./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-rc-imon.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5f08f0f0 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-kernel-locking-mutex_drivers-media-rc-imon.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 22e4387c36ff25592bf6c6537ff8412eacb18bdab6752c222fa8ef2a1ca9dbb8 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5f08f0f [2021-11-05 20:18:39,809 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-05 20:18:39,811 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-05 20:18:39,847 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-05 20:18:39,847 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-05 20:18:39,850 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-05 20:18:39,851 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-05 20:18:39,855 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-05 20:18:39,857 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-05 20:18:39,861 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-05 20:18:39,862 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-05 20:18:39,863 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-05 20:18:39,863 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-05 20:18:39,865 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-05 20:18:39,866 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-05 20:18:39,869 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-05 20:18:39,871 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-05 20:18:39,871 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-05 20:18:39,873 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-05 20:18:39,875 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-05 20:18:39,878 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-05 20:18:39,878 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-05 20:18:39,879 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-05 20:18:39,880 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-05 20:18:39,881 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-05 20:18:39,883 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-05 20:18:39,883 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-05 20:18:39,884 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-05 20:18:39,885 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-05 20:18:39,885 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-05 20:18:39,885 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-05 20:18:39,886 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-05 20:18:39,887 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-05 20:18:39,887 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-05 20:18:39,888 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-05 20:18:39,888 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-05 20:18:39,889 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-05 20:18:39,889 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-05 20:18:39,889 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-05 20:18:39,890 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-05 20:18:39,891 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-05 20:18:39,894 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-05 20:18:39,912 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-05 20:18:39,913 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-05 20:18:39,914 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-05 20:18:39,914 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-05 20:18:39,915 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-05 20:18:39,915 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-05 20:18:39,915 INFO L138 SettingsManager]: * Use SBE=true [2021-11-05 20:18:39,916 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-05 20:18:39,916 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-05 20:18:39,916 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-05 20:18:39,916 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-05 20:18:39,917 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-05 20:18:39,917 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-05 20:18:39,917 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-05 20:18:39,917 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-05 20:18:39,917 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-05 20:18:39,917 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-05 20:18:39,917 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-05 20:18:39,917 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-05 20:18:39,918 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 20:18:39,918 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-05 20:18:39,918 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-05 20:18:39,918 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-05 20:18:39,918 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-05 20:18:39,918 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-05 20:18:39,918 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-05 20:18:39,919 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-05 20:18:39,919 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-05 20:18:39,919 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-05 20:18:39,919 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 22e4387c36ff25592bf6c6537ff8412eacb18bdab6752c222fa8ef2a1ca9dbb8 [2021-11-05 20:18:40,167 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-05 20:18:40,189 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-05 20:18:40,191 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-05 20:18:40,192 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-05 20:18:40,193 INFO L275 PluginConnector]: CDTParser initialized [2021-11-05 20:18:40,194 INFO L432 ainManager$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-kernel-locking-mutex_drivers-media-rc-imon.cil.i [2021-11-05 20:18:40,242 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/acf74a6ab/9fc7ed0cef4e4b24b1d78ff13a7ae4b5/FLAG816ab6827 [2021-11-05 20:18:40,869 INFO L306 CDTParser]: Found 1 translation units. [2021-11-05 20:18:40,870 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-rc-imon.cil.i [2021-11-05 20:18:40,914 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/acf74a6ab/9fc7ed0cef4e4b24b1d78ff13a7ae4b5/FLAG816ab6827 [2021-11-05 20:18:41,271 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/acf74a6ab/9fc7ed0cef4e4b24b1d78ff13a7ae4b5 [2021-11-05 20:18:41,282 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-05 20:18:41,284 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-05 20:18:41,295 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-05 20:18:41,296 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-05 20:18:41,298 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-05 20:18:41,299 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 08:18:41" (1/1) ... [2021-11-05 20:18:41,300 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@701772bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:18:41, skipping insertion in model container [2021-11-05 20:18:41,300 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 08:18:41" (1/1) ... [2021-11-05 20:18:41,304 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-05 20:18:41,394 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-05 20:18:42,786 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-kernel-locking-mutex_drivers-media-rc-imon.cil.i[284136,284149] [2021-11-05 20:18:42,789 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-kernel-locking-mutex_drivers-media-rc-imon.cil.i[284302,284315] [2021-11-05 20:18:42,790 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-kernel-locking-mutex_drivers-media-rc-imon.cil.i[284466,284479] [2021-11-05 20:18:42,790 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-kernel-locking-mutex_drivers-media-rc-imon.cil.i[284631,284644] [2021-11-05 