./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 173e3943 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-dev-173e394 [2021-11-06 18:05:26,137 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-06 18:05:26,139 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-06 18:05:26,172 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-06 18:05:26,173 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-06 18:05:26,174 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-06 18:05:26,175 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-06 18:05:26,176 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-06 18:05:26,177 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-06 18:05:26,177 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-06 18:05:26,178 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-06 18:05:26,179 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-06 18:05:26,179 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-06 18:05:26,181 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-06 18:05:26,183 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-06 18:05:26,184 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-06 18:05:26,186 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-06 18:05:26,190 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-06 18:05:26,191 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-06 18:05:26,194 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-06 18:05:26,195 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-06 18:05:26,198 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-06 18:05:26,199 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-06 18:05:26,199 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-06 18:05:26,201 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-06 18:05:26,204 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-06 18:05:26,204 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-06 18:05:26,205 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-06 18:05:26,205 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-06 18:05:26,205 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-06 18:05:26,206 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-06 18:05:26,207 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-06 18:05:26,207 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-06 18:05:26,208 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-06 18:05:26,209 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-06 18:05:26,209 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-06 18:05:26,210 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-06 18:05:26,211 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-06 18:05:26,211 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-06 18:05:26,211 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-06 18:05:26,212 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-06 18:05:26,212 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-06 18:05:26,229 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-06 18:05:26,231 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-06 18:05:26,231 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-06 18:05:26,232 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-06 18:05:26,232 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-06 18:05:26,233 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-06 18:05:26,233 INFO L138 SettingsManager]: * Use SBE=true [2021-11-06 18:05:26,233 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-06 18:05:26,233 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-06 18:05:26,233 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-06 18:05:26,234 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-06 18:05:26,234 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-06 18:05:26,234 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-06 18:05:26,234 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-06 18:05:26,234 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-06 18:05:26,235 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-06 18:05:26,235 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-06 18:05:26,235 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-06 18:05:26,235 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-06 18:05:26,235 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 18:05:26,235 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-06 18:05:26,236 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-06 18:05:26,236 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-06 18:05:26,236 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-06 18:05:26,236 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-06 18:05:26,236 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-06 18:05:26,236 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-06 18:05:26,236 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-06 18:05:26,237 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-06 18:05:26,237 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> db9df3fec87d6b9c36faf813a91a46a081cd02854907cc9bcc81712e1820716c [2021-11-06 18:05:26,412 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-06 18:05:26,429 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-06 18:05:26,431 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-06 18:05:26,432 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-06 18:05:26,433 INFO L275 PluginConnector]: CDTParser initialized [2021-11-06 18:05:26,434 INFO L432 ainManager$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 [2021-11-06 18:05:26,482 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34ac7877c/e4ecdd017be949e7853661694961c672/FLAGa7e8c9269 [2021-11-06 18:05:27,085 INFO L306 CDTParser]: Found 1 translation units. [2021-11-06 18:05:27,085 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 [2021-11-06 18:05:27,118 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34ac7877c/e4ecdd017be949e7853661694961c672/FLAGa7e8c9269 [2021-11-06 18:05:27,511 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34ac7877c/e4ecdd017be949e7853661694961c672 [2021-11-06 18:05:27,515 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-06 18:05:27,517 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-06 18:05:27,520 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-06 18:05:27,520 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-06 18:05:27,522 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-06 18:05:27,522 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 06:05:27" (1/1) ... [2021-11-06 18:05:27,523 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e0515df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:05:27, skipping insertion in model container [2021-11-06 18:05:27,523 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 06:05:27" (1/1) ... [2021-11-06 18:05:27,528 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-06 18:05:27,626 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-06 18:05:28,928 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] [2021-11-06 18:05:28,930 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] [2021-11-06 18:05:28,933 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 18:05:28,963 INFO L203 MainTranslator]: Completed pre-run [2021-11-06 18:05:29,210 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] [2021-11-06 18:05:29,211 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] [2021-11-06 18:05:29,212 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 18:05:29,303 INFO L208 MainTranslator]: Completed translation [2021-11-06 18:05:29,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:05:29 WrapperNode [2021-11-06 18:05:29,304 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-06 18:05:29,305 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-06 18:05:29,305 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-06 18:05:29,306 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-06 18:05:29,310 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:05:29" (1/1) ... [2021-11-06 18:05:29,363 