./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-pci-cx88-cx8800.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 173e3943 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-pci-cx88-cx8800.cil.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 4dc730f52c640d2c8e3cb7b93e5d1f8c1973029db6cd19ab3f75108e9e7f0634 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-173e394 [2021-11-06 18:27:54,194 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-06 18:27:54,196 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-06 18:27:54,252 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-06 18:27:54,252 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-06 18:27:54,255 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-06 18:27:54,256 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-06 18:27:54,258 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-06 18:27:54,259 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-06 18:27:54,262 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-06 18:27:54,262 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-06 18:27:54,263 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-06 18:27:54,264 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-06 18:27:54,265 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-06 18:27:54,266 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-06 18:27:54,271 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-06 18:27:54,272 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-06 18:27:54,272 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-06 18:27:54,274 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-06 18:27:54,277 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-06 18:27:54,278 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-06 18:27:54,279 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-06 18:27:54,281 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-06 18:27:54,281 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-06 18:27:54,284 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-06 18:27:54,285 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-06 18:27:54,285 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-06 18:27:54,285 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-06 18:27:54,285 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-06 18:27:54,286 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-06 18:27:54,286 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-06 18:27:54,287 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-06 18:27:54,288 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-06 18:27:54,289 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-06 18:27:54,290 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-06 18:27:54,290 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-06 18:27:54,290 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-06 18:27:54,290 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-06 18:27:54,290 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-06 18:27:54,291 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-06 18:27:54,291 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-06 18:27:54,293 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-06 18:27:54,317 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-06 18:27:54,318 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-06 18:27:54,318 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-06 18:27:54,318 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-06 18:27:54,319 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-06 18:27:54,320 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-06 18:27:54,320 INFO L138 SettingsManager]: * Use SBE=true [2021-11-06 18:27:54,320 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-06 18:27:54,320 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-06 18:27:54,320 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-06 18:27:54,321 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-06 18:27:54,321 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-06 18:27:54,321 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-06 18:27:54,321 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-06 18:27:54,321 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-06 18:27:54,321 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-06 18:27:54,322 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-06 18:27:54,322 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-06 18:27:54,322 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-06 18:27:54,322 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 18:27:54,322 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-06 18:27:54,322 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-06 18:27:54,322 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-06 18:27:54,323 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-06 18:27:54,323 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-06 18:27:54,323 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-06 18:27:54,323 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-06 18:27:54,324 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-06 18:27:54,324 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-06 18:27:54,324 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4dc730f52c640d2c8e3cb7b93e5d1f8c1973029db6cd19ab3f75108e9e7f0634 [2021-11-06 18:27:54,537 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-06 18:27:54,553 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-06 18:27:54,555 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-06 18:27:54,556 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-06 18:27:54,557 INFO L275 PluginConnector]: CDTParser initialized [2021-11-06 18:27:54,558 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-pci-cx88-cx8800.cil.i [2021-11-06 18:27:54,603 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41ae4a556/104f0ca8d5214ba08c970912d75ae698/FLAG8c432df05 [2021-11-06 18:27:55,267 INFO L306 CDTParser]: Found 1 translation units. [2021-11-06 18:27:55,268 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-pci-cx88-cx8800.cil.i [2021-11-06 18:27:55,324 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41ae4a556/104f0ca8d5214ba08c970912d75ae698/FLAG8c432df05 [2021-11-06 18:27:55,353 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41ae4a556/104f0ca8d5214ba08c970912d75ae698 [2021-11-06 18:27:55,356 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-06 18:27:55,358 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-06 18:27:55,360 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-06 18:27:55,360 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-06 18:27:55,369 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-06 18:27:55,370 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 06:27:55" (1/1) ... [2021-11-06 18:27:55,371 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@406d745c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:27:55, skipping insertion in model container [2021-11-06 18:27:55,372 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 06:27:55" (1/1) ... [2021-11-06 18:27:55,376 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-06 18:27:55,517 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-06 18:27:58,459 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-pci-cx88-cx8800.cil.i[570903,570916] [2021-11-06 18:27:58,461 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-pci-cx88-cx8800.cil.i[571069,571082] [2021-11-06 18:27:58,461 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-pci-cx88-cx8800.cil.i[571233,571246] [2021-11-06 18:27:58,462 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-pci-cx88-cx8800.cil.i[571398,571411] [2021-11-06 18:27:58,480 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 18:27:58,546 INFO L203 MainTranslator]: Completed pre-run [2021-11-06 18:27:59,093 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-pci-cx88-cx8800.cil.i[570903,570916] [2021-11-06 18:27:59,094 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-pci-cx88-cx8800.cil.i[571069,571082] [2021-11-06 18:27:59,094 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-pci-cx88-cx8800.cil.i[571233,571246] [2021-11-06 18:27:59,095 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-pci-cx88-cx8800.cil.i[571398,571411] [2021-11-06 18:27:59,099 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 18:27:59,247 INFO L208 MainTranslator]: Completed translation [2021-11-06 18:27:59,247 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:27:59 WrapperNode [2021-11-06 18:27:59,247 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-06 18:27:59,248 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-06 18:27:59,248 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-06 18:27:59,248 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-06 18:27:59,253 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:27:59" (1/1) ... [2021-11-06 18:27:59,334 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:27:59" (1/1) ... [2021-11-06 18:27:59,946 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-06 18:27:59,947 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-06 18:27:59,947 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-06 18:27:59,947 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-06 18:27:59,953 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:27:59" (1/1) ... [2021-11-06 18:27:59,953 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:27:59" (1/1) ... [2021-11-06 18:28:00,154 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:27:59" (1/1) ... [2021-11-06 18:28:00,167 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:27:59" (1/1) ... [2021-11-06 18:28:00,525 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:27:59" (1/1) ... [2021-11-06 18:28:00,764 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:27:59" (1/1) ... [2021-11-06 18:28:00,818 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:27:59" (1/1) ... [2021-11-06 18:28:00,918 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-06 18:28:00,920 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-06 18:28:00,920 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-06 18:28:00,921 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-06 18:28:00,921 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:27:59" (1/1) ... [2021-11-06 18:28:00,926 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 18:28:00,934 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 18:28:00,944 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-06 18:28:00,949 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-06 18:28:00,975 INFO L130 BoogieDeclarations]: Found specification of procedure video_open [2021-11-06 18:28:00,975 INFO L138 BoogieDeclarations]: Found implementation of procedure video_open [2021-11-06 18:28:00,976 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-06 18:28:00,976 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_audio_thread [2021-11-06 18:28:00,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-06 18:28:00,976 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-06 18:28:00,976 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_set_freq [2021-11-06 18:28:00,976 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_set_freq [2021-11-06 18:28:00,976 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-06 18:28:00,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-06 18:28:00,977 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-06 18:28:00,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-06 18:28:00,977 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-06 18:28:00,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-06 18:28:00,977 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-06 18:28:00,977 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-06 18:28:00,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-06 18:28:00,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-06 18:28:00,977 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-06 18:28:00,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-06 18:28:00,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-06 18:28:31,880 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#4: ldv_switch_1_#res := 0; [2021-11-06 18:28:31,881 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-06 18:28:31,881 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2021-11-06 18:28:31,881 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#2: ldv_switch_2_#res := 0; [2021-11-06 18:28:31,881 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#3: ldv_switch_2_#res := 0; [2021-11-06 18:28:31,881 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#4: ldv_switch_2_#res := 0; [2021-11-06 18:28:31,881 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-06 18:28:31,881 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#3: ldv_switch_0_#res := 0; [2021-11-06 18:28:31,881 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-06 18:28:31,882 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0; [2021-11-06 18:28:31,882 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-06 18:28:31,882 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-06 18:28:33,287 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-06 18:28:33,287 INFO L299 CfgBuilder]: Removed 5473 assume(true) statements. [2021-11-06 18:28:33,292 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 06:28:33 BoogieIcfgContainer [2021-11-06 18:28:33,292 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-06 18:28:33,294 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-06 18:28:33,294 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-06 18:28:33,296 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-06 18:28:33,296 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 06:27:55" (1/3) ... [2021-11-06 18:28:33,297 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e42dafb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 06:28:33, skipping insertion in model container [2021-11-06 18:28:33,297 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:27:59" (2/3) ... [2021-11-06 18:28:33,297 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e42dafb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 06:28:33, skipping insertion in model container [2021-11-06 18:28:33,297 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 06:28:33" (3/3) ... [2021-11-06 18:28:33,298 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-pci-cx88-cx8800.cil.i [2021-11-06 18:28:33,302 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-06 18:28:33,302 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 86 error locations. [2021-11-06 18:28:33,350 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-06 18:28:33,354 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 [2021-11-06 18:28:33,354 INFO L340 AbstractCegarLoop]: Starting to check reachability of 86 error locations. [2021-11-06 18:28:33,408 INFO L276 IsEmpty]: Start isEmpty. Operand has 5559 states, 5454 states have (on average 1.3221488815548221) internal successors, (7211), 5539 states have internal predecessors, (7211), 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) [2021-11-06 18:28:33,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2021-11-06 18:28:33,423 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:28:33,424 INFO L513 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] [2021-11-06 18:28:33,425 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [video_openErr0ASSERT_VIOLATIONERROR_FUNCTION, video_openErr1ASSERT_VIOLATIONERROR_FUNCTION, cx88_set_freqErr0ASSERT_VIOLATIONERROR_FUNCTION (and 83 more)] === [2021-11-06 18:28:33,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:28:33,429 INFO L85 PathProgramCache]: Analyzing trace with hash 985546936, now seen corresponding path program 1 times [2021-11-06 18:28:33,435 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:28:33,435 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617211123] [2021-11-06 18:28:33,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:28:33,437 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:28:33,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:28:34,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 18:28:34,376 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:28:34,377 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617211123] [2021-11-06 18:28:34,377 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617211123] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:28:34,377 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:28:34,377 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:28:34,379 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784739855] [2021-11-06 18:28:34,385 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:28:34,385 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:28:34,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:28:34,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:28:34,406 INFO L87 Difference]: Start difference. First operand has 5559 states, 5454 states have (on average 1.3221488815548221) internal successors, (7211), 5539 states have internal predecessors, (7211), 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 55.0) internal successors, (165), 3 states have internal predecessors, (165), 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) [2021-11-06 18:28:37,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:28:37,052 INFO L93 Difference]: Finished difference Result 15525 states and 20269 transitions. [2021-11-06 18:28:37,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:28:37,054 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 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 165 [2021-11-06 18:28:37,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:28:37,105 INFO L225 Difference]: With dead ends: 15525 [2021-11-06 18:28:37,105 INFO L226 Difference]: Without dead ends: 9684 [2021-11-06 18:28:37,136 INFO L786 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 [2021-11-06 18:28:37,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9684 states. [2021-11-06 18:28:37,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9684 to 9548. [2021-11-06 18:28:37,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9548 states, 9424 states have (on average 1.2457555178268251) internal successors, (11740), 9509 states have internal predecessors, (11740), 30 states have call successors, (30), 8 states have call predecessors, (30), 8 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2021-11-06 18:28:37,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9548 states to 9548 states and 11800 transitions. [2021-11-06 18:28:37,422 INFO L78 Accepts]: Start accepts. Automaton has 9548 states and 11800 transitions. Word has length 165 [2021-11-06 18:28:37,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:28:37,424 INFO L470 AbstractCegarLoop]: Abstraction has 9548 states and 11800 transitions. [2021-11-06 18:28:37,425 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 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) [2021-11-06 18:28:37,425 INFO L276 IsEmpty]: Start isEmpty. Operand 9548 states and 11800 transitions. [2021-11-06 18:28:37,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2021-11-06 18:28:37,432 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:28:37,432 INFO L513 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] [2021-11-06 18:28:37,433 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-06 18:28:37,433 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [video_openErr0ASSERT_VIOLATIONERROR_FUNCTION, video_openErr1ASSERT_VIOLATIONERROR_FUNCTION, cx88_set_freqErr0ASSERT_VIOLATIONERROR_FUNCTION (and 83 more)] === [2021-11-06 18:28:37,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:28:37,435 INFO L85 PathProgramCache]: Analyzing trace with hash -798996370, now seen corresponding path program 1 times [2021-11-06 18:28:37,436 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:28:37,436 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858198898] [2021-11-06 18:28:37,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:28:37,436 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:28:37,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:28:37,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 18:28:37,899 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:28:37,899 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858198898] [2021-11-06 18:28:37,900 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858198898] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:28:37,900 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:28:37,900 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:28:37,900 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535633705] [2021-11-06 18:28:37,902 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:28:37,902 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:28:37,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:28:37,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:28:37,904 INFO L87 Difference]: Start difference. First operand 9548 states and 11800 transitions. Second operand has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 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) [2021-11-06 18:28:40,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:28:40,628 INFO L93 Difference]: Finished difference Result 21490 states and 26522 transitions. [2021-11-06 18:28:40,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:28:40,628 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 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 173 [2021-11-06 18:28:40,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:28:40,674 INFO L225 Difference]: With dead ends: 21490 [2021-11-06 18:28:40,674 INFO L226 Difference]: Without dead ends: 12338 [2021-11-06 18:28:40,699 INFO L786 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 [2021-11-06 18:28:40,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12338 states. [2021-11-06 18:28:40,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12338 to 12148. [2021-11-06 18:28:40,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12148 states, 12015 states have (on average 1.2432792342904702) internal successors, (14938), 12100 states have internal predecessors, (14938), 35 states have call successors, (35), 12 states have call predecessors, (35), 12 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2021-11-06 18:28:40,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12148 states to 12148 states and 15008 transitions. [2021-11-06 18:28:40,972 INFO L78 Accepts]: Start accepts. Automaton has 12148 states and 15008 transitions. Word has length 173 [2021-11-06 18:28:40,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:28:40,973 INFO L470 AbstractCegarLoop]: Abstraction has 12148 states and 15008 transitions. [2021-11-06 18:28:40,974 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 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) [2021-11-06 18:28:40,974 INFO L276 IsEmpty]: Start isEmpty. Operand 12148 states and 15008 transitions. [2021-11-06 18:28:40,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2021-11-06 18:28:40,976 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:28:40,977 INFO L513 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] [2021-11-06 18:28:40,977 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-06 18:28:40,983 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION === [video_openErr0ASSERT_VIOLATIONERROR_FUNCTION, video_openErr1ASSERT_VIOLATIONERROR_FUNCTION, cx88_set_freqErr0ASSERT_VIOLATIONERROR_FUNCTION (and 83 more)] === [2021-11-06 18:28:40,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:28:40,984 INFO L85 PathProgramCache]: Analyzing trace with hash -451319765, now seen corresponding path program 1 times [2021-11-06 18:28:40,984 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:28:40,984 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962782516] [2021-11-06 18:28:40,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:28:40,984 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:28:41,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:28:41,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 18:28:41,328 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:28:41,328 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962782516] [2021-11-06 18:28:41,328 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962782516] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:28:41,328 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:28:41,328 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:28:41,329 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030132276] [2021-11-06 18:28:41,329 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:28:41,329 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:28:41,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:28:41,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:28:41,331 INFO L87 Difference]: Start difference. First operand 12148 states and 15008 transitions. Second operand has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 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) [2021-11-06 18:28:44,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:28:44,057 INFO L93 Difference]: Finished difference Result 28071 states and 34642 transitions. [2021-11-06 18:28:44,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:28:44,057 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 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 174 [2021-11-06 18:28:44,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:28:44,117 INFO L225 Difference]: With dead ends: 28071 [2021-11-06 18:28:44,117 INFO L226 Difference]: Without dead ends: 16319 [2021-11-06 18:28:44,148 INFO L786 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 [2021-11-06 18:28:44,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16319 states. [2021-11-06 18:28:44,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16319 to 16141. [2021-11-06 18:28:44,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16141 states, 15997 states have (on average 1.2397949615552917) internal successors, (19833), 16082 states have internal predecessors, (19833), 42 states have call successors, (42), 16 states have call predecessors, (42), 16 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2021-11-06 18:28:44,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16141 states to 16141 states and 19917 transitions. [2021-11-06 18:28:44,478 INFO L78 Accepts]: Start accepts. Automaton has 16141 states and 19917 transitions. Word has length 174 [2021-11-06 18:28:44,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:28:44,478 INFO L470 AbstractCegarLoop]: Abstraction has 16141 states and 19917 transitions. [2021-11-06 18:28:44,478 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 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) [2021-11-06 18:28:44,479 INFO L276 IsEmpty]: Start isEmpty. Operand 16141 states and 19917 transitions. [2021-11-06 18:28:44,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2021-11-06 18:28:44,481 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:28:44,482 INFO L513 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] [2021-11-06 18:28:44,482 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-06 18:28:44,482 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ##fun~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION === [video_openErr0ASSERT_VIOLATIONERROR_FUNCTION, video_openErr1ASSERT_VIOLATIONERROR_FUNCTION, cx88_set_freqErr0ASSERT_VIOLATIONERROR_FUNCTION (and 83 more)] === [2021-11-06 18:28:44,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:28:44,483 INFO L85 PathProgramCache]: Analyzing trace with hash 7874446, now seen corresponding path program 1 times [2021-11-06 18:28:44,483 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:28:44,483 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984039377] [2021-11-06 18:28:44,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:28:44,483 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:28:44,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:28:44,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 18:28:44,816 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:28:44,819 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984039377] [2021-11-06 18:28:44,819 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984039377] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:28:44,820 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:28:44,820 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:28:44,820 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593097291] [2021-11-06 18:28:44,820 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:28:44,820 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:28:44,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:28:44,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:28:44,821 INFO L87 Difference]: Start difference. First operand 16141 states and 19917 transitions. Second operand has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 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) [2021-11-06 18:28:47,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:28:47,560 INFO L93 Difference]: Finished difference Result 41042 states and 50939 transitions. [2021-11-06 18:28:47,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:28:47,561 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 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 179 [2021-11-06 18:28:47,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:28:47,622 INFO L225 Difference]: With dead ends: 41042 [2021-11-06 18:28:47,622 INFO L226 Difference]: Without dead ends: 25297 [2021-11-06 18:28:47,659 INFO L786 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 [2021-11-06 18:28:47,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25297 states. [2021-11-06 18:28:48,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25297 to 25113. [2021-11-06 18:28:48,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25113 states, 24929 states have (on average 1.2485458702715713) internal successors, (31125), 25014 states have internal predecessors, (31125), 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) [2021-11-06 18:28:48,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25113 states to 25113 states and 31269 transitions. [2021-11-06 18:28:48,132 INFO L78 Accepts]: Start accepts. Automaton has 25113 states and 31269 transitions. Word has length 179 [2021-11-06 18:28:48,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:28:48,132 INFO L470 AbstractCegarLoop]: Abstraction has 25113 states and 31269 transitions. [2021-11-06 18:28:48,132 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 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) [2021-11-06 18:28:48,132 INFO L276 IsEmpty]: Start isEmpty. Operand 25113 states and 31269 transitions. [2021-11-06 18:28:48,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2021-11-06 18:28:48,136 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:28:48,136 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 18:28:48,136 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-06 18:28:48,137 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [video_openErr0ASSERT_VIOLATIONERROR_FUNCTION, video_openErr1ASSERT_VIOLATIONERROR_FUNCTION, cx88_set_freqErr0ASSERT_VIOLATIONERROR_FUNCTION (and 83 more)] === [2021-11-06 18:28:48,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:28:48,138 INFO L85 PathProgramCache]: Analyzing trace with hash 577209910, now seen corresponding path program 1 times [2021-11-06 18:28:48,138 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:28:48,138 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248718311] [2021-11-06 18:28:48,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:28:48,139 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:28:48,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:28:48,479 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 18:28:48,479 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:28:48,479 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248718311] [2021-11-06 18:28:48,479 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248718311] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:28:48,479 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:28:48,480 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:28:48,480 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650723334] [2021-11-06 18:28:48,480 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:28:48,480 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:28:48,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:28:48,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:28:48,481 INFO L87 Difference]: Start difference. First operand 25113 states and 31269 transitions. Second operand has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 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) [2021-11-06 18:28:51,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:28:51,420 INFO L93 Difference]: Finished difference Result 72477 states and 90434 transitions. [2021-11-06 18:28:51,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:28:51,422 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), 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 198 [2021-11-06 18:28:51,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:28:51,557 INFO L225 Difference]: With dead ends: 72477 [2021-11-06 18:28:51,557 INFO L226 Difference]: Without dead ends: 48552 [2021-11-06 18:28:51,617 INFO L786 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 [2021-11-06 18:28:51,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48552 states. [2021-11-06 18:28:52,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48552 to 48416. [2021-11-06 18:28:52,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48416 states, 48134 states have (on average 1.249885735654631) internal successors, (60162), 48219 states have internal predecessors, (60162), 144 states have call successors, (144), 52 states have call predecessors, (144), 52 states have return successors, (144), 144 states have call predecessors, (144), 144 states have call successors, (144) [2021-11-06 18:28:52,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48416 states to 48416 states and 60450 transitions. [2021-11-06 18:28:52,669 INFO L78 Accepts]: Start accepts. Automaton has 48416 states and 60450 transitions. Word has length 198 [2021-11-06 18:28:52,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:28:52,674 INFO L470 AbstractCegarLoop]: Abstraction has 48416 states and 60450 transitions. [2021-11-06 18:28:52,674 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), 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) [2021-11-06 18:28:52,674 INFO L276 IsEmpty]: Start isEmpty. Operand 48416 states and 60450 transitions. [2021-11-06 18:28:52,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2021-11-06 18:28:52,680 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:28:52,680 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 18:28:52,681 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-06 18:28:52,681 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [video_openErr0ASSERT_VIOLATIONERROR_FUNCTION, video_openErr1ASSERT_VIOLATIONERROR_FUNCTION, cx88_set_freqErr0ASSERT_VIOLATIONERROR_FUNCTION (and 83 more)] === [2021-11-06 18:28:52,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:28:52,681 INFO L85 PathProgramCache]: Analyzing trace with hash -702653768, now seen corresponding path program 1 times [2021-11-06 18:28:52,681 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:28:52,682 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504950612] [2021-11-06 18:28:52,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:28:52,682 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:28:52,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:28:52,989 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 18:28:52,990 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:28:52,990 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504950612] [2021-11-06 18:28:52,990 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504950612] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:28:52,990 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:28:52,990 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:28:52,990 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520768394] [2021-11-06 18:28:52,991 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:28:52,991 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:28:52,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:28:52,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:28:52,992 INFO L87 Difference]: Start difference. First operand 48416 states and 60450 transitions. Second operand has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 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) [2021-11-06 18:28:56,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:28:56,335 INFO L93 Difference]: Finished difference Result 119091 states and 148812 transitions. [2021-11-06 18:28:56,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:28:56,336 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), 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 198 [2021-11-06 18:28:56,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:28:56,516 INFO L225 Difference]: With dead ends: 119091 [2021-11-06 18:28:56,517 INFO L226 Difference]: Without dead ends: 71863 [2021-11-06 18:28:56,625 INFO L786 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 [2021-11-06 18:28:56,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71863 states. [2021-11-06 18:28:58,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71863 to 71650. [2021-11-06 18:28:58,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71650 states, 71270 states have (on average 1.2505963238389224) internal successors, (89130), 71355 states have internal predecessors, (89130), 216 states have call successors, (216), 78 states have call predecessors, (216), 78 states have return successors, (216), 216 states have call predecessors, (216), 216 states have call successors, (216) [2021-11-06 18:28:58,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71650 states to 71650 states and 89562 transitions. [2021-11-06 18:28:58,318 INFO L78 Accepts]: Start accepts. Automaton has 71650 states and 89562 transitions. Word has length 198 [2021-11-06 18:28:58,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:28:58,319 INFO L470 AbstractCegarLoop]: Abstraction has 71650 states and 89562 transitions. [2021-11-06 18:28:58,320 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), 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) [2021-11-06 18:28:58,320 INFO L276 IsEmpty]: Start isEmpty. Operand 71650 states and 89562 transitions. [2021-11-06 18:28:58,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2021-11-06 18:28:58,325 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:28:58,326 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 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] [2021-11-06 18:28:58,326 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-06 18:28:58,326 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [video_openErr0ASSERT_VIOLATIONERROR_FUNCTION, video_openErr1ASSERT_VIOLATIONERROR_FUNCTION, cx88_set_freqErr0ASSERT_VIOLATIONERROR_FUNCTION (and 83 more)] === [2021-11-06 18:28:58,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:28:58,327 INFO L85 PathProgramCache]: Analyzing trace with hash -1862559787, now seen corresponding path program 1 times [2021-11-06 18:28:58,327 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:28:58,327 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697100942] [2021-11-06 18:28:58,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:28:58,327 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:28:58,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:28:58,985 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-06 18:28:58,985 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:28:58,985 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697100942] [2021-11-06 18:28:58,985 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697100942] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:28:58,985 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:28:58,986 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-06 18:28:58,986 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491454631] [2021-11-06 18:28:58,986 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 18:28:58,986 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:28:58,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 18:28:58,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 18:28:58,987 INFO L87 Difference]: Start difference. First operand 71650 states and 89562 transitions. Second operand has 4 states, 4 states have (on average 47.5) internal successors, (190), 4 states have internal predecessors, (190), 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) [2021-11-06 18:29:00,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:29:00,215 INFO L93 Difference]: Finished difference Result 71650 states and 89562 transitions. [2021-11-06 18:29:00,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 18:29:00,215 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.5) internal successors, (190), 4 states have internal predecessors, (190), 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 203 [2021-11-06 18:29:00,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:29:00,379 INFO L225 Difference]: With dead ends: 71650 [2021-11-06 18:29:00,379 INFO L226 Difference]: Without dead ends: 71644 [2021-11-06 18:29:00,420 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 18:29:00,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71644 states. [2021-11-06 18:29:01,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71644 to 71644. [2021-11-06 18:29:01,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71644 states, 71267 states have (on average 1.2505647775267656) internal successors, (89124), 71349 states have internal predecessors, (89124), 216 states have call successors, (216), 78 states have call predecessors, (216), 78 states have return successors, (216), 216 states have call predecessors, (216), 216 states have call successors, (216) [2021-11-06 18:29:01,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71644 states to 71644 states and 89556 transitions. [2021-11-06 18:29:01,805 INFO L78 Accepts]: Start accepts. Automaton has 71644 states and 89556 transitions. Word has length 203 [2021-11-06 18:29:01,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:29:01,807 INFO L470 AbstractCegarLoop]: Abstraction has 71644 states and 89556 transitions. [2021-11-06 18:29:01,807 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.5) internal successors, (190), 4 states have internal predecessors, (190), 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) [2021-11-06 18:29:01,807 INFO L276 IsEmpty]: Start isEmpty. Operand 71644 states and 89556 transitions. [2021-11-06 18:29:01,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2021-11-06 18:29:01,814 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:29:01,814 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 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] [2021-11-06 18:29:01,814 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-06 18:29:01,814 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [video_openErr0ASSERT_VIOLATIONERROR_FUNCTION, video_openErr1ASSERT_VIOLATIONERROR_FUNCTION, cx88_set_freqErr0ASSERT_VIOLATIONERROR_FUNCTION (and 83 more)] === [2021-11-06 18:29:01,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:29:01,815 INFO L85 PathProgramCache]: Analyzing trace with hash 1081603224, now seen corresponding path program 1 times [2021-11-06 18:29:01,815 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:29:01,815 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124844596] [2021-11-06 18:29:01,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:29:01,815 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:29:02,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:29:02,522 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-06 18:29:02,522 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:29:02,522 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124844596] [2021-11-06 18:29:02,522 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124844596] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:29:02,522 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:29:02,523 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-06 18:29:02,523 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721556696] [2021-11-06 18:29:02,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 18:29:02,523 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:29:02,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 18:29:02,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 18:29:02,524 INFO L87 Difference]: Start difference. First operand 71644 states and 89556 transitions. Second operand has 4 states, 4 states have (on average 48.0) internal successors, (192), 4 states have internal predecessors, (192), 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) [2021-11-06 18:29:03,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:29:03,690 INFO L93 Difference]: Finished difference Result 71644 states and 89556 transitions. [2021-11-06 18:29:03,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 18:29:03,691 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 48.0) internal successors, (192), 4 states have internal predecessors, (192), 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 205 [2021-11-06 18:29:03,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:29:03,817 INFO L225 Difference]: With dead ends: 71644 [2021-11-06 18:29:03,818 INFO L226 Difference]: Without dead ends: 71638 [2021-11-06 18:29:03,844 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 18:29:03,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71638 states. [2021-11-06 18:29:05,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71638 to 71638. [2021-11-06 18:29:05,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71638 states, 71264 states have (on average 1.250533228558599) internal successors, (89118), 71343 states have internal predecessors, (89118), 216 states have call successors, (216), 78 states have call predecessors, (216), 78 states have return successors, (216), 216 states have call predecessors, (216), 216 states have call successors, (216) [2021-11-06 18:29:05,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71638 states to 71638 states and 89550 transitions. [2021-11-06 18:29:05,433 INFO L78 Accepts]: Start accepts. Automaton has 71638 states and 89550 transitions. Word has length 205 [2021-11-06 18:29:05,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:29:05,433 INFO L470 AbstractCegarLoop]: Abstraction has 71638 states and 89550 transitions. [2021-11-06 18:29:05,433 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 48.0) internal successors, (192), 4 states have internal predecessors, (192), 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) [2021-11-06 18:29:05,433 INFO L276 IsEmpty]: Start isEmpty. Operand 71638 states and 89550 transitions. [2021-11-06 18:29:05,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2021-11-06 18:29:05,440 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:29:05,440 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 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] [2021-11-06 18:29:05,440 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-06 18:29:05,440 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [video_openErr0ASSERT_VIOLATIONERROR_FUNCTION, video_openErr1ASSERT_VIOLATIONERROR_FUNCTION, cx88_set_freqErr0ASSERT_VIOLATIONERROR_FUNCTION (and 83 more)] === [2021-11-06 18:29:05,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:29:05,441 INFO L85 PathProgramCache]: Analyzing trace with hash 38809051, now seen corresponding path program 1 times [2021-11-06 18:29:05,441 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:29:05,441 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576558911] [2021-11-06 18:29:05,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:29:05,441 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:29:05,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:29:06,140 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-06 18:29:06,141 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:29:06,141 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576558911] [2021-11-06 18:29:06,141 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576558911] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:29:06,141 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:29:06,142 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-06 18:29:06,142 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155514113] [2021-11-06 18:29:06,142 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 18:29:06,142 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:29:06,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 18:29:06,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 18:29:06,143 INFO L87 Difference]: Start difference. First operand 71638 states and 89550 transitions. Second operand has 4 states, 4 states have (on average 48.5) internal successors, (194), 4 states have internal predecessors, (194), 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) [2021-11-06 18:29:07,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:29:07,903 INFO L93 Difference]: Finished difference Result 84415 states and 105660 transitions. [2021-11-06 18:29:07,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 18:29:07,904 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 48.5) internal successors, (194), 4 states have internal predecessors, (194), 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 207 [2021-11-06 18:29:07,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:29:08,240 INFO L225 Difference]: With dead ends: 84415 [2021-11-06 18:29:08,240 INFO L226 Difference]: Without dead ends: 84409 [2021-11-06 18:29:08,269 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 18:29:08,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84409 states. [2021-11-06 18:29:09,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84409 to 82171. [2021-11-06 18:29:09,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82171 states, 81626 states have (on average 1.2512557273417784) internal successors, (102135), 81702 states have internal predecessors, (102135), 312 states have call successors, (312), 156 states have call predecessors, (312), 156 states have return successors, (408), 312 states have call predecessors, (408), 312 states have call successors, (408) [2021-11-06 18:29:10,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82171 states to 82171 states and 102855 transitions. [2021-11-06 18:29:10,037 INFO L78 Accepts]: Start accepts. Automaton has 82171 states and 102855 transitions. Word has length 207 [2021-11-06 18:29:10,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:29:10,038 INFO L470 AbstractCegarLoop]: Abstraction has 82171 states and 102855 transitions. [2021-11-06 18:29:10,038 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 48.5) internal successors, (194), 4 states have internal predecessors, (194), 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) [2021-11-06 18:29:10,038 INFO L276 IsEmpty]: Start isEmpty. Operand 82171 states and 102855 transitions. [2021-11-06 18:29:10,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2021-11-06 18:29:10,045 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:29:10,045 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 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] [2021-11-06 18:29:10,045 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-06 18:29:10,045 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [video_openErr0ASSERT_VIOLATIONERROR_FUNCTION, video_openErr1ASSERT_VIOLATIONERROR_FUNCTION, cx88_set_freqErr0ASSERT_VIOLATIONERROR_FUNCTION (and 83 more)] === [2021-11-06 18:29:10,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:29:10,046 INFO L85 PathProgramCache]: Analyzing trace with hash -1359010914, now seen corresponding path program 1 times [2021-11-06 18:29:10,046 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:29:10,046 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533620117] [2021-11-06 18:29:10,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:29:10,048 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:29:10,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:29:10,850 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-06 18:29:10,850 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:29:10,850 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533620117] [2021-11-06 18:29:10,850 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533620117] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:29:10,850 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:29:10,851 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-06 18:29:10,851 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556382222] [2021-11-06 18:29:10,851 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 18:29:10,851 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:29:10,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 18:29:10,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 18:29:10,852 INFO L87 Difference]: Start difference. First operand 82171 states and 102855 transitions. Second operand has 4 states, 4 states have (on average 49.0) internal successors, (196), 4 states have internal predecessors, (196), 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) [2021-11-06 18:29:12,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:29:12,365 INFO L93 Difference]: Finished difference Result 82171 states and 102855 transitions. [2021-11-06 18:29:12,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 18:29:12,365 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 49.0) internal successors, (196), 4 states have internal predecessors, (196), 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 209 [2021-11-06 18:29:12,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:29:12,551 INFO L225 Difference]: With dead ends: 82171 [2021-11-06 18:29:12,552 INFO L226 Difference]: Without dead ends: 82165 [2021-11-06 18:29:12,587 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 18:29:12,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82165 states. [2021-11-06 18:29:14,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82165 to 82165. [2021-11-06 18:29:14,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82165 states, 81623 states have (on average 1.2512282077355648) internal successors, (102129), 81696 states have internal predecessors, (102129), 312 states have call successors, (312), 156 states have call predecessors, (312), 156 states have return successors, (408), 312 states have call predecessors, (408), 312 states have call successors, (408) [2021-11-06 18:29:14,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82165 states to 82165 states and 102849 transitions. [2021-11-06 18:29:14,741 INFO L78 Accepts]: Start accepts. Automaton has 82165 states and 102849 transitions. Word has length 209 [2021-11-06 18:29:14,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:29:14,742 INFO L470 AbstractCegarLoop]: Abstraction has 82165 states and 102849 transitions. [2021-11-06 18:29:14,742 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.0) internal successors, (196), 4 states have internal predecessors, (196), 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) [2021-11-06 18:29:14,742 INFO L276 IsEmpty]: Start isEmpty. Operand 82165 states and 102849 transitions. [2021-11-06 18:29:14,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2021-11-06 18:29:14,748 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:29:14,749 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 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] [2021-11-06 18:29:14,750 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-06 18:29:14,750 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [video_openErr0ASSERT_VIOLATIONERROR_FUNCTION, video_openErr1ASSERT_VIOLATIONERROR_FUNCTION, cx88_set_freqErr0ASSERT_VIOLATIONERROR_FUNCTION (and 83 more)] === [2021-11-06 18:29:14,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:29:14,750 INFO L85 PathProgramCache]: Analyzing trace with hash -339233311, now seen corresponding path program 1 times [2021-11-06 18:29:14,751 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:29:14,751 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444488683] [2021-11-06 18:29:14,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:29:14,751 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:29:15,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:29:15,457 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-06 18:29:15,457 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:29:15,457 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444488683] [2021-11-06 18:29:15,457 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444488683] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:29:15,458 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:29:15,458 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-06 18:29:15,458 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082532358] [2021-11-06 18:29:15,458 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 18:29:15,458 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:29:15,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 18:29:15,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 18:29:15,459 INFO L87 Difference]: Start difference. First operand 82165 states and 102849 transitions. Second operand has 4 states, 4 states have (on average 49.5) internal successors, (198), 4 states have internal predecessors, (198), 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)