./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-isdn-gigaset-gigaset.ko.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-isdn-gigaset-gigaset.ko.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/bin/uautomizer-DQz5hQGWxF --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 6344be269056834d180d9b5e1136d4ee678a64c336fe877230b0ca721a1da138 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 06:11:16,274 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 06:11:16,277 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 06:11:16,311 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 06:11:16,312 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 06:11:16,314 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 06:11:16,316 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 06:11:16,319 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 06:11:16,322 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 06:11:16,323 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 06:11:16,325 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 06:11:16,327 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 06:11:16,328 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 06:11:16,329 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 06:11:16,331 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 06:11:16,333 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 06:11:16,335 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 06:11:16,336 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 06:11:16,339 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 06:11:16,342 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 06:11:16,345 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 06:11:16,347 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 06:11:16,349 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 06:11:16,351 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 06:11:16,355 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 06:11:16,356 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 06:11:16,357 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 06:11:16,358 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 06:11:16,359 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 06:11:16,361 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 06:11:16,362 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 06:11:16,363 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 06:11:16,364 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 06:11:16,366 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 06:11:16,367 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 06:11:16,368 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 06:11:16,369 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 06:11:16,370 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 06:11:16,370 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 06:11:16,372 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 06:11:16,373 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 06:11:16,374 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-20 06:11:16,407 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 06:11:16,407 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 06:11:16,408 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 06:11:16,408 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 06:11:16,410 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 06:11:16,410 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 06:11:16,411 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 06:11:16,412 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 06:11:16,412 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 06:11:16,413 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 06:11:16,414 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 06:11:16,414 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 06:11:16,415 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 06:11:16,415 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 06:11:16,415 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 06:11:16,416 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 06:11:16,416 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 06:11:16,416 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 06:11:16,416 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 06:11:16,417 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 06:11:16,417 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 06:11:16,417 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 06:11:16,418 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 06:11:16,418 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 06:11:16,418 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 06:11:16,419 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 06:11:16,419 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 06:11:16,419 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-20 06:11:16,419 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-20 06:11:16,420 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 06:11:16,420 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 06:11:16,420 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_f874acd3-5635-46cd-898e-56f53c43013a/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6344be269056834d180d9b5e1136d4ee678a64c336fe877230b0ca721a1da138 [2021-11-20 06:11:16,768 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 06:11:16,824 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 06:11:16,829 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 06:11:16,831 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 06:11:16,832 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 06:11:16,834 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-isdn-gigaset-gigaset.ko.cil.out.i [2021-11-20 06:11:16,944 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/bin/uautomizer-DQz5hQGWxF/data/2561ff59a/8870c68cd923400bb9b209f8447cefd4/FLAGc2646fe85 [2021-11-20 06:11:18,333 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 06:11:18,334 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-isdn-gigaset-gigaset.ko.cil.out.i [2021-11-20 06:11:18,444 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/bin/uautomizer-DQz5hQGWxF/data/2561ff59a/8870c68cd923400bb9b209f8447cefd4/FLAGc2646fe85 [2021-11-20 06:11:18,881 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/bin/uautomizer-DQz5hQGWxF/data/2561ff59a/8870c68cd923400bb9b209f8447cefd4 [2021-11-20 06:11:18,884 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 06:11:18,886 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 06:11:18,888 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 06:11:18,888 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 06:11:18,893 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 06:11:18,894 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:11:18" (1/1) ... [2021-11-20 06:11:18,896 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79dca15c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:11:18, skipping insertion in model container [2021-11-20 06:11:18,896 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:11:18" (1/1) ... [2021-11-20 06:11:18,906 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 06:11:19,173 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 06:11:21,433 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-isdn-gigaset-gigaset.ko.cil.out.i[190502,190515] [2021-11-20 06:11:22,138 WARN L1533 CHandler]: Possible shadowing of function abort [2021-11-20 06:11:22,142 WARN L1533 CHandler]: Possible shadowing of function abort [2021-11-20 06:11:22,143 WARN L1533 CHandler]: Possible shadowing of function abort [2021-11-20 06:11:22,150 WARN L1533 CHandler]: Possible shadowing of function abort [2021-11-20 06:11:23,719 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:11:23,848 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 06:11:24,249 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-isdn-gigaset-gigaset.ko.cil.out.i[190502,190515] [2021-11-20 06:11:24,394 WARN L1533 CHandler]: Possible shadowing of function abort [2021-11-20 06:11:24,398 WARN L1533 CHandler]: Possible shadowing of function abort [2021-11-20 06:11:24,398 WARN L1533 CHandler]: Possible shadowing of function abort [2021-11-20 06:11:24,403 WARN L1533 CHandler]: Possible shadowing of function abort [2021-11-20 06:11:24,900 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:11:25,260 INFO L208 MainTranslator]: Completed translation [2021-11-20 06:11:25,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:11:25 WrapperNode [2021-11-20 06:11:25,261 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 06:11:25,262 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 06:11:25,263 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 06:11:25,263 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 06:11:25,272 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:11:25" (1/1) ... [2021-11-20 06:11:25,539 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:11:25" (1/1) ... [2021-11-20 06:11:25,780 INFO L137 Inliner]: procedures = 352, calls = 6445, calls flagged for inlining = 152, calls inlined = 32, statements flattened = 4275 [2021-11-20 06:11:25,781 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 06:11:25,783 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 06:11:25,783 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 06:11:25,783 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 06:11:25,795 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:11:25" (1/1) ... [2021-11-20 06:11:25,795 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:11:25" (1/1) ... [2021-11-20 06:11:25,826 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:11:25" (1/1) ... [2021-11-20 06:11:25,826 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:11:25" (1/1) ... [2021-11-20 06:11:25,939 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:11:25" (1/1) ... [2021-11-20 06:11:25,967 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:11:25" (1/1) ... [2021-11-20 06:11:25,992 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:11:25" (1/1) ... [2021-11-20 06:11:26,028 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 06:11:26,033 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 06:11:26,033 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 06:11:26,033 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 06:11:26,034 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:11:25" (1/1) ... [2021-11-20 06:11:26,043 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 06:11:26,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:11:26,073 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 06:11:26,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 06:11:26,125 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_schedule_event [2021-11-20 06:11:26,126 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_schedule_event [2021-11-20 06:11:26,126 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2021-11-20 06:11:26,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2021-11-20 06:11:26,126 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-11-20 06:11:26,126 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-20 06:11:26,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-20 06:11:26,127 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_add_event [2021-11-20 06:11:26,127 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_add_event [2021-11-20 06:11:26,127 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-11-20 06:11:26,127 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-11-20 06:11:26,127 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-20 06:11:26,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-20 06:11:26,128 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2021-11-20 06:11:26,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2021-11-20 06:11:26,128 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_3 [2021-11-20 06:11:26,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_3 [2021-11-20 06:11:26,129 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2021-11-20 06:11:26,129 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2021-11-20 06:11:26,129 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-20 06:11:26,129 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-20 06:11:26,129 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_dbg_buffer [2021-11-20 06:11:26,129 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_dbg_buffer [2021-11-20 06:11:26,130 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-20 06:11:26,130 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-20 06:11:26,130 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_enterconfigmode [2021-11-20 06:11:26,130 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_enterconfigmode [2021-11-20 06:11:26,130 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 06:11:26,130 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-20 06:11:26,131 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-20 06:11:26,131 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-20 06:11:26,131 INFO L130 BoogieDeclarations]: Found specification of procedure if_ioctl [2021-11-20 06:11:26,132 INFO L138 BoogieDeclarations]: Found implementation of procedure if_ioctl [2021-11-20 06:11:26,132 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2021-11-20 06:11:26,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2021-11-20 06:11:26,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 06:11:26,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-20 06:11:26,133 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-11-20 06:11:26,133 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-11-20 06:11:26,133 INFO L130 BoogieDeclarations]: Found specification of procedure if_tiocmget [2021-11-20 06:11:26,133 INFO L138 BoogieDeclarations]: Found implementation of procedure if_tiocmget [2021-11-20 06:11:26,133 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-20 06:11:26,134 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-20 06:11:26,134 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-11-20 06:11:26,134 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-11-20 06:11:26,134 INFO L130 BoogieDeclarations]: Found specification of procedure if_config [2021-11-20 06:11:26,135 INFO L138 BoogieDeclarations]: Found implementation of procedure if_config [2021-11-20 06:11:26,135 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-11-20 06:11:26,135 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-11-20 06:11:26,136 INFO L130 BoogieDeclarations]: Found specification of procedure if_chars_in_buffer [2021-11-20 06:11:26,137 INFO L138 BoogieDeclarations]: Found implementation of procedure if_chars_in_buffer [2021-11-20 06:11:26,137 INFO L130 BoogieDeclarations]: Found specification of procedure if_write_room [2021-11-20 06:11:26,138 INFO L138 BoogieDeclarations]: Found implementation of procedure if_write_room [2021-11-20 06:11:26,138 INFO L130 BoogieDeclarations]: Found specification of procedure if_lock [2021-11-20 06:11:26,138 INFO L138 BoogieDeclarations]: Found implementation of procedure if_lock [2021-11-20 06:11:26,138 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-20 06:11:26,138 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-20 06:11:26,139 INFO L130 BoogieDeclarations]: Found specification of procedure if_throttle [2021-11-20 06:11:26,139 INFO L138 BoogieDeclarations]: Found implementation of procedure if_throttle [2021-11-20 06:11:26,140 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2021-11-20 06:11:26,140 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2021-11-20 06:11:26,140 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-20 06:11:26,140 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-11-20 06:11:26,140 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-11-20 06:11:26,140 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get_1 [2021-11-20 06:11:26,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get_1 [2021-11-20 06:11:26,141 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2021-11-20 06:11:26,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2021-11-20 06:11:26,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-20 06:11:26,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 06:11:26,142 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-20 06:11:26,142 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-20 06:11:26,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 06:11:26,143 INFO L130 BoogieDeclarations]: Found specification of procedure single_release [2021-11-20 06:11:26,143 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-20 06:11:26,143 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-11-20 06:11:26,143 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-11-20 06:11:26,143 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 06:11:26,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-20 06:11:26,144 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-20 06:11:26,144 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-20 06:11:26,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-20 06:11:26,145 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2021-11-20 06:11:26,145 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2021-11-20 06:11:26,146 INFO L130 BoogieDeclarations]: Found specification of procedure if_tiocmset [2021-11-20 06:11:26,146 INFO L138 BoogieDeclarations]: Found implementation of procedure if_tiocmset [2021-11-20 06:11:26,146 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2021-11-20 06:11:26,146 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2021-11-20 06:11:26,147 INFO L130 BoogieDeclarations]: Found specification of procedure if_open [2021-11-20 06:11:26,147 INFO L138 BoogieDeclarations]: Found implementation of procedure if_open [2021-11-20 06:11:26,147 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-20 06:11:26,148 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-20 06:11:26,148 INFO L130 BoogieDeclarations]: Found specification of procedure setflags [2021-11-20 06:11:26,148 INFO L138 BoogieDeclarations]: Found implementation of procedure setflags [2021-11-20 06:11:26,148 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-20 06:11:26,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-20 06:11:26,148 INFO L130 BoogieDeclarations]: Found specification of procedure if_unthrottle [2021-11-20 06:11:26,149 INFO L138 BoogieDeclarations]: Found implementation of procedure if_unthrottle [2021-11-20 06:11:26,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 06:11:26,149 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2021-11-20 06:11:26,149 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2021-11-20 06:11:26,149 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 06:11:26,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 06:11:26,150 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-11-20 06:11:26,150 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-11-20 06:11:26,673 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 06:11:26,678 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 06:11:27,270 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2021-11-20 06:11:27,270 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2021-11-20 06:11:27,376 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-20 06:11:27,387 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-20 06:11:27,638 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##76: assume !false;call ULTIMATE.dealloc(if_version_~#version~0#1.base, if_version_~#version~0#1.offset);havoc if_version_~#version~0#1.base, if_version_~#version~0#1.offset;call ULTIMATE.dealloc(if_version_~#compat~0#1.base, if_version_~#compat~0#1.offset);havoc if_version_~#compat~0#1.base, if_version_~#compat~0#1.offset;call ULTIMATE.dealloc(if_version_~#__wait~4#1.base, if_version_~#__wait~4#1.offset);havoc if_version_~#__wait~4#1.base, if_version_~#__wait~4#1.offset; [2021-11-20 06:11:27,638 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##75: assume false; [2021-11-20 06:11:27,639 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##53: assume !false; [2021-11-20 06:11:27,639 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##52: assume false; [2021-11-20 06:11:27,639 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##43: assume false; [2021-11-20 06:11:27,639 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##44: assume !false; [2021-11-20 06:11:27,639 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##39: assume !false; [2021-11-20 06:11:27,640 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##38: assume false; [2021-11-20 06:11:27,640 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##30: assume !false; [2021-11-20 06:11:27,640 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##29: assume false; [2021-11-20 06:11:27,640 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##26: assume !false; [2021-11-20 06:11:27,640 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##25: assume false; [2021-11-20 06:11:27,801 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##8: assume !false; [2021-11-20 06:11:27,801 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##7: assume false; [2021-11-20 06:11:27,802 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5012-1: ~tmp~4#1.base, ~tmp~4#1.offset := #t~ret76#1.base, #t~ret76#1.offset;havoc #t~ret76#1.base, #t~ret76#1.offset;~__ptr~0#1.base, ~__ptr~0#1.offset := ~tmp~4#1.base, ~tmp~4#1.offset; [2021-11-20 06:11:27,802 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5012: SUMMARY for call #t~ret76#1.base, #t~ret76#1.offset := get_current(); srcloc: null [2021-11-20 06:11:27,804 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-20 06:11:27,805 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-20 06:11:27,807 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-20 06:11:27,919 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##26: assume !false; [2021-11-20 06:11:27,919 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##25: assume false; [2021-11-20 06:11:27,920 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##61: assume false; [2021-11-20 06:11:27,920 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##62: assume !false; [2021-11-20 06:11:27,920 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##41: assume !false; [2021-11-20 06:11:27,920 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##40: assume false; [2021-11-20 06:11:28,155 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-20 06:12:42,136 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##24: assume !false; [2021-11-20 06:12:42,137 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##23: assume false; [2021-11-20 06:12:42,160 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 06:12:42,177 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 06:12:42,178 INFO L301 CfgBuilder]: Removed 6 assume(true) statements. [2021-11-20 06:12:42,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:12:42 BoogieIcfgContainer [2021-11-20 06:12:42,182 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 06:12:42,183 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 06:12:42,184 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 06:12:42,187 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 06:12:42,187 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 06:11:18" (1/3) ... [2021-11-20 06:12:42,188 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ff81402 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:12:42, skipping insertion in model container [2021-11-20 06:12:42,188 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:11:25" (2/3) ... [2021-11-20 06:12:42,189 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ff81402 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:12:42, skipping insertion in model container [2021-11-20 06:12:42,189 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:12:42" (3/3) ... [2021-11-20 06:12:42,190 INFO L111 eAbstractionObserver]: Analyzing ICFG module_get_put-drivers-isdn-gigaset-gigaset.ko.cil.out.i [2021-11-20 06:12:42,196 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 06:12:42,196 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 06:12:42,252 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 06:12:42,259 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-20 06:12:42,259 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-20 06:12:42,315 INFO L276 IsEmpty]: Start isEmpty. Operand has 662 states, 501 states have (on average 1.405189620758483) internal successors, (704), 514 states have internal predecessors, (704), 117 states have call successors, (117), 43 states have call predecessors, (117), 43 states have return successors, (117), 116 states have call predecessors, (117), 117 states have call successors, (117) [2021-11-20 06:12:42,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-20 06:12:42,334 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:12:42,335 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:12:42,336 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:12:42,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:12:42,352 INFO L85 PathProgramCache]: Analyzing trace with hash -1164007444, now seen corresponding path program 1 times [2021-11-20 06:12:42,362 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:12:42,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334576451] [2021-11-20 06:12:42,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:12:42,364 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:12:43,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:12:43,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:12:43,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:12:43,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-20 06:12:43,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:12:43,416 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-20 06:12:43,417 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:12:43,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334576451] [2021-11-20 06:12:43,418 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334576451] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:12:43,418 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:12:43,418 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 06:12:43,420 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594999689] [2021-11-20 06:12:43,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:12:43,424 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 06:12:43,425 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:12:43,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 06:12:43,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 06:12:43,457 INFO L87 Difference]: Start difference. First operand has 662 states, 501 states have (on average 1.405189620758483) internal successors, (704), 514 states have internal predecessors, (704), 117 states have call successors, (117), 43 states have call predecessors, (117), 43 states have return successors, (117), 116 states have call predecessors, (117), 117 states have call successors, (117) Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-20 06:12:45,016 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:12:47,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:12:47,129 INFO L93 Difference]: Finished difference Result 2166 states and 3205 transitions. [2021-11-20 06:12:47,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 06:12:47,132 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2021-11-20 06:12:47,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:12:47,177 INFO L225 Difference]: With dead ends: 2166 [2021-11-20 06:12:47,178 INFO L226 Difference]: Without dead ends: 1501 [2021-11-20 06:12:47,191 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:12:47,200 INFO L933 BasicCegarLoop]: 1027 mSDtfsCounter, 1607 mSDsluCounter, 1146 mSDsCounter, 0 mSdLazyCounter, 571 mSolverCounterSat, 406 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1697 SdHoareTripleChecker+Valid, 2173 SdHoareTripleChecker+Invalid, 977 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 406 IncrementalHoareTripleChecker+Valid, 571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2021-11-20 06:12:47,202 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1697 Valid, 2173 Invalid, 977 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [406 Valid, 571 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2021-11-20 06:12:47,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1501 states. [2021-11-20 06:12:47,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1501 to 1392. [2021-11-20 06:12:47,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1392 states, 1063 states have (on average 1.3904045155221072) internal successors, (1478), 1087 states have internal predecessors, (1478), 237 states have call successors, (237), 85 states have call predecessors, (237), 91 states have return successors, (282), 239 states have call predecessors, (282), 235 states have call successors, (282) [2021-11-20 06:12:47,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1392 states to 1392 states and 1997 transitions. [2021-11-20 06:12:47,444 INFO L78 Accepts]: Start accepts. Automaton has 1392 states and 1997 transitions. Word has length 22 [2021-11-20 06:12:47,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:12:47,445 INFO L470 AbstractCegarLoop]: Abstraction has 1392 states and 1997 transitions. [2021-11-20 06:12:47,445 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-20 06:12:47,446 INFO L276 IsEmpty]: Start isEmpty. Operand 1392 states and 1997 transitions. [2021-11-20 06:12:47,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-20 06:12:47,460 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:12:47,460 INFO L514 BasicCegarLoop]: 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] [2021-11-20 06:12:47,461 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 06:12:47,461 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:12:47,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:12:47,462 INFO L85 PathProgramCache]: Analyzing trace with hash 1727764396, now seen corresponding path program 1 times [2021-11-20 06:12:47,462 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:12:47,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069497456] [2021-11-20 06:12:47,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:12:47,464 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:12:47,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:12:47,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:12:47,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:12:47,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-20 06:12:47,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:12:48,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-20 06:12:48,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:12:48,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-11-20 06:12:48,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:12:48,055 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-20 06:12:48,058 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:12:48,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069497456] [2021-11-20 06:12:48,058 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069497456] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:12:48,058 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:12:48,059 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 06:12:48,059 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476935008] [2021-11-20 06:12:48,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:12:48,060 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 06:12:48,060 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:12:48,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 06:12:48,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 06:12:48,061 INFO L87 Difference]: Start difference. First operand 1392 states and 1997 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-20 06:12:49,769 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:12:51,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:12:51,174 INFO L93 Difference]: Finished difference Result 3053 states and 4444 transitions. [2021-11-20 06:12:51,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 06:12:51,175 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 42 [2021-11-20 06:12:51,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:12:51,197 INFO L225 Difference]: With dead ends: 3053 [2021-11-20 06:12:51,198 INFO L226 Difference]: Without dead ends: 1667 [2021-11-20 06:12:51,214 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 06:12:51,217 INFO L933 BasicCegarLoop]: 940 mSDtfsCounter, 483 mSDsluCounter, 1094 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 151 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 547 SdHoareTripleChecker+Valid, 2034 SdHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 151 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2021-11-20 06:12:51,218 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [547 Valid, 2034 Invalid, 617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [151 Valid, 466 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2021-11-20 06:12:51,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1667 states. [2021-11-20 06:12:51,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1667 to 1561. [2021-11-20 06:12:51,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1561 states, 1196 states have (on average 1.4030100334448161) internal successors, (1678), 1226 states have internal predecessors, (1678), 273 states have call successors, (273), 85 states have call predecessors, (273), 91 states have return successors, (327), 273 states have call predecessors, (327), 271 states have call successors, (327) [2021-11-20 06:12:51,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1561 states to 1561 states and 2278 transitions. [2021-11-20 06:12:51,351 INFO L78 Accepts]: Start accepts. Automaton has 1561 states and 2278 transitions. Word has length 42 [2021-11-20 06:12:51,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:12:51,351 INFO L470 AbstractCegarLoop]: Abstraction has 1561 states and 2278 transitions. [2021-11-20 06:12:51,352 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-20 06:12:51,352 INFO L276 IsEmpty]: Start isEmpty. Operand 1561 states and 2278 transitions. [2021-11-20 06:12:51,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-20 06:12:51,358 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:12:51,358 INFO L514 BasicCegarLoop]: 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] [2021-11-20 06:12:51,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 06:12:51,359 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:12:51,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:12:51,360 INFO L85 PathProgramCache]: Analyzing trace with hash 2016306839, now seen corresponding path program 1 times [2021-11-20 06:12:51,360 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:12:51,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140360504] [2021-11-20 06:12:51,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:12:51,364 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:12:51,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:12:51,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:12:51,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:12:51,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-20 06:12:51,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:12:51,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-11-20 06:12:51,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:12:51,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-11-20 06:12:51,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:12:51,981 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-20 06:12:51,981 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:12:51,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140360504] [2021-11-20 06:12:51,983 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140360504] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:12:51,983 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:12:51,983 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-20 06:12:51,984 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329403481] [2021-11-20 06:12:51,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:12:51,985 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-20 06:12:51,985 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:12:51,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-20 06:12:51,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-20 06:12:51,986 INFO L87 Difference]: Start difference. First operand 1561 states and 2278 transitions. Second operand has 8 states, 8 states have (on average 4.125) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-20 06:12:53,734 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:12:57,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:12:57,431 INFO L93 Difference]: Finished difference Result 3311 states and 4968 transitions. [2021-11-20 06:12:57,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-20 06:12:57,432 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 47 [2021-11-20 06:12:57,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:12:57,448 INFO L225 Difference]: With dead ends: 3311 [2021-11-20 06:12:57,448 INFO L226 Difference]: Without dead ends: 1757 [2021-11-20 06:12:57,458 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2021-11-20 06:12:57,461 INFO L933 BasicCegarLoop]: 882 mSDtfsCounter, 1018 mSDsluCounter, 3072 mSDsCounter, 0 mSdLazyCounter, 1891 mSolverCounterSat, 396 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1056 SdHoareTripleChecker+Valid, 3954 SdHoareTripleChecker+Invalid, 2287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 396 IncrementalHoareTripleChecker+Valid, 1891 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2021-11-20 06:12:57,462 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1056 Valid, 3954 Invalid, 2287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [396 Valid, 1891 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2021-11-20 06:12:57,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1757 states. [2021-11-20 06:12:57,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1757 to 1543. [2021-11-20 06:12:57,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1170 states have (on average 1.3974358974358974) internal successors, (1635), 1199 states have internal predecessors, (1635), 278 states have call successors, (278), 85 states have call predecessors, (278), 94 states have return successors, (337), 284 states have call predecessors, (337), 276 states have call successors, (337) [2021-11-20 06:12:57,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2250 transitions. [2021-11-20 06:12:57,554 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2250 transitions. Word has length 47 [2021-11-20 06:12:57,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:12:57,554 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2250 transitions. [2021-11-20 06:12:57,554 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-20 06:12:57,555 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2250 transitions. [2021-11-20 06:12:57,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-20 06:12:57,557 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:12:57,557 INFO L514 BasicCegarLoop]: 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] [2021-11-20 06:12:57,558 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-20 06:12:57,558 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:12:57,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:12:57,559 INFO L85 PathProgramCache]: Analyzing trace with hash -2124098365, now seen corresponding path program 1 times [2021-11-20 06:12:57,559 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:12:57,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696610542] [2021-11-20 06:12:57,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:12:57,559 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:12:57,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:12:57,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:12:57,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:12:57,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-20 06:12:57,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:12:57,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-20 06:12:57,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:12:58,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:12:58,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:12:58,066 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-20 06:12:58,067 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:12:58,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696610542] [2021-11-20 06:12:58,067 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696610542] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:12:58,068 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:12:58,068 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-20 06:12:58,068 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639181791] [2021-11-20 06:12:58,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:12:58,069 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-20 06:12:58,069 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:12:58,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-20 06:12:58,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-11-20 06:12:58,070 INFO L87 Difference]: Start difference. First operand 1543 states and 2250 transitions. Second operand has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 5 states have internal predecessors, (34), 2 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 1 states have call successors, (4) [2021-11-20 06:12:59,748 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:13:01,762 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:13:03,774 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:13:07,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:13:07,932 INFO L93 Difference]: Finished difference Result 2705 states and 4086 transitions. [2021-11-20 06:13:07,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-20 06:13:07,933 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 5 states have internal predecessors, (34), 2 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 1 states have call successors, (4) Word has length 46 [2021-11-20 06:13:07,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:13:07,949 INFO L225 Difference]: With dead ends: 2705 [2021-11-20 06:13:07,950 INFO L226 Difference]: Without dead ends: 1879 [2021-11-20 06:13:07,955 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2021-11-20 06:13:07,956 INFO L933 BasicCegarLoop]: 821 mSDtfsCounter, 1069 mSDsluCounter, 3158 mSDsCounter, 0 mSdLazyCounter, 2517 mSolverCounterSat, 461 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1109 SdHoareTripleChecker+Valid, 3979 SdHoareTripleChecker+Invalid, 2980 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 461 IncrementalHoareTripleChecker+Valid, 2517 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2021-11-20 06:13:07,957 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1109 Valid, 3979 Invalid, 2980 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [461 Valid, 2517 Invalid, 2 Unknown, 0 Unchecked, 9.6s Time] [2021-11-20 06:13:07,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1879 states. [2021-11-20 06:13:08,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1879 to 1543. [2021-11-20 06:13:08,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1543 states, 1170 states have (on average 1.3965811965811965) internal successors, (1634), 1199 states have internal predecessors, (1634), 278 states have call successors, (278), 85 states have call predecessors, (278), 94 states have return successors, (337), 284 states have call predecessors, (337), 276 states have call successors, (337) [2021-11-20 06:13:08,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2249 transitions. [2021-11-20 06:13:08,055 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2249 transitions. Word has length 46 [2021-11-20 06:13:08,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:13:08,055 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2249 transitions. [2021-11-20 06:13:08,055 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 5 states have internal predecessors, (34), 2 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 1 states have call successors, (4) [2021-11-20 06:13:08,056 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2249 transitions. [2021-11-20 06:13:08,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-20 06:13:08,058 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:13:08,058 INFO L514 BasicCegarLoop]: 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] [2021-11-20 06:13:08,059 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-20 06:13:08,059 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:13:08,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:13:08,059 INFO L85 PathProgramCache]: Analyzing trace with hash 436135357, now seen corresponding path program 1 times [2021-11-20 06:13:08,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:13:08,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155936348] [2021-11-20 06:13:08,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:13:08,060 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:13:08,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:13:08,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:13:08,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:13:08,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-20 06:13:08,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:13:08,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-11-20 06:13:08,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:13:08,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-20 06:13:08,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:13:08,506 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-20 06:13:08,507 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:13:08,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155936348] [2021-11-20 06:13:08,507 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155936348] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:13:08,507 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:13:08,507 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-20 06:13:08,508 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90678438] [2021-11-20 06:13:08,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:13:08,508 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 06:13:08,508 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:13:08,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 06:13:08,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-20 06:13:08,509 INFO L87 Difference]: Start difference. First operand 1543 states and 2249 transitions. Second operand has 7 states, 7 states have (on average 5.0) internal successors, (35), 6 states have internal predecessors, (35), 3 states have call successors, (7), 6 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-20 06:13:10,658 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:13:12,685 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:13:13,806 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:13:19,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:13:19,719 INFO L93 Difference]: Finished difference Result 2773 states and 4194 transitions. [2021-11-20 06:13:19,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-20 06:13:19,720 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 6 states have internal predecessors, (35), 3 states have call successors, (7), 6 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 49 [2021-11-20 06:13:19,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:13:19,744 INFO L225 Difference]: With dead ends: 2773 [2021-11-20 06:13:19,744 INFO L226 Difference]: Without dead ends: 2770 [2021-11-20 06:13:19,747 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2021-11-20 06:13:19,748 INFO L933 BasicCegarLoop]: 2026 mSDtfsCounter, 3725 mSDsluCounter, 4051 mSDsCounter, 0 mSdLazyCounter, 4422 mSolverCounterSat, 1621 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3807 SdHoareTripleChecker+Valid, 6077 SdHoareTripleChecker+Invalid, 6044 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1621 IncrementalHoareTripleChecker+Valid, 4422 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2021-11-20 06:13:19,748 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3807 Valid, 6077 Invalid, 6044 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1621 Valid, 4422 Invalid, 1 Unknown, 0 Unchecked, 10.8s Time] [2021-11-20 06:13:19,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2770 states. [2021-11-20 06:13:19,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2770 to 2366. [2021-11-20 06:13:19,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2366 states, 1790 states have (on average 1.393854748603352) internal successors, (2495), 1833 states have internal predecessors, (2495), 427 states have call successors, (427), 127 states have call predecessors, (427), 148 states have return successors, (584), 445 states have call predecessors, (584), 425 states have call successors, (584) [2021-11-20 06:13:19,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2366 states to 2366 states and 3506 transitions. [2021-11-20 06:13:19,888 INFO L78 Accepts]: Start accepts. Automaton has 2366 states and 3506 transitions. Word has length 49 [2021-11-20 06:13:19,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:13:19,889 INFO L470 AbstractCegarLoop]: Abstraction has 2366 states and 3506 transitions. [2021-11-20 06:13:19,889 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 6 states have internal predecessors, (35), 3 states have call successors, (7), 6 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-20 06:13:19,889 INFO L276 IsEmpty]: Start isEmpty. Operand 2366 states and 3506 transitions. [2021-11-20 06:13:19,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-20 06:13:19,893 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:13:19,893 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:13:19,893 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-20 06:13:19,894 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:13:19,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:13:19,894 INFO L85 PathProgramCache]: Analyzing trace with hash -419613441, now seen corresponding path program 1 times [2021-11-20 06:13:19,895 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:13:19,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023901910] [2021-11-20 06:13:19,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:13:19,895 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:13:20,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:13:20,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:13:20,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:13:20,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-20 06:13:20,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:13:20,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-20 06:13:20,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:13:20,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-11-20 06:13:20,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:13:20,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-11-20 06:13:20,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:13:20,381 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-20 06:13:20,381 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:13:20,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023901910] [2021-11-20 06:13:20,381 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023901910] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:13:20,381 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:13:20,382 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-20 06:13:20,382 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332305943] [2021-11-20 06:13:20,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:13:20,383 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 06:13:20,384 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:13:20,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 06:13:20,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-20 06:13:20,385 INFO L87 Difference]: Start difference. First operand 2366 states and 3506 transitions. Second operand has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (8), 4 states have call predecessors, (8), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-20 06:13:22,535 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:13:23,789 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:13:26,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:13:26,567 INFO L93 Difference]: Finished difference Result 5122 states and 7675 transitions. [2021-11-20 06:13:26,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-20 06:13:26,568 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (8), 4 states have call predecessors, (8), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 59 [2021-11-20 06:13:26,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:13:26,594 INFO L225 Difference]: With dead ends: 5122 [2021-11-20 06:13:26,595 INFO L226 Difference]: Without dead ends: 2760 [2021-11-20 06:13:26,609 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-20 06:13:26,609 INFO L933 BasicCegarLoop]: 826 mSDtfsCounter, 866 mSDsluCounter, 2381 mSDsCounter, 0 mSdLazyCounter, 1734 mSolverCounterSat, 342 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 893 SdHoareTripleChecker+Valid, 3207 SdHoareTripleChecker+Invalid, 2077 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 342 IncrementalHoareTripleChecker+Valid, 1734 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2021-11-20 06:13:26,610 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [893 Valid, 3207 Invalid, 2077 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [342 Valid, 1734 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2021-11-20 06:13:26,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2760 states. [2021-11-20 06:13:26,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2760 to 2256. [2021-11-20 06:13:26,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2256 states, 1706 states have (on average 1.388042203985932) internal successors, (2368), 1746 states have internal predecessors, (2368), 402 states have call successors, (402), 125 states have call predecessors, (402), 147 states have return successors, (550), 421 states have call predecessors, (550), 400 states have call successors, (550) [2021-11-20 06:13:26,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2256 states to 2256 states and 3320 transitions. [2021-11-20 06:13:26,815 INFO L78 Accepts]: Start accepts. Automaton has 2256 states and 3320 transitions. Word has length 59 [2021-11-20 06:13:26,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:13:26,815 INFO L470 AbstractCegarLoop]: Abstraction has 2256 states and 3320 transitions. [2021-11-20 06:13:26,816 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (8), 4 states have call predecessors, (8), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2021-11-20 06:13:26,816 INFO L276 IsEmpty]: Start isEmpty. Operand 2256 states and 3320 transitions. [2021-11-20 06:13:26,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-20 06:13:26,819 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:13:26,819 INFO L514 