./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 c36dfa3b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-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-c36dfa3 [2021-11-04 08:57:38,356 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-04 08:57:38,357 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-04 08:57:38,388 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-04 08:57:38,389 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-04 08:57:38,390 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-04 08:57:38,391 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-04 08:57:38,392 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-04 08:57:38,394 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-04 08:57:38,394 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-04 08:57:38,395 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-04 08:57:38,396 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-04 08:57:38,396 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-04 08:57:38,397 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-04 08:57:38,398 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-04 08:57:38,399 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-04 08:57:38,400 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-04 08:57:38,400 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-04 08:57:38,401 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-04 08:57:38,403 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-04 08:57:38,404 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-04 08:57:38,405 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-04 08:57:38,406 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-04 08:57:38,406 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-04 08:57:38,408 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-04 08:57:38,408 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-04 08:57:38,409 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-04 08:57:38,409 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-04 08:57:38,410 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-04 08:57:38,410 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-04 08:57:38,410 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-04 08:57:38,411 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-04 08:57:38,412 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-04 08:57:38,412 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-04 08:57:38,413 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-04 08:57:38,413 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-04 08:57:38,414 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-04 08:57:38,414 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-04 08:57:38,414 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-04 08:57:38,415 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-04 08:57:38,415 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-04 08:57:38,417 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-04 08:57:38,432 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-04 08:57:38,432 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-04 08:57:38,432 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-04 08:57:38,432 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-04 08:57:38,433 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-04 08:57:38,434 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-04 08:57:38,434 INFO L138 SettingsManager]: * Use SBE=true [2021-11-04 08:57:38,434 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-04 08:57:38,434 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-04 08:57:38,434 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-04 08:57:38,434 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-04 08:57:38,435 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-04 08:57:38,435 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-04 08:57:38,435 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-04 08:57:38,435 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-04 08:57:38,435 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-04 08:57:38,435 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-04 08:57:38,435 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-04 08:57:38,436 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-04 08:57:38,436 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 08:57:38,436 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-04 08:57:38,436 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-04 08:57:38,436 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-04 08:57:38,436 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-04 08:57:38,437 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-04 08:57:38,437 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-04 08:57:38,437 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-04 08:57:38,437 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-04 08:57:38,437 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-04 08:57:38,437 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> db9df3fec87d6b9c36faf813a91a46a081cd02854907cc9bcc81712e1820716c [2021-11-04 08:57:38,629 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-04 08:57:38,646 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-04 08:57:38,652 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-04 08:57:38,653 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-04 08:57:38,654 INFO L275 PluginConnector]: CDTParser initialized [2021-11-04 08:57:38,656 INFO L432 ainManager$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 [2021-11-04 08:57:38,715 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/949b25e42/01d40cbe6610449d85e043cc3fc58e83/FLAG71ff96701 [2021-11-04 08:57:39,379 INFO L306 CDTParser]: Found 1 translation units. [2021-11-04 08:57:39,380 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 [2021-11-04 08:57:39,422 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/949b25e42/01d40cbe6610449d85e043cc3fc58e83/FLAG71ff96701 [2021-11-04 08:57:39,725 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/949b25e42/01d40cbe6610449d85e043cc3fc58e83 [2021-11-04 08:57:39,727 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-04 08:57:39,732 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-04 08:57:39,744 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-04 08:57:39,745 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-04 08:57:39,748 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-04 08:57:39,749 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 08:57:39" (1/1) ... [2021-11-04 08:57:39,750 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e536001 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:57:39, skipping insertion in model container [2021-11-04 08:57:39,750 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 08:57:39" (1/1) ... [2021-11-04 08:57:39,755 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-04 08:57:39,868 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-04 08:57:41,439 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] [2021-11-04 08:57:41,441 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] [2021-11-04 08:57:41,443 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 08:57:41,475 INFO L203 MainTranslator]: Completed pre-run [2021-11-04 08:57:41,720 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] [2021-11-04 08:57:41,721 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] [2021-11-04 08:57:41,723 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 08:57:41,807 INFO L208 MainTranslator]: Completed translation [2021-11-04 08:57:41,808 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:57:41 WrapperNode [2021-11-04 08:57:41,808 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-04 08:57:41,809 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-04 08:57:41,809 