./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-usb-gspca-stv06xx-gspca_stv06xx.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5b36d44f Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-usb-gspca-stv06xx-gspca_stv06xx.cil.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash db9df3fec87d6b9c36faf813a91a46a081cd02854907cc9bcc81712e1820716c --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5b36d44 [2021-11-07 16:29:18,147 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 16:29:18,149 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 16:29:18,184 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 16:29:18,185 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 16:29:18,186 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 16:29:18,186 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 16:29:18,201 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 16:29:18,203 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 16:29:18,205 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 16:29:18,205 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 16:29:18,207 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 16:29:18,207 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 16:29:18,212 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 16:29:18,214 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 16:29:18,217 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 16:29:18,220 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 16:29:18,221 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 16:29:18,222 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 16:29:18,226 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 16:29:18,232 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 16:29:18,233 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 16:29:18,234 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 16:29:18,235 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 16:29:18,237 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 16:29:18,238 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 16:29:18,238 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 16:29:18,239 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 16:29:18,240 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 16:29:18,241 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 16:29:18,241 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 16:29:18,241 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 16:29:18,242 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 16:29:18,243 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 16:29:18,244 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 16:29:18,245 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 16:29:18,245 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 16:29:18,246 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 16:29:18,246 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 16:29:18,247 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 16:29:18,247 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 16:29:18,248 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 16:29:18,267 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 16:29:18,267 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 16:29:18,267 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 16:29:18,268 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 16:29:18,269 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 16:29:18,269 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 16:29:18,269 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 16:29:18,269 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 16:29:18,275 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 16:29:18,275 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 16:29:18,275 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 16:29:18,276 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 16:29:18,276 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 16:29:18,276 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 16:29:18,276 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 16:29:18,276 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 16:29:18,276 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 16:29:18,276 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 16:29:18,277 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 16:29:18,277 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 16:29:18,277 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 16:29:18,277 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 16:29:18,277 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 16:29:18,277 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 16:29:18,277 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 16:29:18,278 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 16:29:18,278 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 16:29:18,278 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 16:29:18,278 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 16:29:18,278 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> db9df3fec87d6b9c36faf813a91a46a081cd02854907cc9bcc81712e1820716c [2021-11-07 16:29:18,494 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 16:29:18,513 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 16:29:18,515 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 16:29:18,516 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 16:29:18,517 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 16:29:18,518 INFO L432 ainManager$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 [2021-11-07 16:29:18,567 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b520553f2/c7df1d8232554522b186db7e1c197703/FLAG52dd3c753 [2021-11-07 16:29:19,231 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 16:29:19,232 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 [2021-11-07 16:29:19,264 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b520553f2/c7df1d8232554522b186db7e1c197703/FLAG52dd3c753 [2021-11-07 16:29:19,640 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b520553f2/c7df1d8232554522b186db7e1c197703 [2021-11-07 16:29:19,642 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 16:29:19,643 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 16:29:19,644 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 16:29:19,644 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 16:29:19,649 