./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-pci-cx88-cx8800.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154f7a76-7ecc-4a7f-b6cf-f3675c72ca56/bin/uautomizer-w2VwFs6gM0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154f7a76-7ecc-4a7f-b6cf-f3675c72ca56/bin/uautomizer-w2VwFs6gM0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154f7a76-7ecc-4a7f-b6cf-f3675c72ca56/bin/uautomizer-w2VwFs6gM0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154f7a76-7ecc-4a7f-b6cf-f3675c72ca56/bin/uautomizer-w2VwFs6gM0/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-pci-cx88-cx8800.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154f7a76-7ecc-4a7f-b6cf-f3675c72ca56/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154f7a76-7ecc-4a7f-b6cf-f3675c72ca56/bin/uautomizer-w2VwFs6gM0 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 24e26672720ca570553d18d605e2ce47cd111ea61f1f4153430b6ee115172355 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 14:35:20,332 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 14:35:20,346 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 14:35:20,397 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 14:35:20,398 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 14:35:20,402 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 14:35:20,404 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 14:35:20,409 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 14:35:20,412 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 14:35:20,419 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 14:35:20,420 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 14:35:20,422 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 14:35:20,423 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 14:35:20,426 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 14:35:20,428 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 14:35:20,434 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 14:35:20,436 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 14:35:20,437 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 14:35:20,439 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 14:35:20,447 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 14:35:20,449 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 14:35:20,450 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 14:35:20,454 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 14:35:20,455 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 14:35:20,464 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 14:35:20,464 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 14:35:20,465 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 14:35:20,467 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 14:35:20,468 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 14:35:20,469 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 14:35:20,470 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 14:35:20,471 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 14:35:20,473 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 14:35:20,474 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 14:35:20,476 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 14:35:20,476 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 14:35:20,477 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 14:35:20,477 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 14:35:20,478 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 14:35:20,479 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 14:35:20,479 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 14:35:20,480 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154f7a76-7ecc-4a7f-b6cf-f3675c72ca56/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-22 14:35:20,521 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 14:35:20,522 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 14:35:20,522 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 14:35:20,523 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 14:35:20,524 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 14:35:20,524 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 14:35:20,525 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 14:35:20,525 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 14:35:20,525 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 14:35:20,525 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 14:35:20,527 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 14:35:20,527 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 14:35:20,527 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 14:35:20,527 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 14:35:20,528 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 14:35:20,528 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 14:35:20,528 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 14:35:20,528 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 14:35:20,529 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 14:35:20,529 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 14:35:20,529 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 14:35:20,529 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 14:35:20,530 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 14:35:20,530 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-22 14:35:20,530 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 14:35:20,530 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-22 14:35:20,530 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-22 14:35:20,531 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 14:35:20,531 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 14:35:20,533 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_154f7a76-7ecc-4a7f-b6cf-f3675c72ca56/bin/uautomizer-w2VwFs6gM0/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154f7a76-7ecc-4a7f-b6cf-f3675c72ca56/bin/uautomizer-w2VwFs6gM0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 24e26672720ca570553d18d605e2ce47cd111ea61f1f4153430b6ee115172355 [2021-11-22 14:35:20,837 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 14:35:20,862 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 14:35:20,865 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 14:35:20,866 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 14:35:20,867 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 14:35:20,869 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154f7a76-7ecc-4a7f-b6cf-f3675c72ca56/bin/uautomizer-w2VwFs6gM0/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-pci-cx88-cx8800.cil.i [2021-11-22 14:35:20,939 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154f7a76-7ecc-4a7f-b6cf-f3675c72ca56/bin/uautomizer-w2VwFs6gM0/data/a3b75aecd/dac93670115f4053bb894e91f4e2f11a/FLAGf4a24cb38 [2021-11-22 14:35:22,164 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 14:35:22,165 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154f7a76-7ecc-4a7f-b6cf-f3675c72ca56/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-pci-cx88-cx8800.cil.i [2021-11-22 14:35:22,244 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154f7a76-7ecc-4a7f-b6cf-f3675c72ca56/bin/uautomizer-w2VwFs6gM0/data/a3b75aecd/dac93670115f4053bb894e91f4e2f11a/FLAGf4a24cb38 [2021-11-22 14:35:22,323 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154f7a76-7ecc-4a7f-b6cf-f3675c72ca56/bin/uautomizer-w2VwFs6gM0/data/a3b75aecd/dac93670115f4053bb894e91f4e2f11a [2021-11-22 14:35:22,325 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 14:35:22,326 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 14:35:22,331 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 14:35:22,331 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 14:35:22,335 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 14:35:22,335 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:35:22" (1/1) ... [2021-11-22 14:35:22,337 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52807572 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:35:22, skipping insertion in model container [2021-11-22 14:35:22,337 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:35:22" (1/1) ... [2021-11-22 14:35:22,346 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 14:35:22,579 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 14:35:27,331 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_154f7a76-7ecc-4a7f-b6cf-f3675c72ca56/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-pci-cx88-cx8800.cil.i[588527,588540] [2021-11-22 14:35:27,334 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_154f7a76-7ecc-4a7f-b6cf-f3675c72ca56/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-pci-cx88-cx8800.cil.i[588672,588685] [2021-11-22 14:35:27,361 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 14:35:27,527 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 14:35:28,433 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154f7a76-7ecc-4a7f-b6cf-f3675c72ca56/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-pci-cx88-cx8800.cil.i[588527,588540] [2021-11-22 14:35:28,433 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154f7a76-7ecc-4a7f-b6cf-f3675c72ca56/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-pci-cx88-cx8800.cil.i[588672,588685] [2021-11-22 14:35:28,443 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 14:35:28,690 INFO L208 MainTranslator]: Completed translation [2021-11-22 14:35:28,690 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:35:28 WrapperNode [2021-11-22 14:35:28,691 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 14:35:28,692 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 14:35:28,692 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 14:35:28,692 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 14:35:28,699 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:35:28" (1/1) ... [2021-11-22 14:35:28,831 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:35:28" (1/1) ... [2021-11-22 14:35:29,598 INFO L137 Inliner]: procedures = 538, calls = 4280, calls flagged for inlining = 1202, calls inlined = 2687, statements flattened = 31252 [2021-11-22 14:35:29,599 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 14:35:29,600 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 14:35:29,600 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 14:35:29,600 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 14:35:29,608 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:35:28" (1/1) ... [2021-11-22 14:35:29,609 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:35:28" (1/1) ... [2021-11-22 14:35:29,837 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:35:28" (1/1) ... [2021-11-22 14:35:29,838 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:35:28" (1/1) ... [2021-11-22 14:35:30,426 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:35:28" (1/1) ... [2021-11-22 14:35:30,537 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:35:28" (1/1) ... [2021-11-22 14:35:30,637 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:35:28" (1/1) ... [2021-11-22 14:35:30,905 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 14:35:30,906 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 14:35:30,906 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 14:35:30,907 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 14:35:30,908 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:35:28" (1/1) ... [2021-11-22 14:35:30,927 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 14:35:30,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154f7a76-7ecc-4a7f-b6cf-f3675c72ca56/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 14:35:30,973 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154f7a76-7ecc-4a7f-b6cf-f3675c72ca56/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-22 14:35:31,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154f7a76-7ecc-4a7f-b6cf-f3675c72ca56/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-22 14:35:31,099 INFO L130 BoogieDeclarations]: Found specification of procedure video_open [2021-11-22 14:35:31,099 INFO L138 BoogieDeclarations]: Found implementation of procedure video_open [2021-11-22 14:35:31,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-22 14:35:31,099 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_audio_thread [2021-11-22 14:35:31,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-22 14:35:31,100 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-22 14:35:31,100 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_set_freq [2021-11-22 14:35:31,100 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_set_freq [2021-11-22 14:35:31,100 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-22 14:35:31,100 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 14:35:31,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-22 14:35:31,100 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-22 14:35:31,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-22 14:35:31,101 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 14:35:31,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 14:35:31,101 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-22 14:35:31,101 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-22 14:35:31,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-22 14:35:31,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-22 14:35:31,101 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-22 14:35:31,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-22 14:35:31,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 14:35:33,154 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 14:35:33,156 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 14:36:05,816 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#4: ldv_switch_1_#res#1 := 0; [2021-11-22 14:36:05,817 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res#1 := 0; [2021-11-22 14:36:05,817 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res#1 := 0; [2021-11-22 14:36:05,817 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#1: ldv_switch_1_#res#1 := 0; [2021-11-22 14:36:05,817 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#1: ldv_switch_2_#res#1 := 0; [2021-11-22 14:36:05,817 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#2: ldv_switch_2_#res#1 := 0; [2021-11-22 14:36:05,818 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#3: ldv_switch_2_#res#1 := 0; [2021-11-22 14:36:05,818 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#4: ldv_switch_2_#res#1 := 0; [2021-11-22 14:36:05,818 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#3: ldv_switch_0_#res#1 := 0; [2021-11-22 14:36:05,819 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#1: ldv_switch_0_#res#1 := 0; [2021-11-22 14:36:05,819 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res#1 := 0; [2021-11-22 14:36:05,820 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-22 14:36:07,842 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 14:36:07,894 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 14:36:07,894 INFO L301 CfgBuilder]: Removed 11 assume(true) statements. [2021-11-22 14:36:07,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:36:07 BoogieIcfgContainer [2021-11-22 14:36:07,902 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 14:36:07,903 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-22 14:36:07,904 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-22 14:36:07,907 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-22 14:36:07,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:35:22" (1/3) ... [2021-11-22 14:36:07,908 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e0237f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:36:07, skipping insertion in model container [2021-11-22 14:36:07,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:35:28" (2/3) ... [2021-11-22 14:36:07,909 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e0237f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:36:07, skipping insertion in model container [2021-11-22 14:36:07,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:36:07" (3/3) ... [2021-11-22 14:36:07,910 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-pci-cx88-cx8800.cil.i [2021-11-22 14:36:07,915 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-22 14:36:07,916 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-22 14:36:08,002 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-22 14:36:08,013 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-22 14:36:08,013 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-22 14:36:08,116 INFO L276 IsEmpty]: Start isEmpty. Operand has 5575 states, 5553 states have (on average 1.296776517197911) internal successors, (7201), 5555 states have internal predecessors, (7201), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2021-11-22 14:36:08,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2021-11-22 14:36:08,153 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:36:08,155 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:36:08,155 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION === [video_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 14:36:08,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:36:08,161 INFO L85 PathProgramCache]: Analyzing trace with hash -1764937680, now seen corresponding path program 1 times [2021-11-22 14:36:08,170 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:36:08,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457999293] [2021-11-22 14:36:08,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:36:08,172 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:36:08,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:36:09,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:36:09,333 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:36:09,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457999293] [2021-11-22 14:36:09,334 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457999293] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:36:09,334 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:36:09,334 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 14:36:09,336 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773437370] [2021-11-22 14:36:09,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:36:09,341 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 14:36:09,341 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:36:09,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 14:36:09,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 14:36:09,419 INFO L87 Difference]: Start difference. First operand has 5575 states, 5553 states have (on average 1.296776517197911) internal successors, (7201), 5555 states have internal predecessors, (7201), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:36:10,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:36:10,333 INFO L93 Difference]: Finished difference Result 14741 states and 19121 transitions. [2021-11-22 14:36:10,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 14:36:10,336 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 177 [2021-11-22 14:36:10,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:36:10,420 INFO L225 Difference]: With dead ends: 14741 [2021-11-22 14:36:10,421 INFO L226 Difference]: Without dead ends: 8749 [2021-11-22 14:36:10,461 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 14:36:10,469 INFO L933 BasicCegarLoop]: 7812 mSDtfsCounter, 5216 mSDsluCounter, 7049 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5216 SdHoareTripleChecker+Valid, 14861 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-22 14:36:10,470 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5216 Valid, 14861 Invalid, 150 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [13 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-22 14:36:10,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8749 states. [2021-11-22 14:36:10,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8749 to 8735. [2021-11-22 14:36:10,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8735 states, 8699 states have (on average 1.2315208644671802) internal successors, (10713), 8701 states have internal predecessors, (10713), 25 states have call successors, (25), 8 states have call predecessors, (25), 8 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2021-11-22 14:36:10,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8735 states to 8735 states and 10763 transitions. [2021-11-22 14:36:10,891 INFO L78 Accepts]: Start accepts. Automaton has 8735 states and 10763 transitions. Word has length 177 [2021-11-22 14:36:10,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:36:10,895 INFO L470 AbstractCegarLoop]: Abstraction has 8735 states and 10763 transitions. [2021-11-22 14:36:10,895 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:36:10,897 INFO L276 IsEmpty]: Start isEmpty. Operand 8735 states and 10763 transitions. [2021-11-22 14:36:10,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2021-11-22 14:36:10,911 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:36:10,912 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:36:10,912 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-22 14:36:10,912 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [video_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 14:36:10,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:36:10,914 INFO L85 PathProgramCache]: Analyzing trace with hash -992697267, now seen corresponding path program 1 times [2021-11-22 14:36:10,915 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:36:10,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852617110] [2021-11-22 14:36:10,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:36:10,915 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:36:11,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:36:11,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:36:11,649 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:36:11,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852617110] [2021-11-22 14:36:11,650 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852617110] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:36:11,650 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:36:11,650 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 14:36:11,651 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481761082] [2021-11-22 14:36:11,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:36:11,657 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 14:36:11,658 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:36:11,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 14:36:11,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 14:36:11,660 INFO L87 Difference]: Start difference. First operand 8735 states and 10763 transitions. Second operand has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:36:12,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:36:12,503 INFO L93 Difference]: Finished difference Result 23853 states and 29564 transitions. [2021-11-22 14:36:12,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 14:36:12,505 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 181 [2021-11-22 14:36:12,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:36:12,620 INFO L225 Difference]: With dead ends: 23853 [2021-11-22 14:36:12,620 INFO L226 Difference]: Without dead ends: 15515 [2021-11-22 14:36:12,651 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 14:36:12,654 INFO L933 BasicCegarLoop]: 6656 mSDtfsCounter, 4794 mSDsluCounter, 6137 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4794 SdHoareTripleChecker+Valid, 12793 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-22 14:36:12,655 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4794 Valid, 12793 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-22 14:36:12,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15515 states. [2021-11-22 14:36:13,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15515 to 15503. [2021-11-22 14:36:13,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15503 states, 15436 states have (on average 1.2379502461777663) internal successors, (19109), 15438 states have internal predecessors, (19109), 48 states have call successors, (48), 16 states have call predecessors, (48), 16 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2021-11-22 14:36:13,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15503 states to 15503 states and 19205 transitions. [2021-11-22 14:36:13,259 INFO L78 Accepts]: Start accepts. Automaton has 15503 states and 19205 transitions. Word has length 181 [2021-11-22 14:36:13,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:36:13,260 INFO L470 AbstractCegarLoop]: Abstraction has 15503 states and 19205 transitions. [2021-11-22 14:36:13,261 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:36:13,262 INFO L276 IsEmpty]: Start isEmpty. Operand 15503 states and 19205 transitions. [2021-11-22 14:36:13,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2021-11-22 14:36:13,270 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:36:13,271 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:36:13,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-22 14:36:13,271 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION === [video_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 14:36:13,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:36:13,272 INFO L85 PathProgramCache]: Analyzing trace with hash -428212796, now seen corresponding path program 1 times [2021-11-22 14:36:13,272 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:36:13,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828387419] [2021-11-22 14:36:13,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:36:13,273 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:36:13,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:36:13,984 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:36:13,984 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:36:13,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828387419] [2021-11-22 14:36:13,985 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828387419] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:36:13,985 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:36:13,985 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 14:36:13,985 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549724464] [2021-11-22 14:36:13,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:36:13,986 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 14:36:13,986 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:36:13,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 14:36:13,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 14:36:13,988 INFO L87 Difference]: Start difference. First operand 15503 states and 19205 transitions. Second operand has 3 states, 3 states have (on average 65.0) internal successors, (195), 3 states have internal predecessors, (195), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:36:14,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:36:14,883 INFO L93 Difference]: Finished difference Result 33486 states and 41549 transitions. [2021-11-22 14:36:14,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 14:36:14,884 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.0) internal successors, (195), 3 states have internal predecessors, (195), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 196 [2021-11-22 14:36:14,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:36:14,972 INFO L225 Difference]: With dead ends: 33486 [2021-11-22 14:36:14,972 INFO L226 Difference]: Without dead ends: 18380 [2021-11-22 14:36:15,020 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 14:36:15,021 INFO L933 BasicCegarLoop]: 6659 mSDtfsCounter, 3590 mSDsluCounter, 6138 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3590 SdHoareTripleChecker+Valid, 12797 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-22 14:36:15,022 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3590 Valid, 12797 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-22 14:36:15,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18380 states. [2021-11-22 14:36:15,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18380 to 18376. [2021-11-22 14:36:15,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18376 states, 18296 states have (on average 1.2388500218627023) internal successors, (22666), 18298 states have internal predecessors, (22666), 57 states have call successors, (57), 20 states have call predecessors, (57), 20 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2021-11-22 14:36:15,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18376 states to 18376 states and 22780 transitions. [2021-11-22 14:36:15,968 INFO L78 Accepts]: Start accepts. Automaton has 18376 states and 22780 transitions. Word has length 196 [2021-11-22 14:36:15,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:36:15,969 INFO L470 AbstractCegarLoop]: Abstraction has 18376 states and 22780 transitions. [2021-11-22 14:36:15,969 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.0) internal successors, (195), 3 states have internal predecessors, (195), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:36:15,969 INFO L276 IsEmpty]: Start isEmpty. Operand 18376 states and 22780 transitions. [2021-11-22 14:36:15,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2021-11-22 14:36:15,976 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:36:15,976 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:36:15,976 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-22 14:36:15,977 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting video_openErr0ASSERT_VIOLATIONERROR_FUNCTION === [video_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 14:36:15,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:36:15,977 INFO L85 PathProgramCache]: Analyzing trace with hash -1840314850, now seen corresponding path program 1 times [2021-11-22 14:36:15,977 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:36:15,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131856367] [2021-11-22 14:36:15,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:36:15,978 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:36:16,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:36:16,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:36:16,643 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:36:16,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131856367] [2021-11-22 14:36:16,643 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131856367] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:36:16,643 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:36:16,643 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 14:36:16,644 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091550848] [2021-11-22 14:36:16,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:36:16,644 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 14:36:16,645 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:36:16,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 14:36:16,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 14:36:16,646 INFO L87 Difference]: Start difference. First operand 18376 states and 22780 transitions. Second operand has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:36:17,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:36:17,973 INFO L93 Difference]: Finished difference Result 44080 states and 54598 transitions. [2021-11-22 14:36:17,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 14:36:17,974 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 199 [2021-11-22 14:36:17,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:36:18,074 INFO L225 Difference]: With dead ends: 44080 [2021-11-22 14:36:18,074 INFO L226 Difference]: Without dead ends: 26101 [2021-11-22 14:36:18,123 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 14:36:18,128 INFO L933 BasicCegarLoop]: 7960 mSDtfsCounter, 4477 mSDsluCounter, 6061 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4477 SdHoareTripleChecker+Valid, 14021 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-22 14:36:18,129 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4477 Valid, 14021 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-22 14:36:18,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26101 states. [2021-11-22 14:36:19,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26101 to 26083. [2021-11-22 14:36:19,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26083 states, 25982 states have (on average 1.2337387422061428) internal successors, (32055), 25984 states have internal predecessors, (32055), 72 states have call successors, (72), 26 states have call predecessors, (72), 26 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2021-11-22 14:36:19,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26083 states to 26083 states and 32199 transitions. [2021-11-22 14:36:19,225 INFO L78 Accepts]: Start accepts. Automaton has 26083 states and 32199 transitions. Word has length 199 [2021-11-22 14:36:19,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:36:19,225 INFO L470 AbstractCegarLoop]: Abstraction has 26083 states and 32199 transitions. [2021-11-22 14:36:19,226 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:36:19,226 INFO L276 IsEmpty]: Start isEmpty. Operand 26083 states and 32199 transitions. [2021-11-22 14:36:19,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2021-11-22 14:36:19,235 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:36:19,236 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:36:19,236 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-22 14:36:19,237 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [video_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 14:36:19,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:36:19,237 INFO L85 PathProgramCache]: Analyzing trace with hash 1467638816, now seen corresponding path program 1 times [2021-11-22 14:36:19,237 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:36:19,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332324776] [2021-11-22 14:36:19,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:36:19,238 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:36:19,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:36:20,035 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:36:20,035 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:36:20,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332324776] [2021-11-22 14:36:20,040 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332324776] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:36:20,040 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:36:20,040 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 14:36:20,041 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557730293] [2021-11-22 14:36:20,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:36:20,041 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 14:36:20,042 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:36:20,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 14:36:20,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 14:36:20,044 INFO L87 Difference]: Start difference. First operand 26083 states and 32199 transitions. Second operand has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:36:21,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:36:21,529 INFO L93 Difference]: Finished difference Result 61452 states and 76074 transitions. [2021-11-22 14:36:21,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 14:36:21,530 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 219 [2021-11-22 14:36:21,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:36:21,679 INFO L225 Difference]: With dead ends: 61452 [2021-11-22 14:36:21,679 INFO L226 Difference]: Without dead ends: 36670 [2021-11-22 14:36:21,740 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 14:36:21,741 INFO L933 BasicCegarLoop]: 10987 mSDtfsCounter, 4795 mSDsluCounter, 6121 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4795 SdHoareTripleChecker+Valid, 17108 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-22 14:36:21,742 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4795 Valid, 17108 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-22 14:36:21,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36670 states. [2021-11-22 14:36:23,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36670 to 36650. [2021-11-22 14:36:23,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36650 states, 36504 states have (on average 1.236165899627438) internal successors, (45125), 36506 states have internal predecessors, (45125), 105 states have call successors, (105), 38 states have call predecessors, (105), 38 states have return successors, (105), 105 states have call predecessors, (105), 105 states have call successors, (105) [2021-11-22 14:36:23,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36650 states to 36650 states and 45335 transitions. [2021-11-22 14:36:23,228 INFO L78 Accepts]: Start accepts. Automaton has 36650 states and 45335 transitions. Word has length 219 [2021-11-22 14:36:23,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:36:23,229 INFO L470 AbstractCegarLoop]: Abstraction has 36650 states and 45335 transitions. [2021-11-22 14:36:23,229 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:36:23,229 INFO L276 IsEmpty]: Start isEmpty. Operand 36650 states and 45335 transitions. [2021-11-22 14:36:23,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2021-11-22 14:36:23,243 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:36:23,244 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:36:23,244 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-22 14:36:23,244 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION === [video_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 14:36:23,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:36:23,245 INFO L85 PathProgramCache]: Analyzing trace with hash -576800897, now seen corresponding path program 1 times [2021-11-22 14:36:23,247 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:36:23,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788497959] [2021-11-22 14:36:23,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:36:23,250 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:36:23,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:36:23,733 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:36:23,735 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:36:23,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788497959] [2021-11-22 14:36:23,736 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788497959] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:36:23,736 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:36:23,736 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 14:36:23,736 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790032082] [2021-11-22 14:36:23,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:36:23,737 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 14:36:23,737 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:36:23,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 14:36:23,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 14:36:23,738 INFO L87 Difference]: Start difference. First operand 36650 states and 45335 transitions. Second operand has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:36:26,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:36:26,176 INFO L93 Difference]: Finished difference Result 106700 states and 132233 transitions. [2021-11-22 14:36:26,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 14:36:26,177 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 230 [2021-11-22 14:36:26,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:36:26,493 INFO L225 Difference]: With dead ends: 106700 [2021-11-22 14:36:26,494 INFO L226 Difference]: Without dead ends: 71351 [2021-11-22 14:36:26,576 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 14:36:26,577 INFO L933 BasicCegarLoop]: 10454 mSDtfsCounter, 5661 mSDsluCounter, 6158 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5661 SdHoareTripleChecker+Valid, 16612 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-22 14:36:26,578 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5661 Valid, 16612 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-22 14:36:26,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71351 states. [2021-11-22 14:36:28,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71351 to 71345. [2021-11-22 14:36:28,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71345 states, 71056 states have (on average 1.237460594460707) internal successors, (87929), 71058 states have internal predecessors, (87929), 210 states have call successors, (210), 76 states have call predecessors, (210), 76 states have return successors, (210), 210 states have call predecessors, (210), 210 states have call successors, (210) [2021-11-22 14:36:28,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71345 states to 71345 states and 88349 transitions. [2021-11-22 14:36:28,857 INFO L78 Accepts]: Start accepts. Automaton has 71345 states and 88349 transitions. Word has length 230 [2021-11-22 14:36:28,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:36:28,858 INFO L470 AbstractCegarLoop]: Abstraction has 71345 states and 88349 transitions. [2021-11-22 14:36:28,858 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:36:28,859 INFO L276 IsEmpty]: Start isEmpty. Operand 71345 states and 88349 transitions. [2021-11-22 14:36:28,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2021-11-22 14:36:28,876 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:36:28,877 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:36:28,878 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-22 14:36:28,878 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION === [video_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 14:36:28,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:36:28,879 INFO L85 PathProgramCache]: Analyzing trace with hash 1351471805, now seen corresponding path program 1 times [2021-11-22 14:36:28,879 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:36:28,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752687737] [2021-11-22 14:36:28,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:36:28,880 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:36:29,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:36:29,423 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:36:29,424 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:36:29,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752687737] [2021-11-22 14:36:29,424 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752687737] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:36:29,424 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:36:29,425 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 14:36:29,425 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909553434] [2021-11-22 14:36:29,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:36:29,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 14:36:29,426 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:36:29,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 14:36:29,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 14:36:29,427 INFO L87 Difference]: Start difference. First operand 71345 states and 88349 transitions. Second operand has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:36:32,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:36:32,865 INFO L93 Difference]: Finished difference Result 176102 states and 218273 transitions. [2021-11-22 14:36:32,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 14:36:32,866 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 230 [2021-11-22 14:36:32,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:36:33,334 INFO L225 Difference]: With dead ends: 176102 [2021-11-22 14:36:33,334 INFO L226 Difference]: Without dead ends: 105000 [2021-11-22 14:36:33,509 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 14:36:33,512 INFO L933 BasicCegarLoop]: 11853 mSDtfsCounter, 5657 mSDsluCounter, 6162 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5657 SdHoareTripleChecker+Valid, 18015 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-22 14:36:33,512 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5657 Valid, 18015 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-22 14:36:33,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105000 states. [2021-11-22 14:36:35,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105000 to 104994. [2021-11-22 14:36:36,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104994 states, 104562 states have (on average 1.238317935770165) internal successors, (129481), 104564 states have internal predecessors, (129481), 315 states have call successors, (315), 114 states have call predecessors, (315), 114 states have return successors, (315), 315 states have call predecessors, (315), 315 states have call successors, (315) [2021-11-22 14:36:36,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104994 states to 104994 states and 130111 transitions. [2021-11-22 14:36:36,303 INFO L78 Accepts]: Start accepts. Automaton has 104994 states and 130111 transitions. Word has length 230 [2021-11-22 14:36:36,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:36:36,304 INFO L470 AbstractCegarLoop]: Abstraction has 104994 states and 130111 transitions. [2021-11-22 14:36:36,304 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:36:36,304 INFO L276 IsEmpty]: Start isEmpty. Operand 104994 states and 130111 transitions. [2021-11-22 14:36:36,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2021-11-22 14:36:36,326 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:36:36,327 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:36:36,327 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-22 14:36:36,327 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION === [video_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 14:36:36,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:36:36,328 INFO L85 PathProgramCache]: Analyzing trace with hash 23983700, now seen corresponding path program 1 times [2021-11-22 14:36:36,328 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:36:36,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986361882] [2021-11-22 14:36:36,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:36:36,329 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:36:36,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:36:37,144 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-22 14:36:37,145 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:36:37,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986361882] [2021-11-22 14:36:37,145 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986361882] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:36:37,145 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:36:37,145 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 14:36:37,146 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478825937] [2021-11-22 14:36:37,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:36:37,146 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 14:36:37,147 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:36:37,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 14:36:37,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 14:36:37,148 INFO L87 Difference]: Start difference. First operand 104994 states and 130111 transitions. Second operand has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:36:40,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:36:40,493 INFO L93 Difference]: Finished difference Result 243304 states and 301617 transitions. [2021-11-22 14:36:40,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 14:36:40,493 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 249 [2021-11-22 14:36:40,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:36:41,026 INFO L225 Difference]: With dead ends: 243304 [2021-11-22 14:36:41,026 INFO L226 Difference]: Without dead ends: 138649 [2021-11-22 14:36:41,230 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 14:36:41,231 INFO L933 BasicCegarLoop]: 11853 mSDtfsCounter, 5655 mSDsluCounter, 6162 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5655 SdHoareTripleChecker+Valid, 18015 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-22 14:36:41,231 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5655 Valid, 18015 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-22 14:36:41,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138649 states. [2021-11-22 14:36:44,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138649 to 104994. [2021-11-22 14:36:44,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104994 states, 104562 states have (on average 1.238308372066334) internal successors, (129480), 104564 states have internal predecessors, (129480), 315 states have call successors, (315), 114 states have call predecessors, (315), 114 states have return successors, (315), 315 states have call predecessors, (315), 315 states have call successors, (315) [2021-11-22 14:36:44,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104994 states to 104994 states and 130110 transitions. [2021-11-22 14:36:44,596 INFO L78 Accepts]: Start accepts. Automaton has 104994 states and 130110 transitions. Word has length 249 [2021-11-22 14:36:44,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:36:44,597 INFO L470 AbstractCegarLoop]: Abstraction has 104994 states and 130110 transitions. [2021-11-22 14:36:44,597 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:36:44,598 INFO L276 IsEmpty]: Start isEmpty. Operand 104994 states and 130110 transitions. [2021-11-22 14:36:44,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2021-11-22 14:36:44,617 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:36:44,618 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:36:44,618 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-22 14:36:44,618 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION === [video_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 14:36:44,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:36:44,619 INFO L85 PathProgramCache]: Analyzing trace with hash 1952256402, now seen corresponding path program 1 times [2021-11-22 14:36:44,619 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:36:44,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111524710] [2021-11-22 14:36:44,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:36:44,619 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:36:44,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:36:45,685 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 8 proven. 17 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-22 14:36:45,685 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:36:45,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111524710] [2021-11-22 14:36:45,686 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111524710] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 14:36:45,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1117697153] [2021-11-22 14:36:45,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:36:45,686 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 14:36:45,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154f7a76-7ecc-4a7f-b6cf-f3675c72ca56/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 14:36:45,691 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154f7a76-7ecc-4a7f-b6cf-f3675c72ca56/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 14:36:45,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_154f7a76-7ecc-4a7f-b6cf-f3675c72ca56/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-22 14:36:47,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:36:47,980 INFO L263 TraceCheckSpWp]: Trace formula consists of 8350 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-22 14:36:48,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 14:36:48,654 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2021-11-22 14:36:48,654 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-22 14:36:48,654 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1117697153] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:36:48,655 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-22 14:36:48,655 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2021-11-22 14:36:48,655 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577831999] [2021-11-22 14:36:48,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:36:48,656 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 14:36:48,656 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:36:48,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 14:36:48,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-22 14:36:48,657 INFO L87 Difference]: Start difference. First operand 104994 states and 130110 transitions. Second operand has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 2 states have internal predecessors, (221), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)