./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-pci-cx88-cx8800.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 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-alloc-spinlock_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 24e26672720ca570553d18d605e2ce47cd111ea61f1f4153430b6ee115172355 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-173e394 [2021-11-06 18:04:31,924 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-06 18:04:31,925 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-06 18:04:31,971 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-06 18:04:31,972 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-06 18:04:31,976 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-06 18:04:31,977 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-06 18:04:31,979 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-06 18:04:31,981 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-06 18:04:31,982 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-06 18:04:31,983 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-06 18:04:31,985 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-06 18:04:31,985 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-06 18:04:31,990 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-06 18:04:31,991 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-06 18:04:31,992 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-06 18:04:31,995 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-06 18:04:31,996 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-06 18:04:31,997 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-06 18:04:32,004 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-06 18:04:32,005 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-06 18:04:32,008 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-06 18:04:32,009 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-06 18:04:32,009 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-06 18:04:32,011 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-06 18:04:32,011 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-06 18:04:32,011 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-06 18:04:32,013 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-06 18:04:32,013 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-06 18:04:32,014 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-06 18:04:32,015 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-06 18:04:32,015 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-06 18:04:32,016 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-06 18:04:32,016 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-06 18:04:32,017 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-06 18:04:32,018 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-06 18:04:32,019 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-06 18:04:32,019 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-06 18:04:32,019 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-06 18:04:32,020 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-06 18:04:32,020 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-06 18:04:32,021 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-06 18:04:32,035 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-06 18:04:32,039 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-06 18:04:32,040 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-06 18:04:32,040 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-06 18:04:32,041 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-06 18:04:32,041 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-06 18:04:32,041 INFO L138 SettingsManager]: * Use SBE=true [2021-11-06 18:04:32,041 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-06 18:04:32,042 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-06 18:04:32,042 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-06 18:04:32,042 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-06 18:04:32,042 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-06 18:04:32,043 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-06 18:04:32,043 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-06 18:04:32,043 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-06 18:04:32,043 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-06 18:04:32,043 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-06 18:04:32,043 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-06 18:04:32,043 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-06 18:04:32,044 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 18:04:32,044 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-06 18:04:32,044 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-06 18:04:32,044 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-06 18:04:32,044 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-06 18:04:32,044 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-06 18:04:32,044 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-06 18:04:32,045 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-06 18:04:32,046 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-06 18:04:32,046 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-06 18:04:32,046 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 24e26672720ca570553d18d605e2ce47cd111ea61f1f4153430b6ee115172355 [2021-11-06 18:04:32,236 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-06 18:04:32,275 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-06 18:04:32,277 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-06 18:04:32,278 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-06 18:04:32,279 INFO L275 PluginConnector]: CDTParser initialized [2021-11-06 18:04:32,280 INFO L432 ainManager$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-alloc-spinlock_drivers-media-pci-cx88-cx8800.cil.i [2021-11-06 18:04:32,323 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d2d75778/dbc5289615314daab68dd87bbd000c9a/FLAG4517d3ee9 [2021-11-06 18:04:32,934 INFO L306 CDTParser]: Found 1 translation units. [2021-11-06 18:04:32,934 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-pci-cx88-cx8800.cil.i [2021-11-06 18:04:32,983 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d2d75778/dbc5289615314daab68dd87bbd000c9a/FLAG4517d3ee9 [2021-11-06 18:04:33,069 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d2d75778/dbc5289615314daab68dd87bbd000c9a [2021-11-06 18:04:33,072 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-06 18:04:33,075 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-06 18:04:33,078 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-06 18:04:33,078 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-06 18:04:33,081 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-06 18:04:33,082 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 06:04:33" (1/1) ... [2021-11-06 18:04:33,084 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a89550 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:04:33, skipping insertion in model container [2021-11-06 18:04:33,084 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 06:04:33" (1/1) ... [2021-11-06 18:04:33,090 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-06 18:04:33,219 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-06 18:04:35,764 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-alloc-spinlock_drivers-media-pci-cx88-cx8800.cil.i[588527,588540] [2021-11-06 