20:18:42,814 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 20:18:42,849 INFO L203 MainTranslator]: Completed pre-run [2021-11-05 20:18:43,106 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-kernel-locking-mutex_drivers-media-rc-imon.cil.i[284136,284149] [2021-11-05 20:18:43,113 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-kernel-locking-mutex_drivers-media-rc-imon.cil.i[284302,284315] [2021-11-05 20:18:43,113 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-kernel-locking-mutex_drivers-media-rc-imon.cil.i[284466,284479] [2021-11-05 20:18:43,114 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-kernel-locking-mutex_drivers-media-rc-imon.cil.i[284631,284644] [2021-11-05 20:18:43,116 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 20:18:43,183 INFO L208 MainTranslator]: Completed translation [2021-11-05 20:18:43,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:18:43 WrapperNode [2021-11-05 20:18:43,184 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-05 20:18:43,185 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-05 20:18:43,185 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-05 20:18:43,185 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-05 20:18:43,189 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:18:43" (1/1) ... [2021-11-05 20:18:43,276 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:18:43" (1/1) ... [2021-11-05 20:18:43,623 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-05 20:18:43,624 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-05 20:18:43,624 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-05 20:18:43,624 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-05 20:18:43,630 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:18:43" (1/1) ... [2021-11-05 20:18:43,631 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:18:43" (1/1) ... [2021-11-05 20:18:43,689 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:18:43" (1/1) ... [2021-11-05 20:18:43,689 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:18:43" (1/1) ... [2021-11-05 20:18:43,896 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:18:43" (1/1) ... [2021-11-05 20:18:43,950 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:18:43" (1/1) ... [2021-11-05 20:18:43,971 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:18:43" (1/1) ... [2021-11-05 20:18:44,007 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-05 20:18:44,009 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-05 20:18:44,009 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-05 20:18:44,009 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-05 20:18:44,010 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:18:43" (1/1) ... [2021-11-05 20:18:44,015 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 20:18:44,023 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 20:18:44,060 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) [2021-11-05 20:18:44,105 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 [2021-11-05 20:18:44,125 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-11-05 20:18:44,125 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-05 20:18:44,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-05 20:18:44,125 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-05 20:18:44,125 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-05 20:18:44,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-05 20:18:44,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-05 20:18:44,139 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-05 20:18:44,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-05 20:18:44,140 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-05 20:18:44,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-05 20:18:44,140 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-05 20:18:44,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-05 20:18:44,140 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-05 20:18:44,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-05 20:18:44,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-05 20:18:44,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-05 20:20:03,295 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-05 20:20:03,296 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#3: ldv_switch_0_#res := 0; [2021-11-05 20:20:03,296 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#4: ldv_switch_0_#res := 0; [2021-11-05 20:20:03,296 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-05 20:20:03,296 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-05 20:20:03,296 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-05 20:20:03,313 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-05 20:20:03,313 INFO L299 CfgBuilder]: Removed 2079 assume(true) statements. [2021-11-05 20:20:03,316 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 08:20:03 BoogieIcfgContainer [2021-11-05 20:20:03,317 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-05 20:20:03,318 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-05 20:20:03,318 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-05 20:20:03,320 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-05 20:20:03,320 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 08:18:41" (1/3) ... [2021-11-05 20:20:03,320 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16f51074 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 08:20:03, skipping insertion in model container [2021-11-05 20:20:03,321 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 08:18:43" (2/3) ... [2021-11-05 20:20:03,321 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16f51074 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 08:20:03, skipping insertion in model container [2021-11-05 20:20:03,321 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 08:20:03" (3/3) ... [2021-11-05 20:20:03,322 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-rc-imon.cil.i [2021-11-05 20:20:03,325 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-05 20:20:03,325 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 66 error locations. [2021-11-05 20:20:03,362 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-05 20:20:03,366 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 [2021-11-05 20:20:03,366 INFO L340 AbstractCegarLoop]: Starting to check reachability of 66 error locations. [2021-11-05 20:20:03,403 INFO L276 IsEmpty]: Start isEmpty. Operand has 2345 states, 2279 states have (on average 1.3878894251864853) internal successors, (3163), 2344 states have internal predecessors, (3163), 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) [2021-11-05 20:20:03,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-05 20:20:03,417 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:20:03,418 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] [2021-11-05 20:20:03,418 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 63 more)] === [2021-11-05 20:20:03,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:20:03,422 INFO L85 PathProgramCache]: Analyzing trace with hash 498865296, now seen corresponding path program 1 times [2021-11-05 20:20:03,428 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:20:03,429 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650144783] [2021-11-05 20:20:03,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:20:03,430 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:20:03,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:20:04,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 20:20:04,257 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:20:04,257 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650144783] [2021-11-05 20:20:04,258 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650144783] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:20:04,258 