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-04 08:57:41,809 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-04 08:57:41,814 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:57:41" (1/1) ... [2021-11-04 08:57:41,876 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:57:41" (1/1) ... [2021-11-04 08:57:43,354 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-04 08:57:43,355 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-04 08:57:43,355 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-04 08:57:43,355 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-04 08:57:43,361 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:57:41" (1/1) ... [2021-11-04 08:57:43,362 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:57:41" (1/1) ... [2021-11-04 08:57:43,876 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:57:41" (1/1) ... [2021-11-04 08:57:43,878 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:57:41" (1/1) ... [2021-11-04 08:57:44,483 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:57:41" (1/1) ... [2021-11-04 08:57:44,647 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:57:41" (1/1) ... [2021-11-04 08:57:44,726 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:57:41" (1/1) ... [2021-11-04 08:57:45,130 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-04 08:57:45,135 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-04 08:57:45,135 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-04 08:57:45,135 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-04 08:57:45,137 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:57:41" (1/1) ... [2021-11-04 08:57:45,142 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 08:57:45,149 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-04 08:57:45,161 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-04 08:57:45,182 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-04 08:57:45,193 INFO L130 BoogieDeclarations]: Found specification of procedure stv06xx_init_controls [2021-11-04 08:57:45,194 INFO L138 BoogieDeclarations]: Found implementation of procedure stv06xx_init_controls [2021-11-04 08:57:45,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-04 08:57:45,195 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-04 08:57:45,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-04 08:57:45,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-04 08:57:45,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-04 08:57:45,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-04 08:57:45,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-04 08:57:45,196 INFO L130 BoogieDeclarations]: Found specification of procedure stv06xx_init [2021-11-04 08:57:45,196 INFO L138 BoogieDeclarations]: Found implementation of procedure stv06xx_init [2021-11-04 08:57:45,196 INFO L130 BoogieDeclarations]: Found specification of procedure stv06xx_start [2021-11-04 08:57:45,196 INFO L138 BoogieDeclarations]: Found implementation of procedure stv06xx_start [2021-11-04 08:57:45,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-04 08:57:45,196 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-04 08:57:45,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-04 08:57:45,196 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-04 08:57:45,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-04 08:57:45,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-04 08:57:45,197 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-04 08:57:45,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-04 08:58:37,672 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#6: ldv_switch_1_#res := 0; [2021-11-04 08:58:37,672 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#7: ldv_switch_1_#res := 0; [2021-11-04 08:58:37,672 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#4: ldv_switch_1_#res := 0; [2021-11-04 08:58:37,673 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#5: ldv_switch_1_#res := 0; [2021-11-04 08:58:37,673 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-04 08:58:37,673 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2021-11-04 08:58:37,673 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-04 08:58:37,673 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-04 08:58:37,673 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#8: ldv_switch_1_#res := 0; [2021-11-04 08:58:37,673 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#9: ldv_switch_1_#res := 0; [2021-11-04 08:58:37,674 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#10: ldv_switch_1_#res := 0; [2021-11-04 08:58:37,674 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-04 08:58:37,674 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0; [2021-11-04 08:58:37,675 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-04 08:58:39,511 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-04 08:58:39,511 INFO L299 CfgBuilder]: Removed 6763 assume(true) statements. [2021-11-04 08:58:39,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 08:58:39 BoogieIcfgContainer [2021-11-04 08:58:39,521 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-04 08:58:39,522 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-04 08:58:39,522 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-04 08:58:39,525 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-04 08:58:39,525 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.11 08:57:39" (1/3) ... [2021-11-04 08:58:39,526 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6330247c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 08:58:39, skipping insertion in model container [2021-11-04 08:58:39,526 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:57:41" (2/3) ... [2021-11-04 08:58:39,526 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6330247c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 08:58:39, skipping insertion in model container [2021-11-04 08:58:39,526 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 08:58:39" (3/3) ... [2021-11-04 08:58:39,527 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-usb-gspca-stv06xx-gspca_stv06xx.cil.i [2021-11-04 08:58:39,531 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-04 08:58:39,532 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-11-04 08:58:39,585 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-04 08:58:39,599 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-04 08:58:39,599 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-04 08:58:39,691 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) [2021-11-04 08:58:39,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-04 08:58:39,715 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 08:58:39,715 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] [2021-11-04 08:58:39,716 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)] === [2021-11-04 08:58:39,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 08:58:39,722 INFO L85 PathProgramCache]: Analyzing trace with hash 629780618, now seen corresponding path program 1 times [2021-11-04 08:58:39,728 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 08:58:39,729 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746862043] [2021-11-04 08:58:39,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 08:58:39,730 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 08:58:40,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 08:58:40,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 08:58:40,304 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 08:58:40,304 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746862043] [2021-11-04 08:58:40,305 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746862043] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 08:58:40,305 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 08:58:40,305 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 08:58:40,306 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331235979] [2021-11-04 08:58:40,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 08:58:40,309 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 08:58:40,310 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 08:58:40,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 08:58:40,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 08:58:40,578 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) [2021-11-04 08:58:42,692 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:58:46,651 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:58:49,341 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:58:53,244 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:59:06,018 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:59:36,839 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 08:59:51,177 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:00:18,410 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:00:46,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 09:00:46,031 INFO L93 Difference]: Finished difference Result 25743 states and 36238 transitions. [2021-11-04 09:00:46,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 09:00:46,034 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 [2021-11-04 09:00:46,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 09:00:46,176 INFO L225 Difference]: With dead ends: 25743 [2021-11-04 09:00:46,177 INFO L226 Difference]: Without dead ends: 16174 [2021-11-04 09:00:46,256 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.46ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 09:00:46,258 INFO L933 BasicCegarLoop]: 255 mSDtfsCounter, 10114 mSDsluCounter, 13069 mSDsCounter, 0 mSdLazyCounter, 25759 mSolverCounterSat, 13 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 115020.07ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10127 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 25779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 108.74ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 25759 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 123637.88ms IncrementalHoareTripleChecker+Time [2021-11-04 09:00:46,259 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10127 Valid, 491 Invalid, 25779 Unknown, 0 Unchecked, 108.74ms Time], IncrementalHoareTripleChecker [13 Valid, 25759 Invalid, 7 Unknown, 0 Unchecked, 123637.88ms Time] [2021-11-04 09:00:46,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16174 states. [2021-11-04 09:00:46,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16174 to 16147. [2021-11-04 09:00:46,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16147 states, 16095 states have (on average 1.3951537744641194) internal successors, (22455), 16100 states have internal predecessors, (22455), 38 states have call successors, (38), 8 states have call predecessors, (38), 8 states have return successors, (51), 38 states have call predecessors, (51), 38 states have call successors, (51) [2021-11-04 09:00:46,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16147 states to 16147 states and 22544 transitions. [2021-11-04 09:00:46,806 INFO L78 Accepts]: Start accepts. Automaton has 16147 states and 22544 transitions. Word has length 81 [2021-11-04 09:00:46,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 09:00:46,808 INFO L470 AbstractCegarLoop]: Abstraction has 16147 states and 22544 transitions. [2021-11-04 09:00:46,808 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) [2021-11-04 09:00:46,809 INFO L276 IsEmpty]: Start isEmpty. Operand 16147 states and 22544 transitions. [2021-11-04 09:00:46,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-04 09:00:46,820 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 09:00:46,820 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] [2021-11-04 09:00:46,820 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-04 09:00:46,822 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)] === [2021-11-04 09:00:46,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 09:00:46,823 INFO L85 PathProgramCache]: Analyzing trace with hash 1926348868, now seen corresponding path program 1 times [2021-11-04 09:00:46,823 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 09:00:46,824 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284659256] [2021-11-04 09:00:46,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 09:00:46,824 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 09:00:46,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 09:00:47,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 09:00:47,270 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 09:00:47,270 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284659256] [2021-11-04 09:00:47,272 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284659256] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 09:00:47,272 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 09:00:47,272 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 09:00:47,273 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067478982] [2021-11-04 09:00:47,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 09:00:47,274 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 09:00:47,275 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 09:00:47,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 09:00:47,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 09:00:47,280 INFO L87 Difference]: Start difference. First operand 16147 states and 22544 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) [2021-11-04 09:00:49,339 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:00:54,077 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:00:56,160 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:01:02,397 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:01:08,433 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:01:12,077 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:01:18,729 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:01:23,115 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:01:34,654 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:01:35,892 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:01:50,593 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:02:06,029 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:02:17,224 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:02:42,661 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:02:52,431 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:03:19,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 09:03:19,935 INFO L93 Difference]: Finished difference Result 47458 states and 66359 transitions. [2021-11-04 09:03:19,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 09:03:19,936 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 [2021-11-04 09:03:19,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 09:03:20,210 INFO L225 Difference]: With dead ends: 47458 [2021-11-04 09:03:20,210 INFO L226 Difference]: Without dead ends: 31451 [2021-11-04 09:03:20,279 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.67ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 09:03:20,280 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 11890 mSDsluCounter, 12647 mSDsCounter, 0 mSdLazyCounter, 25346 mSolverCounterSat, 7 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 137550.42ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11897 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 25361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 101.47ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 25346 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 150775.19ms IncrementalHoareTripleChecker+Time [2021-11-04 09:03:20,280 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11897 Valid, 89 Invalid, 25361 Unknown, 0 Unchecked, 101.47ms Time], IncrementalHoareTripleChecker [7 Valid, 25346 Invalid, 8 Unknown, 0 Unchecked, 150775.19ms Time] [2021-11-04 09:03:20,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31451 states. [2021-11-04 09:03:20,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31451 to 31417. [2021-11-04 09:03:20,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31417 states, 31337 states have (on average 1.3970067332546192) internal successors, (43778), 31342 states have internal predecessors, (43778), 58 states have call successors, (58), 16 states have call predecessors, (58), 16 states have return successors, (92), 58 states have call predecessors, (92), 58 states have call successors, (92) [2021-11-04 09:03:20,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31417 states to 31417 states and 43928 transitions. [2021-11-04 09:03:20,937 INFO L78 Accepts]: Start accepts. Automaton has 31417 states and 43928 transitions. Word has length 86 [2021-11-04 09:03:20,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 09:03:20,939 INFO L470 AbstractCegarLoop]: Abstraction has 31417 states and 43928 transitions. [2021-11-04 09:03:20,939 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) [2021-11-04 09:03:20,939 INFO L276 IsEmpty]: Start isEmpty. Operand 31417 states and 43928 transitions. [2021-11-04 09:03:20,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-04 09:03:20,945 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 09:03:20,945 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] [2021-11-04 09:03:20,945 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-04 09:03:20,946 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)] === [2021-11-04 09:03:20,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 09:03:20,946 INFO L85 PathProgramCache]: Analyzing trace with hash -1064908927, now seen corresponding path program 1 times [2021-11-04 09:03:20,946 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 09:03:20,946 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153996154] [2021-11-04 09:03:20,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 09:03:20,947 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 09:03:21,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 09:03:21,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 09:03:21,292 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 09:03:21,293 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153996154] [2021-11-04 09:03:21,294 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153996154] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 09:03:21,294 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 09:03:21,294 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 09:03:21,294 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42675138] [2021-11-04 09:03:21,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 09:03:21,295 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 09:03:21,295 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 09:03:21,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 09:03:21,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 09:03:21,296 INFO L87 Difference]: Start difference. First operand 31417 states and 43928 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) [2021-11-04 09:03:23,348 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:03:32,762 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:03:34,257 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:03:40,121 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:03:45,467 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:03:47,507 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:04:08,562 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:04:23,319 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:04:35,907 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:04:51,771 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:04:54,756 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:04:57,999 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:05:18,669 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:05:20,865 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:05:30,170 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:05:58,524 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:06:04,563 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:06:19,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 09:06:19,857 INFO L93 Difference]: Finished difference Result 93174 states and 130521 transitions. [2021-11-04 09:06:19,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 09:06:19,857 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 [2021-11-04 09:06:19,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 09:06:20,103 INFO L225 Difference]: With dead ends: 93174 [2021-11-04 09:06:20,104 INFO L226 Difference]: Without dead ends: 61897 [2021-11-04 09:06:20,212 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.49ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 09:06:20,213 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 12074 mSDsluCounter, 12642 mSDsCounter, 0 mSdLazyCounter, 27677 mSolverCounterSat, 13 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 158070.95ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 12086 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 27699 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 105.59ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 27677 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 175989.05ms IncrementalHoareTripleChecker+Time [2021-11-04 09:06:20,213 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12086 Valid, 94 Invalid, 27699 Unknown, 0 Unchecked, 105.59ms Time], IncrementalHoareTripleChecker [13 Valid, 27677 Invalid, 9 Unknown, 0 Unchecked, 175989.05ms Time] [2021-11-04 09:06:20,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61897 states. [2021-11-04 09:06:21,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61897 to 61856. [2021-11-04 09:06:21,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61856 states, 61706 states have (on average 1.3992642530710142) internal successors, (86343), 61711 states have internal predecessors, (86343), 112 states have call successors, (112), 32 states have call predecessors, (112), 32 states have return successors, (218), 112 states have call predecessors, (218), 112 states have call successors, (218) [2021-11-04 09:06:21,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61856 states to 61856 states and 86673 transitions. [2021-11-04 09:06:21,946 INFO L78 Accepts]: Start accepts. Automaton has 61856 states and 86673 transitions. Word has length 87 [2021-11-04 09:06:21,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 09:06:21,947 INFO L470 AbstractCegarLoop]: Abstraction has 61856 states and 86673 transitions. [2021-11-04 09:06:21,948 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) [2021-11-04 09:06:21,948 INFO L276 IsEmpty]: Start isEmpty. Operand 61856 states and 86673 transitions. [2021-11-04 09:06:21,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-04 09:06:21,956 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 09:06:21,956 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] [2021-11-04 09:06:21,957 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-04 09:06:21,957 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)] === [2021-11-04 09:06:21,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 09:06:21,958 INFO L85 PathProgramCache]: Analyzing trace with hash 38884024, now seen corresponding path program 1 times [2021-11-04 09:06:21,958 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 09:06:21,958 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080399305] [2021-11-04 09:06:21,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 09:06:21,958 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 09:06:22,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 09:06:22,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 09:06:22,283 