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:05:29" (1/1) ... [2021-11-06 18:05:30,570 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-06 18:05:30,595 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-06 18:05:30,596 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-06 18:05:30,596 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-06 18:05:30,602 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:05:29" (1/1) ... [2021-11-06 18:05:30,602 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:05:29" (1/1) ... [2021-11-06 18:05:31,144 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:05:29" (1/1) ... [2021-11-06 18:05:31,145 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:05:29" (1/1) ... [2021-11-06 18:05:31,782 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:05:29" (1/1) ... [2021-11-06 18:05:31,914 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:05:29" (1/1) ... [2021-11-06 18:05:31,994 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:05:29" (1/1) ... [2021-11-06 18:05:32,212 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-06 18:05:32,213 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-06 18:05:32,213 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-06 18:05:32,213 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-06 18:05:32,214 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:05:29" (1/1) ... [2021-11-06 18:05:32,219 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 18:05:32,225 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 18:05:32,234 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) [2021-11-06 18:05:32,259 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 [2021-11-06 18:05:32,266 INFO L130 BoogieDeclarations]: Found specification of procedure stv06xx_init_controls [2021-11-06 18:05:32,267 INFO L138 BoogieDeclarations]: Found implementation of procedure stv06xx_init_controls [2021-11-06 18:05:32,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-06 18:05:32,268 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-06 18:05:32,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-06 18:05:32,268 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-06 18:05:32,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-06 18:05:32,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-06 18:05:32,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-06 18:05:32,268 INFO L130 BoogieDeclarations]: Found specification of procedure stv06xx_init [2021-11-06 18:05:32,268 INFO L138 BoogieDeclarations]: Found implementation of procedure stv06xx_init [2021-11-06 18:05:32,269 INFO L130 BoogieDeclarations]: Found specification of procedure stv06xx_start [2021-11-06 18:05:32,269 INFO L138 BoogieDeclarations]: Found implementation of procedure stv06xx_start [2021-11-06 18:05:32,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-06 18:05:32,269 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-06 18:05:32,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-06 18:05:32,269 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-06 18:05:32,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-06 18:05:32,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-06 18:05:32,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-06 18:05:32,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-06 18:06:57,293 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#6: ldv_switch_1_#res := 0; [2021-11-06 18:06:57,294 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#7: ldv_switch_1_#res := 0; [2021-11-06 18:06:57,294 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#4: ldv_switch_1_#res := 0; [2021-11-06 18:06:57,294 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#5: ldv_switch_1_#res := 0; [2021-11-06 18:06:57,294 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-06 18:06:57,294 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2021-11-06 18:06:57,294 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-06 18:06:57,295 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-06 18:06:57,295 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#8: ldv_switch_1_#res := 0; [2021-11-06 18:06:57,295 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#9: ldv_switch_1_#res := 0; [2021-11-06 18:06:57,295 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#10: ldv_switch_1_#res := 0; [2021-11-06 18:06:57,295 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-06 18:06:57,296 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0; [2021-11-06 18:06:57,296 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-06 18:07:25,747 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-06 18:07:25,748 INFO L299 CfgBuilder]: Removed 6763 assume(true) statements. [2021-11-06 18:07:25,754 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 06:07:25 BoogieIcfgContainer [2021-11-06 18:07:25,754 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-06 18:07:25,756 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-06 18:07:25,756 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-06 18:07:25,761 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-06 18:07:25,761 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 06:05:27" (1/3) ... [2021-11-06 18:07:25,762 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c097f3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 06:07:25, skipping insertion in model container [2021-11-06 18:07:25,762 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:05:29" (2/3) ... [2021-11-06 18:07:25,763 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c097f3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 06:07:25, skipping insertion in model container [2021-11-06 18:07:25,763 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 06:07:25" (3/3) ... [2021-11-06 18:07:25,764 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-usb-gspca-stv06xx-gspca_stv06xx.cil.i [2021-11-06 18:07:25,767 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-06 18:07:25,767 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-11-06 18:07:25,815 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-06 18:07:25,822 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 [2021-11-06 18:07:25,822 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-06 18:07:25,913 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) [2021-11-06 18:07:25,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-06 18:07:25,937 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:07:25,938 INFO L513 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] [2021-11-06 18:07:25,939 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)] === [2021-11-06 18:07:25,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:07:25,948 INFO L85 PathProgramCache]: Analyzing trace with hash 629780618, now seen corresponding path program 1 times [2021-11-06 18:07:25,959 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:07:25,961 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539443748] [2021-11-06 18:07:25,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:07:25,961 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:07:26,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:07:26,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 18:07:26,834 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:07:26,834 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539443748] [2021-11-06 18:07:26,834 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539443748] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:07:26,834 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:07:26,835 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:07:26,836 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664331577] [2021-11-06 18:07:26,841 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:07:26,842 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:07:26,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:07:26,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:07:26,872 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) [2021-11-06 18:07:29,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:07:29,710 INFO L93 Difference]: Finished difference Result 25905 states and 36441 transitions. [2021-11-06 18:07:29,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:07:29,711 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 [2021-11-06 18:07:29,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:07:29,845 INFO L225 Difference]: With dead ends: 25905 [2021-11-06 18:07:29,846 INFO L226 Difference]: Without dead ends: 16320 [2021-11-06 18:07:29,929 INFO L786 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 [2021-11-06 18:07:29,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16320 states. [2021-11-06 18:07:30,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16320 to 16300. [2021-11-06 18:07:30,313 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) [2021-11-06 18:07:30,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16300 states to 16300 states and 22726 transitions. [2021-11-06 18:07:30,449 INFO L78 Accepts]: Start accepts. Automaton has 16300 states and 22726 transitions. Word has length 81 [2021-11-06 18:07:30,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:07:30,452 INFO L470 AbstractCegarLoop]: Abstraction has 16300 states and 22726 transitions. [2021-11-06 18:07:30,452 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) [2021-11-06 18:07:30,453 INFO L276 IsEmpty]: Start isEmpty. Operand 16300 states and 22726 transitions. [2021-11-06 18:07:30,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-06 18:07:30,462 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:07:30,462 INFO L513 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] [2021-11-06 18:07:30,463 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-06 18:07:30,463 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)] === [2021-11-06 18:07:30,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:07:30,465 INFO L85 PathProgramCache]: Analyzing trace with hash 1926348868, now seen corresponding path program 1 times [2021-11-06 18:07:30,465 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:07:30,468 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845920693] [2021-11-06 18:07:30,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:07:30,468 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:07:30,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:07:30,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 18:07:30,705 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:07:30,705 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845920693] [2021-11-06 18:07:30,705 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845920693] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:07:30,706 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:07:30,706 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:07:30,706 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402769488] [2021-11-06 18:07:30,708 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:07:30,708 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:07:30,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:07:30,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:07:30,710 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) [2021-11-06 18:07:33,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:07:33,852 INFO L93 Difference]: Finished difference Result 48166 states and 67204 transitions. [2021-11-06 18:07:33,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:07:33,854 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 [2021-11-06 18:07:33,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:07:34,068 INFO L225 Difference]: With dead ends: 48166 [2021-11-06 18:07:34,069 INFO L226 Difference]: Without dead ends: 32006 [2021-11-06 18:07:34,166 INFO L786 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 [2021-11-06 18:07:34,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32006 states. [2021-11-06 18:07:34,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32006 to 31982. [2021-11-06 18:07:34,857 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) [2021-11-06 18:07:34,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31982 states to 31982 states and 44607 transitions. [2021-11-06 18:07:34,982 INFO L78 Accepts]: Start accepts. Automaton has 31982 states and 44607 transitions. Word has length 86 [2021-11-06 18:07:34,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:07:34,984 INFO L470 AbstractCegarLoop]: Abstraction has 31982 states and 44607 transitions. [2021-11-06 18:07:34,984 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) [2021-11-06 18:07:34,984 INFO L276 IsEmpty]: Start isEmpty. Operand 31982 states and 44607 transitions. [2021-11-06 18:07:34,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-06 18:07:34,990 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:07:34,990 INFO L513 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] [2021-11-06 18:07:34,990 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-06 18:07:34,991 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)] === [2021-11-06 18:07:34,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:07:34,991 INFO L85 PathProgramCache]: Analyzing trace with hash -1064908927, now seen corresponding path program 1 times [2021-11-06 18:07:34,991 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:07:34,992 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399944999] [2021-11-06 18:07:34,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:07:34,992 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:07:35,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:07:35,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 18:07:35,234 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:07:35,234 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399944999] [2021-11-06 18:07:35,234 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399944999] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:07:35,235 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:07:35,235 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:07:35,235 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582436759] [2021-11-06 18:07:35,235 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:07:35,235 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:07:35,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:07:35,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:07:35,236 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) [2021-11-06 18:07:38,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:07:38,741 INFO L93 Difference]: Finished difference Result 95046 states and 132731 transitions. [2021-11-06 18:07:38,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:07:38,742 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 [2021-11-06 18:07:38,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:07:39,057 INFO L225 Difference]: With dead ends: 95046 [2021-11-06 18:07:39,060 INFO L226 Difference]: Without dead ends: 63204 [2021-11-06 18:07:39,199 INFO L786 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 [2021-11-06 18:07:39,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63204 states. [2021-11-06 18:07:40,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63204 to 63168. [2021-11-06 18:07:40,475 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) [2021-11-06 18:07:40,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63168 states to 63168 states and 88211 transitions. [2021-11-06 18:07:40,705 INFO L78 Accepts]: Start accepts. Automaton has 63168 states and 88211 transitions. Word has length 87 [2021-11-06 18:07:40,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:07:40,707 INFO L470 AbstractCegarLoop]: Abstraction has 63168 states and 88211 transitions. [2021-11-06 18:07:40,707 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) [2021-11-06 18:07:40,707 INFO L276 IsEmpty]: Start isEmpty. Operand 63168 states and 88211 transitions. [2021-11-06 18:07:40,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-06 18:07:40,713 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:07:40,713 INFO L513 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] [2021-11-06 