0.flags=0, fabric={0:0}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, ret=0, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={354:0}, tcm_vhost_mutex={353:0}, tcm_vhost_ops={361:0}, tcm_vhost_tpg_attrs={358:0}, tcm_vhost_tpg_nexus={357:0}, tcm_vhost_workqueue={363:-362}, tcm_vhost_wwn_attrs={360:0}, tcm_vhost_wwn_version={359:0}, tmp___1=0, tmp___3=0, vhost_scsi_fops={355:0}, vhost_scsi_misc={356:0}, vhost_zcopy_mask=0] [L12804] CALL, EXPR ldv__builtin_expect((long )descriptor___0.flags & 1L, 0L) VAL [\old(c)=0, \old(exp)=0, __this_module={36893488147419103251:36893488147419103238}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={354:0}, tcm_vhost_mutex={353:0}, tcm_vhost_ops={361:0}, tcm_vhost_tpg_attrs={358:0}, tcm_vhost_tpg_nexus={357:0}, tcm_vhost_workqueue={363:-362}, tcm_vhost_wwn_attrs={360:0}, tcm_vhost_wwn_version={359:0}, vhost_scsi_fops={355:0}, vhost_scsi_misc={356:0}, vhost_zcopy_mask=0] [L13675] return (exp); VAL [\old(c)=0, \old(exp)=0, \result=0, __this_module={36893488147419103251:36893488147419103238}, c=0, exp=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={354:0}, tcm_vhost_mutex={353:0}, tcm_vhost_ops={361:0}, tcm_vhost_tpg_attrs={358:0}, tcm_vhost_tpg_nexus={357:0}, tcm_vhost_workqueue={363:-362}, tcm_vhost_wwn_attrs={360:0}, tcm_vhost_wwn_version={359:0}, vhost_scsi_fops={355:0}, vhost_scsi_misc={356:0}, vhost_zcopy_mask=0] [L12804] RET, EXPR ldv__builtin_expect((long )descriptor___0.flags & 1L, 0L) VAL [__this_module={36893488147419103251:36893488147419103238}, descriptor={365:0}, descriptor___0={369:0}, descriptor___0.flags=0, fabric={0:0}, ldv__builtin_expect((long )descriptor___0.flags & 1L, 0L)=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, ret=0, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={354:0}, tcm_vhost_mutex={353:0}, tcm_vhost_ops={361:0}, tcm_vhost_tpg_attrs={358:0}, tcm_vhost_tpg_nexus={357:0}, tcm_vhost_workqueue={363:-362}, tcm_vhost_wwn_attrs={360:0}, tcm_vhost_wwn_version={359:0}, tmp___1=0, tmp___3=0, vhost_scsi_fops={355:0}, vhost_scsi_misc={356:0}, vhost_zcopy_mask=0] [L12804] tmp___4 = ldv__builtin_expect((long )descriptor___0.flags & 1L, 0L) [L12805] COND FALSE !(tmp___4 != 0L) VAL [__this_module={36893488147419103251:36893488147419103238}, descriptor={365:0}, descriptor___0={369:0}, fabric={0:0}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, ret=0, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={354:0}, tcm_vhost_mutex={353:0}, tcm_vhost_ops={361:0}, tcm_vhost_tpg_attrs={358:0}, tcm_vhost_tpg_nexus={357:0}, tcm_vhost_workqueue={363:-362}, tcm_vhost_wwn_attrs={360:0}, tcm_vhost_wwn_version={359:0}, tmp___1=0, tmp___3=0, tmp___4=0, vhost_scsi_fops={355:0}, vhost_scsi_misc={356:0}, vhost_zcopy_mask=0] [L12809] return (0); [L12809] return (0); [L12809] return (0); VAL [\result=0, __this_module={36893488147419103251:36893488147419103238}, fabric={0:0}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, ret=0, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={354:0}, tcm_vhost_mutex={353:0}, tcm_vhost_ops={361:0}, tcm_vhost_tpg_attrs={358:0}, tcm_vhost_tpg_nexus={357:0}, tcm_vhost_workqueue={363:-362}, tcm_vhost_wwn_attrs={360:0}, tcm_vhost_wwn_version={359:0}, tmp___1=0, tmp___3=0, tmp___4=0, vhost_scsi_fops={355:0}, vhost_scsi_misc={356:0}, vhost_zcopy_mask=0] [L12857] RET, EXPR tcm_vhost_register_configfs() [L12857] ret = tcm_vhost_register_configfs() [L12858] COND FALSE !(ret < 0) [L12862] return (0); [L12862] return (0); VAL [\result=0, __alloc_workqueue_key("tcm_vhost", 0U, 0, & __key, __lock_name)={363:-362}, __lock_name={351:0}, __this_module={36893488147419103251:36893488147419103238}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, ret=0, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={354:0}, tcm_vhost_mutex={353:0}, tcm_vhost_ops={361:0}, tcm_vhost_tpg_attrs={358:0}, tcm_vhost_tpg_nexus={357:0}, tcm_vhost_workqueue={363:-362}, tcm_vhost_wwn_attrs={360:0}, tcm_vhost_wwn_version={359:0}, tmp={363:-362}, vhost_scsi_fops={355:0}, vhost_scsi_misc={356:0}, vhost_zcopy_mask=0] [L12923] RET, EXPR tcm_vhost_init() [L12923] tmp = tcm_vhost_init() [L12924] COND FALSE !(tmp != 0) VAL [__this_module={36893488147419103251:36893488147419103238}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, ldv_s_vhost_scsi_fops_file_operations=0, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={354:0}, tcm_vhost_mutex={353:0}, tcm_vhost_ops={361:0}, tcm_vhost_tpg_attrs={358:0}, tcm_vhost_tpg_nexus={357:0}, tcm_vhost_workqueue={363:-362}, tcm_vhost_wwn_attrs={360:0}, tcm_vhost_wwn_version={359:0}, tmp=0, vhost_scsi_fops={355:0}, vhost_scsi_misc={356:0}, vhost_zcopy_mask=0] [L13102] tmp___1 = __VERIFIER_nondet_int() [L13103] COND TRUE tmp___1 != 0 || ldv_s_vhost_scsi_fops_file_operations != 0 VAL [__this_module={36893488147419103251:36893488147419103238}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, ldv_s_vhost_scsi_fops_file_operations=0, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={354:0}, tcm_vhost_mutex={353:0}, tcm_vhost_ops={361:0}, tcm_vhost_tpg_attrs={358:0}, tcm_vhost_tpg_nexus={357:0}, tcm_vhost_workqueue={363:-362}, tcm_vhost_wwn_attrs={360:0}, tcm_vhost_wwn_version={359:0}, tmp=0, tmp___1=1, vhost_scsi_fops={355:0}, vhost_scsi_misc={356:0}, vhost_zcopy_mask=0] [L12930] tmp___0 = __VERIFIER_nondet_int() [L12932] case 0: [L12945] case 1: [L12953] case 2: VAL [__this_module={36893488147419103251:36893488147419103238}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, ldv_s_vhost_scsi_fops_file_operations=0, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={354:0}, tcm_vhost_mutex={353:0}, tcm_vhost_ops={361:0}, tcm_vhost_tpg_attrs={358:0}, tcm_vhost_tpg_nexus={357:0}, tcm_vhost_workqueue={363:-362}, tcm_vhost_wwn_attrs={360:0}, tcm_vhost_wwn_version={359:0}, tmp=0, tmp___0=2, tmp___1=1, vhost_scsi_fops={355:0}, vhost_scsi_misc={356:0}, vhost_zcopy_mask=0] [L12954] FCALL ldv_handler_precall() VAL [__this_module={36893488147419103251:36893488147419103238}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, ldv_s_vhost_scsi_fops_file_operations=0, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={354:0}, tcm_vhost_mutex={353:0}, tcm_vhost_ops={361:0}, tcm_vhost_tpg_attrs={358:0}, tcm_vhost_tpg_nexus={357:0}, tcm_vhost_workqueue={363:-362}, tcm_vhost_wwn_attrs={360:0}, tcm_vhost_wwn_version={359:0}, tmp=0, tmp___0=2, tmp___1=1, vhost_scsi_fops={355:0}, vhost_scsi_misc={356:0}, vhost_zcopy_mask=0] [L12955] CALL vhost_scsi_ioctl(var_group2, var_vhost_scsi_ioctl_44_p1, var_vhost_scsi_ioctl_44_p2) VAL [\old(ldv_mutex_mutex)=1, \old(ldv_mutex_tcm_vhost_mutex)=1, \old(ldv_mutex_tv_tpg_mutex)=1, __this_module={36893488147419103251:36893488147419103238}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={354:0}, tcm_vhost_mutex={353:0}, tcm_vhost_ops={361:0}, tcm_vhost_tpg_attrs={358:0}, tcm_vhost_tpg_nexus={357:0}, tcm_vhost_workqueue={363:-362}, tcm_vhost_wwn_attrs={360:0}, tcm_vhost_wwn_version={359:0}, vhost_scsi_fops={355:0}, vhost_scsi_misc={356:0}, vhost_zcopy_mask=0] [L12095] struct vhost_scsi *vs ; [L12096] struct vhost_scsi_target backend ; [L12097] void *argp ; [L12098] u64 *featurep ; [L12099] u64 features ; [L12100] int r ; [L12101] int abi_version ; [L12102] unsigned long tmp ; [L12103] int tmp___0 ; [L12104] unsigned long tmp___1 ; [L12105] int tmp___2 ; [L12106] int tmp___3 ; [L12107] int tmp___4 ; [L12108] unsigned long tmp___5 ; [L12109] int tmp___6 ; [L12110] long tmp___7 ; [L12112] EXPR f->private_data [L12112] vs = (struct vhost_scsi *)f->private_data [L12113] argp = (void *)arg [L12114] featurep = (u64 *)argp [L12115] abi_version = 0 [L12117] case 1088991040U: [L12129] case 1088991041U: [L12141] case 1074048834U: [L12148] case 2148052736U: [L12156] case 1074310912U: VAL [\old(arg)=18446744073709551613, \old(ioctl)=1074310912, \old(ldv_mutex_mutex)=1, \old(ldv_mutex_tcm_vhost_mutex)=1, \old(ldv_mutex_tv_tpg_mutex)=1, __this_module={36893488147419103251:36893488147419103238}, abi_version={367:0}, arg=18446744073709551613, argp={0:-3}, backend={370:0}, f={36893488147419103239:-286}, f={36893488147419103239:-286}, featurep={0:-3}, features={368:0}, ioctl=1074310912, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={354:0}, tcm_vhost_mutex={353:0}, tcm_vhost_ops={361:0}, tcm_vhost_tpg_attrs={358:0}, tcm_vhost_tpg_nexus={357:0}, tcm_vhost_workqueue={363:-362}, tcm_vhost_wwn_attrs={360:0}, tcm_vhost_wwn_version={359:0}, vhost_scsi_fops={355:0}, vhost_scsi_misc={356:0}, vhost_zcopy_mask=0, vs={36893488147419103262:-8}] [L12157] CALL, EXPR copy_from_user((void *)(& features), (void const *)featurep, 8UL) VAL [\old(ldv_mutex_mutex)=1, \old(ldv_mutex_tcm_vhost_mutex)=1, \old(ldv_mutex_tv_tpg_mutex)=1, \old(n)=8, __this_module={36893488147419103251:36893488147419103238}, from={0:-3}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={354:0}, tcm_vhost_mutex={353:0}, tcm_vhost_ops={361:0}, tcm_vhost_tpg_attrs={358:0}, tcm_vhost_tpg_nexus={357:0}, tcm_vhost_workqueue={363:-362}, tcm_vhost_wwn_attrs={360:0}, tcm_vhost_wwn_version={359:0}, to={368:0}, vhost_scsi_fops={355:0}, vhost_scsi_misc={356:0}, vhost_zcopy_mask=0] [L7397] int sz ; [L7398] unsigned long tmp ; [L7399] int __ret_warn_on ; [L7400] long tmp___0 ; [L7401] long tmp___1 ; [L7402] long tmp___2 ; [L7404] tmp = __builtin_object_size((void const *)to, 0) [L7405] sz = (int )tmp VAL [\old(ldv_mutex_mutex)=1, \old(ldv_mutex_tcm_vhost_mutex)=1, \old(ldv_mutex_tv_tpg_mutex)=1, \old(n)=8, __this_module={36893488147419103251:36893488147419103238}, from={0:-3}, from={0:-3}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, n=8, sz=-1, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={354:0}, tcm_vhost_mutex={353:0}, tcm_vhost_ops={361:0}, tcm_vhost_tpg_attrs={358:0}, tcm_vhost_tpg_nexus={357:0}, tcm_vhost_workqueue={363:-362}, tcm_vhost_wwn_attrs={360:0}, tcm_vhost_wwn_version={359:0}, tmp=4294967295, to={368:0}, to={368:0}, vhost_scsi_fops={355:0}, vhost_scsi_misc={356:0}, vhost_zcopy_mask=0] [L7406] FCALL might_fault() VAL [\old(ldv_mutex_mutex)=1, \old(ldv_mutex_tcm_vhost_mutex)=1, \old(ldv_mutex_tv_tpg_mutex)=1, \old(n)=8, __this_module={36893488147419103251:36893488147419103238}, from={0:-3}, from={0:-3}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, n=8, sz=-1, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={354:0}, tcm_vhost_mutex={353:0}, tcm_vhost_ops={361:0}, tcm_vhost_tpg_attrs={358:0}, tcm_vhost_tpg_nexus={357:0}, tcm_vhost_workqueue={363:-362}, tcm_vhost_wwn_attrs={360:0}, tcm_vhost_wwn_version={359:0}, tmp=4294967295, to={368:0}, to={368:0}, vhost_scsi_fops={355:0}, vhost_scsi_misc={356:0}, vhost_zcopy_mask=0] [L7407] CALL, EXPR ldv__builtin_expect(sz == -1, 1L) VAL [\old(c)=1, \old(exp)=1, \old(ldv_mutex_mutex)=1, \old(ldv_mutex_tcm_vhost_mutex)=1, \old(ldv_mutex_tv_tpg_mutex)=1, __this_module={36893488147419103251:36893488147419103238}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={354:0}, tcm_vhost_mutex={353:0}, tcm_vhost_ops={361:0}, tcm_vhost_tpg_attrs={358:0}, tcm_vhost_tpg_nexus={357:0}, tcm_vhost_workqueue={363:-362}, tcm_vhost_wwn_attrs={360:0}, tcm_vhost_wwn_version={359:0}, vhost_scsi_fops={355:0}, vhost_scsi_misc={356:0}, vhost_zcopy_mask=0] [L13675] return (exp); VAL [\old(c)=1, \old(exp)=1, \old(ldv_mutex_mutex)=1, \old(ldv_mutex_tcm_vhost_mutex)=1, \old(ldv_mutex_tv_tpg_mutex)=1, \result=1, __this_module={36893488147419103251:36893488147419103238}, c=1, exp=1, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={354:0}, tcm_vhost_mutex={353:0}, tcm_vhost_ops={361:0}, tcm_vhost_tpg_attrs={358:0}, tcm_vhost_tpg_nexus={357:0}, tcm_vhost_workqueue={363:-362}, tcm_vhost_wwn_attrs={360:0}, tcm_vhost_wwn_version={359:0}, vhost_scsi_fops={355:0}, vhost_scsi_misc={356:0}, vhost_zcopy_mask=0] [L7407] RET, EXPR ldv__builtin_expect(sz == -1, 1L) VAL [\old(ldv_mutex_mutex)=1, \old(ldv_mutex_tcm_vhost_mutex)=1, \old(ldv_mutex_tv_tpg_mutex)=1, \old(n)=8, __this_module={36893488147419103251:36893488147419103238}, from={0:-3}, from={0:-3}, ldv__builtin_expect(sz == -1, 1L)=1, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, n=8, sz=-1, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={354:0}, tcm_vhost_mutex={353:0}, tcm_vhost_ops={361:0}, tcm_vhost_tpg_attrs={358:0}, tcm_vhost_tpg_nexus={357:0}, tcm_vhost_workqueue={363:-362}, tcm_vhost_wwn_attrs={360:0}, tcm_vhost_wwn_version={359:0}, tmp=4294967295, to={368:0}, to={368:0}, vhost_scsi_fops={355:0}, vhost_scsi_misc={356:0}, vhost_zcopy_mask=0] [L7407] tmp___1 = ldv__builtin_expect(sz == -1, 1L) [L7408] COND TRUE tmp___1 != 0L VAL [\old(ldv_mutex_mutex)=1, \old(ldv_mutex_tcm_vhost_mutex)=1, \old(ldv_mutex_tv_tpg_mutex)=1, \old(n)=8, __this_module={36893488147419103251:36893488147419103238}, from={0:-3}, from={0:-3}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, n=8, sz=-1, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={354:0}, tcm_vhost_mutex={353:0}, tcm_vhost_ops={361:0}, tcm_vhost_tpg_attrs={358:0}, tcm_vhost_tpg_nexus={357:0}, tcm_vhost_workqueue={363:-362}, tcm_vhost_wwn_attrs={360:0}, tcm_vhost_wwn_version={359:0}, tmp=4294967295, tmp___1=1, to={368:0}, to={368:0}, vhost_scsi_fops={355:0}, vhost_scsi_misc={356:0}, vhost_zcopy_mask=0] [L7409] CALL, EXPR _copy_from_user(to, from, (unsigned int )n) VAL [\old(arg2)=8, \old(ldv_mutex_mutex)=1, \old(ldv_mutex_tcm_vhost_mutex)=1, \old(ldv_mutex_tv_tpg_mutex)=1, __this_module={36893488147419103251:36893488147419103238}, arg0={368:0}, arg1={0:-3}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={354:0}, tcm_vhost_mutex={353:0}, tcm_vhost_ops={361:0}, tcm_vhost_tpg_attrs={358:0}, tcm_vhost_tpg_nexus={357:0}, tcm_vhost_workqueue={363:-362}, tcm_vhost_wwn_attrs={360:0}, tcm_vhost_wwn_version={359:0}, vhost_scsi_fops={355:0}, vhost_scsi_misc={356:0}, vhost_zcopy_mask=0] [L14395] return __VERIFIER_nondet_ulong(); [L7409] RET, EXPR _copy_from_user(to, from, (unsigned int )n) VAL [\old(ldv_mutex_mutex)=1, \old(ldv_mutex_tcm_vhost_mutex)=1, \old(ldv_mutex_tv_tpg_mutex)=1, \old(n)=8, __this_module={36893488147419103251:36893488147419103238}, _copy_from_user(to, from, (unsigned int )n)=0, from={0:-3}, from={0:-3}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, n=8, sz=-1, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={354:0}, tcm_vhost_mutex={353:0}, tcm_vhost_ops={361:0}, tcm_vhost_tpg_attrs={358:0}, tcm_vhost_tpg_nexus={357:0}, tcm_vhost_workqueue={363:-362}, tcm_vhost_wwn_attrs={360:0}, tcm_vhost_wwn_version={359:0}, tmp=4294967295, tmp___1=1, to={368:0}, to={368:0}, vhost_scsi_fops={355:0}, vhost_scsi_misc={356:0}, vhost_zcopy_mask=0] [L7409] n = _copy_from_user(to, from, (unsigned int )n) [L7425] return (n); VAL [\old(ldv_mutex_mutex)=1, \old(ldv_mutex_tcm_vhost_mutex)=1, \old(ldv_mutex_tv_tpg_mutex)=1, \old(n)=8, \result=0, __this_module={36893488147419103251:36893488147419103238}, from={0:-3}, from={0:-3}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, n=0, sz=-1, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={354:0}, tcm_vhost_mutex={353:0}, tcm_vhost_ops={361:0}, tcm_vhost_tpg_attrs={358:0}, tcm_vhost_tpg_nexus={357:0}, tcm_vhost_workqueue={363:-362}, tcm_vhost_wwn_attrs={360:0}, tcm_vhost_wwn_version={359:0}, tmp=4294967295, tmp___1=1, to={368:0}, to={368:0}, vhost_scsi_fops={355:0}, vhost_scsi_misc={356:0}, vhost_zcopy_mask=0] [L12157] RET, EXPR copy_from_user((void *)(& features), (void const *)featurep, 8UL) VAL [\old(arg)=18446744073709551613, \old(ioctl)=1074310912, \old(ldv_mutex_mutex)=1, \old(ldv_mutex_tcm_vhost_mutex)=1, \old(ldv_mutex_tv_tpg_mutex)=1, __this_module={36893488147419103251:36893488147419103238}, abi_version={367:0}, arg=18446744073709551613, argp={0:-3}, backend={370:0}, copy_from_user((void *)(& features), (void const *)featurep, 8UL)=0, f={36893488147419103239:-286}, f={36893488147419103239:-286}, featurep={0:-3}, features={368:0}, ioctl=1074310912, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={354:0}, tcm_vhost_mutex={353:0}, tcm_vhost_ops={361:0}, tcm_vhost_tpg_attrs={358:0}, tcm_vhost_tpg_nexus={357:0}, tcm_vhost_workqueue={363:-362}, tcm_vhost_wwn_attrs={360:0}, tcm_vhost_wwn_version={359:0}, vhost_scsi_fops={355:0}, vhost_scsi_misc={356:0}, vhost_zcopy_mask=0, vs={36893488147419103262:-8}] [L12157] tmp___5 = copy_from_user((void *)(& features), (void const *)featurep, 8UL) [L12158] COND FALSE !(tmp___5 != 0UL) [L12162] EXPR \read(features) [L12162] CALL vhost_scsi_set_features(vs, features) [L12070] int tmp ; VAL [\old(features)=0, \old(ldv_mutex_mutex)=1, \old(ldv_mutex_tcm_vhost_mutex)=1, \old(ldv_mutex_tv_tpg_mutex)=1, __this_module={36893488147419103251:36893488147419103238}, features=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={354:0}, tcm_vhost_mutex={353:0}, tcm_vhost_ops={361:0}, tcm_vhost_tpg_attrs={358:0}, tcm_vhost_tpg_nexus={357:0}, tcm_vhost_workqueue={363:-362}, tcm_vhost_wwn_attrs={360:0}, tcm_vhost_wwn_version={359:0}, vhost_scsi_fops={355:0}, vhost_scsi_misc={356:0}, vhost_zcopy_mask=0, vs={36893488147419103262:-8}, vs={36893488147419103262:-8}] [L12072] COND FALSE !((features & 0xffffffffcaffffffULL) != 0ULL) [L12076] CALL ldv_mutex_lock_41(& vs->dev.mutex) [L13443] CALL ldv_mutex_lock_mutex(ldv_func_arg1) VAL [\old(ldv_mutex_mutex)=1, \old(ldv_mutex_tcm_vhost_mutex)=1, \old(ldv_mutex_tv_tpg_mutex)=1, __this_module={36893488147419103251:36893488147419103238}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, lock={36893488147419103262:16}, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={354:0}, tcm_vhost_mutex={353:0}, tcm_vhost_ops={361:0}, tcm_vhost_tpg_attrs={358:0}, tcm_vhost_tpg_nexus={357:0}, tcm_vhost_workqueue={363:-362}, tcm_vhost_wwn_attrs={360:0}, tcm_vhost_wwn_version={359:0}, vhost_scsi_fops={355:0}, vhost_scsi_misc={356:0}, vhost_zcopy_mask=0] [L14037] COND TRUE ldv_mutex_mutex == 1 VAL [\old(ldv_mutex_mutex)=1, \old(ldv_mutex_tcm_vhost_mutex)=1, \old(ldv_mutex_tv_tpg_mutex)=1, __this_module={36893488147419103251:36893488147419103238}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=1, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, lock={36893488147419103262:16}, lock={36893488147419103262:16}, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={354:0}, tcm_vhost_mutex={353:0}, tcm_vhost_ops={361:0}, tcm_vhost_tpg_attrs={358:0}, tcm_vhost_tpg_nexus={357:0}, tcm_vhost_workqueue={363:-362}, tcm_vhost_wwn_attrs={360:0}, tcm_vhost_wwn_version={359:0}, vhost_scsi_fops={355:0}, vhost_scsi_misc={356:0}, vhost_zcopy_mask=0] [L14041] ldv_mutex_mutex = 2 VAL [\old(ldv_mutex_mutex)=1, \old(ldv_mutex_tcm_vhost_mutex)=1, \old(ldv_mutex_tv_tpg_mutex)=1, __this_module={36893488147419103251:36893488147419103238}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, lock={36893488147419103262:16}, lock={36893488147419103262:16}, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={354:0}, tcm_vhost_mutex={353:0}, tcm_vhost_ops={361:0}, tcm_vhost_tpg_attrs={358:0}, tcm_vhost_tpg_nexus={357:0}, tcm_vhost_workqueue={363:-362}, tcm_vhost_wwn_attrs={360:0}, tcm_vhost_wwn_version={359:0}, vhost_scsi_fops={355:0}, vhost_scsi_misc={356:0}, vhost_zcopy_mask=0] [L13443] RET ldv_mutex_lock_mutex(ldv_func_arg1) VAL [\old(ldv_mutex_mutex)=1, \old(ldv_mutex_tcm_vhost_mutex)=1, \old(ldv_mutex_tv_tpg_mutex)=1, __this_module={36893488147419103251:36893488147419103238}, ldv_func_arg1={36893488147419103262:16}, ldv_func_arg1={36893488147419103262:16}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={354:0}, tcm_vhost_mutex={353:0}, tcm_vhost_ops={361:0}, tcm_vhost_tpg_attrs={358:0}, tcm_vhost_tpg_nexus={357:0}, tcm_vhost_workqueue={363:-362}, tcm_vhost_wwn_attrs={360:0}, tcm_vhost_wwn_version={359:0}, vhost_scsi_fops={355:0}, vhost_scsi_misc={356:0}, vhost_zcopy_mask=0] [L13444] FCALL mutex_lock(ldv_func_arg1) VAL [\old(ldv_mutex_mutex)=1, \old(ldv_mutex_tcm_vhost_mutex)=1, \old(ldv_mutex_tv_tpg_mutex)=1, __this_module={36893488147419103251:36893488147419103238}, ldv_func_arg1={36893488147419103262:16}, ldv_func_arg1={36893488147419103262:16}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={354:0}, tcm_vhost_mutex={353:0}, tcm_vhost_ops={361:0}, tcm_vhost_tpg_attrs={358:0}, tcm_vhost_tpg_nexus={357:0}, tcm_vhost_workqueue={363:-362}, tcm_vhost_wwn_attrs={360:0}, tcm_vhost_wwn_version={359:0}, vhost_scsi_fops={355:0}, vhost_scsi_misc={356:0}, vhost_zcopy_mask=0] [L12076] RET ldv_mutex_lock_41(& vs->dev.mutex) [L12077] COND TRUE (features & 67108864ULL) != 0ULL [L12078] CALL vhost_log_access_ok(& vs->dev) [L8496] struct vhost_memory *mp ; [L8497] bool __warned ; [L8498] int tmp ; [L8499] int tmp___0 ; [L8500] int tmp___1 ; VAL [\old(ldv_mutex_mutex)=1, \old(ldv_mutex_tcm_vhost_mutex)=1, \old(ldv_mutex_tv_tpg_mutex)=1, __this_module={36893488147419103251:36893488147419103238}, dev={36893488147419103262:0}, dev={36893488147419103262:0}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={354:0}, tcm_vhost_mutex={353:0}, tcm_vhost_ops={361:0}, tcm_vhost_tpg_attrs={358:0}, tcm_vhost_tpg_nexus={357:0}, tcm_vhost_workqueue={363:-362}, tcm_vhost_wwn_attrs={360:0}, tcm_vhost_wwn_version={359:0}, vhost_scsi_fops={355:0}, vhost_scsi_misc={356:0}, vhost_zcopy_mask=0] [L8502] CALL, EXPR debug_lockdep_rcu_enabled() VAL [\old(ldv_mutex_mutex)=1, \old(ldv_mutex_tcm_vhost_mutex)=1, \old(ldv_mutex_tv_tpg_mutex)=1, __this_module={36893488147419103251:36893488147419103238}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={354:0}, tcm_vhost_mutex={353:0}, tcm_vhost_ops={361:0}, tcm_vhost_tpg_attrs={358:0}, tcm_vhost_tpg_nexus={357:0}, tcm_vhost_workqueue={363:-362}, tcm_vhost_wwn_attrs={360:0}, tcm_vhost_wwn_version={359:0}, vhost_scsi_fops={355:0}, vhost_scsi_misc={356:0}, vhost_zcopy_mask=0] [L14447] return __VERIFIER_nondet_int(); [L8502] RET, EXPR debug_lockdep_rcu_enabled() VAL [\old(ldv_mutex_mutex)=1, \old(ldv_mutex_tcm_vhost_mutex)=1, \old(ldv_mutex_tv_tpg_mutex)=1, __this_module={36893488147419103251:36893488147419103238}, debug_lockdep_rcu_enabled()=0, dev={36893488147419103262:0}, dev={36893488147419103262:0}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={354:0}, tcm_vhost_mutex={353:0}, tcm_vhost_ops={361:0}, tcm_vhost_tpg_attrs={358:0}, tcm_vhost_tpg_nexus={357:0}, tcm_vhost_workqueue={363:-362}, tcm_vhost_wwn_attrs={360:0}, tcm_vhost_wwn_version={359:0}, vhost_scsi_fops={355:0}, vhost_scsi_misc={356:0}, vhost_zcopy_mask=0] [L8502] tmp = debug_lockdep_rcu_enabled() [L8503] COND FALSE !(tmp != 0 && ! __warned) VAL [\old(ldv_mutex_mutex)=1, \old(ldv_mutex_tcm_vhost_mutex)=1, \old(ldv_mutex_tv_tpg_mutex)=1, __this_module={36893488147419103251:36893488147419103238}, __warned=1, dev={36893488147419103262:0}, dev={36893488147419103262:0}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={354:0}, tcm_vhost_mutex={353:0}, tcm_vhost_ops={361:0}, tcm_vhost_tpg_attrs={358:0}, tcm_vhost_tpg_nexus={357:0}, tcm_vhost_workqueue={363:-362}, tcm_vhost_wwn_attrs={360:0}, tcm_vhost_wwn_version={359:0}, tmp=0, vhost_scsi_fops={355:0}, vhost_scsi_misc={356:0}, vhost_zcopy_mask=0] [L8513] EXPR dev->memory [L8513] mp = dev->memory [L8514] CALL memory_access_ok(dev, mp, 1) VAL [\old(ldv_mutex_mutex)=2, \old(ldv_mutex_tcm_vhost_mutex)=1, \old(ldv_mutex_tv_tpg_mutex)=1, __this_module={36893488147419103251:36893488147419103238}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={354:0}, tcm_vhost_mutex={353:0}, tcm_vhost_ops={361:0}, tcm_vhost_tpg_attrs={358:0}, tcm_vhost_tpg_nexus={357:0}, tcm_vhost_workqueue={363:-362}, tcm_vhost_wwn_attrs={360:0}, tcm_vhost_wwn_version={359:0}, vhost_scsi_fops={355:0}, vhost_scsi_misc={356:0}, vhost_zcopy_mask=0] [L8418] int i ; [L8419] int ok ; [L8421] i = 0 VAL [\old(ldv_mutex_mutex)=2, \old(ldv_mutex_tcm_vhost_mutex)=1, \old(ldv_mutex_tv_tpg_mutex)=1, \old(log_all)=1, __this_module={36893488147419103251:36893488147419103238}, d={36893488147419103262:0}, d={36893488147419103262:0}, i=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, log_all=1, mem={36893488147419103270:36893488147419103243}, mem={36893488147419103270:36893488147419103243}, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={354:0}, tcm_vhost_mutex={353:0}, tcm_vhost_ops={361:0}, tcm_vhost_tpg_attrs={358:0}, tcm_vhost_tpg_nexus={357:0}, tcm_vhost_workqueue={363:-362}, tcm_vhost_wwn_attrs={360:0}, tcm_vhost_wwn_version={359:0}, vhost_scsi_fops={355:0}, vhost_scsi_misc={356:0}, vhost_zcopy_mask=0] [L8437] EXPR d->nvqs VAL [\old(ldv_mutex_mutex)=2, \old(ldv_mutex_tcm_vhost_mutex)=1, \old(ldv_mutex_tv_tpg_mutex)=1, \old(log_all)=1, __this_module={36893488147419103251:36893488147419103238}, d={36893488147419103262:0}, d={36893488147419103262:0}, d->nvqs=362, i=0, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, log_all=1, mem={36893488147419103270:36893488147419103243}, mem={36893488147419103270:36893488147419103243}, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={354:0}, tcm_vhost_mutex={353:0}, tcm_vhost_ops={361:0}, tcm_vhost_tpg_attrs={358:0}, tcm_vhost_tpg_nexus={357:0}, tcm_vhost_workqueue={363:-362}, tcm_vhost_wwn_attrs={360:0}, tcm_vhost_wwn_version={359:0}, vhost_scsi_fops={355:0}, vhost_scsi_misc={356:0}, vhost_zcopy_mask=0] [L8437] COND TRUE d->nvqs > i [L8424] EXPR d->vqs [L8424] CALL ldv_mutex_lock_12(& (d->vqs + (unsigned long )i)->mutex) [L13211] CALL ldv_mutex_lock_mutex(ldv_func_arg1) VAL [\old(ldv_mutex_mutex)=2, \old(ldv_mutex_tcm_vhost_mutex)=1, \old(ldv_mutex_tv_tpg_mutex)=1, __this_module={36893488147419103251:36893488147419103238}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, lock={36893488147419103299:-4}, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={354:0}, tcm_vhost_mutex={353:0}, tcm_vhost_ops={361:0}, tcm_vhost_tpg_attrs={358:0}, tcm_vhost_tpg_nexus={357:0}, tcm_vhost_workqueue={363:-362}, tcm_vhost_wwn_attrs={360:0}, tcm_vhost_wwn_version={359:0}, vhost_scsi_fops={355:0}, vhost_scsi_misc={356:0}, vhost_zcopy_mask=0] [L14037] COND FALSE !(ldv_mutex_mutex == 1) VAL [\old(ldv_mutex_mutex)=2, \old(ldv_mutex_tcm_vhost_mutex)=1, \old(ldv_mutex_tv_tpg_mutex)=1, __this_module={36893488147419103251:36893488147419103238}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, lock={36893488147419103299:-4}, lock={36893488147419103299:-4}, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={354:0}, tcm_vhost_mutex={353:0}, tcm_vhost_ops={361:0}, tcm_vhost_tpg_attrs={358:0}, tcm_vhost_tpg_nexus={357:0}, tcm_vhost_workqueue={363:-362}, tcm_vhost_wwn_attrs={360:0}, tcm_vhost_wwn_version={359:0}, vhost_scsi_fops={355:0}, vhost_scsi_misc={356:0}, vhost_zcopy_mask=0] [L14039] CALL ldv_error() VAL [\old(ldv_mutex_mutex)=2, \old(ldv_mutex_tcm_vhost_mutex)=1, \old(ldv_mutex_tv_tpg_mutex)=1, __this_module={36893488147419103251:36893488147419103238}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={354:0}, tcm_vhost_mutex={353:0}, tcm_vhost_ops={361:0}, tcm_vhost_tpg_attrs={358:0}, tcm_vhost_tpg_nexus={357:0}, tcm_vhost_workqueue={363:-362}, tcm_vhost_wwn_attrs={360:0}, tcm_vhost_wwn_version={359:0}, vhost_scsi_fops={355:0}, vhost_scsi_misc={356:0}, vhost_zcopy_mask=0] [L13668] reach_error() VAL [\old(ldv_mutex_mutex)=2, \old(ldv_mutex_tcm_vhost_mutex)=1, \old(ldv_mutex_tv_tpg_mutex)=1, __this_module={36893488147419103251:36893488147419103238}, LDV_IN_INTERRUPT=1, ldv_mutex_cred_guard_mutex=1, ldv_mutex_lock=1, ldv_mutex_mtx=1, ldv_mutex_mutex=2, ldv_mutex_tcm_vhost_mutex=1, ldv_mutex_tv_tpg_mutex=1, tcm_vhost_fabric_configfs={0:0}, tcm_vhost_list={354:0}, tcm_vhost_mutex={353:0}, tcm_vhost_ops={361:0}, tcm_vhost_tpg_attrs={358:0}, tcm_vhost_tpg_nexus={357:0}, tcm_vhost_workqueue={363:-362}, tcm_vhost_wwn_attrs={360:0}, tcm_vhost_wwn_version={359:0}, vhost_scsi_fops={355:0}, vhost_scsi_misc={356:0}, vhost_zcopy_mask=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 115 procedures, 2443 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 162.8s, OverallIterations: 17, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 122.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 26 mSolverCounterUnknown, 33409 SdHoareTripleChecker+Valid, 113.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 31233 mSDsluCounter, 176683 SdHoareTripleChecker+Invalid, 105.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 131052 mSDsCounter, 4722 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 34138 IncrementalHoareTripleChecker+Invalid, 38886 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4722 mSolverCounterUnsat, 45631 mSDtfsCounter, 34138 mSolverCounterSat, 1.1s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 656 GetRequests, 548 SyntacticMatches, 3 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 392 ImplicationChecksByTransitivity, 7.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3355occurred in iteration=6, InterpolantAutomatonStates: 94, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 4.6s AutomataMinimizationTime, 16 MinimizatonAttempts, 2100 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 7.2s SatisfiabilityAnalysisTime, 22.2s InterpolantComputationTime, 1454 NumberOfCodeBlocks, 1454 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 1319 ConstructedInterpolants, 1 QuantifiedInterpolants, 2475 SizeOfPredicates, 40 NumberOfNonLiveVariables, 8961 ConjunctsInSsa, 144 ConjunctsInUnsatCore, 19 InterpolantComputations, 16 PerfectInterpolantSequences, 126/132 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-21 09:12:47,734 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64ea10b8-5b10-4f43-8fa2-c8c34f487951/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64ea10b8-5b10-4f43-8fa2-c8c34f487951/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64ea10b8-5b10-4f43-8fa2-c8c34f487951/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64ea10b8-5b10-4f43-8fa2-c8c34f487951/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64ea10b8-5b10-4f43-8fa2-c8c34f487951/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.7.3/main0_drivers-vhost-tcm_vhost-ko--32_7a--linux-3.7.3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64ea10b8-5b10-4f43-8fa2-c8c34f487951/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64ea10b8-5b10-4f43-8fa2-c8c34f487951/bin/uautomizer-vX5HgA9Q3a --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 3d776a54fbebbd358d59ab0126298feae1e40360b6fb5e6158cd54ba5ef877f7 --- 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-b5237d8 [2022-11-21 09:12:50,285 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 09:12:50,287 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 09:12:50,330 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 09:12:50,331 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 09:12:50,332 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 09:12:50,334 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 09:12:50,336 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 09:12:50,338 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 09:12:50,339 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 09:12:50,340 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 09:12:50,341 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 09:12:50,342 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 09:12:50,343 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 09:12:50,344 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 09:12:50,345 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 09:12:50,346 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 09:12:50,348 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 09:12:50,350 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 09:12:50,352 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 09:12:50,353 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 09:12:50,355 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 09:12:50,357 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 09:12:50,358 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 09:12:50,362 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 09:12:50,362 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 09:12:50,363 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 09:12:50,364 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 09:12:50,365 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 09:12:50,366 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 09:12:50,366 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 09:12:50,367 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 09:12:50,368 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 09:12:50,369 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 09:12:50,370 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 09:12:50,370 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 09:12:50,371 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 09:12:50,372 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 09:12:50,372 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 09:12:50,373 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 09:12:50,374 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 09:12:50,375 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64ea10b8-5b10-4f43-8fa2-c8c34f487951/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-21 09:12:50,400 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 09:12:50,400 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 09:12:50,401 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 09:12:50,401 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 09:12:50,402 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 09:12:50,402 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 09:12:50,403 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 09:12:50,406 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 09:12:50,407 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 09:12:50,407 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 09:12:50,407 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 09:12:50,408 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 09:12:50,408 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 09:12:50,408 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 09:12:50,409 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-21 09:12:50,409 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-21 09:12:50,409 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-21 09:12:50,409 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 09:12:50,411 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 09:12:50,412 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 09:12:50,412 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 09:12:50,412 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 09:12:50,413 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 09:12:50,414 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 09:12:50,414 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 09:12:50,414 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 09:12:50,415 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 09:12:50,415 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-21 09:12:50,415 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-21 09:12:50,415 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 09:12:50,416 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 09:12:50,416 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 09:12:50,416 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-21 09:12:50,416 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64ea10b8-5b10-4f43-8fa2-c8c34f487951/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64ea10b8-5b10-4f43-8fa2-c8c34f487951/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3d776a54fbebbd358d59ab0126298feae1e40360b6fb5e6158cd54ba5ef877f7 [2022-11-21 09:12:50,849 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 09:12:50,889 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 09:12:50,895 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 09:12:50,896 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 09:12:50,897 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 09:12:50,899 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64ea10b8-5b10-4f43-8fa2-c8c34f487951/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/ldv-linux-3.7.3/main0_drivers-vhost-tcm_vhost-ko--32_7a--linux-3.7.3.i [2022-11-21 09:12:54,376 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 09:12:55,385 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 09:12:55,386 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64ea10b8-5b10-4f43-8fa2-c8c34f487951/sv-benchmarks/c/ldv-linux-3.7.3/main0_drivers-vhost-tcm_vhost-ko--32_7a--linux-3.7.3.i [2022-11-21 09:12:55,479 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64ea10b8-5b10-4f43-8fa2-c8c34f487951/bin/uautomizer-vX5HgA9Q3a/data/9c58873a4/97db8a03ce4a4b7cbe7a380c8299fb09/FLAGe038fece2 [2022-11-21 09:12:55,507 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_64ea10b8-5b10-4f43-8fa2-c8c34f487951/bin/uautomizer-vX5HgA9Q3a/data/9c58873a4/97db8a03ce4a4b7cbe7a380c8299fb09 [2022-11-21 09:12:55,514 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 09:12:55,516 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 09:12:55,520 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 09:12:55,520 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 09:12:55,525 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 09:12:55,526 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:12:55" (1/1) ... [2022-11-21 09:12:55,527 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f4c539c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:12:55, skipping insertion in model container [2022-11-21 09:12:55,528 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:12:55" (1/1) ... [2022-11-21 09:12:55,537 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 09:12:55,776 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 09:12:59,600 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: de.uni_freiburg.informatik.ultimate.boogie.typechecker.TypeCheckException: Type check failed for C: snprintf(page, 4096UL, "%s\n", (char *)(& ((tv_nexus->tvn_se_sess)->se_node_acl)->initiatorname)) [12438] at de.uni_freiburg.informatik.ultimate.boogie.TypeErrorReporter.report(TypeErrorReporter.java:52) at de.uni_freiburg.informatik.ultimate.boogie.typechecker.TypeCheckHelper.typeCheckBinaryExpression(TypeCheckHelper.java:207) at de.uni_freiburg.informatik.ultimate.boogie.ExpressionFactory.constructBinaryExpression(ExpressionFactory.java:617) at de.uni_freiburg.informatik.ultimate.boogie.ExpressionFactory.newBinaryExpression(ExpressionFactory.java:172) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleSnPrintF(StandardFunctionHandler.java:971) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.lambda$21(StandardFunctionHandler.java:305) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:242) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1463) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:267) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:728) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1413) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:220) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1087) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1087) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1489) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3314) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2388) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:600) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-21 09:12:59,611 INFO L158 Benchmark]: Toolchain (without parser) took 4093.45ms. Allocated memory was 88.1MB in the beginning and 113.2MB in the end (delta: 25.2MB). Free memory was 47.6MB in the beginning and 45.4MB in the end (delta: 2.2MB). Peak memory consumption was 35.2MB. Max. memory is 16.1GB. [2022-11-21 09:12:59,611 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 71.3MB. Free memory is still 49.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 09:12:59,612 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4087.92ms. Allocated memory was 88.1MB in the beginning and 113.2MB in the end (delta: 25.2MB). Free memory was 47.4MB in the beginning and 45.4MB in the end (delta: 2.0MB). Peak memory consumption was 35.2MB. Max. memory is 16.1GB. [2022-11-21 09:12:59,614 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 71.3MB. Free memory is still 49.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 4087.92ms. Allocated memory was 88.1MB in the beginning and 113.2MB in the end (delta: 25.2MB). Free memory was 47.4MB in the beginning and 45.4MB in the end (delta: 2.0MB). Peak memory consumption was 35.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: TypeCheckException: Type check failed for C: snprintf(page, 4096UL, "%s\n", (char *)(& ((tv_nexus->tvn_se_sess)->se_node_acl)->initiatorname)) [12438] de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: TypeCheckException: Type check failed for C: snprintf(page, 4096UL, "%s\n", (char *)(& ((tv_nexus->tvn_se_sess)->se_node_acl)->initiatorname)) [12438]: de.uni_freiburg.informatik.ultimate.boogie.TypeErrorReporter.report(TypeErrorReporter.java:52) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: TypeCheckException: Type check failed for C: snprintf(page, 4096UL, "%s\n", (char *)(& ((tv_nexus->tvn_se_sess)->se_node_acl)->initiatorname)) [12438]