18:04:35,768 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-alloc-spinlock_drivers-media-pci-cx88-cx8800.cil.i[588672,588685] [2021-11-06 18:04:35,791 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 18:04:35,905 INFO L203 MainTranslator]: Completed pre-run [2021-11-06 18:04:36,364 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-alloc-spinlock_drivers-media-pci-cx88-cx8800.cil.i[588527,588540] [2021-11-06 18:04:36,364 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-alloc-spinlock_drivers-media-pci-cx88-cx8800.cil.i[588672,588685] [2021-11-06 18:04:36,369 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 18:04:36,490 INFO L208 MainTranslator]: Completed translation [2021-11-06 18:04:36,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:04:36 WrapperNode [2021-11-06 18:04:36,492 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-06 18:04:36,493 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-06 18:04:36,493 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-06 18:04:36,493 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-06 18:04:36,498 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:04:36" (1/1) ... [2021-11-06 18:04:36,637 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:04:36" (1/1) ... [2021-11-06 18:04:37,106 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-06 18:04:37,107 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-06 18:04:37,107 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-06 18:04:37,107 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-06 18:04:37,114 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:04:36" (1/1) ... [2021-11-06 18:04:37,114 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:04:36" (1/1) ... [2021-11-06 18:04:37,242 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:04:36" (1/1) ... [2021-11-06 18:04:37,243 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:04:36" (1/1) ... [2021-11-06 18:04:37,728 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:04:36" (1/1) ... [2021-11-06 18:04:37,821 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:04:36" (1/1) ... [2021-11-06 18:04:37,887 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:04:36" (1/1) ... [2021-11-06 18:04:38,033 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-06 18:04:38,034 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-06 18:04:38,034 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-06 18:04:38,034 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-06 18:04:38,035 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:04:36" (1/1) ... [2021-11-06 18:04:38,040 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 18:04:38,047 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 18:04:38,065 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 18:04:38,089 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 18:04:38,101 INFO L130 BoogieDeclarations]: Found specification of procedure video_open [2021-11-06 18:04:38,103 INFO L138 BoogieDeclarations]: Found implementation of procedure video_open [2021-11-06 18:04:38,104 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-06 18:04:38,104 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_audio_thread [2021-11-06 18:04:38,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-06 18:04:38,104 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-06 18:04:38,104 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_set_freq [2021-11-06 18:04:38,104 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_set_freq [2021-11-06 18:04:38,104 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-06 18:04:38,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-06 18:04:38,105 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-06 18:04:38,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-06 18:04:38,105 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-06 18:04:38,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-06 18:04:38,105 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-06 18:04:38,105 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-06 18:04:38,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-06 18:04:38,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-06 18:04:38,105 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-06 18:04:38,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-06 18:04:38,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-06 18:05:17,428 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#4: ldv_switch_1_#res := 0; [2021-11-06 18:05:17,430 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-06 18:05:17,431 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2021-11-06 18:05:17,431 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#2: ldv_switch_2_#res := 0; [2021-11-06 18:05:17,431 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#3: ldv_switch_2_#res := 0; [2021-11-06 18:05:17,431 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#4: ldv_switch_2_#res := 0; [2021-11-06 18:05:17,432 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-06 18:05:17,432 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#3: ldv_switch_0_#res := 0; [2021-11-06 18:05:17,432 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-06 18:05:17,433 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0; [2021-11-06 18:05:17,433 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-06 18:05:17,434 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-06 18:05:18,998 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-06 18:05:18,998 INFO L299 CfgBuilder]: Removed 5383 assume(true) statements. [2021-11-06 18:05:19,003 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 06:05:19 BoogieIcfgContainer [2021-11-06 18:05:19,004 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-06 18:05:19,005 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-06 18:05:19,005 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-06 18:05:19,009 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-06 18:05:19,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 06:04:33" (1/3) ... [2021-11-06 18:05:19,009 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dc67623 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 06:05:19, skipping insertion in model container [2021-11-06 18:05:19,010 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:04:36" (2/3) ... [2021-11-06 18:05:19,010 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dc67623 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 06:05:19, skipping insertion in model container [2021-11-06 18:05:19,010 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 06:05:19" (3/3) ... [2021-11-06 18:05:19,011 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-pci-cx88-cx8800.cil.i [2021-11-06 18:05:19,018 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-06 18:05:19,018 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-06 18:05:19,066 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-06 18:05:19,070 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 18:05:19,070 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-06 18:05:19,132 INFO L276 IsEmpty]: Start isEmpty. Operand has 5385 states, 5363 states have (on average 1.3072906955062464) internal successors, (7011), 5365 states have internal predecessors, (7011), 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 18:05:19,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2021-11-06 18:05:19,154 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:05:19,155 