BasicCegarLoop]: 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] [2021-11-20 06:13:26,819 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-20 06:13:26,820 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:13:26,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:13:26,820 INFO L85 PathProgramCache]: Analyzing trace with hash -1575982952, now seen corresponding path program 1 times [2021-11-20 06:13:26,820 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:13:26,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182759915] [2021-11-20 06:13:26,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:13:26,821 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:13:27,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:13:27,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:13:27,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:13:27,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-20 06:13:27,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:13:27,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-20 06:13:27,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:13:27,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:13:27,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:13:27,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-20 06:13:27,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:13:27,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-20 06:13:27,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:13:27,368 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-20 06:13:27,369 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:13:27,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182759915] [2021-11-20 06:13:27,369 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182759915] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:13:27,369 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:13:27,370 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-20 06:13:27,370 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66985182] [2021-11-20 06:13:27,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:13:27,370 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-20 06:13:27,371 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:13:27,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-20 06:13:27,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-20 06:13:27,372 INFO L87 Difference]: Start difference. First operand 2256 states and 3320 transitions. Second operand has 8 states, 8 states have (on average 5.25) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (7), 5 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2021-11-20 06:13:29,001 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:13:31,014 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:13:32,026 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:13:34,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:13:34,935 INFO L93 Difference]: Finished difference Result 3035 states and 4687 transitions. [2021-11-20 06:13:34,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-20 06:13:34,936 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (7), 5 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 58 [2021-11-20 06:13:34,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:13:34,960 INFO L225 Difference]: With dead ends: 3035 [2021-11-20 06:13:34,960 INFO L226 Difference]: Without dead ends: 3030 [2021-11-20 06:13:34,963 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-11-20 06:13:34,964 INFO L933 BasicCegarLoop]: 958 mSDtfsCounter, 1190 mSDsluCounter, 3110 mSDsCounter, 0 mSdLazyCounter, 2175 mSolverCounterSat, 461 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1278 SdHoareTripleChecker+Valid, 4068 SdHoareTripleChecker+Invalid, 2637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 461 IncrementalHoareTripleChecker+Valid, 2175 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2021-11-20 06:13:34,964 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1278 Valid, 4068 Invalid, 2637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [461 Valid, 2175 Invalid, 1 Unknown, 0 Unchecked, 7.4s Time] [2021-11-20 06:13:34,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3030 states. [2021-11-20 06:13:35,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3030 to 2266. [2021-11-20 06:13:35,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2266 states, 1714 states have (on average 1.3862310385064178) internal successors, (2376), 1754 states have internal predecessors, (2376), 402 states have call successors, (402), 125 states have call predecessors, (402), 149 states have return successors, (556), 423 states have call predecessors, (556), 400 states have call successors, (556) [2021-11-20 06:13:35,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2266 states to 2266 states and 3334 transitions. [2021-11-20 06:13:35,105 INFO L78 Accepts]: Start accepts. Automaton has 2266 states and 3334 transitions. Word has length 58 [2021-11-20 06:13:35,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:13:35,106 INFO L470 AbstractCegarLoop]: Abstraction has 2266 states and 3334 transitions. [2021-11-20 06:13:35,106 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (7), 5 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2021-11-20 06:13:35,107 INFO L276 IsEmpty]: Start isEmpty. Operand 2266 states and 3334 transitions. [2021-11-20 06:13:35,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-20 06:13:35,109 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:13:35,109 INFO L514 BasicCegarLoop]: 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] [2021-11-20 06:13:35,110 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-20 06:13:35,110 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:13:35,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:13:35,110 INFO L85 PathProgramCache]: Analyzing trace with hash 669939408, now seen corresponding path program 1 times [2021-11-20 06:13:35,111 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:13:35,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409999352] [2021-11-20 06:13:35,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:13:35,111 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:13:35,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:13:35,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:13:35,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:13:35,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-20 06:13:35,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:13:35,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-20 06:13:35,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:13:35,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-20 06:13:35,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:13:35,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-20 06:13:35,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:13:35,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-20 06:13:35,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:13:35,582 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-20 06:13:35,583 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:13:35,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409999352] [2021-11-20 06:13:35,583 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409999352] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:13:35,583 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:13:35,583 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-20 06:13:35,584 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567241310] [2021-11-20 06:13:35,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:13:35,584 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 06:13:35,584 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:13:35,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 06:13:35,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-20 06:13:35,585 INFO L87 Difference]: Start difference. First operand 2266 states and 3334 transitions. Second operand has 7 states, 7 states have (on average 6.0) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (7), 5 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-11-20 06:13:36,979 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:13:38,622 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:13:42,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:13:42,234 INFO L93 Difference]: Finished difference Result 5122 states and 7969 transitions. [2021-11-20 06:13:42,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-20 06:13:42,235 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (7), 5 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 58 [2021-11-20 06:13:42,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:13:42,256 INFO L225 Difference]: With dead ends: 5122 [2021-11-20 06:13:42,256 INFO L226 Difference]: Without dead ends: 2863 [2021-11-20 06:13:42,270 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2021-11-20 06:13:42,271 INFO L933 BasicCegarLoop]: 803 mSDtfsCounter, 1072 mSDsluCounter, 1943 mSDsCounter, 0 mSdLazyCounter, 1627 mSolverCounterSat, 455 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1119 SdHoareTripleChecker+Valid, 2746 SdHoareTripleChecker+Invalid, 2082 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 455 IncrementalHoareTripleChecker+Valid, 1627 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2021-11-20 06:13:42,271 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1119 Valid, 2746 Invalid, 2082 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [455 Valid, 1627 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2021-11-20 06:13:42,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2863 states. [2021-11-20 06:13:42,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2863 to 2272. [2021-11-20 06:13:42,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2272 states, 1720 states have (on average 1.3848837209302325) internal successors, (2382), 1760 states have internal predecessors, (2382), 402 states have call successors, (402), 125 states have call predecessors, (402), 149 states have return successors, (556), 423 states have call predecessors, (556), 400 states have call successors, (556) [2021-11-20 06:13:42,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2272 states to 2272 states and 3340 transitions. [2021-11-20 06:13:42,414 INFO L78 Accepts]: Start accepts. Automaton has 2272 states and 3340 transitions. Word has length 58 [2021-11-20 06:13:42,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:13:42,415 INFO L470 AbstractCegarLoop]: Abstraction has 2272 states and 3340 transitions. [2021-11-20 06:13:42,415 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (7), 5 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-11-20 06:13:42,415 INFO L276 IsEmpty]: Start isEmpty. Operand 2272 states and 3340 transitions. [2021-11-20 06:13:42,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-20 06:13:42,420 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:13:42,420 INFO L514 BasicCegarLoop]: 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, 1, 1] [2021-11-20 06:13:42,420 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-20 06:13:42,421 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:13:42,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:13:42,421 INFO L85 PathProgramCache]: Analyzing trace with hash -298738899, now seen corresponding path program 1 times [2021-11-20 06:13:42,421 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:13:42,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218852262] [2021-11-20 06:13:42,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:13:42,422 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:13:42,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:13:42,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:13:42,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:13:42,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-20 06:13:42,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:13:42,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-20 06:13:42,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:13:42,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-20 06:13:42,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:13:42,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 06:13:42,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:13:42,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-20 06:13:42,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:13:42,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 06:13:42,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:13:43,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-11-20 06:13:43,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:13:43,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-11-20 06:13:43,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:13:43,018 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-20 06:13:43,019 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:13:43,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218852262] [2021-11-20 06:13:43,019 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218852262] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:13:43,019 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:13:43,019 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-20 06:13:43,019 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362743549] [2021-11-20 06:13:43,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:13:43,020 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-20 06:13:43,020 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:13:43,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-20 06:13:43,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-11-20 06:13:43,021 INFO L87 Difference]: Start difference. First operand 2272 states and 3340 transitions. Second operand has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (10), 5 states have call predecessors, (10), 2 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2021-11-20 06:13:44,781 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:13:47,195 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:13:50,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:13:50,163 INFO L93 Difference]: Finished difference Result 5179 states and 8052 transitions. [2021-11-20 06:13:50,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-20 06:13:50,163 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (10), 5 states have call predecessors, (10), 2 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 77 [2021-11-20 06:13:50,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:13:50,185 INFO L225 Difference]: With dead ends: 5179 [2021-11-20 06:13:50,185 INFO L226 Difference]: Without dead ends: 2914 [2021-11-20 06:13:50,199 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2021-11-20 06:13:50,199 INFO L933 BasicCegarLoop]: 817 mSDtfsCounter, 1110 mSDsluCounter, 3154 mSDsCounter, 0 mSdLazyCounter, 2553 mSolverCounterSat, 463 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1155 SdHoareTripleChecker+Valid, 3971 SdHoareTripleChecker+Invalid, 3016 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 463 IncrementalHoareTripleChecker+Valid, 2553 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2021-11-20 06:13:50,200 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1155 Valid, 3971 Invalid, 3016 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [463 Valid, 2553 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2021-11-20 06:13:50,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2914 states. [2021-11-20 06:13:50,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2914 to 2311. [2021-11-20 06:13:50,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2311 states, 1750 states have (on average 1.3851428571428572) internal successors, (2424), 1790 states have internal predecessors, (2424), 411 states have call successors, (411), 125 states have call predecessors, (411), 149 states have return successors, (565), 432 states have call predecessors, (565), 409 states have call successors, (565) [2021-11-20 06:13:50,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2311 states to 2311 states and 3400 transitions. [2021-11-20 06:13:50,350 INFO L78 Accepts]: Start accepts. Automaton has 2311 states and 3400 transitions. Word has length 77 [2021-11-20 06:13:50,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:13:50,350 INFO L470 AbstractCegarLoop]: Abstraction has 2311 states and 3400 transitions. [2021-11-20 06:13:50,350 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (10), 5 states have call predecessors, (10), 2 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2021-11-20 06:13:50,351 INFO L276 IsEmpty]: Start isEmpty. Operand 2311 states and 3400 transitions. [2021-11-20 06:13:50,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-11-20 06:13:50,354 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:13:50,354 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:13:50,355 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-20 06:13:50,355 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:13:50,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:13:50,355 INFO L85 PathProgramCache]: Analyzing trace with hash -253002884, now seen corresponding path program 1 times [2021-11-20 06:13:50,356 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:13:50,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444072943] [2021-11-20 06:13:50,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:13:50,356 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:13:54,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:13:55,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:13:55,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:13:55,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-20 06:13:55,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:13:55,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-20 06:13:55,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:13:55,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-20 06:13:55,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:13:55,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 06:13:55,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:13:55,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-20 06:13:55,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:13:55,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-20 06:13:55,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:13:55,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-20 06:13:55,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:13:55,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-11-20 06:13:55,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:13:55,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-20 06:13:55,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:13:55,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-11-20 06:13:55,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:13:55,587 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-20 06:13:55,588 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:13:55,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444072943] [2021-11-20 06:13:55,588 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444072943] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:13:55,588 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:13:55,588 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-20 06:13:55,589 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336257652] [2021-11-20 06:13:55,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:13:55,589 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-20 06:13:55,590 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:13:55,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-20 06:13:55,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2021-11-20 06:13:55,591 INFO L87 Difference]: Start difference. First operand 2311 states and 3400 transitions. Second operand has 12 states, 10 states have (on average 6.7) internal successors, (67), 9 states have internal predecessors, (67), 5 states have call successors, (12), 5 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2021-11-20 06:13:57,300 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:13:58,591 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:14:00,425 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:14:03,335 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:14:09,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:14:09,921 INFO L93 Difference]: Finished difference Result 4602 states and 7106 transitions. [2021-11-20 06:14:09,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-20 06:14:09,933 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 6.7) internal successors, (67), 9 states have internal predecessors, (67), 5 states have call successors, (12), 5 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) Word has length 93 [2021-11-20 06:14:09,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:14:09,971 INFO L225 Difference]: With dead ends: 4602 [2021-11-20 06:14:09,971 INFO L226 Difference]: Without dead ends: 2908 [2021-11-20 06:14:09,982 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=120, Invalid=530, Unknown=0, NotChecked=0, Total=650 [2021-11-20 06:14:09,983 INFO L933 BasicCegarLoop]: 828 mSDtfsCounter, 1075 mSDsluCounter, 4711 mSDsCounter, 0 mSdLazyCounter, 4176 mSolverCounterSat, 454 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1117 SdHoareTripleChecker+Valid, 5539 SdHoareTripleChecker+Invalid, 4631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 454 IncrementalHoareTripleChecker+Valid, 4176 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.8s IncrementalHoareTripleChecker+Time [2021-11-20 06:14:09,985 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1117 Valid, 5539 Invalid, 4631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [454 Valid, 4176 Invalid, 1 Unknown, 0 Unchecked, 13.8s Time] [2021-11-20 06:14:09,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2908 states. [2021-11-20 06:14:10,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2908 to 2302. [2021-11-20 06:14:10,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2302 states, 1743 states have (on average 1.3861158921399885) internal successors, (2416), 1784 states have internal predecessors, (2416), 411 states have call successors, (411), 125 states have call predecessors, (411), 147 states have return successors, (557), 429 states have call predecessors, (557), 409 states have call successors, (557) [2021-11-20 06:14:10,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2302 states to 2302 states and 3384 transitions. [2021-11-20 06:14:10,168 INFO L78 Accepts]: Start accepts. Automaton has 2302 states and 3384 transitions. Word has length 93 [2021-11-20 06:14:10,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:14:10,170 INFO L470 AbstractCegarLoop]: Abstraction has 2302 states and 3384 transitions. [2021-11-20 06:14:10,171 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 6.7) internal successors, (67), 9 states have internal predecessors, (67), 5 states have call successors, (12), 5 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2021-11-20 06:14:10,172 INFO L276 IsEmpty]: Start isEmpty. Operand 2302 states and 3384 transitions. [2021-11-20 06:14:10,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-11-20 06:14:10,176 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:14:10,177 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:14:10,177 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-20 06:14:10,178 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:14:10,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:14:10,178 INFO L85 PathProgramCache]: Analyzing trace with hash -1961504236, now seen corresponding path program 1 times [2021-11-20 06:14:10,179 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:14:10,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463900245] [2021-11-20 06:14:10,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:14:10,179 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:14:10,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:14:10,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:14:10,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:14:10,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-20 06:14:10,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:14:10,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-20 06:14:10,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:14:10,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-20 06:14:10,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:14:10,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 06:14:10,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:14:10,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-20 06:14:10,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:14:10,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-20 06:14:10,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:14:10,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-20 06:14:10,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:14:10,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-11-20 06:14:10,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:14:10,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-20 06:14:10,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:14:10,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-11-20 06:14:10,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:14:10,911 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-20 06:14:10,911 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:14:10,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463900245] [2021-11-20 06:14:10,912 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463900245] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:14:10,912 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:14:10,912 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-20 06:14:10,912 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633669607] [2021-11-20 06:14:10,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:14:10,913 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-20 06:14:10,913 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:14:10,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-20 06:14:10,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-11-20 06:14:10,915 INFO L87 Difference]: Start difference. First operand 2302 states and 3384 transitions. Second operand has 10 states, 10 states have (on average 6.9) internal successors, (69), 8 states have internal predecessors, (69), 4 states have call successors, (12), 5 states have call predecessors, (12), 4 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) [2021-11-20 06:14:13,090 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:14:14,200 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:14:15,317 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:14:16,496 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:14:24,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:14:24,400 INFO L93 Difference]: Finished difference Result 5655 states and 8903 transitions. [2021-11-20 06:14:24,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-20 06:14:24,401 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.9) internal successors, (69), 8 states have internal predecessors, (69), 4 states have call successors, (12), 5 states have call predecessors, (12), 4 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) Word has length 95 [2021-11-20 06:14:24,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:14:24,438 INFO L225 Difference]: With dead ends: 5655 [2021-11-20 06:14:24,439 INFO L226 Difference]: Without dead ends: 4796 [2021-11-20 06:14:24,445 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=177, Invalid=423, Unknown=0, NotChecked=0, Total=600 [2021-11-20 