./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 4d014703 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-4d01470 [2021-11-02 23:15:43,637 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-02 23:15:43,639 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-02 23:15:43,671 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-02 23:15:43,672 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-02 23:15:43,674 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-02 23:15:43,675 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-02 23:15:43,677 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-02 23:15:43,678 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-02 23:15:43,681 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-02 23:15:43,682 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-02 23:15:43,683 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-02 23:15:43,683 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-02 23:15:43,685 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-02 23:15:43,686 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-02 23:15:43,688 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-02 23:15:43,689 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-02 23:15:43,689 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-02 23:15:43,691 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-02 23:15:43,695 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-02 23:15:43,696 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-02 23:15:43,697 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-02 23:15:43,698 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-02 23:15:43,698 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-02 23:15:43,703 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-02 23:15:43,703 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-02 23:15:43,703 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-02 23:15:43,704 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-02 23:15:43,704 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-02 23:15:43,705 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-02 23:15:43,705 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-02 23:15:43,706 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-02 23:15:43,707 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-02 23:15:43,708 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-02 23:15:43,709 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-02 23:15:43,709 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-02 23:15:43,709 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-02 23:15:43,710 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-02 23:15:43,710 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-02 23:15:43,710 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-02 23:15:43,711 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-02 23:15:43,711 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-02 23:15:43,736 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-02 23:15:43,736 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-02 23:15:43,736 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-02 23:15:43,737 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-02 23:15:43,738 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-02 23:15:43,738 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-02 23:15:43,738 INFO L138 SettingsManager]: * Use SBE=true [2021-11-02 23:15:43,738 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-02 23:15:43,738 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-02 23:15:43,738 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-02 23:15:43,739 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-02 23:15:43,739 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-02 23:15:43,739 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-02 23:15:43,739 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-02 23:15:43,740 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-02 23:15:43,740 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-02 23:15:43,740 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-02 23:15:43,740 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-02 23:15:43,747 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-02 23:15:43,747 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 23:15:43,748 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-02 23:15:43,748 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-02 23:15:43,748 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-02 23:15:43,748 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-02 23:15:43,748 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-02 23:15:43,748 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-02 23:15:43,748 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-02 23:15:43,749 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-02 23:15:43,749 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-02 23:15:43,749 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> db9df3fec87d6b9c36faf813a91a46a081cd02854907cc9bcc81712e1820716c [2021-11-02 23:15:43,948 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-02 23:15:43,971 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-02 23:15:43,972 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-02 23:15:43,973 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-02 23:15:43,975 INFO L275 PluginConnector]: CDTParser initialized [2021-11-02 23:15:43,976 INFO L432 ainManager$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 [2021-11-02 23:15:44,032 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0e75d186/3ac692aeab3a45e59636e2e67d0d2c86/FLAG548aa4c54 [2021-11-02 23:15:44,643 INFO L306 CDTParser]: Found 1 translation units. [2021-11-02 23:15:44,644 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 [2021-11-02 23:15:44,679 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0e75d186/3ac692aeab3a45e59636e2e67d0d2c86/FLAG548aa4c54 [2021-11-02 23:15:45,039 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0e75d186/3ac692aeab3a45e59636e2e67d0d2c86 [2021-11-02 23:15:45,041 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-02 23:15:45,042 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-02 23:15:45,047 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-02 23:15:45,047 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-02 23:15:45,050 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-02 23:15:45,050 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:15:45" (1/1) ... [2021-11-02 23:15:45,051 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49c6e72f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:15:45, skipping insertion in model container [2021-11-02 23:15:45,051 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:15:45" (1/1) ... [2021-11-02 23:15:45,056 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-02 23:15:45,172 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-02 23:15:46,637 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] [2021-11-02 23:15:46,642 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] [2021-11-02 23:15:46,646 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 23:15:46,683 INFO L203 MainTranslator]: Completed pre-run [2021-11-02 23:15:47,000 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] [2021-11-02 23:15:47,001 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] [2021-11-02 23:15:47,003 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 23:15:47,127 INFO L208 MainTranslator]: Completed translation [2021-11-02 23:15:47,128 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:15:47 WrapperNode [2021-11-02 23:15:47,128 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-02 23:15:47,129 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-02 23:15:47,129 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-02 23:15:47,129 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-02 23:15:47,134 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:15:47" (1/1) ... [2021-11-02 23:15:47,215 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:15:47" (1/1) ... [2021-11-02 23:15:48,383 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-02 23:15:48,384 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-02 23:15:48,384 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-02 23:15:48,384 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-02 23:15:48,390 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:15:47" (1/1) ... [2021-11-02 23:15:48,390 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:15:47" (1/1) ... [2021-11-02 23:15:48,782 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:15:47" (1/1) ... [2021-11-02 23:15:48,783 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:15:47" (1/1) ... [2021-11-02 23:15:49,436 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:15:47" (1/1) ... [2021-11-02 23:15:49,583 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:15:47" (1/1) ... [2021-11-02 23:15:49,666 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:15:47" (1/1) ... [2021-11-02 23:15:49,924 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-02 23:15:49,925 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-02 23:15:49,925 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-02 23:15:49,926 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-02 23:15:49,926 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:15:47" (1/1) ... [2021-11-02 23:15:49,931 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 23:15:49,939 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-02 23:15:49,949 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) [2021-11-02 23:15:49,979 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 [2021-11-02 23:15:49,988 INFO L130 BoogieDeclarations]: Found specification of procedure stv06xx_init_controls [2021-11-02 23:15:49,990 INFO L138 BoogieDeclarations]: Found implementation of procedure stv06xx_init_controls [2021-11-02 23:15:49,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-02 23:15:49,990 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-02 23:15:49,990 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-02 23:15:49,990 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-02 23:15:49,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-02 23:15:49,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-02 23:15:49,991 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-02 23:15:49,991 INFO L130 BoogieDeclarations]: Found specification of procedure stv06xx_init [2021-11-02 23:15:49,991 INFO L138 BoogieDeclarations]: Found implementation of procedure stv06xx_init [2021-11-02 23:15:49,991 INFO L130 BoogieDeclarations]: Found specification of procedure stv06xx_start [2021-11-02 23:15:49,991 INFO L138 BoogieDeclarations]: Found implementation of procedure stv06xx_start [2021-11-02 23:15:49,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-02 23:15:49,991 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-02 23:15:49,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-02 23:15:49,991 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-02 23:15:49,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-02 23:15:49,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-02 23:15:49,992 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-02 23:15:49,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-02 23:16:42,863 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#6: ldv_switch_1_#res := 0; [2021-11-02 23:16:42,863 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#7: ldv_switch_1_#res := 0; [2021-11-02 23:16:42,863 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#4: ldv_switch_1_#res := 0; [2021-11-02 23:16:42,864 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#5: ldv_switch_1_#res := 0; [2021-11-02 23:16:42,864 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-02 23:16:42,864 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2021-11-02 23:16:42,864 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-02 23:16:42,864 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-02 23:16:42,864 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#8: ldv_switch_1_#res := 0; [2021-11-02 23:16:42,864 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#9: ldv_switch_1_#res := 0; [2021-11-02 23:16:42,865 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#10: ldv_switch_1_#res := 0; [2021-11-02 23:16:42,865 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-02 23:16:42,866 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0; [2021-11-02 23:16:42,866 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-02 23:16:44,658 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-02 23:16:44,659 INFO L299 CfgBuilder]: Removed 6763 assume(true) statements. [2021-11-02 23:16:44,667 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:16:44 BoogieIcfgContainer [2021-11-02 23:16:44,667 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-02 23:16:44,669 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-02 23:16:44,669 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-02 23:16:44,671 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-02 23:16:44,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 11:15:45" (1/3) ... [2021-11-02 23:16:44,672 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18b2198a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:16:44, skipping insertion in model container [2021-11-02 23:16:44,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:15:47" (2/3) ... [2021-11-02 23:16:44,673 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18b2198a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:16:44, skipping insertion in model container [2021-11-02 23:16:44,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:16:44" (3/3) ... [2021-11-02 23:16:44,674 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-usb-gspca-stv06xx-gspca_stv06xx.cil.i [2021-11-02 23:16:44,677 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-02 23:16:44,678 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-11-02 23:16:44,729 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-02 23:16:44,734 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 [2021-11-02 23:16:44,734 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-02 23:16:44,824 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) [2021-11-02 23:16:44,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-02 23:16:44,848 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 23:16:44,849 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] [2021-11-02 23:16:44,849 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)] === [2021-11-02 23:16:44,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:16:44,854 INFO L85 PathProgramCache]: Analyzing trace with hash 629780618, now seen corresponding path program 1 times [2021-11-02 23:16:44,859 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:16:44,860 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098902524] [2021-11-02 23:16:44,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:16:44,861 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:16:45,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:16:45,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:16:45,481 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:16:45,481 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098902524] [2021-11-02 23:16:45,481 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098902524] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:16:45,481 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:16:45,482 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 23:16:45,483 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030028985] [2021-11-02 23:16:45,485 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 