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] [2021-11-06 18:05:19,155 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION === [video_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-06 18:05:19,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:05:19,159 INFO L85 PathProgramCache]: Analyzing trace with hash 658504876, now seen corresponding path program 1 times [2021-11-06 18:05:19,165 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:05:19,166 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55537563] [2021-11-06 18:05:19,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:05:19,167 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:05:19,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:05:20,121 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 18:05:20,122 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:05:20,122 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55537563] [2021-11-06 18:05:20,122 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55537563] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:05:20,122 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:05:20,123 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:05:20,124 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252321836] [2021-11-06 18:05:20,127 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:05:20,127 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:05:20,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:05:20,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:05:20,148 INFO L87 Difference]: Start difference. First operand has 5385 states, 5363 states have (on average 1.3072906955062464) internal successors, (7011), 5365 states have internal predecessors, (7011), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 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 18:05:22,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:05:22,948 INFO L93 Difference]: Finished difference Result 14189 states and 18569 transitions. [2021-11-06 18:05:22,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:05:22,950 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 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 176 [2021-11-06 18:05:22,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:05:22,990 INFO L225 Difference]: With dead ends: 14189 [2021-11-06 18:05:22,990 INFO L226 Difference]: Without dead ends: 8440 [2021-11-06 18:05:23,016 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 18:05:23,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8440 states. [2021-11-06 18:05:23,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8440 to 8426. [2021-11-06 18:05:23,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8426 states, 8390 states have (on average 1.2400476758045291) internal successors, (10404), 8392 states have internal predecessors, (10404), 25 states have call successors, (25), 8 states have call predecessors, (25), 8 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2021-11-06 18:05:23,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8426 states to 8426 states and 10454 transitions. [2021-11-06 18:05:23,257 INFO L78 Accepts]: Start accepts. Automaton has 8426 states and 10454 transitions. Word has length 176 [2021-11-06 18:05:23,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:05:23,258 INFO L470 AbstractCegarLoop]: Abstraction has 8426 states and 10454 transitions. [2021-11-06 18:05:23,258 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 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 18:05:23,258 INFO L276 IsEmpty]: Start isEmpty. Operand 8426 states and 10454 transitions. [2021-11-06 18:05:23,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2021-11-06 18:05:23,262 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:05:23,263 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 18:05:23,263 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-06 18:05:23,263 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [video_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-06 18:05:23,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:05:23,264 INFO L85 PathProgramCache]: Analyzing trace with hash 1394049775, now seen corresponding path program 1 times [2021-11-06 18:05:23,264 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:05:23,264 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022075611] [2021-11-06 18:05:23,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:05:23,264 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:05:23,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:05:23,712 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 18:05:23,713 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:05:23,713 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022075611] [2021-11-06 18:05:23,713 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022075611] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:05:23,714 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:05:23,714 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:05:23,714 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898367154] [2021-11-06 18:05:23,716 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:05:23,716 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:05:23,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:05:23,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:05:23,719 INFO L87 Difference]: Start difference. First operand 8426 states and 10454 transitions. Second operand has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 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 18:05:26,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:05:26,406 INFO L93 Difference]: Finished difference Result 23000 states and 28711 transitions. [2021-11-06 18:05:26,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:05:26,407 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 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 179 [2021-11-06 18:05:26,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:05:26,467 INFO L225 Difference]: With dead ends: 23000 [2021-11-06 18:05:26,467 INFO L226 Difference]: Without dead ends: 14970 [2021-11-06 18:05:26,493 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 18:05:26,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14970 states. [2021-11-06 18:05:26,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14970 to 14958. [2021-11-06 18:05:26,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14958 states, 14891 states have (on average 1.2466590558055202) internal successors, (18564), 14893 states have internal predecessors, (18564), 48 states have call successors, (48), 16 states have call predecessors, (48), 16 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2021-11-06 18:05:26,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14958 states to 14958 states and 18660 transitions. [2021-11-06 18:05:26,826 INFO L78 Accepts]: Start accepts. Automaton has 14958 states and 18660 transitions. Word has length 179 [2021-11-06 18:05:26,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:05:26,830 INFO L470 AbstractCegarLoop]: Abstraction has 14958 states and 18660 transitions. [2021-11-06 18:05:26,831 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 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 18:05:26,831 INFO L276 IsEmpty]: Start isEmpty. Operand 14958 states and 18660 transitions. [2021-11-06 