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 16:29:19,649 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:29:19" (1/1) ... [2021-11-07 16:29:19,651 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cc3287 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:29:19, skipping insertion in model container [2021-11-07 16:29:19,651 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:29:19" (1/1) ... [2021-11-07 16:29:19,656 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 16:29:19,745 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 16:29:21,411 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-usb-gspca-stv06xx-gspca_stv06xx.cil.i[297133,297146] [2021-11-07 16:29:21,418 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-usb-gspca-stv06xx-gspca_stv06xx.cil.i[297278,297291] [2021-11-07 16:29:21,423 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 16:29:21,465 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 16:29:21,742 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-usb-gspca-stv06xx-gspca_stv06xx.cil.i[297133,297146] [2021-11-07 16:29:21,744 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-usb-gspca-stv06xx-gspca_stv06xx.cil.i[297278,297291] [2021-11-07 16:29:21,745 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 16:29:21,847 INFO L208 MainTranslator]: Completed translation [2021-11-07 16:29:21,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:29:21 WrapperNode [2021-11-07 16:29:21,849 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 16:29:21,850 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 16:29:21,850 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 16:29:21,850 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 16:29:21,855 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:29:21" (1/1) ... [2021-11-07 16:29:21,940 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:29:21" (1/1) ... [2021-11-07 16:29:23,146 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 16:29:23,147 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 16:29:23,147 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 16:29:23,147 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 16:29:23,154 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:29:21" (1/1) ... [2021-11-07 16:29:23,154 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:29:21" (1/1) ... [2021-11-07 16:29:23,567 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:29:21" (1/1) ... [2021-11-07 16:29:23,576 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:29:21" (1/1) ... [2021-11-07 16:29:24,507 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:29:21" (1/1) ... [2021-11-07 16:29:24,721 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:29:21" (1/1) ... [2021-11-07 16:29:24,835 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:29:21" (1/1) ... [2021-11-07 16:29:25,121 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 16:29:25,122 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 16:29:25,122 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 16:29:25,123 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 16:29:25,123 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:29:21" (1/1) ... [2021-11-07 16:29:25,129 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 16:29:25,137 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 16:29:25,148 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 16:29:25,166 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 16:29:25,179 INFO L130 BoogieDeclarations]: Found specification of procedure stv06xx_init_controls [2021-11-07 16:29:25,181 INFO L138 BoogieDeclarations]: Found implementation of procedure stv06xx_init_controls [2021-11-07 16:29:25,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 16:29:25,181 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 16:29:25,181 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 16:29:25,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 16:29:25,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 16:29:25,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-07 16:29:25,182 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 16:29:25,182 INFO L130 BoogieDeclarations]: Found specification of procedure stv06xx_init [2021-11-07 16:29:25,182 INFO L138 BoogieDeclarations]: Found implementation of procedure stv06xx_init [2021-11-07 16:29:25,182 INFO L130 BoogieDeclarations]: Found specification of procedure stv06xx_start [2021-11-07 16:29:25,182 INFO L138 BoogieDeclarations]: Found implementation of procedure stv06xx_start [2021-11-07 16:29:25,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 16:29:25,182 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 16:29:25,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 16:29:25,182 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-07 16:29:25,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-07 16:29:25,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 16:29:25,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 16:29:25,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 16:30:58,032 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#6: ldv_switch_1_#res := 0; [2021-11-07 16:30:58,033 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#7: ldv_switch_1_#res := 0; [2021-11-07 16:30:58,033 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#4: ldv_switch_1_#res := 0; [2021-11-07 16:30:58,033 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#5: ldv_switch_1_#res := 0; [2021-11-07 16:30:58,033 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-07 16:30:58,034 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2021-11-07 16:30:58,034 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-07 16:30:58,034 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-07 16:30:58,034 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#8: ldv_switch_1_#res := 0; [2021-11-07 16:30:58,034 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#9: ldv_switch_1_#res := 0; [2021-11-07 16:30:58,035 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#10: ldv_switch_1_#res := 0; [2021-11-07 16:30:58,035 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-07 16:30:58,036 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0; [2021-11-07 16:30:58,037 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-07 16:31:35,278 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 16:31:35,279 INFO L299 CfgBuilder]: Removed 6763 assume(true) statements. [2021-11-07 16:31:35,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:31:35 