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 09:06:22,283 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080399305] [2021-11-04 09:06:22,283 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080399305] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 09:06:22,283 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 09:06:22,283 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 09:06:22,283 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715061291] [2021-11-04 09:06:22,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 09:06:22,284 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 09:06:22,285 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 09:06:22,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 09:06:22,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 09:06:22,288 INFO L87 Difference]: Start difference. First operand 61856 states and 86673 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) [2021-11-04 09:06:24,463 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:06:34,055 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:06:40,723 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:06:45,827 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:06:47,877 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:06:55,432 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:07:04,740 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:07:12,146 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:07:17,912 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:07:39,756 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:07:48,154 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:08:16,314 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:08:19,898 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:08:22,345 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:08:48,134 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:08:50,474 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:08:59,871 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:09:17,268 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:09:25,222 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:09:38,529 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:09:42,417 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:09:45,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 09:09:45,753 INFO L93 Difference]: Finished difference Result 179444 states and 251644 transitions. [2021-11-04 09:09:45,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 09:09:45,754 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 [2021-11-04 09:09:45,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 09:09:46,410 INFO L225 Difference]: With dead ends: 179444 [2021-11-04 09:09:46,410 INFO L226 Difference]: Without dead ends: 117728 [2021-11-04 09:09:46,632 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.42ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 09:09:46,632 INFO L933 BasicCegarLoop]: 58 mSDtfsCounter, 11243 mSDsluCounter, 12640 mSDsCounter, 0 mSdLazyCounter, 27855 mSolverCounterSat, 13 mSolverCounterUnsat, 13 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 176852.51ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11256 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 27881 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 98.53ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 27855 IncrementalHoareTripleChecker+Invalid, 13 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 199859.88ms IncrementalHoareTripleChecker+Time [2021-11-04 09:09:46,633 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11256 Valid, 96 Invalid, 27881 Unknown, 0 Unchecked, 98.53ms Time], IncrementalHoareTripleChecker [13 Valid, 27855 Invalid, 13 Unknown, 0 Unchecked, 199859.88ms Time] [2021-11-04 09:09:46,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117728 states. [2021-11-04 09:09:48,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117728 to 117692. [2021-11-04 09:09:48,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117692 states, 117398 states have (on average 1.3996405390211077) internal successors, (164315), 117403 states have internal predecessors, (164315), 224 states have call successors, (224), 64 states have call predecessors, (224), 64 states have return successors, (468), 224 states have call predecessors, (468), 224 states have call successors, (468) [2021-11-04 09:09:50,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117692 states to 117692 states and 165007 transitions. [2021-11-04 09:09:50,087 INFO L78 Accepts]: Start accepts. Automaton has 117692 states and 165007 transitions. Word has length 87 [2021-11-04 09:09:50,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 09:09:50,088 INFO L470 AbstractCegarLoop]: Abstraction has 117692 states and 165007 transitions. [2021-11-04 09:09:50,088 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) [2021-11-04 09:09:50,088 INFO L276 IsEmpty]: Start isEmpty. Operand 117692 states and 165007 transitions. [2021-11-04 09:09:50,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-11-04 09:09:50,098 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 09:09:50,098 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] [2021-11-04 09:09:50,098 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-04 09:09:50,098 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)] === [2021-11-04 09:09:50,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 09:09:50,099 INFO L85 PathProgramCache]: Analyzing trace with hash -1916250634, now seen corresponding path program 1 times [2021-11-04 09:09:50,099 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 09:09:50,099 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671058333] [2021-11-04 09:09:50,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 09:09:50,099 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 09:09:50,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 09:09:50,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 09:09:50,345 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 09:09:50,345 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671058333] [2021-11-04 09:09:50,346 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671058333] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 09:09:50,346 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 09:09:50,346 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 09:09:50,346 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282891288] [2021-11-04 09:09:50,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 09:09:50,347 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 09:09:50,347 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 09:09:50,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 09:09:50,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 09:09:50,348 INFO L87 Difference]: Start difference. First operand 117692 states and 165007 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) [2021-11-04 09:09:52,430 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:10:00,920 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:10:04,593 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:10:08,754 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:10:13,622 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:10:15,674 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:10:42,782 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:10:59,773 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:11:02,418 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:11:13,628 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:11:15,147 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:11:22,626 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:11:25,200 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:11:37,939 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] Killed by 15