./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 c36dfa3b 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-c36dfa3 [2021-11-04 08:56:34,359 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-04 08:56:34,361 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-04 08:56:34,395 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-04 08:56:34,396 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-04 08:56:34,398 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-04 08:56:34,400 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-04 08:56:34,402 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-04 08:56:34,403 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-04 08:56:34,407 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-04 08:56:34,407 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-04 08:56:34,408 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-04 08:56:34,409 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-04 08:56:34,411 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-04 08:56:34,412 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-04 08:56:34,417 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-04 08:56:34,417 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-04 08:56:34,418 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-04 08:56:34,420 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-04 08:56:34,424 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-04 08:56:34,425 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-04 08:56:34,426 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-04 08:56:34,427 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-04 08:56:34,428 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-04 08:56:34,430 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-04 08:56:34,430 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-04 08:56:34,430 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-04 08:56:34,432 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-04 08:56:34,432 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-04 08:56:34,433 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-04 08:56:34,433 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-04 08:56:34,434 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-04 08:56:34,435 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-04 08:56:34,436 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-04 08:56:34,437 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-04 08:56:34,437 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-04 08:56:34,437 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-04 08:56:34,437 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-04 08:56:34,438 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-04 08:56:34,438 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-04 08:56:34,439 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-04 08:56:34,439 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-04 08:56:34,466 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-04 08:56:34,467 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-04 08:56:34,467 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-04 08:56:34,467 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-04 08:56:34,468 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-04 08:56:34,468 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-04 08:56:34,468 INFO L138 SettingsManager]: * Use SBE=true [2021-11-04 08:56:34,469 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-04 08:56:34,469 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-04 08:56:34,469 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-04 08:56:34,469 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-04 08:56:34,470 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-04 08:56:34,470 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-04 08:56:34,470 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-04 08:56:34,470 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-04 08:56:34,470 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-04 08:56:34,470 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-04 08:56:34,471 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-04 08:56:34,471 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-04 08:56:34,471 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 08:56:34,471 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-04 08:56:34,471 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-04 08:56:34,471 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-04 08:56:34,471 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-04 08:56:34,472 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-04 08:56:34,472 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-04 08:56:34,472 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-04 08:56:34,472 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-04 08:56:34,472 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-04 08:56:34,472 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 24e26672720ca570553d18d605e2ce47cd111ea61f1f4153430b6ee115172355 [2021-11-04 08:56:34,671 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-04 08:56:34,685 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-04 08:56:34,687 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-04 08:56:34,688 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-04 08:56:34,689 INFO L275 PluginConnector]: CDTParser initialized [2021-11-04 08:56:34,690 INFO L432 ainManager$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 [2021-11-04 08:56:34,746 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c88625314/07f3433fd31644268cf0c94bd736d2e1/FLAGe4fd9f4a5 [2021-11-04 08:56:35,441 INFO L306 CDTParser]: Found 1 translation units. [2021-11-04 08:56:35,441 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 [2021-11-04 08:56:35,494 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c88625314/07f3433fd31644268cf0c94bd736d2e1/FLAGe4fd9f4a5 [2021-11-04 08:56:35,973 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c88625314/07f3433fd31644268cf0c94bd736d2e1 [2021-11-04 08:56:35,975 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-04 08:56:35,977 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-04 08:56:35,992 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-04 08:56:35,993 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-04 08:56:36,004 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-04 08:56:36,005 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 08:56:35" (1/1) ... [2021-11-04 08:56:36,005 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@358ffa6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:56:36, skipping insertion in model container [2021-11-04 08:56:36,006 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 08:56:35" (1/1) ... [2021-11-04 08:56:36,011 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-04 08:56:36,147 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-04 08:56:38,770 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] [2021-11-04 08:56:38,772 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] [2021-11-04 08:56:38,788 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 08:56:38,849 INFO L203 MainTranslator]: Completed pre-run [2021-11-04 08:56:39,330 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] [2021-11-04 08:56:39,331 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] [2021-11-04 08:56:39,336 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 08:56:39,479 INFO L208 MainTranslator]: Completed translation [2021-11-04 08:56:39,480 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:56:39 WrapperNode [2021-11-04 08:56:39,480 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-04 08:56:39,481 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-04 08:56:39,481 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-04 08:56:39,481 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-04 08:56:39,486 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:56:39" (1/1) ... [2021-11-04 08:56:39,585 