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:20:04,258 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:20:04,259 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339182985] [2021-11-05 20:20:04,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:20:04,262 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:20:04,262 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:20:04,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:20:04,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:20:04,283 INFO L87 Difference]: Start difference. First operand has 2345 states, 2279 states have (on average 1.3878894251864853) internal successors, (3163), 2344 states have internal predecessors, (3163), 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) Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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) [2021-11-05 20:20:06,402 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 20:20:06,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:20:06,950 INFO L93 Difference]: Finished difference Result 6068 states and 8180 transitions. [2021-11-05 20:20:06,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:20:06,953 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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 72 [2021-11-05 20:20:06,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:20:06,973 INFO L225 Difference]: With dead ends: 6068 [2021-11-05 20:20:06,973 INFO L226 Difference]: Without dead ends: 3655 [2021-11-05 20:20:06,983 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 23.53ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:20:06,988 INFO L933 BasicCegarLoop]: 2808 mSDtfsCounter, 2220 mSDsluCounter, 2775 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2386.99ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2220 SdHoareTripleChecker+Valid, 5583 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.96ms SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2506.37ms IncrementalHoareTripleChecker+Time [2021-11-05 20:20:06,989 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2220 Valid, 5583 Invalid, 61 Unknown, 0 Unchecked, 14.96ms Time], IncrementalHoareTripleChecker [12 Valid, 48 Invalid, 1 Unknown, 0 Unchecked, 2506.37ms Time] [2021-11-05 20:20:07,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3655 states. [2021-11-05 20:20:07,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3655 to 3493. [2021-11-05 20:20:07,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3493 states, 3427 states have (on average 1.2847971987160782) internal successors, (4403), 3492 states have internal predecessors, (4403), 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) [2021-11-05 20:20:07,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3493 states to 3493 states and 4403 transitions. [2021-11-05 20:20:07,119 INFO L78 Accepts]: Start accepts. Automaton has 3493 states and 4403 transitions. Word has length 72 [2021-11-05 20:20:07,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:20:07,121 INFO L470 AbstractCegarLoop]: Abstraction has 3493 states and 4403 transitions. [2021-11-05 20:20:07,121 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 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) [2021-11-05 20:20:07,122 INFO L276 IsEmpty]: Start isEmpty. Operand 3493 states and 4403 transitions. [2021-11-05 20:20:07,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-05 20:20:07,126 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:20:07,126 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] [2021-11-05 20:20:07,127 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-05 20:20:07,127 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 63 more)] === [2021-11-05 20:20:07,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:20:07,129 INFO L85 PathProgramCache]: Analyzing trace with hash 331656513, now seen corresponding path program 1 times [2021-11-05 20:20:07,129 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:20:07,129 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122753054] [2021-11-05 20:20:07,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:20:07,129 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:20:07,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:20:07,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 20:20:07,445 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:20:07,445 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122753054] [2021-11-05 20:20:07,445 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122753054] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:20:07,445 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:20:07,446 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:20:07,446 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164839712] [2021-11-05 20:20:07,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:20:07,447 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:20:07,447 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:20:07,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:20:07,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:20:07,447 INFO L87 Difference]: Start difference. First operand 3493 states and 4403 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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) [2021-11-05 20:20:09,537 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 [] [2021-11-05 20:20:10,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:20:10,109 INFO L93 Difference]: Finished difference Result 9543 states and 12085 transitions. [2021-11-05 20:20:10,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:20:10,111 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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 73 [2021-11-05 20:20:10,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:20:10,132 INFO L225 Difference]: With dead ends: 9543 [2021-11-05 20:20:10,132 INFO L226 Difference]: Without dead ends: 6206 [2021-11-05 20:20:10,140 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 20.21ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:20:10,141 INFO L933 BasicCegarLoop]: 2792 mSDtfsCounter, 1915 mSDsluCounter, 2458 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2363.72ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1915 SdHoareTripleChecker+Valid, 5250 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.41ms SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2545.62ms IncrementalHoareTripleChecker+Time [2021-11-05 20:20:10,142 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1915 Valid, 5250 Invalid, 61 Unknown, 0 Unchecked, 8.41ms Time], IncrementalHoareTripleChecker [12 Valid, 48 Invalid, 1 Unknown, 0 Unchecked, 2545.62ms Time] [2021-11-05 20:20:10,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6206 states. [2021-11-05 20:20:10,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6206 to 6046. [2021-11-05 20:20:10,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6046 states, 5980 states have (on average 1.2911371237458193) internal successors, (7721), 6045 states have internal predecessors, (7721), 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) [2021-11-05 20:20:10,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6046 states to 6046 states and 7721 transitions. [2021-11-05 20:20:10,269 INFO L78 Accepts]: Start accepts. Automaton has 6046 states and 7721 transitions. Word has length 73 [2021-11-05 20:20:10,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:20:10,270 INFO L470 AbstractCegarLoop]: Abstraction has 6046 states and 7721 transitions. [2021-11-05 20:20:10,271 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 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) [2021-11-05 20:20:10,271 INFO L276 IsEmpty]: Start isEmpty. Operand 6046 states and 7721 transitions. [2021-11-05 