/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-usb-gspca-stv06xx-gspca_stv06xx.cil.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 15:25:27,023 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 15:25:27,028 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 15:25:27,087 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 15:25:27,088 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 15:25:27,093 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 15:25:27,096 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 15:25:27,105 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 15:25:27,108 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 15:25:27,114 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 15:25:27,115 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 15:25:27,117 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 15:25:27,117 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 15:25:27,121 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 15:25:27,123 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 15:25:27,124 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 15:25:27,126 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 15:25:27,130 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 15:25:27,150 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 15:25:27,158 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 15:25:27,162 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 15:25:27,163 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 15:25:27,164 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 15:25:27,168 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 15:25:27,175 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 15:25:27,175 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 15:25:27,176 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 15:25:27,177 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 15:25:27,178 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 15:25:27,179 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 15:25:27,179 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 15:25:27,180 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 15:25:27,181 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 15:25:27,182 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 15:25:27,183 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 15:25:27,183 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 15:25:27,184 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 15:25:27,184 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 15:25:27,185 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 15:25:27,185 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 15:25:27,186 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 15:25:27,187 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 15:25:27,214 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 15:25:27,215 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 15:25:27,216 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 15:25:27,217 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 15:25:27,217 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 15:25:27,217 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 15:25:27,217 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 15:25:27,218 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 15:25:27,218 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 15:25:27,218 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 15:25:27,218 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 15:25:27,218 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 15:25:27,219 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 15:25:27,219 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 15:25:27,219 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 15:25:27,219 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 15:25:27,219 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 15:25:27,220 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 15:25:27,220 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 15:25:27,220 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 15:25:27,220 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 15:25:27,221 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 15:25:27,221 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 15:25:27,221 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 15:25:27,221 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 15:25:27,221 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 15:25:27,583 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 15:25:27,610 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 15:25:27,614 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 15:25:27,616 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 15:25:27,617 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 15:25:27,618 INFO L432 ainManager$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-usb-gspca-stv06xx-gspca_stv06xx.cil.i [2020-12-22 15:25:27,713 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c69c8c4fa/c87f09ebf0e048abade993110d315f73/FLAGc66ff87cb [2020-12-22 15:25:28,817 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 15:25:28,818 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-usb-gspca-stv06xx-gspca_stv06xx.cil.i [2020-12-22 15:25:28,885 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c69c8c4fa/c87f09ebf0e048abade993110d315f73/FLAGc66ff87cb [2020-12-22 15:25:29,183 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c69c8c4fa/c87f09ebf0e048abade993110d315f73 [2020-12-22 15:25:29,186 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 15:25:29,190 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 15:25:29,194 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 15:25:29,195 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 15:25:29,199 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 15:25:29,200 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:25:29" (1/1) ... [2020-12-22 15:25:29,203 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b30b15d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:25:29, skipping insertion in model container [2020-12-22 15:25:29,203 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:25:29" (1/1) ... [2020-12-22 15:25:29,212 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 15:25:29,457 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 15:25:32,282 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-usb-gspca-stv06xx-gspca_stv06xx.cil.i[297133,297146] [2020-12-22 15:25:32,285 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-usb-gspca-stv06xx-gspca_stv06xx.cil.i[297278,297291] [2020-12-22 15:25:32,291 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 15:25:32,346 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 15:25:32,946 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-usb-gspca-stv06xx-gspca_stv06xx.cil.i[297133,297146] [2020-12-22 15:25:32,947 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-usb-gspca-stv06xx-gspca_stv06xx.cil.i[297278,297291] [2020-12-22 15:25:32,951 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 15:25:33,663 INFO L208 MainTranslator]: Completed translation [2020-12-22 15:25:33,664 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:25:33 WrapperNode [2020-12-22 15:25:33,668 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 15:25:33,670 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 15:25:33,670 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 15:25:33,670 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 15:25:33,681 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:25:33" (1/1) ... [2020-12-22 15:25:33,829 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:25:33" (1/1) ... [2020-12-22 15:25:35,707 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 15:25:35,708 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 15:25:35,708 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 15:25:35,708 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 15:25:35,719 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:25:33" (1/1) ... [2020-12-22 15:25:35,719 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:25:33" (1/1) ... [2020-12-22 15:25:36,472 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:25:33" (1/1) ... [2020-12-22 15:25:36,474 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:25:33" (1/1) ... [2020-12-22 15:25:37,904 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:25:33" (1/1) ... [2020-12-22 15:25:38,319 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:25:33" (1/1) ... [2020-12-22 15:25:38,510 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:25:33" (1/1) ... [2020-12-22 15:25:38,826 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 15:25:38,828 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 15:25:38,829 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 15:25:38,829 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 15:25:38,830 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:25:33" (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 15:25:38,943 INFO L130 BoogieDeclarations]: Found specification of procedure stv06xx_init_controls [2020-12-22 15:25:38,943 INFO L138 BoogieDeclarations]: Found implementation of procedure stv06xx_init_controls [2020-12-22 15:25:38,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-12-22 15:25:38,944 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 15:25:38,944 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-22 15:25:38,945 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 15:25:38,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-22 15:25:38,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-12-22 15:25:38,946 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 15:25:38,949 INFO L130 BoogieDeclarations]: Found specification of procedure stv06xx_init [2020-12-22 15:25:38,949 INFO L138 BoogieDeclarations]: Found implementation of procedure stv06xx_init [2020-12-22 15:25:38,949 INFO L130 BoogieDeclarations]: Found specification of procedure stv06xx_start [2020-12-22 15:25:38,949 INFO L138 BoogieDeclarations]: Found implementation of procedure stv06xx_start [2020-12-22 15:25:38,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 15:25:38,949 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-22 15:25:38,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-22 15:25:38,950 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2020-12-22 15:25:38,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2020-12-22 15:25:38,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 15:25:38,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 15:25:38,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 15:27:26,179 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#6: ldv_switch_1_#res := 0; [2020-12-22 15:27:26,179 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#7: ldv_switch_1_#res := 0; [2020-12-22 15:27:26,179 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#4: ldv_switch_1_#res := 0; [2020-12-22 15:27:26,180 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#5: ldv_switch_1_#res := 0; [2020-12-22 15:27:26,180 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2020-12-22 15:27:26,180 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2020-12-22 15:27:26,180 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2020-12-22 15:27:26,181 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2020-12-22 15:27:26,181 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#8: ldv_switch_1_#res := 0; [2020-12-22 15:27:26,181 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#9: ldv_switch_1_#res := 0; [2020-12-22 15:27:26,182 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#10: ldv_switch_1_#res := 0; [2020-12-22 15:27:26,182 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2020-12-22 15:27:26,183 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0; [2020-12-22 15:27:26,184 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2020-12-22 15:28:00,351 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 15:28:00,352 INFO L299 CfgBuilder]: Removed 6763 assume(true) statements. [2020-12-22 15:28:00,361 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:28:00 BoogieIcfgContainer [2020-12-22 15:28:00,362 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 15:28:00,364 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 15:28:00,364 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 15:28:00,367 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 15:28:00,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 03:25:29" (1/3) ... [2020-12-22 15:28:00,368 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e479317 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:28:00, skipping insertion in model container [2020-12-22 15:28:00,369 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:25:33" (2/3) ... [2020-12-22 15:28:00,369 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e479317 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:28:00, skipping insertion in model container [2020-12-22 15:28:00,369 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:28:00" (3/3) ... [2020-12-22 15:28:00,371 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-usb-gspca-stv06xx-gspca_stv06xx.cil.i [2020-12-22 15:28:00,377 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 15:28:00,388 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2020-12-22 15:28:00,408 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-12-22 15:28:00,467 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 15:28:00,467 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 15:28:00,467 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 15:28:00,467 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 15:28:00,467 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 15:28:00,468 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 15:28:00,468 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 15:28:00,468 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 15:28:00,583 INFO L276 IsEmpty]: Start isEmpty. Operand 9360 states. [2020-12-22 15:28:00,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-12-22 15:28:00,616 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:28:00,617 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] [2020-12-22 15:28:00,618 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~intErr2ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~intErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:28:00,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:28:00,624 INFO L82 PathProgramCache]: Analyzing trace with hash 629780618, now seen corresponding path program 1 times [2020-12-22 15:28:00,634 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:28:00,634 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058231937] [2020-12-22 15:28:00,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:28:01,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:28:01,706 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 15:28:01,706 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058231937] [2020-12-22 15:28:01,707 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:28:01,707 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:28:01,708 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145243484] [2020-12-22 15:28:01,713 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:28:01,713 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:28:01,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:28:01,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:28:01,734 INFO L87 Difference]: Start difference. First operand 9360 states. Second operand 3 states. [2020-12-22 15:28:05,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:28:05,572 INFO L93 Difference]: Finished difference Result 25905 states and 36441 transitions. [2020-12-22 15:28:05,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:28:05,576 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 81 [2020-12-22 15:28:05,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:28:05,755 INFO L225 Difference]: With dead ends: 25905 [2020-12-22 15:28:05,755 INFO L226 Difference]: Without dead ends: 16320 [2020-12-22 15:28:05,866 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 15:28:05,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16320 states. [2020-12-22 15:28:06,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16320 to 16300. [2020-12-22 15:28:06,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16300 states. [2020-12-22 15:28:06,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16300 states to 16300 states and 22726 transitions. [2020-12-22 15:28:06,672 INFO L78 Accepts]: Start accepts. Automaton has 16300 states and 22726 transitions. Word has length 81 [2020-12-22 15:28:06,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:28:06,675 INFO L481 AbstractCegarLoop]: Abstraction has 16300 states and 22726 transitions. [2020-12-22 15:28:06,675 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:28:06,675 INFO L276 IsEmpty]: Start isEmpty. Operand 16300 states and 22726 transitions. [2020-12-22 15:28:06,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-12-22 15:28:06,690 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:28:06,691 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] [2020-12-22 15:28:06,691 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 15:28:06,691 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~intErr2ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~intErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:28:06,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:28:06,693 INFO L82 PathProgramCache]: Analyzing trace with hash 1926348868, now seen corresponding path program 1 times [2020-12-22 15:28:06,694 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:28:06,694 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893791682] [2020-12-22 15:28:06,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:28:06,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:28:07,138 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 15:28:07,139 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893791682] [2020-12-22 15:28:07,139 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:28:07,139 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:28:07,139 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494797030] [2020-12-22 15:28:07,141 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:28:07,141 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:28:07,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:28:07,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:28:07,142 INFO L87 Difference]: Start difference. First operand 16300 states and 22726 transitions. Second operand 3 states. [2020-12-22 15:28:10,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:28:10,773 INFO L93 Difference]: Finished difference Result 48166 states and 67204 transitions. [2020-12-22 15:28:10,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:28:10,774 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 86 [2020-12-22 15:28:10,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:28:11,117 INFO L225 Difference]: With dead ends: 48166 [2020-12-22 15:28:11,117 INFO L226 Difference]: Without dead ends: 32006 [2020-12-22 15:28:11,233 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 15:28:11,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32006 states. [2020-12-22 15:28:12,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32006 to 31982. [2020-12-22 15:28:12,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31982 states. [2020-12-22 15:28:12,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31982 states to 31982 states and 44607 transitions. [2020-12-22 15:28:12,542 INFO L78 Accepts]: Start accepts. Automaton has 31982 states and 44607 transitions. Word has length 86 [2020-12-22 15:28:12,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:28:12,547 INFO L481 AbstractCegarLoop]: Abstraction has 31982 states and 44607 transitions. [2020-12-22 15:28:12,549 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:28:12,550 INFO L276 IsEmpty]: Start isEmpty. Operand 31982 states and 44607 transitions. [2020-12-22 15:28:12,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-12-22 15:28:12,560 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:28:12,567 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] [2020-12-22 15:28:12,568 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 15:28:12,568 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~intErr2ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~intErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:28:12,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:28:12,569 INFO L82 PathProgramCache]: Analyzing trace with hash -1064908927, now seen corresponding path program 1 times [2020-12-22 15:28:12,570 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:28:12,570 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698476583] [2020-12-22 15:28:12,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:28:12,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:28:13,142 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 15:28:13,143 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698476583] [2020-12-22 15:28:13,143 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:28:13,143 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:28:13,143 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732818154] [2020-12-22 15:28:13,144 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:28:13,144 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:28:13,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:28:13,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:28:13,145 INFO L87 Difference]: Start difference. First operand 31982 states and 44607 transitions. Second operand 3 states. [2020-12-22 15:28:17,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:28:17,632 INFO L93 Difference]: Finished difference Result 95046 states and 132731 transitions. [2020-12-22 15:28:17,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:28:17,633 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 87 [2020-12-22 15:28:17,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:28:17,992 INFO L225 Difference]: With dead ends: 95046 [2020-12-22 15:28:17,992 INFO L226 Difference]: Without dead ends: 63204 [2020-12-22 15:28:18,296 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 15:28:18,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63204 states. [2020-12-22 15:28:20,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63204 to 63168. [2020-12-22 15:28:20,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63168 states. [2020-12-22 15:28:20,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63168 states to 63168 states and 88211 transitions. [2020-12-22 15:28:20,718 INFO L78 Accepts]: Start accepts. Automaton has 63168 states and 88211 transitions. Word has length 87 [2020-12-22 15:28:20,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:28:20,720 INFO L481 AbstractCegarLoop]: Abstraction has 63168 states and 88211 transitions. [2020-12-22 15:28:20,720 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:28:20,721 INFO L276 IsEmpty]: Start isEmpty. Operand 63168 states and 88211 transitions. [2020-12-22 15:28:20,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-12-22 15:28:20,731 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:28:20,732 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] [2020-12-22 15:28:20,732 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 15:28:20,732 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~intErr2ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~intErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:28:20,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:28:20,733 INFO L82 PathProgramCache]: Analyzing trace with hash 38884024, now seen corresponding path program 1 times [2020-12-22 15:28:20,733 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:28:20,734 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839107150] [2020-12-22 15:28:20,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:28:20,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:28:21,077 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 15:28:21,077 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839107150] [2020-12-22 15:28:21,077 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:28:21,078 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:28:21,078 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277009113] [2020-12-22 15:28:21,078 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:28:21,079 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:28:21,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:28:21,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:28:21,079 INFO L87 Difference]: Start difference. First operand 63168 states and 88211 transitions. Second operand 3 states. [2020-12-22 15:28:26,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:28:26,577 INFO L93 Difference]: Finished difference Result 183650 states and 256562 transitions. [2020-12-22 15:28:26,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:28:26,578 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 87 [2020-12-22 15:28:26,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:28:27,289 INFO L225 Difference]: With dead ends: 183650 [2020-12-22 15:28:27,289 INFO L226 Difference]: Without dead ends: 120622 [2020-12-22 15:28:27,875 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 15:28:27,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120622 states. [2020-12-22 15:28:31,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120622 to 120600. [2020-12-22 15:28:31,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120600 states. [2020-12-22 15:28:32,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120600 states to 120600 states and 168411 transitions. [2020-12-22 15:28:32,328 INFO L78 Accepts]: Start accepts. Automaton has 120600 states and 168411 transitions. Word has length 87 [2020-12-22 15:28:32,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:28:32,329 INFO L481 AbstractCegarLoop]: Abstraction has 120600 states and 168411 transitions. [2020-12-22 15:28:32,329 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:28:32,329 INFO L276 IsEmpty]: Start isEmpty. Operand 120600 states and 168411 transitions. [2020-12-22 15:28:32,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-12-22 15:28:32,336 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:28:32,336 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] [2020-12-22 15:28:32,336 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 15:28:32,337 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~intErr2ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~intErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:28:32,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:28:32,337 INFO L82 PathProgramCache]: Analyzing trace with hash -1916250634, now seen corresponding path program 1 times [2020-12-22 15:28:32,338 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:28:32,338 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266432356] [2020-12-22 15:28:32,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:28:32,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:28:32,916 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 15:28:32,916 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266432356] [2020-12-22 15:28:32,917 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:28:32,917 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:28:32,917 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843343781] [2020-12-22 15:28:32,918 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:28:32,918 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:28:32,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:28:32,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:28:32,925 INFO L87 Difference]: Start difference. First operand 120600 states and 168411 transitions. Second operand 3 states. [2020-12-22 15:28:40,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:28:40,378 INFO L93 Difference]: Finished difference Result 350366 states and 489382 transitions. [2020-12-22 15:28:40,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:28:40,379 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 88 [2020-12-22 15:28:40,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:28:41,409 INFO L225 Difference]: With dead ends: 350366 [2020-12-22 15:28:41,410 INFO L226 Difference]: Without dead ends: 229906 [2020-12-22 15:28:42,058 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 15:28:42,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229906 states. [2020-12-22 15:28:47,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229906 to 229880. [2020-12-22 15:28:47,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229880 states. [2020-12-22 15:28:49,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229880 states to 229880 states and 320947 transitions. [2020-12-22 15:28:49,204 INFO L78 Accepts]: Start accepts. Automaton has 229880 states and 320947 transitions. Word has length 88 [2020-12-22 15:28:49,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:28:49,205 INFO L481 AbstractCegarLoop]: Abstraction has 229880 states and 320947 transitions. [2020-12-22 15:28:49,205 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:28:49,205 INFO L276 IsEmpty]: Start isEmpty. Operand 229880 states and 320947 transitions. [2020-12-22 15:28:49,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-12-22 15:28:49,214 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:28:49,215 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] [2020-12-22 15:28:49,215 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 15:28:49,215 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~intErr2ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~intErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:28:49,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:28:49,215 INFO L82 PathProgramCache]: Analyzing trace with hash -1442204475, now seen corresponding path program 1 times [2020-12-22 15:28:49,216 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:28:49,216 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636745419] [2020-12-22 15:28:49,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:28:49,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:28:49,537 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 15:28:49,538 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636745419] [2020-12-22 15:28:49,538 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:28:49,538 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:28:49,540 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371065302] [2020-12-22 15:28:49,541 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:28:49,541 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:28:49,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:28:49,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:28:49,542 INFO L87 Difference]: Start difference. First operand 229880 states and 320947 transitions. Second operand 3 states.