06:14:24,446 INFO L933 BasicCegarLoop]: 857 mSDtfsCounter, 4697 mSDsluCounter, 2381 mSDsCounter, 0 mSdLazyCounter, 4287 mSolverCounterSat, 2250 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4769 SdHoareTripleChecker+Valid, 3238 SdHoareTripleChecker+Invalid, 6538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2250 IncrementalHoareTripleChecker+Valid, 4287 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.9s IncrementalHoareTripleChecker+Time [2021-11-20 06:14:24,446 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4769 Valid, 3238 Invalid, 6538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2250 Valid, 4287 Invalid, 1 Unknown, 0 Unchecked, 12.9s Time] [2021-11-20 06:14:24,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4796 states. [2021-11-20 06:14:24,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4796 to 3885. [2021-11-20 06:14:24,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3885 states, 2929 states have (on average 1.3717992488904063) internal successors, (4018), 2987 states have internal predecessors, (4018), 697 states have call successors, (697), 199 states have call predecessors, (697), 258 states have return successors, (1276), 762 states have call predecessors, (1276), 695 states have call successors, (1276) [2021-11-20 06:14:24,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3885 states to 3885 states and 5991 transitions. [2021-11-20 06:14:24,735 INFO L78 Accepts]: Start accepts. Automaton has 3885 states and 5991 transitions. Word has length 95 [2021-11-20 06:14:24,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:14:24,735 INFO L470 AbstractCegarLoop]: Abstraction has 3885 states and 5991 transitions. [2021-11-20 06:14:24,736 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.9) internal successors, (69), 8 states have internal predecessors, (69), 4 states have call successors, (12), 5 states have call predecessors, (12), 4 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) [2021-11-20 06:14:24,736 INFO L276 IsEmpty]: Start isEmpty. Operand 3885 states and 5991 transitions. [2021-11-20 06:14:24,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-11-20 06:14:24,741 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:14:24,741 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:14:24,741 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-20 06:14:24,742 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:14:24,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:14:24,742 INFO L85 PathProgramCache]: Analyzing trace with hash 127263836, now seen corresponding path program 1 times [2021-11-20 06:14:24,742 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:14:24,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049376926] [2021-11-20 06:14:24,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:14:24,743 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:14:24,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:14:25,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:14:25,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:14:25,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-20 06:14:25,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:14:25,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-20 06:14:25,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:14:25,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-20 06:14:25,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:14:25,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 06:14:25,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:14:25,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-20 06:14:25,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:14:25,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-11-20 06:14:25,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:14:25,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-11-20 06:14:25,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:14:25,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-11-20 06:14:25,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:14:25,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-20 06:14:25,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:14:25,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-20 06:14:25,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:14:25,286 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-20 06:14:25,286 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:14:25,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049376926] [2021-11-20 06:14:25,287 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049376926] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:14:25,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1593516852] [2021-11-20 06:14:25,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:14:25,287 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:14:25,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:14:25,290 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:14:25,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-20 06:14:26,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:14:26,670 INFO L263 TraceCheckSpWp]: Trace formula consists of 8127 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-20 06:14:26,685 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:14:26,945 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-20 06:14:26,945 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 06:14:26,946 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1593516852] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:14:26,946 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 06:14:26,946 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 8 [2021-11-20 06:14:26,947 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449966092] [2021-11-20 06:14:26,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:14:26,948 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 06:14:26,948 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:14:26,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 06:14:26,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-20 06:14:26,949 INFO L87 Difference]: Start difference. First operand 3885 states and 5991 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-20 06:14:27,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:14:27,182 INFO L93 Difference]: Finished difference Result 7153 states and 11037 transitions. [2021-11-20 06:14:27,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 06:14:27,183 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 96 [2021-11-20 06:14:27,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:14:27,208 INFO L225 Difference]: With dead ends: 7153 [2021-11-20 06:14:27,208 INFO L226 Difference]: Without dead ends: 3885 [2021-11-20 06:14:27,228 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-20 06:14:27,229 INFO L933 BasicCegarLoop]: 1044 mSDtfsCounter, 217 mSDsluCounter, 1668 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 2712 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 06:14:27,229 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [259 Valid, 2712 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 06:14:27,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3885 states. [2021-11-20 06:14:27,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3885 to 3885. [2021-11-20 06:14:27,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3885 states, 2929 states have (on average 1.3700921816319562) internal successors, (4013), 2987 states have internal predecessors, (4013), 697 states have call successors, (697), 199 states have call predecessors, (697), 258 states have return successors, (1276), 762 states have call predecessors, (1276), 695 states have call successors, (1276) [2021-11-20 06:14:27,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3885 states to 3885 states and 5986 transitions. [2021-11-20 06:14:27,566 INFO L78 Accepts]: Start accepts. Automaton has 3885 states and 5986 transitions. Word has length 96 [2021-11-20 06:14:27,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:14:27,567 INFO L470 AbstractCegarLoop]: Abstraction has 3885 states and 5986 transitions. [2021-11-20 06:14:27,567 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2021-11-20 06:14:27,567 INFO L276 IsEmpty]: Start isEmpty. Operand 3885 states and 5986 transitions. [2021-11-20 06:14:27,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-11-20 06:14:27,572 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:14:27,572 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:14:27,620 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-20 06:14:27,786 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:14:27,787 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:14:27,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:14:27,787 INFO L85 PathProgramCache]: Analyzing trace with hash 112255749, now seen corresponding path program 1 times [2021-11-20 06:14:27,787 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:14:27,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138675130] [2021-11-20 06:14:27,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:14:27,788 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:14:34,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:14:34,543 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 06:14:37,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:14:37,935 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 06:14:37,936 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-20 06:14:37,937 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-20 06:14:37,941 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-20 06:14:37,946 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:14:37,950 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-20 06:14:38,192 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 06:14:38 BoogieIcfgContainer [2021-11-20 06:14:38,192 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-20 06:14:38,193 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 06:14:38,193 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 06:14:38,194 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 06:14:38,194 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:12:42" (3/4) ... [2021-11-20 06:14:38,197 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-20 06:14:38,197 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 06:14:38,199 INFO L158 Benchmark]: Toolchain (without parser) took 199312.35ms. Allocated memory was 146.8MB in the beginning and 1.0GB in the end (delta: 885.0MB). Free memory was 112.5MB in the beginning and 638.5MB in the end (delta: -526.0MB). Peak memory consumption was 357.0MB. Max. memory is 16.1GB. [2021-11-20 06:14:38,199 INFO L158 Benchmark]: CDTParser took 0.44ms. Allocated memory is still 96.5MB. Free memory was 69.2MB in the beginning and 69.1MB in the end (delta: 28.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 06:14:38,200 INFO L158 Benchmark]: CACSL2BoogieTranslator took 6373.52ms. Allocated memory was 146.8MB in the beginning and 320.9MB in the end (delta: 174.1MB). Free memory was 111.6MB in the beginning and 226.8MB in the end (delta: -115.2MB). Peak memory consumption was 132.2MB. Max. memory is 16.1GB. [2021-11-20 06:14:38,200 INFO L158 Benchmark]: Boogie Procedure Inliner took 519.48ms. Allocated memory is still 320.9MB. Free memory was 226.8MB in the beginning and 195.4MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2021-11-20 06:14:38,201 INFO L158 Benchmark]: Boogie Preprocessor took 248.23ms. Allocated memory is still 320.9MB. Free memory was 195.4MB in the beginning and 171.2MB in the end (delta: 24.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2021-11-20 06:14:38,201 INFO L158 Benchmark]: RCFGBuilder took 76149.25ms. Allocated memory was 320.9MB in the beginning and 1.0GB in the end (delta: 710.9MB). Free memory was 171.2MB in the beginning and 861.5MB in the end (delta: -690.2MB). Peak memory consumption was 595.3MB. Max. memory is 16.1GB. [2021-11-20 06:14:38,201 INFO L158 Benchmark]: TraceAbstraction took 116009.19ms. Allocated memory is still 1.0GB. Free memory was 861.5MB in the beginning and 638.5MB in the end (delta: 222.9MB). Peak memory consumption was 575.3MB. Max. memory is 16.1GB. [2021-11-20 06:14:38,202 INFO L158 Benchmark]: Witness Printer took 4.20ms. Allocated memory is still 1.0GB. Free memory is still 638.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 06:14:38,205 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44ms. Allocated memory is still 96.5MB. Free memory was 69.2MB in the beginning and 69.1MB in the end (delta: 28.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 6373.52ms. Allocated memory was 146.8MB in the beginning and 320.9MB in the end (delta: 174.1MB). Free memory was 111.6MB in the beginning and 226.8MB in the end (delta: -115.2MB). Peak memory consumption was 132.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 519.48ms. Allocated memory is still 320.9MB. Free memory was 226.8MB in the beginning and 195.4MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 248.23ms. Allocated memory is still 320.9MB. Free memory was 195.4MB in the beginning and 171.2MB in the end (delta: 24.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * RCFGBuilder took 76149.25ms. Allocated memory was 320.9MB in the beginning and 1.0GB in the end (delta: 710.9MB). Free memory was 171.2MB in the beginning and 861.5MB in the end (delta: -690.2MB). Peak memory consumption was 595.3MB. Max. memory is 16.1GB. * TraceAbstraction took 116009.19ms. Allocated memory is still 1.0GB. Free memory was 861.5MB in the beginning and 638.5MB in the end (delta: 222.9MB). Peak memory consumption was 575.3MB. Max. memory is 16.1GB. * Witness Printer took 4.20ms. Allocated memory is still 1.0GB. Free memory is still 638.5MB. There was no memory consumed. Max. memory is 16.1GB. * 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: 7097]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of large string literal at line 6835, overapproximation of bitwiseAnd at line 6930. Possible FailurePath: [L4814] int gigaset_debuglevel ; [L6831] static struct list_head drivers = {& drivers, & drivers}; [L6832-L6836] static spinlock_t driver_lock = {{{{0U}, 3735899821U, 4294967295U, (void *)0x0fffffffffffffffUL, {(struct lock_class_key *)0, {(struct lock_class *)0, (struct lock_class *)0}, "driver_lock", 0, 0UL}}}}; [L7093] int LDV_IN_INTERRUPT ; [L7101] int ldv_module_refcounter = 1; [L7611-L7632] static struct tty_operations const if_ops = {(struct tty_struct *(*)(struct tty_driver * , struct inode * , int ))0, (int (*)(struct tty_driver * , struct tty_struct * ))0, (void (*)(struct tty_driver * , struct tty_struct * ))0, & if_open, & if_close, (void (*)(struct tty_struct * ))0, (void (*)(struct tty_struct * ))0, & if_write, (int (*)(struct tty_struct * , unsigned char ))0, (void (*)(struct tty_struct * ))0, & if_write_room, & if_chars_in_buffer, & if_ioctl, (long (*)(struct tty_struct * , unsigned int , unsigned long ))0, & if_set_termios, & if_throttle, & if_unthrottle, (void (*)(struct tty_struct * ))0, (void (*)(struct tty_struct * ))0, (void (*)(struct tty_struct * ))0, (int (*)(struct tty_struct * , int ))0, (void (*)(struct tty_struct * ))0, (void (*)(struct tty_struct * ))0, (void (*)(struct tty_struct * , int ))0, (void (*)(struct tty_struct * , char ))0, & if_tiocmget, & if_tiocmset, (int (*)(struct tty_struct * , struct winsize * ))0, (int (*)(struct tty_struct * , struct termiox * ))0, (int (*)(struct tty_struct * , struct serial_icounter_struct * ))0, (int (*)(struct tty_driver * , int , char * ))0, (int (*)(struct tty_driver * , int ))0, (void (*)(struct tty_driver * , int , char ))0, (struct file_operations const *)0}; [L9090-L9093] static struct device_attribute dev_attr_cidmode = {{"cidmode", 420U, (struct lock_class_key *)0, {{{(char)0}, {(char)0}, {(char)0}, {(char)0}, {(char)0}, {(char)0}, {(char)0}, {(char)0}}}}, & show_cidmode, & set_cidmode}; [L9169-L9233] struct reply_t gigaset_tab_nocid[64U] = { {-27, -1, -1, 100, 100, 1, {29, 0, 0}, (char *)0}, {-105, 100, 100, -1, 101, 3, {0, 0, 0}, (char *)"Z\r"}, {0, 101, 103, -1, 120, 5, {30, 0, 0}, (char *)"+GMR\r"}, {-105, 101, 101, -1, 102, 5, {0, 0, 0}, (char *)"Z\r"}, {1, 101, 101, -1, 102, 5, {0, 0, 0}, (char *)"Z\r"}, {-105, 102, 102, -1, 108, 5, {1, 0, 0}, (char *)"^SDLE=0\r"}, {0, 108, 108, -1, 104, -1, {0, 0, 0}, (char *)0}, {101, 104, 104, 0, 103, 5, {0, 0, 0}, (char *)"Z\r"}, {-105, 104, 104, -1, 0, 0, {3, 0, 0}, (char *)0}, {1, 108, 108, -1, 0, 0, {3, 0, 0}, (char *)0}, {-105, 108, 108, -1, 105, 2, {2, 4, 29}, (char *)0}, {-105, 105, 105, -1, 103, 5, {0, 0, 0}, (char *)"Z\r"}, {1, 102, 102, -1, 107, 5, {0, 0, 0}, (char *)"^GETPRE\r"}, {0, 107, 107, -1, 0, 0, {5, 0, 0}, (char *)0}, {1, 107, 107, -1, 0, 0, {3, 0, 0}, (char *)0}, {-105, 107, 107, -1, 0, 0, {3, 0, 0}, (char *)0}, {1, 103, 103, -1, 0, 0, {3, 0, 0}, (char *)0}, {-105, 103, 103, -1, 0, 0, {3, 0, 0}, (char *)0}, {-20, 120, 120, -1, 121, -1, {31, 0, 0}, (char *)0}, {-105, 120, 121, -1, 0, 0, {32, 6, 0}, (char *)0}, {1, 120, 121, -1, 0, 0, {32, 6, 0}, (char *)0}, {0, 121, 121, -1, 0, 0, {33, 6, 0}, (char *)0}, {-27, 0, 0, 200, 201, 5, {0, 0, 0}, (char *)"^SDLE=0\r"}, {0, 201, 201, -1, 202, -1, {0, 0, 0}, (char *)0}, {101, 202, 202, 0, 0, 0, {7, 0, 0}, (char *)0}, {-9, 200, 249, -1, 0, 0, {47, 0, 0}, (char *)0}, {1, 200, 249, -1, 0, 0, {9, 0, 0}, (char *)0}, {-105, 200, 249, -1, 0, 0, {9, 0, 0}, (char *)0}, {-27, 0, 0, 250, 251, 5, {0, 0, 0}, (char *)"^SDLE=1\r"}, {0, 251, 251, -1, 252, -1, {0, 0, 0}, (char *)0}, {101, 252, 252, 1, 0, 0, {8, 0, 0}, (char *)0}, {1, 250, 299, -1, 0, 0, {10, 0, 0}, (char *)0}, {-105, 250, 299, -1, 0, 0, {10, 0, 0}, (char *)0}, {4, -1, -1, -1, -1, -1, {11, 0, 0}, (char *)0}, {-27, 0, 0, 300, 301, 5, {0, 0, 0}, (char *)"^SGCI?\r"}, {0, 301, 301, -1, 302, -1, {0, 0, 0}, (char *)0}, {3, 302, 302, -1, 0, 0, {12, 0, 0}, (char *)0}, {1, 301, 349, -1, 0, 0, {13, 0, 0}, (char *)0}, {-105, 301, 349, -1, 0, 0, {13, 0, 0}, (char *)0}, {-27, 0, 0, 10, 150, 5, {0, 0, 0}, (char *)"^SGCI=1\r"}, {0, 150, 150, -1, 0, 0, {54, 0, 0}, (char *)0}, {1, 150, 150, -1, 0, 0, {55, 0, 0}, (char *)0}, {-105, 150, 150, -1, 0, 0, {55, 0, 0}, (char *)0}, {-27, 0, 0, 11, 160, 5, {0, 0, 0}, (char *)"Z\r"}, {0, 160, 160, -1, 0, 0, {52, 0, 0}, (char *)0}, {1, 160, 160, -1, 0, 0, {53, 0, 0}, (char *)0}, {-105, 160, 160, -1, 0, 0, {53, 0, 0}, (char *)0}, {-27, 0, 0, 350, 0, 0, {36, 0, 0}, (char *)0}, {-27, 0, 0, 500, 504, 5, {0, 0, 0}, (char *)"Z\r"}, {0, 504, 504, -1, 0, 0, {14, 0, 0}, (char *)0}, {1, 501, 599, -1, 0, 0, {15, 0, 0}, (char *)0}, {-105, 501, 599, -1, 0, 0, {15, 0, 0}, (char *)0}, {-9, 501, 599, -1, 0, 0, {49, 0, 0}, (char *)0}, {-107, -1, -1, -1, -1, -1, {51, 0, 0}, (char *)0}, {-112, -1, -1, -1, -1, -1, {44, 0, 0}, (char *)0}, {-106, -1, -1, -1, -1, -1, {56, 0, 0}, (char *)0}, {-110, -1, -1, -1, -1, -1, {45, 0, 0}, (char *)0}, {-111, -1, -1, -1, -1, -1, {46, 0, 0}, (char *)0}, {-108, -1, -1, -1, -1, -1, {50, 0, 0}, (char *)0}, {1, -1, -1, -1, -1, -1, {35, 0, 0}, (char *)0}, {6, -1, -1, -1, -1, -1, {37, 0, 0}, (char *)0}, {-19, -1, -1, -1, -1, -1, {16, 0, 0}, (char *)0}, {-26, -1, -1, -1, -1, -1, {17, 0, 0}, (char *)0}, {-28, 0, 0, 0, 0, 0, {0, 0, 0}, (char *)0}}; [L9234-L9298] struct reply_t gigaset_tab_cid[64U] = { {-115, -1, -1, -1, -1, -1, {40, 0, 0}, (char *)0}, {-27, 0, 0, 600, 601, 5, {103, 0, 0}, (char *)0}, {0, 601, 601, -1, 603, 5, {104, 0, 0}, (char *)0}, {0, 603, 603, -1, 604, 5, {105, 0, 0}, (char *)0}, {0, 604, 604, -1, 605, 5, {102, 0, 0}, (char *)0}, {-21, 605, 605, -1, 606, 5, {106, 0, 0}, (char *)0}, {0, 605, 605, -1, 606, 5, {106, 0, 0}, (char *)0}, {-21, 606, 606, -1, 607, 5, {100, 0, 0}, (char *)0}, {0, 606, 606, -1, 607, 5, {100, 0, 0}, (char *)0}, {0, 607, 607, -1, 608, 5, {0, 0, 0}, (char *)"+VLS=17\r"}, {0, 608, 608, -1, 609, -1, {0, 0, 0}, (char *)0}, {100, 609, 609, 1, 610, 5, {101, 0, 0}, (char *)0}, {0, 610, 610, -1, 650, 0, {18, 0, 0}, (char *)0}, {1, 601, 610, -1, 0, 0, {19, 0, 0}, (char *)0}, {-105, 601, 610, -1, 0, 0, {19, 0, 0}, (char *)0}, {-117, 650, 650, -1, 651, -1, {0, 0, 0}, (char *)0}, {5, 609, 651, 17, -1, -1, {16, 0, 0}, (char *)0}, {102, 610, 651, -1, -1, -1, {16, 0, 0}, (char *)0}, {104, 610, 651, -1, -1, -1, {16, 0, 0}, (char *)0}, {100, 650, 651, 2, -1, -1, {16, 0, 0}, (char *)0}, {100, 650, 650, 3, 800, -1, {21, 0, 0}, (char *)0}, {100, 651, 651, 3, 800, -1, {21, 39, 0}, (char *)0}, {100, 750, 750, 3, 800, -1, {21, 0, 0}, (char *)0}, {100, 751, 751, 3, 800, -1, {21, 39, 0}, (char *)0}, {-117, 800, 800, -1, 800, -1, {39, 0, 0}, (char *)0}, {100, 650, 651, 4, 0, 0, {22, 0, 0}, (char *)0}, {100, 750, 751, 4, 0, 0, {24, 0, 0}, (char *)0}, {100, 800, 800, 4, 0, 0, {24, 0, 0}, (char *)0}, {-116, -1, -1, -1, -1, -1, {43, 0, 0}, (char *)0}, {-27, -1, -1, 400, 401, 5, {0, 0, 0}, (char *)"+VLS=0\r"}, {0, 401, 401, -1, 402, 5, {0, 0, 0}, (char *)0}, {5, 402, 402, 0, 403, 5, {0, 0, 0}, (char *)0}, {100, 403, 403, 6, -1, -1, {16, 0, 0}, (char *)0}, {100, 403, 403, 5, 0, 0, {20, 0, 0}, (char *)0}, {-9, 401, 403, -1, 0, 0, {48, 0, 0}, (char *)0}, {1, 401, 401, -1, 0, 0, {25, 0, 0}, (char *)0}, {-105, 401, 403, -1, 0, 0, {25, 0, 0}, (char *)0}, {-118, 0, 0, -1, 0, -1, {38, 0, 0}, (char *)0}, {106, 700, 700, -1, -1, -1, {0, 0, 0}, (char *)0}, {107, 700, 700, -1, -1, -1, {0, 0, 0}, (char *)0}, {103, 700, 700, -1, -1, -1, {0, 0, 0}, (char *)0}, {104, 700, 700, -1, -1, -1, {0, 0, 0}, (char *)0}, {102, 700, 700, -1, -1, -1, {0, 0, 0}, (char *)0}, {-105, 700, 700, -1, 720, 720, {26, 0, 0}, (char *)0}, {-118, 720, 720, -1, 0, -1, {38, 0, 0}, (char *)0}, {-114, -1, -1, -1, -1, -1, {41, 0, 0}, (char *)0}, {-27, 720, 720, 720, 721, 5, {104, 0, 0}, (char *)0}, {0, 721, 721, -1, 722, 5, {100, 0, 0}, (char *)0}, {0, 722, 722, -1, 723, 5, {0, 0, 0}, (char *)"+VLS=17\r"}, {0, 723, 723, -1, 724, 5, {0, 0, 0}, (char *)0}, {5, 724, 724, 17, 750, 50, {27, 0, 0}, (char *)0}, {1, 721, 729, -1, 0, 0, {28, 0, 0}, (char *)0}, {-105, 721, 729, -1, 0, 0, {28, 0, 0}, (char *)0}, {100, 700, 729, 5, 0, 0, {28, 0, 0}, (char *)0}, {100, 700, 729, 3, 0, 0, {28, 0, 0}, (char *)0}, {100, 700, 729, 4, 0, 0, {28, 0, 0}, (char *)0}, {-117, 750, 750, -1, 751, -1, {0, 0, 0}, (char *)0}, {-105, 750, 751, -1, 0, 0, {23, 0, 0}, (char *)0}, {-118, -1, -1, -1, -1, -1, {38, 0, 0}, (char *)0}, {105, -1, -1, -1, -1, -1, {16, 0, 0}, (char *)0}, {6, -1, -1, -1, -1, -1, {37, 0, 0}, (char *)0}, {-19, -1, -1, -1, -1, -1, {16, 0, 0}, (char *)0}, {-26, -1, -1, -1, -1, -1, {17, 0, 0}, (char *)0}, {-28, 0, 0, 0, 0, 0, {0, 0, 0}, (char *)0}}; [L9299-L9314] static struct resp_type_t const resp_type[15U] = { {(unsigned char *)"OK", 0, 0}, {(unsigned char *)"ERROR", 1, 0}, {(unsigned char *)"ZSAU", 100, 1}, {(unsigned char *)"ZCAU", 6, 6}, {(unsigned char *)"RING", 4, 2}, {(unsigned char *)"ZGCI", 3, 3}, {(unsigned char *)"ZVLS", 5, 3}, {(unsigned char *)"ZCTP", 102, 3}, {(unsigned char *)"ZDLE", 101, 3}, {(unsigned char *)"ZHLC", 107, 4}, {(unsigned char *)"ZBC", 106, 4}, {(unsigned char *)"NMBR", 103, 4}, {(unsigned char *)"ZCPN", 104, 4}, {(unsigned char *)"ZCON", 105, 4}, {(unsigned char *)0, 0, 0}}; [L9315-L9321] static struct zsau_resp_t const zsau_resp[7U] = { {(unsigned char *)"OUTGOING_CALL_PROCEEDING", 1}, {(unsigned char *)"CALL_DELIVERED", 2}, {(unsigned char *)"ACTIVE", 3}, {(unsigned char *)"DISCONNECT_IND", 4}, {(unsigned char *)"NULL", 5}, {(unsigned char *)"DISCONNECT_REQ", 6}, {(unsigned char *)0, -1}}; [L13314-L13343] static struct __anonstruct_cip2bchlc_198 cip2bchlc[29U] = { {(u8 *)0, (u8 *)0}, {(u8 *)"8090A3", (u8 *)0}, {(u8 *)"8890", (u8 *)0}, {(u8 *)"8990", (u8 *)0}, {(u8 *)"9090A3", (u8 *)0}, {(u8 *)"9190", (u8 *)0}, {(u8 *)"9890", (u8 *)0}, {(u8 *)"88C0C6E6", (u8 *)0}, {(u8 *)"8890218F", (u8 *)0}, {(u8 *)"9190A5", (u8 *)0}, {(u8 *)0, (u8 *)0}, {(u8 *)0, (u8 *)0}, {(u8 *)0, (u8 *)0}, {(u8 *)0, (u8 *)0}, {(u8 *)0, (u8 *)0}, {(u8 *)0, (u8 *)0}, {(u8 *)"8090A3", (u8 *)"9181"}, {(u8 *)"9090A3", (u8 *)"9184"}, {(u8 *)"8890", (u8 *)"91A1"}, {(u8 *)"8890", (u8 *)"91A4"}, {(u8 *)"8890", (u8 *)"91A8"}, {(u8 *)"8890", (u8 *)"91B1"}, {(u8 *)"8890", (u8 *)"91B2"}, {(u8 *)"8890", (u8 *)"91B5"}, {(u8 *)"8890", (u8 *)"91B8"}, {(u8 *)"8890", (u8 *)"91C1"}, {(u8 *)"9190A5", (u8 *)"9181"}, {(u8 *)"9190A5", (u8 *)"916001"}, {(u8 *)"8890", (u8 *)"916002"}}; [L16141] static unsigned long ignored_msg_dump_time ; [L16193-L16217] static struct __anonstruct_capi_send_handler_table_202 capi_send_handler_table[24U] = { {(u16 )34432U, & do_data_b3_req}, {(u16 )34435U, & do_data_b3_resp}, {(u16 )384U, & do_alert_req}, {(u16 )899U, & do_nothing}, {(u16 )33667U, & do_nothing}, {(u16 )33408U, & do_connect_b3_req}, {(u16 )33411U, & do_connect_b3_resp}, {(u16 )34947U, & do_nothing}, {(u16 )640U, & do_connect_req}, {(u16 )643U, & do_connect_resp}, {(u16 )33920U, & do_disconnect_b3_req}, {(u16 )33923U, & do_nothing}, {(u16 )1152U, & do_disconnect_req}, {(u16 )1155U, & do_nothing}, {(u16 )32896U, & do_facility_req}, {(u16 )32899U, & do_nothing}, {(u16 )1408U, & do_listen_req}, {(u16 )16768U, & do_unsupported}, {(u16 )34688U, & do_reset_b3_req}, {(u16 )34691U, & do_nothing}, {(u16 )2176U, & do_unsupported}, {(u16 )2179U, & do_nothing}, {(u16 )65408U, & do_nothing}, {(u16 )65411U, & do_nothing}}; [L16578-L16607] static struct file_operations const gigaset_proc_fops = {& __this_module, & seq_lseek, & seq_read, (ssize_t (*)(struct file * , char const * , size_t , loff_t * ))0, (ssize_t (*)(struct kiocb * , struct iovec const * , unsigned long , loff_t ))0, (ssize_t (*)(struct kiocb * , struct iovec const * , unsigned long , loff_t ))0, (int (*)(struct file * , void * , int (*)(void * , char const * , int , loff_t , u64 , unsigned int ) ))0, (unsigned int (*)(struct file * , struct poll_table_struct * ))0, (long (*)(struct file * , unsigned int , unsigned long ))0, (long (*)(struct file * , unsigned int , unsigned long ))0, (int (*)(struct file * , struct vm_area_struct * ))0, & gigaset_proc_open, (int (*)(struct file * , fl_owner_t ))0, & single_release, (int (*)(struct file * , int ))0, (int (*)(struct kiocb * , int ))0, (int (*)(int , struct file * , int ))0, (int (*)(struct file * , int , struct file_lock * ))0, (ssize_t (*)(struct file * , struct page * , int , size_t , loff_t * , int ))0, (unsigned long (*)(struct file * , unsigned long , unsigned long , unsigned long , unsigned long ))0, (int (*)(int ))0, (int (*)(struct file * , int , struct file_lock * ))0, (ssize_t (*)(struct pipe_inode_info * , struct file * , loff_t * , size_t , unsigned int ))0, (ssize_t (*)(struct file * , loff_t * , struct pipe_inode_info * , size_t , unsigned int ))0, (int (*)(struct file * , long , struct file_lock ** ))0, (long (*)(struct file * , int , loff_t , loff_t ))0}; [L16666-L16669] static struct capi_driver capi_driver_gigaset = {{(char )'g', (char )'i', (char )'g', (char )'a', (char )'s', (char )'e', (char )'t', (char )'\000'}, {(char )'1', (char )'.', (char )'0', (char )'\000'}, (int (*)(struct capi_driver * , capicardparams * ))0, {(struct list_head *)0, (struct list_head *)0}}; VAL [__this_module={18446744073709551633:18446744073709551644}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=0, ldv_module_refcounter=1, resp_type={697:0}, zsau_resp={698:0}] [L8811] struct tty_struct *var_group1 ; [L8812] struct file *var_group2 ; [L8813] int res_if_open_2 ; [L8814] unsigned int var_if_ioctl_4_p1 ; [L8815] unsigned long var_if_ioctl_4_p2 ; [L8816] unsigned char const *var_if_write_7_p1 ; [L8817] int var_if_write_7_p2 ; [L8818] struct ktermios *var_group3 ; [L8819] unsigned int var_if_tiocmset_6_p1 ; [L8820] unsigned int var_if_tiocmset_6_p2 ; [L8821] int ldv_s_if_ops_tty_operations ; [L8822] int tmp ; [L8823] int tmp___0 ; VAL [__this_module={18446744073709551633:18446744073709551644}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=0, ldv_module_refcounter=1, resp_type={697:0}, zsau_resp={698:0}] [L8826] CALL, EXPR ldv_malloc(sizeof(struct list_head)) VAL [__this_module={18446744073709551633:18446744073709551644}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=0, ldv_module_refcounter=1, resp_type={697:0}, zsau_resp={698:0}] [L8805] COND TRUE __VERIFIER_nondet_bool() [L8805] return 0; VAL [\old(size)=16, \result={0:0}, __this_module={18446744073709551633:18446744073709551644}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=0, ldv_module_refcounter=1, resp_type={697:0}, size=16, zsau_resp={698:0}] [L8826] RET, EXPR ldv_malloc(sizeof(struct list_head)) VAL [__this_module={18446744073709551633:18446744073709551644}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=0, ldv_malloc(sizeof(struct list_head))={0:0}, ldv_module_refcounter=1, resp_type={697:0}, zsau_resp={698:0}] [L8826] drivers.prev = ldv_malloc(sizeof(struct list_head)) [L8827] CALL, EXPR ldv_malloc(sizeof(struct list_head)) VAL [__this_module={18446744073709551633:18446744073709551644}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=0, ldv_module_refcounter=1, resp_type={697:0}, zsau_resp={698:0}] [L8805] COND TRUE __VERIFIER_nondet_bool() [L8805] return 0; VAL [\old(size)=16, \result={0:0}, __this_module={18446744073709551633:18446744073709551644}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=0, ldv_module_refcounter=1, resp_type={697:0}, size=16, zsau_resp={698:0}] [L8827] RET, EXPR ldv_malloc(sizeof(struct list_head)) VAL [__this_module={18446744073709551633:18446744073709551644}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=0, ldv_malloc(sizeof(struct list_head))={0:0}, ldv_module_refcounter=1, resp_type={697:0}, zsau_resp={698:0}] [L8827] drivers.next = ldv_malloc(sizeof(struct list_head)) [L8828] ldv_s_if_ops_tty_operations = 0 [L8829] LDV_IN_INTERRUPT = 1 [L8830] FCALL ldv_initialize() [L8948] tmp___0 = __VERIFIER_nondet_int() [L8950] COND TRUE tmp___0 != 0 VAL [__this_module={18446744073709551633:18446744073709551644}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_s_if_ops_tty_operations=0, resp_type={697:0}, tmp___0=1, zsau_resp={698:0}] [L8835] tmp = __VERIFIER_nondet_int() [L8837] COND TRUE tmp == 0 VAL [__this_module={18446744073709551633:18446744073709551644}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_s_if_ops_tty_operations=0, resp_type={697:0}, tmp=0, tmp___0=1, zsau_resp={698:0}] [L8873] COND TRUE ldv_s_if_ops_tty_operations == 0 VAL [__this_module={18446744073709551633:18446744073709551644}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_s_if_ops_tty_operations=0, resp_type={697:0}, tmp=0, tmp___0=1, zsau_resp={698:0}] [L8875] CALL, EXPR if_open(var_group1, var_group2) VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551633:18446744073709551644}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, resp_type={697:0}, zsau_resp={698:0}] [L7634] struct cardstate *cs ; [L7635] unsigned long flags ; [L7636] long tmp ; [L7637] int tmp___0 ; [L7638] int tmp___1 ; [L7639] raw_spinlock_t *tmp___2 ; [L7642-L7643] tmp = __builtin_expect((long )(((unsigned int )gigaset_debuglevel & 524288U) != 0U), 0L) VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551633:18446744073709551644}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, filp={18446744073709551634:18446744073709551620}, filp={18446744073709551634:18446744073709551620}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, resp_type={697:0}, tmp=1, tty={691:711}, tty={691:711}, zsau_resp={698:0}] [L7645] COND TRUE tmp != 0L [L7647] EXPR tty->driver [L7647] (tty->driver)->minor_start [L7647] tty->index [L7652] tty->driver_data = (void *)0 [L7653] CALL, EXPR gigaset_get_cs_by_tty(tty) [L6958] struct cardstate *tmp ; [L6960] EXPR tty->index VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551633:18446744073709551644}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, resp_type={697:0}, tty={691:711}, tty={691:711}, tty->index=0, zsau_resp={698:0}] [L6960] COND FALSE !