./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 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/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_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa --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 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 22:14:08,294 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 22:14:08,295 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 22:14:08,325 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 22:14:08,326 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 22:14:08,327 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 22:14:08,328 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 22:14:08,331 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 22:14:08,333 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 22:14:08,334 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 22:14:08,335 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 22:14:08,336 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 22:14:08,337 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 22:14:08,338 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 22:14:08,339 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 22:14:08,341 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 22:14:08,342 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 22:14:08,343 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 22:14:08,345 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 22:14:08,347 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 22:14:08,349 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 22:14:08,350 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 22:14:08,352 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 22:14:08,352 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 22:14:08,356 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 22:14:08,356 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 22:14:08,357 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 22:14:08,358 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 22:14:08,358 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 22:14:08,359 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 22:14:08,360 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 22:14:08,361 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 22:14:08,361 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 22:14:08,362 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 22:14:08,363 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 22:14:08,364 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 22:14:08,365 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 22:14:08,365 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 22:14:08,365 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 22:14:08,366 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 22:14:08,366 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 22:14:08,367 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-06 22:14:08,389 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 22:14:08,389 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 22:14:08,389 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 22:14:08,389 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 22:14:08,390 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 22:14:08,390 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 22:14:08,391 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 22:14:08,391 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 22:14:08,391 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 22:14:08,391 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 22:14:08,391 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 22:14:08,392 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 22:14:08,392 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 22:14:08,392 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 22:14:08,392 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 22:14:08,392 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 22:14:08,392 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 22:14:08,393 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 22:14:08,393 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 22:14:08,393 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 22:14:08,393 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 22:14:08,393 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 22:14:08,394 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 22:14:08,394 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 22:14:08,394 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 22:14:08,394 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 22:14:08,394 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 22:14:08,394 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 22:14:08,395 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 22:14:08,395 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 22:14:08,395 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 22:14:08,395 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_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6344be269056834d180d9b5e1136d4ee678a64c336fe877230b0ca721a1da138 [2021-12-06 22:14:08,578 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 22:14:08,597 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 22:14:08,600 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 22:14:08,601 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 22:14:08,601 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 22:14:08,602 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-isdn-gigaset-gigaset.ko.cil.out.i [2021-12-06 22:14:08,651 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/data/6cdc1699e/1b8cab7bd4dd4bad8dc07f5dad9b4f8e/FLAGc5db07e81 [2021-12-06 22:14:09,313 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 22:14:09,314 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-isdn-gigaset-gigaset.ko.cil.out.i [2021-12-06 22:14:09,349 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/data/6cdc1699e/1b8cab7bd4dd4bad8dc07f5dad9b4f8e/FLAGc5db07e81 [2021-12-06 22:14:09,703 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/data/6cdc1699e/1b8cab7bd4dd4bad8dc07f5dad9b4f8e [2021-12-06 22:14:09,710 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 22:14:09,714 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 22:14:09,717 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 22:14:09,717 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 22:14:09,727 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 22:14:09,728 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 10:14:09" (1/1) ... [2021-12-06 22:14:09,731 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1544ef8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:14:09, skipping insertion in model container [2021-12-06 22:14:09,732 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 10:14:09" (1/1) ... [2021-12-06 22:14:09,750 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 22:14:09,883 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 22:14:10,926 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_348248e7-7f7e-4aee-a264-148cb39e86cc/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-isdn-gigaset-gigaset.ko.cil.out.i[190502,190515] [2021-12-06 22:14:11,315 WARN L1533 CHandler]: Possible shadowing of function abort [2021-12-06 22:14:11,318 WARN L1533 CHandler]: Possible shadowing of function abort [2021-12-06 22:14:11,318 WARN L1533 CHandler]: Possible shadowing of function abort [2021-12-06 22:14:11,322 WARN L1533 CHandler]: Possible shadowing of function abort [2021-12-06 22:14:12,208 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 22:14:12,253 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 22:14:12,489 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_348248e7-7f7e-4aee-a264-148cb39e86cc/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-isdn-gigaset-gigaset.ko.cil.out.i[190502,190515] [2021-12-06 22:14:12,603 WARN L1533 CHandler]: Possible shadowing of function abort [2021-12-06 22:14:12,605 WARN L1533 CHandler]: Possible shadowing of function abort [2021-12-06 22:14:12,605 WARN L1533 CHandler]: Possible shadowing of function abort [2021-12-06 22:14:12,608 WARN L1533 CHandler]: Possible shadowing of function abort [2021-12-06 22:14:12,942 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 22:14:13,084 INFO L208 MainTranslator]: Completed translation [2021-12-06 22:14:13,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:14:13 WrapperNode [2021-12-06 22:14:13,084 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 22:14:13,085 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 22:14:13,085 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 22:14:13,085 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 22:14:13,092 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:14:13" (1/1) ... [2021-12-06 22:14:13,185 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:14:13" (1/1) ... [2021-12-06 22:14:13,310 INFO L137 Inliner]: procedures = 352, calls = 6445, calls flagged for inlining = 152, calls inlined = 32, statements flattened = 4275 [2021-12-06 22:14:13,311 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 22:14:13,311 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 22:14:13,311 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 22:14:13,311 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 22:14:13,319 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:14:13" (1/1) ... [2021-12-06 22:14:13,319 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:14:13" (1/1) ... [2021-12-06 22:14:13,339 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:14:13" (1/1) ... [2021-12-06 22:14:13,339 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:14:13" (1/1) ... [2021-12-06 22:14:13,441 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:14:13" (1/1) ... [2021-12-06 22:14:13,458 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:14:13" (1/1) ... [2021-12-06 22:14:13,480 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:14:13" (1/1) ... [2021-12-06 22:14:13,507 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 22:14:13,508 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 22:14:13,508 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 22:14:13,508 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 22:14:13,509 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:14:13" (1/1) ... [2021-12-06 22:14:13,515 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 22:14:13,524 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:14:13,534 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 22:14:13,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 22:14:13,564 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_schedule_event [2021-12-06 22:14:13,564 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_schedule_event [2021-12-06 22:14:13,564 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2021-12-06 22:14:13,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2021-12-06 22:14:13,565 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-12-06 22:14:13,565 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-06 22:14:13,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-06 22:14:13,565 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_add_event [2021-12-06 22:14:13,565 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_add_event [2021-12-06 22:14:13,565 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-12-06 22:14:13,565 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-12-06 22:14:13,565 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-06 22:14:13,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-06 22:14:13,565 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2021-12-06 22:14:13,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2021-12-06 22:14:13,565 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_3 [2021-12-06 22:14:13,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_3 [2021-12-06 22:14:13,566 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2021-12-06 22:14:13,566 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2021-12-06 22:14:13,566 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-06 22:14:13,566 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-06 22:14:13,566 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_dbg_buffer [2021-12-06 22:14:13,566 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_dbg_buffer [2021-12-06 22:14:13,566 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-06 22:14:13,566 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-06 22:14:13,566 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_enterconfigmode [2021-12-06 22:14:13,566 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_enterconfigmode [2021-12-06 22:14:13,566 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-06 22:14:13,566 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-06 22:14:13,567 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-06 22:14:13,567 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-06 22:14:13,567 INFO L130 BoogieDeclarations]: Found specification of procedure if_ioctl [2021-12-06 22:14:13,567 INFO L138 BoogieDeclarations]: Found implementation of procedure if_ioctl [2021-12-06 22:14:13,567 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2021-12-06 22:14:13,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2021-12-06 22:14:13,567 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 22:14:13,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-06 22:14:13,567 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-12-06 22:14:13,567 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-12-06 22:14:13,567 INFO L130 BoogieDeclarations]: Found specification of procedure if_tiocmget [2021-12-06 22:14:13,567 INFO L138 BoogieDeclarations]: Found implementation of procedure if_tiocmget [2021-12-06 22:14:13,568 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-06 22:14:13,568 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-06 22:14:13,568 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-06 22:14:13,568 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-06 22:14:13,568 INFO L130 BoogieDeclarations]: Found specification of procedure if_config [2021-12-06 22:14:13,568 INFO L138 BoogieDeclarations]: Found implementation of procedure if_config [2021-12-06 22:14:13,568 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-12-06 22:14:13,568 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-12-06 22:14:13,568 INFO L130 BoogieDeclarations]: Found specification of procedure if_chars_in_buffer [2021-12-06 22:14:13,568 INFO L138 BoogieDeclarations]: Found implementation of procedure if_chars_in_buffer [2021-12-06 22:14:13,568 INFO L130 BoogieDeclarations]: Found specification of procedure if_write_room [2021-12-06 22:14:13,568 INFO L138 BoogieDeclarations]: Found implementation of procedure if_write_room [2021-12-06 22:14:13,569 INFO L130 BoogieDeclarations]: Found specification of procedure if_lock [2021-12-06 22:14:13,569 INFO L138 BoogieDeclarations]: Found implementation of procedure if_lock [2021-12-06 22:14:13,569 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-06 22:14:13,569 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-06 22:14:13,569 INFO L130 BoogieDeclarations]: Found specification of procedure if_throttle [2021-12-06 22:14:13,569 INFO L138 BoogieDeclarations]: Found implementation of procedure if_throttle [2021-12-06 22:14:13,569 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2021-12-06 22:14:13,569 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2021-12-06 22:14:13,569 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-06 22:14:13,569 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-12-06 22:14:13,569 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-12-06 22:14:13,569 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get_1 [2021-12-06 22:14:13,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get_1 [2021-12-06 22:14:13,570 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2021-12-06 22:14:13,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2021-12-06 22:14:13,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-06 22:14:13,570 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-06 22:14:13,570 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-06 22:14:13,570 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-06 22:14:13,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-06 22:14:13,570 INFO L130 BoogieDeclarations]: Found specification of procedure single_release [2021-12-06 22:14:13,570 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-06 22:14:13,570 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-12-06 22:14:13,570 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-12-06 22:14:13,570 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 22:14:13,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-06 22:14:13,571 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-06 22:14:13,571 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-06 22:14:13,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-06 22:14:13,571 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2021-12-06 22:14:13,571 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2021-12-06 22:14:13,571 INFO L130 BoogieDeclarations]: Found specification of procedure if_tiocmset [2021-12-06 22:14:13,571 INFO L138 BoogieDeclarations]: Found implementation of procedure if_tiocmset [2021-12-06 22:14:13,571 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2021-12-06 22:14:13,571 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2021-12-06 22:14:13,571 INFO L130 BoogieDeclarations]: Found specification of procedure if_open [2021-12-06 22:14:13,571 INFO L138 BoogieDeclarations]: Found implementation of procedure if_open [2021-12-06 22:14:13,572 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-06 22:14:13,572 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-06 22:14:13,572 INFO L130 BoogieDeclarations]: Found specification of procedure setflags [2021-12-06 22:14:13,572 INFO L138 BoogieDeclarations]: Found implementation of procedure setflags [2021-12-06 22:14:13,572 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-06 22:14:13,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-06 22:14:13,572 INFO L130 BoogieDeclarations]: Found specification of procedure if_unthrottle [2021-12-06 22:14:13,572 INFO L138 BoogieDeclarations]: Found implementation of procedure if_unthrottle [2021-12-06 22:14:13,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 22:14:13,572 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2021-12-06 22:14:13,572 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2021-12-06 22:14:13,572 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 22:14:13,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 22:14:13,573 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-06 22:14:13,573 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-06 22:14:13,857 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 22:14:13,859 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 22:14:14,197 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2021-12-06 22:14:14,197 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2021-12-06 22:14:14,219 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-06 22:14:14,223 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-06 22:14:14,424 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; [2021-12-06 22:14:14,424 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##75: assume false; [2021-12-06 22:14:14,424 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##53: assume !false; [2021-12-06 22:14:14,424 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##52: assume false; [2021-12-06 22:14:14,424 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##43: assume false; [2021-12-06 22:14:14,424 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##44: assume !false; [2021-12-06 22:14:14,424 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##39: assume !false; [2021-12-06 22:14:14,424 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##38: assume false; [2021-12-06 22:14:14,424 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##30: assume !false; [2021-12-06 22:14:14,424 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##29: assume false; [2021-12-06 22:14:14,425 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##26: assume !false; [2021-12-06 22:14:14,425 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##25: assume false; [2021-12-06 22:14:14,532 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##8: assume !false; [2021-12-06 22:14:14,532 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##7: assume false; [2021-12-06 22:14:14,532 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; [2021-12-06 22:14:14,532 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5012: SUMMARY for call #t~ret76#1.base, #t~ret76#1.offset := get_current(); srcloc: null [2021-12-06 22:14:14,534 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-06 22:14:14,534 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-06 22:14:14,535 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-06 22:14:14,620 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##26: assume !false; [2021-12-06 22:14:14,621 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##25: assume false; [2021-12-06 22:14:14,621 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##61: assume false; [2021-12-06 22:14:14,621 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##62: assume !false; [2021-12-06 22:14:14,621 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##41: assume !false; [2021-12-06 22:14:14,621 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##40: assume false; [2021-12-06 22:14:14,784 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-06 22:15:11,840 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##24: assume !false; [2021-12-06 22:15:11,840 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##23: assume false; [2021-12-06 22:15:11,853 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 22:15:11,866 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 22:15:11,866 INFO L301 CfgBuilder]: Removed 6 assume(true) statements. [2021-12-06 22:15:11,868 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 10:15:11 BoogieIcfgContainer [2021-12-06 22:15:11,868 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 22:15:11,869 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 22:15:11,870 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 22:15:11,872 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 22:15:11,872 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 10:14:09" (1/3) ... [2021-12-06 22:15:11,873 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f9b6ba8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 10:15:11, skipping insertion in model container [2021-12-06 22:15:11,873 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:14:13" (2/3) ... [2021-12-06 22:15:11,873 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f9b6ba8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 10:15:11, skipping insertion in model container [2021-12-06 22:15:11,873 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 10:15:11" (3/3) ... [2021-12-06 22:15:11,874 INFO L111 eAbstractionObserver]: Analyzing ICFG module_get_put-drivers-isdn-gigaset-gigaset.ko.cil.out.i [2021-12-06 22:15:11,878 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 22:15:11,878 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 22:15:11,917 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 22:15:11,922 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-06 22:15:11,922 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-06 22:15:11,948 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) [2021-12-06 22:15:11,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-12-06 22:15:11,952 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 22:15:11,953 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 22:15:11,953 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 22:15:11,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:15:11,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1164007444, now seen corresponding path program 1 times [2021-12-06 22:15:11,963 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:15:11,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612076661] [2021-12-06 22:15:11,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:15:11,964 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:15:12,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:15:12,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 22:15:12,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:15:12,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 22:15:12,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:15:12,562 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-06 22:15:12,563 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:15:12,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612076661] [2021-12-06 22:15:12,564 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612076661] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:15:12,564 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:15:12,564 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 22:15:12,566 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791113572] [2021-12-06 22:15:12,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:15:12,570 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 22:15:12,571 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:15:12,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 22:15:12,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 22:15:12,599 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) [2021-12-06 22:15:14,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 22:15:14,610 INFO L93 Difference]: Finished difference Result 2166 states and 3205 transitions. [2021-12-06 22:15:14,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 22:15:14,613 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 [2021-12-06 22:15:14,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 22:15:14,637 INFO L225 Difference]: With dead ends: 2166 [2021-12-06 22:15:14,637 INFO L226 Difference]: Without dead ends: 1501 [2021-12-06 22:15:14,645 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 [2021-12-06 22:15:14,648 INFO L933 BasicCegarLoop]: 1027 mSDtfsCounter, 1607 mSDsluCounter, 1146 mSDsCounter, 0 mSdLazyCounter, 571 mSolverCounterSat, 406 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1697 SdHoareTripleChecker+Valid, 2173 SdHoareTripleChecker+Invalid, 977 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 406 IncrementalHoareTripleChecker+Valid, 571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-12-06 22:15:14,649 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1697 Valid, 2173 Invalid, 977 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [406 Valid, 571 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-12-06 22:15:14,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1501 states. [2021-12-06 22:15:14,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1501 to 1392. [2021-12-06 22:15:14,766 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) [2021-12-06 22:15:14,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1392 states to 1392 states and 1997 transitions. [2021-12-06 22:15:14,777 INFO L78 Accepts]: Start accepts. Automaton has 1392 states and 1997 transitions. Word has length 22 [2021-12-06 22:15:14,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 22:15:14,778 INFO L470 AbstractCegarLoop]: Abstraction has 1392 states and 1997 transitions. [2021-12-06 22:15:14,778 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) [2021-12-06 22:15:14,778 INFO L276 IsEmpty]: Start isEmpty. Operand 1392 states and 1997 transitions. [2021-12-06 22:15:14,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-12-06 22:15:14,782 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 22:15:14,782 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] [2021-12-06 22:15:14,782 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 22:15:14,783 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 22:15:14,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:15:14,783 INFO L85 PathProgramCache]: Analyzing trace with hash 1727764396, now seen corresponding path program 1 times [2021-12-06 22:15:14,783 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:15:14,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116381566] [2021-12-06 22:15:14,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:15:14,784 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:15:14,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:15:15,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 22:15:15,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:15:15,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 22:15:15,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:15:15,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 22:15:15,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:15:15,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-06 22:15:15,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:15:15,177 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-06 22:15:15,178 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:15:15,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116381566] [2021-12-06 22:15:15,178 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116381566] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:15:15,178 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:15:15,178 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 22:15:15,178 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742324660] [2021-12-06 22:15:15,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:15:15,179 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 22:15:15,180 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:15:15,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 22:15:15,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 22:15:15,180 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) [2021-12-06 22:15:16,396 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:15:17,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 22:15:17,221 INFO L93 Difference]: Finished difference Result 3053 states and 4444 transitions. [2021-12-06 22:15:17,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 22:15:17,221 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 [2021-12-06 22:15:17,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 22:15:17,232 INFO L225 Difference]: With dead ends: 3053 [2021-12-06 22:15:17,233 INFO L226 Difference]: Without dead ends: 1667 [2021-12-06 22:15:17,237 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 [2021-12-06 22:15:17,239 INFO L933 BasicCegarLoop]: 931 mSDtfsCounter, 483 mSDsluCounter, 1084 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 152 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 547 SdHoareTripleChecker+Valid, 2015 SdHoareTripleChecker+Invalid, 618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 152 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-12-06 22:15:17,240 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [547 Valid, 2015 Invalid, 618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [152 Valid, 466 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-12-06 22:15:17,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1667 states. [2021-12-06 22:15:17,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1667 to 1561. [2021-12-06 22:15:17,305 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) [2021-12-06 22:15:17,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1561 states to 1561 states and 2278 transitions. [2021-12-06 22:15:17,315 INFO L78 Accepts]: Start accepts. Automaton has 1561 states and 2278 transitions. Word has length 42 [2021-12-06 22:15:17,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 22:15:17,316 INFO L470 AbstractCegarLoop]: Abstraction has 1561 states and 2278 transitions. [2021-12-06 22:15:17,316 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) [2021-12-06 22:15:17,316 INFO L276 IsEmpty]: Start isEmpty. Operand 1561 states and 2278 transitions. [2021-12-06 22:15:17,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-12-06 22:15:17,321 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 22:15:17,321 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] [2021-12-06 22:15:17,322 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-06 22:15:17,322 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 22:15:17,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:15:17,323 INFO L85 PathProgramCache]: Analyzing trace with hash 2016306839, now seen corresponding path program 1 times [2021-12-06 22:15:17,323 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:15:17,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255822863] [2021-12-06 22:15:17,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:15:17,324 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:15:17,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:15:17,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 22:15:17,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:15:17,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 22:15:17,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:15:17,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-06 22:15:17,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:15:17,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-06 22:15:17,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:15:17,747 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-06 22:15:17,747 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:15:17,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255822863] [2021-12-06 22:15:17,748 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255822863] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:15:17,748 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:15:17,748 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 22:15:17,748 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448732546] [2021-12-06 22:15:17,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:15:17,749 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-06 22:15:17,749 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:15:17,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-06 22:15:17,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-06 22:15:17,750 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) [2021-12-06 22:15:20,654 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:15:22,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 22:15:22,361 INFO L93 Difference]: Finished difference Result 3311 states and 4968 transitions. [2021-12-06 22:15:22,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-06 22:15:22,361 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 [2021-12-06 22:15:22,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 22:15:22,372 INFO L225 Difference]: With dead ends: 3311 [2021-12-06 22:15:22,372 INFO L226 Difference]: Without dead ends: 1757 [2021-12-06 22:15:22,379 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 [2021-12-06 22:15:22,380 INFO L933 BasicCegarLoop]: 886 mSDtfsCounter, 1018 mSDsluCounter, 3092 mSDsCounter, 0 mSdLazyCounter, 1872 mSolverCounterSat, 400 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1056 SdHoareTripleChecker+Valid, 3978 SdHoareTripleChecker+Invalid, 2273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 400 IncrementalHoareTripleChecker+Valid, 1872 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2021-12-06 22:15:22,381 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1056 Valid, 3978 Invalid, 2273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [400 Valid, 1872 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2021-12-06 22:15:22,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1757 states. [2021-12-06 22:15:22,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1757 to 1543. [2021-12-06 22:15:22,434 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) [2021-12-06 22:15:22,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2250 transitions. [2021-12-06 22:15:22,441 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2250 transitions. Word has length 47 [2021-12-06 22:15:22,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 22:15:22,442 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2250 transitions. [2021-12-06 22:15:22,442 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) [2021-12-06 22:15:22,442 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2250 transitions. [2021-12-06 22:15:22,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-12-06 22:15:22,444 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 22:15:22,444 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] [2021-12-06 22:15:22,444 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-06 22:15:22,445 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 22:15:22,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:15:22,445 INFO L85 PathProgramCache]: Analyzing trace with hash -2124098365, now seen corresponding path program 1 times [2021-12-06 22:15:22,445 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:15:22,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529247957] [2021-12-06 22:15:22,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:15:22,446 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:15:22,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:15:22,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 22:15:22,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:15:22,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 22:15:22,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:15:22,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-06 22:15:22,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:15:22,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 22:15:22,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:15:22,799 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-06 22:15:22,799 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:15:22,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529247957] [2021-12-06 22:15:22,800 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529247957] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:15:22,800 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:15:22,800 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-06 22:15:22,800 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060227439] [2021-12-06 22:15:22,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:15:22,800 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 22:15:22,801 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:15:22,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 22:15:22,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-12-06 22:15:22,801 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) [2021-12-06 22:15:25,246 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:15:26,320 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:15:28,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 22:15:28,450 INFO L93 Difference]: Finished difference Result 2705 states and 4086 transitions. [2021-12-06 22:15:28,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 22:15:28,451 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 [2021-12-06 22:15:28,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 22:15:28,461 INFO L225 Difference]: With dead ends: 2705 [2021-12-06 22:15:28,461 INFO L226 Difference]: Without dead ends: 1879 [2021-12-06 22:15:28,465 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 [2021-12-06 22:15:28,466 INFO L933 BasicCegarLoop]: 821 mSDtfsCounter, 1069 mSDsluCounter, 3158 mSDsCounter, 0 mSdLazyCounter, 2519 mSolverCounterSat, 461 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1109 SdHoareTripleChecker+Valid, 3979 SdHoareTripleChecker+Invalid, 2980 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 461 IncrementalHoareTripleChecker+Valid, 2519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2021-12-06 22:15:28,467 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1109 Valid, 3979 Invalid, 2980 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [461 Valid, 2519 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2021-12-06 22:15:28,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1879 states. [2021-12-06 22:15:28,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1879 to 1543. [2021-12-06 22:15:28,521 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) [2021-12-06 22:15:28,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2249 transitions. [2021-12-06 22:15:28,528 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2249 transitions. Word has length 46 [2021-12-06 22:15:28,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 22:15:28,529 INFO L470 AbstractCegarLoop]: Abstraction has 1543 states and 2249 transitions. [2021-12-06 22:15:28,529 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) [2021-12-06 22:15:28,529 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2249 transitions. [2021-12-06 22:15:28,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-12-06 22:15:28,532 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 22:15:28,532 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] [2021-12-06 22:15:28,532 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-06 22:15:28,532 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 22:15:28,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:15:28,533 INFO L85 PathProgramCache]: Analyzing trace with hash 436135357, now seen corresponding path program 1 times [2021-12-06 22:15:28,533 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:15:28,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936764167] [2021-12-06 22:15:28,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:15:28,534 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:15:28,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:15:28,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 22:15:28,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:15:28,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 22:15:28,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:15:28,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-12-06 22:15:28,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:15:28,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-06 22:15:28,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:15:28,912 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-06 22:15:28,912 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:15:28,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936764167] [2021-12-06 22:15:28,913 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936764167] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:15:28,913 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:15:28,913 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 22:15:28,913 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316595482] [2021-12-06 22:15:28,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:15:28,914 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 22:15:28,914 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:15:28,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 22:15:28,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-06 22:15:28,915 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) [2021-12-06 22:15:31,019 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:15:32,653 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:15:34,462 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:15:37,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 22:15:37,566 INFO L93 Difference]: Finished difference Result 2773 states and 4194 transitions. [2021-12-06 22:15:37,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-06 22:15:37,566 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 [2021-12-06 22:15:37,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 22:15:37,580 INFO L225 Difference]: With dead ends: 2773 [2021-12-06 22:15:37,580 INFO L226 Difference]: Without dead ends: 2770 [2021-12-06 22:15:37,581 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 [2021-12-06 22:15:37,582 INFO L933 BasicCegarLoop]: 2022 mSDtfsCounter, 3719 mSDsluCounter, 3981 mSDsCounter, 0 mSdLazyCounter, 4420 mSolverCounterSat, 1644 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3801 SdHoareTripleChecker+Valid, 6003 SdHoareTripleChecker+Invalid, 6065 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1644 IncrementalHoareTripleChecker+Valid, 4420 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2021-12-06 22:15:37,582 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3801 Valid, 6003 Invalid, 6065 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1644 Valid, 4420 Invalid, 1 Unknown, 0 Unchecked, 8.5s Time] [2021-12-06 22:15:37,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2770 states. [2021-12-06 22:15:37,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2770 to 2366. [2021-12-06 22:15:37,660 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) [2021-12-06 22:15:37,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2366 states to 2366 states and 3506 transitions. [2021-12-06 22:15:37,667 INFO L78 Accepts]: Start accepts. Automaton has 2366 states and 3506 transitions. Word has length 49 [2021-12-06 22:15:37,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 22:15:37,668 INFO L470 AbstractCegarLoop]: Abstraction has 2366 states and 3506 transitions. [2021-12-06 22:15:37,668 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) [2021-12-06 22:15:37,668 INFO L276 IsEmpty]: Start isEmpty. Operand 2366 states and 3506 transitions. [2021-12-06 22:15:37,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-12-06 22:15:37,670 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 22:15:37,670 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] [2021-12-06 22:15:37,670 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-06 22:15:37,671 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 22:15:37,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:15:37,671 INFO L85 PathProgramCache]: Analyzing trace with hash -419613441, now seen corresponding path program 1 times [2021-12-06 22:15:37,671 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:15:37,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324617435] [2021-12-06 