18:05:26,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2021-11-06 18:05:26,838 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:05:26,838 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 18:05:26,838 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-06 18:05:26,839 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION === [video_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-06 18:05:26,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:05:26,840 INFO L85 PathProgramCache]: Analyzing trace with hash -878768903, now seen corresponding path program 1 times [2021-11-06 18:05:26,840 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:05:26,840 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821333154] [2021-11-06 18:05:26,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:05:26,840 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:05:27,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:05:27,217 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 18:05:27,217 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:05:27,218 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821333154] [2021-11-06 18:05:27,218 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821333154] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:05:27,218 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:05:27,218 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:05:27,218 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82715351] [2021-11-06 18:05:27,219 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:05:27,219 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:05:27,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:05:27,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:05:27,220 INFO L87 Difference]: Start difference. First operand 14958 states and 18660 transitions. Second operand has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 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 18:05:29,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:05:29,832 INFO L93 Difference]: Finished difference Result 32291 states and 40354 transitions. [2021-11-06 18:05:29,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:05:29,832 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 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 193 [2021-11-06 18:05:29,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:05:29,906 INFO L225 Difference]: With dead ends: 32291 [2021-11-06 18:05:29,907 INFO L226 Difference]: Without dead ends: 17729 [2021-11-06 18:05:29,950 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 18:05:29,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17729 states. [2021-11-06 18:05:30,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17729 to 17725. [2021-11-06 18:05:30,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17725 states, 17645 states have (on average 1.247662227259847) internal successors, (22015), 17647 states have internal predecessors, (22015), 57 states have call successors, (57), 20 states have call predecessors, (57), 20 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2021-11-06 18:05:30,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17725 states to 17725 states and 22129 transitions. [2021-11-06 18:05:30,352 INFO L78 Accepts]: Start accepts. Automaton has 17725 states and 22129 transitions. Word has length 193 [2021-11-06 18:05:30,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:05:30,352 INFO L470 AbstractCegarLoop]: Abstraction has 17725 states and 22129 transitions. [2021-11-06 18:05:30,353 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 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 18:05:30,353 INFO L276 IsEmpty]: Start isEmpty. Operand 17725 states and 22129 transitions. [2021-11-06 18:05:30,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2021-11-06 18:05:30,358 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:05:30,358 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 18:05:30,358 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-06 18:05:30,359 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting video_openErr0ASSERT_VIOLATIONERROR_FUNCTION === [video_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-06 18:05:30,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:05:30,360 INFO L85 PathProgramCache]: Analyzing trace with hash 2086883259, now seen corresponding path program 1 times [2021-11-06 18:05:30,360 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:05:30,360 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772963106] [2021-11-06 18:05:30,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:05:30,361 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:05:30,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:05:30,956 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 18:05:30,956 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:05:30,956 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772963106] [2021-11-06 18:05:30,958 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772963106] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:05:30,959 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:05:30,959 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:05:30,959 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267632543] [2021-11-06 18:05:30,960 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:05:30,960 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:05:30,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:05:30,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:05:30,961 INFO L87 Difference]: Start difference. First operand 17725 states and 22129 transitions. Second operand has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 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 18:05:33,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:05:33,717 INFO L93 Difference]: Finished difference Result 42356 states and 52874 transitions. [2021-11-06 18:05:33,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:05:33,717 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 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 198 [2021-11-06 18:05:33,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:05:33,793 INFO L225 Difference]: With dead ends: 42356 [2021-11-06 18:05:33,794 INFO L226 Difference]: Without dead ends: 25027 [2021-11-06 18:05:33,838 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 18:05:33,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25027 states. [2021-11-06 18:05:34,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25027 to 25009. [2021-11-06 18:05:34,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25009 states, 24908 states have (on average 1.2438172474706921) internal successors, (30981), 24910 states have internal predecessors, (30981), 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 18:05:34,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25009 states to 25009 states and 31125 transitions. [2021-11-06 18:05:34,340 INFO L78 Accepts]: Start accepts. Automaton has 25009 states and 31125 transitions. Word has length 198 [2021-11-06 18:05:34,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:05:34,341 INFO L470 AbstractCegarLoop]: Abstraction has 25009 states and 31125 transitions. [2021-11-06 18:05:34,341 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 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 18:05:34,341 INFO L276 IsEmpty]: Start isEmpty. Operand 25009 states and 31125 transitions. [2021-11-06 