./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-fealnx.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7df5df8d-6489-4a0b-bf4b-52dd4bd6e53f/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7df5df8d-6489-4a0b-bf4b-52dd4bd6e53f/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7df5df8d-6489-4a0b-bf4b-52dd4bd6e53f/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7df5df8d-6489-4a0b-bf4b-52dd4bd6e53f/bin/uautomizer-YU5uOKAj3y/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-fealnx.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7df5df8d-6489-4a0b-bf4b-52dd4bd6e53f/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7df5df8d-6489-4a0b-bf4b-52dd4bd6e53f/bin/uautomizer-YU5uOKAj3y --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 a3968cfb5889c9f3d7db25b50a6978e9654cfd81b83e3cceec28f5c030877771 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 18:21:23,936 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 18:21:23,939 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 18:21:23,997 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 18:21:23,998 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 18:21:24,004 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 18:21:24,006 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 18:21:24,008 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 18:21:24,011 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 18:21:24,012 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 18:21:24,014 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 18:21:24,015 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 18:21:24,016 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 18:21:24,017 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 18:21:24,019 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 18:21:24,021 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 18:21:24,022 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 18:21:24,023 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 18:21:24,026 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 18:21:24,029 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 18:21:24,031 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 18:21:24,033 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 18:21:24,034 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 18:21:24,035 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 18:21:24,040 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 18:21:24,040 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 18:21:24,041 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 18:21:24,042 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 18:21:24,043 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 18:21:24,044 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 18:21:24,045 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 18:21:24,046 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 18:21:24,047 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 18:21:24,048 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 18:21:24,049 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 18:21:24,050 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 18:21:24,051 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 18:21:24,052 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 18:21:24,052 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 18:21:24,053 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 18:21:24,054 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 18:21:24,055 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7df5df8d-6489-4a0b-bf4b-52dd4bd6e53f/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-13 18:21:24,081 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 18:21:24,082 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 18:21:24,082 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 18:21:24,083 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 18:21:24,083 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 18:21:24,084 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 18:21:24,084 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 18:21:24,085 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 18:21:24,085 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 18:21:24,085 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 18:21:24,086 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 18:21:24,086 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 18:21:24,086 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 18:21:24,086 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 18:21:24,087 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 18:21:24,087 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 18:21:24,087 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 18:21:24,087 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 18:21:24,088 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 18:21:24,088 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 18:21:24,088 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 18:21:24,088 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:21:24,089 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 18:21:24,089 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 18:21:24,089 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 18:21:24,089 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-13 18:21:24,090 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 18:21:24,090 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-13 18:21:24,090 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-13 18:21:24,091 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 18:21:24,091 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 18:21:24,092 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_7df5df8d-6489-4a0b-bf4b-52dd4bd6e53f/bin/uautomizer-YU5uOKAj3y/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7df5df8d-6489-4a0b-bf4b-52dd4bd6e53f/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a3968cfb5889c9f3d7db25b50a6978e9654cfd81b83e3cceec28f5c030877771 [2021-11-13 18:21:24,353 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 18:21:24,381 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 18:21:24,385 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 18:21:24,387 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 18:21:24,388 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 18:21:24,389 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7df5df8d-6489-4a0b-bf4b-52dd4bd6e53f/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-fealnx.cil.i [2021-11-13 18:21:24,479 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7df5df8d-6489-4a0b-bf4b-52dd4bd6e53f/bin/uautomizer-YU5uOKAj3y/data/30a5687cd/6b2cc8ae699c4d96bcb2465016efbbe8/FLAGb1506684c [2021-11-13 18:21:25,584 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 18:21:25,586 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7df5df8d-6489-4a0b-bf4b-52dd4bd6e53f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-fealnx.cil.i [2021-11-13 18:21:25,661 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7df5df8d-6489-4a0b-bf4b-52dd4bd6e53f/bin/uautomizer-YU5uOKAj3y/data/30a5687cd/6b2cc8ae699c4d96bcb2465016efbbe8/FLAGb1506684c [2021-11-13 18:21:25,887 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7df5df8d-6489-4a0b-bf4b-52dd4bd6e53f/bin/uautomizer-YU5uOKAj3y/data/30a5687cd/6b2cc8ae699c4d96bcb2465016efbbe8 [2021-11-13 18:21:25,890 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 18:21:25,891 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 18:21:25,894 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 18:21:25,894 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 18:21:25,898 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 18:21:25,900 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:21:25" (1/1) ... [2021-11-13 18:21:25,901 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bf3043b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:21:25, skipping insertion in model container [2021-11-13 18:21:25,902 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:21:25" (1/1) ... [2021-11-13 18:21:25,909 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 18:21:26,164 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 18:21:29,203 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_7df5df8d-6489-4a0b-bf4b-52dd4bd6e53f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-fealnx.cil.i[320486,320499] [2021-11-13 18:21:29,208 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_7df5df8d-6489-4a0b-bf4b-52dd4bd6e53f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-fealnx.cil.i[320631,320644] [2021-11-13 18:21:29,249 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:21:29,310 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 18:21:29,757 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_7df5df8d-6489-4a0b-bf4b-52dd4bd6e53f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-fealnx.cil.i[320486,320499] [2021-11-13 18:21:29,758 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_7df5df8d-6489-4a0b-bf4b-52dd4bd6e53f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-fealnx.cil.i[320631,320644] [2021-11-13 18:21:29,764 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:21:30,013 INFO L208 MainTranslator]: Completed translation [2021-11-13 18:21:30,013 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:21:30 WrapperNode [2021-11-13 18:21:30,015 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 18:21:30,016 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 18:21:30,016 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 18:21:30,016 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 18:21:30,024 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:21:30" (1/1) ... [2021-11-13 18:21:30,160 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:21:30" (1/1) ... [2021-11-13 18:21:30,384 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 18:21:30,385 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 18:21:30,385 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 18:21:30,385 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 18:21:30,394 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:21:30" (1/1) ... [2021-11-13 18:21:30,395 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:21:30" (1/1) ... [2021-11-13 18:21:30,440 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:21:30" (1/1) ... [2021-11-13 18:21:30,441 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:21:30" (1/1) ... [2021-11-13 18:21:30,583 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:21:30" (1/1) ... [2021-11-13 18:21:30,606 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:21:30" (1/1) ... [2021-11-13 18:21:30,638 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:21:30" (1/1) ... [2021-11-13 18:21:30,667 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 18:21:30,669 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 18:21:30,669 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 18:21:30,669 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 18:21:30,671 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:21:30" (1/1) ... [2021-11-13 18:21:30,680 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 18:21:30,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7df5df8d-6489-4a0b-bf4b-52dd4bd6e53f/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:21:30,712 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7df5df8d-6489-4a0b-bf4b-52dd4bd6e53f/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 18:21:30,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7df5df8d-6489-4a0b-bf4b-52dd4bd6e53f/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 18:21:30,765 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_90 [2021-11-13 18:21:30,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_90 [2021-11-13 18:21:30,766 INFO L130 BoogieDeclarations]: Found specification of procedure getlinkstatus [2021-11-13 18:21:30,766 INFO L138 BoogieDeclarations]: Found implementation of procedure getlinkstatus [2021-11-13 18:21:30,766 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2021-11-13 18:21:30,767 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2021-11-13 18:21:30,767 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-13 18:21:30,767 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-13 18:21:30,767 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-13 18:21:30,767 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-13 18:21:30,767 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-11-13 18:21:30,768 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-11-13 18:21:30,768 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-13 18:21:30,768 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-13 18:21:30,768 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-13 18:21:30,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-13 18:21:30,769 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-13 18:21:30,769 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-13 18:21:30,769 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2021-11-13 18:21:30,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2021-11-13 18:21:30,769 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-13 18:21:30,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-13 18:21:30,770 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-13 18:21:30,770 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-13 18:21:30,770 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2021-11-13 18:21:30,770 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2021-11-13 18:21:30,770 INFO L130 BoogieDeclarations]: Found specification of procedure fealnx_tx_timeout [2021-11-13 18:21:30,771 INFO L138 BoogieDeclarations]: Found implementation of procedure fealnx_tx_timeout [2021-11-13 18:21:30,771 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-13 18:21:30,771 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-13 18:21:30,771 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-13 18:21:30,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-13 18:21:30,771 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-13 18:21:30,772 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-13 18:21:30,772 INFO L130 BoogieDeclarations]: Found specification of procedure __set_rx_mode [2021-11-13 18:21:30,772 INFO L138 BoogieDeclarations]: Found implementation of procedure __set_rx_mode [2021-11-13 18:21:30,772 INFO L130 BoogieDeclarations]: Found specification of procedure getlinktype [2021-11-13 18:21:30,772 INFO L138 BoogieDeclarations]: Found implementation of procedure getlinktype [2021-11-13 18:21:30,773 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-13 18:21:30,773 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-13 18:21:30,773 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 18:21:30,773 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2021-11-13 18:21:30,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2021-11-13 18:21:30,774 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-13 18:21:30,774 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-13 18:21:30,774 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-13 18:21:30,774 INFO L130 BoogieDeclarations]: Found specification of procedure reset_rx_descriptors [2021-11-13 18:21:30,775 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_rx_descriptors [2021-11-13 18:21:30,775 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-13 18:21:30,775 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-13 18:21:30,775 INFO L130 BoogieDeclarations]: Found specification of procedure fealnx_remove_one [2021-11-13 18:21:30,775 INFO L138 BoogieDeclarations]: Found implementation of procedure fealnx_remove_one [2021-11-13 18:21:30,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-13 18:21:30,776 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-13 18:21:30,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-13 18:21:30,776 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-13 18:21:30,778 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2021-11-13 18:21:30,778 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2021-11-13 18:21:30,778 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-13 18:21:30,778 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-13 18:21:30,779 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-13 18:21:30,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-13 18:21:30,779 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-13 18:21:30,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-13 18:21:30,780 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-13 18:21:30,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-13 18:21:30,780 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-13 18:21:30,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-13 18:21:30,781 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-13 18:21:30,781 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-13 18:21:30,781 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-13 18:21:30,782 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-13 18:21:30,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-13 18:21:30,782 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-13 18:21:30,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-13 18:21:30,783 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_nway_reset [2021-11-13 18:21:30,783 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_nway_reset [2021-11-13 18:21:30,783 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-13 18:21:30,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-13 18:21:30,783 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-13 18:21:30,784 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-13 18:21:30,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-13 18:21:30,784 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-13 18:21:30,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-13 18:21:30,784 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-13 18:21:30,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-13 18:21:30,785 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2021-11-13 18:21:30,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2021-11-13 18:21:30,785 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2021-11-13 18:21:30,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2021-11-13 18:21:30,786 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-13 18:21:30,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-13 18:21:30,786 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-13 18:21:30,787 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-13 18:21:30,787 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-13 18:21:30,788 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-13 18:21:30,788 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-13 18:21:30,788 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-13 18:21:30,788 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-13 18:21:30,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-13 18:21:30,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_102 [2021-11-13 18:21:30,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_102 [2021-11-13 18:21:30,789 INFO L130 BoogieDeclarations]: Found specification of procedure stop_nic_rx [2021-11-13 18:21:30,789 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_nic_rx [2021-11-13 18:21:30,790 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2021-11-13 18:21:30,790 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2021-11-13 18:21:30,790 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 18:21:30,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 18:21:30,790 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-13 18:21:30,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-13 18:21:30,791 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-13 18:21:30,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-13 18:21:30,791 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_close [2021-11-13 18:21:30,792 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_close [2021-11-13 18:21:30,792 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-13 18:21:30,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-13 18:21:30,793 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_netdev_private [2021-11-13 18:21:30,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_netdev_private [2021-11-13 18:21:30,795 INFO L130 BoogieDeclarations]: Found specification of procedure enable_rxtx [2021-11-13 18:21:30,797 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_rxtx [2021-11-13 18:21:30,797 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-13 18:21:30,798 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-13 18:21:30,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-13 18:21:30,800 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-13 18:21:30,801 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-13 18:21:30,801 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-13 18:21:30,801 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-11-13 18:21:30,807 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-11-13 18:21:30,807 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-13 18:21:30,807 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-13 18:21:30,808 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-11-13 18:21:30,808 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-11-13 18:21:30,808 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 18:21:30,808 INFO L130 BoogieDeclarations]: Found specification of procedure reset_and_disable_rxtx [2021-11-13 18:21:30,808 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_and_disable_rxtx [2021-11-13 18:21:30,809 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-13 18:21:30,809 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-13 18:21:30,809 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-13 18:21:30,809 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-11-13 18:21:30,809 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-11-13 18:21:30,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-13 18:21:30,810 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-13 18:21:30,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-13 18:21:30,810 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-13 18:21:30,810 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-13 18:21:30,810 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_netdev_private [2021-11-13 18:21:30,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_netdev_private [2021-11-13 18:21:30,811 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-13 18:21:30,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-13 18:21:30,811 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_open [2021-11-13 18:21:30,811 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_open [2021-11-13 18:21:30,811 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-13 18:21:30,812 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-13 18:21:30,812 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-13 18:21:30,812 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-13 18:21:30,812 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_101 [2021-11-13 18:21:30,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_101 [2021-11-13 18:21:30,813 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-11-13 18:21:30,813 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-11-13 18:21:30,813 INFO L130 BoogieDeclarations]: Found specification of procedure stop_nic_rxtx [2021-11-13 18:21:30,813 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_nic_rxtx [2021-11-13 18:21:30,813 INFO L130 BoogieDeclarations]: Found specification of procedure m80x_send_cmd_to_phy [2021-11-13 18:21:30,813 INFO L138 BoogieDeclarations]: Found implementation of procedure m80x_send_cmd_to_phy [2021-11-13 18:21:30,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-13 18:21:30,814 INFO L130 BoogieDeclarations]: Found specification of procedure allocate_rx_buffers [2021-11-13 18:21:30,814 INFO L138 BoogieDeclarations]: Found implementation of procedure allocate_rx_buffers [2021-11-13 18:21:30,814 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-13 18:21:30,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-13 18:21:30,814 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-13 18:21:30,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-13 18:21:30,815 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2021-11-13 18:21:30,815 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2021-11-13 18:21:30,815 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-11-13 18:21:30,815 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-11-13 18:21:30,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 18:21:30,816 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-13 18:21:30,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-13 18:21:30,816 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_fealnx_exit_14_2 [2021-11-13 18:21:30,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_fealnx_exit_14_2 [2021-11-13 18:21:32,497 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-13 18:21:40,175 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-13 18:21:40,263 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 18:21:40,263 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-13 18:21:40,268 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:21:40 BoogieIcfgContainer [2021-11-13 18:21:40,269 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 18:21:40,271 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 18:21:40,271 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 18:21:40,275 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 18:21:40,275 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 06:21:25" (1/3) ... [2021-11-13 18:21:40,276 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73da06ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:21:40, skipping insertion in model container [2021-11-13 18:21:40,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:21:30" (2/3) ... [2021-11-13 18:21:40,276 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73da06ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:21:40, skipping insertion in model container [2021-11-13 18:21:40,277 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:21:40" (3/3) ... [2021-11-13 18:21:40,278 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-fealnx.cil.i [2021-11-13 18:21:40,284 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 18:21:40,285 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-13 18:21:40,351 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 18:21:40,358 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 [2021-11-13 18:21:40,358 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-13 18:21:40,416 INFO L276 IsEmpty]: Start isEmpty. Operand has 1571 states, 1099 states have (on average 1.2829845313921746) internal successors, (1410), 1118 states have internal predecessors, (1410), 390 states have call successors, (390), 82 states have call predecessors, (390), 81 states have return successors, (384), 381 states have call predecessors, (384), 384 states have call successors, (384) [2021-11-13 18:21:40,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2021-11-13 18:21:40,450 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:21:40,451 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 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] [2021-11-13 18:21:40,452 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:21:40,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:21:40,458 INFO L85 PathProgramCache]: Analyzing trace with hash -202043023, now seen corresponding path program 1 times [2021-11-13 18:21:40,468 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:21:40,468 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499518062] [2021-11-13 18:21:40,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:21:40,470 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:21:41,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:41,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 18:21:41,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:41,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:21:41,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:41,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 18:21:41,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:41,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:21:41,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:41,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-13 18:21:41,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:41,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:21:41,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:41,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 18:21:41,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:41,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:21:41,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:41,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-13 18:21:41,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:41,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:21:41,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:41,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 18:21:41,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:41,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:21:41,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:41,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-13 18:21:41,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:41,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:21:41,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:41,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-13 18:21:41,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:41,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:21:41,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:41,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-13 18:21:41,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:41,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:21:41,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:41,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-13 18:21:41,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:41,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-13 18:21:41,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:41,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-13 18:21:41,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:41,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-13 18:21:41,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:41,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-13 18:21:41,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:41,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-13 18:21:41,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:41,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-13 18:21:41,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:41,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-11-13 18:21:41,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:41,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2021-11-13 18:21:41,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:41,946 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 354 trivial. 0 not checked. [2021-11-13 18:21:41,947 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:21:41,947 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499518062] [2021-11-13 18:21:41,948 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499518062] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:21:41,948 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:21:41,948 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 18:21:41,950 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014574214] [2021-11-13 18:21:41,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:21:41,965 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 18:21:41,966 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:21:42,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 18:21:42,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:21:42,016 INFO L87 Difference]: Start difference. First operand has 1571 states, 1099 states have (on average 1.2829845313921746) internal successors, (1410), 1118 states have internal predecessors, (1410), 390 states have call successors, (390), 82 states have call predecessors, (390), 81 states have return successors, (384), 381 states have call predecessors, (384), 384 states have call successors, (384) Second operand has 5 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 4 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2021-11-13 18:21:44,104 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:21:46,205 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:21:48,364 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:21:56,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:21:56,273 INFO L93 Difference]: Finished difference Result 4639 states and 6551 transitions. [2021-11-13 18:21:56,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-13 18:21:56,276 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 4 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) Word has length 170 [2021-11-13 18:21:56,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:21:56,337 INFO L225 Difference]: With dead ends: 4639 [2021-11-13 18:21:56,338 INFO L226 Difference]: Without dead ends: 3012 [2021-11-13 18:21:56,355 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-13 18:21:56,360 INFO L933 BasicCegarLoop]: 2321 mSDtfsCounter, 3818 mSDsluCounter, 2673 mSDsCounter, 0 mSdLazyCounter, 2234 mSolverCounterSat, 2477 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12046.41ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4034 SdHoareTripleChecker+Valid, 4994 SdHoareTripleChecker+Invalid, 4714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 110.78ms SdHoareTripleChecker+Time, 2477 IncrementalHoareTripleChecker+Valid, 2234 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13534.77ms IncrementalHoareTripleChecker+Time [2021-11-13 18:21:56,363 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4034 Valid, 4994 Invalid, 4714 Unknown, 0 Unchecked, 110.78ms Time], IncrementalHoareTripleChecker [2477 Valid, 2234 Invalid, 3 Unknown, 0 Unchecked, 13534.77ms Time] [2021-11-13 18:21:56,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3012 states. [2021-11-13 18:21:56,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3012 to 2925. [2021-11-13 18:21:56,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2925 states, 2084 states have (on average 1.2802303262955854) internal successors, (2668), 2123 states have internal predecessors, (2668), 682 states have call successors, (682), 157 states have call predecessors, (682), 158 states have return successors, (692), 672 states have call predecessors, (692), 682 states have call successors, (692) [2021-11-13 18:21:56,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2925 states to 2925 states and 4042 transitions. [2021-11-13 18:21:56,698 INFO L78 Accepts]: Start accepts. Automaton has 2925 states and 4042 transitions. Word has length 170 [2021-11-13 18:21:56,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:21:56,703 INFO L470 AbstractCegarLoop]: Abstraction has 2925 states and 4042 transitions. [2021-11-13 18:21:56,703 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.25) internal successors, (61), 3 states have internal predecessors, (61), 4 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (19), 3 states have call predecessors, (19), 4 states have call successors, (19) [2021-11-13 18:21:56,704 INFO L276 IsEmpty]: Start isEmpty. Operand 2925 states and 4042 transitions. [2021-11-13 18:21:56,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2021-11-13 18:21:56,727 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:21:56,727 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 9, 9, 9, 9, 9, 9, 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] [2021-11-13 18:21:56,728 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-13 18:21:56,728 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:21:56,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:21:56,729 INFO L85 PathProgramCache]: Analyzing trace with hash -1910494452, now seen corresponding path program 1 times [2021-11-13 18:21:56,729 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:21:56,729 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629111541] [2021-11-13 18:21:56,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:21:56,730 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:21:56,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:56,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 18:21:56,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:56,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:21:56,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:57,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 18:21:57,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:57,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:21:57,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:57,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-13 18:21:57,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:57,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:21:57,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:57,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 18:21:57,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:57,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:21:57,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:57,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-13 18:21:57,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:57,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:21:57,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:57,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 18:21:57,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:57,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:21:57,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:57,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-13 18:21:57,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:57,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:21:57,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:57,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-13 18:21:57,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:57,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:21:57,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:57,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-13 18:21:57,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:57,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:21:57,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:57,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-13 18:21:57,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:57,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-11-13 18:21:57,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:57,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-11-13 18:21:57,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:57,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-13 18:21:57,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:57,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-13 18:21:57,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:57,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-11-13 18:21:57,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:57,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-11-13 18:21:57,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:21:57,243 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 384 trivial. 0 not checked. [2021-11-13 18:21:57,243 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:21:57,243 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629111541] [2021-11-13 18:21:57,248 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629111541] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:21:57,248 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:21:57,249 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-13 18:21:57,249 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995843236] [2021-11-13 18:21:57,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:21:57,252 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 18:21:57,252 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:21:57,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 18:21:57,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-13 18:21:57,253 INFO L87 Difference]: Start difference. First operand 2925 states and 4042 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2021-11-13 18:21:59,302 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:22:01,414 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:22:06,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:22:06,410 INFO L93 Difference]: Finished difference Result 7817 states and 10812 transitions. [2021-11-13 18:22:06,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 18:22:06,411 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 178 [2021-11-13 18:22:06,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:22:06,458 INFO L225 Difference]: With dead ends: 7817 [2021-11-13 18:22:06,459 INFO L226 Difference]: Without dead ends: 4915 [2021-11-13 18:22:06,478 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:22:06,480 INFO L933 BasicCegarLoop]: 2133 mSDtfsCounter, 2102 mSDsluCounter, 2210 mSDsCounter, 0 mSdLazyCounter, 1360 mSolverCounterSat, 878 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7768.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2359 SdHoareTripleChecker+Valid, 4343 SdHoareTripleChecker+Invalid, 2240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 55.41ms SdHoareTripleChecker+Time, 878 IncrementalHoareTripleChecker+Valid, 1360 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8622.34ms IncrementalHoareTripleChecker+Time [2021-11-13 18:22:06,481 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2359 Valid, 4343 Invalid, 2240 Unknown, 0 Unchecked, 55.41ms Time], IncrementalHoareTripleChecker [878 Valid, 1360 Invalid, 2 Unknown, 0 Unchecked, 8622.34ms Time] [2021-11-13 18:22:06,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4915 states. [2021-11-13 18:22:06,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4915 to 4756. [2021-11-13 18:22:06,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4756 states, 3410 states have (on average 1.2756598240469208) internal successors, (4350), 3470 states have internal predecessors, (4350), 1081 states have call successors, (1081), 263 states have call predecessors, (1081), 264 states have return successors, (1091), 1068 states have call predecessors, (1091), 1081 states have call successors, (1091) [2021-11-13 18:22:06,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4756 states to 4756 states and 6522 transitions. [2021-11-13 18:22:06,885 INFO L78 Accepts]: Start accepts. Automaton has 4756 states and 6522 transitions. Word has length 178 [2021-11-13 18:22:06,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:22:06,887 INFO L470 AbstractCegarLoop]: Abstraction has 4756 states and 6522 transitions. [2021-11-13 18:22:06,888 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2021-11-13 18:22:06,888 INFO L276 IsEmpty]: Start isEmpty. Operand 4756 states and 6522 transitions. [2021-11-13 18:22:06,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2021-11-13 18:22:06,901 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:22:06,902 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 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, 1, 1, 1, 1, 1, 1] [2021-11-13 18:22:06,902 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-13 18:22:06,902 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:22:06,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:22:06,903 INFO L85 PathProgramCache]: Analyzing trace with hash -104089921, now seen corresponding path program 1 times [2021-11-13 18:22:06,903 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:22:06,906 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534235384] [2021-11-13 18:22:06,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:22:06,907 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:22:07,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:07,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 18:22:07,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:07,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:22:07,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:07,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 18:22:07,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:07,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:22:07,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:07,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-13 18:22:07,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:07,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:22:07,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:07,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 18:22:07,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:07,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:22:07,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:07,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-13 18:22:07,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:07,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:22:07,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:07,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 18:22:07,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:07,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:22:07,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:07,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-13 18:22:07,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:07,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:22:07,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:07,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-13 18:22:07,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:07,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:22:07,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:07,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-13 18:22:07,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:07,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:22:07,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:07,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-13 18:22:07,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:07,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-13 18:22:07,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:07,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-11-13 18:22:07,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:07,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-13 18:22:07,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:07,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-13 18:22:07,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:07,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-13 18:22:07,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:07,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-11-13 18:22:07,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:07,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-11-13 18:22:07,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:07,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-11-13 18:22:07,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:07,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-11-13 18:22:07,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:07,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-13 18:22:07,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:07,560 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked. [2021-11-13 18:22:07,560 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:22:07,563 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534235384] [2021-11-13 18:22:07,563 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534235384] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:22:07,564 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:22:07,564 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 18:22:07,564 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070165818] [2021-11-13 18:22:07,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:22:07,566 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 18:22:07,566 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:22:07,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 18:22:07,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:22:07,567 INFO L87 Difference]: Start difference. First operand 4756 states and 6522 transitions. Second operand has 5 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 4 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) [2021-11-13 18:22:09,621 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:22:11,756 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:22:13,892 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:22:21,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:22:21,251 INFO L93 Difference]: Finished difference Result 13663 states and 18704 transitions. [2021-11-13 18:22:21,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-13 18:22:21,252 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 4 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) Word has length 187 [2021-11-13 18:22:21,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:22:21,328 INFO L225 Difference]: With dead ends: 13663 [2021-11-13 18:22:21,328 INFO L226 Difference]: Without dead ends: 8930 [2021-11-13 18:22:21,353 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-13 18:22:21,354 INFO L933 BasicCegarLoop]: 2097 mSDtfsCounter, 3750 mSDsluCounter, 2617 mSDsCounter, 0 mSdLazyCounter, 2131 mSolverCounterSat, 2285 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11723.45ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3929 SdHoareTripleChecker+Valid, 4714 SdHoareTripleChecker+Invalid, 4419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 69.75ms SdHoareTripleChecker+Time, 2285 IncrementalHoareTripleChecker+Valid, 2131 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13008.77ms IncrementalHoareTripleChecker+Time [2021-11-13 18:22:21,355 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3929 Valid, 4714 Invalid, 4419 Unknown, 0 Unchecked, 69.75ms Time], IncrementalHoareTripleChecker [2285 Valid, 2131 Invalid, 3 Unknown, 0 Unchecked, 13008.77ms Time] [2021-11-13 18:22:21,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8930 states. [2021-11-13 18:22:21,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8930 to 8612. [2021-11-13 18:22:21,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8612 states, 6151 states have (on average 1.2672736140464964) internal successors, (7795), 6259 states have internal predecessors, (7795), 1952 states have call successors, (1952), 508 states have call predecessors, (1952), 508 states have return successors, (1984), 1920 states have call predecessors, (1984), 1952 states have call successors, (1984) [2021-11-13 18:22:21,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8612 states to 8612 states and 11731 transitions. [2021-11-13 18:22:21,887 INFO L78 Accepts]: Start accepts. Automaton has 8612 states and 11731 transitions. Word has length 187 [2021-11-13 18:22:21,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:22:21,888 INFO L470 AbstractCegarLoop]: Abstraction has 8612 states and 11731 transitions. [2021-11-13 18:22:21,888 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 4 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) [2021-11-13 18:22:21,888 INFO L276 IsEmpty]: Start isEmpty. Operand 8612 states and 11731 transitions. [2021-11-13 18:22:21,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2021-11-13 18:22:21,896 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:22:21,896 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 9, 9, 9, 9, 9, 9, 2, 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, 1, 1, 1] [2021-11-13 18:22:21,896 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-13 18:22:21,897 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:22:21,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:22:21,897 INFO L85 PathProgramCache]: Analyzing trace with hash 42156166, now seen corresponding path program 1 times [2021-11-13 18:22:21,897 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:22:21,898 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345344246] [2021-11-13 18:22:21,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:22:21,898 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:22:22,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:22,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 18:22:22,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:22,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:22:22,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:22,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 18:22:22,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:22,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:22:22,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:22,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-13 18:22:22,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:22,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:22:22,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:22,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 18:22:22,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:22,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:22:22,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:22,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-13 18:22:22,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:22,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:22:22,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:22,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 18:22:22,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:22,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:22:22,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:22,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-13 18:22:22,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:22,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:22:22,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:22,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-13 18:22:22,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:22,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:22:22,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:22,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-13 18:22:22,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:22,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:22:22,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:22,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-13 18:22:22,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:22,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-13 18:22:22,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:22,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-11-13 18:22:22,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:22,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-11-13 18:22:22,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:22,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-11-13 18:22:22,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:22,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-11-13 18:22:22,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:22,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-13 18:22:22,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:22,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-13 18:22:22,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:22,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-11-13 18:22:22,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:22,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-11-13 18:22:22,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:22,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-11-13 18:22:22,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:22,511 INFO L134 CoverageAnalysis]: Checked inductivity of 395 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 388 trivial. 0 not checked. [2021-11-13 18:22:22,511 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:22:22,512 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345344246] [2021-11-13 18:22:22,512 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345344246] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:22:22,512 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:22:22,512 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 18:22:22,512 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718931100] [2021-11-13 18:22:22,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:22:22,513 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 18:22:22,513 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:22:22,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 18:22:22,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:22:22,533 INFO L87 Difference]: Start difference. First operand 8612 states and 11731 transitions. Second operand has 5 states, 4 states have (on average 18.75) internal successors, (75), 3 states have internal predecessors, (75), 4 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) [2021-11-13 18:22:24,586 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:22:26,705 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:22:28,818 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:22:35,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:22:35,744 INFO L93 Difference]: Finished difference Result 26356 states and 35986 transitions. [2021-11-13 18:22:35,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-13 18:22:35,746 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 18.75) internal successors, (75), 3 states have internal predecessors, (75), 4 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) Word has length 193 [2021-11-13 18:22:35,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:22:35,900 INFO L225 Difference]: With dead ends: 26356 [2021-11-13 18:22:35,900 INFO L226 Difference]: Without dead ends: 17767 [2021-11-13 18:22:35,946 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-13 18:22:35,947 INFO L933 BasicCegarLoop]: 2173 mSDtfsCounter, 4054 mSDsluCounter, 2661 mSDsCounter, 0 mSdLazyCounter, 2242 mSolverCounterSat, 2392 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11242.59ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4292 SdHoareTripleChecker+Valid, 4834 SdHoareTripleChecker+Invalid, 4637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 57.17ms SdHoareTripleChecker+Time, 2392 IncrementalHoareTripleChecker+Valid, 2242 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12455.53ms IncrementalHoareTripleChecker+Time [2021-11-13 18:22:35,948 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4292 Valid, 4834 Invalid, 4637 Unknown, 0 Unchecked, 57.17ms Time], IncrementalHoareTripleChecker [2392 Valid, 2242 Invalid, 3 Unknown, 0 Unchecked, 12455.53ms Time] [2021-11-13 18:22:35,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17767 states. [2021-11-13 18:22:37,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17767 to 17123. [2021-11-13 18:22:37,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17123 states, 12219 states have (on average 1.2671249693100908) internal successors, (15483), 12447 states have internal predecessors, (15483), 3887 states have call successors, (3887), 1016 states have call predecessors, (3887), 1016 states have return successors, (3951), 3811 states have call predecessors, (3951), 3887 states have call successors, (3951) [2021-11-13 18:22:37,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17123 states to 17123 states and 23321 transitions. [2021-11-13 18:22:37,133 INFO L78 Accepts]: Start accepts. Automaton has 17123 states and 23321 transitions. Word has length 193 [2021-11-13 18:22:37,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:22:37,135 INFO L470 AbstractCegarLoop]: Abstraction has 17123 states and 23321 transitions. [2021-11-13 18:22:37,136 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 18.75) internal successors, (75), 3 states have internal predecessors, (75), 4 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (21), 3 states have call predecessors, (21), 4 states have call successors, (21) [2021-11-13 18:22:37,136 INFO L276 IsEmpty]: Start isEmpty. Operand 17123 states and 23321 transitions. [2021-11-13 18:22:37,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2021-11-13 18:22:37,152 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:22:37,152 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 9, 9, 9, 9, 9, 9, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:22:37,153 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-13 18:22:37,153 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:22:37,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:22:37,154 INFO L85 PathProgramCache]: Analyzing trace with hash -2093667309, now seen corresponding path program 1 times [2021-11-13 18:22:37,154 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:22:37,154 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743587908] [2021-11-13 18:22:37,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:22:37,155 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:22:37,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:37,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 18:22:37,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:37,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:22:37,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:37,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 18:22:37,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:37,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:22:37,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:37,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-13 18:22:37,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:37,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:22:37,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:37,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 18:22:37,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:37,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:22:37,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:37,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-13 18:22:37,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:37,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:22:37,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:37,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 18:22:37,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:37,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:22:37,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:37,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-13 18:22:37,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:37,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:22:37,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:37,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-13 18:22:37,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:37,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:22:37,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:37,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-13 18:22:37,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:37,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:22:37,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:37,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-13 18:22:37,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:37,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-11-13 18:22:37,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:37,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-13 18:22:37,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:37,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-11-13 18:22:37,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:37,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-11-13 18:22:37,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:37,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-11-13 18:22:37,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:37,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-11-13 18:22:37,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:37,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-11-13 18:22:37,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:37,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-13 18:22:37,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:37,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-13 18:22:37,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:37,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-11-13 18:22:37,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:37,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-11-13 18:22:37,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:37,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-11-13 18:22:37,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:37,798 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 436 trivial. 0 not checked. [2021-11-13 18:22:37,799 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:22:37,799 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743587908] [2021-11-13 18:22:37,799 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743587908] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:22:37,799 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:22:37,799 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 18:22:37,800 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459047290] [2021-11-13 18:22:37,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:22:37,800 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 18:22:37,801 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:22:37,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 18:22:37,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:22:37,802 INFO L87 Difference]: Start difference. First operand 17123 states and 23321 transitions. Second operand has 5 states, 4 states have (on average 20.25) internal successors, (81), 3 states have internal predecessors, (81), 4 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) [2021-11-13 18:22:39,875 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:22:41,985 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:22:44,107 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:22:49,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:22:49,553 INFO L93 Difference]: Finished difference Result 35614 states and 48447 transitions. [2021-11-13 18:22:49,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-13 18:22:49,554 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 20.25) internal successors, (81), 3 states have internal predecessors, (81), 4 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) Word has length 213 [2021-11-13 18:22:49,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:22:49,652 INFO L225 Difference]: With dead ends: 35614 [2021-11-13 18:22:49,652 INFO L226 Difference]: Without dead ends: 18514 [2021-11-13 18:22:49,724 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-13 18:22:49,725 INFO L933 BasicCegarLoop]: 2133 mSDtfsCounter, 2220 mSDsluCounter, 2585 mSDsCounter, 0 mSdLazyCounter, 1905 mSolverCounterSat, 1473 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10062.71ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2321 SdHoareTripleChecker+Valid, 4718 SdHoareTripleChecker+Invalid, 3381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 38.87ms SdHoareTripleChecker+Time, 1473 IncrementalHoareTripleChecker+Valid, 1905 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11045.96ms IncrementalHoareTripleChecker+Time [2021-11-13 18:22:49,725 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2321 Valid, 4718 Invalid, 3381 Unknown, 0 Unchecked, 38.87ms Time], IncrementalHoareTripleChecker [1473 Valid, 1905 Invalid, 3 Unknown, 0 Unchecked, 11045.96ms Time] [2021-11-13 18:22:49,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18514 states. [2021-11-13 18:22:50,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18514 to 17849. [2021-11-13 18:22:50,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17849 states, 12742 states have (on average 1.263145503060744) internal successors, (16095), 12975 states have internal predecessors, (16095), 4009 states have call successors, (4009), 1097 states have call predecessors, (4009), 1097 states have return successors, (4073), 3933 states have call predecessors, (4073), 4009 states have call successors, (4073) [2021-11-13 18:22:50,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17849 states to 17849 states and 24177 transitions. [2021-11-13 18:22:50,791 INFO L78 Accepts]: Start accepts. Automaton has 17849 states and 24177 transitions. Word has length 213 [2021-11-13 18:22:50,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:22:50,792 INFO L470 AbstractCegarLoop]: Abstraction has 17849 states and 24177 transitions. [2021-11-13 18:22:50,792 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 20.25) internal successors, (81), 3 states have internal predecessors, (81), 4 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (22), 3 states have call predecessors, (22), 4 states have call successors, (22) [2021-11-13 18:22:50,793 INFO L276 IsEmpty]: Start isEmpty. Operand 17849 states and 24177 transitions. [2021-11-13 18:22:50,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2021-11-13 18:22:50,807 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:22:50,808 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 6, 6, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:22:50,808 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-13 18:22:50,808 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:22:50,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:22:50,809 INFO L85 PathProgramCache]: Analyzing trace with hash 128364730, now seen corresponding path program 1 times [2021-11-13 18:22:50,809 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:22:50,809 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463556821] [2021-11-13 18:22:50,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:22:50,810 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:22:50,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:51,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 18:22:51,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:51,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:22:51,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:51,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 18:22:51,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:51,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:22:51,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:51,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-13 18:22:51,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:51,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:22:51,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:51,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 18:22:51,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:51,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:22:51,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:51,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-13 18:22:51,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:51,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:22:51,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:51,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 18:22:51,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:51,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:22:51,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:51,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-13 18:22:51,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:51,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:22:51,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:51,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-13 18:22:51,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:51,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:22:51,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:51,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-13 18:22:51,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:51,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:22:51,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:51,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-13 18:22:51,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:51,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-11-13 18:22:51,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:51,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-11-13 18:22:51,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:51,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-11-13 18:22:51,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:51,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-13 18:22:51,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:51,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-13 18:22:51,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:51,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-11-13 18:22:51,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:51,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-11-13 18:22:51,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:51,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:22:51,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:51,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-13 18:22:51,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:51,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:22:51,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:51,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-11-13 18:22:51,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:51,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-13 18:22:51,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:51,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-11-13 18:22:51,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:51,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-11-13 18:22:51,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:51,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-11-13 18:22:51,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:51,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-11-13 18:22:51,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:51,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-11-13 18:22:51,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:22:51,368 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 405 trivial. 0 not checked. [2021-11-13 18:22:51,368 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:22:51,368 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463556821] [2021-11-13 18:22:51,368 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463556821] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:22:51,369 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:22:51,369 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 18:22:51,369 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833697796] [2021-11-13 18:22:51,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:22:51,370 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 18:22:51,370 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:22:51,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 18:22:51,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:22:51,371 INFO L87 Difference]: Start difference. First operand 17849 states and 24177 transitions. Second operand has 5 states, 4 states have (on average 23.0) internal successors, (92), 3 states have internal predecessors, (92), 4 states have call successors, (34), 4 states have call predecessors, (34), 1 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) [2021-11-13 18:22:53,428 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:22:55,585 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:22:57,710 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:23:04,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:23:04,176 INFO L93 Difference]: Finished difference Result 49235 states and 67043 transitions. [2021-11-13 18:23:04,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-13 18:23:04,176 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 23.0) internal successors, (92), 3 states have internal predecessors, (92), 4 states have call successors, (34), 4 states have call predecessors, (34), 1 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) Word has length 234 [2021-11-13 18:23:04,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:23:04,351 INFO L225 Difference]: With dead ends: 49235 [2021-11-13 18:23:04,352 INFO L226 Difference]: Without dead ends: 31409 [2021-11-13 18:23:04,419 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-13 18:23:04,421 INFO L933 BasicCegarLoop]: 2065 mSDtfsCounter, 3790 mSDsluCounter, 2565 mSDsCounter, 0 mSdLazyCounter, 2226 mSolverCounterSat, 2345 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10542.45ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3993 SdHoareTripleChecker+Valid, 4630 SdHoareTripleChecker+Invalid, 4574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 39.59ms SdHoareTripleChecker+Time, 2345 IncrementalHoareTripleChecker+Valid, 2226 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11711.69ms IncrementalHoareTripleChecker+Time [2021-11-13 18:23:04,422 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3993 Valid, 4630 Invalid, 4574 Unknown, 0 Unchecked, 39.59ms Time], IncrementalHoareTripleChecker [2345 Valid, 2226 Invalid, 3 Unknown, 0 Unchecked, 11711.69ms Time] [2021-11-13 18:23:04,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31409 states. [2021-11-13 18:23:05,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31409 to 30233. [2021-11-13 18:23:05,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30233 states, 21446 states have (on average 1.2687214398955515) internal successors, (27209), 21872 states have internal predecessors, (27209), 6876 states have call successors, (6876), 1914 states have call predecessors, (6876), 1910 states have return successors, (7004), 6712 states have call predecessors, (7004), 6876 states have call successors, (7004) [2021-11-13 18:23:06,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30233 states to 30233 states and 41089 transitions. [2021-11-13 18:23:06,157 INFO L78 Accepts]: Start accepts. Automaton has 30233 states and 41089 transitions. Word has length 234 [2021-11-13 18:23:06,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:23:06,158 INFO L470 AbstractCegarLoop]: Abstraction has 30233 states and 41089 transitions. [2021-11-13 18:23:06,159 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 23.0) internal successors, (92), 3 states have internal predecessors, (92), 4 states have call successors, (34), 4 states have call predecessors, (34), 1 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) [2021-11-13 18:23:06,159 INFO L276 IsEmpty]: Start isEmpty. Operand 30233 states and 41089 transitions. [2021-11-13 18:23:06,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2021-11-13 18:23:06,169 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:23:06,170 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 9, 9, 9, 9, 9, 9, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:23:06,170 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-13 18:23:06,170 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:23:06,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:23:06,171 INFO L85 PathProgramCache]: Analyzing trace with hash 1312334784, now seen corresponding path program 1 times [2021-11-13 18:23:06,171 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:23:06,171 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654046318] [2021-11-13 18:23:06,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:23:06,172 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:23:06,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:06,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 18:23:06,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:06,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:23:06,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:06,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 18:23:06,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:06,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:23:06,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:06,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-13 18:23:06,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:06,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:23:06,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:06,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 18:23:06,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:06,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:23:06,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:06,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-13 18:23:06,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:06,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:23:06,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:06,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 18:23:06,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:06,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:23:06,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:06,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-13 18:23:06,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:06,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:23:06,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:06,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-13 18:23:06,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:06,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:23:06,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:06,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-13 18:23:06,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:06,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:23:06,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:06,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-13 18:23:06,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:06,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-13 18:23:06,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:06,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-11-13 18:23:06,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:06,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-11-13 18:23:06,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:06,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-13 18:23:06,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:06,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-11-13 18:23:06,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:06,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:23:06,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:06,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-11-13 18:23:06,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:06,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-13 18:23:06,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:06,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-11-13 18:23:06,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:06,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-13 18:23:06,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:06,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-11-13 18:23:06,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:06,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-11-13 18:23:06,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:06,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-11-13 18:23:06,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:06,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-11-13 18:23:06,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:06,923 INFO L134 CoverageAnalysis]: Checked inductivity of 535 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 532 trivial. 0 not checked. [2021-11-13 18:23:06,923 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:23:06,924 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654046318] [2021-11-13 18:23:06,924 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654046318] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:23:06,924 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:23:06,924 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-13 18:23:06,925 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170275900] [2021-11-13 18:23:06,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:23:06,926 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-13 18:23:06,926 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:23:06,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-13 18:23:06,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-13 18:23:06,927 INFO L87 Difference]: Start difference. First operand 30233 states and 41089 transitions. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 3 states have internal predecessors, (100), 3 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-11-13 18:23:09,008 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:23:11,136 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:23:15,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:23:15,876 INFO L93 Difference]: Finished difference Result 72393 states and 98534 transitions. [2021-11-13 18:23:15,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 18:23:15,877 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 3 states have internal predecessors, (100), 3 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 242 [2021-11-13 18:23:15,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:23:16,113 INFO L225 Difference]: With dead ends: 72393 [2021-11-13 18:23:16,113 INFO L226 Difference]: Without dead ends: 42239 [2021-11-13 18:23:16,215 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:23:16,217 INFO L933 BasicCegarLoop]: 2841 mSDtfsCounter, 1945 mSDsluCounter, 2632 mSDsCounter, 0 mSdLazyCounter, 1365 mSolverCounterSat, 756 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6828.70ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2204 SdHoareTripleChecker+Valid, 5473 SdHoareTripleChecker+Invalid, 2123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 28.33ms SdHoareTripleChecker+Time, 756 IncrementalHoareTripleChecker+Valid, 1365 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7545.17ms IncrementalHoareTripleChecker+Time [2021-11-13 18:23:16,218 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2204 Valid, 5473 Invalid, 2123 Unknown, 0 Unchecked, 28.33ms Time], IncrementalHoareTripleChecker [756 Valid, 1365 Invalid, 2 Unknown, 0 Unchecked, 7545.17ms Time] [2021-11-13 18:23:16,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42239 states. [2021-11-13 18:23:18,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42239 to 40585. [2021-11-13 18:23:18,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40585 states, 28864 states have (on average 1.265763580931264) internal successors, (36535), 29416 states have internal predecessors, (36535), 9106 states have call successors, (9106), 2618 states have call predecessors, (9106), 2614 states have return successors, (9234), 8906 states have call predecessors, (9234), 9106 states have call successors, (9234) [2021-11-13 18:23:18,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40585 states to 40585 states and 54875 transitions. [2021-11-13 18:23:18,748 INFO L78 Accepts]: Start accepts. Automaton has 40585 states and 54875 transitions. Word has length 242 [2021-11-13 18:23:18,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:23:18,756 INFO L470 AbstractCegarLoop]: Abstraction has 40585 states and 54875 transitions. [2021-11-13 18:23:18,757 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 3 states have internal predecessors, (100), 3 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-11-13 18:23:18,757 INFO L276 IsEmpty]: Start isEmpty. Operand 40585 states and 54875 transitions. [2021-11-13 18:23:18,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2021-11-13 18:23:18,770 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:23:18,771 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 9, 9, 9, 9, 9, 9, 6, 6, 6, 4, 4, 4, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:23:18,771 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-13 18:23:18,771 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:23:18,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:23:18,772 INFO L85 PathProgramCache]: Analyzing trace with hash -130053747, now seen corresponding path program 1 times [2021-11-13 18:23:18,772 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:23:18,772 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448413376] [2021-11-13 18:23:18,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:23:18,773 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:23:18,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:19,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 18:23:19,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:19,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:23:19,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:19,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 18:23:19,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:19,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:23:19,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:19,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-13 18:23:19,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:19,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:23:19,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:19,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 18:23:19,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:19,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:23:19,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:19,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-13 18:23:19,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:19,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:23:19,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:19,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 18:23:19,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:19,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:23:19,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:19,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-13 18:23:19,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:19,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:23:19,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:19,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-13 18:23:19,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:19,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:23:19,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:19,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-13 18:23:19,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:19,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:23:19,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:19,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-13 18:23:19,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:19,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-13 18:23:19,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:19,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-11-13 18:23:19,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:19,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-11-13 18:23:19,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:19,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-11-13 18:23:19,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:19,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:23:19,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:19,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-13 18:23:19,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:19,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-11-13 18:23:19,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:19,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-11-13 18:23:19,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:19,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-13 18:23:19,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:19,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-11-13 18:23:19,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:19,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-11-13 18:23:19,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:19,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-11-13 18:23:19,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:19,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-11-13 18:23:19,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:19,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-11-13 18:23:19,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:19,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-13 18:23:19,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:19,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-13 18:23:19,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:19,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-11-13 18:23:19,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:19,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-11-13 18:23:19,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:19,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2021-11-13 18:23:19,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:19,520 INFO L134 CoverageAnalysis]: Checked inductivity of 622 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 601 trivial. 0 not checked. [2021-11-13 18:23:19,521 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:23:19,521 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448413376] [2021-11-13 18:23:19,521 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448413376] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:23:19,522 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:23:19,522 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 18:23:19,522 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628749349] [2021-11-13 18:23:19,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:23:19,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 18:23:19,523 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:23:19,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 18:23:19,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:23:19,524 INFO L87 Difference]: Start difference. First operand 40585 states and 54875 transitions. Second operand has 5 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 4 states have call successors, (32), 4 states have call predecessors, (32), 1 states have return successors, (29), 3 states have call predecessors, (29), 4 states have call successors, (29) [2021-11-13 18:23:21,581 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:23:23,689 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:23:25,858 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:23:34,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:23:34,170 INFO L93 Difference]: Finished difference Result 122765 states and 166514 transitions. [2021-11-13 18:23:34,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-13 18:23:34,171 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 4 states have call successors, (32), 4 states have call predecessors, (32), 1 states have return successors, (29), 3 states have call predecessors, (29), 4 states have call successors, (29) Word has length 269 [2021-11-13 18:23:34,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:23:34,616 INFO L225 Difference]: With dead ends: 122765 [2021-11-13 18:23:34,616 INFO L226 Difference]: Without dead ends: 82259 [2021-11-13 18:23:34,772 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-13 18:23:34,773 INFO L933 BasicCegarLoop]: 3723 mSDtfsCounter, 2831 mSDsluCounter, 3861 mSDsCounter, 0 mSdLazyCounter, 2401 mSolverCounterSat, 1719 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10754.70ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3061 SdHoareTripleChecker+Valid, 7584 SdHoareTripleChecker+Invalid, 4123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 43.91ms SdHoareTripleChecker+Time, 1719 IncrementalHoareTripleChecker+Valid, 2401 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11873.75ms IncrementalHoareTripleChecker+Time [2021-11-13 18:23:34,773 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3061 Valid, 7584 Invalid, 4123 Unknown, 0 Unchecked, 43.91ms Time], IncrementalHoareTripleChecker [1719 Valid, 2401 Invalid, 3 Unknown, 0 Unchecked, 11873.75ms Time] [2021-11-13 18:23:34,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82259 states. [2021-11-13 18:23:37,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82259 to 78929. [2021-11-13 18:23:38,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78929 states, 56218 states have (on average 1.2668006688249316) internal successors, (71217), 57242 states have internal predecessors, (71217), 17626 states have call successors, (17626), 5092 states have call predecessors, (17626), 5084 states have return successors, (17882), 17306 states have call predecessors, (17882), 17626 states have call successors, (17882) [2021-11-13 18:23:38,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78929 states to 78929 states and 106725 transitions. [2021-11-13 18:23:38,819 INFO L78 Accepts]: Start accepts. Automaton has 78929 states and 106725 transitions. Word has length 269 [2021-11-13 18:23:38,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:23:38,832 INFO L470 AbstractCegarLoop]: Abstraction has 78929 states and 106725 transitions. [2021-11-13 18:23:38,832 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 4 states have call successors, (32), 4 states have call predecessors, (32), 1 states have return successors, (29), 3 states have call predecessors, (29), 4 states have call successors, (29) [2021-11-13 18:23:38,832 INFO L276 IsEmpty]: Start isEmpty. Operand 78929 states and 106725 transitions. [2021-11-13 18:23:38,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2021-11-13 18:23:38,849 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:23:38,849 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 9, 9, 9, 9, 9, 9, 6, 6, 6, 4, 4, 4, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:23:38,849 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-13 18:23:38,850 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:23:38,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:23:38,850 INFO L85 PathProgramCache]: Analyzing trace with hash -1777416689, now seen corresponding path program 1 times [2021-11-13 18:23:38,851 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:23:38,851 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600617112] [2021-11-13 18:23:38,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:23:38,851 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:23:38,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:39,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 18:23:39,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:39,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:23:39,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:39,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 18:23:39,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:39,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:23:39,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:39,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-13 18:23:39,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:39,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:23:39,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:39,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 18:23:39,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:39,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:23:39,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:39,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-13 18:23:39,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:39,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:23:39,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:39,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 18:23:39,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:39,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:23:39,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:39,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-13 18:23:39,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:39,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:23:39,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:39,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-13 18:23:39,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:39,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:23:39,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:39,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-13 18:23:39,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:39,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:23:39,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:39,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-13 18:23:39,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:39,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-13 18:23:39,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:39,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-11-13 18:23:39,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:39,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-11-13 18:23:39,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:39,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-11-13 18:23:39,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:39,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:23:39,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:39,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-13 18:23:39,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:39,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-11-13 18:23:39,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:39,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-11-13 18:23:39,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:39,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-11-13 18:23:39,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:39,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-11-13 18:23:39,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:39,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-11-13 18:23:39,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:39,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-11-13 18:23:39,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:39,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-11-13 18:23:39,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:39,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-11-13 18:23:39,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:39,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-13 18:23:39,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:39,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-13 18:23:39,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:39,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-11-13 18:23:39,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:39,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-11-13 18:23:39,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:39,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2021-11-13 18:23:39,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:23:39,400 INFO L134 CoverageAnalysis]: Checked inductivity of 622 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 601 trivial. 0 not checked. [2021-11-13 18:23:39,400 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:23:39,401 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600617112] [2021-11-13 18:23:39,401 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600617112] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:23:39,401 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:23:39,401 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 18:23:39,401 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26162224] [2021-11-13 18:23:39,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:23:39,404 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 18:23:39,404 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:23:39,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 18:23:39,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:23:39,405 INFO L87 Difference]: Start difference. First operand 78929 states and 106725 transitions. Second operand has 5 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 4 states have call successors, (32), 4 states have call predecessors, (32), 1 states have return successors, (29), 3 states have call predecessors, (29), 4 states have call successors, (29) [2021-11-13 18:23:41,707 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:23:43,833 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:23:45,966 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:23:55,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:23:55,823 INFO L93 Difference]: Finished difference Result 201161 states and 272687 transitions. [2021-11-13 18:23:55,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-13 18:23:55,824 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 4 states have call successors, (32), 4 states have call predecessors, (32), 1 states have return successors, (29), 3 states have call predecessors, (29), 4 states have call successors, (29) Word has length 269 [2021-11-13 18:23:55,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:23:56,481 INFO L225 Difference]: With dead ends: 201161 [2021-11-13 18:23:56,481 INFO L226 Difference]: Without dead ends: 121790 [2021-11-13 18:23:56,772 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-13 18:23:56,775 INFO L933 BasicCegarLoop]: 2550 mSDtfsCounter, 3543 mSDsluCounter, 2823 mSDsCounter, 0 mSdLazyCounter, 2276 mSolverCounterSat, 2202 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11007.60ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3772 SdHoareTripleChecker+Valid, 5373 SdHoareTripleChecker+Invalid, 4481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 39.71ms SdHoareTripleChecker+Time, 2202 IncrementalHoareTripleChecker+Valid, 2276 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12123.47ms IncrementalHoareTripleChecker+Time [2021-11-13 18:23:56,776 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3772 Valid, 5373 Invalid, 4481 Unknown, 0 Unchecked, 39.71ms Time], IncrementalHoareTripleChecker [2202 Valid, 2276 Invalid, 3 Unknown, 0 Unchecked, 12123.47ms Time] [2021-11-13 18:23:56,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121790 states. [2021-11-13 18:24:01,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121790 to 116816. [2021-11-13 18:24:01,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116816 states, 83163 states have (on average 1.2675709149501582) internal successors, (105415), 84660 states have internal predecessors, (105415), 26113 states have call successors, (26113), 7554 states have call predecessors, (26113), 7539 states have return successors, (26493), 25669 states have call predecessors, (26493), 26109 states have call successors, (26493) [2021-11-13 18:24:02,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116816 states to 116816 states and 158021 transitions. [2021-11-13 18:24:02,236 INFO L78 Accepts]: Start accepts. Automaton has 116816 states and 158021 transitions. Word has length 269 [2021-11-13 18:24:02,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:24:02,237 INFO L470 AbstractCegarLoop]: Abstraction has 116816 states and 158021 transitions. [2021-11-13 18:24:02,237 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 27.0) internal successors, (108), 3 states have internal predecessors, (108), 4 states have call successors, (32), 4 states have call predecessors, (32), 1 states have return successors, (29), 3 states have call predecessors, (29), 4 states have call successors, (29) [2021-11-13 18:24:02,237 INFO L276 IsEmpty]: Start isEmpty. Operand 116816 states and 158021 transitions. [2021-11-13 18:24:02,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2021-11-13 18:24:02,260 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:24:02,261 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 9, 9, 9, 9, 9, 9, 7, 7, 7, 5, 5, 5, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:24:02,261 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-13 18:24:02,261 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:24:02,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:24:02,262 INFO L85 PathProgramCache]: Analyzing trace with hash -1470125723, now seen corresponding path program 1 times [2021-11-13 18:24:02,262 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:24:02,262 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906221583] [2021-11-13 18:24:02,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:24:02,263 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:24:02,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:02,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 18:24:02,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:02,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:24:02,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:02,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 18:24:02,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:02,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:24:02,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:02,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-13 18:24:02,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:02,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:24:02,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:02,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 18:24:02,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:02,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:24:02,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:02,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-13 18:24:02,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:02,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:24:02,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:02,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 18:24:02,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:02,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:24:02,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:02,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-13 18:24:02,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:02,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:24:02,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:02,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-13 18:24:02,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:02,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:24:02,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:02,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-13 18:24:02,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:02,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:24:02,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:02,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-13 18:24:02,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:03,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-13 18:24:03,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:03,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-11-13 18:24:03,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:03,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-11-13 18:24:03,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:03,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-11-13 18:24:03,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:03,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:24:03,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:03,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-13 18:24:03,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:03,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-11-13 18:24:03,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:03,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-11-13 18:24:03,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:03,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-11-13 18:24:03,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:03,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-11-13 18:24:03,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:03,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-11-13 18:24:03,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:03,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-11-13 18:24:03,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:03,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2021-11-13 18:24:03,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:03,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-11-13 18:24:03,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:03,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2021-11-13 18:24:03,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:03,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-11-13 18:24:03,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:03,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2021-11-13 18:24:03,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:03,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-13 18:24:03,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:03,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-13 18:24:03,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:03,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-11-13 18:24:03,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:03,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-11-13 18:24:03,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:03,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2021-11-13 18:24:03,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:03,226 INFO L134 CoverageAnalysis]: Checked inductivity of 764 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 727 trivial. 0 not checked. [2021-11-13 18:24:03,227 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:24:03,227 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906221583] [2021-11-13 18:24:03,227 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906221583] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:24:03,227 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:24:03,228 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 18:24:03,228 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112573518] [2021-11-13 18:24:03,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:24:03,229 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 18:24:03,230 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:24:03,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 18:24:03,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 18:24:03,231 INFO L87 Difference]: Start difference. First operand 116816 states and 158021 transitions. Second operand has 5 states, 4 states have (on average 28.0) internal successors, (112), 3 states have internal predecessors, (112), 4 states have call successors, (34), 4 states have call predecessors, (34), 1 states have return successors, (31), 3 states have call predecessors, (31), 4 states have call successors, (31) [2021-11-13 18:24:05,281 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:24:07,398 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:24:09,518 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:24:20,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:24:20,458 INFO L93 Difference]: Finished difference Result 278387 states and 377340 transitions. [2021-11-13 18:24:20,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-13 18:24:20,471 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 28.0) internal successors, (112), 3 states have internal predecessors, (112), 4 states have call successors, (34), 4 states have call predecessors, (34), 1 states have return successors, (31), 3 states have call predecessors, (31), 4 states have call successors, (31) Word has length 293 [2021-11-13 18:24:20,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:24:21,629 INFO L225 Difference]: With dead ends: 278387 [2021-11-13 18:24:21,630 INFO L226 Difference]: Without dead ends: 161321 [2021-11-13 18:24:21,967 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-13 18:24:21,968 INFO L933 BasicCegarLoop]: 3286 mSDtfsCounter, 3452 mSDsluCounter, 3787 mSDsCounter, 0 mSdLazyCounter, 2349 mSolverCounterSat, 1924 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10413.97ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3681 SdHoareTripleChecker+Valid, 7073 SdHoareTripleChecker+Invalid, 4276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 40.55ms SdHoareTripleChecker+Time, 1924 IncrementalHoareTripleChecker+Valid, 2349 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11459.97ms IncrementalHoareTripleChecker+Time [2021-11-13 18:24:21,968 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3681 Valid, 7073 Invalid, 4276 Unknown, 0 Unchecked, 40.55ms Time], IncrementalHoareTripleChecker [1924 Valid, 2349 Invalid, 3 Unknown, 0 Unchecked, 11459.97ms Time] [2021-11-13 18:24:22,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161321 states. [2021-11-13 18:24:27,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161321 to 116816. [2021-11-13 18:24:27,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116816 states, 83163 states have (on average 1.2675588903719202) internal successors, (105414), 84660 states have internal predecessors, (105414), 26113 states have call successors, (26113), 7554 states have call predecessors, (26113), 7539 states have return successors, (26493), 25669 states have call predecessors, (26493), 26109 states have call successors, (26493) [2021-11-13 18:24:28,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116816 states to 116816 states and 158020 transitions. [2021-11-13 18:24:28,309 INFO L78 Accepts]: Start accepts. Automaton has 116816 states and 158020 transitions. Word has length 293 [2021-11-13 18:24:28,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:24:28,310 INFO L470 AbstractCegarLoop]: Abstraction has 116816 states and 158020 transitions. [2021-11-13 18:24:28,310 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 28.0) internal successors, (112), 3 states have internal predecessors, (112), 4 states have call successors, (34), 4 states have call predecessors, (34), 1 states have return successors, (31), 3 states have call predecessors, (31), 4 states have call successors, (31) [2021-11-13 18:24:28,310 INFO L276 IsEmpty]: Start isEmpty. Operand 116816 states and 158020 transitions. [2021-11-13 18:24:28,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2021-11-13 18:24:28,327 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:24:28,327 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 9, 9, 9, 9, 9, 9, 7, 7, 7, 5, 5, 5, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:24:28,328 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-13 18:24:28,328 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-13 18:24:28,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:24:28,329 INFO L85 PathProgramCache]: Analyzing trace with hash 1177478631, now seen corresponding path program 1 times [2021-11-13 18:24:28,329 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:24:28,329 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080783924] [2021-11-13 18:24:28,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:24:28,330 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:24:28,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:28,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-13 18:24:28,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:28,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:24:28,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:28,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-13 18:24:28,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:28,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:24:28,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:28,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-13 18:24:28,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:28,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:24:28,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:28,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-13 18:24:28,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:28,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:24:28,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:28,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-13 18:24:28,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:28,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:24:28,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:28,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-13 18:24:28,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:28,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:24:28,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:28,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-13 18:24:28,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:28,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:24:28,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:28,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-13 18:24:28,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:28,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:24:28,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:28,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-13 18:24:28,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:28,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:24:28,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:28,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-11-13 18:24:28,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:28,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-13 18:24:28,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:28,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-11-13 18:24:28,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:28,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-11-13 18:24:28,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:28,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-11-13 18:24:28,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:28,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-13 18:24:28,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:28,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-13 18:24:28,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:28,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-11-13 18:24:28,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:28,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2021-11-13 18:24:28,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:28,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-11-13 18:24:28,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:28,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-11-13 18:24:28,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:28,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-11-13 18:24:28,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:28,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-11-13 18:24:28,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:29,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2021-11-13 18:24:29,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:29,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-11-13 18:24:29,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:29,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2021-11-13 18:24:29,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:29,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-11-13 18:24:29,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:29,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2021-11-13 18:24:29,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:29,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-11-13 18:24:29,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:29,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-13 18:24:29,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:29,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-11-13 18:24:29,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:29,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-11-13 18:24:29,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:29,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2021-11-13 18:24:29,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:24:29,198 INFO L134 CoverageAnalysis]: Checked inductivity of 764 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 764 trivial. 0 not checked. [2021-11-13 18:24:29,198 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:24:29,198 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080783924] [2021-11-13 18:24:29,199 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080783924] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:24:29,199 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:24:29,199 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 18:24:29,200 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967159231] [2021-11-13 18:24:29,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:24:29,201 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 18:24:29,201 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:24:29,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 18:24:29,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-13 18:24:29,202 INFO L87 Difference]: Start difference. First operand 116816 states and 158020 transitions. Second operand has 6 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 3 states have call successors, (32), 4 states have call predecessors, (32), 2 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2021-11-13 18:24:31,265 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:24:33,381 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-13 18:24:35,516 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []