/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-pci-cx88-cx8800.cil.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 15:24:07,817 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 15:24:07,819 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 15:24:07,854 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 15:24:07,855 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 15:24:07,856 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 15:24:07,858 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 15:24:07,860 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 15:24:07,862 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 15:24:07,864 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 15:24:07,865 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 15:24:07,866 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 15:24:07,867 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 15:24:07,868 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 15:24:07,869 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 15:24:07,884 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 15:24:07,886 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 15:24:07,887 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 15:24:07,889 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 15:24:07,891 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 15:24:07,893 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 15:24:07,895 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 15:24:07,896 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 15:24:07,897 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 15:24:07,901 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 15:24:07,902 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 15:24:07,902 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 15:24:07,906 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 15:24:07,908 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 15:24:07,910 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 15:24:07,911 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 15:24:07,913 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 15:24:07,913 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 15:24:07,914 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 15:24:07,915 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 15:24:07,916 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 15:24:07,918 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 15:24:07,918 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 15:24:07,918 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 15:24:07,919 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 15:24:07,921 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 15:24:07,922 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 15:24:07,979 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 15:24:07,980 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 15:24:07,982 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 15:24:07,982 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 15:24:07,982 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 15:24:07,983 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 15:24:07,983 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 15:24:07,983 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 15:24:07,983 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 15:24:07,984 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 15:24:07,985 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 15:24:07,985 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 15:24:07,985 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 15:24:07,985 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 15:24:07,986 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 15:24:07,986 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 15:24:07,986 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 15:24:07,986 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 15:24:07,987 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 15:24:07,987 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 15:24:07,987 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 15:24:07,988 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 15:24:07,988 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 15:24:07,988 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 15:24:07,988 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 15:24:07,989 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 15:24:08,394 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 15:24:08,422 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 15:24:08,425 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 15:24:08,426 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 15:24:08,429 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 15:24:08,430 INFO L432 ainManager$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 [2020-12-22 15:24:08,511 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c09ebb34/a8fe62c7b19148f29e2de1242db2f00e/FLAG8be9ca1ec [2020-12-22 15:24:09,756 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 15:24:09,757 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 [2020-12-22 15:24:09,854 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c09ebb34/a8fe62c7b19148f29e2de1242db2f00e/FLAG8be9ca1ec [2020-12-22 15:24:09,935 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c09ebb34/a8fe62c7b19148f29e2de1242db2f00e [2020-12-22 15:24:09,938 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 15:24:09,940 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 15:24:09,948 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 15:24:09,948 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 15:24:09,954 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 15:24:09,956 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:24:09" (1/1) ... [2020-12-22 15:24:09,958 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@139f0588 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:24:09, skipping insertion in model container [2020-12-22 15:24:09,958 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:24:09" (1/1) ... [2020-12-22 15:24:09,968 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 15:24:10,422 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 15:24:15,380 WARN L226 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] [2020-12-22 15:24:15,384 WARN L226 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] [2020-12-22 15:24:15,414 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 15:24:15,516 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 15:24:16,382 WARN L226 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] [2020-12-22 15:24:16,383 WARN L226 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] [2020-12-22 15:24:16,393 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 15:24:17,152 INFO L208 MainTranslator]: Completed translation [2020-12-22 15:24:17,152 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:24:17 WrapperNode [2020-12-22 15:24:17,153 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 15:24:17,154 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 15:24:17,154 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 15:24:17,154 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 15:24:17,163 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:24:17" (1/1) ... [2020-12-22 15:24:17,344 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:24:17" (1/1) ... [2020-12-22 15:24:18,396 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 15:24:18,398 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 15:24:18,399 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 15:24:18,399 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 15:24:18,409 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:24:17" (1/1) ... [2020-12-22 15:24:18,409 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:24:17" (1/1) ... [2020-12-22 15:24:18,643 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:24:17" (1/1) ... [2020-12-22 15:24:18,644 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:24:17" (1/1) ... [2020-12-22 15:24:19,266 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:24:17" (1/1) ... [2020-12-22 15:24:19,534 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:24:17" (1/1) ... [2020-12-22 15:24:19,623 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:24:17" (1/1) ... [2020-12-22 15:24:19,766 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 15:24:19,768 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 15:24:19,769 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 15:24:19,769 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 15:24:19,770 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:24:17" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 15:24:19,888 INFO L130 BoogieDeclarations]: Found specification of procedure video_open [2020-12-22 15:24:19,888 INFO L138 BoogieDeclarations]: Found implementation of procedure video_open [2020-12-22 15:24:19,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 15:24:19,889 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_audio_thread [2020-12-22 15:24:19,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-12-22 15:24:19,890 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 15:24:19,890 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_set_freq [2020-12-22 15:24:19,891 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_set_freq [2020-12-22 15:24:19,891 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-22 15:24:19,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-22 15:24:19,894 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2020-12-22 15:24:19,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2020-12-22 15:24:19,894 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 15:24:19,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 15:24:19,895 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 15:24:19,895 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-22 15:24:19,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-22 15:24:19,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 15:24:19,895 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2020-12-22 15:24:19,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2020-12-22 15:24:19,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 15:25:13,885 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#4: ldv_switch_1_#res := 0; [2020-12-22 15:25:13,885 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2020-12-22 15:25:13,886 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2020-12-22 15:25:13,886 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#2: ldv_switch_2_#res := 0; [2020-12-22 15:25:13,886 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#3: ldv_switch_2_#res := 0; [2020-12-22 15:25:13,886 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#4: ldv_switch_2_#res := 0; [2020-12-22 15:25:13,887 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2020-12-22 15:25:13,887 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#3: ldv_switch_0_#res := 0; [2020-12-22 15:25:13,887 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2020-12-22 15:25:13,888 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0; [2020-12-22 15:25:13,889 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2020-12-22 15:25:13,889 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2020-12-22 15:25:16,808 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 15:25:16,809 INFO L299 CfgBuilder]: Removed 5383 assume(true) statements. [2020-12-22 15:25:16,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:25:16 BoogieIcfgContainer [2020-12-22 15:25:16,820 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 15:25:16,822 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 15:25:16,822 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 15:25:16,826 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 15:25:16,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 03:24:09" (1/3) ... [2020-12-22 15:25:16,827 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25579e81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:25:16, skipping insertion in model container [2020-12-22 15:25:16,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:24:17" (2/3) ... [2020-12-22 15:25:16,827 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25579e81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:25:16, skipping insertion in model container [2020-12-22 15:25:16,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:25:16" (3/3) ... [2020-12-22 15:25:16,829 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-pci-cx88-cx8800.cil.i [2020-12-22 15:25:16,839 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 15:25:16,848 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-12-22 15:25:16,866 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-12-22 15:25:16,911 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 15:25:16,911 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 15:25:16,911 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 15:25:16,911 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 15:25:16,911 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 15:25:16,912 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 15:25:16,912 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 15:25:16,912 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 15:25:16,986 INFO L276 IsEmpty]: Start isEmpty. Operand 5385 states. [2020-12-22 15:25:17,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-12-22 15:25:17,017 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:25:17,018 INFO L422 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] [2020-12-22 15:25:17,019 INFO L429 AbstractCegarLoop]: === Iteration 1 === [video_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:25:17,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:25:17,025 INFO L82 PathProgramCache]: Analyzing trace with hash 658504876, now seen corresponding path program 1 times [2020-12-22 15:25:17,035 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:25:17,036 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080022491] [2020-12-22 15:25:17,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:25:18,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:25:18,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 15:25:18,703 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080022491] [2020-12-22 15:25:18,704 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:25:18,704 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:25:18,705 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563207144] [2020-12-22 15:25:18,710 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:25:18,710 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:25:18,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:25:18,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:25:18,728 INFO L87 Difference]: Start difference. First operand 5385 states. Second operand 3 states. [2020-12-22 15:25:21,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:25:21,894 INFO L93 Difference]: Finished difference Result 14189 states and 18569 transitions. [2020-12-22 15:25:21,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:25:21,897 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 176 [2020-12-22 15:25:21,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:25:21,958 INFO L225 Difference]: With dead ends: 14189 [2020-12-22 15:25:21,958 INFO L226 Difference]: Without dead ends: 8440 [2020-12-22 15:25:21,991 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:25:22,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8440 states. [2020-12-22 15:25:22,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8440 to 8426. [2020-12-22 15:25:22,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8426 states. [2020-12-22 15:25:22,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8426 states to 8426 states and 10454 transitions. [2020-12-22 15:25:22,346 INFO L78 Accepts]: Start accepts. Automaton has 8426 states and 10454 transitions. Word has length 176 [2020-12-22 15:25:22,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:25:22,350 INFO L481 AbstractCegarLoop]: Abstraction has 8426 states and 10454 transitions. [2020-12-22 15:25:22,350 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:25:22,350 INFO L276 IsEmpty]: Start isEmpty. Operand 8426 states and 10454 transitions. [2020-12-22 15:25:22,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-12-22 15:25:22,362 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:25:22,363 INFO L422 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] [2020-12-22 15:25:22,363 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 15:25:22,364 INFO L429 AbstractCegarLoop]: === Iteration 2 === [video_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:25:22,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:25:22,366 INFO L82 PathProgramCache]: Analyzing trace with hash 1394049775, now seen corresponding path program 1 times [2020-12-22 15:25:22,366 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:25:22,367 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564450941] [2020-12-22 15:25:22,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:25:22,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:25:23,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 15:25:23,309 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564450941] [2020-12-22 15:25:23,309 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:25:23,309 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:25:23,309 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003682518] [2020-12-22 15:25:23,312 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:25:23,312 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:25:23,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:25:23,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:25:23,315 INFO L87 Difference]: Start difference. First operand 8426 states and 10454 transitions. Second operand 3 states. [2020-12-22 15:25:26,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:25:26,296 INFO L93 Difference]: Finished difference Result 23000 states and 28711 transitions. [2020-12-22 15:25:26,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:25:26,297 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 179 [2020-12-22 15:25:26,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:25:26,389 INFO L225 Difference]: With dead ends: 23000 [2020-12-22 15:25:26,389 INFO L226 Difference]: Without dead ends: 14970 [2020-12-22 15:25:26,421 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:25:26,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14970 states. [2020-12-22 15:25:27,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14970 to 14958. [2020-12-22 15:25:27,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14958 states. [2020-12-22 15:25:27,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14958 states to 14958 states and 18660 transitions. [2020-12-22 15:25:27,223 INFO L78 Accepts]: Start accepts. Automaton has 14958 states and 18660 transitions. Word has length 179 [2020-12-22 15:25:27,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:25:27,224 INFO L481 AbstractCegarLoop]: Abstraction has 14958 states and 18660 transitions. [2020-12-22 15:25:27,224 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:25:27,225 INFO L276 IsEmpty]: Start isEmpty. Operand 14958 states and 18660 transitions. [2020-12-22 15:25:27,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2020-12-22 15:25:27,232 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:25:27,232 INFO L422 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] [2020-12-22 15:25:27,233 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 15:25:27,233 INFO L429 AbstractCegarLoop]: === Iteration 3 === [video_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:25:27,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:25:27,234 INFO L82 PathProgramCache]: Analyzing trace with hash -878768903, now seen corresponding path program 1 times [2020-12-22 15:25:27,234 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:25:27,234 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506715213] [2020-12-22 15:25:27,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:25:27,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:25:28,198 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 15:25:28,199 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506715213] [2020-12-22 15:25:28,199 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:25:28,199 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:25:28,199 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127072921] [2020-12-22 15:25:28,200 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:25:28,200 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:25:28,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:25:28,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:25:28,201 INFO L87 Difference]: Start difference. First operand 14958 states and 18660 transitions. Second operand 3 states. [2020-12-22 15:25:31,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:25:31,052 INFO L93 Difference]: Finished difference Result 32291 states and 40354 transitions. [2020-12-22 15:25:31,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:25:31,053 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 193 [2020-12-22 15:25:31,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:25:31,142 INFO L225 Difference]: With dead ends: 32291 [2020-12-22 15:25:31,142 INFO L226 Difference]: Without dead ends: 17729 [2020-12-22 15:25:31,198 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:25:31,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17729 states. [2020-12-22 15:25:31,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17729 to 17725. [2020-12-22 15:25:31,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17725 states. [2020-12-22 15:25:31,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17725 states to 17725 states and 22129 transitions. [2020-12-22 15:25:31,937 INFO L78 Accepts]: Start accepts. Automaton has 17725 states and 22129 transitions. Word has length 193 [2020-12-22 15:25:31,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:25:31,938 INFO L481 AbstractCegarLoop]: Abstraction has 17725 states and 22129 transitions. [2020-12-22 15:25:31,938 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:25:31,938 INFO L276 IsEmpty]: Start isEmpty. Operand 17725 states and 22129 transitions. [2020-12-22 15:25:31,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2020-12-22 15:25:31,949 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:25:31,950 INFO L422 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] [2020-12-22 15:25:31,950 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 15:25:31,950 INFO L429 AbstractCegarLoop]: === Iteration 4 === [video_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:25:31,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:25:31,951 INFO L82 PathProgramCache]: Analyzing trace with hash 2086883259, now seen corresponding path program 1 times [2020-12-22 15:25:31,951 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:25:31,952 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124285320] [2020-12-22 15:25:31,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:25:32,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:25:32,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 15:25:32,827 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124285320] [2020-12-22 15:25:32,827 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:25:32,828 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:25:32,828 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833254553] [2020-12-22 15:25:32,829 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:25:32,829 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:25:32,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:25:32,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:25:32,836 INFO L87 Difference]: Start difference. First operand 17725 states and 22129 transitions. Second operand 3 states. [2020-12-22 15:25:36,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:25:36,185 INFO L93 Difference]: Finished difference Result 42356 states and 52874 transitions. [2020-12-22 15:25:36,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:25:36,186 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 198 [2020-12-22 15:25:36,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:25:36,273 INFO L225 Difference]: With dead ends: 42356 [2020-12-22 15:25:36,274 INFO L226 Difference]: Without dead ends: 25027 [2020-12-22 15:25:36,328 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:25:36,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25027 states. [2020-12-22 15:25:36,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25027 to 25009. [2020-12-22 15:25:36,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25009 states. [2020-12-22 15:25:37,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25009 states to 25009 states and 31125 transitions. [2020-12-22 15:25:37,043 INFO L78 Accepts]: Start accepts. Automaton has 25009 states and 31125 transitions. Word has length 198 [2020-12-22 15:25:37,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:25:37,044 INFO L481 AbstractCegarLoop]: Abstraction has 25009 states and 31125 transitions. [2020-12-22 15:25:37,044 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:25:37,044 INFO L276 IsEmpty]: Start isEmpty. Operand 25009 states and 31125 transitions. [2020-12-22 15:25:37,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2020-12-22 15:25:37,053 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:25:37,053 INFO L422 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] [2020-12-22 15:25:37,054 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 15:25:37,054 INFO L429 AbstractCegarLoop]: === Iteration 5 === [video_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:25:37,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:25:37,055 INFO L82 PathProgramCache]: Analyzing trace with hash -1241698348, now seen corresponding path program 1 times [2020-12-22 15:25:37,055 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:25:37,055 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052959804] [2020-12-22 15:25:37,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:25:37,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:25:37,920 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 15:25:37,921 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052959804] [2020-12-22 15:25:37,921 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:25:37,921 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:25:37,921 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411250228] [2020-12-22 15:25:37,922 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:25:37,922 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:25:37,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:25:37,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:25:37,923 INFO L87 Difference]: Start difference. First operand 25009 states and 31125 transitions. Second operand 3 states. [2020-12-22 15:25:41,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:25:41,281 INFO L93 Difference]: Finished difference Result 58956 states and 73578 transitions. [2020-12-22 15:25:41,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:25:41,283 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 215 [2020-12-22 15:25:41,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:25:41,400 INFO L225 Difference]: With dead ends: 58956 [2020-12-22 15:25:41,400 INFO L226 Difference]: Without dead ends: 35179 [2020-12-22 15:25:41,457 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:25:41,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35179 states. [2020-12-22 15:25:42,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35179 to 35159. [2020-12-22 15:25:42,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35159 states. [2020-12-22 15:25:42,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35159 states to 35159 states and 43844 transitions. [2020-12-22 15:25:42,761 INFO L78 Accepts]: Start accepts. Automaton has 35159 states and 43844 transitions. Word has length 215 [2020-12-22 15:25:42,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:25:42,762 INFO L481 AbstractCegarLoop]: Abstraction has 35159 states and 43844 transitions. [2020-12-22 15:25:42,762 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:25:42,762 INFO L276 IsEmpty]: Start isEmpty. Operand 35159 states and 43844 transitions. [2020-12-22 15:25:42,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2020-12-22 15:25:42,776 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:25:42,777 INFO L422 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] [2020-12-22 15:25:42,777 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 15:25:42,777 INFO L429 AbstractCegarLoop]: === Iteration 6 === [video_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:25:42,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:25:42,778 INFO L82 PathProgramCache]: Analyzing trace with hash 1337708022, now seen corresponding path program 1 times [2020-12-22 15:25:42,778 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:25:42,778 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560184572] [2020-12-22 15:25:42,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:25:43,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:25:43,637 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 15:25:43,638 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560184572] [2020-12-22 15:25:43,639 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:25:43,643 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:25:43,643 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141144310] [2020-12-22 15:25:43,644 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:25:43,645 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:25:43,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:25:43,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:25:43,651 INFO L87 Difference]: Start difference. First operand 35159 states and 43844 transitions. Second operand 3 states. [2020-12-22 15:25:47,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:25:47,178 INFO L93 Difference]: Finished difference Result 102423 states and 127956 transitions. [2020-12-22 15:25:47,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:25:47,181 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 226 [2020-12-22 15:25:47,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:25:47,617 INFO L225 Difference]: With dead ends: 102423 [2020-12-22 15:25:47,617 INFO L226 Difference]: Without dead ends: 68496 [2020-12-22 15:25:47,707 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:25:47,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68496 states. [2020-12-22 15:25:49,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68496 to 68490. [2020-12-22 15:25:49,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68490 states. [2020-12-22 15:25:50,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68490 states to 68490 states and 85494 transitions. [2020-12-22 15:25:50,108 INFO L78 Accepts]: Start accepts. Automaton has 68490 states and 85494 transitions. Word has length 226 [2020-12-22 15:25:50,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:25:50,109 INFO L481 AbstractCegarLoop]: Abstraction has 68490 states and 85494 transitions. [2020-12-22 15:25:50,109 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:25:50,109 INFO L276 IsEmpty]: Start isEmpty. Operand 68490 states and 85494 transitions. [2020-12-22 15:25:50,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2020-12-22 15:25:50,124 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:25:50,124 INFO L422 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] [2020-12-22 15:25:50,125 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 15:25:50,125 INFO L429 AbstractCegarLoop]: === Iteration 7 === [video_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:25:50,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:25:50,125 INFO L82 PathProgramCache]: Analyzing trace with hash 440314744, now seen corresponding path program 1 times [2020-12-22 15:25:50,126 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:25:50,126 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627610855] [2020-12-22 15:25:50,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:25:50,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:25:50,952 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 15:25:50,953 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627610855] [2020-12-22 15:25:50,953 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:25:50,953 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:25:50,954 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927820014] [2020-12-22 15:25:50,955 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:25:50,955 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:25:50,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:25:50,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:25:50,956 INFO L87 Difference]: Start difference. First operand 68490 states and 85494 transitions. Second operand 3 states. [2020-12-22 15:25:55,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:25:55,282 INFO L93 Difference]: Finished difference Result 169097 states and 211268 transitions. [2020-12-22 15:25:55,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:25:55,283 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 226 [2020-12-22 15:25:55,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:25:55,925 INFO L225 Difference]: With dead ends: 169097 [2020-12-22 15:25:55,925 INFO L226 Difference]: Without dead ends: 100850 [2020-12-22 15:25:56,094 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:25:56,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100850 states. [2020-12-22 15:25:59,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100850 to 100844. [2020-12-22 15:25:59,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100844 states. [2020-12-22 15:25:59,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100844 states to 100844 states and 125961 transitions. [2020-12-22 15:25:59,331 INFO L78 Accepts]: Start accepts. Automaton has 100844 states and 125961 transitions. Word has length 226 [2020-12-22 15:25:59,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:25:59,332 INFO L481 AbstractCegarLoop]: Abstraction has 100844 states and 125961 transitions. [2020-12-22 15:25:59,332 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:25:59,332 INFO L276 IsEmpty]: Start isEmpty. Operand 100844 states and 125961 transitions. [2020-12-22 15:25:59,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2020-12-22 15:25:59,354 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:25:59,354 INFO L422 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] [2020-12-22 15:25:59,355 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 15:25:59,355 INFO L429 AbstractCegarLoop]: === Iteration 8 === [video_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:25:59,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:25:59,355 INFO L82 PathProgramCache]: Analyzing trace with hash 1380853428, now seen corresponding path program 1 times [2020-12-22 15:25:59,356 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:25:59,356 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376850124] [2020-12-22 15:25:59,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:25:59,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:26:00,285 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 6 proven. 17 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-12-22 15:26:00,286 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376850124] [2020-12-22 15:26:00,286 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1920409060] [2020-12-22 15:26:00,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 15:26:04,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:26:04,352 INFO L263 TraceCheckSpWp]: Trace formula consists of 8653 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-22 15:26:04,378 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 15:26:04,765 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2020-12-22 15:26:04,766 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 15:26:04,766 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2020-12-22 15:26:04,766 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584213455] [2020-12-22 15:26:04,767 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:26:04,767 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:26:04,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:26:04,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 15:26:04,768 INFO L87 Difference]: Start difference. First operand 100844 states and 125961 transitions. Second operand 3 states. [2020-12-22 15:26:07,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:26:07,254 INFO L93 Difference]: Finished difference Result 200456 states and 250768 transitions. [2020-12-22 15:26:07,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:26:07,255 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 244 [2020-12-22 15:26:07,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:26:07,631 INFO L225 Difference]: With dead ends: 200456 [2020-12-22 15:26:07,631 INFO L226 Difference]: Without dead ends: 100844 [2020-12-22 15:26:07,852 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 245 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 15:26:07,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100844 states. [2020-12-22 15:26:11,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100844 to 100844. [2020-12-22 15:26:11,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100844 states. [2020-12-22 15:26:11,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100844 states to 100844 states and 125892 transitions. [2020-12-22 15:26:11,583 INFO L78 Accepts]: Start accepts. Automaton has 100844 states and 125892 transitions. Word has length 244 [2020-12-22 15:26:11,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:26:11,583 INFO L481 AbstractCegarLoop]: Abstraction has 100844 states and 125892 transitions. [2020-12-22 15:26:11,583 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:26:11,583 INFO L276 IsEmpty]: Start isEmpty. Operand 100844 states and 125892 transitions. [2020-12-22 15:26:11,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2020-12-22 15:26:11,604 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:26:11,605 INFO L422 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] [2020-12-22 15:26:11,819 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2020-12-22 15:26:11,820 INFO L429 AbstractCegarLoop]: === Iteration 9 === [video_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:26:11,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:26:11,821 INFO L82 PathProgramCache]: Analyzing trace with hash -142967650, now seen corresponding path program 1 times [2020-12-22 15:26:11,821 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:26:11,822 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987837974] [2020-12-22 15:26:11,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:26:12,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:26:12,910 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 6 proven. 17 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-12-22 15:26:12,910 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987837974] [2020-12-22 15:26:12,910 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [559674383] [2020-12-22 15:26:12,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 15:26:16,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:26:16,770 INFO L263 TraceCheckSpWp]: Trace formula consists of 8654 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-22 15:26:16,784 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 15:26:17,102 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2020-12-22 15:26:17,102 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 15:26:17,103 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2020-12-22 15:26:17,103 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102452823] [2020-12-22 15:26:17,103 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:26:17,104 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:26:17,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:26:17,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 15:26:17,105 INFO L87 Difference]: Start difference. First operand 100844 states and 125892 transitions. Second operand 3 states. [2020-12-22 15:26:19,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:26:19,677 INFO L93 Difference]: Finished difference Result 200456 states and 250630 transitions. [2020-12-22 15:26:19,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:26:19,678 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 245 [2020-12-22 15:26:19,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:26:20,138 INFO L225 Difference]: With dead ends: 200456 [2020-12-22 15:26:20,138 INFO L226 Difference]: Without dead ends: 100844 [2020-12-22 15:26:20,360 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 15:26:20,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100844 states. [2020-12-22 15:26:23,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100844 to 100844. [2020-12-22 15:26:23,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100844 states. [2020-12-22 15:26:23,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100844 states to 100844 states and 125823 transitions. [2020-12-22 15:26:23,437 INFO L78 Accepts]: Start accepts. Automaton has 100844 states and 125823 transitions. Word has length 245 [2020-12-22 15:26:23,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:26:23,437 INFO L481 AbstractCegarLoop]: Abstraction has 100844 states and 125823 transitions. [2020-12-22 15:26:23,438 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:26:23,438 INFO L276 IsEmpty]: Start isEmpty. Operand 100844 states and 125823 transitions. [2020-12-22 15:26:23,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2020-12-22 15:26:23,452 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:26:23,453 INFO L422 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] [2020-12-22 15:26:23,668 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 15:26:23,669 INFO L429 AbstractCegarLoop]: === Iteration 10 === [video_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:26:23,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:26:23,670 INFO L82 PathProgramCache]: Analyzing trace with hash -136631857, now seen corresponding path program 1 times [2020-12-22 15:26:23,671 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:26:23,671 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36209472] [2020-12-22 15:26:23,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:26:23,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:26:24,697 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 6 proven. 17 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-12-22 15:26:24,698 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36209472] [2020-12-22 15:26:24,698 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [520158459] [2020-12-22 15:26:24,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 15:26:28,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:26:28,590 INFO L263 TraceCheckSpWp]: Trace formula consists of 8655 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-22 15:26:28,605 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 15:26:28,877 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2020-12-22 15:26:28,877 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 15:26:28,877 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2020-12-22 15:26:28,878 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867589578] [2020-12-22 15:26:28,878 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:26:28,878 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:26:28,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:26:28,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 15:26:28,879 INFO L87 Difference]: Start difference. First operand 100844 states and 125823 transitions. Second operand 3 states. [2020-12-22 15:26:31,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:26:31,789 INFO L93 Difference]: Finished difference Result 200456 states and 250492 transitions. [2020-12-22 15:26:31,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:26:31,790 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 246 [2020-12-22 15:26:31,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:26:32,015 INFO L225 Difference]: With dead ends: 200456 [2020-12-22 15:26:32,016 INFO L226 Difference]: Without dead ends: 100844 [2020-12-22 15:26:32,201 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 15:26:32,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100844 states. [2020-12-22 15:26:34,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100844 to 100844. [2020-12-22 15:26:34,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100844 states. [2020-12-22 15:26:35,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100844 states to 100844 states and 125754 transitions. [2020-12-22 15:26:35,047 INFO L78 Accepts]: Start accepts. Automaton has 100844 states and 125754 transitions. Word has length 246 [2020-12-22 15:26:35,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:26:35,047 INFO L481 AbstractCegarLoop]: Abstraction has 100844 states and 125754 transitions. [2020-12-22 15:26:35,047 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:26:35,047 INFO L276 IsEmpty]: Start isEmpty. Operand 100844 states and 125754 transitions. [2020-12-22 15:26:35,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2020-12-22 15:26:35,058 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:26:35,059 INFO L422 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] [2020-12-22 15:26:35,272 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-12-22 15:26:35,273 INFO L429 AbstractCegarLoop]: === Iteration 11 === [video_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:26:35,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:26:35,275 INFO L82 PathProgramCache]: Analyzing trace with hash 59926681, now seen corresponding path program 1 times [2020-12-22 15:26:35,275 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:26:35,275 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060624358] [2020-12-22 15:26:35,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:26:35,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:26:36,079 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 6 proven. 17 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-12-22 15:26:36,080 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060624358] [2020-12-22 15:26:36,080 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [17169142] [2020-12-22 15:26:36,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 15:26:40,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:26:40,022 INFO L263 TraceCheckSpWp]: Trace formula consists of 8656 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-22 15:26:40,029 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 15:26:40,364 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2020-12-22 15:26:40,364 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 15:26:40,365 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2020-12-22 15:26:40,365 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293888469] [2020-12-22 15:26:40,365 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:26:40,366 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:26:40,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:26:40,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 15:26:40,366 INFO L87 Difference]: Start difference. First operand 100844 states and 125754 transitions. Second operand 3 states. [2020-12-22 15:26:43,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:26:43,338 INFO L93 Difference]: Finished difference Result 200456 states and 250354 transitions. [2020-12-22 15:26:43,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:26:43,339 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 247 [2020-12-22 15:26:43,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:26:43,612 INFO L225 Difference]: With dead ends: 200456 [2020-12-22 15:26:43,612 INFO L226 Difference]: Without dead ends: 100844 [2020-12-22 15:26:43,834 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 15:26:43,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100844 states. [2020-12-22 15:26:46,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100844 to 100844. [2020-12-22 15:26:46,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100844 states. [2020-12-22 15:26:47,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100844 states to 100844 states and 125685 transitions. [2020-12-22 15:26:47,052 INFO L78 Accepts]: Start accepts. Automaton has 100844 states and 125685 transitions. Word has length 247 [2020-12-22 15:26:47,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:26:47,053 INFO L481 AbstractCegarLoop]: Abstraction has 100844 states and 125685 transitions. [2020-12-22 15:26:47,053 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:26:47,053 INFO L276 IsEmpty]: Start isEmpty. Operand 100844 states and 125685 transitions. [2020-12-22 15:26:47,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2020-12-22 15:26:47,067 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:26:47,068 INFO L422 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, 1] [2020-12-22 15:26:47,268 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 15:26:47,273 INFO L429 AbstractCegarLoop]: === Iteration 12 === [video_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:26:47,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:26:47,274 INFO L82 PathProgramCache]: Analyzing trace with hash 1858423018, now seen corresponding path program 1 times [2020-12-22 15:26:47,274 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:26:47,275 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808544034] [2020-12-22 15:26:47,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:26:47,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:26:48,108 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 6 proven. 17 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-12-22 15:26:48,108 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808544034] [2020-12-22 15:26:48,109 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [651633455] [2020-12-22 15:26:48,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 15:26:51,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:26:51,998 INFO L263 TraceCheckSpWp]: Trace formula consists of 8657 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-22 15:26:52,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 15:26:52,307 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2020-12-22 15:26:52,307 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 15:26:52,308 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2020-12-22 15:26:52,308 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946454276] [2020-12-22 15:26:52,308 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:26:52,309 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:26:52,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:26:52,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 15:26:52,309 INFO L87 Difference]: Start difference. First operand 100844 states and 125685 transitions. Second operand 3 states. [2020-12-22 15:26:55,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:26:55,627 INFO L93 Difference]: Finished difference Result 200456 states and 250216 transitions. [2020-12-22 15:26:55,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:26:55,628 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 248 [2020-12-22 15:26:55,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:26:55,865 INFO L225 Difference]: With dead ends: 200456 [2020-12-22 15:26:55,865 INFO L226 Difference]: Without dead ends: 100844 [2020-12-22 15:26:56,043 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 249 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 15:26:56,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100844 states. [2020-12-22 15:26:59,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100844 to 100844. [2020-12-22 15:26:59,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100844 states. [2020-12-22 15:26:59,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100844 states to 100844 states and 125616 transitions. [2020-12-22 15:26:59,267 INFO L78 Accepts]: Start accepts. Automaton has 100844 states and 125616 transitions. Word has length 248 [2020-12-22 15:26:59,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:26:59,267 INFO L481 AbstractCegarLoop]: Abstraction has 100844 states and 125616 transitions. [2020-12-22 15:26:59,267 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:26:59,267 INFO L276 IsEmpty]: Start isEmpty. Operand 100844 states and 125616 transitions. [2020-12-22 15:26:59,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2020-12-22 15:26:59,283 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:26:59,283 INFO L422 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, 1, 1] [2020-12-22 15:26:59,495 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2020-12-22 15:26:59,497 INFO L429 AbstractCegarLoop]: === Iteration 13 === [video_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:26:59,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:26:59,498 INFO L82 PathProgramCache]: Analyzing trace with hash 1777383572, now seen corresponding path program 1 times [2020-12-22 15:26:59,499 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:26:59,499 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127354211] [2020-12-22 15:26:59,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:27:00,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:27:00,348 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 6 proven. 17 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-12-22 15:27:00,348 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127354211] [2020-12-22 15:27:00,348 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [536707202] [2020-12-22 15:27:00,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 15:27:04,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:27:04,336 INFO L263 TraceCheckSpWp]: Trace formula consists of 8658 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-22 15:27:04,347 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 15:27:04,666 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2020-12-22 15:27:04,667 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 15:27:04,667 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2020-12-22 15:27:04,667 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901899943] [2020-12-22 15:27:04,668 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:27:04,668 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:27:04,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:27:04,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 15:27:04,669 INFO L87 Difference]: Start difference. First operand 100844 states and 125616 transitions. Second operand 3 states. [2020-12-22 15:27:09,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:27:09,680 INFO L93 Difference]: Finished difference Result 200456 states and 250078 transitions. [2020-12-22 15:27:09,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:27:09,681 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 249 [2020-12-22 15:27:09,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:27:09,932 INFO L225 Difference]: With dead ends: 200456 [2020-12-22 15:27:09,932 INFO L226 Difference]: Without dead ends: 100844 [2020-12-22 15:27:10,140 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 250 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 15:27:10,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100844 states. [2020-12-22 15:27:13,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100844 to 100844. [2020-12-22 15:27:13,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100844 states. [2020-12-22 15:27:13,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100844 states to 100844 states and 125547 transitions. [2020-12-22 15:27:13,952 INFO L78 Accepts]: Start accepts. Automaton has 100844 states and 125547 transitions. Word has length 249 [2020-12-22 15:27:13,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:27:13,952 INFO L481 AbstractCegarLoop]: Abstraction has 100844 states and 125547 transitions. [2020-12-22 15:27:13,953 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:27:13,953 INFO L276 IsEmpty]: Start isEmpty. Operand 100844 states and 125547 transitions. [2020-12-22 15:27:13,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2020-12-22 15:27:13,962 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:27:13,963 INFO L422 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, 1, 1, 1] [2020-12-22 15:27:14,163 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 15:27:14,168 INFO L429 AbstractCegarLoop]: === Iteration 14 === [video_openErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~X~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:27:14,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:27:14,169 INFO L82 PathProgramCache]: Analyzing trace with hash -734690299, now seen corresponding path program 1 times [2020-12-22 15:27:14,169 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:27:14,170 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431171815] [2020-12-22 15:27:14,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:27:14,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:27:14,669 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 6 proven. 17 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-12-22 15:27:14,669 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431171815] [2020-12-22 15:27:14,670 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1927184352] [2020-12-22 15:27:14,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 15:27:18,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:27:18,765 INFO L263 TraceCheckSpWp]: Trace formula consists of 8659 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-22 15:27:18,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 15:27:19,106 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2020-12-22 15:27:19,106 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 15:27:19,107 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2020-12-22 15:27:19,107 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259596868] [2020-12-22 15:27:19,107 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:27:19,107 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:27:19,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:27:19,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 15:27:19,108 INFO L87 Difference]: Start difference. First operand 100844 states and 125547 transitions. Second operand 3 states. [2020-12-22 15:27:22,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:27:22,724 INFO L93 Difference]: Finished difference Result 200456 states and 249940 transitions. [2020-12-22 15:27:22,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:27:22,725 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 250 [2020-12-22 15:27:22,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:27:22,981 INFO L225 Difference]: With dead ends: 200456 [2020-12-22 15:27:22,981 INFO L226 Difference]: Without dead ends: 100844 [2020-12-22 15:27:23,180 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 251 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 15:27:23,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100844 states.