18:05:34,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2021-11-06 18:05:34,348 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:05:34,349 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 18:05:34,349 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-06 18:05:34,350 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [video_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-06 18:05:34,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:05:34,350 INFO L85 PathProgramCache]: Analyzing trace with hash -1241698348, now seen corresponding path program 1 times [2021-11-06 18:05:34,350 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:05:34,350 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655335125] [2021-11-06 18:05:34,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:05:34,351 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:05:34,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:05:34,783 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 18:05:34,783 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:05:34,783 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655335125] [2021-11-06 18:05:34,784 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655335125] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:05:34,784 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:05:34,784 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:05:34,784 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739208955] [2021-11-06 18:05:34,785 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:05:34,785 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:05:34,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:05:34,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:05:34,785 INFO L87 Difference]: Start difference. First operand 25009 states and 31125 transitions. Second operand has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 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 18:05:37,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:05:37,797 INFO L93 Difference]: Finished difference Result 58956 states and 73578 transitions. [2021-11-06 18:05:37,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:05:37,797 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 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 215 [2021-11-06 18:05:37,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:05:37,905 INFO L225 Difference]: With dead ends: 58956 [2021-11-06 18:05:37,905 INFO L226 Difference]: Without dead ends: 35179 [2021-11-06 18:05:37,972 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 18:05:38,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35179 states. [2021-11-06 18:05:38,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35179 to 35159. [2021-11-06 18:05:38,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35159 states, 35013 states have (on average 1.2462228315197212) internal successors, (43634), 35015 states have internal predecessors, (43634), 105 states have call successors, (105), 38 states have call predecessors, (105), 38 states have return successors, (105), 105 states have call predecessors, (105), 105 states have call successors, (105) [2021-11-06 18:05:38,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35159 states to 35159 states and 43844 transitions. [2021-11-06 18:05:38,650 INFO L78 Accepts]: Start accepts. Automaton has 35159 states and 43844 transitions. Word has length 215 [2021-11-06 18:05:38,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:05:38,650 INFO L470 AbstractCegarLoop]: Abstraction has 35159 states and 43844 transitions. [2021-11-06 18:05:38,650 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 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 18:05:38,651 INFO L276 IsEmpty]: Start isEmpty. Operand 35159 states and 43844 transitions. [2021-11-06 18:05:38,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2021-11-06 18:05:38,661 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:05:38,661 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 18:05:38,662 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-06 18:05:38,662 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION === [video_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-06 18:05:38,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:05:38,662 INFO L85 PathProgramCache]: Analyzing trace with hash 1337708022, now seen corresponding path program 1 times [2021-11-06 18:05:38,662 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:05:38,663 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203475713] [2021-11-06 18:05:38,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:05:38,663 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:05:38,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:05:39,269 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 18:05:39,270 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:05:39,271 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203475713] [2021-11-06 18:05:39,271 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203475713] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:05:39,271 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:05:39,271 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:05:39,271 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539852037] [2021-11-06 18:05:39,272 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:05:39,272 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:05:39,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:05:39,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:05:39,273 INFO L87 Difference]: Start difference. First operand 35159 states and 43844 transitions. Second operand has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 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 18:05:42,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:05:42,628 INFO L93 Difference]: Finished difference Result 102423 states and 127956 transitions. [2021-11-06 18:05:42,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:05:42,629 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 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 226 [2021-11-06 18:05:42,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:05:42,830 INFO L225 Difference]: With dead ends: 102423 [2021-11-06 18:05:42,830 INFO L226 Difference]: Without dead ends: 68496 [2021-11-06 18:05:42,935 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 18:05:43,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68496 states. [2021-11-06 18:05:44,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68496 to 68490. [2021-11-06 18:05:44,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68490 states, 68201 states have (on average 1.2474010645005205) internal successors, (85074), 68203 states have internal predecessors, (85074), 210 states have call successors, (210), 76 states have call predecessors, (210), 76 states have return successors, (210), 210 states have call predecessors, (210), 210 states have call successors, (210) [2021-11-06 18:05:44,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68490 states to 68490 states and 85494 transitions. [2021-11-06 18:05:44,814 INFO L78 Accepts]: Start accepts. Automaton has 68490 states and 85494 transitions. Word has length 226 [2021-11-06 18:05:44,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:05:44,815 INFO L470 AbstractCegarLoop]: Abstraction has 68490 states and 85494 transitions. [2021-11-06 18:05:44,816 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 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 18:05:44,816 INFO L276 IsEmpty]: Start isEmpty. Operand 68490 states and 85494 transitions. [2021-11-06 18:05:44,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2021-11-06 18:05:44,826 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:05:44,826 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 18:05:44,826 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-06 18:05:44,826 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION === [video_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-06 18:05:44,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:05:44,827 INFO L85 PathProgramCache]: Analyzing trace with hash 440314744, now seen corresponding path program 1 times [2021-11-06 18:05:44,827 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:05:44,827 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997582980] [2021-11-06 18:05:44,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:05:44,827 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:05:45,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:05:45,422 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 18:05:45,422 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:05:45,422 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997582980] [2021-11-06 18:05:45,422 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997582980] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:05:45,423 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:05:45,423 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:05:45,423 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313209702] [2021-11-06 18:05:45,423 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:05:45,423 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:05:45,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:05:45,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:05:45,424 INFO L87 Difference]: Start difference. First operand 68490 states and 85494 transitions. Second operand has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 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 18:05:49,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:05:49,700 INFO L93 Difference]: Finished difference Result 169097 states and 211268 transitions. [2021-11-06 18:05:49,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:05:49,701 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 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 226 [2021-11-06 18:05:49,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:05:50,155 INFO L225 Difference]: With dead ends: 169097 [2021-11-06 18:05:50,156 INFO L226 Difference]: Without dead ends: 100850 [2021-11-06 18:05:50,299 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 18:05:50,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100850 states. [2021-11-06 18:05:52,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100850 to 100844. [2021-11-06 18:05:52,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100844 states, 100412 states have (on average 1.2481675496952556) internal successors, (125331), 100414 states have internal predecessors, (125331), 315 states have call successors, (315), 114 states have call predecessors, (315), 114 states have return successors, (315), 315 states have call predecessors, (315), 315 states have call successors, (315) [2021-11-06 18:05:52,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100844 states to 100844 states and 125961 transitions. [2021-11-06 18:05:52,950 INFO L78 Accepts]: Start accepts. Automaton has 100844 states and 125961 transitions. Word has length 226 [2021-11-06 18:05:52,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:05:52,950 INFO L470 AbstractCegarLoop]: Abstraction has 100844 states and 125961 transitions. [2021-11-06 18:05:52,951 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 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 18:05:52,951 INFO L276 IsEmpty]: Start isEmpty. Operand 100844 states and 125961 transitions. [2021-11-06 18:05:52,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2021-11-06 18:05:52,966 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:05:52,966 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 18:05:52,967 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-06 18:05:52,967 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION === [video_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-06 18:05:52,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:05:52,967 INFO L85 PathProgramCache]: Analyzing trace with hash 1380853428, now seen corresponding path program 1 times [2021-11-06 18:05:52,967 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:05:52,968 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326592411] [2021-11-06 18:05:52,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:05:52,968 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:05:53,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:05:53,653 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 6 proven. 17 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-11-06 18:05:53,653 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:05:53,653 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326592411] [2021-11-06 18:05:53,654 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326592411] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-06 18:05:53,654 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [632927658] [2021-11-06 18:05:53,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:05:53,654 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 18:05:53,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 18:05:53,656 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-06 18:05:53,657 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-06 18:05:56,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:05:56,148 INFO L263 TraceCheckSpWp]: Trace formula consists of 8653 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-06 18:05:56,171 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 18:05:56,855 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2021-11-06 18:05:56,856 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [632927658] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:05:56,856 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-11-06 18:05:56,856 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2021-11-06 18:05:56,856 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374247040] [2021-11-06 18:05:56,857 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:05:56,857 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:05:56,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:05:56,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-06 18:05:56,857 INFO L87 Difference]: Start difference. First operand 100844 states and 125961 transitions. Second operand has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 2 states have internal predecessors, (218), 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 18:05:59,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:05:59,073 INFO L93 Difference]: Finished difference Result 200456 states and 250768 transitions. [2021-11-06 18:05:59,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:05:59,074 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 2 states have internal predecessors, (218), 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 244 [2021-11-06 18:05:59,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:05:59,391 INFO L225 Difference]: With dead ends: 200456 [2021-11-06 18:05:59,392 INFO L226 Difference]: Without dead ends: 100844 [2021-11-06 18:05:59,643 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 245 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-06 18:05:59,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100844 states. [2021-11-06 18:06:01,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100844 to 100844. [2021-11-06 18:06:02,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100844 states, 100412 states have (on average 1.2474803808309765) internal successors, (125262), 100414 states have internal predecessors, (125262), 315 states have call successors, (315), 114 states have call predecessors, (315), 114 states have return successors, (315), 315 states have call predecessors, (315), 315 states have call successors, (315) [2021-11-06 18:06:02,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100844 states to 100844 states and 125892 transitions. [2021-11-06 18:06:02,327 INFO L78 Accepts]: Start accepts. Automaton has 100844 states and 125892 transitions. Word has length 244 [2021-11-06 18:06:02,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:06:02,328 INFO L470 AbstractCegarLoop]: Abstraction has 100844 states and 125892 transitions. [2021-11-06 18:06:02,329 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 2 states have internal predecessors, (218), 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 18:06:02,329 INFO L276 IsEmpty]: Start isEmpty. Operand 100844 states and 125892 transitions. [2021-11-06 18:06:02,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2021-11-06 18:06:02,344 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:06:02,344 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 18:06:02,380 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-06 18:06:02,567 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 18:06:02,568 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION === [video_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-06 18:06:02,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:06:02,568 INFO L85 PathProgramCache]: Analyzing trace with hash -142967650, now seen corresponding path program 1 times [2021-11-06 18:06:02,568 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:06:02,568 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486287667] [2021-11-06 18:06:02,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:06:02,569 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:06:02,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:06:03,204 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 6 proven. 17 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-11-06 18:06:03,205 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:06:03,205 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486287667] [2021-11-06 18:06:03,205 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486287667] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-06 18:06:03,205 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1835615139] [2021-11-06 18:06:03,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:06:03,206 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 18:06:03,206 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 18:06:03,207 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-06 18:06:03,263 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-06 18:06:05,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:06:05,616 INFO L263 TraceCheckSpWp]: Trace formula consists of 8654 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-06 18:06:05,648 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 18:06:06,405 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2021-11-06 18:06:06,405 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1835615139] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:06:06,405 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-11-06 18:06:06,406 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2021-11-06 18:06:06,406 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827534396] [2021-11-06 18:06:06,406 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:06:06,406 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:06:06,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:06:06,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-06 18:06:06,407 INFO L87 Difference]: Start difference. First operand 100844 states and 125892 transitions. Second operand has 3 states, 3 states have (on average 73.0) internal successors, (219), 2 states have internal predecessors, (219), 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 18:06:08,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:06:08,772 INFO L93 Difference]: Finished difference Result 200456 states and 250630 transitions. [2021-11-06 18:06:08,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:06:08,773 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.0) internal successors, (219), 2 states have internal predecessors, (219), 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 245 [2021-11-06 18:06:08,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:06:09,093 INFO L225 Difference]: With dead ends: 200456 [2021-11-06 18:06:09,093 INFO L226 Difference]: Without dead ends: 100844 [2021-11-06 18:06:09,360 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-06 18:06:09,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100844 states. [2021-11-06 18:06:11,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100844 to 100844. [2021-11-06 18:06:11,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100844 states, 100412 states have (on average 1.2467932119666971) internal successors, (125193), 100414 states have internal predecessors, (125193), 315 states have call successors, (315), 114 states have call predecessors, (315), 114 states have return successors, (315), 315 states have call predecessors, (315), 315 states have call successors, (315) [2021-11-06 18:06:12,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100844 states to 100844 states and 125823 transitions. [2021-11-06 18:06:12,190 INFO L78 Accepts]: Start accepts. Automaton has 100844 states and 125823 transitions. Word has length 245 [2021-11-06 18:06:12,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:06:12,191 INFO L470 AbstractCegarLoop]: Abstraction has 100844 states and 125823 transitions. [2021-11-06 18:06:12,191 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.0) internal successors, (219), 2 states have internal predecessors, (219), 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 18:06:12,192 INFO L276 IsEmpty]: Start isEmpty. Operand 100844 states and 125823 transitions. [2021-11-06 18:06:12,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2021-11-06 18:06:12,206 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:06:12,207 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 18:06:12,243 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-06 18:06:12,431 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-11-06 18:06:12,432 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION === [video_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-06 18:06:12,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:06:12,432 INFO L85 PathProgramCache]: Analyzing trace with hash -136631857, now seen corresponding path program 1 times [2021-11-06 18:06:12,432 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:06:12,432 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313926014] [2021-11-06 18:06:12,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:06:12,432 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:06:12,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:06:12,819 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 6 proven. 