(tty->index < 0) [L6963] EXPR tty->index [L6963] EXPR tty->driver [L6963] EXPR (tty->driver)->num VAL [(tty->driver)->num=705, \old(ldv_module_refcounter)=1, __this_module={18446744073709551633:18446744073709551644}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, resp_type={697:0}, tty={691:711}, tty={691:711}, tty->driver={18446744073709551618:0}, tty->index=0, zsau_resp={698:0}] [L6963] COND FALSE !(tty->index >= (tty->driver)->num) [L6968] EXPR tty->index [L6968] EXPR tty->driver [L6968] EXPR (tty->driver)->minor_start [L6968] CALL, EXPR gigaset_get_cs_by_minor((unsigned int )(tty->index + (tty->driver)->minor_start)) [L6902] unsigned long flags ; [L6903] struct cardstate *ret ; [L6904] struct gigaset_driver *drv ; [L6905] unsigned int index ; [L6906] raw_spinlock_t *tmp ; [L6907] struct list_head const *__mptr ; [L6908] struct list_head const *__mptr___0 ; [L6911] ret = (struct cardstate *)0 VAL [\old(ldv_module_refcounter)=1, \old(minor)=0, __this_module={18446744073709551633:18446744073709551644}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, minor=0, resp_type={697:0}, ret={0:0}, zsau_resp={698:0}] [L6912] CALL, EXPR spinlock_check(& driver_lock) VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551633:18446744073709551644}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, lock={692:0}, resp_type={697:0}, zsau_resp={698:0}] [L4691] return (& lock->ldv_6060.rlock); VAL [\old(ldv_module_refcounter)=1, \result={692:0}, __this_module={18446744073709551633:18446744073709551644}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, lock={692:0}, lock={692:0}, resp_type={697:0}, zsau_resp={698:0}] [L6912] RET, EXPR spinlock_check(& driver_lock) VAL [\old(ldv_module_refcounter)=1, \old(minor)=0, __this_module={18446744073709551633:18446744073709551644}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, minor=0, resp_type={697:0}, ret={0:0}, spinlock_check(& driver_lock)={692:0}, zsau_resp={698:0}] [L6912] tmp = spinlock_check(& driver_lock) [L6913] CALL, EXPR _raw_spin_lock_irqsave(tmp) VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551633:18446744073709551644}, arg0={692:0}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, resp_type={697:0}, zsau_resp={698:0}] [L16743] return __VERIFIER_nondet_ulong(); [L6913] RET, EXPR _raw_spin_lock_irqsave(tmp) VAL [\old(ldv_module_refcounter)=1, \old(minor)=0, __this_module={18446744073709551633:18446744073709551644}, _raw_spin_lock_irqsave(tmp)=18446744073709551650, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, minor=0, resp_type={697:0}, ret={0:0}, tmp={692:0}, zsau_resp={698:0}] [L6913] flags = _raw_spin_lock_irqsave(tmp) [L6914] EXPR drivers.next [L6914] __mptr = (struct list_head const *)drivers.next [L6915] drv = (struct gigaset_driver *)__mptr VAL [\old(ldv_module_refcounter)=1, \old(minor)=0, __mptr={0:0}, __this_module={18446744073709551633:18446744073709551644}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, drv={0:0}, flags=34, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, minor=0, resp_type={697:0}, ret={0:0}, tmp={692:0}, zsau_resp={698:0}] [L6945] COND TRUE (unsigned long )(& drv->list) != (unsigned long )(& drivers) VAL [\old(ldv_module_refcounter)=1, \old(minor)=0, __mptr={0:0}, __this_module={18446744073709551633:18446744073709551644}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, drv={0:0}, flags=34, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, minor=0, resp_type={697:0}, ret={0:0}, tmp={692:0}, zsau_resp={698:0}] [L6919] EXPR drv->minor VAL [\old(ldv_module_refcounter)=1, \old(minor)=0, __mptr={0:0}, __this_module={18446744073709551633:18446744073709551644}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, drv={0:0}, drv->minor=0, flags=34, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, minor=0, resp_type={697:0}, ret={0:0}, tmp={692:0}, zsau_resp={698:0}] [L6919] COND FALSE !(drv->minor > minor) [L6922] EXPR drv->minor [L6922] EXPR drv->minors VAL [\old(ldv_module_refcounter)=1, \old(minor)=0, __mptr={0:0}, __this_module={18446744073709551633:18446744073709551644}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, drv={0:0}, drv->minor=0, drv->minors=4294967297, flags=34, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, minor=0, resp_type={697:0}, ret={0:0}, tmp={692:0}, zsau_resp={698:0}] [L6922] COND FALSE !(drv->minor + drv->minors <= minor) [L6927] EXPR drv->minor [L6927] index = minor - drv->minor [L6928] CALL spin_lock(& drv->lock) VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551633:18446744073709551644}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, resp_type={697:0}, zsau_resp={698:0}] [L4698] FCALL _raw_spin_lock(& lock->ldv_6060.rlock) [L6928] RET spin_lock(& drv->lock) VAL [\old(ldv_module_refcounter)=1, \old(minor)=0, __mptr={0:0}, __this_module={18446744073709551633:18446744073709551644}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, drv={0:0}, flags=34, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, index=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, minor=0, resp_type={697:0}, ret={0:0}, tmp={692:0}, zsau_resp={698:0}] [L6930] EXPR drv->cs [L6930] EXPR (drv->cs + (unsigned long )index)->flags VAL [(drv->cs + (unsigned long )index)->flags=18446744073709551637, \old(ldv_module_refcounter)=1, \old(minor)=0, __mptr={0:0}, __this_module={18446744073709551633:18446744073709551644}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, drv={0:0}, drv->cs={691:1242}, flags=34, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, index=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, minor=0, resp_type={697:0}, ret={0:0}, tmp={692:0}, zsau_resp={698:0}] [L6930] COND TRUE (int )(drv->cs + (unsigned long )index)->flags & 1 [L6931] EXPR drv->cs [L6931] ret = drv->cs + (unsigned long )index [L6935] CALL spin_unlock(& drv->lock) VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551633:18446744073709551644}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, resp_type={697:0}, zsau_resp={698:0}] [L4707] FCALL _raw_spin_unlock(& lock->ldv_6060.rlock) [L6935] RET spin_unlock(& drv->lock) VAL [\old(ldv_module_refcounter)=1, \old(minor)=0, __mptr={0:0}, __this_module={18446744073709551633:18446744073709551644}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, drv={0:0}, flags=34, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, index=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, minor=0, resp_type={697:0}, ret={691:1242}, tmp={692:0}, zsau_resp={698:0}] [L6937] COND TRUE (unsigned long )ret != (unsigned long )((struct cardstate *)0) VAL [\old(ldv_module_refcounter)=1, \old(minor)=0, __mptr={0:0}, __this_module={18446744073709551633:18446744073709551644}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, drv={0:0}, flags=34, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, index=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, minor=0, resp_type={697:0}, ret={691:1242}, tmp={692:0}, zsau_resp={698:0}] [L6952] CALL spin_unlock_irqrestore(& driver_lock, flags) VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551633:18446744073709551644}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, resp_type={697:0}, zsau_resp={698:0}] [L4716] FCALL _raw_spin_unlock_irqrestore(& lock->ldv_6060.rlock, flags) [L6952] RET spin_unlock_irqrestore(& driver_lock, flags) VAL [\old(ldv_module_refcounter)=1, \old(minor)=0, __mptr={0:0}, __this_module={18446744073709551633:18446744073709551644}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, drv={0:0}, flags=34, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, index=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, minor=0, resp_type={697:0}, ret={691:1242}, tmp={692:0}, zsau_resp={698:0}] [L6954] return (ret); VAL [\old(ldv_module_refcounter)=1, \old(minor)=0, \result={691:1242}, __mptr={0:0}, __this_module={18446744073709551633:18446744073709551644}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, drv={0:0}, flags=34, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, index=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, minor=0, resp_type={697:0}, ret={691:1242}, tmp={692:0}, zsau_resp={698:0}] [L6968] RET, EXPR gigaset_get_cs_by_minor((unsigned int )(tty->index + (tty->driver)->minor_start)) [L6968] tmp = gigaset_get_cs_by_minor((unsigned int )(tty->index + (tty->driver)->minor_start)) [L6970] return (tmp); VAL [\old(ldv_module_refcounter)=1, \result={691:1242}, __this_module={18446744073709551633:18446744073709551644}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, resp_type={697:0}, tmp={691:1242}, tty={691:711}, tty={691:711}, zsau_resp={698:0}] [L7653] RET, EXPR gigaset_get_cs_by_tty(tty) [L7653] cs = gigaset_get_cs_by_tty(tty) [L7655] COND FALSE !((unsigned long )cs == (unsigned long )((struct cardstate *)0)) [L7659] EXPR cs->driver [L7659] EXPR (cs->driver)->owner VAL [(cs->driver)->owner={-705:706}, \old(ldv_module_refcounter)=1, __this_module={18446744073709551633:18446744073709551644}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, cs={691:1242}, cs->driver={18446744073709551641:-127}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, filp={18446744073709551634:18446744073709551620}, filp={18446744073709551634:18446744073709551620}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, resp_type={697:0}, tmp=1, tty={691:711}, tty={691:711}, zsau_resp={698:0}] [L7659] CALL, EXPR ldv_try_module_get_1((cs->driver)->owner) VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551633:18446744073709551644}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, resp_type={697:0}, zsau_resp={698:0}] [L7175] int tmp ; [L7178] CALL, EXPR ldv_try_module_get(module) [L7113] int module_get_succeeded ; VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551633:18446744073709551644}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, module={-705:706}, module={-705:706}, resp_type={697:0}, zsau_resp={698:0}] [L7115] COND TRUE (unsigned long )module != (unsigned long )((struct module *)0) [L7117] CALL, EXPR ldv_undefined_int() [L16866] return __VERIFIER_nondet_int(); [L7117] RET, EXPR ldv_undefined_int() [L7117] module_get_succeeded = ldv_undefined_int() [L7119] COND TRUE module_get_succeeded == 1 [L7120] ldv_module_refcounter = ldv_module_refcounter + 1 [L7121] return (1); VAL [\old(ldv_module_refcounter)=1, \result=1, __this_module={18446744073709551633:18446744073709551644}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, module={-705:706}, module={-705:706}, module_get_succeeded=1, resp_type={697:0}, zsau_resp={698:0}] [L7178] RET, EXPR ldv_try_module_get(module) [L7178] tmp = ldv_try_module_get(module) [L7180] return (tmp); VAL [\old(ldv_module_refcounter)=1, \result=1, __this_module={18446744073709551633:18446744073709551644}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, module={-705:706}, module={-705:706}, resp_type={697:0}, tmp=1, zsau_resp={698:0}] [L7659] RET, EXPR ldv_try_module_get_1((cs->driver)->owner) VAL [(cs->driver)->owner={-705:706}, \old(ldv_module_refcounter)=1, __this_module={18446744073709551633:18446744073709551644}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, cs={691:1242}, cs->driver={18446744073709551641:-127}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, filp={18446744073709551634:18446744073709551620}, filp={18446744073709551634:18446744073709551620}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, ldv_try_module_get_1((cs->driver)->owner)=1, resp_type={697:0}, tmp=1, tty={691:711}, tty={691:711}, zsau_resp={698:0}] [L7659] tmp___0 = ldv_try_module_get_1((cs->driver)->owner) [L7661] COND FALSE !(tmp___0 == 0) VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551633:18446744073709551644}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, cs={691:1242}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, filp={18446744073709551634:18446744073709551620}, filp={18446744073709551634:18446744073709551620}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, resp_type={697:0}, tmp=1, tmp___0=1, tty={691:711}, tty={691:711}, zsau_resp={698:0}] [L7667] CALL, EXPR mutex_lock_interruptible_nested(& cs->mutex, 0U) VAL [\old(arg1)=0, \old(ldv_module_refcounter)=1, __this_module={18446744073709551633:18446744073709551644}, arg0={691:1840}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, resp_type={697:0}, zsau_resp={698:0}] [L16884] return __VERIFIER_nondet_int(); [L7667] RET, EXPR mutex_lock_interruptible_nested(& cs->mutex, 0U) VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551633:18446744073709551644}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, cs={691:1242}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, filp={18446744073709551634:18446744073709551620}, filp={18446744073709551634:18446744073709551620}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, mutex_lock_interruptible_nested(& cs->mutex, 0U)=0, resp_type={697:0}, tmp=1, tmp___0=1, tty={691:711}, tty={691:711}, zsau_resp={698:0}] [L7667] tmp___1 = mutex_lock_interruptible_nested(& cs->mutex, 0U) [L7669] COND FALSE !(tmp___1 != 0) [L7676] tty->driver_data = (void *)cs [L7677] EXPR cs->open_count [L7677] cs->open_count = cs->open_count + 1U [L7678] EXPR cs->open_count VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551633:18446744073709551644}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, cs={691:1242}, cs->open_count=710, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, filp={18446744073709551634:18446744073709551620}, filp={18446744073709551634:18446744073709551620}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, resp_type={697:0}, tmp=1, tmp___0=1, tmp___1=0, tty={691:711}, tty={691:711}, zsau_resp={698:0}] [L7678] COND FALSE !(cs->open_count == 1U) [L7689] FCALL mutex_unlock(& cs->mutex) VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709551633:18446744073709551644}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, cs={691:1242}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, filp={18446744073709551634:18446744073709551620}, filp={18446744073709551634:18446744073709551620}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, resp_type={697:0}, tmp=1, tmp___0=1, tmp___1=0, tty={691:711}, tty={691:711}, zsau_resp={698:0}] [L7691] return (0); VAL [\old(ldv_module_refcounter)=1, \result=0, __this_module={18446744073709551633:18446744073709551644}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, cs={691:1242}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, filp={18446744073709551634:18446744073709551620}, filp={18446744073709551634:18446744073709551620}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, resp_type={697:0}, tmp=1, tmp___0=1, tmp___1=0, tty={691:711}, tty={691:711}, zsau_resp={698:0}] [L8875] RET, EXPR if_open(var_group1, var_group2) VAL [__this_module={18446744073709551633:18446744073709551644}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_open(var_group1, var_group2)=0, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, ldv_s_if_ops_tty_operations=0, resp_type={697:0}, tmp=0, tmp___0=1, var_group1={691:711}, var_group2={18446744073709551634:18446744073709551620}, zsau_resp={698:0}] [L8875] res_if_open_2 = if_open(var_group1, var_group2) [L8876] FCALL ldv_check_return_value(res_if_open_2) [L8878] COND FALSE !(res_if_open_2 != 0) [L8882] ldv_s_if_ops_tty_operations = ldv_s_if_ops_tty_operations + 1 VAL [__this_module={18446744073709551633:18446744073709551644}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, ldv_s_if_ops_tty_operations=1, res_if_open_2=0, resp_type={697:0}, tmp=0, tmp___0=1, var_group1={691:711}, var_group2={18446744073709551634:18446744073709551620}, zsau_resp={698:0}] [L8948] tmp___0 = __VERIFIER_nondet_int() [L8950] COND TRUE tmp___0 != 0 VAL [__this_module={18446744073709551633:18446744073709551644}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, ldv_s_if_ops_tty_operations=1, res_if_open_2=0, resp_type={697:0}, tmp=0, tmp___0=1, var_group1={691:711}, var_group2={18446744073709551634:18446744073709551620}, zsau_resp={698:0}] [L8835] tmp = __VERIFIER_nondet_int() [L8837] COND FALSE !(tmp == 0) VAL [__this_module={18446744073709551633:18446744073709551644}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, ldv_s_if_ops_tty_operations=1, res_if_open_2=0, resp_type={697:0}, tmp=1, tmp___0=1, var_group1={691:711}, var_group2={18446744073709551634:18446744073709551620}, zsau_resp={698:0}] [L8840] COND TRUE tmp == 1 VAL [__this_module={18446744073709551633:18446744073709551644}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, ldv_s_if_ops_tty_operations=1, res_if_open_2=0, resp_type={697:0}, tmp=1, tmp___0=1, var_group1={691:711}, var_group2={18446744073709551634:18446744073709551620}, zsau_resp={698:0}] [L8887] COND TRUE ldv_s_if_ops_tty_operations == 1 [L8889] CALL if_close(var_group1, var_group2) [L7695] struct cardstate *cs ; [L7696] unsigned long flags ; [L7697] long tmp ; [L7698] raw_spinlock_t *tmp___0 ; [L7699] long tmp___1 ; [L7701] EXPR tty->driver_data [L7701] cs = (struct cardstate *)tty->driver_data [L7702] COND TRUE (unsigned long )cs == (unsigned long )((struct cardstate *)0) [L8889] RET if_close(var_group1, var_group2) [L8890] ldv_s_if_ops_tty_operations = 0 VAL [__this_module={18446744073709551633:18446744073709551644}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, ldv_s_if_ops_tty_operations=0, res_if_open_2=0, resp_type={697:0}, tmp=1, tmp___0=1, var_group1={691:711}, var_group2={18446744073709551634:18446744073709551620}, zsau_resp={698:0}] [L8948] tmp___0 = __VERIFIER_nondet_int() [L8950] COND FALSE !(tmp___0 != 0) VAL [__this_module={18446744073709551633:18446744073709551644}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, ldv_s_if_ops_tty_operations=0, res_if_open_2=0, resp_type={697:0}, tmp=1, tmp___0=0, var_group1={691:711}, var_group2={18446744073709551634:18446744073709551620}, zsau_resp={698:0}] [L8953] COND FALSE !(ldv_s_if_ops_tty_operations != 0) VAL [__this_module={18446744073709551633:18446744073709551644}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, ldv_s_if_ops_tty_operations=0, res_if_open_2=0, resp_type={697:0}, tmp=1, tmp___0=0, var_group1={691:711}, var_group2={18446744073709551634:18446744073709551620}, zsau_resp={698:0}] [L8961] CALL ldv_check_final_state() [L7165] COND TRUE ldv_module_refcounter != 1 VAL [__this_module={18446744073709551633:18446744073709551644}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, resp_type={697:0}, zsau_resp={698:0}] [L7167] CALL ldv_blast_assert() VAL [__this_module={18446744073709551633:18446744073709551644}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, resp_type={697:0}, zsau_resp={698:0}] [L7097] reach_error() VAL [__this_module={18446744073709551633:18446744073709551644}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, resp_type={697:0}, zsau_resp={698:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 44 procedures, 662 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 115.7s, OverallIterations: 13, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 89.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 7 mSolverCounterUnknown, 18806 SdHoareTripleChecker+Valid, 85.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 18129 mSDsluCounter, 43698 SdHoareTripleChecker+Invalid, 79.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 31869 mSDsCounter, 7463 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 26453 IncrementalHoareTripleChecker+Invalid, 33923 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7463 mSolverCounterUnsat, 11829 mSDtfsCounter, 26453 mSolverCounterSat, 0.4s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 408 GetRequests, 270 SyntacticMatches, 1 SemanticMatches, 137 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 274 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3885occurred in iteration=11, InterpolantAutomatonStates: 130, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.1s AutomataMinimizationTime, 12 MinimizatonAttempts, 5148 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 14.2s SatisfiabilityAnalysisTime, 5.0s InterpolantComputationTime, 942 NumberOfCodeBlocks, 942 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 825 ConstructedInterpolants, 0 QuantifiedInterpolants, 2081 SizeOfPredicates, 0 NumberOfNonLiveVariables, 8127 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 13 InterpolantComputations, 12 PerfectInterpolantSequences, 58/60 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-20 06:14:38,283 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-isdn-gigaset-gigaset.ko.