./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 5b36d44f 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-wip.dd.seqcomp-5b36d44 [2021-11-07 16:28:43,742 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 16:28:43,743 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 16:28:43,785 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 16:28:43,785 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 16:28:43,786 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 16:28:43,787 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 16:28:43,788 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 16:28:43,790 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 16:28:43,792 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 16:28:43,792 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 16:28:43,794 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 16:28:43,795 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 16:28:43,799 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 16:28:43,801 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 16:28:43,802 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 16:28:43,804 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 16:28:43,805 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 16:28:43,806 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 16:28:43,809 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 16:28:43,812 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 16:28:43,813 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 16:28:43,813 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 16:28:43,814 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 16:28:43,816 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 16:28:43,818 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 16:28:43,819 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 16:28:43,820 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 16:28:43,821 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 16:28:43,821 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 16:28:43,821 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 16:28:43,822 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 16:28:43,823 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 16:28:43,824 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 16:28:43,825 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 16:28:43,825 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 16:28:43,826 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 16:28:43,826 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 16:28:43,826 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 16:28:43,827 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 16:28:43,827 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 16:28:43,828 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 16:28:43,853 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 16:28:43,854 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 16:28:43,854 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 16:28:43,854 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 16:28:43,855 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 16:28:43,856 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 16:28:43,856 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 16:28:43,856 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 16:28:43,856 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 16:28:43,856 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 16:28:43,857 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 16:28:43,857 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 16:28:43,857 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 16:28:43,857 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 16:28:43,857 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 16:28:43,858 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 16:28:43,858 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 16:28:43,858 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 16:28:43,858 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 16:28:43,858 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 16:28:43,858 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 16:28:43,859 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 16:28:43,859 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 16:28:43,859 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 16:28:43,859 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 16:28:43,859 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 16:28:43,859 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 16:28:43,859 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 16:28:43,860 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 16:28:43,860 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 24e26672720ca570553d18d605e2ce47cd111ea61f1f4153430b6ee115172355 [2021-11-07 16:28:44,054 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 16:28:44,073 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 16:28:44,076 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 16:28:44,077 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 16:28:44,077 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 16:28:44,078 INFO L432 ainManager$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 [2021-11-07 16:28:44,152 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/646aa06c5/14a9e312b1574c75aed8aec93035d23d/FLAGe259966d5 [2021-11-07 16:28:44,832 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 16:28:44,833 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 [2021-11-07 16:28:44,894 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/646aa06c5/14a9e312b1574c75aed8aec93035d23d/FLAGe259966d5 [2021-11-07 16:28:45,366 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/646aa06c5/14a9e312b1574c75aed8aec93035d23d [2021-11-07 16:28:45,369 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 16:28:45,370 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 16:28:45,373 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 16:28:45,374 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 16:28:45,376 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 16:28:45,377 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:28:45" (1/1) ... [2021-11-07 16:28:45,378 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75d06315 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:28:45, skipping insertion in model container [2021-11-07 16:28:45,378 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:28:45" (1/1) ... [2021-11-07 16:28:45,383 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 16:28:45,521 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 16:28:49,339 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] [2021-11-07 16:28:49,341 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] [2021-11-07 16:28:49,359 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 16:28:49,424 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 16:28:49,934 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] [2021-11-07 16:28:49,935 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] [2021-11-07 16:28:49,940 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 16:28:50,090 INFO L208 MainTranslator]: Completed translation [2021-11-07 16:28:50,090 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:28:50 WrapperNode [2021-11-07 16:28:50,091 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 16:28:50,092 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 16:28:50,092 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 16:28:50,092 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 16:28:50,097 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:28:50" (1/1) ... [2021-11-07 16:28:50,171 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:28:50" (1/1) ... [2021-11-07 16:28:50,893 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 16:28:50,894 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 16:28:50,894 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 16:28:50,894 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 16:28:50,900 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:28:50" (1/1) ... [2021-11-07 16:28:50,901 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:28:50" (1/1) ... [2021-11-07 16:28:50,995 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:28:50" (1/1) ... [2021-11-07 16:28:51,011 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:28:50" (1/1) ... [2021-11-07 16:28:51,488 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:28:50" (1/1) ... [2021-11-07 16:28:51,648 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:28:50" (1/1) ... [2021-11-07 16:28:51,744 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:28:50" (1/1) ... [2021-11-07 16:28:52,032 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 16:28:52,033 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 16:28:52,033 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 16:28:52,033 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 16:28:52,048 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:28:50" (1/1) ... [2021-11-07 16:28:52,054 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 16:28:52,062 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 16:28:52,098 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) [2021-11-07 16:28:52,127 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 [2021-11-07 16:28:52,148 INFO L130 BoogieDeclarations]: Found specification of procedure video_open [2021-11-07 16:28:52,148 INFO L138 BoogieDeclarations]: Found implementation of procedure video_open [2021-11-07 16:28:52,148 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 16:28:52,149 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_audio_thread [2021-11-07 16:28:52,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-07 16:28:52,149 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 16:28:52,149 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_set_freq [2021-11-07 16:28:52,149 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_set_freq [2021-11-07 16:28:52,149 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 16:28:52,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 16:28:52,150 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-07 16:28:52,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-07 16:28:52,150 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 16:28:52,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 16:28:52,150 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 16:28:52,150 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 16:28:52,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 16:28:52,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 16:28:52,151 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-07 16:28:52,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-07 16:28:52,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 16:29:34,583 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#4: ldv_switch_1_#res := 0; [2021-11-07 16:29:34,583 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-07 16:29:34,583 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2021-11-07 16:29:34,583 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#2: ldv_switch_2_#res := 0; [2021-11-07 16:29:34,583 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#3: ldv_switch_2_#res := 0; [2021-11-07 16:29:34,583 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#4: ldv_switch_2_#res := 0; [2021-11-07 16:29:34,583 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-07 16:29:34,584 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#3: ldv_switch_0_#res := 0; [2021-11-07 16:29:34,584 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-07 16:29:34,584 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0; [2021-11-07 16:29:34,585 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-07 16:29:34,585 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-07 16:29:35,919 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 16:29:35,919 INFO L299 CfgBuilder]: Removed 5383 assume(true) statements. [2021-11-07 16:29:35,926 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:29:35 BoogieIcfgContainer [2021-11-07 16:29:35,926 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 16:29:35,928 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 16:29:35,928 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 16:29:35,930 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 16:29:35,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:28:45" (1/3) ... [2021-11-07 16:29:35,931 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c61e19a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:29:35, skipping insertion in model container [2021-11-07 16:29:35,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:28:50" (2/3) ... [2021-11-07 16:29:35,932 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c61e19a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:29:35, skipping insertion in model container [2021-11-07 16:29:35,932 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:29:35" (3/3) ... [2021-11-07 16:29:35,933 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-pci-cx88-cx8800.cil.i [2021-11-07 16:29:35,936 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 16:29:35,937 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-07 16:29:36,002 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 16:29:36,007 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 [2021-11-07 16:29:36,008 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-07 16:29:36,071 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) [2021-11-07 16:29:36,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2021-11-07 16:29:36,095 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 16:29:36,095 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 16:29:36,096 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] === [2021-11-07 16:29:36,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 16:29:36,099 INFO L85 PathProgramCache]: Analyzing trace with hash 658504876, now seen corresponding path program 1 times [2021-11-07 16:29:36,105 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 16:29:36,105 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288118976] [2021-11-07 16:29:36,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 16:29:36,106 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 16:29:36,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 16:29:37,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 16:29:37,015 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 16:29:37,015 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288118976] [2021-11-07 16:29:37,017 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288118976] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 16:29:37,017 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 16:29:37,017 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 16:29:37,019 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478242470] [2021-11-07 16:29:37,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 16:29:37,024 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 16:29:37,024 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 16:29:37,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 16:29:37,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 16:29:37,065 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) [2021-11-07 16:29:39,210 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 16:29:39,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 16:29:39,815 INFO L93 Difference]: Finished difference Result 14189 states and 18569 transitions. [2021-11-07 16:29:39,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 16:29:39,817 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 [2021-11-07 16:29:39,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 16:29:39,854 INFO L225 Difference]: With dead ends: 14189 [2021-11-07 16:29:39,855 INFO L226 Difference]: Without dead ends: 8440 [2021-11-07 16:29:39,879 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.79ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 16:29:39,882 INFO L933 BasicCegarLoop]: 7665 mSDtfsCounter, 5042 mSDsluCounter, 6860 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2255.34ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5042 SdHoareTripleChecker+Valid, 14525 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 31.42ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2434.94ms IncrementalHoareTripleChecker+Time [2021-11-07 16:29:39,882 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5042 Valid, 14525 Invalid, 150 Unknown, 0 Unchecked, 31.42ms Time], IncrementalHoareTripleChecker [13 Valid, 136 Invalid, 1 Unknown, 0 Unchecked, 2434.94ms Time] [2021-11-07 16:29:39,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8440 states. [2021-11-07 16:29:40,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8440 to 8426. [2021-11-07 16:29:40,265 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) [2021-11-07 16:29:40,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8426 states to 8426 states and 10454 transitions. [2021-11-07 16:29:40,298 INFO L78 Accepts]: Start accepts. Automaton has 8426 states and 10454 transitions. Word has length 176 [2021-11-07 16:29:40,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 16:29:40,300 INFO L470 AbstractCegarLoop]: Abstraction has 8426 states and 10454 transitions. [2021-11-07 16:29:40,301 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) [2021-11-07 16:29:40,302 INFO L276 IsEmpty]: Start isEmpty. Operand 8426 states and 10454 transitions. [2021-11-07 16:29:40,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2021-11-07 16:29:40,308 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 16:29:40,308 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 16:29:40,309 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 16:29:40,309 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] === [2021-11-07 16:29:40,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 16:29:40,310 INFO L85 PathProgramCache]: Analyzing trace with hash 1394049775, now seen corresponding path program 1 times [2021-11-07 16:29:40,310 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 16:29:40,310 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456807773] [2021-11-07 16:29:40,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 16:29:40,311 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 16:29:40,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 16:29:40,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 16:29:40,769 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 16:29:40,769 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456807773] [2021-11-07 16:29:40,769 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456807773] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 16:29:40,769 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 16:29:40,770 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 16:29:40,770 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521582533] [2021-11-07 16:29:40,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 16:29:40,772 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 16:29:40,773 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 16:29:40,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 16:29:40,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 16:29:40,776 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) [2021-11-07 16:29:42,881 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 16:29:43,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 16:29:43,355 INFO L93 Difference]: Finished difference Result 23000 states and 28711 transitions. [2021-11-07 16:29:43,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 16:29:43,356 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 [2021-11-07 16:29:43,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 16:29:43,419 INFO L225 Difference]: With dead ends: 23000 [2021-11-07 16:29:43,419 INFO L226 Difference]: Without dead ends: 14970 [2021-11-07 16:29:43,444 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.76ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 16:29:43,445 INFO L933 BasicCegarLoop]: 6478 mSDtfsCounter, 4669 mSDsluCounter, 5975 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 17 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2156.45ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4669 SdHoareTripleChecker+Valid, 12453 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.61ms SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2309.30ms IncrementalHoareTripleChecker+Time [2021-11-07 16:29:43,445 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4669 Valid, 12453 Invalid, 88 Unknown, 0 Unchecked, 15.61ms Time], IncrementalHoareTripleChecker [17 Valid, 70 Invalid, 1 Unknown, 0 Unchecked, 2309.30ms Time] [2021-11-07 16:29:43,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14970 states. [2021-11-07 16:29:43,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14970 to 14958. [2021-11-07 16:29:43,740 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) [2021-11-07 16:29:43,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14958 states to 14958 states and 18660 transitions. [2021-11-07 16:29:43,778 INFO L78 Accepts]: Start accepts. Automaton has 14958 states and 18660 transitions. Word has length 179 [2021-11-07 16:29:43,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 16:29:43,779 INFO L470 AbstractCegarLoop]: Abstraction has 14958 states and 18660 transitions. [2021-11-07 16:29:43,780 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) [2021-11-07 16:29:43,780 INFO L276 IsEmpty]: Start isEmpty. Operand 14958 states and 18660 transitions. [2021-11-07 16:29:43,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2021-11-07 16:29:43,785 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 16:29:43,785 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 16:29:43,785 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 16:29:43,786 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] === [2021-11-07 16:29:43,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 16:29:43,786 INFO L85 PathProgramCache]: Analyzing trace with hash -878768903, now seen corresponding path program 1 times [2021-11-07 16:29:43,786 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 16:29:43,786 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985268147] [2021-11-07 16:29:43,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 16:29:43,787 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 16:29:43,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 16:29:44,195 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 16:29:44,195 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 16:29:44,195 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985268147] [2021-11-07 16:29:44,195 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985268147] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 16:29:44,196 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 16:29:44,196 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 16:29:44,196 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832759599] [2021-11-07 16:29:44,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 16:29:44,197 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 16:29:44,197 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 16:29:44,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 16:29:44,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 16:29:44,198 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) [2021-11-07 16:29:46,300 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 16:29:46,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 16:29:46,875 INFO L93 Difference]: Finished difference Result 32291 states and 40354 transitions. [2021-11-07 16:29:46,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 16:29:46,875 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 [2021-11-07 16:29:46,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 16:29:46,942 INFO L225 Difference]: With dead ends: 32291 [2021-11-07 16:29:46,942 INFO L226 Difference]: Without dead ends: 17729 [2021-11-07 16:29:46,975 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.60ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 16:29:46,978 INFO L933 BasicCegarLoop]: 6481 mSDtfsCounter, 3483 mSDsluCounter, 5977 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2146.30ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3483 SdHoareTripleChecker+Valid, 12458 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.80ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2333.11ms IncrementalHoareTripleChecker+Time [2021-11-07 16:29:46,980 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3483 Valid, 12458 Invalid, 48 Unknown, 0 Unchecked, 14.80ms Time], IncrementalHoareTripleChecker [8 Valid, 39 Invalid, 1 Unknown, 0 Unchecked, 2333.11ms Time] [2021-11-07 16:29:47,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17729 states. [2021-11-07 16:29:47,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17729 to 17725. [2021-11-07 16:29:47,300 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) [2021-11-07 16:29:47,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17725 states to 17725 states and 22129 transitions. [2021-11-07 16:29:47,344 INFO L78 Accepts]: Start accepts. Automaton has 17725 states and 22129 transitions. Word has length 193 [2021-11-07 16:29:47,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 16:29:47,344 INFO L470 AbstractCegarLoop]: Abstraction has 17725 states and 22129 transitions. [2021-11-07 16:29:47,345 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) [2021-11-07 16:29:47,345 INFO L276 IsEmpty]: Start isEmpty. Operand 17725 states and 22129 transitions. [2021-11-07 16:29:47,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2021-11-07 16:29:47,349 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 16:29:47,349 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 16:29:47,350 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 16:29:47,350 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] === [2021-11-07 16:29:47,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 16:29:47,350 INFO L85 PathProgramCache]: Analyzing trace with hash 2086883259, now seen corresponding path program 1 times [2021-11-07 16:29:47,352 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 16:29:47,352 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109023158] [2021-11-07 16:29:47,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 16:29:47,352 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 16:29:47,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 16:29:47,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 16:29:47,728 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 16:29:47,728 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109023158] [2021-11-07 16:29:47,728 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109023158] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 16:29:47,728 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 16:29:47,729 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 16:29:47,729 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997800068] [2021-11-07 16:29:47,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 16:29:47,729 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 16:29:47,729 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 16:29:47,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 16:29:47,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 16:29:47,730 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) [2021-11-07 16:29:49,841 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 16:29:50,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 16:29:50,444 INFO L93 Difference]: Finished difference Result 42356 states and 52874 transitions. [2021-11-07 16:29:50,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 16:29:50,445 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 [2021-11-07 16:29:50,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 16:29:50,515 INFO L225 Difference]: With dead ends: 42356 [2021-11-07 16:29:50,516 INFO L226 Difference]: Without dead ends: 25027 [2021-11-07 16:29:50,554 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.13ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 16:29:50,556 INFO L933 BasicCegarLoop]: 7778 mSDtfsCounter, 4328 mSDsluCounter, 5900 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2209.38ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4328 SdHoareTripleChecker+Valid, 13678 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.83ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2371.08ms IncrementalHoareTripleChecker+Time [2021-11-07 16:29:50,557 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4328 Valid, 13678 Invalid, 150 Unknown, 0 Unchecked, 14.83ms Time], IncrementalHoareTripleChecker [13 Valid, 136 Invalid, 1 Unknown, 0 Unchecked, 2371.08ms Time] [2021-11-07 16:29:50,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25027 states. [2021-11-07 16:29:51,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25027 to 25009. [2021-11-07 16:29:51,144 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) [2021-11-07 16:29:51,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25009 states to 25009 states and 31125 transitions. [2021-11-07 16:29:51,198 INFO L78 Accepts]: Start accepts. Automaton has 25009 states and 31125 transitions. Word has length 198 [2021-11-07 16:29:51,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 16:29:51,199 INFO L470 AbstractCegarLoop]: Abstraction has 25009 states and 31125 transitions. [2021-11-07 16:29:51,199 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) [2021-11-07 16:29:51,199 INFO L276 IsEmpty]: Start isEmpty. Operand 25009 states and 31125 transitions. [2021-11-07 16:29:51,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2021-11-07 16:29:51,205 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 16:29:51,206 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 16:29:51,206 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 16:29:51,206 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] === [2021-11-07 16:29:51,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 16:29:51,207 INFO L85 PathProgramCache]: Analyzing trace with hash -1241698348, now seen corresponding path program 1 times [2021-11-07 16:29:51,207 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 16:29:51,207 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770162548] [2021-11-07 16:29:51,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 16:29:51,207 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 16:29:51,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 16:29:51,573 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 16:29:51,574 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 16:29:51,574 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770162548] [2021-11-07 16:29:51,575 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770162548] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 16:29:51,577 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 16:29:51,577 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 16:29:51,577 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906270284] [2021-11-07 16:29:51,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 16:29:51,578 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 16:29:51,578 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 16:29:51,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 16:29:51,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 16:29:51,579 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) [2021-11-07 16:29:53,692 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 16:29:54,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 16:29:54,464 INFO L93 Difference]: Finished difference Result 58956 states and 73578 transitions. [2021-11-07 16:29:54,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 16:29:54,465 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 [2021-11-07 16:29:54,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 16:29:54,563 INFO L225 Difference]: With dead ends: 58956 [2021-11-07 16:29:54,564 INFO L226 Difference]: Without dead ends: 35179 [2021-11-07 16:29:54,630 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.76ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 16:29:54,633 INFO L933 BasicCegarLoop]: 10701 mSDtfsCounter, 4672 mSDsluCounter, 5960 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2180.47ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4672 SdHoareTripleChecker+Valid, 16661 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.25ms SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2396.05ms IncrementalHoareTripleChecker+Time [2021-11-07 16:29:54,633 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4672 Valid, 16661 Invalid, 86 Unknown, 0 Unchecked, 13.25ms Time], IncrementalHoareTripleChecker [15 Valid, 70 Invalid, 1 Unknown, 0 Unchecked, 2396.05ms Time] [2021-11-07 16:29:54,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35179 states. [2021-11-07 16:29:55,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35179 to 35159. [2021-11-07 16:29:55,497 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) [2021-11-07 16:29:55,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35159 states to 35159 states and 43844 transitions. [2021-11-07 16:29:55,793 INFO L78 Accepts]: Start accepts. Automaton has 35159 states and 43844 transitions. Word has length 215 [2021-11-07 16:29:55,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 16:29:55,794 INFO L470 AbstractCegarLoop]: Abstraction has 35159 states and 43844 transitions. [2021-11-07 16:29:55,794 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) [2021-11-07 16:29:55,794 INFO L276 IsEmpty]: Start isEmpty. Operand 35159 states and 43844 transitions. [2021-11-07 16:29:55,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2021-11-07 16:29:55,803 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 16:29:55,803 INFO L514 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] [2021-11-07 16:29:55,804 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-07 16:29:55,804 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] === [2021-11-07 16:29:55,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 16:29:55,805 INFO L85 PathProgramCache]: Analyzing trace with hash 1337708022, now seen corresponding path program 1 times [2021-11-07 16:29:55,805 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 16:29:55,805 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717252806] [2021-11-07 16:29:55,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 16:29:55,805 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 16:29:56,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 16:29:56,190 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 16:29:56,191 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 16:29:56,191 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717252806] [2021-11-07 16:29:56,191 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717252806] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 16:29:56,191 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 16:29:56,191 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 16:29:56,192 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076427671] [2021-11-07 16:29:56,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 16:29:56,192 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 16:29:56,192 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 16:29:56,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 16:29:56,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 16:29:56,193 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) [2021-11-07 16:29:58,309 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 16:29:59,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 16:29:59,516 INFO L93 Difference]: Finished difference Result 102423 states and 127956 transitions. [2021-11-07 16:29:59,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 16:29:59,517 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 [2021-11-07 16:29:59,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 16:29:59,728 INFO L225 Difference]: With dead ends: 102423 [2021-11-07 16:29:59,729 INFO L226 Difference]: Without dead ends: 68496 [2021-11-07 16:29:59,825 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.77ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 16:29:59,826 INFO L933 BasicCegarLoop]: 10190 mSDtfsCounter, 5508 mSDsluCounter, 5996 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2147.79ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5508 SdHoareTripleChecker+Valid, 16186 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.65ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2319.26ms IncrementalHoareTripleChecker+Time [2021-11-07 16:29:59,826 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5508 Valid, 16186 Invalid, 45 Unknown, 0 Unchecked, 12.65ms Time], IncrementalHoareTripleChecker [7 Valid, 37 Invalid, 1 Unknown, 0 Unchecked, 2319.26ms Time] [2021-11-07 16:29:59,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68496 states. [2021-11-07 16:30:01,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68496 to 68490. [2021-11-07 16:30:01,270 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) [2021-11-07 16:30:01,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68490 states to 68490 states and 85494 transitions. [2021-11-07 16:30:01,421 INFO L78 Accepts]: Start accepts. Automaton has 68490 states and 85494 transitions. Word has length 226 [2021-11-07 16:30:01,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 16:30:01,423 INFO L470 AbstractCegarLoop]: Abstraction has 68490 states and 85494 transitions. [2021-11-07 16:30:01,423 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) [2021-11-07 16:30:01,423 INFO L276 IsEmpty]: Start isEmpty. Operand 68490 states and 85494 transitions. [2021-11-07 16:30:01,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2021-11-07 16:30:01,434 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 16:30:01,434 INFO L514 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] [2021-11-07 16:30:01,434 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-07 16:30:01,434 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] === [2021-11-07 16:30:01,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 16:30:01,435 INFO L85 PathProgramCache]: Analyzing trace with hash 440314744, now seen corresponding path program 1 times [2021-11-07 16:30:01,435 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 16:30:01,435 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366437763] [2021-11-07 16:30:01,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 16:30:01,435 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 16:30:01,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 16:30:02,055 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 16:30:02,056 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 16:30:02,056 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366437763] [2021-11-07 16:30:02,056 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366437763] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 16:30:02,056 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 16:30:02,056 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 16:30:02,056 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852747286] [2021-11-07 16:30:02,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 16:30:02,057 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 16:30:02,057 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 16:30:02,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 16:30:02,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 16:30:02,058 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) [2021-11-07 16:30:04,176 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 16:30:06,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 16:30:06,236 INFO L93 Difference]: Finished difference Result 169097 states and 211268 transitions. [2021-11-07 16:30:06,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 16:30:06,237 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 [2021-11-07 16:30:06,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 16:30:06,640 INFO L225 Difference]: With dead ends: 169097 [2021-11-07 16:30:06,641 INFO L226 Difference]: Without dead ends: 100850 [2021-11-07 16:30:06,750 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.06ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 16:30:06,752 INFO L933 BasicCegarLoop]: 11537 mSDtfsCounter, 5504 mSDsluCounter, 6000 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2174.10ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5504 SdHoareTripleChecker+Valid, 17537 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.73ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2340.51ms IncrementalHoareTripleChecker+Time [2021-11-07 16:30:06,752 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5504 Valid, 17537 Invalid, 46 Unknown, 0 Unchecked, 14.73ms Time], IncrementalHoareTripleChecker [7 Valid, 38 Invalid, 1 Unknown, 0 Unchecked, 2340.51ms Time] [2021-11-07 16:30:06,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100850 states. [2021-11-07 16:30:08,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100850 to 100844. [2021-11-07 16:30:08,707 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) [2021-11-07 16:30:08,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100844 states to 100844 states and 125961 transitions. [2021-11-07 16:30:08,942 INFO L78 Accepts]: Start accepts. Automaton has 100844 states and 125961 transitions. Word has length 226 [2021-11-07 16:30:08,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 16:30:08,943 INFO L470 AbstractCegarLoop]: Abstraction has 100844 states and 125961 transitions. [2021-11-07 16:30:08,943 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) [2021-11-07 16:30:08,944 INFO L276 IsEmpty]: Start isEmpty. Operand 100844 states and 125961 transitions. [2021-11-07 16:30:08,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2021-11-07 16:30:08,958 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 16:30:08,958 INFO L514 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] [2021-11-07 16:30:08,958 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-07 16:30:08,958 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] === [2021-11-07 16:30:08,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 16:30:08,959 INFO L85 PathProgramCache]: Analyzing trace with hash 1380853428, now seen corresponding path program 1 times [2021-11-07 16:30:08,959 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 16:30:08,960 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286142240] [2021-11-07 16:30:08,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 16:30:08,960 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 16:30:09,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 16:30:09,540 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 6 proven. 17 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-11-07 16:30:09,540 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 16:30:09,540 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286142240] [2021-11-07 16:30:09,540 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286142240] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 16:30:09,540 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1139755935] [2021-11-07 16:30:09,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 16:30:09,541 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 16:30:09,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 16:30:09,552 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) [2021-11-07 16:30:09,555 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-07 16:30:11,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 16:30:11,980 INFO L263 TraceCheckSpWp]: Trace formula consists of 8653 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 16:30:11,994 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 16:30:12,590 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2021-11-07 16:30:12,590 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 16:30:12,590 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1139755935] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 16:30:12,590 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-07 16:30:12,591 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2021-11-07 16:30:12,591 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399390105] [2021-11-07 16:30:12,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 16:30:12,591 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 16:30:12,592 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 16:30:12,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 16:30:12,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 16:30:12,592 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) [2021-11-07 16:30:14,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 16:30:14,591 INFO L93 Difference]: Finished difference Result 200456 states and 250768 transitions. [2021-11-07 16:30:14,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 16:30:14,591 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 [2021-11-07 16:30:14,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 16:30:15,126 INFO L225 Difference]: With dead ends: 200456 [2021-11-07 16:30:15,126 INFO L226 Difference]: Without dead ends: 100844 [2021-11-07 16:30:15,334 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 245 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.76ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 16:30:15,335 INFO L933 BasicCegarLoop]: 6025 mSDtfsCounter, 5813 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.78ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5813 SdHoareTripleChecker+Valid, 6025 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.03ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.70ms IncrementalHoareTripleChecker+Time [2021-11-07 16:30:15,336 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5813 Valid, 6025 Invalid, 5 Unknown, 0 Unchecked, 8.03ms Time], IncrementalHoareTripleChecker [2 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 6.70ms Time] [2021-11-07 16:30:15,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100844 states. [2021-11-07 16:30:17,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100844 to 100844. [2021-11-07 16:30:17,428 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) [2021-11-07 16:30:17,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100844 states to 100844 states and 125892 transitions. [2021-11-07 16:30:17,671 INFO L78 Accepts]: Start accepts. Automaton has 100844 states and 125892 transitions. Word has length 244 [2021-11-07 16:30:17,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 16:30:17,672 INFO L470 AbstractCegarLoop]: Abstraction has 100844 states and 125892 transitions. [2021-11-07 16:30:17,672 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) [2021-11-07 16:30:17,672 INFO L276 IsEmpty]: Start isEmpty. Operand 100844 states and 125892 transitions. [2021-11-07 16:30:17,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2021-11-07 16:30:17,716 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 16:30:17,716 INFO L514 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] [2021-11-07 16:30:17,768 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-07 16:30:17,935 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 [2021-11-07 16:30:17,936 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] === [2021-11-07 16:30:17,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 16:30:17,936 INFO L85 PathProgramCache]: Analyzing trace with hash -142967650, now seen corresponding path program 1 times [2021-11-07 16:30:17,936 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 16:30:17,936 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207034358] [2021-11-07 16:30:17,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 16:30:17,937 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 16:30:18,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 16:30:18,725 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 6 proven. 17 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-11-07 16:30:18,725 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 16:30:18,726 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207034358] [2021-11-07 16:30:18,726 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207034358] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 16:30:18,726 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1242600259] [2021-11-07 16:30:18,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 16:30:18,726 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 16:30:18,726 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 16:30:18,727 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) [2021-11-07 16:30:18,753 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-07 16:30:20,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 16:30:20,994 INFO L263 TraceCheckSpWp]: Trace formula consists of 8654 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 16:30:21,040 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 16:30:21,801 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2021-11-07 16:30:21,801 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 16:30:21,801 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1242600259] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 16:30:21,801 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-07 16:30:21,802 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2021-11-07 16:30:21,802 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106233840] [2021-11-07 16:30:21,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 16:30:21,802 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 16:30:21,802 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 16:30:21,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 16:30:21,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 16:30:21,803 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) [2021-11-07 16:30:24,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 16:30:24,060 INFO L93 Difference]: Finished difference Result 200456 states and 250630 transitions. [2021-11-07 16:30:24,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 16:30:24,061 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 [2021-11-07 16:30:24,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 16:30:24,380 INFO L225 Difference]: With dead ends: 200456 [2021-11-07 16:30:24,381 INFO L226 Difference]: Without dead ends: 100844 [2021-11-07 16:30:24,588 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.08ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 16:30:24,590 INFO L933 BasicCegarLoop]: 6022 mSDtfsCounter, 5809 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5809 SdHoareTripleChecker+Valid, 6022 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.25ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.93ms IncrementalHoareTripleChecker+Time [2021-11-07 16:30:24,590 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5809 Valid, 6022 Invalid, 5 Unknown, 0 Unchecked, 7.25ms Time], IncrementalHoareTripleChecker [2 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 5.93ms Time] [2021-11-07 16:30:24,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100844 states. [2021-11-07 16:30:26,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100844 to 100844. [2021-11-07 16:30:26,799 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) [2021-11-07 16:30:27,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100844 states to 100844 states and 125823 transitions. [2021-11-07 16:30:27,003 INFO L78 Accepts]: Start accepts. Automaton has 100844 states and 125823 transitions. Word has length 245 [2021-11-07 16:30:27,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 16:30:27,003 INFO L470 AbstractCegarLoop]: Abstraction has 100844 states and 125823 transitions. [2021-11-07 16:30:27,003 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) [2021-11-07 16:30:27,003 INFO L276 IsEmpty]: Start isEmpty. Operand 100844 states and 125823 transitions. [2021-11-07 16:30:27,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2021-11-07 16:30:27,036 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 16:30:27,037 INFO L514 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] [2021-11-07 16:30:27,095 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-07 16:30:27,259 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 [2021-11-07 16:30:27,260 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] === [2021-11-07 16:30:27,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 16:30:27,260 INFO L85 PathProgramCache]: Analyzing trace with hash -136631857, now seen corresponding path program 1 times [2021-11-07 16:30:27,260 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 16:30:27,261 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770920240] [2021-11-07 16:30:27,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 16:30:27,261 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 16:30:27,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 16:30:27,625 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 6 proven. 17 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-11-07 16:30:27,625 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 16:30:27,625 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770920240] [2021-11-07 16:30:27,625 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770920240] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 16:30:27,625 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [334174290] [2021-11-07 16:30:27,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 16:30:27,626 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 16:30:27,626 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 16:30:27,648 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) [2021-11-07 16:30:27,899 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-07 16:30:30,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 16:30:30,049 INFO L263 TraceCheckSpWp]: Trace formula consists of 8655 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 16:30:30,056 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 16:30:30,654 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2021-11-07 16:30:30,654 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-07 16:30:30,654 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [334174290] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 16:30:30,654 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-07 16:30:30,654 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2021-11-07 16:30:30,654 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385231862] [2021-11-07 16:30:30,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 16:30:30,655 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 16:30:30,655 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 16:30:30,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 16:30:30,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 16:30:30,655 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) [2021-11-07 16:30:33,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 16:30:33,036 INFO L93 Difference]: Finished difference Result 200456 states and 250492 transitions. [2021-11-07 16:30:33,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 16:30:33,037 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 [2021-11-07 16:30:33,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 16:30:33,291 INFO L225 Difference]: With dead ends: 200456 [2021-11-07 16:30:33,291 INFO L226 Difference]: Without dead ends: 100844 [2021-11-07 16:30:33,475 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.37ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 16:30:33,476 INFO L933 BasicCegarLoop]: 6019 mSDtfsCounter, 5805 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.40ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5805 SdHoareTripleChecker+Valid, 6019 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.56ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.29ms IncrementalHoareTripleChecker+Time [2021-11-07 16:30:33,478 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5805 Valid, 6019 Invalid, 5 Unknown, 0 Unchecked, 6.56ms Time], IncrementalHoareTripleChecker [2 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 6.29ms Time] [2021-11-07 16:30:33,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100844 states.