17 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-11-06 18:06:12,819 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:06:12,819 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313926014] [2021-11-06 18:06:12,819 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313926014] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-06 18:06:12,820 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1277751826] [2021-11-06 18:06:12,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:06:12,820 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 18:06:12,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 18:06:12,840 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-06 18:06:12,844 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-06 18:06:15,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:06:15,459 INFO L263 TraceCheckSpWp]: Trace formula consists of 8655 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-06 18:06:15,468 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 18:06:16,201 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2021-11-06 18:06:16,201 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1277751826] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:06:16,201 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-11-06 18:06:16,201 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2021-11-06 18:06:16,201 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889905941] [2021-11-06 18:06:16,202 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:06:16,202 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:06:16,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:06:16,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-06 18:06:16,203 INFO L87 Difference]: Start difference. First operand 100844 states and 125823 transitions. Second operand has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 2 states have internal predecessors, (220), 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 18:06:18,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:06:18,606 INFO L93 Difference]: Finished difference Result 200456 states and 250492 transitions. [2021-11-06 18:06:18,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:06:18,607 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 2 states have internal predecessors, (220), 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 246 [2021-11-06 18:06:18,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:06:18,907 INFO L225 Difference]: With dead ends: 200456 [2021-11-06 18:06:18,908 INFO L226 Difference]: Without dead ends: 100844 [2021-11-06 18:06:19,351 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-06 18:06:19,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100844 states. [2021-11-06 18:06:21,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100844 to 100844. [2021-11-06 18:06:21,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100844 states, 100412 states have (on average 1.246106043102418) internal successors, (125124), 100414 states have internal predecessors, (125124), 315 states have call successors, (315), 114 states have call predecessors, (315), 114 states have return successors, (315), 315 states have call predecessors, (315), 315 states have call successors, (315) [2021-11-06 18:06:22,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100844 states to 100844 states and 125754 transitions. [2021-11-06 18:06:22,011 INFO L78 Accepts]: Start accepts. Automaton has 100844 states and 125754 transitions. Word has length 246 [2021-11-06 18:06:22,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:06:22,012 INFO L470 AbstractCegarLoop]: Abstraction has 100844 states and 125754 transitions. [2021-11-06 18:06:22,012 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 2 states have internal predecessors, (220), 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 18:06:22,012 INFO L276 IsEmpty]: Start isEmpty. Operand 100844 states and 125754 transitions. [2021-11-06 18:06:22,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2021-11-06 18:06:22,030 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:06:22,030 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 18:06:22,064 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-11-06 18:06:22,239 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 18:06:22,240 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION === [video_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-06 18:06:22,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:06:22,241 INFO L85 PathProgramCache]: Analyzing trace with hash 59926681, now seen corresponding path program 1 times [2021-11-06 18:06:22,241 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:06:22,241 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082894090] [2021-11-06 18:06:22,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:06:22,241 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:06:22,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:06:22,681 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 6 proven. 17 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-11-06 18:06:22,681 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:06:22,682 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082894090] [2021-11-06 18:06:22,682 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082894090] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-06 18:06:22,682 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1573150193] [2021-11-06 18:06:22,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:06:22,682 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 18:06:22,682 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 18:06:22,700 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-06 18:06:22,715 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-06 18:06:25,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:06:25,309 INFO L263 TraceCheckSpWp]: Trace formula consists of 8656 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-06 18:06:25,316 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 18:06:25,900 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2021-11-06 18:06:25,900 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1573150193] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:06:25,900 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-11-06 18:06:25,900 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2021-11-06 18:06:25,900 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794777173] [2021-11-06 18:06:25,901 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:06:25,901 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:06:25,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:06:25,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-06 18:06:25,902 INFO L87 Difference]: Start difference. First operand 100844 states and 125754 transitions. Second operand has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 2 states have internal predecessors, (221), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)