20:20:10,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-05 20:20:10,272 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:20:10,272 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] [2021-11-05 20:20:10,272 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-05 20:20:10,272 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 63 more)] === [2021-11-05 20:20:10,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:20:10,273 INFO L85 PathProgramCache]: Analyzing trace with hash -1304334253, now seen corresponding path program 1 times [2021-11-05 20:20:10,273 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:20:10,273 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136255087] [2021-11-05 20:20:10,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:20:10,284 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:20:10,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:20:10,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 20:20:10,535 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:20:10,535 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136255087] [2021-11-05 20:20:10,535 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136255087] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:20:10,535 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:20:10,535 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:20:10,535 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533045522] [2021-11-05 20:20:10,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:20:10,535 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:20:10,536 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:20:10,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:20:10,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:20:10,536 INFO L87 Difference]: Start difference. First operand 6046 states and 7721 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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) [2021-11-05 20:20:12,631 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 [] [2021-11-05 20:20:13,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:20:13,019 INFO L93 Difference]: Finished difference Result 13119 states and 16767 transitions. [2021-11-05 20:20:13,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:20:13,019 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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 75 [2021-11-05 20:20:13,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:20:13,040 INFO L225 Difference]: With dead ends: 13119 [2021-11-05 20:20:13,041 INFO L226 Difference]: Without dead ends: 7229 [2021-11-05 20:20:13,050 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 23.31ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:20:13,054 INFO L933 BasicCegarLoop]: 2492 mSDtfsCounter, 1511 mSDsluCounter, 2449 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2270.13ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1511 SdHoareTripleChecker+Valid, 4941 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.68ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2361.52ms IncrementalHoareTripleChecker+Time [2021-11-05 20:20:13,055 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1511 Valid, 4941 Invalid, 44 Unknown, 0 Unchecked, 6.68ms Time], IncrementalHoareTripleChecker [9 Valid, 34 Invalid, 1 Unknown, 0 Unchecked, 2361.52ms Time] [2021-11-05 20:20:13,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7229 states. [2021-11-05 20:20:13,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7229 to 7171. [2021-11-05 20:20:13,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7171 states, 7105 states have (on average 1.29247009148487) internal successors, (9183), 7170 states have internal predecessors, (9183), 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) [2021-11-05 20:20:13,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7171 states to 7171 states and 9183 transitions. [2021-11-05 20:20:13,204 INFO L78 Accepts]: Start accepts. Automaton has 7171 states and 9183 transitions. Word has length 75 [2021-11-05 20:20:13,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:20:13,206 INFO L470 AbstractCegarLoop]: Abstraction has 7171 states and 9183 transitions. [2021-11-05 20:20:13,206 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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) [2021-11-05 20:20:13,206 INFO L276 IsEmpty]: Start isEmpty. Operand 7171 states and 9183 transitions. [2021-11-05 20:20:13,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-05 20:20:13,208 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:20:13,208 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] [2021-11-05 20:20:13,208 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-05 20:20:13,209 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 63 more)] === [2021-11-05 20:20:13,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:20:13,210 INFO L85 PathProgramCache]: Analyzing trace with hash -181662950, now seen corresponding path program 1 times [2021-11-05 20:20:13,210 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:20:13,212 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706587468] [2021-11-05 20:20:13,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:20:13,212 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:20:13,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:20:13,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 20:20:13,455 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:20:13,455 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706587468] [2021-11-05 20:20:13,455 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706587468] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:20:13,456 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:20:13,456 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:20:13,456 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248926148] [2021-11-05 20:20:13,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:20:13,456 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:20:13,456 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:20:13,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:20:13,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:20:13,457 INFO L87 Difference]: Start difference. First operand 7171 states and 9183 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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) [2021-11-05 20:20:15,563 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 20:20:16,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:20:16,026 INFO L93 Difference]: Finished difference Result 17367 states and 22307 transitions. [2021-11-05 20:20:16,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:20:16,027 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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 78 [2021-11-05 20:20:16,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:20:16,056 INFO L225 Difference]: With dead ends: 17367 [2021-11-05 20:20:16,057 INFO L226 Difference]: Without dead ends: 10352 [2021-11-05 20:20:16,068 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 21.88ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:20:16,069 INFO L933 BasicCegarLoop]: 2488 mSDtfsCounter, 1311 mSDsluCounter, 2459 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2356.03ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1311 SdHoareTripleChecker+Valid, 4947 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.04ms SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2439.43ms IncrementalHoareTripleChecker+Time [2021-11-05 20:20:16,069 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1311 Valid, 4947 Invalid, 64 Unknown, 0 Unchecked, 6.04ms Time], IncrementalHoareTripleChecker [16 Valid, 47 Invalid, 1 Unknown, 0 Unchecked, 2439.43ms Time] [2021-11-05 20:20:16,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10352 states. [2021-11-05 20:20:16,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10352 to 10180. [2021-11-05 20:20:16,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10180 states, 10114 states have (on average 1.2961241842989915) internal successors, (13109), 10179 states have internal predecessors, (13109), 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) [2021-11-05 20:20:16,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10180 states to 10180 states and 13109 transitions. [2021-11-05 20:20:16,331 INFO L78 Accepts]: Start accepts. Automaton has 10180 states and 13109 transitions. Word has length 78 [2021-11-05 20:20:16,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:20:16,332 INFO L470 AbstractCegarLoop]: Abstraction has 10180 states and 13109 transitions. [2021-11-05 20:20:16,332 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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) [2021-11-05 20:20:16,332 INFO L276 IsEmpty]: Start isEmpty. Operand 10180 states and 13109 transitions. [2021-11-05 20:20:16,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-05 20:20:16,333 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:20:16,333 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] [2021-11-05 20:20:16,333 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-05 20:20:16,334 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 63 more)] === [2021-11-05 20:20:16,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:20:16,334 INFO L85 PathProgramCache]: Analyzing trace with hash -911664211, now seen corresponding path program 1 times [2021-11-05 20:20:16,334 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:20:16,334 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741808438] [2021-11-05 20:20:16,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:20:16,335 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:20:16,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:20:16,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 20:20:16,569 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:20:16,569 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741808438] [2021-11-05 20:20:16,569 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741808438] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:20:16,569 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:20:16,569 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:20:16,569 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404071909] [2021-11-05 20:20:16,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:20:16,570 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:20:16,570 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:20:16,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:20:16,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:20:16,570 INFO L87 Difference]: Start difference. First operand 10180 states and 13109 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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) [2021-11-05 20:20:18,659 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 [] [2021-11-05 20:20:19,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:20:19,125 INFO L93 Difference]: Finished difference Result 27410 states and 35347 transitions. [2021-11-05 20:20:19,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:20:19,125 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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 79 [2021-11-05 20:20:19,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:20:19,175 INFO L225 Difference]: With dead ends: 27410 [2021-11-05 20:20:19,176 INFO L226 Difference]: Without dead ends: 17386 [2021-11-05 20:20:19,192 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 20.47ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:20:19,194 INFO L933 BasicCegarLoop]: 2494 mSDtfsCounter, 2136 mSDsluCounter, 2471 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2273.02ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2136 SdHoareTripleChecker+Valid, 4965 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.75ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2361.19ms IncrementalHoareTripleChecker+Time [2021-11-05 20:20:19,194 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2136 Valid, 4965 Invalid, 39 Unknown, 0 Unchecked, 5.75ms Time], IncrementalHoareTripleChecker [7 Valid, 31 Invalid, 1 Unknown, 0 Unchecked, 2361.19ms Time] [2021-11-05 20:20:19,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17386 states. [2021-11-05 20:20:19,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17386 to 17174. [2021-11-05 20:20:19,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17174 states, 17108 states have (on average 1.297580079494973) internal successors, (22199), 17173 states have internal predecessors, (22199), 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) [2021-11-05 20:20:19,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17174 states to 17174 states and 22199 transitions. [2021-11-05 20:20:19,526 INFO L78 Accepts]: Start accepts. Automaton has 17174 states and 22199 transitions. Word has length 79 [2021-11-05 20:20:19,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:20:19,526 INFO L470 AbstractCegarLoop]: Abstraction has 17174 states and 22199 transitions. [2021-11-05 20:20:19,527 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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) [2021-11-05 20:20:19,527 INFO L276 IsEmpty]: Start isEmpty. Operand 17174 states and 22199 transitions. [2021-11-05 20:20:19,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-05 20:20:19,531 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:20:19,531 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] [2021-11-05 20:20:19,532 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-05 20:20:19,532 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr43ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 63 more)] === [2021-11-05 20:20:19,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:20:19,532 INFO L85 PathProgramCache]: Analyzing trace with hash 1230006174, now seen corresponding path program 1 times [2021-11-05 20:20:19,533 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:20:19,533 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435941928] [2021-11-05 20:20:19,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:20:19,533 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:20:19,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:20:19,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 20:20:19,761 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:20:19,761 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435941928] [2021-11-05 20:20:19,761 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435941928] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:20:19,761 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:20:19,761 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:20:19,761 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660421056] [2021-11-05 20:20:19,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:20:19,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:20:19,761 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:20:19,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:20:19,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:20:19,762 INFO L87 Difference]: Start difference. First operand 17174 states and 22199 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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) [2021-11-05 20:20:21,860 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 20:20:22,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:20:22,530 INFO L93 Difference]: Finished difference Result 47256 states and 61035 transitions. [2021-11-05 20:20:22,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:20:22,531 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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 80 [2021-11-05 20:20:22,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:20:22,599 INFO L225 Difference]: With dead ends: 47256 [2021-11-05 20:20:22,599 INFO L226 Difference]: Without dead ends: 30238 [2021-11-05 20:20:22,623 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 21.53ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:20:22,624 INFO L933 BasicCegarLoop]: 2671 mSDtfsCounter, 2102 mSDsluCounter, 2472 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2251.17ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2102 SdHoareTripleChecker+Valid, 5143 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.56ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2346.82ms IncrementalHoareTripleChecker+Time [2021-11-05 20:20:22,624 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2102 Valid, 5143 Invalid, 39 Unknown, 0 Unchecked, 5.56ms Time], IncrementalHoareTripleChecker [7 Valid, 31 Invalid, 1 Unknown, 0 Unchecked, 2346.82ms Time] [2021-11-05 20:20:22,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30238 states. [2021-11-05 20:20:23,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30238 to 30010. [2021-11-05 20:20:23,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30010 states, 29944 states have (on average 1.2937817258883249) internal successors, (38741), 30009 states have internal predecessors, (38741), 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) [2021-11-05 20:20:23,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30010 states to 30010 states and 38741 transitions. [2021-11-05 20:20:23,234 INFO L78 Accepts]: Start accepts. Automaton has 30010 states and 38741 transitions. Word has length 80 [2021-11-05 20:20:23,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:20:23,235 INFO L470 AbstractCegarLoop]: Abstraction has 30010 states and 38741 transitions. [2021-11-05 20:20:23,235 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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) [2021-11-05 20:20:23,235 INFO L276 IsEmpty]: Start isEmpty. Operand 30010 states and 38741 transitions. [2021-11-05 20:20:23,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-11-05 20:20:23,236 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:20:23,237 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 20:20:23,237 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-05 20:20:23,238 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 63 more)] === [2021-11-05 20:20:23,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:20:23,238 INFO L85 PathProgramCache]: Analyzing trace with hash 697993521, now seen corresponding path program 1 times [2021-11-05 20:20:23,238 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:20:23,238 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286541931] [2021-11-05 20:20:23,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:20:23,239 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:20:23,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:20:23,460 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 20:20:23,461 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:20:23,461 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286541931] [2021-11-05 20:20:23,461 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286541931] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:20:23,461 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:20:23,461 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:20:23,461 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959288862] [2021-11-05 20:20:23,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:20:23,461 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:20:23,461 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:20:23,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:20:23,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:20:23,462 INFO L87 Difference]: Start difference. First operand 30010 states and 38741 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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) [2021-11-05 20:20:25,556 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 [] [2021-11-05 20:20:26,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:20:26,539 INFO L93 Difference]: Finished difference Result 87746 states and 113409 transitions. [2021-11-05 20:20:26,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:20:26,540 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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 95 [2021-11-05 20:20:26,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:20:26,681 INFO L225 Difference]: With dead ends: 87746 [2021-11-05 20:20:26,681 INFO L226 Difference]: Without dead ends: 57892 [2021-11-05 20:20:26,731 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 20.31ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:20:26,732 INFO L933 BasicCegarLoop]: 3493 mSDtfsCounter, 2299 mSDsluCounter, 2444 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2215.40ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2299 SdHoareTripleChecker+Valid, 5937 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.33ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2359.00ms IncrementalHoareTripleChecker+Time [2021-11-05 20:20:26,732 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2299 Valid, 5937 Invalid, 31 Unknown, 0 Unchecked, 5.33ms Time], IncrementalHoareTripleChecker [8 Valid, 22 Invalid, 1 Unknown, 0 Unchecked, 2359.00ms Time] [2021-11-05 20:20:26,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57892 states. [2021-11-05 20:20:27,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57892 to 57628. [2021-11-05 20:20:27,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57628 states, 57562 states have (on average 1.294812549946145) internal successors, (74532), 57627 states have internal predecessors, (74532), 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) [2021-11-05 20:20:28,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57628 states to 57628 states and 74532 transitions. [2021-11-05 20:20:28,012 INFO L78 Accepts]: Start accepts. Automaton has 57628 states and 74532 transitions. Word has length 95 [2021-11-05 20:20:28,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:20:28,012 INFO L470 AbstractCegarLoop]: Abstraction has 57628 states and 74532 transitions. [2021-11-05 20:20:28,013 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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) [2021-11-05 20:20:28,013 INFO L276 IsEmpty]: Start isEmpty. Operand 57628 states and 74532 transitions. [2021-11-05 20:20:28,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-11-05 20:20:28,014 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:20:28,014 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 20:20:28,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-05 20:20:28,015 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 63 more)] === [2021-11-05 20:20:28,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:20:28,016 INFO L85 PathProgramCache]: Analyzing trace with hash -2002323868, now seen corresponding path program 1 times [2021-11-05 20:20:28,016 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:20:28,016 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442206902] [2021-11-05 20:20:28,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:20:28,016 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:20:28,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:20:28,239 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 20:20:28,239 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:20:28,239 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442206902] [2021-11-05 20:20:28,239 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442206902] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:20:28,239 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:20:28,239 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:20:28,239 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559608179] [2021-11-05 20:20:28,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:20:28,240 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:20:28,240 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:20:28,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:20:28,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:20:28,240 INFO L87 Difference]: Start difference. First operand 57628 states and 74532 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 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) [2021-11-05 20:20:30,484 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 [] [2021-11-05 20:20:32,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:20:32,025 INFO L93 Difference]: Finished difference Result 170194 states and 220529 transitions. [2021-11-05 20:20:32,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:20:32,027 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 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 107 [2021-11-05 20:20:32,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:20:32,268 INFO L225 Difference]: With dead ends: 170194 [2021-11-05 20:20:32,269 INFO L226 Difference]: Without dead ends: 112802 [2021-11-05 20:20:32,339 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 22.37ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:20:32,340 INFO L933 BasicCegarLoop]: 3673 mSDtfsCounter, 2192 mSDsluCounter, 2469 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2242.15ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2192 SdHoareTripleChecker+Valid, 6142 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.80ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2338.85ms IncrementalHoareTripleChecker+Time [2021-11-05 20:20:32,340 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2192 Valid, 6142 Invalid, 40 Unknown, 0 Unchecked, 5.80ms Time], IncrementalHoareTripleChecker [7 Valid, 32 Invalid, 1 Unknown, 0 Unchecked, 2338.85ms Time] [2021-11-05 20:20:32,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112802 states. [2021-11-05 20:20:34,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112802 to 112700. [2021-11-05 20:20:34,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112700 states, 112634 states have (on average 1.2941385372090133) internal successors, (145764), 112699 states have internal predecessors, (145764), 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) [2021-11-05 20:20:35,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112700 states to 112700 states and 145764 transitions. [2021-11-05 20:20:35,069 INFO L78 Accepts]: Start accepts. Automaton has 112700 states and 145764 transitions. Word has length 107 [2021-11-05 20:20:35,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:20:35,069 INFO L470 AbstractCegarLoop]: Abstraction has 112700 states and 145764 transitions. [2021-11-05 20:20:35,070 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 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) [2021-11-05 20:20:35,070 INFO L276 IsEmpty]: Start isEmpty. Operand 112700 states and 145764 transitions. [2021-11-05 20:20:35,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-11-05 20:20:35,071 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:20:35,071 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 20:20:35,071 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-05 20:20:35,072 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 63 more)] === [2021-11-05 20:20:35,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:20:35,072 INFO L85 PathProgramCache]: Analyzing trace with hash 1012779750, now seen corresponding path program 1 times [2021-11-05 20:20:35,072 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:20:35,072 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564312468] [2021-11-05 20:20:35,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:20:35,073 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:20:35,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:20:35,305 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 20:20:35,305 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:20:35,305 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564312468] [2021-11-05 20:20:35,305 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564312468] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:20:35,305 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:20:35,305 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 20:20:35,306 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413673933] [2021-11-05 20:20:35,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:20:35,306 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 20:20:35,306 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:20:35,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 20:20:35,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:20:35,306 INFO L87 Difference]: Start difference. First operand 112700 states and 145764 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 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) [2021-11-05 20:20:37,406 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 20:20:40,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:20:40,425 INFO L93 Difference]: Finished difference Result 280402 states and 363121 transitions. [2021-11-05 20:20:40,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 20:20:40,426 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 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 107 [2021-11-05 20:20:40,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:20:40,858 INFO L225 Difference]: With dead ends: 280402 [2021-11-05 20:20:40,859 INFO L226 Difference]: Without dead ends: 167938 [2021-11-05 20:20:40,983 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 20.85ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 20:20:40,984 INFO L933 BasicCegarLoop]: 4685 mSDtfsCounter, 2210 mSDsluCounter, 2452 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2269.34ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2210 SdHoareTripleChecker+Valid, 7137 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.50ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2344.16ms IncrementalHoareTripleChecker+Time [2021-11-05 20:20:40,984 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2210 Valid, 7137 Invalid, 42 Unknown, 0 Unchecked, 7.50ms Time], IncrementalHoareTripleChecker [8 Valid, 33 Invalid, 1 Unknown, 0 Unchecked, 2344.16ms Time] [2021-11-05 20:20:41,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167938 states. [2021-11-05 20:20:44,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167938 to 167269. [2021-11-05 20:20:44,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167269 states, 167203 states have (on average 1.294791361399018) internal successors, (216493), 167268 states have internal predecessors, (216493), 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) [2021-11-05 20:20:44,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167269 states to 167269 states and 216493 transitions. [2021-11-05 20:20:44,689 INFO L78 Accepts]: Start accepts. Automaton has 167269 states and 216493 transitions. Word has length 107 [2021-11-05 20:20:44,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:20:44,689 INFO L470 AbstractCegarLoop]: Abstraction has 167269 states and 216493 transitions. [2021-11-05 20:20:44,689 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 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) [2021-11-05 20:20:44,689 INFO L276 IsEmpty]: Start isEmpty. Operand 167269 states and 216493 transitions. [2021-11-05 20:20:44,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-05 20:20:44,690 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:20:44,691 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 20:20:44,691 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-05 20:20:44,691 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 63 more)] === [2021-11-05 20:20:44,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:20:44,691 INFO L85 PathProgramCache]: Analyzing trace with hash -649456874, now seen corresponding path program 1 times [2021-11-05 20:20:44,692 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:20:44,692 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959345378] [2021-11-05 20:20:44,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:20:44,692 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:20:45,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:20:45,409 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-05 20:20:45,409 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:20:45,409 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959345378] [2021-11-05 20:20:45,409 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959345378] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:20:45,409 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:20:45,409 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-05 20:20:45,409 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348497182] [2021-11-05 20:20:45,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:20:45,410 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 20:20:45,410 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:20:45,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 20:20:45,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 20:20:45,410 INFO L87 Difference]: Start difference. First operand 167269 states and 216493 transitions. Second operand has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 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) [2021-11-05 20:20:47,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:20:47,966 INFO L93 Difference]: Finished difference Result 167269 states and 216493 transitions. [2021-11-05 20:20:47,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 20:20:47,967 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 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 110 [2021-11-05 20:20:47,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:20:48,316 INFO L225 Difference]: With dead ends: 167269 [2021-11-05 20:20:48,316 INFO L226 Difference]: Without dead ends: 167263 [2021-11-05 20:20:48,367 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 92.40ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 20:20:48,368 INFO L933 BasicCegarLoop]: 2484 mSDtfsCounter, 1575 mSDsluCounter, 3261 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 379.71ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1575 SdHoareTripleChecker+Valid, 5745 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.04ms SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 418.38ms IncrementalHoareTripleChecker+Time [2021-11-05 20:20:48,368 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1575 Valid, 5745 Invalid, 71 Unknown, 0 Unchecked, 12.04ms Time], IncrementalHoareTripleChecker [20 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 418.38ms Time] [2021-11-05 20:20:48,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167263 states. [2021-11-05 20:20:51,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167263 to 167263. [2021-11-05 20:20:51,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167263 states, 167200 states have (on average 1.2947787081339712) internal successors, (216487), 167262 states have internal predecessors, (216487), 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) [2021-11-05 20:20:52,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167263 states to 167263 states and 216487 transitions. [2021-11-05 20:20:52,153 INFO L78 Accepts]: Start accepts. Automaton has 167263 states and 216487 transitions. Word has length 110 [2021-11-05 20:20:52,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 20:20:52,153 INFO L470 AbstractCegarLoop]: Abstraction has 167263 states and 216487 transitions. [2021-11-05 20:20:52,154 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 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) [2021-11-05 20:20:52,154 INFO L276 IsEmpty]: Start isEmpty. Operand 167263 states and 216487 transitions. [2021-11-05 20:20:52,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-05 20:20:52,155 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 20:20:52,155 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 20:20:52,156 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-05 20:20:52,156 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 63 more)] === [2021-11-05 20:20:52,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 20:20:52,156 INFO L85 PathProgramCache]: Analyzing trace with hash -1357645287, now seen corresponding path program 1 times [2021-11-05 20:20:52,156 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 20:20:52,157 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526798567] [2021-11-05 20:20:52,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 20:20:52,157 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 20:20:52,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 20:20:52,588 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-05 20:20:52,589 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 20:20:52,589 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526798567] [2021-11-05 20:20:52,589 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526798567] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 20:20:52,589 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 20:20:52,589 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-05 20:20:52,589 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205602852] [2021-11-05 20:20:52,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 20:20:52,589 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 20:20:52,589 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 20:20:52,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 20:20:52,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 20:20:52,590 INFO L87 Difference]: Start difference. First operand 167263 states and 216487 transitions. Second operand has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 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) [2021-11-05 20:20:55,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 20:20:55,512 INFO L93 Difference]: Finished difference Result 167263 states and 216487 transitions. [2021-11-05 20:20:55,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 20:20:55,513 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 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 112 [2021-11-05 20:20:55,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 20:20:55,876 INFO L225 Difference]: With dead ends: 167263 [2021-11-05 20:20:55,876 INFO L226 Difference]: Without dead ends: 167257 [2021-11-05 20:20:55,936 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 94.53ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 20:20:55,942 INFO L933 BasicCegarLoop]: 2483 mSDtfsCounter, 2391 mSDsluCounter, 2453 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 251.63ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2391 SdHoareTripleChecker+Valid, 4936 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.13ms SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 276.06ms IncrementalHoareTripleChecker+Time [2021-11-05 20:20:55,942 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2391 Valid, 4936 Invalid, 44 Unknown, 0 Unchecked, 8.13ms Time], IncrementalHoareTripleChecker [17 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 276.06ms Time] [2021-11-05 20:20:56,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167257 states.