23:16:45,486 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:16:45,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 23:16:45,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:16:45,530 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) [2021-11-02 23:16:47,610 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:16:51,394 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:16:53,725 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:16:58,177 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:17:10,712 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:17:18,551 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:17:23,231 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:17:33,228 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:17:39,239 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:17:40,945 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:17:43,497 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:17:45,024 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:17:54,287 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:17:57,369 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:18:01,561 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:18:15,862 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:18:24,152 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:18:28,278 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:18:41,800 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:18:46,498 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 [] [2021-11-02 23:18:51,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:18:51,335 INFO L93 Difference]: Finished difference Result 25741 states and 36235 transitions. [2021-11-02 23:18:51,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 23:18:51,338 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 [2021-11-02 23:18:51,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:18:51,469 INFO L225 Difference]: With dead ends: 25741 [2021-11-02 23:18:51,470 INFO L226 Difference]: Without dead ends: 16172 [2021-11-02 23:18:51,554 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.06ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:18:51,559 INFO L933 BasicCegarLoop]: 255 mSDtfsCounter, 10110 mSDsluCounter, 13068 mSDsCounter, 0 mSdLazyCounter, 25755 mSolverCounterSat, 13 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 117068.39ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10123 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 25778 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 78.55ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 25755 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 124380.46ms IncrementalHoareTripleChecker+Time [2021-11-02 23:18:51,560 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10123 Valid, 491 Invalid, 25778 Unknown, 0 Unchecked, 78.55ms Time], IncrementalHoareTripleChecker [13 Valid, 25755 Invalid, 10 Unknown, 0 Unchecked, 124380.46ms Time] [2021-11-02 23:18:51,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16172 states. [2021-11-02 23:18:51,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16172 to 16144. [2021-11-02 23:18:51,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16144 states, 16092 states have (on average 1.3951652995277157) internal successors, (22451), 16097 states have internal predecessors, (22451), 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) [2021-11-02 23:18:52,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16144 states to 16144 states and 22540 transitions. [2021-11-02 23:18:52,079 INFO L78 Accepts]: Start accepts. Automaton has 16144 states and 22540 transitions. Word has length 81 [2021-11-02 23:18:52,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:18:52,081 INFO L470 AbstractCegarLoop]: Abstraction has 16144 states and 22540 transitions. [2021-11-02 23:18:52,082 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) [2021-11-02 23:18:52,083 INFO L276 IsEmpty]: Start isEmpty. Operand 16144 states and 22540 transitions. [2021-11-02 23:18:52,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-02 23:18:52,092 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 23:18:52,093 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] [2021-11-02 23:18:52,094 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-02 23:18:52,096 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)] === [2021-11-02 23:18:52,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:18:52,097 INFO L85 PathProgramCache]: Analyzing trace with hash 1926348868, now seen corresponding path program 1 times [2021-11-02 23:18:52,097 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:18:52,098 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619146460] [2021-11-02 23:18:52,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:18:52,099 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:18:52,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:18:52,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:18:52,430 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:18:52,430 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619146460] [2021-11-02 23:18:52,430 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619146460] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:18:52,430 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:18:52,431 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 23:18:52,431 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813699570] [2021-11-02 23:18:52,432 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 23:18:52,432 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:18:52,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 23:18:52,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:18:52,433 INFO L87 Difference]: Start difference. First operand 16144 states and 22540 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) [2021-11-02 23:18:54,490 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 [] [2021-11-02 23:18:58,701 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:19:00,765 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:19:05,654 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:19:14,940 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:19:23,262 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:19:30,334 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:19:39,480 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:19:48,358 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:19:56,500 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:20:07,321 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:20:15,524 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:20:19,349 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:20:25,672 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:20:34,653 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:21:10,158 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:21:20,777 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:21:21,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:21:21,889 INFO L93 Difference]: Finished difference Result 47455 states and 66349 transitions. [2021-11-02 23:21:21,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 23:21:21,890 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 [2021-11-02 23:21:21,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:21:22,067 INFO L225 Difference]: With dead ends: 47455 [2021-11-02 23:21:22,067 INFO L226 Difference]: Without dead ends: 31451 [2021-11-02 23:21:22,181 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.55ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:21:22,182 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 11894 mSDsluCounter, 12648 mSDsCounter, 0 mSdLazyCounter, 25347 mSolverCounterSat, 7 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 136491.67ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11901 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 25362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 89.04ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 25347 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 147904.41ms IncrementalHoareTripleChecker+Time [2021-11-02 23:21:22,183 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11901 Valid, 89 Invalid, 25362 Unknown, 0 Unchecked, 89.04ms Time], IncrementalHoareTripleChecker [7 Valid, 25347 Invalid, 8 Unknown, 0 Unchecked, 147904.41ms Time] [2021-11-02 23:21:22,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31451 states. [2021-11-02 23:21:22,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31451 to 31420. [2021-11-02 23:21:22,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31420 states, 31340 states have (on average 1.3970006381620932) internal successors, (43782), 31345 states have internal predecessors, (43782), 58 states have call successors, (58), 16 states have call predecessors, (58), 16 states have return successors, (85), 58 states have call predecessors, (85), 58 states have call successors, (85) [2021-11-02 23:21:23,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31420 states to 31420 states and 43925 transitions. [2021-11-02 23:21:23,005 INFO L78 Accepts]: Start accepts. Automaton has 31420 states and 43925 transitions. Word has length 86 [2021-11-02 23:21:23,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:21:23,007 INFO L470 AbstractCegarLoop]: Abstraction has 31420 states and 43925 transitions. [2021-11-02 23:21:23,007 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) [2021-11-02 23:21:23,007 INFO L276 IsEmpty]: Start isEmpty. Operand 31420 states and 43925 transitions. [2021-11-02 23:21:23,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-02 23:21:23,013 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 23:21:23,013 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] [2021-11-02 23:21:23,013 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-02 23:21:23,014 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)] === [2021-11-02 23:21:23,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:21:23,014 INFO L85 PathProgramCache]: Analyzing trace with hash -1064908927, now seen corresponding path program 1 times [2021-11-02 23:21:23,014 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:21:23,014 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454000831] [2021-11-02 23:21:23,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:21:23,015 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:21:23,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:21:23,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:21:23,218 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:21:23,218 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454000831] [2021-11-02 23:21:23,218 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454000831] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:21:23,218 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:21:23,219 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 23:21:23,219 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533415425] [2021-11-02 23:21:23,219 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 23:21:23,219 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:21:23,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 23:21:23,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:21:23,220 INFO L87 Difference]: Start difference. First operand 31420 states and 43925 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) [2021-11-02 23:21:25,273 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:21:33,137 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:21:39,573 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:21:44,474 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:21:46,525 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:21:51,976 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-02 23:22:11,618 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:22:25,310 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:22:30,447 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:22:43,204 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:22:59,449 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:23:13,638 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:23:20,683 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:23:24,591 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:23:57,095 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 [] [2021-11-02 23:24:09,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:24:09,031 INFO L93 Difference]: Finished difference Result 93170 states and 130466 transitions. [2021-11-02 23:24:09,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 23:24:09,032 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 [2021-11-02 23:24:09,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:24:09,383 INFO L225 Difference]: With dead ends: 93170 [2021-11-02 23:24:09,383 INFO L226 Difference]: Without dead ends: 61890 [2021-11-02 23:24:09,674 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.50ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:24:09,676 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 12040 mSDsluCounter, 12643 mSDsCounter, 0 mSdLazyCounter, 27678 mSolverCounterSat, 13 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 148556.37ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 12052 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 27700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 77.65ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 27678 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 163567.40ms IncrementalHoareTripleChecker+Time [2021-11-02 23:24:09,677 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12052 Valid, 94 Invalid, 27700 Unknown, 0 Unchecked, 77.65ms Time], IncrementalHoareTripleChecker [13 Valid, 27678 Invalid, 9 Unknown, 0 Unchecked, 163567.40ms Time] [2021-11-02 23:24:09,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61890 states. [2021-11-02 23:24:10,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61890 to 61849. [2021-11-02 23:24:10,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61849 states, 61699 states have (on average 1.3992123048995933) internal successors, (86330), 61704 states have internal predecessors, (86330), 112 states have call successors, (112), 32 states have call predecessors, (112), 32 states have return successors, (175), 112 states have call predecessors, (175), 112 states have call successors, (175) [2021-11-02 23:24:11,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61849 states to 61849 states and 86617 transitions. [2021-11-02 23:24:11,074 INFO L78 Accepts]: Start accepts. Automaton has 61849 states and 86617 transitions. Word has length 87 [2021-11-02 23:24:11,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:24:11,075 INFO L470 AbstractCegarLoop]: Abstraction has 61849 states and 86617 transitions. [2021-11-02 23:24:11,075 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) [2021-11-02 23:24:11,076 INFO L276 IsEmpty]: Start isEmpty. Operand 61849 states and 86617 transitions. [2021-11-02 23:24:11,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-02 23:24:11,082 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 23:24:11,082 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] [2021-11-02 23:24:11,082 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-02 23:24:11,083 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)] === [2021-11-02 23:24:11,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:24:11,083 INFO L85 PathProgramCache]: Analyzing trace with hash 38884024, now seen corresponding path program 1 times [2021-11-02 23:24:11,083 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:24:11,084 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323195573] [2021-11-02 23:24:11,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:24:11,084 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:24:11,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:24:11,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:24:11,570 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:24:11,570 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323195573] [2021-11-02 23:24:11,570 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323195573] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:24:11,571 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:24:11,571 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 23:24:11,571 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305758047] [2021-11-02 23:24:11,572 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 23:24:11,572 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:24:11,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 23:24:11,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:24:11,575 INFO L87 Difference]: Start difference. First operand 61849 states and 86617 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) [2021-11-02 23:24:13,634 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 [] [2021-11-02 23:24:20,446 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:24:24,473 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:24:31,488 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:24:36,604 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:24:38,675 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:24:45,917 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:24:54,688 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:25:06,519 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:25:14,378 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:25:32,272 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:25:43,825 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:25:47,178 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:26:00,292 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:26:06,448 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:26:13,201 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:26:22,826 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:26:35,473 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:26:45,922 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:27:19,420 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:27:21,845 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:27:25,198 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 [] [2021-11-02 23:27:33,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:27:33,929 INFO L93 Difference]: Finished difference Result 179400 states and 251483 transitions. [2021-11-02 23:27:33,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 23:27:33,929 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 [2021-11-02 23:27:33,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:27:34,725 INFO L225 Difference]: With dead ends: 179400 [2021-11-02 23:27:34,726 INFO L226 Difference]: Without dead ends: 117691 [2021-11-02 23:27:34,947 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.29ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:27:34,948 INFO L933 BasicCegarLoop]: 58 mSDtfsCounter, 11223 mSDsluCounter, 12634 mSDsCounter, 0 mSdLazyCounter, 27838 mSolverCounterSat, 13 mSolverCounterUnsat, 15 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 177198.05ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11236 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 27866 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 115.44ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 27838 IncrementalHoareTripleChecker+Invalid, 15 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 198630.86ms IncrementalHoareTripleChecker+Time [2021-11-02 23:27:34,948 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11236 Valid, 96 Invalid, 27866 Unknown, 0 Unchecked, 115.44ms Time], IncrementalHoareTripleChecker [13 Valid, 27838 Invalid, 15 Unknown, 0 Unchecked, 198630.86ms Time] [2021-11-02 23:27:35,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117691 states. [2021-11-02 23:27:37,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117691 to 117637. [2021-11-02 23:27:37,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117637 states, 117343 states have (on average 1.3996403705376546) internal successors, (164238), 117348 states have internal predecessors, (164238), 224 states have call successors, (224), 64 states have call predecessors, (224), 64 states have return successors, (426), 224 states have call predecessors, (426), 224 states have call successors, (426) [2021-11-02 23:27:38,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117637 states to 117637 states and 164888 transitions. [2021-11-02 23:27:38,592 INFO L78 Accepts]: Start accepts. Automaton has 117637 states and 164888 transitions. Word has length 87 [2021-11-02 23:27:38,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:27:38,593 INFO L470 AbstractCegarLoop]: Abstraction has 117637 states and 164888 transitions. [2021-11-02 23:27:38,593 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) [2021-11-02 23:27:38,593 INFO L276 IsEmpty]: Start isEmpty. Operand 117637 states and 164888 transitions. [2021-11-02 23:27:38,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-11-02 23:27:38,598 INFO L506 BasicCegarLoop]: Found error trace [2021-11-02 23:27:38,598 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] [2021-11-02 23:27:38,598 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-02 23:27:38,599 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)] === [2021-11-02 23:27:38,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:27:38,599 INFO L85 PathProgramCache]: Analyzing trace with hash -1916250634, now seen corresponding path program 1 times [2021-11-02 23:27:38,599 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:27:38,599 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526080921] [2021-11-02 23:27:38,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:27:38,600 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:27:38,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:27:38,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:27:38,893 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:27:38,893 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526080921] [2021-11-02 23:27:38,893 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526080921] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:27:38,893 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:27:38,893 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 23:27:38,893 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327457407] [2021-11-02 23:27:38,893 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 23:27:38,894 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:27:38,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 23:27:38,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:27:38,894 INFO L87 Difference]: Start difference. First operand 117637 states and 164888 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) [2021-11-02 23:27:40,966 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:27:44,246 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:27:50,075 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:27:55,910 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:28:00,289 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:28:02,330 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:28:31,466 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:29:01,777 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:29:09,979 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:29:18,811 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:29:25,029 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-02 23:29:35,320 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 [] Killed by 15