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/bin/uautomizer-DQz5hQGWxF --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 6344be269056834d180d9b5e1136d4ee678a64c336fe877230b0ca721a1da138 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 06:14:40,734 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 06:14:40,737 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 06:14:40,768 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 06:14:40,769 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 06:14:40,770 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 06:14:40,772 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 06:14:40,775 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 06:14:40,778 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 06:14:40,779 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 06:14:40,781 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 06:14:40,782 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 06:14:40,783 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 06:14:40,784 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 06:14:40,786 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 06:14:40,788 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 06:14:40,789 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 06:14:40,790 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 06:14:40,793 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 06:14:40,796 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 06:14:40,798 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 06:14:40,800 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 06:14:40,802 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 06:14:40,803 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 06:14:40,807 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 06:14:40,808 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 06:14:40,808 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 06:14:40,810 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 06:14:40,811 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 06:14:40,812 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 06:14:40,813 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 06:14:40,814 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 06:14:40,815 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 06:14:40,816 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 06:14:40,818 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 06:14:40,818 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 06:14:40,819 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 06:14:40,820 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 06:14:40,820 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 06:14:40,822 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 06:14:40,823 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 06:14:40,824 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2021-11-20 06:14:40,864 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 06:14:40,864 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 06:14:40,865 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 06:14:40,865 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 06:14:40,866 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 06:14:40,866 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 06:14:40,867 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 06:14:40,867 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 06:14:40,867 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 06:14:40,868 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 06:14:40,868 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 06:14:40,868 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 06:14:40,868 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 06:14:40,869 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 06:14:40,869 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-20 06:14:40,869 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-20 06:14:40,869 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-20 06:14:40,869 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 06:14:40,870 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 06:14:40,870 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 06:14:40,872 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 06:14:40,873 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 06:14:40,873 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 06:14:40,874 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 06:14:40,874 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 06:14:40,874 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 06:14:40,875 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 06:14:40,875 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-20 06:14:40,876 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-20 06:14:40,876 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-20 06:14:40,876 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-20 06:14:40,876 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 06:14:40,877 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 06:14:40,877 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-20 06:14:40,877 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_f874acd3-5635-46cd-898e-56f53c43013a/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6344be269056834d180d9b5e1136d4ee678a64c336fe877230b0ca721a1da138 [2021-11-20 06:14:41,296 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 06:14:41,334 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 06:14:41,338 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 06:14:41,341 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 06:14:41,342 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 06:14:41,344 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-isdn-gigaset-gigaset.ko.cil.out.i [2021-11-20 06:14:41,415 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/bin/uautomizer-DQz5hQGWxF/data/a5ba5a70d/c223ac8ccb7e4a599b5e6cccece15879/FLAGa4016f9b1 [2021-11-20 06:14:42,782 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 06:14:42,784 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-isdn-gigaset-gigaset.ko.cil.out.i [2021-11-20 06:14:42,859 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/bin/uautomizer-DQz5hQGWxF/data/a5ba5a70d/c223ac8ccb7e4a599b5e6cccece15879/FLAGa4016f9b1 [2021-11-20 06:14:42,921 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/bin/uautomizer-DQz5hQGWxF/data/a5ba5a70d/c223ac8ccb7e4a599b5e6cccece15879 [2021-11-20 06:14:42,924 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 06:14:42,927 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 06:14:42,930 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 06:14:42,930 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 06:14:42,934 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 06:14:42,934 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:14:42" (1/1) ... [2021-11-20 06:14:42,935 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11fbb45c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:14:42, skipping insertion in model container [2021-11-20 06:14:42,936 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:14:42" (1/1) ... [2021-11-20 06:14:42,944 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 06:14:43,171 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 06:14:45,264 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-isdn-gigaset-gigaset.ko.cil.out.i[190502,190515] [2021-11-20 06:14:45,944 WARN L1533 CHandler]: Possible shadowing of function abort [2021-11-20 06:14:45,949 WARN L1533 CHandler]: Possible shadowing of function abort [2021-11-20 06:14:45,949 WARN L1533 CHandler]: Possible shadowing of function abort [2021-11-20 06:14:45,958 WARN L1533 CHandler]: Possible shadowing of function abort [2021-11-20 06:14:47,432 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:14:47,524 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-20 06:14:47,722 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 06:14:47,926 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-isdn-gigaset-gigaset.ko.cil.out.i[190502,190515] [2021-11-20 06:14:48,010 WARN L1533 CHandler]: Possible shadowing of function abort [2021-11-20 06:14:48,016 WARN L1533 CHandler]: Possible shadowing of function abort [2021-11-20 06:14:48,016 WARN L1533 CHandler]: Possible shadowing of function abort [2021-11-20 06:14:48,021 WARN L1533 CHandler]: Possible shadowing of function abort [2021-11-20 06:14:48,404 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:14:48,471 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 06:14:48,906 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-isdn-gigaset-gigaset.ko.cil.out.i[190502,190515] [2021-11-20 06:14:49,026 WARN L1533 CHandler]: Possible shadowing of function abort [2021-11-20 06:14:49,030 WARN L1533 CHandler]: Possible shadowing of function abort [2021-11-20 06:14:49,045 WARN L1533 CHandler]: Possible shadowing of function abort [2021-11-20 06:14:49,050 WARN L1533 CHandler]: Possible shadowing of function abort [2021-11-20 06:14:49,452 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:14:49,749 INFO L208 MainTranslator]: Completed translation [2021-11-20 06:14:49,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:14:49 WrapperNode [2021-11-20 06:14:49,750 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 06:14:49,751 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 06:14:49,751 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 06:14:49,753 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 06:14:49,761 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:14:49" (1/1) ... [2021-11-20 06:14:49,919 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:14:49" (1/1) ... [2021-11-20 06:14:50,229 INFO L137 Inliner]: procedures = 367, calls = 6444, calls flagged for inlining = 156, calls inlined = 36, statements flattened = 4438 [2021-11-20 06:14:50,230 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 06:14:50,232 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 06:14:50,233 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 06:14:50,233 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 06:14:50,246 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:14:49" (1/1) ... [2021-11-20 06:14:50,246 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:14:49" (1/1) ... [2021-11-20 06:14:50,273 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:14:49" (1/1) ... [2021-11-20 06:14:50,273 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:14:49" (1/1) ... [2021-11-20 06:14:50,389 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:14:49" (1/1) ... [2021-11-20 06:14:50,408 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:14:49" (1/1) ... [2021-11-20 06:14:50,433 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:14:49" (1/1) ... [2021-11-20 06:14:50,469 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 06:14:50,471 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 06:14:50,471 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 06:14:50,471 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 06:14:50,472 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:14:49" (1/1) ... [2021-11-20 06:14:50,483 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 06:14:50,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:14:50,511 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 06:14:50,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 06:14:50,573 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_schedule_event [2021-11-20 06:14:50,573 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_schedule_event [2021-11-20 06:14:50,573 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-20 06:14:50,573 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-11-20 06:14:50,574 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-20 06:14:50,574 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-20 06:14:50,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-20 06:14:50,574 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_add_event [2021-11-20 06:14:50,574 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_add_event [2021-11-20 06:14:50,575 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-11-20 06:14:50,575 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-11-20 06:14:50,575 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-20 06:14:50,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-20 06:14:50,575 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2021-11-20 06:14:50,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2021-11-20 06:14:50,576 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_3 [2021-11-20 06:14:50,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_3 [2021-11-20 06:14:50,576 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2021-11-20 06:14:50,576 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2021-11-20 06:14:50,577 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-20 06:14:50,577 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-20 06:14:50,578 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_UINT~X~C_UINT~TO~C_INT [2021-11-20 06:14:50,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_UINT~X~C_UINT~TO~C_INT [2021-11-20 06:14:50,578 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_dbg_buffer [2021-11-20 06:14:50,578 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_dbg_buffer [2021-11-20 06:14:50,579 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-20 06:14:50,579 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-20 06:14:50,579 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 06:14:50,580 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-20 06:14:50,580 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-20 06:14:50,580 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-20 06:14:50,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-20 06:14:50,580 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2021-11-20 06:14:50,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2021-11-20 06:14:50,581 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 06:14:50,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-20 06:14:50,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-20 06:14:50,582 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-11-20 06:14:50,583 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-11-20 06:14:50,584 INFO L130 BoogieDeclarations]: Found specification of procedure if_tiocmget [2021-11-20 06:14:50,584 INFO L138 BoogieDeclarations]: Found implementation of procedure if_tiocmget [2021-11-20 06:14:50,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-20 06:14:50,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-20 06:14:50,584 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_UINT~TO~C_INT [2021-11-20 06:14:50,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_UINT~TO~C_INT [2021-11-20 06:14:50,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-20 06:14:50,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-20 06:14:50,585 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-20 06:14:50,586 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-20 06:14:50,586 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-11-20 06:14:50,587 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-11-20 06:14:50,587 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-11-20 06:14:50,587 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-11-20 06:14:50,587 INFO L130 BoogieDeclarations]: Found specification of procedure if_chars_in_buffer [2021-11-20 06:14:50,587 INFO L138 BoogieDeclarations]: Found implementation of procedure if_chars_in_buffer [2021-11-20 06:14:50,588 INFO L130 BoogieDeclarations]: Found specification of procedure if_write_room [2021-11-20 06:14:50,588 INFO L138 BoogieDeclarations]: Found implementation of procedure if_write_room [2021-11-20 06:14:50,588 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-20 06:14:50,588 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-20 06:14:50,589 INFO L130 BoogieDeclarations]: Found specification of procedure if_throttle [2021-11-20 06:14:50,589 INFO L138 BoogieDeclarations]: Found implementation of procedure if_throttle [2021-11-20 06:14:50,590 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2021-11-20 06:14:50,590 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2021-11-20 06:14:50,591 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-11-20 06:14:50,591 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-11-20 06:14:50,591 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get_1 [2021-11-20 06:14:50,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get_1 [2021-11-20 06:14:50,591 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-20 06:14:50,592 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-20 06:14:50,592 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2021-11-20 06:14:50,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2021-11-20 06:14:50,593 INFO L130 BoogieDeclarations]: Found specification of procedure single_release [2021-11-20 06:14:50,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-20 06:14:50,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-20 06:14:50,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-20 06:14:50,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-20 06:14:50,595 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2021-11-20 06:14:50,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2021-11-20 06:14:50,595 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-20 06:14:50,596 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-11-20 06:14:50,596 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-11-20 06:14:50,596 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 06:14:50,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-20 06:14:50,596 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-20 06:14:50,597 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-20 06:14:50,597 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-20 06:14:50,597 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-20 06:14:50,597 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2021-11-20 06:14:50,597 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2021-11-20 06:14:50,597 INFO L130 BoogieDeclarations]: Found specification of procedure if_tiocmset [2021-11-20 06:14:50,598 INFO L138 BoogieDeclarations]: Found implementation of procedure if_tiocmset [2021-11-20 06:14:50,598 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2021-11-20 06:14:50,598 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2021-11-20 06:14:50,599 INFO L130 BoogieDeclarations]: Found specification of procedure if_open [2021-11-20 06:14:50,599 INFO L138 BoogieDeclarations]: Found implementation of procedure if_open [2021-11-20 06:14:50,599 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-20 06:14:50,601 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-20 06:14:50,601 INFO L130 BoogieDeclarations]: Found specification of procedure setflags [2021-11-20 06:14:50,602 INFO L138 BoogieDeclarations]: Found implementation of procedure setflags [2021-11-20 06:14:50,603 INFO L130 BoogieDeclarations]: Found specification of procedure if_unthrottle [2021-11-20 06:14:50,606 INFO L138 BoogieDeclarations]: Found implementation of procedure if_unthrottle [2021-11-20 06:14:50,607 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-20 06:14:50,607 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2021-11-20 06:14:50,608 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2021-11-20 06:14:50,610 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 06:14:50,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 06:14:50,610 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-11-20 06:14:50,610 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-11-20 06:14:51,204 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 06:14:51,206 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 06:14:55,587 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2021-11-20 06:14:55,588 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2021-11-20 06:14:56,545 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##8: assume !false; [2021-11-20 06:14:56,546 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##7: assume false; [2021-11-20 06:14:56,546 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5012-1: ~tmp~4#1.base, ~tmp~4#1.offset := #t~ret76#1.base, #t~ret76#1.offset;havoc #t~ret76#1.base, #t~ret76#1.offset;~__ptr~0#1.base, ~__ptr~0#1.offset := ~tmp~4#1.base, ~tmp~4#1.offset; [2021-11-20 06:14:56,546 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5012: SUMMARY for call #t~ret76#1.base, #t~ret76#1.offset := get_current(); srcloc: null [2021-11-20 06:14:56,549 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-20 06:14:56,551 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-20 06:14:56,554 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-20 06:14:57,127 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##26: assume !false; [2021-11-20 06:14:57,127 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##25: assume false; [2021-11-20 06:14:57,127 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##61: assume false; [2021-11-20 06:14:57,127 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##62: assume !false; [2021-11-20 06:14:57,127 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##41: assume !false; [2021-11-20 06:14:57,128 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##40: assume false; [2021-11-20 06:14:57,728 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-20 06:14:57,732 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-20 06:14:57,742 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-20 06:18:40,940 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##170: assume !false;call ULTIMATE.dealloc(if_version_~#version~0#1.base, if_version_~#version~0#1.offset);havoc if_version_~#version~0#1.base, if_version_~#version~0#1.offset;call ULTIMATE.dealloc(if_version_~#compat~0#1.base, if_version_~#compat~0#1.offset);havoc if_version_~#compat~0#1.base, if_version_~#compat~0#1.offset;call ULTIMATE.dealloc(if_version_~#__wait~4#1.base, if_version_~#__wait~4#1.offset);havoc if_version_~#__wait~4#1.base, if_version_~#__wait~4#1.offset; [2021-11-20 06:18:40,941 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##75: assume !false; [2021-11-20 06:18:40,941 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##74: assume false; [2021-11-20 06:18:40,941 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##79: assume !false; [2021-11-20 06:18:40,941 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##78: assume false; [2021-11-20 06:18:40,941 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##147: assume !false; [2021-11-20 06:18:40,941 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##24: assume !false; [2021-11-20 06:18:40,941 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##23: assume false; [2021-11-20 06:18:40,942 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##146: assume false; [2021-11-20 06:18:40,942 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##169: assume false; [2021-11-20 06:18:40,942 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##111: assume false; [2021-11-20 06:18:40,942 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##112: assume !false; [2021-11-20 06:18:40,942 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##117: assume !false; [2021-11-20 06:18:40,942 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##116: assume false; [2021-11-20 06:18:40,979 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 06:18:40,995 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 06:18:40,995 INFO L301 CfgBuilder]: Removed 6 assume(true) statements. [2021-11-20 06:18:40,999 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:18:40 BoogieIcfgContainer [2021-11-20 06:18:40,999 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 06:18:41,000 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 06:18:41,001 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 06:18:41,004 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 06:18:41,004 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 06:14:42" (1/3) ... [2021-11-20 06:18:41,005 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ae08791 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:18:41, skipping insertion in model container [2021-11-20 06:18:41,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:14:49" (2/3) ... [2021-11-20 06:18:41,005 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ae08791 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:18:41, skipping insertion in model container [2021-11-20 06:18:41,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:18:40" (3/3) ... [2021-11-20 06:18:41,007 INFO L111 eAbstractionObserver]: Analyzing ICFG module_get_put-drivers-isdn-gigaset-gigaset.ko.cil.out.i [2021-11-20 06:18:41,012 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 06:18:41,012 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 06:18:41,073 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 06:18:41,080 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-20 06:18:41,080 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-20 06:18:41,115 INFO L276 IsEmpty]: Start isEmpty. Operand has 643 states, 491 states have (on average 1.4114052953156824) internal successors, (693), 504 states have internal predecessors, (693), 112 states have call successors, (112), 39 states have call predecessors, (112), 39 states have return successors, (112), 111 states have call predecessors, (112), 112 states have call successors, (112) [2021-11-20 06:18:41,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-20 06:18:41,121 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:18:41,122 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:18:41,123 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:18:41,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:18:41,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1604531392, now seen corresponding path program 1 times [2021-11-20 06:18:41,160 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 06:18:41,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1135576346] [2021-11-20 06:18:41,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:18:41,162 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 06:18:41,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 06:18:41,175 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 06:18:41,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-20 06:18:50,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:18:51,605 INFO L263 TraceCheckSpWp]: Trace formula consists of 7532 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 06:18:51,616 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:18:51,873 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-20 06:18:51,873 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:18:52,024 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-20 06:18:52,025 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 06:18:52,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1135576346] [2021-11-20 06:18:52,026 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1135576346] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 06:18:52,026 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:18:52,026 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [] total 3 [2021-11-20 06:18:52,028 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273765501] [2021-11-20 06:18:52,029 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 06:18:52,034 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 06:18:52,035 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 06:18:52,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 06:18:52,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 06:18:52,081 INFO L87 Difference]: Start difference. First operand has 643 states, 491 states have (on average 1.4114052953156824) internal successors, (693), 504 states have internal predecessors, (693), 112 states have call successors, (112), 39 states have call predecessors, (112), 39 states have return successors, (112), 111 states have call predecessors, (112), 112 states have call successors, (112) 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, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2021-11-20 06:18:52,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:18:52,390 INFO L93 Difference]: Finished difference Result 1905 states and 2769 transitions. [2021-11-20 06:18:52,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 06:18:52,393 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, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 22 [2021-11-20 06:18:52,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:18:52,422 INFO L225 Difference]: With dead ends: 1905 [2021-11-20 06:18:52,422 INFO L226 Difference]: Without dead ends: 1259 [2021-11-20 06:18:52,432 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 06:18:52,436 INFO L933 BasicCegarLoop]: 1034 mSDtfsCounter, 883 mSDsluCounter, 891 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 883 SdHoareTripleChecker+Valid, 1925 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 06:18:52,437 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [883 Valid, 1925 Invalid, 10 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 06:18:52,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1259 states. [2021-11-20 06:18:52,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1259 to 1256. [2021-11-20 06:18:52,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1256 states, 959 states have (on average 1.4014598540145986) internal successors, (1344), 982 states have internal predecessors, (1344), 220 states have call successors, (220), 77 states have call predecessors, (220), 76 states have return successors, (223), 216 states have call predecessors, (223), 218 states have call successors, (223) [2021-11-20 06:18:52,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1256 states to 1256 states and 1787 transitions. [2021-11-20 06:18:52,634 INFO L78 Accepts]: Start accepts. Automaton has 1256 states and 1787 transitions. Word has length 22 [2021-11-20 06:18:52,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:18:52,635 INFO L470 AbstractCegarLoop]: Abstraction has 1256 states and 1787 transitions. [2021-11-20 06:18:52,636 INFO L471 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, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2021-11-20 06:18:52,636 INFO L276 IsEmpty]: Start isEmpty. Operand 1256 states and 1787 transitions. [2021-11-20 06:18:52,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-20 06:18:52,642 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:18:52,643 INFO L514 BasicCegarLoop]: 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] [2021-11-20 06:18:52,801 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-20 06:18:52,866 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 06:18:52,867 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:18:52,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:18:52,868 INFO L85 PathProgramCache]: Analyzing trace with hash 263024063, now seen corresponding path program 1 times [2021-11-20 06:18:52,888 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 06:18:52,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [970543262] [2021-11-20 06:18:52,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:18:52,889 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 