18:07:40,714 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-06 18:07:40,714 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)] === [2021-11-06 18:07:40,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:07:40,714 INFO L85 PathProgramCache]: Analyzing trace with hash 38884024, now seen corresponding path program 1 times [2021-11-06 18:07:40,714 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:07:40,715 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85280880] [2021-11-06 18:07:40,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:07:40,715 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:07:40,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:07:40,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 18:07:40,922 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:07:40,922 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85280880] [2021-11-06 18:07:40,922 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85280880] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:07:40,922 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:07:40,923 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:07:40,923 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499049019] [2021-11-06 18:07:40,923 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:07:40,923 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:07:40,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:07:40,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:07:40,924 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) [2021-11-06 18:07:45,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:07:45,530 INFO L93 Difference]: Finished difference Result 183650 states and 256562 transitions. [2021-11-06 18:07:45,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:07:45,531 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 [2021-11-06 18:07:45,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:07:46,191 INFO L225 Difference]: With dead ends: 183650 [2021-11-06 18:07:46,191 INFO L226 Difference]: Without dead ends: 120622 [2021-11-06 18:07:46,391 INFO L786 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 [2021-11-06 18:07:46,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120622 states. [2021-11-06 18:07:48,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120622 to 120600. [2021-11-06 18:07:48,870 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) [2021-11-06 18:07:49,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120600 states to 120600 states and 168411 transitions. [2021-11-06 18:07:49,613 INFO L78 Accepts]: Start accepts. Automaton has 120600 states and 168411 transitions. Word has length 87 [2021-11-06 18:07:49,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:07:49,614 INFO L470 AbstractCegarLoop]: Abstraction has 120600 states and 168411 transitions. [2021-11-06 18:07:49,614 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) [2021-11-06 18:07:49,614 INFO L276 IsEmpty]: Start isEmpty. Operand 120600 states and 168411 transitions. [2021-11-06 18:07:49,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-11-06 18:07:49,619 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:07:49,619 INFO L513 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] [2021-11-06 18:07:49,619 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-06 18:07:49,619 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)] === [2021-11-06 18:07:49,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:07:49,620 INFO L85 PathProgramCache]: Analyzing trace with hash -1916250634, now seen corresponding path program 1 times [2021-11-06 18:07:49,620 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:07:49,620 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38258261] [2021-11-06 18:07:49,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:07:49,620 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:07:49,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:07:49,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 18:07:49,798 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:07:49,798 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38258261] [2021-11-06 18:07:49,798 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38258261] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:07:49,798 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:07:49,798 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:07:49,798 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792400935] [2021-11-06 18:07:49,799 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:07:49,799 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:07:49,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:07:49,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:07:49,800 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) [2021-11-06 18:07:56,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:07:56,920 INFO L93 Difference]: Finished difference Result 350366 states and 489382 transitions. [2021-11-06 18:07:56,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:07:56,921 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 [2021-11-06 18:07:56,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:07:58,167 INFO L225 Difference]: With dead ends: 350366 [2021-11-06 18:07:58,168 INFO L226 Difference]: Without dead ends: 229906 [2021-11-06 18:07:58,696 INFO L786 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 [2021-11-06 18:07:58,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229906 states. [2021-11-06 18:08:03,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229906 to 229880. [2021-11-06 18:08:03,479 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) [2021-11-06 18:08:04,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229880 states to 229880 states and 320947 transitions. [2021-11-06 18:08:04,883 INFO L78 Accepts]: Start accepts. Automaton has 229880 states and 320947 transitions. Word has length 88 [2021-11-06 18:08:04,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:08:04,883 INFO L470 AbstractCegarLoop]: Abstraction has 229880 states and 320947 transitions. [2021-11-06 18:08:04,883 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) [2021-11-06 18:08:04,883 INFO L276 IsEmpty]: Start isEmpty. Operand 229880 states and 320947 transitions. [2021-11-06 18:08:04,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-11-06 18:08:04,890 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:08:04,890 INFO L513 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] [2021-11-06 18:08:04,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-06 18:08:04,891 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)] === [2021-11-06 18:08:04,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:08:04,891 INFO L85 PathProgramCache]: Analyzing trace with hash -1442204475, now seen corresponding path program 1 times [2021-11-06 18:08:04,892 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:08:04,892 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418295616] [2021-11-06 18:08:04,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:08:04,892 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:08:04,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:08:05,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 18:08:05,076 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:08:05,076 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418295616] [2021-11-06 18:08:05,076 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418295616] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:08:05,076 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:08:05,076 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:08:05,076 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375422800] [2021-11-06 18:08:05,077 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:08:05,077 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:08:05,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:08:05,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:08:05,078 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)