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:56:39" (1/1) ... [2021-11-04 08:56:40,184 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-04 08:56:40,186 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-04 08:56:40,186 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-04 08:56:40,186 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-04 08:56:40,192 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:56:39" (1/1) ... [2021-11-04 08:56:40,192 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:56:39" (1/1) ... [2021-11-04 08:56:40,321 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:56:39" (1/1) ... [2021-11-04 08:56:40,322 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:56:39" (1/1) ... [2021-11-04 08:56:40,710 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:56:39" (1/1) ... [2021-11-04 08:56:40,774 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:56:39" (1/1) ... [2021-11-04 08:56:40,829 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:56:39" (1/1) ... [2021-11-04 08:56:40,923 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-04 08:56:40,925 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-04 08:56:40,925 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-04 08:56:40,925 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-04 08:56:40,926 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:56:39" (1/1) ... [2021-11-04 08:56:40,931 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 08:56:40,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-04 08:56:40,946 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) [2021-11-04 08:56:40,986 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 [2021-11-04 08:56:40,996 INFO L130 BoogieDeclarations]: Found specification of procedure video_open [2021-11-04 08:56:40,997 INFO L138 BoogieDeclarations]: Found implementation of procedure video_open [2021-11-04 08:56:40,998 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-04 08:56:40,998 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_audio_thread [2021-11-04 08:56:40,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-04 08:56:40,998 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-04 08:56:40,998 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_set_freq [2021-11-04 08:56:40,998 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_set_freq [2021-11-04 08:56:40,998 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-04 08:56:40,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-04 08:56:40,999 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-04 08:56:40,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-04 08:56:40,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-04 08:56:40,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-04 08:56:40,999 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-04 08:56:40,999 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-04 08:56:40,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-04 08:56:40,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-04 08:56:40,999 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-04 08:56:41,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-04 08:56:41,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-04 08:57:12,330 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#4: ldv_switch_1_#res := 0; [2021-11-04 08:57:12,330 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-04 08:57:12,330 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2021-11-04 08:57:12,330 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#2: ldv_switch_2_#res := 0; [2021-11-04 08:57:12,330 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#3: ldv_switch_2_#res := 0; [2021-11-04 08:57:12,331 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#4: ldv_switch_2_#res := 0; [2021-11-04 08:57:12,331 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-04 08:57:12,331 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#3: ldv_switch_0_#res := 0; [2021-11-04 08:57:12,331 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-04 08:57:12,332 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0; [2021-11-04 08:57:12,332 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-04 08:57:12,332 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-04 08:57:12,575 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-04 08:57:12,575 INFO L299 CfgBuilder]: Removed 5383 assume(true) statements. [2021-11-04 08:57:12,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 08:57:12 BoogieIcfgContainer [2021-11-04 08:57:12,579 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-04 08:57:12,580 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-04 08:57:12,580 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-04 08:57:12,582 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-04 08:57:12,583 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.11 08:56:35" (1/3) ... [2021-11-04 08:57:12,583 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b003286 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 08:57:12, skipping insertion in model container [2021-11-04 08:57:12,583 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:56:39" (2/3) ... [2021-11-04 08:57:12,583 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b003286 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 08:57:12, skipping insertion in model container [2021-11-04 08:57:12,584 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 08:57:12" (3/3) ... [2021-11-04 08:57:12,584 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-pci-cx88-cx8800.cil.i [2021-11-04 08:57:12,587 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-04 08:57:12,587 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-04 08:57:12,629 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-04 08:57:12,633 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 [2021-11-04 08:57:12,633 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-04 08:57:12,680 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) [2021-11-04 08:57:12,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2021-11-04 08:57:12,695 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 08:57:12,695 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] [2021-11-04 08:57:12,696 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] === [2021-11-04 08:57:12,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 08:57:12,699 INFO L85 PathProgramCache]: Analyzing trace with hash 658504876, now seen corresponding path program 1 times [2021-11-04 08:57:12,705 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 08:57:12,705 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929252827] [2021-11-04 08:57:12,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 08:57:12,706 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 08:57:13,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 08:57:13,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 08:57:13,507 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 08:57:13,507 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929252827] [2021-11-04 08:57:13,508 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929252827] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 08:57:13,508 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 08:57:13,508 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 08:57:13,509 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172399740] [2021-11-04 08:57:13,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 08:57:13,512 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 08:57:13,512 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 08:57:13,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 08:57:13,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 08:57:13,537 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) [2021-11-04 08:57:15,731 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:58:00,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 08:58:00,980 INFO L93 Difference]: Finished difference Result 14189 states and 18569 transitions. [2021-11-04 08:58:00,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 08:58:00,982 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 [2021-11-04 08:58:00,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 08:58:01,018 INFO L225 Difference]: With dead ends: 14189 [2021-11-04 08:58:01,018 INFO L226 Difference]: Without dead ends: 8440 [2021-11-04 08:58:01,041 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.94ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 08:58:01,044 INFO L933 BasicCegarLoop]: 525 mSDtfsCounter, 5042 mSDsluCounter, 6860 mSDsCounter, 0 mSdLazyCounter, 13661 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 42850.08ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5042 SdHoareTripleChecker+Valid, 999 SdHoareTripleChecker+Invalid, 13675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 103.32ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 13661 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 46141.46ms IncrementalHoareTripleChecker+Time [2021-11-04 08:58:01,044 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5042 Valid, 999 Invalid, 13675 Unknown, 0 Unchecked, 103.32ms Time], IncrementalHoareTripleChecker [13 Valid, 13661 Invalid, 1 Unknown, 0 Unchecked, 46141.46ms Time] [2021-11-04 08:58:01,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8440 states. [2021-11-04 08:58:01,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8440 to 8426. [2021-11-04 08:58:01,224 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) [2021-11-04 08:58:01,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8426 states to 8426 states and 10454 transitions. [2021-11-04 08:58:01,261 INFO L78 Accepts]: Start accepts. Automaton has 8426 states and 10454 transitions. Word has length 176 [2021-11-04 08:58:01,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 08:58:01,264 INFO L470 AbstractCegarLoop]: Abstraction has 8426 states and 10454 transitions. [2021-11-04 08:58:01,264 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) [2021-11-04 08:58:01,266 INFO L276 IsEmpty]: Start isEmpty. Operand 8426 states and 10454 transitions. [2021-11-04 08:58:01,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2021-11-04 08:58:01,275 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 08:58:01,276 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] [2021-11-04 08:58:01,276 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-04 08:58:01,276 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] === [2021-11-04 08:58:01,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 08:58:01,278 INFO L85 PathProgramCache]: Analyzing trace with hash 1394049775, now seen corresponding path program 1 times [2021-11-04 08:58:01,278 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 08:58:01,279 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836999385] [2021-11-04 08:58:01,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 08:58:01,279 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 08:58:01,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 08:58:01,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 08:58:01,694 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 08:58:01,694 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836999385] [2021-11-04 08:58:01,694 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836999385] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 08:58:01,694 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 08:58:01,695 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 08:58:01,695 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969399775] [2021-11-04 08:58:01,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 08:58:01,696 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 08:58:01,696 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 08:58:01,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 08:58:01,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 08:58:01,697 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) [2021-11-04 08:58:03,792 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:58:42,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 08:58:42,368 INFO L93 Difference]: Finished difference Result 23000 states and 28711 transitions. [2021-11-04 08:58:42,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 08:58:42,370 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 [2021-11-04 08:58:42,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 08:58:42,433 INFO L225 Difference]: With dead ends: 23000 [2021-11-04 08:58:42,434 INFO L226 Difference]: Without dead ends: 14970 [2021-11-04 08:58:42,461 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.73ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 08:58:42,463 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 4669 mSDsluCounter, 5975 mSDsCounter, 0 mSdLazyCounter, 12447 mSolverCounterSat, 17 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36706.41ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4669 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 12465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 45.10ms SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 12447 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39779.49ms IncrementalHoareTripleChecker+Time [2021-11-04 08:58:42,463 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4669 Valid, 75 Invalid, 12465 Unknown, 0 Unchecked, 45.10ms Time], IncrementalHoareTripleChecker [17 Valid, 12447 Invalid, 1 Unknown, 0 Unchecked, 39779.49ms Time] [2021-11-04 08:58:42,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14970 states. [2021-11-04 08:58:42,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14970 to 14958. [2021-11-04 08:58:42,734 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) [2021-11-04 08:58:42,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14958 states to 14958 states and 18660 transitions. [2021-11-04 08:58:42,771 INFO L78 Accepts]: Start accepts. Automaton has 14958 states and 18660 transitions. Word has length 179 [2021-11-04 08:58:42,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 08:58:42,773 INFO L470 AbstractCegarLoop]: Abstraction has 14958 states and 18660 transitions. [2021-11-04 08:58:42,773 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) [2021-11-04 08:58:42,773 INFO L276 IsEmpty]: Start isEmpty. Operand 14958 states and 18660 transitions. [2021-11-04 08:58:42,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2021-11-04 08:58:42,778 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 08:58:42,778 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] [2021-11-04 08:58:42,778 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-04 08:58:42,779 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] === [2021-11-04 08:58:42,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 08:58:42,779 INFO L85 PathProgramCache]: Analyzing trace with hash -878768903, now seen corresponding path program 1 times [2021-11-04 08:58:42,779 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 08:58:42,780 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497026793] [2021-11-04 08:58:42,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 08:58:42,780 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 08:58:42,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 08:58:43,193 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 08:58:43,193 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 08:58:43,193 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497026793] [2021-11-04 08:58:43,194 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497026793] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 08:58:43,194 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 08:58:43,196 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 08:58:43,196 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66817311] [2021-11-04 08:58:43,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 08:58:43,197 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 08:58:43,198 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 08:58:43,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 08:58:43,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 08:58:43,199 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) [2021-11-04 08:58:45,293 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:59:25,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 08:59:25,062 INFO L93 Difference]: Finished difference Result 32291 states and 40354 transitions. [2021-11-04 08:59:25,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 08:59:25,062 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 [2021-11-04 08:59:25,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 08:59:25,158 INFO L225 Difference]: With dead ends: 32291 [2021-11-04 08:59:25,159 INFO L226 Difference]: Without dead ends: 17729 [2021-11-04 08:59:25,189 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.62ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 08:59:25,192 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 3483 mSDsluCounter, 5977 mSDsCounter, 0 mSdLazyCounter, 12426 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37602.62ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3483 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 12435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 49.52ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 12426 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40930.74ms IncrementalHoareTripleChecker+Time [2021-11-04 08:59:25,195 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3483 Valid, 70 Invalid, 12435 Unknown, 0 Unchecked, 49.52ms Time], IncrementalHoareTripleChecker [8 Valid, 12426 Invalid, 1 Unknown, 0 Unchecked, 40930.74ms Time] [2021-11-04 08:59:25,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17729 states. [2021-11-04 08:59:25,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17729 to 17725. [2021-11-04 08:59:25,465 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) [2021-11-04 08:59:25,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17725 states to 17725 states and 22129 transitions. [2021-11-04 08:59:25,496 INFO L78 Accepts]: Start accepts. Automaton has 17725 states and 22129 transitions. Word has length 193 [2021-11-04 08:59:25,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 08:59:25,496 INFO L470 AbstractCegarLoop]: Abstraction has 17725 states and 22129 transitions. [2021-11-04 08:59:25,497 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) [2021-11-04 08:59:25,497 INFO L276 IsEmpty]: Start isEmpty. Operand 17725 states and 22129 transitions. [2021-11-04 08:59:25,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2021-11-04 08:59:25,500 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 08:59:25,501 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] [2021-11-04 08:59:25,501 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-04 08:59:25,501 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] === [2021-11-04 08:59:25,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 08:59:25,502 INFO L85 PathProgramCache]: Analyzing trace with hash 2086883259, now seen corresponding path program 1 times [2021-11-04 08:59:25,502 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 08:59:25,502 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607358021] [2021-11-04 08:59:25,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 08:59:25,502 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 08:59:25,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 08:59:25,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 08:59:25,829 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 08:59:25,829 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607358021] [2021-11-04 08:59:25,831 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607358021] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 08:59:25,831 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 08:59:25,831 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 08:59:25,831 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037912127] [2021-11-04 08:59:25,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 08:59:25,832 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 08:59:25,832 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 08:59:25,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 08:59:25,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 08:59:25,832 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) [2021-11-04 08:59:27,926 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:00:15,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 09:00:15,511 INFO L93 Difference]: Finished difference Result 42356 states and 52874 transitions. [2021-11-04 09:00:15,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 09:00:15,512 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 [2021-11-04 09:00:15,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 09:00:15,566 INFO L225 Difference]: With dead ends: 42356 [2021-11-04 09:00:15,567 INFO L226 Difference]: Without dead ends: 25027 [2021-11-04 09:00:15,596 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.02ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 09:00:15,598 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 4328 mSDsluCounter, 5900 mSDsCounter, 0 mSdLazyCounter, 13734 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 44024.74ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4328 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 13748 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 57.76ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 13734 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 48436.68ms IncrementalHoareTripleChecker+Time [2021-11-04 09:00:15,599 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4328 Valid, 79 Invalid, 13748 Unknown, 0 Unchecked, 57.76ms Time], IncrementalHoareTripleChecker [13 Valid, 13734 Invalid, 1 Unknown, 0 Unchecked, 48436.68ms Time] [2021-11-04 09:00:15,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25027 states. [2021-11-04 09:00:15,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25027 to 25009. [2021-11-04 09:00:15,952 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) [2021-11-04 09:00:16,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25009 states to 25009 states and 31125 transitions. [2021-11-04 09:00:16,002 INFO L78 Accepts]: Start accepts. Automaton has 25009 states and 31125 transitions. Word has length 198 [2021-11-04 09:00:16,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 09:00:16,002 INFO L470 AbstractCegarLoop]: Abstraction has 25009 states and 31125 transitions. [2021-11-04 09:00:16,002 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) [2021-11-04 09:00:16,002 INFO L276 IsEmpty]: Start isEmpty. Operand 25009 states and 31125 transitions. [2021-11-04 09:00:16,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2021-11-04 09:00:16,008 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 09:00:16,008 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] [2021-11-04 09:00:16,008 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-04 09:00:16,009 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] === [2021-11-04 09:00:16,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 09:00:16,009 INFO L85 PathProgramCache]: Analyzing trace with hash -1241698348, now seen corresponding path program 1 times [2021-11-04 09:00:16,009 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 09:00:16,009 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787939066] [2021-11-04 09:00:16,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 09:00:16,010 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 09:00:16,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 09:00:16,398 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 09:00:16,399 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 09:00:16,399 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787939066] [2021-11-04 09:00:16,399 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787939066] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 09:00:16,400 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 09:00:16,401 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 09:00:16,402 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053496701] [2021-11-04 09:00:16,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 09:00:16,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 09:00:16,402 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 09:00:16,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 09:00:16,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 09:00:16,403 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) [2021-11-04 09:00:18,669 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:01:20,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 09:01:20,630 INFO L93 Difference]: Finished difference Result 58956 states and 73578 transitions. [2021-11-04 09:01:20,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 09:01:20,631 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 [2021-11-04 09:01:20,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 09:01:20,710 INFO L225 Difference]: With dead ends: 58956 [2021-11-04 09:01:20,711 INFO L226 Difference]: Without dead ends: 35179 [2021-11-04 09:01:20,762 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.26ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 09:01:20,765 INFO L933 BasicCegarLoop]: 58 mSDtfsCounter, 4672 mSDsluCounter, 5960 mSDsCounter, 0 mSdLazyCounter, 16642 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 56780.12ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4672 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 16658 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 75.79ms SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 16642 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 62783.69ms IncrementalHoareTripleChecker+Time [2021-11-04 09:01:20,765 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4672 Valid, 88 Invalid, 16658 Unknown, 0 Unchecked, 75.79ms Time], IncrementalHoareTripleChecker [15 Valid, 16642 Invalid, 1 Unknown, 0 Unchecked, 62783.69ms Time] [2021-11-04 09:01:20,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35179 states. [2021-11-04 09:01:21,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35179 to 35159. [2021-11-04 09:01:21,332 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) [2021-11-04 09:01:21,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35159 states to 35159 states and 43844 transitions. [2021-11-04 09:01:21,399 INFO L78 Accepts]: Start accepts. Automaton has 35159 states and 43844 transitions. Word has length 215 [2021-11-04 09:01:21,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 09:01:21,400 INFO L470 AbstractCegarLoop]: Abstraction has 35159 states and 43844 transitions. [2021-11-04 09:01:21,400 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) [2021-11-04 09:01:21,401 INFO L276 IsEmpty]: Start isEmpty. Operand 35159 states and 43844 transitions. [2021-11-04 09:01:21,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2021-11-04 09:01:21,412 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 09:01:21,413 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] [2021-11-04 09:01:21,413 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-04 09:01:21,413 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] === [2021-11-04 09:01:21,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 09:01:21,414 INFO L85 PathProgramCache]: Analyzing trace with hash 1337708022, now seen corresponding path program 1 times [2021-11-04 09:01:21,415 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 09:01:21,415 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769704080] [2021-11-04 09:01:21,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 09:01:21,415 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 09:01:21,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 09:01:22,018 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 09:01:22,018 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 09:01:22,018 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769704080] [2021-11-04 09:01:22,018 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769704080] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 09:01:22,018 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 09:01:22,018 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 09:01:22,018 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029950961] [2021-11-04 09:01:22,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 09:01:22,019 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 09:01:22,019 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 09:01:22,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 09:01:22,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 09:01:22,019 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) [2021-11-04 09:01:24,138 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:02:24,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 09:02:24,996 INFO L93 Difference]: Finished difference Result 102423 states and 127956 transitions. [2021-11-04 09:02:24,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 09:02:24,996 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 [2021-11-04 09:02:24,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 09:02:25,164 INFO L225 Difference]: With dead ends: 102423 [2021-11-04 09:02:25,165 INFO L226 Difference]: Without dead ends: 68496 [2021-11-04 09:02:25,245 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.84ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 09:02:25,247 INFO L933 BasicCegarLoop]: 58 mSDtfsCounter, 5508 mSDsluCounter, 5996 mSDsCounter, 0 mSdLazyCounter, 16134 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 54639.59ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5508 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 16142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 72.60ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 16134 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 61133.49ms IncrementalHoareTripleChecker+Time [2021-11-04 09:02:25,247 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5508 Valid, 88 Invalid, 16142 Unknown, 0 Unchecked, 72.60ms Time], IncrementalHoareTripleChecker [7 Valid, 16134 Invalid, 1 Unknown, 0 Unchecked, 61133.49ms Time] [2021-11-04 09:02:25,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68496 states. [2021-11-04 09:02:26,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68496 to 68490. [2021-11-04 09:02:26,556 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) [2021-11-04 09:02:26,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68490 states to 68490 states and 85494 transitions. [2021-11-04 09:02:26,704 INFO L78 Accepts]: Start accepts. Automaton has 68490 states and 85494 transitions. Word has length 226 [2021-11-04 09:02:26,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 09:02:26,706 INFO L470 AbstractCegarLoop]: Abstraction has 68490 states and 85494 transitions. [2021-11-04 09:02:26,706 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) [2021-11-04 09:02:26,706 INFO L276 IsEmpty]: Start isEmpty. Operand 68490 states and 85494 transitions. [2021-11-04 09:02:26,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2021-11-04 09:02:26,722 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 09:02:26,722 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] [2021-11-04 09:02:26,723 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-04 09:02:26,723 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] === [2021-11-04 09:02:26,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 09:02:26,723 INFO L85 PathProgramCache]: Analyzing trace with hash 440314744, now seen corresponding path program 1 times [2021-11-04 09:02:26,724 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 09:02:26,724 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712663215] [2021-11-04 09:02:26,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 09:02:26,724 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 09:02:26,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 09:02:27,123 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 09:02:27,124 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 09:02:27,124 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712663215] [2021-11-04 09:02:27,124 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712663215] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 09:02:27,124 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 09:02:27,124 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 09:02:27,124 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964708181] [2021-11-04 09:02:27,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 09:02:27,125 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 09:02:27,125 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 09:02:27,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 09:02:27,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 09:02:27,126 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) [2021-11-04 09:02:29,245 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:03:35,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 09:03:35,259 INFO L93 Difference]: Finished difference Result 169097 states and 211268 transitions. [2021-11-04 09:03:35,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 09:03:35,259 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 [2021-11-04 09:03:35,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 09:03:35,558 INFO L225 Difference]: With dead ends: 169097 [2021-11-04 09:03:35,558 INFO L226 Difference]: Without dead ends: 100850 [2021-11-04 09:03:35,681 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 21.69ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 09:03:35,682 INFO L933 BasicCegarLoop]: 60 mSDtfsCounter, 5504 mSDsluCounter, 6000 mSDsCounter, 0 mSdLazyCounter, 17484 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 58093.69ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5504 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 17492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 72.10ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 17484 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 65578.11ms IncrementalHoareTripleChecker+Time [2021-11-04 09:03:35,682 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5504 Valid, 90 Invalid, 17492 Unknown, 0 Unchecked, 72.10ms Time], IncrementalHoareTripleChecker [7 Valid, 17484 Invalid, 1 Unknown, 0 Unchecked, 65578.11ms Time] [2021-11-04 09:03:35,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100850 states. [2021-11-04 09:03:37,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100850 to 100844. [2021-11-04 09:03:37,625 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) [2021-11-04 09:03:37,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100844 states to 100844 states and 125961 transitions. [2021-11-04 09:03:37,822 INFO L78 Accepts]: Start accepts. Automaton has 100844 states and 125961 transitions. Word has length 226 [2021-11-04 09:03:37,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 09:03:37,822 INFO L470 AbstractCegarLoop]: Abstraction has 100844 states and 125961 transitions. [2021-11-04 09:03:37,822 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) [2021-11-04 09:03:37,823 INFO L276 IsEmpty]: Start isEmpty. Operand 100844 states and 125961 transitions. [2021-11-04 09:03:37,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2021-11-04 09:03:37,838 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 09:03:37,838 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] [2021-11-04 09:03:37,838 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-04 09:03:37,838 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] === [2021-11-04 09:03:37,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 09:03:37,839 INFO L85 PathProgramCache]: Analyzing trace with hash 1380853428, now seen corresponding path program 1 times [2021-11-04 09:03:37,839 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 09:03:37,840 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072909584] [2021-11-04 09:03:37,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 09:03:37,842 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 09:03:38,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 09:03:38,418 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 6 proven. 17 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-11-04 09:03:38,418 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 09:03:38,418 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072909584] [2021-11-04 09:03:38,418 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072909584] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-04 09:03:38,419 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1226361672] [2021-11-04 09:03:38,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 09:03:38,419 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-04 09:03:38,419 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-04 09:03:38,420 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) [2021-11-04 09:03:38,423 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-04 09:03:40,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 09:03:40,687 INFO L263 TraceCheckSpWp]: Trace formula consists of 8653 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-04 09:03:40,716 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-04 09:03:42,537 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2021-11-04 09:03:42,538 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-04 09:03:42,538 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1226361672] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 09:03:42,538 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-04 09:03:42,538 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2021-11-04 09:03:42,538 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959792053] [2021-11-04 09:03:42,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 09:03:42,542 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 09:03:42,543 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 09:03:42,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 09:03:42,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-04 09:03:42,543 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) [2021-11-04 09:03:44,644 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:04:04,875 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-04 09:04:41,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 09:04:41,546 INFO L93 Difference]: Finished difference Result 300068 states and 375260 transitions. [2021-11-04 09:04:41,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 09:04:41,547 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 [2021-11-04 09:04:41,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 09:04:42,356 INFO L225 Difference]: With dead ends: 300068 [2021-11-04 09:04:42,356 INFO L226 Difference]: Without dead ends: 200456 [2021-11-04 09:04:42,593 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 245 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 53.11ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-04 09:04:42,594 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 5812 mSDsluCounter, 5579 mSDsCounter, 0 mSdLazyCounter, 11555 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 47506.29ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5812 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 11559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 48.83ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11555 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 54637.98ms IncrementalHoareTripleChecker+Time [2021-11-04 09:04:42,595 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5812 Valid, 75 Invalid, 11559 Unknown, 0 Unchecked, 48.83ms Time], IncrementalHoareTripleChecker [2 Valid, 11555 Invalid, 2 Unknown, 0 Unchecked, 54637.98ms Time] [2021-11-04 09:04:42,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200456 states. [2021-11-04 09:04:46,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200456 to 200450. [2021-11-04 09:04:46,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200450 states, 199589 states have (on average 1.248169989328069) internal successors, (249121), 199591 states have internal predecessors, (249121), 630 states have call successors, (630), 228 states have call predecessors, (630), 228 states have return successors, (630), 630 states have call predecessors, (630), 630 states have call successors, (630) [2021-11-04 09:04:47,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200450 states to 200450 states and 250381 transitions. [2021-11-04 09:04:47,646 INFO L78 Accepts]: Start accepts. Automaton has 200450 states and 250381 transitions. Word has length 244 [2021-11-04 09:04:47,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 09:04:47,647 INFO L470 AbstractCegarLoop]: Abstraction has 200450 states and 250381 transitions. [2021-11-04 09:04:47,647 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) [2021-11-04 09:04:47,647 INFO L276 IsEmpty]: Start isEmpty. Operand 200450 states and 250381 transitions. [2021-11-04 09:04:47,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2021-11-04 09:04:47,662 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 09:04:47,662 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] [2021-11-04 09:04:47,714 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-04 09:04:47,877 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 [2021-11-04 09:04:47,878 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] === [2021-11-04 09:04:47,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 09:04:47,879 INFO L85 PathProgramCache]: Analyzing trace with hash -142967650, now seen corresponding path program 1 times [2021-11-04 09:04:47,879 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 09:04:47,879 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510396473] [2021-11-04 09:04:47,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 09:04:47,879 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 09:04:48,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 09:04:48,521 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 6 proven. 17 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-11-04 09:04:48,521 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 09:04:48,521 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510396473] [2021-11-04 09:04:48,521 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510396473] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-04 09:04:48,521 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1132099287] [2021-11-04 09:04:48,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 09:04:48,521 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-04 09:04:48,521 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-04 09:04:48,528 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) [2021-11-04 09:04:48,567 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-04 09:04:50,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 09:04:50,827 INFO L263 TraceCheckSpWp]: Trace formula consists of 8654 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-04 09:04:50,836 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-04 09:04:52,807 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2021-11-04 09:04:52,807 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-04 09:04:52,807 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1132099287] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 09:04:52,807 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-04 09:04:52,807 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2021-11-04 09:04:52,807 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378537408] [2021-11-04 09:04:52,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 09:04:52,808 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 09:04:52,808 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 09:04:52,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 09:04:52,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-04 09:04:52,808 INFO L87 Difference]: Start difference. First operand 200450 states and 250381 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) [2021-11-04 09:04:54,945 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 [] [2021-11-04 09:05:29,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 09:05:29,808 INFO L93 Difference]: Finished difference Result 399668 states and 499923 transitions. [2021-11-04 09:05:29,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 09:05:29,809 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 [2021-11-04 09:05:29,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 09:05:30,601 INFO L225 Difference]: With dead ends: 399668 [2021-11-04 09:05:30,602 INFO L226 Difference]: Without dead ends: 200450 [2021-11-04 09:05:31,039 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 58.74ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-04 09:05:31,042 INFO L933 BasicCegarLoop]: 30 mSDtfsCounter, 5812 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5997 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26887.45ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5812 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 6000 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 30.42ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5997 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31640.24ms IncrementalHoareTripleChecker+Time [2021-11-04 09:05:31,044 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5812 Valid, 30 Invalid, 6000 Unknown, 0 Unchecked, 30.42ms Time], IncrementalHoareTripleChecker [2 Valid, 5997 Invalid, 1 Unknown, 0 Unchecked, 31640.24ms Time] [2021-11-04 09:05:31,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200450 states. [2021-11-04 09:05:35,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200450 to 200450. [2021-11-04 09:05:35,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200450 states, 199589 states have (on average 1.2474785684581815) internal successors, (248983), 199591 states have internal predecessors, (248983), 630 states have call successors, (630), 228 states have call predecessors, (630), 228 states have return successors, (630), 630 states have call predecessors, (630), 630 states have call successors, (630) [2021-11-04 09:05:36,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200450 states to 200450 states and 250243 transitions. [2021-11-04 09:05:36,239 INFO L78 Accepts]: Start accepts. Automaton has 200450 states and 250243 transitions. Word has length 245 [2021-11-04 09:05:36,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 09:05:36,240 INFO L470 AbstractCegarLoop]: Abstraction has 200450 states and 250243 transitions. [2021-11-04 09:05:36,240 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) [2021-11-04 09:05:36,241 INFO L276 IsEmpty]: Start isEmpty. Operand 200450 states and 250243 transitions. [2021-11-04 09:05:36,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2021-11-04 09:05:36,255 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 09:05:36,256 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] [2021-11-04 09:05:36,315 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-11-04 09:05:36,460 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 [2021-11-04 09:05:36,462 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] === [2021-11-04 09:05:36,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 09:05:36,462 INFO L85 PathProgramCache]: Analyzing trace with hash -136631857, now seen corresponding path program 1 times [2021-11-04 09:05:36,462 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 09:05:36,462 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476641883] [2021-11-04 09:05:36,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 09:05:36,463 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 09:05:36,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 09:05:36,918 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 6 proven. 17 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-11-04 09:05:36,918 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 09:05:36,918 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476641883] [2021-11-04 09:05:36,919 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476641883] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-04 09:05:36,919 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [134239954] [2021-11-04 09:05:36,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 09:05:36,919 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-04 09:05:36,919 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-04 09:05:36,930 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) [2021-11-04 09:05:36,931 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-04 09:05:39,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 09:05:39,383 INFO L263 TraceCheckSpWp]: Trace formula consists of 8655 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-04 09:05:39,412 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-04 09:05:41,335 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2021-11-04 09:05:41,336 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-04 09:05:41,336 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [134239954] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 09:05:41,336 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-04 09:05:41,336 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2021-11-04 09:05:41,336 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611282083] [2021-11-04 09:05:41,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 09:05:41,338 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 09:05:41,338 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 09:05:41,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 09:05:41,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-04 09:05:41,339 INFO L87 Difference]: Start difference. First operand 200450 states and 250243 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) [2021-11-04 09:05:43,470 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 [] [2021-11-04 09:06:05,974 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-04 09:06:10,433 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-04 09:06:36,169 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-04 09:06:51,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 09:06:51,594 INFO L93 Difference]: Finished difference Result 499280 states and 623686 transitions. [2021-11-04 09:06:51,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 09:06:51,594 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 [2021-11-04 09:06:51,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 09:06:52,349 INFO L225 Difference]: With dead ends: 499280 [2021-11-04 09:06:52,350 INFO L226 Difference]: Without dead ends: 300062 [2021-11-04 09:06:52,905 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 57.02ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-04 09:06:52,906 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 5803 mSDsluCounter, 5575 mSDsCounter, 0 mSdLazyCounter, 11547 mSolverCounterSat, 2 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 54237.71ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5803 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 11553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 50.52ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11547 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 62960.68ms IncrementalHoareTripleChecker+Time [2021-11-04 09:06:52,906 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5803 Valid, 75 Invalid, 11553 Unknown, 0 Unchecked, 50.52ms Time], IncrementalHoareTripleChecker [2 Valid, 11547 Invalid, 4 Unknown, 0 Unchecked, 62960.68ms Time] [2021-11-04 09:06:53,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300062 states. [2021-11-04 09:06:58,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300062 to 300056. [2021-11-04 09:06:59,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300056 states, 298766 states have (on average 1.2472470093651888) internal successors, (372635), 298768 states have internal predecessors, (372635), 945 states have call successors, (945), 342 states have call predecessors, (945), 342 states have return successors, (945), 945 states have call predecessors, (945), 945 states have call successors, (945) [2021-11-04 09:07:00,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300056 states to 300056 states and 374525 transitions. [2021-11-04 09:07:00,490 INFO L78 Accepts]: Start accepts. Automaton has 300056 states and 374525 transitions. Word has length 246 [2021-11-04 09:07:00,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 09:07:00,491 INFO L470 AbstractCegarLoop]: Abstraction has 300056 states and 374525 transitions. [2021-11-04 09:07:00,491 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 2 states have internal predecessors, (220), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 09:07:00,491 INFO L276 IsEmpty]: Start isEmpty. Operand 300056 states and 374525 transitions. [2021-11-04 09:07:00,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2021-11-04 09:07:00,504 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 09:07:00,504 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, 1] [2021-11-04 09:07:00,536 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-04 09:07:00,723 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-04 09:07:00,724 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION === [video_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-04 09:07:00,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 09:07:00,724 INFO L85 PathProgramCache]: Analyzing trace with hash 59926681, now seen corresponding path program 1 times [2021-11-04 09:07:00,724 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 09:07:00,725 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829897046] [2021-11-04 09:07:00,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 09:07:00,725 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 09:07:00,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 09:07:01,092 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 6 proven. 17 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-11-04 09:07:01,092 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 09:07:01,092 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829897046] [2021-11-04 09:07:01,092 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829897046] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-04 09:07:01,092 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1399562966] [2021-11-04 09:07:01,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 09:07:01,092 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-04 09:07:01,092 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-04 09:07:01,094 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-04 09:07:01,095 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-04 09:07:03,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 09:07:03,619 INFO L263 TraceCheckSpWp]: Trace formula consists of 8656 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-04 09:07:03,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-04 09:07:05,452 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2021-11-04 09:07:05,452 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-04 09:07:05,452 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1399562966] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 09:07:05,452 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-04 09:07:05,453 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2021-11-04 09:07:05,453 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200777460] [2021-11-04 09:07:05,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 09:07:05,453 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 09:07:05,453 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 09:07:05,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 09:07:05,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-04 09:07:05,454 INFO L87 Difference]: Start difference. First operand 300056 states and 374525 transitions. Second operand has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 2 states have internal predecessors, (221), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-04 09:07:07,781 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:07:21,645 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers []