./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--icplus--ipg.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e9ae250-a8a3-4c99-a74e-c944dfae9c6c/bin/uautomizer-tBqnrhUYjU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e9ae250-a8a3-4c99-a74e-c944dfae9c6c/bin/uautomizer-tBqnrhUYjU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e9ae250-a8a3-4c99-a74e-c944dfae9c6c/bin/uautomizer-tBqnrhUYjU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e9ae250-a8a3-4c99-a74e-c944dfae9c6c/bin/uautomizer-tBqnrhUYjU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--icplus--ipg.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e9ae250-a8a3-4c99-a74e-c944dfae9c6c/bin/uautomizer-tBqnrhUYjU/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e9ae250-a8a3-4c99-a74e-c944dfae9c6c/bin/uautomizer-tBqnrhUYjU --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 796dd9af134a9ffa7d65525922d125c3e75a459db15e4643a4f13ca47d95e4ce --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-02 22:56:56,646 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-02 22:56:56,649 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-02 22:56:56,709 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-02 22:56:56,710 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-02 22:56:56,713 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-02 22:56:56,715 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-02 22:56:56,718 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-02 22:56:56,720 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-02 22:56:56,722 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-02 22:56:56,723 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-02 22:56:56,725 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-02 22:56:56,726 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-02 22:56:56,728 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-02 22:56:56,730 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-02 22:56:56,732 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-02 22:56:56,738 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-02 22:56:56,740 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-02 22:56:56,749 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-02 22:56:56,753 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-02 22:56:56,755 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-02 22:56:56,760 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-02 22:56:56,763 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-02 22:56:56,769 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-02 22:56:56,774 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-02 22:56:56,778 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-02 22:56:56,779 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-02 22:56:56,780 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-02 22:56:56,782 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-02 22:56:56,783 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-02 22:56:56,784 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-02 22:56:56,785 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-02 22:56:56,786 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-02 22:56:56,788 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-02 22:56:56,789 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-02 22:56:56,790 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-02 22:56:56,791 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-02 22:56:56,791 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-02 22:56:56,791 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-02 22:56:56,792 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-02 22:56:56,793 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-02 22:56:56,794 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e9ae250-a8a3-4c99-a74e-c944dfae9c6c/bin/uautomizer-tBqnrhUYjU/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-02 22:56:56,827 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-02 22:56:56,827 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-02 22:56:56,827 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-02 22:56:56,828 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-02 22:56:56,829 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-02 22:56:56,829 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-02 22:56:56,829 INFO L138 SettingsManager]: * Use SBE=true [2021-11-02 22:56:56,830 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-02 22:56:56,830 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-02 22:56:56,830 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-02 22:56:56,831 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-02 22:56:56,831 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-02 22:56:56,831 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-02 22:56:56,831 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-02 22:56:56,831 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-02 22:56:56,832 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-02 22:56:56,832 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-02 22:56:56,832 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-02 22:56:56,832 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-02 22:56:56,833 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 22:56:56,833 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-02 22:56:56,833 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-02 22:56:56,833 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-02 22:56:56,834 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-02 22:56:56,834 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-02 22:56:56,834 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-02 22:56:56,834 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-02 22:56:56,835 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-02 22:56:56,835 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-02 22:56:56,835 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e9ae250-a8a3-4c99-a74e-c944dfae9c6c/bin/uautomizer-tBqnrhUYjU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e9ae250-a8a3-4c99-a74e-c944dfae9c6c/bin/uautomizer-tBqnrhUYjU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 796dd9af134a9ffa7d65525922d125c3e75a459db15e4643a4f13ca47d95e4ce [2021-11-02 22:56:57,144 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-02 22:56:57,176 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-02 22:56:57,181 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-02 22:56:57,183 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-02 22:56:57,185 INFO L275 PluginConnector]: CDTParser initialized [2021-11-02 22:56:57,187 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e9ae250-a8a3-4c99-a74e-c944dfae9c6c/bin/uautomizer-tBqnrhUYjU/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--icplus--ipg.ko-entry_point.cil.out.i [2021-11-02 22:56:57,302 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e9ae250-a8a3-4c99-a74e-c944dfae9c6c/bin/uautomizer-tBqnrhUYjU/data/09ab67950/df7486638bb4494094e1d72006ebe11f/FLAG6851290b1 [2021-11-02 22:56:58,457 INFO L306 CDTParser]: Found 1 translation units. [2021-11-02 22:56:58,458 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e9ae250-a8a3-4c99-a74e-c944dfae9c6c/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--icplus--ipg.ko-entry_point.cil.out.i [2021-11-02 22:56:58,509 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e9ae250-a8a3-4c99-a74e-c944dfae9c6c/bin/uautomizer-tBqnrhUYjU/data/09ab67950/df7486638bb4494094e1d72006ebe11f/FLAG6851290b1 [2021-11-02 22:56:58,828 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e9ae250-a8a3-4c99-a74e-c944dfae9c6c/bin/uautomizer-tBqnrhUYjU/data/09ab67950/df7486638bb4494094e1d72006ebe11f [2021-11-02 22:56:58,830 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-02 22:56:58,832 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-02 22:56:58,833 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-02 22:56:58,834 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-02 22:56:58,848 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-02 22:56:58,849 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:56:58" (1/1) ... [2021-11-02 22:56:58,851 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f1a3649 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:56:58, skipping insertion in model container [2021-11-02 22:56:58,851 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:56:58" (1/1) ... [2021-11-02 22:56:58,859 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-02 22:56:59,039 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-02 22:57:01,631 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e9ae250-a8a3-4c99-a74e-c944dfae9c6c/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--icplus--ipg.ko-entry_point.cil.out.i[263179,263192] [2021-11-02 22:57:01,723 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 22:57:01,780 INFO L203 MainTranslator]: Completed pre-run [2021-11-02 22:57:02,213 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e9ae250-a8a3-4c99-a74e-c944dfae9c6c/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--icplus--ipg.ko-entry_point.cil.out.i[263179,263192] [2021-11-02 22:57:02,224 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 22:57:02,389 INFO L208 MainTranslator]: Completed translation [2021-11-02 22:57:02,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:57:02 WrapperNode [2021-11-02 22:57:02,390 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-02 22:57:02,391 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-02 22:57:02,392 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-02 22:57:02,392 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-02 22:57:02,400 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:57:02" (1/1) ... [2021-11-02 22:57:02,519 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:57:02" (1/1) ... [2021-11-02 22:57:03,717 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-02 22:57:03,718 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-02 22:57:03,718 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-02 22:57:03,718 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-02 22:57:03,738 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:57:02" (1/1) ... [2021-11-02 22:57:03,738 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:57:02" (1/1) ... [2021-11-02 22:57:04,146 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:57:02" (1/1) ... [2021-11-02 22:57:04,146 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:57:02" (1/1) ... [2021-11-02 22:57:04,766 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:57:02" (1/1) ... [2021-11-02 22:57:04,933 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:57:02" (1/1) ... [2021-11-02 22:57:05,009 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:57:02" (1/1) ... [2021-11-02 22:57:05,347 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-02 22:57:05,356 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-02 22:57:05,357 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-02 22:57:05,357 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-02 22:57:05,358 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:57:02" (1/1) ... [2021-11-02 22:57:05,368 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 22:57:05,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e9ae250-a8a3-4c99-a74e-c944dfae9c6c/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:57:05,401 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e9ae250-a8a3-4c99-a74e-c944dfae9c6c/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-02 22:57:05,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e9ae250-a8a3-4c99-a74e-c944dfae9c6c/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-02 22:57:05,462 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-02 22:57:05,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-02 22:57:05,463 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-02 22:57:05,464 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-02 22:57:05,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-02 22:57:05,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-02 22:57:05,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-02 22:57:05,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-02 22:57:05,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-02 22:57:05,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-02 22:57:05,466 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-02 22:57:05,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-02 22:57:05,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-02 22:57:05,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-02 22:57:05,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-02 22:57:28,029 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-02 22:57:28,030 INFO L299 CfgBuilder]: Removed 6500 assume(true) statements. [2021-11-02 22:57:28,038 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:57:28 BoogieIcfgContainer [2021-11-02 22:57:28,038 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-02 22:57:28,041 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-02 22:57:28,041 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-02 22:57:28,045 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-02 22:57:28,046 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 10:56:58" (1/3) ... [2021-11-02 22:57:28,047 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7464f398 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 10:57:28, skipping insertion in model container [2021-11-02 22:57:28,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:57:02" (2/3) ... [2021-11-02 22:57:28,047 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7464f398 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 10:57:28, skipping insertion in model container [2021-11-02 22:57:28,048 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:57:28" (3/3) ... [2021-11-02 22:57:28,050 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--icplus--ipg.ko-entry_point.cil.out.i [2021-11-02 22:57:28,056 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-02 22:57:28,057 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 23 error locations. [2021-11-02 22:57:28,153 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-02 22:57:28,161 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-02 22:57:28,162 INFO L340 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2021-11-02 22:57:28,283 INFO L276 IsEmpty]: Start isEmpty. Operand has 5295 states, 5271 states have (on average 1.3200531208499335) internal successors, (6958), 5294 states have internal predecessors, (6958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:57:28,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-02 22:57:28,304 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:57:28,305 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:57:28,306 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-11-02 22:57:28,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:57:28,313 INFO L85 PathProgramCache]: Analyzing trace with hash -1578018257, now seen corresponding path program 1 times [2021-11-02 22:57:28,325 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:57:28,325 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074083469] [2021-11-02 22:57:28,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:57:28,327 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:57:28,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:57:29,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:57:29,011 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:57:29,012 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074083469] [2021-11-02 22:57:29,013 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074083469] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:57:29,014 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:57:29,014 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-02 22:57:29,017 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834635794] [2021-11-02 22:57:29,026 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-02 22:57:29,027 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:57:29,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-02 22:57:29,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-02 22:57:29,059 INFO L87 Difference]: Start difference. First operand has 5295 states, 5271 states have (on average 1.3200531208499335) internal successors, (6958), 5294 states have internal predecessors, (6958), 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 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:57:29,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:57:29,404 INFO L93 Difference]: Finished difference Result 10496 states and 13791 transitions. [2021-11-02 22:57:29,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-02 22:57:29,406 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 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 43 [2021-11-02 22:57:29,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:57:29,468 INFO L225 Difference]: With dead ends: 10496 [2021-11-02 22:57:29,469 INFO L226 Difference]: Without dead ends: 5101 [2021-11-02 22:57:29,491 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-02 22:57:29,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5101 states. [2021-11-02 22:57:29,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5101 to 5101. [2021-11-02 22:57:29,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5101 states, 5078 states have (on average 1.288499409216227) internal successors, (6543), 5100 states have internal predecessors, (6543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:57:29,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5101 states to 5101 states and 6543 transitions. [2021-11-02 22:57:29,825 INFO L78 Accepts]: Start accepts. Automaton has 5101 states and 6543 transitions. Word has length 43 [2021-11-02 22:57:29,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:57:29,826 INFO L470 AbstractCegarLoop]: Abstraction has 5101 states and 6543 transitions. [2021-11-02 22:57:29,827 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:57:29,827 INFO L276 IsEmpty]: Start isEmpty. Operand 5101 states and 6543 transitions. [2021-11-02 22:57:29,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-02 22:57:29,833 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:57:29,833 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:57:29,834 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-02 22:57:29,834 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-11-02 22:57:29,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:57:29,836 INFO L85 PathProgramCache]: Analyzing trace with hash 716061479, now seen corresponding path program 1 times [2021-11-02 22:57:29,836 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:57:29,836 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874546150] [2021-11-02 22:57:29,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:57:29,837 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:57:29,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:57:30,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:57:30,162 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:57:30,162 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874546150] [2021-11-02 22:57:30,163 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874546150] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:57:30,163 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:57:30,163 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 22:57:30,164 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7433260] [2021-11-02 22:57:30,166 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 22:57:30,167 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:57:30,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 22:57:30,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:57:30,171 INFO L87 Difference]: Start difference. First operand 5101 states and 6543 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:57:30,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:57:30,487 INFO L93 Difference]: Finished difference Result 10184 states and 13069 transitions. [2021-11-02 22:57:30,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 22:57:30,489 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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 43 [2021-11-02 22:57:30,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:57:30,527 INFO L225 Difference]: With dead ends: 10184 [2021-11-02 22:57:30,527 INFO L226 Difference]: Without dead ends: 5103 [2021-11-02 22:57:30,542 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:57:30,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5103 states. [2021-11-02 22:57:30,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5103 to 5103. [2021-11-02 22:57:30,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5103 states, 5080 states have (on average 1.2883858267716535) internal successors, (6545), 5102 states have internal predecessors, (6545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:57:30,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5103 states to 5103 states and 6545 transitions. [2021-11-02 22:57:30,898 INFO L78 Accepts]: Start accepts. Automaton has 5103 states and 6545 transitions. Word has length 43 [2021-11-02 22:57:30,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:57:30,899 INFO L470 AbstractCegarLoop]: Abstraction has 5103 states and 6545 transitions. [2021-11-02 22:57:30,901 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:57:30,901 INFO L276 IsEmpty]: Start isEmpty. Operand 5103 states and 6545 transitions. [2021-11-02 22:57:30,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-02 22:57:30,906 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:57:30,906 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:57:30,907 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-02 22:57:30,907 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-11-02 22:57:30,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:57:30,910 INFO L85 PathProgramCache]: Analyzing trace with hash -1841164763, now seen corresponding path program 1 times [2021-11-02 22:57:30,914 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:57:30,914 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406996960] [2021-11-02 22:57:30,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:57:30,915 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:57:31,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:57:31,266 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-02 22:57:31,266 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:57:31,266 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406996960] [2021-11-02 22:57:31,267 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406996960] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:57:31,267 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:57:31,267 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 22:57:31,267 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454964251] [2021-11-02 22:57:31,268 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-02 22:57:31,268 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:57:31,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-02 22:57:31,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-02 22:57:31,269 INFO L87 Difference]: Start difference. First operand 5103 states and 6545 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:57:32,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:57:32,199 INFO L93 Difference]: Finished difference Result 19417 states and 24757 transitions. [2021-11-02 22:57:32,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-02 22:57:32,200 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 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 45 [2021-11-02 22:57:32,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:57:32,303 INFO L225 Difference]: With dead ends: 19417 [2021-11-02 22:57:32,303 INFO L226 Difference]: Without dead ends: 14342 [2021-11-02 22:57:32,319 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-02 22:57:32,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14342 states. [2021-11-02 22:57:32,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14342 to 7496. [2021-11-02 22:57:32,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7496 states, 7473 states have (on average 1.2775324501538874) internal successors, (9547), 7495 states have internal predecessors, (9547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:57:32,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7496 states to 7496 states and 9547 transitions. [2021-11-02 22:57:32,916 INFO L78 Accepts]: Start accepts. Automaton has 7496 states and 9547 transitions. Word has length 45 [2021-11-02 22:57:32,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:57:32,916 INFO L470 AbstractCegarLoop]: Abstraction has 7496 states and 9547 transitions. [2021-11-02 22:57:32,917 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:57:32,918 INFO L276 IsEmpty]: Start isEmpty. Operand 7496 states and 9547 transitions. [2021-11-02 22:57:32,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-02 22:57:32,921 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:57:32,922 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:57:32,922 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-02 22:57:32,922 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-11-02 22:57:32,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:57:32,924 INFO L85 PathProgramCache]: Analyzing trace with hash 2061877249, now seen corresponding path program 1 times [2021-11-02 22:57:32,924 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:57:32,924 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438991150] [2021-11-02 22:57:32,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:57:32,924 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:57:33,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:57:33,222 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-02 22:57:33,222 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:57:33,223 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438991150] [2021-11-02 22:57:33,223 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438991150] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:57:33,223 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:57:33,223 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 22:57:33,224 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669824575] [2021-11-02 22:57:33,224 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-02 22:57:33,224 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:57:33,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-02 22:57:33,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-02 22:57:33,226 INFO L87 Difference]: Start difference. First operand 7496 states and 9547 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:57:34,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:57:34,402 INFO L93 Difference]: Finished difference Result 31386 states and 39777 transitions. [2021-11-02 22:57:34,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-02 22:57:34,402 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 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 46 [2021-11-02 22:57:34,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:57:34,512 INFO L225 Difference]: With dead ends: 31386 [2021-11-02 22:57:34,512 INFO L226 Difference]: Without dead ends: 23918 [2021-11-02 22:57:34,533 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-02 22:57:34,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23918 states. [2021-11-02 22:57:35,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23918 to 14258. [2021-11-02 22:57:35,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14258 states, 14235 states have (on average 1.2750965929048121) internal successors, (18151), 14257 states have internal predecessors, (18151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:57:35,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14258 states to 14258 states and 18151 transitions. [2021-11-02 22:57:35,484 INFO L78 Accepts]: Start accepts. Automaton has 14258 states and 18151 transitions. Word has length 46 [2021-11-02 22:57:35,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:57:35,486 INFO L470 AbstractCegarLoop]: Abstraction has 14258 states and 18151 transitions. [2021-11-02 22:57:35,486 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:57:35,487 INFO L276 IsEmpty]: Start isEmpty. Operand 14258 states and 18151 transitions. [2021-11-02 22:57:35,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-02 22:57:35,489 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:57:35,490 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:57:35,490 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-02 22:57:35,490 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-11-02 22:57:35,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:57:35,492 INFO L85 PathProgramCache]: Analyzing trace with hash -1497869768, now seen corresponding path program 1 times [2021-11-02 22:57:35,492 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:57:35,492 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840824406] [2021-11-02 22:57:35,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:57:35,493 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:57:35,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:57:35,755 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-02 22:57:35,755 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:57:35,755 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840824406] [2021-11-02 22:57:35,756 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840824406] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:57:35,756 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:57:35,756 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 22:57:35,757 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835842022] [2021-11-02 22:57:35,757 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-02 22:57:35,758 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:57:35,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-02 22:57:35,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-02 22:57:35,759 INFO L87 Difference]: Start difference. First operand 14258 states and 18151 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:57:37,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:57:37,972 INFO L93 Difference]: Finished difference Result 60608 states and 76753 transitions. [2021-11-02 22:57:37,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-02 22:57:37,973 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 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 47 [2021-11-02 22:57:37,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:57:38,131 INFO L225 Difference]: With dead ends: 60608 [2021-11-02 22:57:38,131 INFO L226 Difference]: Without dead ends: 46378 [2021-11-02 22:57:38,183 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-02 22:57:38,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46378 states. [2021-11-02 22:57:39,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46378 to 27131. [2021-11-02 22:57:39,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27131 states, 27108 states have (on average 1.2723181348679358) internal successors, (34490), 27130 states have internal predecessors, (34490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:57:39,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27131 states to 27131 states and 34490 transitions. [2021-11-02 22:57:39,974 INFO L78 Accepts]: Start accepts. Automaton has 27131 states and 34490 transitions. Word has length 47 [2021-11-02 22:57:39,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:57:39,975 INFO L470 AbstractCegarLoop]: Abstraction has 27131 states and 34490 transitions. [2021-11-02 22:57:39,975 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:57:39,975 INFO L276 IsEmpty]: Start isEmpty. Operand 27131 states and 34490 transitions. [2021-11-02 22:57:39,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-02 22:57:39,980 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:57:39,980 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:57:39,981 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-02 22:57:39,981 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-11-02 22:57:39,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:57:39,982 INFO L85 PathProgramCache]: Analyzing trace with hash -180875404, now seen corresponding path program 1 times [2021-11-02 22:57:39,983 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:57:39,983 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234927075] [2021-11-02 22:57:39,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:57:39,984 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:57:40,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:57:40,219 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-02 22:57:40,219 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:57:40,220 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234927075] [2021-11-02 22:57:40,220 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234927075] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:57:40,220 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:57:40,221 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 22:57:40,221 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585485675] [2021-11-02 22:57:40,222 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-02 22:57:40,222 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:57:40,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-02 22:57:40,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-02 22:57:40,223 INFO L87 Difference]: Start difference. First operand 27131 states and 34490 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:57:43,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:57:43,486 INFO L93 Difference]: Finished difference Result 117095 states and 148070 transitions. [2021-11-02 22:57:43,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-02 22:57:43,486 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 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 48 [2021-11-02 22:57:43,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:57:43,783 INFO L225 Difference]: With dead ends: 117095 [2021-11-02 22:57:43,784 INFO L226 Difference]: Without dead ends: 89992 [2021-11-02 22:57:43,883 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-02 22:57:44,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89992 states. [2021-11-02 22:57:47,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89992 to 51572. [2021-11-02 22:57:47,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51572 states, 51549 states have (on average 1.26916138043415) internal successors, (65424), 51571 states have internal predecessors, (65424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:57:47,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51572 states to 51572 states and 65424 transitions. [2021-11-02 22:57:47,282 INFO L78 Accepts]: Start accepts. Automaton has 51572 states and 65424 transitions. Word has length 48 [2021-11-02 22:57:47,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:57:47,282 INFO L470 AbstractCegarLoop]: Abstraction has 51572 states and 65424 transitions. [2021-11-02 22:57:47,283 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:57:47,283 INFO L276 IsEmpty]: Start isEmpty. Operand 51572 states and 65424 transitions. [2021-11-02 22:57:47,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-02 22:57:47,287 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:57:47,288 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-02 22:57:47,288 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-02 22:57:47,288 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-11-02 22:57:47,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:57:47,289 INFO L85 PathProgramCache]: Analyzing trace with hash -1749491284, now seen corresponding path program 1 times [2021-11-02 22:57:47,290 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:57:47,290 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796994829] [2021-11-02 22:57:47,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:57:47,291 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:57:47,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:57:47,554 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-02 22:57:47,554 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:57:47,555 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796994829] [2021-11-02 22:57:47,555 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796994829] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:57:47,555 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:57:47,556 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-02 22:57:47,556 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227834233] [2021-11-02 22:57:47,557 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-02 22:57:47,557 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:57:47,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-02 22:57:47,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-02 22:57:47,558 INFO L87 Difference]: Start difference. First operand 51572 states and 65424 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:57:52,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:57:52,327 INFO L93 Difference]: Finished difference Result 168640 states and 213390 transitions. [2021-11-02 22:57:52,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-02 22:57:52,328 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 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 53 [2021-11-02 22:57:52,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:57:52,632 INFO L225 Difference]: With dead ends: 168640 [2021-11-02 22:57:52,632 INFO L226 Difference]: Without dead ends: 117096 [2021-11-02 22:57:52,730 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-02 22:57:52,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117096 states. [2021-11-02 22:57:55,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117096 to 51612. [2021-11-02 22:57:55,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51612 states, 51589 states have (on average 1.268952683711644) internal successors, (65464), 51611 states have internal predecessors, (65464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:57:55,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51612 states to 51612 states and 65464 transitions. [2021-11-02 22:57:55,850 INFO L78 Accepts]: Start accepts. Automaton has 51612 states and 65464 transitions. Word has length 53 [2021-11-02 22:57:55,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:57:55,851 INFO L470 AbstractCegarLoop]: Abstraction has 51612 states and 65464 transitions. [2021-11-02 22:57:55,851 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:57:55,851 INFO L276 IsEmpty]: Start isEmpty. Operand 51612 states and 65464 transitions. [2021-11-02 22:57:55,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-02 22:57:55,854 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:57:55,854 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:57:55,854 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-02 22:57:55,855 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-11-02 22:57:55,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:57:55,856 INFO L85 PathProgramCache]: Analyzing trace with hash -1134431159, now seen corresponding path program 1 times [2021-11-02 22:57:55,856 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:57:55,856 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424311100] [2021-11-02 22:57:55,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:57:55,857 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:57:56,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:57:56,393 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-02 22:57:56,394 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:57:56,394 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424311100] [2021-11-02 22:57:56,394 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424311100] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:57:56,395 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:57:56,395 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-02 22:57:56,395 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939198743] [2021-11-02 22:57:56,396 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 22:57:56,396 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:57:56,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 22:57:56,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:57:56,397 INFO L87 Difference]: Start difference. First operand 51612 states and 65464 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 2 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:57:58,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:57:58,484 INFO L93 Difference]: Finished difference Result 51612 states and 65464 transitions. [2021-11-02 22:57:58,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 22:57:58,485 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 2 states have internal predecessors, (56), 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 56 [2021-11-02 22:57:58,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:57:58,609 INFO L225 Difference]: With dead ends: 51612 [2021-11-02 22:57:58,610 INFO L226 Difference]: Without dead ends: 51590 [2021-11-02 22:57:58,626 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:57:58,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51590 states. [2021-11-02 22:58:00,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51590 to 51590. [2021-11-02 22:58:00,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51590 states, 51578 states have (on average 1.2664508123618596) internal successors, (65321), 51589 states have internal predecessors, (65321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:58:01,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51590 states to 51590 states and 65321 transitions. [2021-11-02 22:58:01,405 INFO L78 Accepts]: Start accepts. Automaton has 51590 states and 65321 transitions. Word has length 56 [2021-11-02 22:58:01,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:58:01,411 INFO L470 AbstractCegarLoop]: Abstraction has 51590 states and 65321 transitions. [2021-11-02 22:58:01,411 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 2 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:58:01,412 INFO L276 IsEmpty]: Start isEmpty. Operand 51590 states and 65321 transitions. [2021-11-02 22:58:01,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-02 22:58:01,420 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:58:01,420 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-02 22:58:01,420 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-02 22:58:01,421 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 20 more)] === [2021-11-02 22:58:01,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:58:01,422 INFO L85 PathProgramCache]: Analyzing trace with hash 850821695, now seen corresponding path program 1 times [2021-11-02 22:58:01,422 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:58:01,422 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494168548] [2021-11-02 22:58:01,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:58:01,423 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:58:01,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:58:01,612 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-02 22:58:01,612 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:58:01,612 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494168548] [2021-11-02 22:58:01,612 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494168548] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:58:01,613 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:58:01,613 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 22:58:01,613 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045119312] [2021-11-02 22:58:01,615 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 22:58:01,615 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:58:01,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 22:58:01,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:58:01,616 INFO L87 Difference]: Start difference. First operand 51590 states and 65321 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:58:05,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:58:05,485 INFO L93 Difference]: Finished difference Result 132224 states and 167448 transitions. [2021-11-02 22:58:05,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 22:58:05,488 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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 82 [2021-11-02 22:58:05,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:58:05,639 INFO L225 Difference]: With dead ends: 132224 [2021-11-02 22:58:05,639 INFO L226 Difference]: Without dead ends: 80662 [2021-11-02 22:58:05,709 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:58:05,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80662 states.