06:18:52,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 06:18:52,890 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 06:18:52,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-20 06:19:01,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:19:02,577 INFO L263 TraceCheckSpWp]: Trace formula consists of 7584 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 06:19:02,582 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:19:02,789 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-20 06:19:02,790 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:19:02,980 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-20 06:19:02,981 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 06:19:02,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [970543262] [2021-11-20 06:19:02,981 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [970543262] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 06:19:02,981 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:19:02,981 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-20 06:19:02,982 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223368524] [2021-11-20 06:19:02,982 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 06:19:02,983 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 06:19:02,983 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 06:19:02,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 06:19:02,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-20 06:19:02,984 INFO L87 Difference]: Start difference. First operand 1256 states and 1787 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-11-20 06:19:03,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:19:03,628 INFO L93 Difference]: Finished difference Result 3425 states and 5051 transitions. [2021-11-20 06:19:03,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 06:19:03,629 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (9), 2 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 42 [2021-11-20 06:19:03,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:19:03,652 INFO L225 Difference]: With dead ends: 3425 [2021-11-20 06:19:03,652 INFO L226 Difference]: Without dead ends: 2175 [2021-11-20 06:19:03,658 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-20 06:19:03,660 INFO L933 BasicCegarLoop]: 1023 mSDtfsCounter, 517 mSDsluCounter, 1976 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 624 SdHoareTripleChecker+Valid, 2999 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-20 06:19:03,661 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [624 Valid, 2999 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-20 06:19:03,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2175 states. [2021-11-20 06:19:03,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2175 to 2175. [2021-11-20 06:19:03,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2175 states, 1666 states have (on average 1.436374549819928) internal successors, (2393), 1717 states have internal predecessors, (2393), 432 states have call successors, (432), 77 states have call predecessors, (432), 76 states have return successors, (439), 424 states have call predecessors, (439), 430 states have call successors, (439) [2021-11-20 06:19:03,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2175 states to 2175 states and 3264 transitions. [2021-11-20 06:19:03,788 INFO L78 Accepts]: Start accepts. Automaton has 2175 states and 3264 transitions. Word has length 42 [2021-11-20 06:19:03,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:19:03,789 INFO L470 AbstractCegarLoop]: Abstraction has 2175 states and 3264 transitions. [2021-11-20 06:19:03,789 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-11-20 06:19:03,789 INFO L276 IsEmpty]: Start isEmpty. Operand 2175 states and 3264 transitions. [2021-11-20 06:19:03,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-20 06:19:03,793 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:19:03,794 INFO L514 BasicCegarLoop]: 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] [2021-11-20 06:19:03,953 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-20 06:19:04,010 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 06:19:04,011 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:19:04,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:19:04,012 INFO L85 PathProgramCache]: Analyzing trace with hash -1647183611, now seen corresponding path program 1 times [2021-11-20 06:19:04,021 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 06:19:04,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1537715001] [2021-11-20 06:19:04,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:19:04,022 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 06:19:04,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 06:19:04,023 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 06:19:04,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-20 06:19:13,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:19:14,130 INFO L263 TraceCheckSpWp]: Trace formula consists of 7615 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-20 06:19:14,135 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:19:14,428 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-20 06:19:14,429 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:19:14,701 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-20 06:19:14,702 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 06:19:14,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1537715001] [2021-11-20 06:19:14,702 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1537715001] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 06:19:14,702 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:19:14,702 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 5 [2021-11-20 06:19:14,702 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371066547] [2021-11-20 06:19:14,703 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 06:19:14,703 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 06:19:14,703 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 06:19:14,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 06:19:14,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:19:14,704 INFO L87 Difference]: Start difference. First operand 2175 states and 3264 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2021-11-20 06:19:17,325 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:19:18,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:19:18,000 INFO L93 Difference]: Finished difference Result 6377 states and 9595 transitions. [2021-11-20 06:19:18,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 06:19:18,002 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 47 [2021-11-20 06:19:18,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:19:18,035 INFO L225 Difference]: With dead ends: 6377 [2021-11-20 06:19:18,035 INFO L226 Difference]: Without dead ends: 4209 [2021-11-20 06:19:18,048 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 88 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-20 06:19:18,052 INFO L933 BasicCegarLoop]: 1079 mSDtfsCounter, 1519 mSDsluCounter, 1975 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 224 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1533 SdHoareTripleChecker+Valid, 3054 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 224 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2021-11-20 06:19:18,057 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1533 Valid, 3054 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [224 Valid, 104 Invalid, 1 Unknown, 0 Unchecked, 3.0s Time] [2021-11-20 06:19:18,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4209 states. [2021-11-20 06:19:18,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4209 to 4119. [2021-11-20 06:19:18,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4119 states, 3166 states have (on average 1.4396715097915351) internal successors, (4558), 3255 states have internal predecessors, (4558), 800 states have call successors, (800), 153 states have call predecessors, (800), 152 states have return successors, (816), 786 states have call predecessors, (816), 798 states have call successors, (816) [2021-11-20 06:19:18,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4119 states to 4119 states and 6174 transitions. [2021-11-20 06:19:18,324 INFO L78 Accepts]: Start accepts. Automaton has 4119 states and 6174 transitions. Word has length 47 [2021-11-20 06:19:18,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:19:18,325 INFO L470 AbstractCegarLoop]: Abstraction has 4119 states and 6174 transitions. [2021-11-20 06:19:18,329 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2021-11-20 06:19:18,329 INFO L276 IsEmpty]: Start isEmpty. Operand 4119 states and 6174 transitions. [2021-11-20 06:19:18,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-20 06:19:18,334 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:19:18,335 INFO L514 BasicCegarLoop]: 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] [2021-11-20 06:19:18,533 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-20 06:19:18,558 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 06:19:18,559 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:19:18,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:19:18,559 INFO L85 PathProgramCache]: Analyzing trace with hash -1506635001, now seen corresponding path program 1 times [2021-11-20 06:19:18,573 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 06:19:18,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [895287865] [2021-11-20 06:19:18,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:19:18,574 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 06:19:18,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 06:19:18,575 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 06:19:18,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-20 06:19:27,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:19:28,766 INFO L263 TraceCheckSpWp]: Trace formula consists of 7615 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-20 06:19:28,772 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:19:29,032 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-20 06:19:29,032 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:19:29,265 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-20 06:19:29,265 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 06:19:29,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [895287865] [2021-11-20 06:19:29,265 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [895287865] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 06:19:29,265 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:19:29,265 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-20 06:19:29,266 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531682852] [2021-11-20 06:19:29,266 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 06:19:29,266 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 06:19:29,266 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 06:19:29,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 06:19:29,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-20 06:19:29,267 INFO L87 Difference]: Start difference. First operand 4119 states and 6174 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-11-20 06:19:29,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:19:29,703 INFO L93 Difference]: Finished difference Result 8255 states and 12423 transitions. [2021-11-20 06:19:29,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 06:19:29,705 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 2 states have call successors, (9), 2 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 47 [2021-11-20 06:19:29,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:19:29,744 INFO L225 Difference]: With dead ends: 8255 [2021-11-20 06:19:29,744 INFO L226 Difference]: Without dead ends: 4143 [2021-11-20 06:19:29,760 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-20 06:19:29,763 INFO L933 BasicCegarLoop]: 898 mSDtfsCounter, 8 mSDsluCounter, 2684 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 3582 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-20 06:19:29,765 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 3582 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-20 06:19:29,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4143 states. [2021-11-20 06:19:30,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4143 to 4131. [2021-11-20 06:19:30,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4131 states, 3176 states have (on average 1.438287153652393) internal successors, (4568), 3267 states have internal predecessors, (4568), 800 states have call successors, (800), 153 states have call predecessors, (800), 154 states have return successors, (820), 786 states have call predecessors, (820), 798 states have call successors, (820) [2021-11-20 06:19:30,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4131 states to 4131 states and 6188 transitions. [2021-11-20 06:19:30,053 INFO L78 Accepts]: Start accepts. Automaton has 4131 states and 6188 transitions. Word has length 47 [2021-11-20 06:19:30,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:19:30,055 INFO L470 AbstractCegarLoop]: Abstraction has 4131 states and 6188 transitions. [2021-11-20 06:19:30,056 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-11-20 06:19:30,056 INFO L276 IsEmpty]: Start isEmpty. Operand 4131 states and 6188 transitions. [2021-11-20 06:19:30,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-20 06:19:30,062 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:19:30,063 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:19:30,204 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-20 06:19:30,286 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 06:19:30,287 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:19:30,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:19:30,287 INFO L85 PathProgramCache]: Analyzing trace with hash 1166731535, now seen corresponding path program 1 times [2021-11-20 06:19:30,293 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 06:19:30,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [425759919] [2021-11-20 06:19:30,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:19:30,294 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 06:19:30,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 06:19:30,294 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 06:19:30,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-20 06:19:38,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:19:40,183 INFO L263 TraceCheckSpWp]: Trace formula consists of 7630 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-20 06:19:40,187 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:19:40,443 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-20 06:19:40,443 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:19:40,818 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-20 06:19:40,818 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 06:19:40,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [425759919] [2021-11-20 06:19:40,818 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [425759919] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 06:19:40,818 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:19:40,818 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-20 06:19:40,819 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199721310] [2021-11-20 06:19:40,819 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 06:19:40,819 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-20 06:19:40,819 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 06:19:40,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-20 06:19:40,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-20 06:19:40,820 INFO L87 Difference]: Start difference. First operand 4131 states and 6188 transitions. Second operand has 8 states, 8 states have (on average 6.5) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (8), 4 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-20 06:19:41,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:19:41,061 INFO L93 Difference]: Finished difference Result 8301 states and 12433 transitions. [2021-11-20 06:19:41,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-20 06:19:41,062 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (8), 4 states have call predecessors, (8), 2 states have call successors, (8) Word has length 59 [2021-11-20 06:19:41,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:19:41,100 INFO L225 Difference]: With dead ends: 8301 [2021-11-20 06:19:41,100 INFO L226 Difference]: Without dead ends: 4165 [2021-11-20 06:19:41,122 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-20 06:19:41,123 INFO L933 BasicCegarLoop]: 898 mSDtfsCounter, 9 mSDsluCounter, 3587 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 4485 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 06:19:41,124 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 4485 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 06:19:41,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4165 states. [2021-11-20 06:19:41,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4165 to 4142. [2021-11-20 06:19:41,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4142 states, 3183 states have (on average 1.4373232799245994) internal successors, (4575), 3277 states have internal predecessors, (4575), 800 states have call successors, (800), 153 states have call predecessors, (800), 158 states have return successors, (830), 787 states have call predecessors, (830), 798 states have call successors, (830) [2021-11-20 06:19:41,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4142 states to 4142 states and 6205 transitions. [2021-11-20 06:19:41,380 INFO L78 Accepts]: Start accepts. Automaton has 4142 states and 6205 transitions. Word has length 59 [2021-11-20 06:19:41,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:19:41,381 INFO L470 AbstractCegarLoop]: Abstraction has 4142 states and 6205 transitions. [2021-11-20 06:19:41,381 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (8), 4 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-20 06:19:41,381 INFO L276 IsEmpty]: Start isEmpty. Operand 4142 states and 6205 transitions. [2021-11-20 06:19:41,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-20 06:19:41,386 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:19:41,386 INFO L514 BasicCegarLoop]: 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] [2021-11-20 06:19:41,566 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-11-20 06:19:41,598 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 06:19:41,599 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:19:41,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:19:41,599 INFO L85 PathProgramCache]: Analyzing trace with hash 1526216861, now seen corresponding path program 1 times [2021-11-20 06:19:41,606 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 06:19:41,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2008909378] [2021-11-20 06:19:41,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:19:41,607 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 06:19:41,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 06:19:41,608 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 06:19:41,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-20 06:19:50,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:19:51,742 INFO L263 TraceCheckSpWp]: Trace formula consists of 7677 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-20 06:19:51,746 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:19:52,279 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-20 06:19:52,279 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:19:52,828 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-20 06:19:52,828 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 06:19:52,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2008909378] [2021-11-20 06:19:52,829 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2008909378] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 06:19:52,829 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:19:52,829 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-11-20 06:19:52,829 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821665501] [2021-11-20 06:19:52,830 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 06:19:52,830 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-20 06:19:52,830 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 06:19:52,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-20 06:19:52,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-20 06:19:52,831 INFO L87 Difference]: Start difference. First operand 4142 states and 6205 transitions. Second operand has 10 states, 10 states have (on average 6.0) internal successors, (60), 10 states have internal predecessors, (60), 4 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2021-11-20 06:19:54,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:19:54,571 INFO L93 Difference]: Finished difference Result 8393 states and 12637 transitions. [2021-11-20 06:19:54,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-20 06:19:54,573 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.0) internal successors, (60), 10 states have internal predecessors, (60), 4 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 66 [2021-11-20 06:19:54,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:19:54,610 INFO L225 Difference]: With dead ends: 8393 [2021-11-20 06:19:54,610 INFO L226 Difference]: Without dead ends: 4258 [2021-11-20 06:19:54,629 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2021-11-20 06:19:54,630 INFO L933 BasicCegarLoop]: 905 mSDtfsCounter, 64 mSDsluCounter, 5400 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 6305 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-20 06:19:54,630 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [68 Valid, 6305 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-20 06:19:54,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4258 states. [2021-11-20 06:19:54,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4258 to 4162. [2021-11-20 06:19:54,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4162 states, 3195 states have (on average 1.4356807511737089) internal successors, (4587), 3289 states have internal predecessors, (4587), 808 states have call successors, (808), 153 states have call predecessors, (808), 158 states have return successors, (838), 795 states have call predecessors, (838), 806 states have call successors, (838) [2021-11-20 06:19:54,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4162 states to 4162 states and 6233 transitions. [2021-11-20 06:19:54,870 INFO L78 Accepts]: Start accepts. Automaton has 4162 states and 6233 transitions. Word has length 66 [2021-11-20 06:19:54,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:19:54,870 INFO L470 AbstractCegarLoop]: Abstraction has 4162 states and 6233 transitions. [2021-11-20 06:19:54,871 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.0) internal successors, (60), 10 states have internal predecessors, (60), 4 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2021-11-20 06:19:54,872 INFO L276 IsEmpty]: Start isEmpty. Operand 4162 states and 6233 transitions. [2021-11-20 06:19:54,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-20 06:19:54,875 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:19:54,876 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:19:55,055 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-20 06:19:55,090 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 06:19:55,091 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:19:55,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:19:55,091 INFO L85 PathProgramCache]: Analyzing trace with hash 2074200846, now seen corresponding path program 1 times [2021-11-20 06:19:55,101 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 06:19:55,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [82677586] [2021-11-20 06:19:55,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:19:55,101 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 06:19:55,101 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 06:19:55,103 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 06:19:55,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-20 06:20:03,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:20:04,583 INFO L263 TraceCheckSpWp]: Trace formula consists of 7716 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-20 06:20:04,588 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:20:04,909 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-20 06:20:04,909 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:20:05,246 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-20 06:20:05,246 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 06:20:05,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [82677586] [2021-11-20 06:20:05,246 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [82677586] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 06:20:05,246 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:20:05,246 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-11-20 06:20:05,246 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739574465] [2021-11-20 06:20:05,247 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 06:20:05,247 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 06:20:05,247 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 06:20:05,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 06:20:05,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-20 06:20:05,248 INFO L87 Difference]: Start difference. First operand 4162 states and 6233 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-20 06:20:05,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:20:05,550 INFO L93 Difference]: Finished difference Result 7396 states and 11006 transitions. [2021-11-20 06:20:05,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 06:20:05,551 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) Word has length 82 [2021-11-20 06:20:05,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:20:05,577 INFO L225 Difference]: With dead ends: 7396 [2021-11-20 06:20:05,577 INFO L226 Difference]: Without dead ends: 3241 [2021-11-20 06:20:05,594 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-20 06:20:05,595 INFO L933 BasicCegarLoop]: 899 mSDtfsCounter, 4 mSDsluCounter, 3589 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 4488 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 06:20:05,596 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 4488 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 06:20:05,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3241 states. [2021-11-20 06:20:05,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3241 to 3233. [2021-11-20 06:20:05,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3233 states, 2488 states have (on average 1.4204180064308682) internal successors, (3534), 2556 states have internal predecessors, (3534), 590 states have call successors, (590), 149 states have call predecessors, (590), 154 states have return successors, (610), 581 states have call predecessors, (610), 588 states have call successors, (610) [2021-11-20 06:20:05,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3233 states to 3233 states and 4734 transitions. [2021-11-20 06:20:05,760 INFO L78 Accepts]: Start accepts. Automaton has 3233 states and 4734 transitions. Word has length 82 [2021-11-20 06:20:05,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:20:05,760 INFO L470 AbstractCegarLoop]: Abstraction has 3233 states and 4734 transitions. [2021-11-20 06:20:05,761 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2021-11-20 06:20:05,761 INFO L276 IsEmpty]: Start isEmpty. Operand 3233 states and 4734 transitions. [2021-11-20 06:20:05,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-20 06:20:05,765 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:20:05,765 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1] [2021-11-20 06:20:05,948 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-20 06:20:05,978 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 06:20:05,979 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:20:05,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:20:05,979 INFO L85 PathProgramCache]: Analyzing trace with hash -575124009, now seen corresponding path program 1 times [2021-11-20 06:20:05,992 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 06:20:05,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [71827963] [2021-11-20 06:20:05,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:20:05,992 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 06:20:05,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 06:20:05,993 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 06:20:06,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-20 06:20:14,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:20:15,430 INFO L263 TraceCheckSpWp]: Trace formula consists of 7700 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-20 06:20:15,434 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:20:15,715 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-20 06:20:15,716 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:20:16,299 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-20 06:20:16,300 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 06:20:16,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [71827963] [2021-11-20 06:20:16,300 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [71827963] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 06:20:16,300 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:20:16,300 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-11-20 06:20:16,300 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454553867] [2021-11-20 06:20:16,301 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 06:20:16,301 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-20 06:20:16,301 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 06:20:16,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-20 06:20:16,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-20 06:20:16,302 INFO L87 Difference]: Start difference. First operand 3233 states and 4734 transitions. Second operand has 10 states, 10 states have (on average 6.4) internal successors, (64), 8 states have internal predecessors, (64), 2 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (10), 4 states have call predecessors, (10), 1 states have call successors, (10) [2021-11-20 06:20:16,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:20:16,575 INFO L93 Difference]: Finished difference Result 5333 states and 7890 transitions. [2021-11-20 06:20:16,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 06:20:16,576 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.4) internal successors, (64), 8 states have internal predecessors, (64), 2 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (10), 4 states have call predecessors, (10), 1 states have call successors, (10) Word has length 81 [2021-11-20 06:20:16,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:20:16,603 INFO L225 Difference]: With dead ends: 5333 [2021-11-20 06:20:16,604 INFO L226 Difference]: Without dead ends: 3237 [2021-11-20 06:20:16,616 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-11-20 06:20:16,616 INFO L933 BasicCegarLoop]: 903 mSDtfsCounter, 16 mSDsluCounter, 5366 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 6269 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 06:20:16,617 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 6269 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 06:20:16,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3237 states. [2021-11-20 06:20:16,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3237 to 3233. [2021-11-20 06:20:16,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3233 states, 2488 states have (on average 1.4196141479099678) internal successors, (3532), 2556 states have internal predecessors, (3532), 590 states have call successors, (590), 149 states have call predecessors, (590), 154 states have return successors, (610), 581 states have call predecessors, (610), 588 states have call successors, (610) [2021-11-20 06:20:16,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3233 states to 3233 states and 4732 transitions. [2021-11-20 06:20:16,766 INFO L78 Accepts]: Start accepts. Automaton has 3233 states and 4732 transitions. Word has length 81 [2021-11-20 06:20:16,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:20:16,767 INFO L470 AbstractCegarLoop]: Abstraction has 3233 states and 4732 transitions. [2021-11-20 06:20:16,767 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.4) internal successors, (64), 8 states have internal predecessors, (64), 2 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (10), 4 states have call predecessors, (10), 1 states have call successors, (10) [2021-11-20 06:20:16,768 INFO L276 IsEmpty]: Start isEmpty. Operand 3233 states and 4732 transitions. [2021-11-20 06:20:16,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-20 06:20:16,775 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:20:16,775 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:20:16,946 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-11-20 06:20:16,994 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 06:20:16,995 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:20:16,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:20:16,995 INFO L85 PathProgramCache]: Analyzing trace with hash -631103340, now seen corresponding path program 1 times [2021-11-20 06:20:17,003 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 06:20:17,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [386722056] [2021-11-20 06:20:17,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:20:17,004 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 06:20:17,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 06:20:17,005 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 06:20:17,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-20 06:20:25,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:20:26,754 INFO L263 TraceCheckSpWp]: Trace formula consists of 7719 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-20 06:20:26,760 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:20:27,527 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-20 06:20:27,527 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:20:28,440 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-20 06:20:28,440 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 06:20:28,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [386722056] [2021-11-20 06:20:28,441 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [386722056] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 06:20:28,441 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:20:28,441 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 6] imperfect sequences [] total 10 [2021-11-20 06:20:28,441 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940278507] [2021-11-20 06:20:28,441 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 06:20:28,442 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-20 06:20:28,442 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 06:20:28,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-20 06:20:28,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-11-20 06:20:28,443 INFO L87 Difference]: Start difference. First operand 3233 states and 4732 transitions. Second operand has 10 states, 10 states have (on average 11.9) internal successors, (119), 10 states have internal predecessors, (119), 5 states have call successors, (23), 8 states have call predecessors, (23), 5 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2021-11-20 06:20:31,348 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.90s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:20:33,372 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:20:36,786 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:20:39,239 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:20:44,691 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:20:46,701 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:20:50,496 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:20:52,508 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:20:57,982 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:20:59,993 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:21:04,712 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:21:06,724 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:21:10,881 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:21:12,889 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:21:14,901 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:21:16,914 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:21:19,084 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:21:21,095 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:21:23,106 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:21:25,119 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:21:28,287 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:21:30,298 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:21:32,312 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:21:38,112 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:21:40,118 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:21:42,130 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:21:45,689 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:21:47,700 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:21:49,710 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:21:51,717 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:21:53,730 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:21:57,750 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:21:59,762 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:22:01,773 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:22:03,792 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:22:05,806 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:22:07,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:22:07,995 INFO L93 Difference]: Finished difference Result 12769 states and 18998 transitions. [2021-11-20 06:22:07,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-20 06:22:07,996 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.9) internal successors, (119), 10 states have internal predecessors, (119), 5 states have call successors, (23), 8 states have call predecessors, (23), 5 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) Word has length 84 [2021-11-20 06:22:07,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:22:08,069 INFO L225 Difference]: With dead ends: 12769 [2021-11-20 06:22:08,070 INFO L226 Difference]: Without dead ends: 12759 [2021-11-20 06:22:08,076 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2021-11-20 06:22:08,077 INFO L933 BasicCegarLoop]: 1602 mSDtfsCounter, 9019 mSDsluCounter, 2789 mSDsCounter, 0 mSdLazyCounter, 4507 mSolverCounterSat, 2525 mSolverCounterUnsat, 36 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 95.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9282 SdHoareTripleChecker+Valid, 4391 SdHoareTripleChecker+Invalid, 7068 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2525 IncrementalHoareTripleChecker+Valid, 4507 IncrementalHoareTripleChecker+Invalid, 36 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 98.4s IncrementalHoareTripleChecker+Time [2021-11-20 06:22:08,078 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9282 Valid, 4391 Invalid, 7068 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2525 Valid, 4507 Invalid, 36 Unknown, 0 Unchecked, 98.4s Time] [2021-11-20 06:22:08,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12759 states. [2021-11-20 06:22:08,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12759 to 12132. [2021-11-20 06:22:08,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12132 states, 9325 states have (on average 1.4282037533512064) internal successors, (13318), 9593 states have internal predecessors, (13318), 2273 states have call successors, (2273), 489 states have call predecessors, (2273), 533 states have return successors, (2511), 2262 states have call predecessors, (2511), 2271 states have call successors, (2511) [2021-11-20 06:22:08,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12132 states to 12132 states and 18102 transitions. [2021-11-20 06:22:08,712 INFO L78 Accepts]: Start accepts. Automaton has 12132 states and 18102 transitions. Word has length 84 [2021-11-20 06:22:08,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:22:08,714 INFO L470 AbstractCegarLoop]: Abstraction has 12132 states and 18102 transitions. [2021-11-20 06:22:08,714 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.9) internal successors, (119), 10 states have internal predecessors, (119), 5 states have call successors, (23), 8 states have call predecessors, (23), 5 states have return successors, (18), 4 states have call predecessors, (18), 4 states have call successors, (18) [2021-11-20 06:22:08,715 INFO L276 IsEmpty]: Start isEmpty. Operand 12132 states and 18102 transitions. [2021-11-20 06:22:08,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-11-20 06:22:08,722 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:22:08,722 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:22:08,884 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (10)] Ended with exit code 0 [2021-11-20 06:22:08,944 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 06:22:08,945 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:22:08,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:22:08,945 INFO L85 PathProgramCache]: Analyzing trace with hash -2100447070, now seen corresponding path program 1 times [2021-11-20 06:22:08,953 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 06:22:08,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1343601838] [2021-11-20 06:22:08,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:22:08,954 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 06:22:08,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 06:22:08,955 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 06:22:08,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-20 06:22:17,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:22:18,618 INFO L263 TraceCheckSpWp]: Trace formula consists of 7730 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-20 06:22:18,623 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:22:19,870 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 06:22:19,871 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 69 treesize of output 54 [2021-11-20 06:22:19,928 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 06:22:19,929 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 41 [2021-11-20 06:22:20,535 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-20 06:22:20,535 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:23:01,418 WARN L227 SmtUtils]: Spent 40.32s on a formula simplification. DAG size of input: 74 DAG size of output: 1 (called from [L 231] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2021-11-20 06:23:03,462 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-20 06:23:03,462 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 06:23:03,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1343601838] [2021-11-20 06:23:03,462 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1343601838] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 06:23:03,462 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:23:03,463 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 9] imperfect sequences [] total 14 [2021-11-20 06:23:03,463 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855577540] [2021-11-20 06:23:03,463 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 06:23:03,463 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-20 06:23:03,463 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 06:23:03,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-20 06:23:03,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2021-11-20 06:23:03,464 INFO L87 Difference]: Start difference. First operand 12132 states and 18102 transitions. Second operand has 14 states, 11 states have (on average 7.090909090909091) internal successors, (78), 14 states have internal predecessors, (78), 6 states have call successors, (14), 3 states have call predecessors, (14), 6 states have return successors, (13), 3 states have call predecessors, (13), 5 states have call successors, (13) [2021-11-20 06:23:06,224 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.75s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:23:08,244 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:23:12,037 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:23:14,055 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:23:16,157 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:23:18,170 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:23:20,442 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:23:22,458 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:23:26,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:23:26,868 INFO L93 Difference]: Finished difference Result 21707 states and 32447 transitions. [2021-11-20 06:23:26,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-20 06:23:26,871 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 11 states have (on average 7.090909090909091) internal successors, (78), 14 states have internal predecessors, (78), 6 states have call successors, (14), 3 states have call predecessors, (14), 6 states have return successors, (13), 3 states have call predecessors, (13), 5 states have call successors, (13) Word has length 93 [2021-11-20 06:23:26,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:23:26,928 INFO L225 Difference]: With dead ends: 21707 [2021-11-20 06:23:26,929 INFO L226 Difference]: Without dead ends: 12225 [2021-11-20 06:23:26,964 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 171 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=62, Invalid=280, Unknown=0, NotChecked=0, Total=342 [2021-11-20 06:23:26,965 INFO L933 BasicCegarLoop]: 902 mSDtfsCounter, 36 mSDsluCounter, 6846 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 3 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 7748 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 183 IncrementalHoareTripleChecker+Unchecked, 22.2s IncrementalHoareTripleChecker+Time [2021-11-20 06:23:26,966 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 7748 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 227 Invalid, 8 Unknown, 183 Unchecked, 22.2s Time] [2021-11-20 06:23:26,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12225 states. [2021-11-20 06:23:27,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12225 to 12132. [2021-11-20 06:23:27,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12132 states, 9325 states have (on average 1.4282037533512064) internal successors, (13318), 9593 states have internal predecessors, (13318), 2273 states have call successors, (2273), 497 states have call predecessors, (2273), 533 states have return successors, (2477), 2254 states have call predecessors, (2477), 2271 states have call successors, (2477) [2021-11-20 06:23:27,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12132 states to 12132 states and 18068 transitions. [2021-11-20 06:23:27,605 INFO L78 Accepts]: Start accepts. Automaton has 12132 states and 18068 transitions. Word has length 93 [2021-11-20 06:23:27,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:23:27,605 INFO L470 AbstractCegarLoop]: Abstraction has 12132 states and 18068 transitions. [2021-11-20 06:23:27,606 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 11 states have (on average 7.090909090909091) internal successors, (78), 14 states have internal predecessors, (78), 6 states have call successors, (14), 3 states have call predecessors, (14), 6 states have return successors, (13), 3 states have call predecessors, (13), 5 states have call successors, (13) [2021-11-20 06:23:27,606 INFO L276 IsEmpty]: Start isEmpty. Operand 12132 states and 18068 transitions. [2021-11-20 06:23:27,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-11-20 06:23:27,611 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:23:27,611 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:23:27,849 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-20 06:23:27,942 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 06:23:27,943 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:23:27,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:23:27,943 INFO L85 PathProgramCache]: Analyzing trace with hash -1363964116, now seen corresponding path program 1 times [2021-11-20 06:23:27,955 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 06:23:27,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1473076121] [2021-11-20 06:23:27,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:23:27,956 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 06:23:27,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 06:23:27,957 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 06:23:27,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-20 06:23:36,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:23:37,319 INFO L263 TraceCheckSpWp]: Trace formula consists of 7727 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-20 06:23:37,321 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:23:37,553 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-20 06:23:37,553 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:23:37,824 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-20 06:23:37,824 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 06:23:37,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1473076121] [2021-11-20 06:23:37,824 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1473076121] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 06:23:37,824 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:23:37,824 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-20 06:23:37,824 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093192628] [2021-11-20 06:23:37,824 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 06:23:37,825 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 06:23:37,825 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 06:23:37,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 06:23:37,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:23:37,826 INFO L87 Difference]: Start difference. First operand 12132 states and 18068 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2021-11-20 06:23:38,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:23:38,282 INFO L93 Difference]: Finished difference Result 14694 states and 22239 transitions. [2021-11-20 06:23:38,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 06:23:38,283 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) Word has length 93 [2021-11-20 06:23:38,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:23:38,362 INFO L225 Difference]: With dead ends: 14694 [2021-11-20 06:23:38,362 INFO L226 Difference]: Without dead ends: 14689 [2021-11-20 06:23:38,372 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-20 06:23:38,373 INFO L933 BasicCegarLoop]: 1270 mSDtfsCounter, 286 mSDsluCounter, 3457 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 4727 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 06:23:38,374 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [346 Valid, 4727 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 06:23:38,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14689 states. [2021-11-20 06:23:38,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14689 to 12132. [2021-11-20 06:23:38,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12132 states, 9325 states have (on average 1.4273458445040215) internal successors, (13310), 9593 states have internal predecessors, (13310), 2273 states have call successors, (2273), 497 states have call predecessors, (2273), 533 states have return successors, (2477), 2254 states have call predecessors, (2477), 2271 states have call successors, (2477) [2021-11-20 06:23:39,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12132 states to 12132 states and 18060 transitions. [2021-11-20 06:23:39,016 INFO L78 Accepts]: Start accepts. Automaton has 12132 states and 18060 transitions. Word has length 93 [2021-11-20 06:23:39,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:23:39,016 INFO L470 AbstractCegarLoop]: Abstraction has 12132 states and 18060 transitions. [2021-11-20 06:23:39,016 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2021-11-20 06:23:39,017 INFO L276 IsEmpty]: Start isEmpty. Operand 12132 states and 18060 transitions. [2021-11-20 06:23:39,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-11-20 06:23:39,021 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:23:39,022 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:23:39,188 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-20 06:23:39,222 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 06:23:39,222 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:23:39,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:23:39,223 INFO L85 PathProgramCache]: Analyzing trace with hash 1791418784, now seen corresponding path program 1 times [2021-11-20 06:23:39,232 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 06:23:39,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1432152825] [2021-11-20 06:23:39,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:23:39,233 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 06:23:39,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 06:23:39,234 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 06:23:39,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f874acd3-5635-46cd-898e-56f53c43013a/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-20 06:23:47,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:23:48,916 INFO L263 TraceCheckSpWp]: Trace formula consists of 7731 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-20 06:23:48,918 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:23:49,159 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-20 06:23:49,159 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:23:49,460 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-20 06:23:49,460 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 06:23:49,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1432152825] [2021-11-20 06:23:49,461 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1432152825] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 06:23:49,461 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:23:49,461 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-20 06:23:49,461 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185834395] [2021-11-20 06:23:49,461 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 06:23:49,462 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 06:23:49,462 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 06:23:49,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 06:23:49,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-20 06:23:49,462 INFO L87 Difference]: Start difference. First operand 12132 states and 18060 transitions. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 4 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2021-11-20 06:23:50,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:23:50,650 INFO L93 Difference]: Finished difference Result 19482 states and 28740 transitions.