BoogieIcfgContainer [2021-11-07 16:31:35,289 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 16:31:35,291 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 16:31:35,291 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 16:31:35,294 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 16:31:35,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:29:19" (1/3) ... [2021-11-07 16:31:35,295 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cc8300e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:31:35, skipping insertion in model container [2021-11-07 16:31:35,295 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:29:21" (2/3) ... [2021-11-07 16:31:35,296 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cc8300e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:31:35, skipping insertion in model container [2021-11-07 16:31:35,296 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:31:35" (3/3) ... [2021-11-07 16:31:35,311 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-usb-gspca-stv06xx-gspca_stv06xx.cil.i [2021-11-07 16:31:35,315 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 16:31:35,316 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-11-07 16:31:35,390 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 16:31:35,398 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 16:31:35,399 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-07 16:31:35,497 INFO L276 IsEmpty]: Start isEmpty. Operand has 9360 states, 9331 states have (on average 1.4032793912763906) internal successors, (13094), 9336 states have internal predecessors, (13094), 19 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2021-11-07 16:31:35,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-07 16:31:35,519 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 16:31:35,519 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 16:31:35,520 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 16:31:35,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 16:31:35,525 INFO L85 PathProgramCache]: Analyzing trace with hash 629780618, now seen corresponding path program 1 times [2021-11-07 16:31:35,531 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 16:31:35,532 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236654869] [2021-11-07 16:31:35,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 16:31:35,533 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 16:31:35,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 16:31:36,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 16:31:36,228 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 16:31:36,229 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236654869] [2021-11-07 16:31:36,229 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236654869] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 16:31:36,229 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 16:31:36,229 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 16:31:36,231 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341428672] [2021-11-07 16:31:36,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 16:31:36,234 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 16:31:36,234 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 16:31:36,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 16:31:36,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 16:31:36,275 INFO L87 Difference]: Start difference. First operand has 9360 states, 9331 states have (on average 1.4032793912763906) internal successors, (13094), 9336 states have internal predecessors, (13094), 19 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 16:31:38,362 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 16:31:39,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 16:31:39,319 INFO L93 Difference]: Finished difference Result 25905 states and 36441 transitions. [2021-11-07 16:31:39,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 16:31:39,322 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2021-11-07 16:31:39,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 16:31:39,460 INFO L225 Difference]: With dead ends: 25905 [2021-11-07 16:31:39,460 INFO L226 Difference]: Without dead ends: 16320 [2021-11-07 16:31:39,550 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.87ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 16:31:39,556 INFO L933 BasicCegarLoop]: 13133 mSDtfsCounter, 10333 mSDsluCounter, 13075 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2244.33ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10333 SdHoareTripleChecker+Valid, 26208 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 46.50ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2408.59ms IncrementalHoareTripleChecker+Time [2021-11-07 16:31:39,558 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10333 Valid, 26208 Invalid, 69 Unknown, 0 Unchecked, 46.50ms Time], IncrementalHoareTripleChecker [13 Valid, 55 Invalid, 1 Unknown, 0 Unchecked, 2408.59ms Time] [2021-11-07 16:31:39,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16320 states. [2021-11-07 16:31:39,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16320 to 16300. [2021-11-07 16:31:40,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16300 states, 16248 states have (on average 1.3940177252584933) internal successors, (22650), 16253 states have internal predecessors, (22650), 38 states have call successors, (38), 8 states have call predecessors, (38), 8 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2021-11-07 16:31:40,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16300 states to 16300 states and 22726 transitions. [2021-11-07 16:31:40,141 INFO L78 Accepts]: Start accepts. Automaton has 16300 states and 22726 transitions. Word has length 81 [2021-11-07 16:31:40,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 16:31:40,143 INFO L470 AbstractCegarLoop]: Abstraction has 16300 states and 22726 transitions. [2021-11-07 16:31:40,144 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 16:31:40,145 INFO L276 IsEmpty]: Start isEmpty. Operand 16300 states and 22726 transitions. [2021-11-07 16:31:40,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-07 16:31:40,154 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 16:31:40,155 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 16:31:40,155 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 16:31:40,155 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ##fun~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 