22:15:37,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:15:37,671 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:15:37,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:15:37,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 22:15:37,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:15:37,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 22:15:37,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:15:37,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-06 22:15:37,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:15:37,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-06 22:15:37,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:15:37,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-06 22:15:37,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:15:37,988 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-06 22:15:37,988 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:15:37,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324617435] [2021-12-06 22:15:37,988 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324617435] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:15:37,988 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:15:37,988 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 22:15:37,988 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634393584] [2021-12-06 22:15:37,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:15:37,989 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 22:15:37,989 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:15:37,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 22:15:37,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-06 22:15:37,989 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) [2021-12-06 22:15:41,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 22:15:41,331 INFO L93 Difference]: Finished difference Result 5122 states and 7675 transitions. [2021-12-06 22:15:41,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 22:15:41,332 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 [2021-12-06 22:15:41,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 22:15:41,350 INFO L225 Difference]: With dead ends: 5122 [2021-12-06 22:15:41,350 INFO L226 Difference]: Without dead ends: 2760 [2021-12-06 22:15:41,359 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-06 22:15:41,360 INFO L933 BasicCegarLoop]: 826 mSDtfsCounter, 866 mSDsluCounter, 2381 mSDsCounter, 0 mSdLazyCounter, 1735 mSolverCounterSat, 342 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 893 SdHoareTripleChecker+Valid, 3207 SdHoareTripleChecker+Invalid, 2077 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 342 IncrementalHoareTripleChecker+Valid, 1735 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2021-12-06 22:15:41,361 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [893 Valid, 3207 Invalid, 2077 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [342 Valid, 1735 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2021-12-06 22:15:41,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2760 states. [2021-12-06 22:15:41,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2760 to 2256. [2021-12-06 22:15:41,486 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) [2021-12-06 22:15:41,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2256 states to 2256 states and 3320 transitions. [2021-12-06 22:15:41,495 INFO L78 Accepts]: Start accepts. Automaton has 2256 states and 3320 transitions. Word has length 59 [2021-12-06 22:15:41,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 22:15:41,495 INFO L470 AbstractCegarLoop]: Abstraction has 2256 states and 3320 transitions. [2021-12-06 22:15:41,496 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) [2021-12-06 22:15:41,496 INFO L276 IsEmpty]: Start isEmpty. Operand 2256 states and 3320 transitions. [2021-12-06 22:15:41,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-12-06 22:15:41,498 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 22:15:41,498 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] [2021-12-06 22:15:41,498 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-06 22:15:41,499 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 22:15:41,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:15:41,499 INFO L85 PathProgramCache]: Analyzing trace with hash -1575982952, now seen corresponding path program 1 times [2021-12-06 22:15:41,499 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:15:41,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218946931] [2021-12-06 22:15:41,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:15:41,499 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:15:41,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:15:41,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 22:15:41,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:15:41,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 22:15:41,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:15:41,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-06 22:15:41,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:15:41,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 22:15:41,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:15:41,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-06 22:15:41,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:15:41,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 22:15:41,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:15:41,857 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-06 22:15:41,857 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:15:41,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218946931] [2021-12-06 22:15:41,858 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218946931] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:15:41,858 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:15:41,858 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-06 22:15:41,858 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151733218] [2021-12-06 22:15:41,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:15:41,858 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-06 22:15:41,858 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:15:41,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-06 22:15:41,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-12-06 22:15:41,859 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) [2021-12-06 22:15:43,031 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:15:47,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 22:15:47,108 INFO L93 Difference]: Finished difference Result 3035 states and 4687 transitions. [2021-12-06 22:15:47,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-06 22:15:47,108 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 [2021-12-06 22:15:47,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 22:15:47,127 INFO L225 Difference]: With dead ends: 3035 [2021-12-06 22:15:47,127 INFO L226 Difference]: Without dead ends: 3030 [2021-12-06 22:15:47,129 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 [2021-12-06 22:15:47,129 INFO L933 BasicCegarLoop]: 945 mSDtfsCounter, 1198 mSDsluCounter, 3060 mSDsCounter, 0 mSdLazyCounter, 2145 mSolverCounterSat, 467 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1286 SdHoareTripleChecker+Valid, 4005 SdHoareTripleChecker+Invalid, 2612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 467 IncrementalHoareTripleChecker+Valid, 2145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2021-12-06 22:15:47,130 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1286 Valid, 4005 Invalid, 2612 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [467 Valid, 2145 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2021-12-06 22:15:47,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3030 states. [2021-12-06 22:15:47,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3030 to 2266. [2021-12-06 22:15:47,211 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) [2021-12-06 22:15:47,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2266 states to 2266 states and 3334 transitions. [2021-12-06 22:15:47,219 INFO L78 Accepts]: Start accepts. Automaton has 2266 states and 3334 transitions. Word has length 58 [2021-12-06 22:15:47,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 22:15:47,219 INFO L470 AbstractCegarLoop]: Abstraction has 2266 states and 3334 transitions. [2021-12-06 22:15:47,219 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) [2021-12-06 22:15:47,219 INFO L276 IsEmpty]: Start isEmpty. Operand 2266 states and 3334 transitions. [2021-12-06 22:15:47,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-12-06 22:15:47,221 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 22:15:47,221 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] [2021-12-06 22:15:47,221 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-06 22:15:47,221 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 22:15:47,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:15:47,222 INFO L85 PathProgramCache]: Analyzing trace with hash 669939408, now seen corresponding path program 1 times [2021-12-06 22:15:47,222 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:15:47,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300844561] [2021-12-06 22:15:47,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:15:47,222 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:15:47,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:15:47,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 22:15:47,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:15:47,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 22:15:47,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:15:47,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-06 22:15:47,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:15:47,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 22:15:47,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:15:47,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-06 22:15:47,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:15:47,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-06 22:15:47,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:15:47,588 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-06 22:15:47,588 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:15:47,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300844561] [2021-12-06 22:15:47,588 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300844561] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:15:47,588 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:15:47,588 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-06 22:15:47,588 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114282579] [2021-12-06 22:15:47,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:15:47,589 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-06 22:15:47,589 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:15:47,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-06 22:15:47,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-06 22:15:47,589 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) [2021-12-06 22:15:49,732 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:15:52,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 22:15:52,657 INFO L93 Difference]: Finished difference Result 5122 states and 7969 transitions. [2021-12-06 22:15:52,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 22:15:52,657 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 [2021-12-06 22:15:52,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 22:15:52,671 INFO L225 Difference]: With dead ends: 5122 [2021-12-06 22:15:52,671 INFO L226 Difference]: Without dead ends: 2863 [2021-12-06 22:15:52,679 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 [2021-12-06 22:15:52,679 INFO L933 BasicCegarLoop]: 800 mSDtfsCounter, 1072 mSDsluCounter, 1925 mSDsCounter, 0 mSdLazyCounter, 1630 mSolverCounterSat, 455 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1119 SdHoareTripleChecker+Valid, 2725 SdHoareTripleChecker+Invalid, 2085 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 455 IncrementalHoareTripleChecker+Valid, 1630 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2021-12-06 22:15:52,679 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1119 Valid, 2725 Invalid, 2085 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [455 Valid, 1630 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2021-12-06 22:15:52,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2863 states. [2021-12-06 22:15:52,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2863 to 2272. [2021-12-06 22:15:52,754 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) [2021-12-06 22:15:52,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2272 states to 2272 states and 3340 transitions. [2021-12-06 22:15:52,761 INFO L78 Accepts]: Start accepts. Automaton has 2272 states and 3340 transitions. Word has length 58 [2021-12-06 22:15:52,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 22:15:52,761 INFO L470 AbstractCegarLoop]: Abstraction has 2272 states and 3340 transitions. [2021-12-06 22:15:52,761 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) [2021-12-06 22:15:52,761 INFO L276 IsEmpty]: Start isEmpty. Operand 2272 states and 3340 transitions. [2021-12-06 22:15:52,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-12-06 22:15:52,763 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 22:15:52,763 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] [2021-12-06 22:15:52,763 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-06 22:15:52,764 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 22:15:52,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:15:52,764 INFO L85 PathProgramCache]: Analyzing trace with hash -298738899, now seen corresponding path program 1 times [2021-12-06 22:15:52,764 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:15:52,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309588690] [2021-12-06 22:15:52,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:15:52,764 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:15:52,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:15:53,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 22:15:53,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:15:53,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 22:15:53,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:15:53,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-06 22:15:53,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:15:53,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-06 22:15:53,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:15:53,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 22:15:53,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:15:53,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-06 22:15:53,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:15:53,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-06 22:15:53,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:15:53,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-06 22:15:53,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:15:53,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-06 22:15:53,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:15:53,134 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-06 22:15:53,135 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:15:53,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309588690] [2021-12-06 22:15:53,135 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309588690] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:15:53,135 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:15:53,135 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-06 22:15:53,135 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874283391] [2021-12-06 22:15:53,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:15:53,135 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-06 22:15:53,136 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:15:53,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-06 22:15:53,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-12-06 22:15:53,136 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) [2021-12-06 22:15:55,132 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:15:57,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 22:15:57,917 INFO L93 Difference]: Finished difference Result 5179 states and 8052 transitions. [2021-12-06 22:15:57,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-06 22:15:57,917 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 [2021-12-06 22:15:57,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 22:15:57,931 INFO L225 Difference]: With dead ends: 5179 [2021-12-06 22:15:57,932 INFO L226 Difference]: Without dead ends: 2914 [2021-12-06 22:15:57,940 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2021-12-06 22:15:57,940 INFO L933 BasicCegarLoop]: 823 mSDtfsCounter, 1110 mSDsluCounter, 3183 mSDsCounter, 0 mSdLazyCounter, 2579 mSolverCounterSat, 461 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1155 SdHoareTripleChecker+Valid, 4006 SdHoareTripleChecker+Invalid, 3040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 461 IncrementalHoareTripleChecker+Valid, 2579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2021-12-06 22:15:57,941 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1155 Valid, 4006 Invalid, 3040 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [461 Valid, 2579 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2021-12-06 22:15:57,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2914 states. [2021-12-06 22:15:58,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2914 to 2311. [2021-12-06 22:15:58,018 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) [2021-12-06 22:15:58,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2311 states to 2311 states and 3400 transitions. [2021-12-06 22:15:58,026 INFO L78 Accepts]: Start accepts. Automaton has 2311 states and 3400 transitions. Word has length 77 [2021-12-06 22:15:58,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 22:15:58,026 INFO L470 AbstractCegarLoop]: Abstraction has 2311 states and 3400 transitions. [2021-12-06 22:15:58,027 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) [2021-12-06 22:15:58,027 INFO L276 IsEmpty]: Start isEmpty. Operand 2311 states and 3400 transitions. [2021-12-06 22:15:58,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-12-06 22:15:58,029 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 22:15:58,029 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] [2021-12-06 22:15:58,029 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-06 22:15:58,030 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 22:15:58,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:15:58,030 INFO L85 PathProgramCache]: Analyzing trace with hash -253002884, now seen corresponding path program 1 times [2021-12-06 22:15:58,030 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:15:58,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100824754] [2021-12-06 22:15:58,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:15:58,030 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:16:00,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:16:00,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 22:16:00,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:16:00,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 22:16:00,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:16:00,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-06 22:16:00,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:16:00,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-06 22:16:00,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:16:00,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 22:16:00,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:16:00,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-06 22:16:00,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:16:00,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-06 22:16:00,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:16:00,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 22:16:00,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:16:00,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-06 22:16:00,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:16:00,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-06 22:16:00,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:16:00,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-06 22:16:00,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:16:00,763 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-06 22:16:00,763 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:16:00,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100824754] [2021-12-06 22:16:00,763 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100824754] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:16:00,764 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:16:00,764 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-06 22:16:00,764 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975092509] [2021-12-06 22:16:00,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:16:00,764 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-06 22:16:00,764 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:16:00,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-06 22:16:00,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2021-12-06 22:16:00,765 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) [2021-12-06 22:16:02,299 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:16:04,268 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:16:05,545 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:16:07,032 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:16:08,840 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:16:12,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 22:16:12,415 INFO L93 Difference]: Finished difference Result 4602 states and 7106 transitions. [2021-12-06 22:16:12,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-12-06 22:16:12,415 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 [2021-12-06 22:16:12,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 22:16:12,428 INFO L225 Difference]: With dead ends: 4602 [2021-12-06 22:16:12,428 INFO L226 Difference]: Without dead ends: 2908 [2021-12-06 22:16:12,434 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=120, Invalid=530, Unknown=0, NotChecked=0, Total=650 [2021-12-06 22:16:12,434 INFO L933 BasicCegarLoop]: 818 mSDtfsCounter, 1080 mSDsluCounter, 4632 mSDsCounter, 0 mSdLazyCounter, 4134 mSolverCounterSat, 462 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1122 SdHoareTripleChecker+Valid, 5450 SdHoareTripleChecker+Invalid, 4596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 462 IncrementalHoareTripleChecker+Valid, 4134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.3s IncrementalHoareTripleChecker+Time [2021-12-06 22:16:12,435 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1122 Valid, 5450 Invalid, 4596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [462 Valid, 4134 Invalid, 0 Unknown, 0 Unchecked, 11.3s Time] [2021-12-06 22:16:12,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2908 states. [2021-12-06 22:16:12,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2908 to 2302. [2021-12-06 22:16:12,509 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) [2021-12-06 22:16:12,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2302 states to 2302 states and 3384 transitions. [2021-12-06 22:16:12,515 INFO L78 Accepts]: Start accepts. Automaton has 2302 states and 3384 transitions. Word has length 93 [2021-12-06 22:16:12,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 22:16:12,516 INFO L470 AbstractCegarLoop]: Abstraction has 2302 states and 3384 transitions. [2021-12-06 22:16:12,516 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) [2021-12-06 22:16:12,516 INFO L276 IsEmpty]: Start isEmpty. Operand 2302 states and 3384 transitions. [2021-12-06 22:16:12,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-12-06 22:16:12,518 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 22:16:12,519 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] [2021-12-06 22:16:12,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-06 22:16:12,519 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 22:16:12,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:16:12,519 INFO L85 PathProgramCache]: Analyzing trace with hash -1961504236, now seen corresponding path program 1 times [2021-12-06 22:16:12,519 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:16:12,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326236141] [2021-12-06 22:16:12,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:16:12,520 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:16:12,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:16:12,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 22:16:12,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:16:12,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 22:16:12,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:16:12,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-06 22:16:12,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:16:12,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-06 22:16:12,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:16:12,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 22:16:12,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:16:12,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-06 22:16:12,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:16:12,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-06 22:16:12,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:16:12,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 22:16:12,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:16:12,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-06 22:16:12,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:16:12,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-06 22:16:12,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:16:12,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-06 22:16:12,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:16:12,972 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-06 22:16:12,973 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:16:12,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326236141] [2021-12-06 22:16:12,973 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326236141] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:16:12,973 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:16:12,973 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-06 22:16:12,973 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817082884] [2021-12-06 22:16:12,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:16:12,974 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-06 22:16:12,974 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:16:12,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-06 22:16:12,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-12-06 22:16:12,975 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) [2021-12-06 22:16:15,715 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:16:17,084 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:16:21,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 22:16:21,486 INFO L93 Difference]: Finished difference Result 5655 states and 8903 transitions. [2021-12-06 22:16:21,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-12-06 22:16:21,486 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 [2021-12-06 22:16:21,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 22:16:21,510 INFO L225 Difference]: With dead ends: 5655 [2021-12-06 22:16:21,510 INFO L226 Difference]: Without dead ends: 4796 [2021-12-06 22:16:21,515 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=177, Invalid=423, Unknown=0, NotChecked=0, Total=600 [2021-12-06 22:16:21,515 INFO L933 BasicCegarLoop]: 851 mSDtfsCounter, 4711 mSDsluCounter, 2365 mSDsCounter, 0 mSdLazyCounter, 4271 mSolverCounterSat, 2262 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4783 SdHoareTripleChecker+Valid, 3216 SdHoareTripleChecker+Invalid, 6533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2262 IncrementalHoareTripleChecker+Valid, 4271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2021-12-06 22:16:21,516 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4783 Valid, 3216 Invalid, 6533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2262 Valid, 4271 Invalid, 0 Unknown, 0 Unchecked, 8.2s Time] [2021-12-06 22:16:21,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4796 states. [2021-12-06 22:16:21,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4796 to 3885. [2021-12-06 22:16:21,662 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) [2021-12-06 22:16:21,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3885 states to 3885 states and 5991 transitions. [2021-12-06 22:16:21,673 INFO L78 Accepts]: Start accepts. Automaton has 3885 states and 5991 transitions. Word has length 95 [2021-12-06 22:16:21,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 22:16:21,674 INFO L470 AbstractCegarLoop]: Abstraction has 3885 states and 5991 transitions. [2021-12-06 22:16:21,674 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) [2021-12-06 22:16:21,674 INFO L276 IsEmpty]: Start isEmpty. Operand 3885 states and 5991 transitions. [2021-12-06 22:16:21,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-12-06 22:16:21,676 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 22:16:21,676 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] [2021-12-06 22:16:21,677 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-06 22:16:21,677 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 22:16:21,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:16:21,677 INFO L85 PathProgramCache]: Analyzing trace with hash 127263836, now seen corresponding path program 1 times [2021-12-06 22:16:21,677 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:16:21,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988301554] [2021-12-06 22:16:21,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:16:21,677 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:16:21,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:16:21,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 22:16:21,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:16:21,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-06 22:16:21,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:16:21,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-06 22:16:21,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:16:21,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-06 22:16:21,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:16:21,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-06 22:16:21,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:16:21,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-06 22:16:21,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:16:21,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-06 22:16:21,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:16:21,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-06 22:16:21,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:16:22,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-06 22:16:22,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:16:22,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-06 22:16:22,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:16:22,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-06 22:16:22,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:16:22,019 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-06 22:16:22,019 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:16:22,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988301554] [2021-12-06 22:16:22,019 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988301554] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-06 22:16:22,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [779318471] [2021-12-06 22:16:22,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:16:22,020 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 22:16:22,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:16:22,021 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 22:16:22,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-06 22:16:22,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:16:22,838 INFO L263 TraceCheckSpWp]: Trace formula consists of 8297 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 22:16:22,851 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 22:16:22,957 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-06 22:16:22,957 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 22:16:22,957 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [779318471] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:16:22,958 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-06 22:16:22,958 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 8 [2021-12-06 22:16:22,958 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310564155] [2021-12-06 22:16:22,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:16:22,958 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 22:16:22,958 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:16:22,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 22:16:22,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-12-06 22:16:22,959 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) [2021-12-06 22:16:23,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 22:16:23,087 INFO L93 Difference]: Finished difference Result 7153 states and 11037 transitions. [2021-12-06 22:16:23,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 22:16:23,088 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 [2021-12-06 22:16:23,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 22:16:23,103 INFO L225 Difference]: With dead ends: 7153 [2021-12-06 22:16:23,104 INFO L226 Difference]: Without dead ends: 3885 [2021-12-06 22:16:23,116 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 [2021-12-06 22:16:23,116 INFO L933 BasicCegarLoop]: 1044 mSDtfsCounter, 217 mSDsluCounter, 1668 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 22:16:23,117 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [259 Valid, 2712 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 22:16:23,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3885 states. [2021-12-06 22:16:23,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3885 to 3885. [2021-12-06 22:16:23,229 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) [2021-12-06 22:16:23,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3885 states to 3885 states and 5986 transitions. [2021-12-06 22:16:23,241 INFO L78 Accepts]: Start accepts. Automaton has 3885 states and 5986 transitions. Word has length 96 [2021-12-06 22:16:23,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 22:16:23,242 INFO L470 AbstractCegarLoop]: Abstraction has 3885 states and 5986 transitions. [2021-12-06 22:16:23,242 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) [2021-12-06 22:16:23,243 INFO L276 IsEmpty]: Start isEmpty. Operand 3885 states and 5986 transitions. [2021-12-06 22:16:23,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-12-06 22:16:23,245 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 22:16:23,245 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] [2021-12-06 22:16:23,288 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-06 22:16:23,446 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-12-06 22:16:23,446 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 22:16:23,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:16:23,447 INFO L85 PathProgramCache]: Analyzing trace with hash 112255749, now seen corresponding path program 1 times [2021-12-06 22:16:23,447 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:16:23,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733883641] [2021-12-06 22:16:23,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:16:23,447 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:16:25,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:16:25,726 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 22:16:28,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:16:28,295 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 22:16:28,296 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-06 22:16:28,296 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-06 22:16:28,298 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-06 22:16:28,300 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 22:16:28,302 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-06 22:16:28,422 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 10:16:28 BoogieIcfgContainer [2021-12-06 22:16:28,422 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-06 22:16:28,422 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 22:16:28,422 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 22:16:28,422 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 22:16:28,423 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 10:15:11" (3/4) ... [2021-12-06 22:16:28,425 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-06 22:16:28,425 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 22:16:28,426 INFO L158 Benchmark]: Toolchain (without parser) took 138712.58ms. Allocated memory was 96.5MB in the beginning and 1.3GB in the end (delta: 1.2GB). Free memory was 63.6MB in the beginning and 1.0GB in the end (delta: -950.4MB). Peak memory consumption was 206.0MB. Max. memory is 16.1GB. [2021-12-06 22:16:28,426 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 73.4MB. Free memory was 51.7MB in the beginning and 51.7MB in the end (delta: 30.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 22:16:28,426 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3367.55ms. Allocated memory was 96.5MB in the beginning and 174.1MB in the end (delta: 77.6MB). Free memory was 63.5MB in the beginning and 46.1MB in the end (delta: 17.4MB). Peak memory consumption was 102.4MB. Max. memory is 16.1GB. [2021-12-06 22:16:28,426 INFO L158 Benchmark]: Boogie Procedure Inliner took 225.43ms. Allocated memory is still 174.1MB. Free memory was 46.1MB in the beginning and 56.1MB in the end (delta: -10.0MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. [2021-12-06 22:16:28,427 INFO L158 Benchmark]: Boogie Preprocessor took 195.66ms. Allocated memory was 174.1MB in the beginning and 230.7MB in the end (delta: 56.6MB). Free memory was 56.1MB in the beginning and 116.6MB in the end (delta: -60.5MB). Peak memory consumption was 28.4MB. Max. memory is 16.1GB. [2021-12-06 22:16:28,427 INFO L158 Benchmark]: RCFGBuilder took 58360.76ms. Allocated memory was 230.7MB in the beginning and 1.0GB in the end (delta: 811.6MB). Free memory was 116.6MB in the beginning and 801.1MB in the end (delta: -684.5MB). Peak memory consumption was 620.8MB. Max. memory is 16.1GB. [2021-12-06 22:16:28,427 INFO L158 Benchmark]: TraceAbstraction took 76552.41ms. Allocated memory was 1.0GB in the beginning and 1.3GB in the end (delta: 209.7MB). Free memory was 801.1MB in the beginning and 1.0GB in the end (delta: -214.0MB). Peak memory consumption was 601.9MB. Max. memory is 16.1GB. [2021-12-06 22:16:28,427 INFO L158 Benchmark]: Witness Printer took 3.04ms. Allocated memory is still 1.3GB. Free memory was 1.0GB in the beginning and 1.0GB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 22:16:28,429 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 73.4MB. Free memory was 51.7MB in the beginning and 51.7MB in the end (delta: 30.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3367.55ms. Allocated memory was 96.5MB in the beginning and 174.1MB in the end (delta: 77.6MB). Free memory was 63.5MB in the beginning and 46.1MB in the end (delta: 17.4MB). Peak memory consumption was 102.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 225.43ms. Allocated memory is still 174.1MB. Free memory was 46.1MB in the beginning and 56.1MB in the end (delta: -10.0MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 195.66ms. Allocated memory was 174.1MB in the beginning and 230.7MB in the end (delta: 56.6MB). Free memory was 56.1MB in the beginning and 116.6MB in the end (delta: -60.5MB). Peak memory consumption was 28.4MB. Max. memory is 16.1GB. * RCFGBuilder took 58360.76ms. Allocated memory was 230.7MB in the beginning and 1.0GB in the end (delta: 811.6MB). Free memory was 116.6MB in the beginning and 801.1MB in the end (delta: -684.5MB). Peak memory consumption was 620.8MB. Max. memory is 16.1GB. * TraceAbstraction took 76552.41ms. Allocated memory was 1.0GB in the beginning and 1.3GB in the end (delta: 209.7MB). Free memory was 801.1MB in the beginning and 1.0GB in the end (delta: -214.0MB). Peak memory consumption was 601.9MB. Max. memory is 16.1GB. * Witness Printer took 3.04ms. Allocated memory is still 1.3GB. Free memory was 1.0GB in the beginning and 1.0GB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. 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={18446744073709552232:18446744073709552243}, 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={18446744073709552232:18446744073709552243}, 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={18446744073709552232:18446744073709552243}, 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={18446744073709552232:18446744073709552243}, 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={18446744073709552232:18446744073709552243}, 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={18446744073709552232:18446744073709552243}, 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={18446744073709552232:18446744073709552243}, 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={18446744073709552232:18446744073709552243}, 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={18446744073709552232:18446744073709552243}, 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={18446744073709552232:18446744073709552243}, 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={18446744073709552232:18446744073709552243}, 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={18446744073709552232:18446744073709552243}, 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={18446744073709552232:18446744073709552243}, 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={18446744073709552233:18446744073709552219}, filp={18446744073709552233:18446744073709552219}, 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={18446744073709552215:-1129}, tty={18446744073709552215:-1129}, 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={18446744073709552232:18446744073709552243}, 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={18446744073709552215:-1129}, tty={18446744073709552215:-1129}, tty->index=705, 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=1410, \old(ldv_module_refcounter)=1, __this_module={18446744073709552232:18446744073709552243}, 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={18446744073709552215:-1129}, tty={18446744073709552215:-1129}, tty->driver={18446744073709552217:713}, tty->index=705, 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)=1, __this_module={18446744073709552232:18446744073709552243}, 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=1, 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={18446744073709552232:18446744073709552243}, 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={18446744073709552232:18446744073709552243}, 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)=1, __this_module={18446744073709552232:18446744073709552243}, 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=1, 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={18446744073709552232:18446744073709552243}, 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)=1, __this_module={18446744073709552232:18446744073709552243}, _raw_spin_lock_irqsave(tmp)=18446744073709552249, 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=1, 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)=1, __mptr={0:0}, __this_module={18446744073709552232:18446744073709552243}, 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=633, 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=1, 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)=1, __mptr={0:0}, __this_module={18446744073709552232:18446744073709552243}, 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=633, 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=1, 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)=1, __mptr={0:0}, __this_module={18446744073709552232:18446744073709552243}, 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=4294967296, flags=633, 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=1, 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)=1, __mptr={0:0}, __this_module={18446744073709552232:18446744073709552243}, 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=4294967296, drv->minors=4294967298, flags=633, 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=1, 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={18446744073709552232:18446744073709552243}, 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)=1, __mptr={0:0}, __this_module={18446744073709552232:18446744073709552243}, 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=633, 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=1, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, minor=1, 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=18446744073709552236, \old(ldv_module_refcounter)=1, \old(minor)=1, __mptr={0:0}, __this_module={18446744073709552232:18446744073709552243}, 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={18446744073709552215:-4472}, flags=633, 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=1, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, minor=1, 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={18446744073709552232:18446744073709552243}, 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)=1, __mptr={0:0}, __this_module={18446744073709552232:18446744073709552243}, 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=633, 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=1, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, minor=1, resp_type={697:0}, ret={18446744073709552215:-598}, 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)=1, __mptr={0:0}, __this_module={18446744073709552232:18446744073709552243}, 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=633, 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=1, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, minor=1, resp_type={697:0}, ret={18446744073709552215:-598}, tmp={692:0}, zsau_resp={698:0}] [L6952] CALL spin_unlock_irqrestore(& driver_lock, flags) VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709552232:18446744073709552243}, 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)=1, __mptr={0:0}, __this_module={18446744073709552232:18446744073709552243}, 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=633, 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=1, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, minor=1, resp_type={697:0}, ret={18446744073709552215:-598}, tmp={692:0}, zsau_resp={698:0}] [L6954] return (ret); VAL [\old(ldv_module_refcounter)=1, \old(minor)=1, \result={18446744073709552215:-598}, __mptr={0:0}, __this_module={18446744073709552232:18446744073709552243}, 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=633, 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=1, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, minor=1, resp_type={697:0}, ret={18446744073709552215:-598}, 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={18446744073709552215:-598}, __this_module={18446744073709552232:18446744073709552243}, 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={18446744073709552215:-598}, tty={18446744073709552215:-1129}, tty={18446744073709552215:-1129}, 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={18446744073709552232:18446744073709552243}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, cs={18446744073709552215:-598}, cs->driver={18446744073709552240:-127}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, filp={18446744073709552233:18446744073709552219}, filp={18446744073709552233:18446744073709552219}, 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={18446744073709552215:-1129}, tty={18446744073709552215:-1129}, zsau_resp={698:0}] [L7659] CALL, EXPR ldv_try_module_get_1((cs->driver)->owner) VAL [\old(ldv_module_refcounter)=1, __this_module={18446744073709552232:18446744073709552243}, 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={18446744073709552232:18446744073709552243}, 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={18446744073709552232:18446744073709552243}, 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={18446744073709552232:18446744073709552243}, 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={18446744073709552232:18446744073709552243}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, cs={18446744073709552215:-598}, cs->driver={18446744073709552240:-127}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, filp={18446744073709552233:18446744073709552219}, filp={18446744073709552233:18446744073709552219}, 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={18446744073709552215:-1129}, tty={18446744073709552215:-1129}, 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={18446744073709552232:18446744073709552243}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, cs={18446744073709552215:-598}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, filp={18446744073709552233:18446744073709552219}, filp={18446744073709552233:18446744073709552219}, 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={18446744073709552215:-1129}, tty={18446744073709552215:-1129}, 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={18446744073709552232:18446744073709552243}, arg0={18446744073709552215:0}, 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=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={18446744073709552232:18446744073709552243}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, cs={18446744073709552215:-598}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, filp={18446744073709552233:18446744073709552219}, filp={18446744073709552233:18446744073709552219}, 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={18446744073709552215:-1129}, tty={18446744073709552215:-1129}, 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={18446744073709552232:18446744073709552243}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, cs={18446744073709552215:-598}, cs->open_count=710, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, filp={18446744073709552233:18446744073709552219}, filp={18446744073709552233:18446744073709552219}, 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={18446744073709552215:-1129}, tty={18446744073709552215:-1129}, 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={18446744073709552232:18446744073709552243}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, cs={18446744073709552215:-598}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, filp={18446744073709552233:18446744073709552219}, filp={18446744073709552233:18446744073709552219}, 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={18446744073709552215:-1129}, tty={18446744073709552215:-1129}, zsau_resp={698:0}] [L7691] return (0); VAL [\old(ldv_module_refcounter)=1, \result=0, __this_module={18446744073709552232:18446744073709552243}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, cs={18446744073709552215:-598}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, filp={18446744073709552233:18446744073709552219}, filp={18446744073709552233:18446744073709552219}, 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={18446744073709552215:-1129}, tty={18446744073709552215:-1129}, zsau_resp={698:0}] [L8875] RET, EXPR if_open(var_group1, var_group2) VAL [__this_module={18446744073709552232:18446744073709552243}, 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={18446744073709552215:-1129}, var_group2={18446744073709552233:18446744073709552219}, 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={18446744073709552232:18446744073709552243}, 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={18446744073709552215:-1129}, var_group2={18446744073709552233:18446744073709552219}, zsau_resp={698:0}] [L8948] tmp___0 = __VERIFIER_nondet_int() [L8950] COND TRUE tmp___0 != 0 VAL [__this_module={18446744073709552232:18446744073709552243}, 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={18446744073709552215:-1129}, var_group2={18446744073709552233:18446744073709552219}, zsau_resp={698:0}] [L8835] tmp = __VERIFIER_nondet_int() [L8837] COND FALSE !(tmp == 0) VAL [__this_module={18446744073709552232:18446744073709552243}, 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={18446744073709552215:-1129}, var_group2={18446744073709552233:18446744073709552219}, zsau_resp={698:0}] [L8840] COND TRUE tmp == 1 VAL [__this_module={18446744073709552232:18446744073709552243}, 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={18446744073709552215:-1129}, var_group2={18446744073709552233:18446744073709552219}, 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={18446744073709552232:18446744073709552243}, 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={18446744073709552215:-1129}, var_group2={18446744073709552233:18446744073709552219}, zsau_resp={698:0}] [L8948] tmp___0 = __VERIFIER_nondet_int() [L8950] COND FALSE !(tmp___0 != 0) VAL [__this_module={18446744073709552232:18446744073709552243}, 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={18446744073709552215:-1129}, var_group2={18446744073709552233:18446744073709552219}, zsau_resp={698:0}] [L8953] COND FALSE !(ldv_s_if_ops_tty_operations != 0) VAL [__this_module={18446744073709552232:18446744073709552243}, 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={18446744073709552215:-1129}, var_group2={18446744073709552233:18446744073709552219}, zsau_resp={698:0}] [L8961] CALL ldv_check_final_state() [L7165] COND TRUE ldv_module_refcounter != 1 VAL [__this_module={18446744073709552232:18446744073709552243}, 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={18446744073709552232:18446744073709552243}, 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={18446744073709552232:18446744073709552243}, 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: 76.4s, OverallIterations: 13, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 62.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 2 mSolverCounterUnknown, 18827 SdHoareTripleChecker+Valid, 59.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 18150 mSDsluCounter, 43469 SdHoareTripleChecker+Invalid, 56.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 31675 mSDsCounter, 7515 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 26376 IncrementalHoareTripleChecker+Invalid, 33893 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7515 mSolverCounterUnsat, 11794 mSDtfsCounter, 26376 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 408 GetRequests, 270 SyntacticMatches, 1 SemanticMatches, 137 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 274 ImplicationChecksByTransitivity, 0.9s 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: 1.1s AutomataMinimizationTime, 12 MinimizatonAttempts, 5148 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 6.3s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 942 NumberOfCodeBlocks, 942 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 825 ConstructedInterpolants, 0 QuantifiedInterpolants, 2081 SizeOfPredicates, 0 NumberOfNonLiveVariables, 8297 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 [2021-12-06 22:16:28,472 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/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_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa --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 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 22:16:30,003 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 22:16:30,005 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 22:16:30,031 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 22:16:30,031 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 22:16:30,032 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 22:16:30,034 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 22:16:30,035 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 22:16:30,037 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 22:16:30,038 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 22:16:30,039 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 22:16:30,040 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 22:16:30,041 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 22:16:30,041 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 22:16:30,043 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 22:16:30,044 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 22:16:30,045 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 22:16:30,046 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 22:16:30,047 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 22:16:30,049 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 22:16:30,051 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 22:16:30,052 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 22:16:30,053 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 22:16:30,054 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 22:16:30,056 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 22:16:30,057 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 22:16:30,057 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 22:16:30,058 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 22:16:30,058 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 22:16:30,059 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 22:16:30,059 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 22:16:30,060 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 22:16:30,061 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 22:16:30,062 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 22:16:30,062 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 22:16:30,063 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 22:16:30,063 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 22:16:30,063 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 22:16:30,064 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 22:16:30,064 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 22:16:30,065 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 22:16:30,066 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2021-12-06 22:16:30,086 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 22:16:30,087 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 22:16:30,087 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 22:16:30,087 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 22:16:30,088 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 22:16:30,088 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 22:16:30,089 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 22:16:30,089 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 22:16:30,089 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 22:16:30,089 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 22:16:30,090 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 22:16:30,090 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 22:16:30,090 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 22:16:30,090 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 22:16:30,090 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-06 22:16:30,090 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-06 22:16:30,091 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-06 22:16:30,091 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 22:16:30,091 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 22:16:30,091 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 22:16:30,091 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 22:16:30,091 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 22:16:30,091 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 22:16:30,091 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 22:16:30,092 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 22:16:30,092 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 22:16:30,092 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 22:16:30,092 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-06 22:16:30,092 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-06 22:16:30,092 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 22:16:30,092 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 22:16:30,092 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 22:16:30,093 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 22:16:30,093 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-06 22:16:30,093 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_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6344be269056834d180d9b5e1136d4ee678a64c336fe877230b0ca721a1da138 [2021-12-06 22:16:30,320 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 22:16:30,340 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 22:16:30,342 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 22:16:30,343 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 22:16:30,344 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 22:16:30,345 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-isdn-gigaset-gigaset.ko.cil.out.i [2021-12-06 22:16:30,389 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/data/331c17010/6452e4cc471f4fd1bfa9699ffa117ca8/FLAG8aaeb6715 [2021-12-06 22:16:31,130 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 22:16:31,130 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-isdn-gigaset-gigaset.ko.cil.out.i [2021-12-06 22:16:31,181 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/data/331c17010/6452e4cc471f4fd1bfa9699ffa117ca8/FLAG8aaeb6715 [2021-12-06 22:16:31,414 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/data/331c17010/6452e4cc471f4fd1bfa9699ffa117ca8 [2021-12-06 22:16:31,416 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 22:16:31,417 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 22:16:31,418 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 22:16:31,418 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 22:16:31,421 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 22:16:31,421 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 10:16:31" (1/1) ... [2021-12-06 22:16:31,422 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7195c36d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:16:31, skipping insertion in model container [2021-12-06 22:16:31,422 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 10:16:31" (1/1) ... [2021-12-06 22:16:31,427 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 22:16:31,543 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 22:16:32,665 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_348248e7-7f7e-4aee-a264-148cb39e86cc/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-isdn-gigaset-gigaset.ko.cil.out.i[190502,190515] [2021-12-06 22:16:33,112 WARN L1533 CHandler]: Possible shadowing of function abort [2021-12-06 22:16:33,115 WARN L1533 CHandler]: Possible shadowing of function abort [2021-12-06 22:16:33,116 WARN L1533 CHandler]: Possible shadowing of function abort [2021-12-06 22:16:33,120 WARN L1533 CHandler]: Possible shadowing of function abort [2021-12-06 22:16:34,060 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 22:16:34,116 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-12-06 22:16:34,186 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 22:16:34,350 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_348248e7-7f7e-4aee-a264-148cb39e86cc/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-isdn-gigaset-gigaset.ko.cil.out.i[190502,190515] [2021-12-06 22:16:34,411 WARN L1533 CHandler]: Possible shadowing of function abort [2021-12-06 22:16:34,413 WARN L1533 CHandler]: Possible shadowing of function abort [2021-12-06 22:16:34,414 WARN L1533 CHandler]: Possible shadowing of function abort [2021-12-06 22:16:34,417 WARN L1533 CHandler]: Possible shadowing of function abort [2021-12-06 22:16:34,609 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 22:16:34,628 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 22:16:34,774 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_348248e7-7f7e-4aee-a264-148cb39e86cc/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-isdn-gigaset-gigaset.ko.cil.out.i[190502,190515] [2021-12-06 22:16:34,851 WARN L1533 CHandler]: Possible shadowing of function abort [2021-12-06 22:16:34,853 WARN L1533 CHandler]: Possible shadowing of function abort [2021-12-06 22:16:34,853 WARN L1533 CHandler]: Possible shadowing of function abort [2021-12-06 22:16:34,856 WARN L1533 CHandler]: Possible shadowing of function abort [2021-12-06 22:16:35,115 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 22:16:35,306 INFO L208 MainTranslator]: Completed translation [2021-12-06 22:16:35,306 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:16:35 WrapperNode [2021-12-06 22:16:35,306 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 22:16:35,307 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 22:16:35,307 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 22:16:35,308 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 22:16:35,314 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:16:35" (1/1) ... [2021-12-06 22:16:35,380 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:16:35" (1/1) ... [2021-12-06 22:16:35,487 INFO L137 Inliner]: procedures = 367, calls = 6444, calls flagged for inlining = 156, calls inlined = 36, statements flattened = 4438 [2021-12-06 22:16:35,487 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 22:16:35,488 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 22:16:35,488 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 22:16:35,488 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 22:16:35,495 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:16:35" (1/1) ... [2021-12-06 22:16:35,496 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:16:35" (1/1) ... [2021-12-06 22:16:35,517 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:16:35" (1/1) ... [2021-12-06 22:16:35,518 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:16:35" (1/1) ... [2021-12-06 22:16:35,580 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:16:35" (1/1) ... [2021-12-06 22:16:35,590 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:16:35" (1/1) ... [2021-12-06 22:16:35,603 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:16:35" (1/1) ... [2021-12-06 22:16:35,619 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 22:16:35,620 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 22:16:35,620 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 22:16:35,620 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 22:16:35,621 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:16:35" (1/1) ... [2021-12-06 22:16:35,626 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 22:16:35,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:16:35,644 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 22:16:35,646 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 22:16:35,675 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_schedule_event [2021-12-06 22:16:35,675 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_schedule_event [2021-12-06 22:16:35,676 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-12-06 22:16:35,676 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-12-06 22:16:35,676 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-06 22:16:35,676 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-06 22:16:35,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-06 22:16:35,676 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_add_event [2021-12-06 22:16:35,676 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_add_event [2021-12-06 22:16:35,676 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-12-06 22:16:35,676 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-12-06 22:16:35,676 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-06 22:16:35,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-06 22:16:35,676 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2021-12-06 22:16:35,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2021-12-06 22:16:35,677 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put_3 [2021-12-06 22:16:35,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put_3 [2021-12-06 22:16:35,677 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2021-12-06 22:16:35,677 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2021-12-06 22:16:35,677 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-06 22:16:35,677 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-06 22:16:35,677 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_UINT~X~C_UINT~TO~C_INT [2021-12-06 22:16:35,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_UINT~X~C_UINT~TO~C_INT [2021-12-06 22:16:35,677 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_dbg_buffer [2021-12-06 22:16:35,677 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_dbg_buffer [2021-12-06 22:16:35,677 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-06 22:16:35,678 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-06 22:16:35,678 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-06 22:16:35,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-06 22:16:35,678 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-06 22:16:35,678 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-06 22:16:35,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-12-06 22:16:35,678 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2021-12-06 22:16:35,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2021-12-06 22:16:35,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 22:16:35,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-06 22:16:35,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-06 22:16:35,678 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-12-06 22:16:35,679 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-12-06 22:16:35,679 INFO L130 BoogieDeclarations]: Found specification of procedure if_tiocmget [2021-12-06 22:16:35,679 INFO L138 BoogieDeclarations]: Found implementation of procedure if_tiocmget [2021-12-06 22:16:35,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-12-06 22:16:35,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-06 22:16:35,679 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_UINT~TO~C_INT [2021-12-06 22:16:35,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_UINT~TO~C_INT [2021-12-06 22:16:35,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-12-06 22:16:35,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-12-06 22:16:35,679 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-06 22:16:35,679 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-06 22:16:35,679 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-06 22:16:35,680 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-06 22:16:35,680 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-12-06 22:16:35,680 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-12-06 22:16:35,680 INFO L130 BoogieDeclarations]: Found specification of procedure if_chars_in_buffer [2021-12-06 22:16:35,680 INFO L138 BoogieDeclarations]: Found implementation of procedure if_chars_in_buffer [2021-12-06 22:16:35,680 INFO L130 BoogieDeclarations]: Found specification of procedure if_write_room [2021-12-06 22:16:35,680 INFO L138 BoogieDeclarations]: Found implementation of procedure if_write_room [2021-12-06 22:16:35,680 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-06 22:16:35,680 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-06 22:16:35,680 INFO L130 BoogieDeclarations]: Found specification of procedure if_throttle [2021-12-06 22:16:35,680 INFO L138 BoogieDeclarations]: Found implementation of procedure if_throttle [2021-12-06 22:16:35,680 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2021-12-06 22:16:35,681 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2021-12-06 22:16:35,681 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-12-06 22:16:35,681 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-12-06 22:16:35,681 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get_1 [2021-12-06 22:16:35,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get_1 [2021-12-06 22:16:35,681 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-06 22:16:35,681 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-06 22:16:35,681 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2021-12-06 22:16:35,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2021-12-06 22:16:35,681 INFO L130 BoogieDeclarations]: Found specification of procedure single_release [2021-12-06 22:16:35,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-12-06 22:16:35,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-12-06 22:16:35,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-12-06 22:16:35,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-12-06 22:16:35,682 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2021-12-06 22:16:35,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2021-12-06 22:16:35,682 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-06 22:16:35,682 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-12-06 22:16:35,682 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-12-06 22:16:35,682 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 22:16:35,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-06 22:16:35,682 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-06 22:16:35,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-12-06 22:16:35,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-12-06 22:16:35,683 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-12-06 22:16:35,683 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2021-12-06 22:16:35,683 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2021-12-06 22:16:35,683 INFO L130 BoogieDeclarations]: Found specification of procedure if_tiocmset [2021-12-06 22:16:35,683 INFO L138 BoogieDeclarations]: Found implementation of procedure if_tiocmset [2021-12-06 22:16:35,683 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2021-12-06 22:16:35,683 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2021-12-06 22:16:35,683 INFO L130 BoogieDeclarations]: Found specification of procedure if_open [2021-12-06 22:16:35,683 INFO L138 BoogieDeclarations]: Found implementation of procedure if_open [2021-12-06 22:16:35,683 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-06 22:16:35,683 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-06 22:16:35,683 INFO L130 BoogieDeclarations]: Found specification of procedure setflags [2021-12-06 22:16:35,683 INFO L138 BoogieDeclarations]: Found implementation of procedure setflags [2021-12-06 22:16:35,684 INFO L130 BoogieDeclarations]: Found specification of procedure if_unthrottle [2021-12-06 22:16:35,684 INFO L138 BoogieDeclarations]: Found implementation of procedure if_unthrottle [2021-12-06 22:16:35,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-12-06 22:16:35,684 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2021-12-06 22:16:35,684 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2021-12-06 22:16:35,684 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 22:16:35,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 22:16:35,684 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-06 22:16:35,684 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-06 22:16:36,009 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 22:16:36,010 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 22:16:40,250 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2021-12-06 22:16:40,250 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2021-12-06 22:16:40,733 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##8: assume !false; [2021-12-06 22:16:40,733 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##7: assume false; [2021-12-06 22:16:40,733 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; [2021-12-06 22:16:40,734 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L5012: SUMMARY for call #t~ret76#1.base, #t~ret76#1.offset := get_current(); srcloc: null [2021-12-06 22:16:40,735 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-06 22:16:40,736 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-06 22:16:40,737 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-06 22:16:41,016 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##26: assume !false; [2021-12-06 22:16:41,017 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##25: assume false; [2021-12-06 22:16:41,017 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##61: assume false; [2021-12-06 22:16:41,017 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##62: assume !false; [2021-12-06 22:16:41,017 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##41: assume !false; [2021-12-06 22:16:41,017 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##40: assume false; [2021-12-06 22:16:41,338 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-06 22:16:41,340 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-06 22:16:41,344 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-06 22:19:29,958 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; [2021-12-06 22:19:29,958 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##75: assume !false; [2021-12-06 22:19:29,958 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##74: assume false; [2021-12-06 22:19:29,959 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##79: assume !false; [2021-12-06 22:19:29,959 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##78: assume false; [2021-12-06 22:19:29,959 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##147: assume !false; [2021-12-06 22:19:29,959 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##24: assume !false; [2021-12-06 22:19:29,959 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##23: assume false; [2021-12-06 22:19:29,959 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##146: assume false; [2021-12-06 22:19:29,959 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##169: assume false; [2021-12-06 22:19:29,959 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##111: assume false; [2021-12-06 22:19:29,959 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##112: assume !false; [2021-12-06 22:19:29,959 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##117: assume !false; [2021-12-06 22:19:29,959 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##116: assume false; [2021-12-06 22:19:29,984 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 22:19:29,997 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 22:19:29,997 INFO L301 CfgBuilder]: Removed 6 assume(true) statements. [2021-12-06 22:19:29,999 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 10:19:29 BoogieIcfgContainer [2021-12-06 22:19:29,999 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 22:19:30,001 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 22:19:30,001 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 22:19:30,003 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 22:19:30,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 10:16:31" (1/3) ... [2021-12-06 22:19:30,004 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12f4928e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 10:19:30, skipping insertion in model container [2021-12-06 22:19:30,004 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:16:35" (2/3) ... [2021-12-06 22:19:30,004 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12f4928e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 10:19:30, skipping insertion in model container [2021-12-06 22:19:30,004 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 10:19:29" (3/3) ... [2021-12-06 22:19:30,005 INFO L111 eAbstractionObserver]: Analyzing ICFG module_get_put-drivers-isdn-gigaset-gigaset.ko.cil.out.i [2021-12-06 22:19:30,009 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 22:19:30,009 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 22:19:30,046 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 22:19:30,050 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-06 22:19:30,050 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-06 22:19:30,075 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) [2021-12-06 22:19:30,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-12-06 22:19:30,079 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 22:19:30,080 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 22:19:30,080 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 22:19:30,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:19:30,084 INFO L85 PathProgramCache]: Analyzing trace with hash 1604531392, now seen corresponding path program 1 times [2021-12-06 22:19:30,105 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 22:19:30,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1972749593] [2021-12-06 22:19:30,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:19:30,106 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 22:19:30,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 22:19:30,108 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 22:19:30,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-06 22:19:38,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:19:39,293 INFO L263 TraceCheckSpWp]: Trace formula consists of 7618 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 22:19:39,301 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 22:19:39,465 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-06 22:19:39,465 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 22:19:39,466 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 22:19:39,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1972749593] [2021-12-06 22:19:39,467 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1972749593] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:19:39,467 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:19:39,467 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 22:19:39,468 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005253588] [2021-12-06 22:19:39,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:19:39,472 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 22:19:39,472 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 22:19:39,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 22:19:39,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 22:19:39,496 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 4.666666666666667) internal successors, (14), 2 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) [2021-12-06 22:19:39,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 22:19:39,626 INFO L93 Difference]: Finished difference Result 1905 states and 2769 transitions. [2021-12-06 22:19:39,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 22:19:39,628 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 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 [2021-12-06 22:19:39,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 22:19:39,658 INFO L225 Difference]: With dead ends: 1905 [2021-12-06 22:19:39,659 INFO L226 Difference]: Without dead ends: 1259 [2021-12-06 22:19:39,665 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 22:19:39,667 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, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 22:19:39,668 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [883 Valid, 1925 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 22:19:39,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1259 states. [2021-12-06 22:19:39,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1259 to 1256. [2021-12-06 22:19:39,762 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) [2021-12-06 22:19:39,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1256 states to 1256 states and 1787 transitions. [2021-12-06 22:19:39,772 INFO L78 Accepts]: Start accepts. Automaton has 1256 states and 1787 transitions. Word has length 22 [2021-12-06 22:19:39,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 22:19:39,772 INFO L470 AbstractCegarLoop]: Abstraction has 1256 states and 1787 transitions. [2021-12-06 22:19:39,772 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 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) [2021-12-06 22:19:39,773 INFO L276 IsEmpty]: Start isEmpty. Operand 1256 states and 1787 transitions. [2021-12-06 22:19:39,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-12-06 22:19:39,776 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 22:19:39,777 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] [2021-12-06 22:19:39,898 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-12-06 22:19:39,978 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 22:19:39,978 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 22:19:39,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:19:39,980 INFO L85 PathProgramCache]: Analyzing trace with hash 263024063, now seen corresponding path program 1 times [2021-12-06 22:19:39,991 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 22:19:39,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [47782890] [2021-12-06 22:19:39,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:19:39,993 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 22:19:39,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 22:19:39,995 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 22:19:39,997 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-12-06 22:19:48,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:19:49,218 INFO L263 TraceCheckSpWp]: Trace formula consists of 7670 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-06 22:19:49,222 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 22:19:49,361 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-06 22:19:49,362 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 22:19:49,362 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 22:19:49,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [47782890] [2021-12-06 22:19:49,362 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [47782890] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:19:49,362 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:19:49,362 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 22:19:49,363 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230057797] [2021-12-06 22:19:49,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:19:49,364 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 22:19:49,364 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 22:19:49,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 22:19:49,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 22:19:49,365 INFO L87 Difference]: Start difference. First operand 1256 states and 1787 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-06 22:19:49,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 22:19:49,469 INFO L93 Difference]: Finished difference Result 2965 states and 4308 transitions. [2021-12-06 22:19:49,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 22:19:49,470 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (7), 2 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 42 [2021-12-06 22:19:49,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 22:19:49,480 INFO L225 Difference]: With dead ends: 2965 [2021-12-06 22:19:49,480 INFO L226 Difference]: Without dead ends: 1715 [2021-12-06 22:19:49,484 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 22:19:49,485 INFO L933 BasicCegarLoop]: 971 mSDtfsCounter, 261 mSDsluCounter, 886 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 315 SdHoareTripleChecker+Valid, 1857 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 22:19:49,486 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [315 Valid, 1857 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 22:19:49,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1715 states. [2021-12-06 22:19:49,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1715 to 1715. [2021-12-06 22:19:49,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1715 states, 1312 states have (on average 1.4222560975609757) internal successors, (1866), 1349 states have internal predecessors, (1866), 326 states have call successors, (326), 77 states have call predecessors, (326), 76 states have return successors, (331), 320 states have call predecessors, (331), 324 states have call successors, (331) [2021-12-06 22:19:49,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1715 states to 1715 states and 2523 transitions. [2021-12-06 22:19:49,554 INFO L78 Accepts]: Start accepts. Automaton has 1715 states and 2523 transitions. Word has length 42 [2021-12-06 22:19:49,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 22:19:49,555 INFO L470 AbstractCegarLoop]: Abstraction has 1715 states and 2523 transitions. [2021-12-06 22:19:49,555 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-06 22:19:49,555 INFO L276 IsEmpty]: Start isEmpty. Operand 1715 states and 2523 transitions. [2021-12-06 22:19:49,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-12-06 22:19:49,558 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 22:19:49,558 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] [2021-12-06 22:19:49,692 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-12-06 22:19:49,759 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 22:19:49,759 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 22:19:49,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:19:49,760 INFO L85 PathProgramCache]: Analyzing trace with hash -1647183611, now seen corresponding path program 1 times [2021-12-06 22:19:49,766 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 22:19:49,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1653263034] [2021-12-06 22:19:49,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:19:49,767 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 22:19:49,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 22:19:49,767 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 22:19:49,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-12-06 22:19:57,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:19:58,842 INFO L263 TraceCheckSpWp]: Trace formula consists of 7707 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 22:19:58,848 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 22:19:59,112 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-06 22:19:59,112 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 22:19:59,112 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 22:19:59,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1653263034] [2021-12-06 22:19:59,112 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1653263034] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:19:59,112 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:19:59,112 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 22:19:59,113 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050228110] [2021-12-06 22:19:59,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:19:59,113 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 22:19:59,113 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 22:19:59,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 22:19:59,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 22:19:59,114 INFO L87 Difference]: Start difference. First operand 1715 states and 2523 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-06 22:20:01,469 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:20:01,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 22:20:01,792 INFO L93 Difference]: Finished difference Result 5069 states and 7478 transitions. [2021-12-06 22:20:01,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 22:20:01,793 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (7), 2 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 47 [2021-12-06 22:20:01,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 22:20:01,811 INFO L225 Difference]: With dead ends: 5069 [2021-12-06 22:20:01,811 INFO L226 Difference]: Without dead ends: 3361 [2021-12-06 22:20:01,818 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 22:20:01,819 INFO L933 BasicCegarLoop]: 1079 mSDtfsCounter, 889 mSDsluCounter, 1960 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 25 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 903 SdHoareTripleChecker+Valid, 3039 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-12-06 22:20:01,819 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [903 Valid, 3039 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 104 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2021-12-06 22:20:01,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3361 states. [2021-12-06 22:20:01,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3361 to 3271. [2021-12-06 22:20:01,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3271 states, 2510 states have (on average 1.4247011952191235) internal successors, (3576), 2575 states have internal predecessors, (3576), 608 states have call successors, (608), 153 states have call predecessors, (608), 152 states have return successors, (620), 598 states have call predecessors, (620), 606 states have call successors, (620) [2021-12-06 22:20:01,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3271 states to 3271 states and 4804 transitions. [2021-12-06 22:20:01,939 INFO L78 Accepts]: Start accepts. Automaton has 3271 states and 4804 transitions. Word has length 47 [2021-12-06 22:20:01,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 22:20:01,939 INFO L470 AbstractCegarLoop]: Abstraction has 3271 states and 4804 transitions. [2021-12-06 22:20:01,940 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-06 22:20:01,940 INFO L276 IsEmpty]: Start isEmpty. Operand 3271 states and 4804 transitions. [2021-12-06 22:20:01,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-12-06 22:20:01,942 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 22:20:01,942 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] [2021-12-06 22:20:02,077 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-12-06 22:20:02,142 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 22:20:02,143 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 22:20:02,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:20:02,143 INFO L85 PathProgramCache]: Analyzing trace with hash -1506635001, now seen corresponding path program 1 times [2021-12-06 22:20:02,150 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 22:20:02,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [589403970] [2021-12-06 22:20:02,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:20:02,151 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 22:20:02,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 22:20:02,152 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 22:20:02,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-12-06 22:20:10,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:20:11,848 INFO L263 TraceCheckSpWp]: Trace formula consists of 7707 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-06 22:20:11,853 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 22:20:12,028 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-06 22:20:12,028 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 22:20:12,029 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 22:20:12,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [589403970] [2021-12-06 22:20:12,029 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [589403970] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:20:12,029 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:20:12,029 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 22:20:12,029 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746438197] [2021-12-06 22:20:12,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:20:12,030 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 22:20:12,030 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 22:20:12,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 22:20:12,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 22:20:12,030 INFO L87 Difference]: Start difference. First operand 3271 states and 4804 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-06 22:20:12,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 22:20:12,352 INFO L93 Difference]: Finished difference Result 6551 states and 9659 transitions. [2021-12-06 22:20:12,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 22:20:12,354 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (7), 2 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 47 [2021-12-06 22:20:12,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 22:20:12,378 INFO L225 Difference]: With dead ends: 6551 [2021-12-06 22:20:12,378 INFO L226 Difference]: Without dead ends: 3287 [2021-12-06 22:20:12,386 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-06 22:20:12,387 INFO L933 BasicCegarLoop]: 898 mSDtfsCounter, 5 mSDsluCounter, 1788 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2686 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-06 22:20:12,387 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 2686 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-06 22:20:12,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3287 states. [2021-12-06 22:20:12,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3287 to 3283. [2021-12-06 22:20:12,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3283 states, 2520 states have (on average 1.423015873015873) internal successors, (3586), 2587 states have internal predecessors, (3586), 608 states have call successors, (608), 153 states have call predecessors, (608), 154 states have return successors, (624), 598 states have call predecessors, (624), 606 states have call successors, (624) [2021-12-06 22:20:12,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3283 states to 3283 states and 4818 transitions. [2021-12-06 22:20:12,494 INFO L78 Accepts]: Start accepts. Automaton has 3283 states and 4818 transitions. Word has length 47 [2021-12-06 22:20:12,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 22:20:12,494 INFO L470 AbstractCegarLoop]: Abstraction has 3283 states and 4818 transitions. [2021-12-06 22:20:12,495 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-06 22:20:12,495 INFO L276 IsEmpty]: Start isEmpty. Operand 3283 states and 4818 transitions. [2021-12-06 22:20:12,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-12-06 22:20:12,497 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 22:20:12,497 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] [2021-12-06 22:20:12,629 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-12-06 22:20:12,698 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 22:20:12,698 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 22:20:12,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:20:12,698 INFO L85 PathProgramCache]: Analyzing trace with hash 1166731535, now seen corresponding path program 1 times [2021-12-06 22:20:12,705 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 22:20:12,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [997004349] [2021-12-06 22:20:12,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:20:12,705 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 22:20:12,705 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 22:20:12,706 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 22:20:12,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-12-06 22:20:20,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:20:21,797 INFO L263 TraceCheckSpWp]: Trace formula consists of 7722 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 22:20:21,801 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 22:20:21,988 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-06 22:20:21,988 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 22:20:21,989 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 22:20:21,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [997004349] [2021-12-06 22:20:21,989 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [997004349] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:20:21,989 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:20:21,989 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 22:20:21,989 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778478467] [2021-12-06 22:20:21,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:20:21,990 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 22:20:21,990 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 22:20:21,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 22:20:21,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 22:20:21,990 INFO L87 Difference]: Start difference. First operand 3283 states and 4818 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-06 22:20:22,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 22:20:22,127 INFO L93 Difference]: Finished difference Result 6582 states and 9660 transitions. [2021-12-06 22:20:22,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 22:20:22,128 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 59 [2021-12-06 22:20:22,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 22:20:22,146 INFO L225 Difference]: With dead ends: 6582 [2021-12-06 22:20:22,146 INFO L226 Difference]: Without dead ends: 3300 [2021-12-06 22:20:22,156 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 22:20:22,156 INFO L933 BasicCegarLoop]: 898 mSDtfsCounter, 3 mSDsluCounter, 2687 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 3585 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 22:20:22,157 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 3585 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 22:20:22,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3300 states. [2021-12-06 22:20:22,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3300 to 3294. [2021-12-06 22:20:22,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3294 states, 2527 states have (on average 1.4218440838939455) internal successors, (3593), 2597 states have internal predecessors, (3593), 608 states have call successors, (608), 153 states have call predecessors, (608), 158 states have return successors, (634), 599 states have call predecessors, (634), 606 states have call successors, (634) [2021-12-06 22:20:22,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3294 states to 3294 states and 4835 transitions. [2021-12-06 22:20:22,269 INFO L78 Accepts]: Start accepts. Automaton has 3294 states and 4835 transitions. Word has length 59 [2021-12-06 22:20:22,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 22:20:22,269 INFO L470 AbstractCegarLoop]: Abstraction has 3294 states and 4835 transitions. [2021-12-06 22:20:22,269 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-06 22:20:22,269 INFO L276 IsEmpty]: Start isEmpty. Operand 3294 states and 4835 transitions. [2021-12-06 22:20:22,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-12-06 22:20:22,272 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 22:20:22,272 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] [2021-12-06 22:20:22,400 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-12-06 22:20:22,472 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 22:20:22,472 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 22:20:22,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:20:22,473 INFO L85 PathProgramCache]: Analyzing trace with hash 1526216861, now seen corresponding path program 1 times [2021-12-06 22:20:22,479 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 22:20:22,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [948228287] [2021-12-06 22:20:22,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:20:22,479 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 22:20:22,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 22:20:22,480 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 22:20:22,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-12-06 22:20:31,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:20:32,121 INFO L263 TraceCheckSpWp]: Trace formula consists of 7769 conjuncts, 11 conjunts are in the unsatisfiable core [2021-12-06 22:20:32,125 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 22:20:32,507 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-06 22:20:32,508 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 22:20:32,508 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 22:20:32,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [948228287] [2021-12-06 22:20:32,508 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [948228287] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:20:32,508 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:20:32,508 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 22:20:32,508 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222962782] [2021-12-06 22:20:32,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:20:32,509 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 22:20:32,509 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 22:20:32,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 22:20:32,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 22:20:32,510 INFO L87 Difference]: Start difference. First operand 3294 states and 4835 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 3 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2021-12-06 22:20:33,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 22:20:33,089 INFO L93 Difference]: Finished difference Result 6653 states and 9817 transitions. [2021-12-06 22:20:33,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-06 22:20:33,091 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 3 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 66 [2021-12-06 22:20:33,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 22:20:33,116 INFO L225 Difference]: With dead ends: 6653 [2021-12-06 22:20:33,116 INFO L226 Difference]: Without dead ends: 3366 [2021-12-06 22:20:33,127 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2021-12-06 22:20:33,128 INFO L933 BasicCegarLoop]: 903 mSDtfsCounter, 24 mSDsluCounter, 3590 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 4493 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-06 22:20:33,128 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 4493 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-06 22:20:33,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3366 states. [2021-12-06 22:20:33,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3366 to 3346. [2021-12-06 22:20:33,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3346 states, 2567 states have (on average 1.4215037008180755) internal successors, (3649), 2637 states have internal predecessors, (3649), 620 states have call successors, (620), 153 states have call predecessors, (620), 158 states have return successors, (646), 611 states have call predecessors, (646), 618 states have call successors, (646) [2021-12-06 22:20:33,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3346 states to 3346 states and 4915 transitions. [2021-12-06 22:20:33,235 INFO L78 Accepts]: Start accepts. Automaton has 3346 states and 4915 transitions. Word has length 66 [2021-12-06 22:20:33,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 22:20:33,236 INFO L470 AbstractCegarLoop]: Abstraction has 3346 states and 4915 transitions. [2021-12-06 22:20:33,236 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 3 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2021-12-06 22:20:33,236 INFO L276 IsEmpty]: Start isEmpty. Operand 3346 states and 4915 transitions. [2021-12-06 22:20:33,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-12-06 22:20:33,239 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 22:20:33,239 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] [2021-12-06 22:20:33,370 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-12-06 22:20:33,439 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 22:20:33,440 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 22:20:33,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:20:33,441 INFO L85 PathProgramCache]: Analyzing trace with hash 2074200846, now seen corresponding path program 1 times [2021-12-06 22:20:33,449 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 22:20:33,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1916775483] [2021-12-06 22:20:33,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:20:33,450 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 22:20:33,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 22:20:33,451 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 22:20:33,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-12-06 22:20:41,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:20:42,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 7808 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-06 22:20:42,743 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 22:20:42,940 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-06 22:20:42,940 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 22:20:42,941 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 22:20:42,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1916775483] [2021-12-06 22:20:42,941 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1916775483] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:20:42,941 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:20:42,941 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 22:20:42,941 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355989296] [2021-12-06 22:20:42,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:20:42,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 22:20:42,942 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 22:20:42,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 22:20:42,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 22:20:42,942 INFO L87 Difference]: Start difference. First operand 3346 states and 4915 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-06 22:20:43,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 22:20:43,108 INFO L93 Difference]: Finished difference Result 6188 states and 9042 transitions. [2021-12-06 22:20:43,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 22:20:43,109 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) Word has length 82 [2021-12-06 22:20:43,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 22:20:43,123 INFO L225 Difference]: With dead ends: 6188 [2021-12-06 22:20:43,123 INFO L226 Difference]: Without dead ends: 2849 [2021-12-06 22:20:43,132 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-06 22:20:43,132 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 [2021-12-06 22:20:43,133 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] [2021-12-06 22:20:43,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2849 states. [2021-12-06 22:20:43,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2849 to 2841. [2021-12-06 22:20:43,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2841 states, 2188 states have (on average 1.410420475319927) internal successors, (3086), 2244 states have internal predecessors, (3086), 498 states have call successors, (498), 149 states have call predecessors, (498), 154 states have return successors, (518), 491 states have call predecessors, (518), 496 states have call successors, (518) [2021-12-06 22:20:43,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2841 states to 2841 states and 4102 transitions. [2021-12-06 22:20:43,212 INFO L78 Accepts]: Start accepts. Automaton has 2841 states and 4102 transitions. Word has length 82 [2021-12-06 22:20:43,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 22:20:43,212 INFO L470 AbstractCegarLoop]: Abstraction has 2841 states and 4102 transitions. [2021-12-06 22:20:43,212 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 5 states have internal predecessors, (58), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (9), 3 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-06 22:20:43,212 INFO L276 IsEmpty]: Start isEmpty. Operand 2841 states and 4102 transitions. [2021-12-06 22:20:43,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-12-06 22:20:43,215 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 22:20:43,215 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] [2021-12-06 22:20:43,350 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-12-06 22:20:43,415 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 22:20:43,415 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 22:20:43,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:20:43,416 INFO L85 PathProgramCache]: Analyzing trace with hash -575124009, now seen corresponding path program 1 times [2021-12-06 22:20:43,422 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 22:20:43,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [897092818] [2021-12-06 22:20:43,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:20:43,422 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 22:20:43,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 22:20:43,423 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 22:20:43,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-12-06 22:20:51,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:20:52,527 INFO L263 TraceCheckSpWp]: Trace formula consists of 7792 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-06 22:20:52,531 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 22:20:52,713 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-06 22:20:52,713 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 22:20:52,714 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 22:20:52,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [897092818] [2021-12-06 22:20:52,714 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [897092818] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:20:52,714 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:20:52,714 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 22:20:52,714 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33171564] [2021-12-06 22:20:52,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:20:52,715 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 22:20:52,715 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 22:20:52,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 22:20:52,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 22:20:52,715 INFO L87 Difference]: Start difference. First operand 2841 states and 4102 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 5 states have internal predecessors, (59), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 1 states have call successors, (9) [2021-12-06 22:20:52,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 22:20:52,858 INFO L93 Difference]: Finished difference Result 4529 states and 6586 transitions. [2021-12-06 22:20:52,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 22:20:52,859 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 5 states have internal predecessors, (59), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 1 states have call successors, (9) Word has length 81 [2021-12-06 22:20:52,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 22:20:52,873 INFO L225 Difference]: With dead ends: 4529 [2021-12-06 22:20:52,873 INFO L226 Difference]: Without dead ends: 2841 [2021-12-06 22:20:52,879 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-06 22:20:52,879 INFO L933 BasicCegarLoop]: 903 mSDtfsCounter, 14 mSDsluCounter, 3582 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 4485 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 22:20:52,879 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 4485 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 22:20:52,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2841 states. [2021-12-06 22:20:52,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2841 to 2837. [2021-12-06 22:20:52,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2837 states, 2186 states have (on average 1.4098810612991766) internal successors, (3082), 2240 states have internal predecessors, (3082), 498 states have call successors, (498), 149 states have call predecessors, (498), 152 states have return successors, (510), 491 states have call predecessors, (510), 496 states have call successors, (510) [2021-12-06 22:20:52,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2837 states to 2837 states and 4090 transitions. [2021-12-06 22:20:52,956 INFO L78 Accepts]: Start accepts. Automaton has 2837 states and 4090 transitions. Word has length 81 [2021-12-06 22:20:52,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 22:20:52,957 INFO L470 AbstractCegarLoop]: Abstraction has 2837 states and 4090 transitions. [2021-12-06 22:20:52,957 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 5 states have internal predecessors, (59), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 1 states have call successors, (9) [2021-12-06 22:20:52,957 INFO L276 IsEmpty]: Start isEmpty. Operand 2837 states and 4090 transitions. [2021-12-06 22:20:52,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-12-06 22:20:52,960 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 22:20:52,960 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] [2021-12-06 22:20:53,097 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-12-06 22:20:53,160 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 22:20:53,161 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 22:20:53,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:20:53,161 INFO L85 PathProgramCache]: Analyzing trace with hash -631103340, now seen corresponding path program 1 times [2021-12-06 22:20:53,167 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 22:20:53,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1609218723] [2021-12-06 22:20:53,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:20:53,167 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 22:20:53,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 22:20:53,168 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 22:20:53,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-12-06 22:21:01,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:21:02,232 INFO L263 TraceCheckSpWp]: Trace formula consists of 7811 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-06 22:21:02,236 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 22:21:02,826 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-06 22:21:02,826 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 22:21:02,826 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 22:21:02,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1609218723] [2021-12-06 22:21:02,826 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1609218723] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:21:02,827 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:21:02,827 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 22:21:02,827 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816085614] [2021-12-06 22:21:02,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:21:02,827 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 22:21:02,827 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 22:21:02,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 22:21:02,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 22:21:02,828 INFO L87 Difference]: Start difference. First operand 2837 states and 4090 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-06 22:21:05,590 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.76s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:21:07,609 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:21:09,627 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:21:13,786 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:21:15,797 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:21:18,287 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:21:20,300 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:21:26,113 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:21:28,125 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:21:31,792 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:21:33,799 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:21:38,351 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:21:41,606 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:21:42,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 22:21:42,918 INFO L93 Difference]: Finished difference Result 7895 states and 11522 transitions. [2021-12-06 22:21:42,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 22:21:42,920 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), 3 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 84 [2021-12-06 22:21:42,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 22:21:42,953 INFO L225 Difference]: With dead ends: 7895 [2021-12-06 22:21:42,953 INFO L226 Difference]: Without dead ends: 6205 [2021-12-06 22:21:42,960 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-12-06 22:21:42,960 INFO L933 BasicCegarLoop]: 1619 mSDtfsCounter, 2547 mSDsluCounter, 2336 mSDsCounter, 0 mSdLazyCounter, 2658 mSolverCounterSat, 608 mSolverCounterUnsat, 13 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2703 SdHoareTripleChecker+Valid, 3955 SdHoareTripleChecker+Invalid, 3279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 608 IncrementalHoareTripleChecker+Valid, 2658 IncrementalHoareTripleChecker+Invalid, 13 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.7s IncrementalHoareTripleChecker+Time [2021-12-06 22:21:42,960 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2703 Valid, 3955 Invalid, 3279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [608 Valid, 2658 Invalid, 13 Unknown, 0 Unchecked, 39.7s Time] [2021-12-06 22:21:42,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6205 states. [2021-12-06 22:21:43,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6205 to 6170. [2021-12-06 22:21:43,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6170 states, 4749 states have (on average 1.414403032217309) internal successors, (6717), 4871 states have internal predecessors, (6717), 1102 states have call successors, (1102), 301 states have call predecessors, (1102), 318 states have return successors, (1166), 1097 states have call predecessors, (1166), 1100 states have call successors, (1166) [2021-12-06 22:21:43,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6170 states to 6170 states and 8985 transitions. [2021-12-06 22:21:43,131 INFO L78 Accepts]: Start accepts. Automaton has 6170 states and 8985 transitions. Word has length 84 [2021-12-06 22:21:43,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 22:21:43,131 INFO L470 AbstractCegarLoop]: Abstraction has 6170 states and 8985 transitions. [2021-12-06 22:21:43,131 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), 3 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-06 22:21:43,131 INFO L276 IsEmpty]: Start isEmpty. Operand 6170 states and 8985 transitions. [2021-12-06 22:21:43,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-12-06 22:21:43,134 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 22:21:43,134 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] [2021-12-06 22:21:43,268 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (10)] Ended with exit code 0 [2021-12-06 22:21:43,335 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 22:21:43,335 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 22:21:43,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:21:43,336 INFO L85 PathProgramCache]: Analyzing trace with hash -2100447070, now seen corresponding path program 1 times [2021-12-06 22:21:43,355 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 22:21:43,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1268809515] [2021-12-06 22:21:43,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:21:43,356 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 22:21:43,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 22:21:43,358 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 22:21:43,359 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-12-06 22:21:51,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:21:52,381 INFO L263 TraceCheckSpWp]: Trace formula consists of 7822 conjuncts, 26 conjunts are in the unsatisfiable core [2021-12-06 22:21:52,385 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 22:21:53,683 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-06 22:21:53,684 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 [2021-12-06 22:21:53,735 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-12-06 22:21:53,735 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 [2021-12-06 22:21:54,211 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-06 22:21:54,212 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 22:21:54,212 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 22:21:54,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1268809515] [2021-12-06 22:21:54,212 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1268809515] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:21:54,212 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:21:54,212 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-06 22:21:54,212 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799395014] [2021-12-06 22:21:54,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:21:54,213 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-06 22:21:54,213 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 22:21:54,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-06 22:21:54,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-12-06 22:21:54,213 INFO L87 Difference]: Start difference. First operand 6170 states and 8985 transitions. Second operand has 10 states, 8 states have (on average 8.375) internal successors, (67), 10 states have internal predecessors, (67), 5 states have call successors, (12), 3 states have call predecessors, (12), 5 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2021-12-06 22:21:57,003 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.78s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:21:59,919 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:22:01,999 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:22:04,176 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:22:06,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 22:22:06,622 INFO L93 Difference]: Finished difference Result 11261 states and 16458 transitions. [2021-12-06 22:22:06,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-06 22:22:06,624 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 8.375) internal successors, (67), 10 states have internal predecessors, (67), 5 states have call successors, (12), 3 states have call predecessors, (12), 5 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) Word has length 93 [2021-12-06 22:22:06,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 22:22:06,649 INFO L225 Difference]: With dead ends: 11261 [2021-12-06 22:22:06,649 INFO L226 Difference]: Without dead ends: 6244 [2021-12-06 22:22:06,663 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 83 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2021-12-06 22:22:06,664 INFO L933 BasicCegarLoop]: 902 mSDtfsCounter, 26 mSDsluCounter, 6118 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 7020 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 88 IncrementalHoareTripleChecker+Unchecked, 11.8s IncrementalHoareTripleChecker+Time [2021-12-06 22:22:06,664 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 7020 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 148 Invalid, 4 Unknown, 88 Unchecked, 11.8s Time] [2021-12-06 22:22:06,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6244 states. [2021-12-06 22:22:06,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6244 to 6184. [2021-12-06 22:22:06,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6184 states, 4757 states have (on average 1.4137061173008199) internal successors, (6725), 4883 states have internal predecessors, (6725), 1102 states have call successors, (1102), 305 states have call predecessors, (1102), 324 states have return successors, (1166), 1095 states have call predecessors, (1166), 1100 states have call successors, (1166) [2021-12-06 22:22:06,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6184 states to 6184 states and 8993 transitions. [2021-12-06 22:22:06,882 INFO L78 Accepts]: Start accepts. Automaton has 6184 states and 8993 transitions. Word has length 93 [2021-12-06 22:22:06,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 22:22:06,882 INFO L470 AbstractCegarLoop]: Abstraction has 6184 states and 8993 transitions. [2021-12-06 22:22:06,882 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 8.375) internal successors, (67), 10 states have internal predecessors, (67), 5 states have call successors, (12), 3 states have call predecessors, (12), 5 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2021-12-06 22:22:06,882 INFO L276 IsEmpty]: Start isEmpty. Operand 6184 states and 8993 transitions. [2021-12-06 22:22:06,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-12-06 22:22:06,885 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 22:22:06,885 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] [2021-12-06 22:22:07,027 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (11)] Ended with exit code 0 [2021-12-06 22:22:07,085 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 22:22:07,086 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 22:22:07,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:22:07,086 INFO L85 PathProgramCache]: Analyzing trace with hash -1363964116, now seen corresponding path program 1 times [2021-12-06 22:22:07,092 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 22:22:07,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1877981321] [2021-12-06 22:22:07,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:22:07,093 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 22:22:07,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 22:22:07,094 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 22:22:07,094 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-12-06 22:22:15,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:22:16,205 INFO L263 TraceCheckSpWp]: Trace formula consists of 7844 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-06 22:22:16,208 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 22:22:16,373 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-06 22:22:16,374 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 22:22:16,374 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 22:22:16,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1877981321] [2021-12-06 22:22:16,374 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1877981321] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:22:16,374 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:22:16,374 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 22:22:16,374 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874857070] [2021-12-06 22:22:16,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:22:16,375 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 22:22:16,375 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 22:22:16,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 22:22:16,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 22:22:16,376 INFO L87 Difference]: Start difference. First operand 6184 states and 8993 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) [2021-12-06 22:22:16,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 22:22:16,601 INFO L93 Difference]: Finished difference Result 7484 states and 11094 transitions. [2021-12-06 22:22:16,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 22:22:16,601 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 [2021-12-06 22:22:16,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 22:22:16,626 INFO L225 Difference]: With dead ends: 7484 [2021-12-06 22:22:16,626 INFO L226 Difference]: Without dead ends: 7479 [2021-12-06 22:22:16,630 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-06 22:22:16,631 INFO L933 BasicCegarLoop]: 1270 mSDtfsCounter, 286 mSDsluCounter, 3457 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 4727 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-06 22:22:16,631 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [346 Valid, 4727 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-06 22:22:16,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7479 states. [2021-12-06 22:22:16,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7479 to 6194. [2021-12-06 22:22:16,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6194 states, 4765 states have (on average 1.412591815320042) internal successors, (6731), 4891 states have internal predecessors, (6731), 1102 states have call successors, (1102), 305 states have call predecessors, (1102), 326 states have return successors, (1174), 1097 states have call predecessors, (1174), 1100 states have call successors, (1174) [2021-12-06 22:22:16,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6194 states to 6194 states and 9007 transitions. [2021-12-06 22:22:16,813 INFO L78 Accepts]: Start accepts. Automaton has 6194 states and 9007 transitions. Word has length 93 [2021-12-06 22:22:16,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 22:22:16,813 INFO L470 AbstractCegarLoop]: Abstraction has 6194 states and 9007 transitions. [2021-12-06 22:22:16,813 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) [2021-12-06 22:22:16,813 INFO L276 IsEmpty]: Start isEmpty. Operand 6194 states and 9007 transitions. [2021-12-06 22:22:16,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-12-06 22:22:16,817 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 22:22:16,817 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] [2021-12-06 22:22:16,953 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (12)] Ended with exit code 0 [2021-12-06 22:22:17,017 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 22:22:17,018 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 22:22:17,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:22:17,018 INFO L85 PathProgramCache]: Analyzing trace with hash 1791418784, now seen corresponding path program 1 times [2021-12-06 22:22:17,024 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 22:22:17,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1282431537] [2021-12-06 22:22:17,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:22:17,024 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 22:22:17,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 22:22:17,025 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 22:22:17,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-12-06 22:22:25,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:22:26,099 INFO L263 TraceCheckSpWp]: Trace formula consists of 7848 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 22:22:26,102 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 22:22:26,258 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-06 22:22:26,259 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 22:22:26,259 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 22:22:26,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1282431537] [2021-12-06 22:22:26,259 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1282431537] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:22:26,259 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:22:26,259 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-06 22:22:26,260 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643718494] [2021-12-06 22:22:26,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:22:26,260 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-06 22:22:26,260 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 22:22:26,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-06 22:22:26,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 22:22:26,261 INFO L87 Difference]: Start difference. First operand 6194 states and 9007 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) [2021-12-06 22:22:27,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 22:22:27,218 INFO L93 Difference]: Finished difference Result 11235 states and 16376 transitions. [2021-12-06 22:22:27,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-06 22:22:27,220 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 [2021-12-06 22:22:27,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 22:22:27,239 INFO L225 Difference]: With dead ends: 11235 [2021-12-06 22:22:27,239 INFO L226 Difference]: Without dead ends: 6194 [2021-12-06 22:22:27,252 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-06 22:22:27,253 INFO L933 BasicCegarLoop]: 1258 mSDtfsCounter, 542 mSDsluCounter, 1743 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 654 SdHoareTripleChecker+Valid, 3001 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-06 22:22:27,253 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [654 Valid, 3001 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-06 22:22:27,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6194 states. [2021-12-06 22:22:27,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6194 to 6194. [2021-12-06 22:22:27,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6194 states, 4765 states have (on average 1.4092339979013642) internal successors, (6715), 4891 states have internal predecessors, (6715), 1102 states have call successors, (1102), 305 states have call predecessors, (1102), 326 states have return successors, (1174), 1097 states have call predecessors, (1174), 1100 states have call successors, (1174) [2021-12-06 22:22:27,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6194 states to 6194 states and 8991 transitions. [2021-12-06 22:22:27,416 INFO L78 Accepts]: Start accepts. Automaton has 6194 states and 8991 transitions. Word has length 96 [2021-12-06 22:22:27,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 22:22:27,416 INFO L470 AbstractCegarLoop]: Abstraction has 6194 states and 8991 transitions. [2021-12-06 22:22:27,416 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) [2021-12-06 22:22:27,416 INFO L276 IsEmpty]: Start isEmpty. Operand 6194 states and 8991 transitions. [2021-12-06 22:22:27,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-12-06 22:22:27,420 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 22:22:27,420 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] [2021-12-06 22:22:27,550 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (13)] Ended with exit code 0 [2021-12-06 22:22:27,621 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 22:22:27,621 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 22:22:27,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:22:27,621 INFO L85 PathProgramCache]: Analyzing trace with hash -1096108951, now seen corresponding path program 1 times [2021-12-06 22:22:27,628 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 22:22:27,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [769017803] [2021-12-06 22:22:27,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:22:27,629 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 22:22:27,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 22:22:27,629 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 22:22:27,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_348248e7-7f7e-4aee-a264-148cb39e86cc/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process