16:31:40,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 16:31:40,157 INFO L85 PathProgramCache]: Analyzing trace with hash 1926348868, now seen corresponding path program 1 times [2021-11-07 16:31:40,157 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 16:31:40,157 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842507305] [2021-11-07 16:31:40,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 16:31:40,158 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 16:31:40,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 16:31:40,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 16:31:40,457 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 16:31:40,457 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842507305] [2021-11-07 16:31:40,457 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842507305] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 16:31:40,457 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 16:31:40,458 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 16:31:40,458 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321148421] [2021-11-07 16:31:40,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 16:31:40,459 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 16:31:40,459 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 16:31:40,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 16:31:40,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 16:31:40,460 INFO L87 Difference]: Start difference. First operand 16300 states and 22726 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 16:31:42,517 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 16:31:43,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 16:31:43,583 INFO L93 Difference]: Finished difference Result 48166 states and 67204 transitions. [2021-11-07 16:31:43,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 16:31:43,584 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2021-11-07 16:31:43,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 16:31:43,866 INFO L225 Difference]: With dead ends: 48166 [2021-11-07 16:31:43,867 INFO L226 Difference]: Without dead ends: 32006 [2021-11-07 16:31:43,989 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.54ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 16:31:43,992 INFO L933 BasicCegarLoop]: 12750 mSDtfsCounter, 12198 mSDsluCounter, 12654 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2174.55ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 12198 SdHoareTripleChecker+Valid, 25404 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 32.73ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2332.97ms IncrementalHoareTripleChecker+Time [2021-11-07 16:31:43,992 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12198 Valid, 25404 Invalid, 54 Unknown, 0 Unchecked, 32.73ms Time], IncrementalHoareTripleChecker [7 Valid, 46 Invalid, 1 Unknown, 0 Unchecked, 2332.97ms Time] [2021-11-07 16:31:44,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32006 states. [2021-11-07 16:31:45,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32006 to 31982. [2021-11-07 16:31:45,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31982 states, 31902 states have (on average 1.3946147576954422) internal successors, (44491), 31907 states have internal predecessors, (44491), 58 states have call successors, (58), 16 states have call predecessors, (58), 16 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2021-11-07 16:31:45,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31982 states to 31982 states and 44607 transitions. [2021-11-07 16:31:45,502 INFO L78 Accepts]: Start accepts. Automaton has 31982 states and 44607 transitions. Word has length 86 [2021-11-07 16:31:45,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 16:31:45,504 INFO L470 AbstractCegarLoop]: Abstraction has 31982 states and 44607 transitions. [2021-11-07 16:31:45,505 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 16:31:45,505 INFO L276 IsEmpty]: Start isEmpty. Operand 31982 states and 44607 transitions. [2021-11-07 16:31:45,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-07 16:31:45,511 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 16:31:45,512 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 16:31:45,512 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 16:31:45,512 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ##fun~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 16:31:45,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 16:31:45,513 INFO L85 PathProgramCache]: Analyzing trace with hash -1064908927, now seen corresponding path program 1 times [2021-11-07 16:31:45,513 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 16:31:45,514 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482174086] [2021-11-07 16:31:45,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 16:31:45,514 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 16:31:45,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 16:31:45,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 16:31:45,738 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 16:31:45,738 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482174086] [2021-11-07 16:31:45,738 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482174086] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 16:31:45,739 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 16:31:45,739 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 16:31:45,739 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972277069] [2021-11-07 16:31:45,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 16:31:45,739 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 16:31:45,739 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 16:31:45,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 16:31:45,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 16:31:45,740 INFO L87 Difference]: Start difference. First operand 31982 states and 44607 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 16:31:47,796 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 16:31:49,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 16:31:49,301 INFO L93 Difference]: Finished difference Result 95046 states and 132731 transitions. [2021-11-07 16:31:49,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 16:31:49,302 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2021-11-07 16:31:49,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 16:31:49,635 INFO L225 Difference]: With dead ends: 95046 [2021-11-07 16:31:49,636 INFO L226 Difference]: Without dead ends: 63204 [2021-11-07 16:31:49,810 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.52ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 16:31:49,812 INFO L933 BasicCegarLoop]: 15196 mSDtfsCounter, 12323 mSDsluCounter, 12648 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2166.84ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 12323 SdHoareTripleChecker+Valid, 27844 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 23.64ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2350.98ms IncrementalHoareTripleChecker+Time [2021-11-07 16:31:49,815 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12323 Valid, 27844 Invalid, 69 Unknown, 0 Unchecked, 23.64ms Time], IncrementalHoareTripleChecker [13 Valid, 55 Invalid, 1 Unknown, 0 Unchecked, 2350.98ms Time] [2021-11-07 16:31:49,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63204 states. [2021-11-07 16:31:51,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63204 to 63168. [2021-11-07 16:31:51,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63168 states, 63018 states have (on average 1.3962201275825954) internal successors, (87987), 63023 states have internal predecessors, (87987), 112 states have call successors, (112), 32 states have call predecessors, (112), 32 states have return successors, (112), 112 states have call predecessors, (112), 112 states have call successors, (112) [2021-11-07 16:31:51,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63168 states to 63168 states and 88211 transitions. [2021-11-07 16:31:51,427 INFO L78 Accepts]: Start accepts. Automaton has 63168 states and 88211 transitions. Word has length 87 [2021-11-07 16:31:51,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 16:31:51,427 INFO L470 AbstractCegarLoop]: Abstraction has 63168 states and 88211 transitions. [2021-11-07 16:31:51,427 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 16:31:51,427 INFO L276 IsEmpty]: Start isEmpty. Operand 63168 states and 88211 transitions. [2021-11-07 16:31:51,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-07 16:31:51,601 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 16:31:51,601 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 16:31:51,601 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 16:31:51,601 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 16:31:51,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 16:31:51,601 INFO L85 PathProgramCache]: Analyzing trace with hash 38884024, now seen corresponding path program 1 times [2021-11-07 16:31:51,602 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 16:31:51,602 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349465251] [2021-11-07 16:31:51,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 16:31:51,602 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 16:31:51,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 16:31:51,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 16:31:51,832 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 16:31:51,832 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349465251] [2021-11-07 16:31:51,832 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349465251] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 16:31:51,832 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 16:31:51,833 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 16:31:51,833 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962985691] [2021-11-07 16:31:51,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 16:31:51,834 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 16:31:51,834 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 16:31:51,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 16:31:51,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 16:31:51,835 INFO L87 Difference]: Start difference. First operand 63168 states and 88211 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 16:31:53,890 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 16:31:56,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 16:31:56,714 INFO L93 Difference]: Finished difference Result 183650 states and 256562 transitions. [2021-11-07 16:31:56,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 16:31:56,715 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2021-11-07 16:31:56,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 16:31:57,388 INFO L225 Difference]: With dead ends: 183650 [2021-11-07 16:31:57,389 INFO L226 Difference]: Without dead ends: 120622 [2021-11-07 16:31:57,624 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.30ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 16:31:57,625 INFO L933 BasicCegarLoop]: 15398 mSDtfsCounter, 11543 mSDsluCounter, 12645 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2204.38ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11543 SdHoareTripleChecker+Valid, 28043 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 24.55ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2371.49ms IncrementalHoareTripleChecker+Time [2021-11-07 16:31:57,625 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11543 Valid, 28043 Invalid, 69 Unknown, 0 Unchecked, 24.55ms Time], IncrementalHoareTripleChecker [13 Valid, 55 Invalid, 1 Unknown, 0 Unchecked, 2371.49ms Time] [2021-11-07 16:31:57,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120622 states. [2021-11-07 16:31:59,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120622 to 120600. [2021-11-07 16:32:00,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120600 states, 120306 states have (on average 1.3961315312619487) internal successors, (167963), 120311 states have internal predecessors, (167963), 224 states have call successors, (224), 64 states have call predecessors, (224), 64 states have return successors, (224), 224 states have call predecessors, (224), 224 states have call successors, (224) [2021-11-07 16:32:00,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120600 states to 120600 states and 168411 transitions. [2021-11-07 16:32:00,945 INFO L78 Accepts]: Start accepts. Automaton has 120600 states and 168411 transitions. Word has length 87 [2021-11-07 16:32:00,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 16:32:00,946 INFO L470 AbstractCegarLoop]: Abstraction has 120600 states and 168411 transitions. [2021-11-07 16:32:00,946 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 16:32:00,946 INFO L276 IsEmpty]: Start isEmpty. Operand 120600 states and 168411 transitions. [2021-11-07 16:32:00,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-11-07 16:32:00,955 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 16:32:00,955 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 16:32:00,956 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 16:32:00,956 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 16:32:00,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 16:32:00,956 INFO L85 PathProgramCache]: Analyzing trace with hash -1916250634, now seen corresponding path program 1 times [2021-11-07 16:32:00,956 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 16:32:00,957 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733118597] [2021-11-07 16:32:00,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 16:32:00,957 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 16:32:01,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 16:32:01,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 16:32:01,179 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 16:32:01,179 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733118597] [2021-11-07 16:32:01,181 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733118597] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 16:32:01,181 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 16:32:01,182 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 16:32:01,182 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520533191] [2021-11-07 16:32:01,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 16:32:01,183 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 16:32:01,183 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 16:32:01,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 16:32:01,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 16:32:01,185 INFO L87 Difference]: Start difference. First operand 120600 states and 168411 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 16:32:03,258 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 16:32:08,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 16:32:08,701 INFO L93 Difference]: Finished difference Result 350366 states and 489382 transitions. [2021-11-07 16:32:08,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 16:32:08,702 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2021-11-07 16:32:08,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 16:32:09,988 INFO L225 Difference]: With dead ends: 350366 [2021-11-07 16:32:09,988 INFO L226 Difference]: Without dead ends: 229906 [2021-11-07 16:32:10,468 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.10ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 16:32:10,469 INFO L933 BasicCegarLoop]: 16376 mSDtfsCounter, 11540 mSDsluCounter, 12646 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2214.54ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11540 SdHoareTripleChecker+Valid, 29022 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 27.29ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2416.54ms IncrementalHoareTripleChecker+Time [2021-11-07 16:32:10,469 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11540 Valid, 29022 Invalid, 69 Unknown, 0 Unchecked, 27.29ms Time], IncrementalHoareTripleChecker [13 Valid, 55 Invalid, 1 Unknown, 0 Unchecked, 2416.54ms Time] [2021-11-07 16:32:10,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229906 states. [2021-11-07 16:32:14,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229906 to 229880. [2021-11-07 16:32:15,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229880 states, 229298 states have (on average 1.395786269396157) internal successors, (320051), 229303 states have internal predecessors, (320051), 448 states have call successors, (448), 128 states have call predecessors, (448), 128 states have return successors, (448), 448 states have call predecessors, (448), 448 states have call successors, (448) [2021-11-07 16:32:17,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229880 states to 229880 states and 320947 transitions. [2021-11-07 16:32:17,014 INFO L78 Accepts]: Start accepts. Automaton has 229880 states and 320947 transitions. Word has length 88 [2021-11-07 16:32:17,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 16:32:17,014 INFO L470 AbstractCegarLoop]: Abstraction has 229880 states and 320947 transitions. [2021-11-07 16:32:17,014 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 16:32:17,014 INFO L276 IsEmpty]: Start isEmpty. Operand 229880 states and 320947 transitions. [2021-11-07 16:32:17,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-11-07 16:32:17,021 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 16:32:17,022 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 16:32:17,022 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-07 16:32:17,022 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ##fun~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-07 16:32:17,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 16:32:17,023 INFO L85 PathProgramCache]: Analyzing trace with hash -1442204475, now seen corresponding path program 1 times [2021-11-07 16:32:17,023 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 16:32:17,023 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865859974] [2021-11-07 16:32:17,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 16:32:17,024 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 16:32:17,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 16:32:17,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 16:32:17,281 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 16:32:17,281 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865859974] [2021-11-07 16:32:17,281 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865859974] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 16:32:17,281 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 16:32:17,282 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 16:32:17,282 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777335024] [2021-11-07 16:32:17,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 16:32:17,282 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 16:32:17,282 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 16:32:17,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 16:32:17,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 16:32:17,283 INFO L87 Difference]: Start difference. First operand 229880 states and 320947 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 16:32:19,340 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []