./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/openssl/s3_srvr.blast.01.i.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03000cb0-5f76-4d74-81d4-d6c7630f9dee/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03000cb0-5f76-4d74-81d4-d6c7630f9dee/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03000cb0-5f76-4d74-81d4-d6c7630f9dee/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03000cb0-5f76-4d74-81d4-d6c7630f9dee/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/openssl/s3_srvr.blast.01.i.cil-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03000cb0-5f76-4d74-81d4-d6c7630f9dee/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03000cb0-5f76-4d74-81d4-d6c7630f9dee/bin/uautomizer-DQz5hQGWxF --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 32bit --witnessprinter.graph.data.programhash a1fff1f2750aedbe7119b44ad3cdc8a2dbfa05ad8147a422ae9aeb0054d6e253 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 06:24:48,630 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 06:24:48,634 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 06:24:48,690 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 06:24:48,691 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 06:24:48,697 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 06:24:48,699 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 06:24:48,703 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 06:24:48,705 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 06:24:48,707 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 06:24:48,711 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 06:24:48,713 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 06:24:48,714 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 06:24:48,720 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 06:24:48,722 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 06:24:48,724 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 06:24:48,725 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 06:24:48,726 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 06:24:48,728 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 06:24:48,735 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 06:24:48,737 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 06:24:48,739 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 06:24:48,745 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 06:24:48,746 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 06:24:48,755 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 06:24:48,756 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 06:24:48,756 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 06:24:48,759 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 06:24:48,759 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 06:24:48,761 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 06:24:48,761 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 06:24:48,762 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 06:24:48,764 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 06:24:48,765 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 06:24:48,767 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 06:24:48,768 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 06:24:48,768 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 06:24:48,769 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 06:24:48,769 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 06:24:48,770 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 06:24:48,771 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 06:24:48,772 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03000cb0-5f76-4d74-81d4-d6c7630f9dee/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-20 06:24:48,816 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 06:24:48,816 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 06:24:48,817 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 06:24:48,817 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 06:24:48,823 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 06:24:48,823 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 06:24:48,824 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 06:24:48,824 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 06:24:48,824 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 06:24:48,825 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 06:24:48,826 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 06:24:48,826 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 06:24:48,826 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 06:24:48,826 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 06:24:48,827 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 06:24:48,827 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 06:24:48,827 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 06:24:48,827 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 06:24:48,828 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 06:24:48,828 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 06:24:48,828 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 06:24:48,828 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 06:24:48,829 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 06:24:48,829 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 06:24:48,829 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 06:24:48,829 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 06:24:48,830 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 06:24:48,830 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 06:24:48,830 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 06:24:48,830 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 06:24:48,830 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-20 06:24:48,831 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-20 06:24:48,831 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 06:24:48,831 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 06:24:48,831 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_03000cb0-5f76-4d74-81d4-d6c7630f9dee/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03000cb0-5f76-4d74-81d4-d6c7630f9dee/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a1fff1f2750aedbe7119b44ad3cdc8a2dbfa05ad8147a422ae9aeb0054d6e253 [2021-11-20 06:24:49,160 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 06:24:49,181 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 06:24:49,183 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 06:24:49,185 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 06:24:49,185 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 06:24:49,187 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03000cb0-5f76-4d74-81d4-d6c7630f9dee/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/openssl/s3_srvr.blast.01.i.cil-2.c [2021-11-20 06:24:49,263 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03000cb0-5f76-4d74-81d4-d6c7630f9dee/bin/uautomizer-DQz5hQGWxF/data/0bf5c18d1/b5c24d712a5c4550a9ac6014a1734d2c/FLAG0bc200b2f [2021-11-20 06:24:49,956 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 06:24:49,956 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03000cb0-5f76-4d74-81d4-d6c7630f9dee/sv-benchmarks/c/openssl/s3_srvr.blast.01.i.cil-2.c [2021-11-20 06:24:49,983 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03000cb0-5f76-4d74-81d4-d6c7630f9dee/bin/uautomizer-DQz5hQGWxF/data/0bf5c18d1/b5c24d712a5c4550a9ac6014a1734d2c/FLAG0bc200b2f [2021-11-20 06:24:50,156 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03000cb0-5f76-4d74-81d4-d6c7630f9dee/bin/uautomizer-DQz5hQGWxF/data/0bf5c18d1/b5c24d712a5c4550a9ac6014a1734d2c [2021-11-20 06:24:50,159 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 06:24:50,162 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 06:24:50,164 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 06:24:50,164 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 06:24:50,167 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 06:24:50,167 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:24:50" (1/1) ... [2021-11-20 06:24:50,169 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a42313a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:24:50, skipping insertion in model container [2021-11-20 06:24:50,170 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:24:50" (1/1) ... [2021-11-20 06:24:50,178 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 06:24:50,259 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 06:24:50,688 WARN L230 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_03000cb0-5f76-4d74-81d4-d6c7630f9dee/sv-benchmarks/c/openssl/s3_srvr.blast.01.i.cil-2.c[72913,72926] [2021-11-20 06:24:50,697 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:24:50,711 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 06:24:50,900 WARN L230 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_03000cb0-5f76-4d74-81d4-d6c7630f9dee/sv-benchmarks/c/openssl/s3_srvr.blast.01.i.cil-2.c[72913,72926] [2021-11-20 06:24:50,908 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:24:50,929 INFO L208 MainTranslator]: Completed translation [2021-11-20 06:24:50,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:24:50 WrapperNode [2021-11-20 06:24:50,930 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 06:24:50,931 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 06:24:50,932 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 06:24:50,932 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 06:24:50,940 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:24:50" (1/1) ... [2021-11-20 06:24:50,965 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:24:50" (1/1) ... [2021-11-20 06:24:51,021 INFO L137 Inliner]: procedures = 31, calls = 223, calls flagged for inlining = 7, calls inlined = 3, statements flattened = 788 [2021-11-20 06:24:51,021 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 06:24:51,022 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 06:24:51,022 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 06:24:51,023 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 06:24:51,033 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:24:50" (1/1) ... [2021-11-20 06:24:51,034 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:24:50" (1/1) ... [2021-11-20 06:24:51,047 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:24:50" (1/1) ... [2021-11-20 06:24:51,062 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:24:50" (1/1) ... [2021-11-20 06:24:51,122 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:24:50" (1/1) ... [2021-11-20 06:24:51,130 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:24:50" (1/1) ... [2021-11-20 06:24:51,133 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:24:50" (1/1) ... [2021-11-20 06:24:51,139 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 06:24:51,140 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 06:24:51,140 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 06:24:51,140 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 06:24:51,159 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:24:50" (1/1) ... [2021-11-20 06:24:51,166 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 06:24:51,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03000cb0-5f76-4d74-81d4-d6c7630f9dee/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:24:51,196 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03000cb0-5f76-4d74-81d4-d6c7630f9dee/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 06:24:51,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03000cb0-5f76-4d74-81d4-d6c7630f9dee/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 06:24:51,249 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 06:24:51,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-20 06:24:51,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 06:24:51,249 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 06:24:51,250 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-20 06:24:51,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 06:24:51,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-20 06:24:51,252 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 06:24:51,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 06:24:51,444 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 06:24:51,446 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 06:24:51,464 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-20 06:24:54,499 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2021-11-20 06:24:54,500 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2021-11-20 06:24:54,500 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 06:24:54,514 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 06:24:54,514 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-20 06:24:54,516 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:24:54 BoogieIcfgContainer [2021-11-20 06:24:54,516 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 06:24:54,518 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 06:24:54,518 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 06:24:54,521 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 06:24:54,522 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 06:24:50" (1/3) ... [2021-11-20 06:24:54,523 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d912b67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:24:54, skipping insertion in model container [2021-11-20 06:24:54,523 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:24:50" (2/3) ... [2021-11-20 06:24:54,523 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d912b67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:24:54, skipping insertion in model container [2021-11-20 06:24:54,524 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:24:54" (3/3) ... [2021-11-20 06:24:54,525 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.01.i.cil-2.c [2021-11-20 06:24:54,532 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 06:24:54,532 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 06:24:54,594 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 06:24:54,601 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 [2021-11-20 06:24:54,601 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-20 06:24:54,624 INFO L276 IsEmpty]: Start isEmpty. Operand has 147 states, 145 states have (on average 1.696551724137931) internal successors, (246), 146 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:24:54,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-20 06:24:54,636 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:24:54,636 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:24:54,637 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:24:54,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:24:54,643 INFO L85 PathProgramCache]: Analyzing trace with hash 1430116946, now seen corresponding path program 1 times [2021-11-20 06:24:54,653 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:24:54,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624557555] [2021-11-20 06:24:54,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:24:54,655 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:24:54,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:24:55,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:24:55,151 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:24:55,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624557555] [2021-11-20 06:24:55,152 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624557555] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:24:55,152 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:24:55,153 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 06:24:55,154 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955886874] [2021-11-20 06:24:55,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:24:55,162 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 06:24:55,163 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:24:55,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 06:24:55,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 06:24:55,210 INFO L87 Difference]: Start difference. First operand has 147 states, 145 states have (on average 1.696551724137931) internal successors, (246), 146 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:24:57,250 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:24:57,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:24:57,955 INFO L93 Difference]: Finished difference Result 319 states and 533 transitions. [2021-11-20 06:24:57,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 06:24:57,958 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2021-11-20 06:24:57,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:24:57,972 INFO L225 Difference]: With dead ends: 319 [2021-11-20 06:24:57,972 INFO L226 Difference]: Without dead ends: 162 [2021-11-20 06:24:57,976 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:24:57,980 INFO L933 BasicCegarLoop]: 216 mSDtfsCounter, 35 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2021-11-20 06:24:57,982 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 561 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 156 Invalid, 1 Unknown, 0 Unchecked, 2.7s Time] [2021-11-20 06:24:58,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2021-11-20 06:24:58,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 145. [2021-11-20 06:24:58,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 144 states have (on average 1.5416666666666667) internal successors, (222), 144 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:24:58,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 222 transitions. [2021-11-20 06:24:58,037 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 222 transitions. Word has length 47 [2021-11-20 06:24:58,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:24:58,037 INFO L470 AbstractCegarLoop]: Abstraction has 145 states and 222 transitions. [2021-11-20 06:24:58,038 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:24:58,038 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 222 transitions. [2021-11-20 06:24:58,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-20 06:24:58,041 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:24:58,042 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-20 06:24:58,042 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 06:24:58,042 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:24:58,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:24:58,044 INFO L85 PathProgramCache]: Analyzing trace with hash -458217405, now seen corresponding path program 1 times [2021-11-20 06:24:58,044 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:24:58,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477708405] [2021-11-20 06:24:58,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:24:58,045 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:24:58,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:24:58,207 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:24:58,207 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:24:58,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477708405] [2021-11-20 06:24:58,208 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477708405] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:24:58,208 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:24:58,209 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 06:24:58,209 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199217414] [2021-11-20 06:24:58,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:24:58,211 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 06:24:58,211 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:24:58,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 06:24:58,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 06:24:58,212 INFO L87 Difference]: Start difference. First operand 145 states and 222 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:25:00,235 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:25:00,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:25:00,701 INFO L93 Difference]: Finished difference Result 286 states and 432 transitions. [2021-11-20 06:25:00,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 06:25:00,702 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-11-20 06:25:00,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:25:00,704 INFO L225 Difference]: With dead ends: 286 [2021-11-20 06:25:00,704 INFO L226 Difference]: Without dead ends: 162 [2021-11-20 06:25:00,706 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:25:00,708 INFO L933 BasicCegarLoop]: 178 mSDtfsCounter, 24 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-11-20 06:25:00,709 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 450 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 148 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2021-11-20 06:25:00,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2021-11-20 06:25:00,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 145. [2021-11-20 06:25:00,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 144 states have (on average 1.5347222222222223) internal successors, (221), 144 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:25:00,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 221 transitions. [2021-11-20 06:25:00,725 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 221 transitions. Word has length 60 [2021-11-20 06:25:00,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:25:00,726 INFO L470 AbstractCegarLoop]: Abstraction has 145 states and 221 transitions. [2021-11-20 06:25:00,726 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:25:00,727 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 221 transitions. [2021-11-20 06:25:00,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-20 06:25:00,730 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:25:00,730 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-20 06:25:00,731 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 06:25:00,731 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:25:00,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:25:00,732 INFO L85 PathProgramCache]: Analyzing trace with hash -374937149, now seen corresponding path program 1 times [2021-11-20 06:25:00,732 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:25:00,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614085435] [2021-11-20 06:25:00,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:25:00,733 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:25:00,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:25:00,905 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:25:00,906 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:25:00,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614085435] [2021-11-20 06:25:00,906 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614085435] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:25:00,907 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:25:00,907 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 06:25:00,907 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344665525] [2021-11-20 06:25:00,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:25:00,909 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 06:25:00,909 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:25:00,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 06:25:00,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 06:25:00,912 INFO L87 Difference]: Start difference. First operand 145 states and 221 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:25:02,922 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:25:03,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:25:03,293 INFO L93 Difference]: Finished difference Result 285 states and 430 transitions. [2021-11-20 06:25:03,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 06:25:03,294 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2021-11-20 06:25:03,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:25:03,295 INFO L225 Difference]: With dead ends: 285 [2021-11-20 06:25:03,296 INFO L226 Difference]: Without dead ends: 161 [2021-11-20 06:25:03,297 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:25:03,298 INFO L933 BasicCegarLoop]: 179 mSDtfsCounter, 21 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 452 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-11-20 06:25:03,299 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 452 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 146 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2021-11-20 06:25:03,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2021-11-20 06:25:03,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 145. [2021-11-20 06:25:03,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 144 states have (on average 1.5277777777777777) internal successors, (220), 144 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:25:03,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 220 transitions. [2021-11-20 06:25:03,312 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 220 transitions. Word has length 61 [2021-11-20 06:25:03,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:25:03,312 INFO L470 AbstractCegarLoop]: Abstraction has 145 states and 220 transitions. [2021-11-20 06:25:03,313 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:25:03,313 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 220 transitions. [2021-11-20 06:25:03,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-20 06:25:03,316 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:25:03,316 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:25:03,316 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-20 06:25:03,317 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:25:03,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:25:03,318 INFO L85 PathProgramCache]: Analyzing trace with hash 470501247, now seen corresponding path program 1 times [2021-11-20 06:25:03,318 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:25:03,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058482577] [2021-11-20 06:25:03,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:25:03,318 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:25:03,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:25:03,425 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:25:03,425 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:25:03,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058482577] [2021-11-20 06:25:03,426 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058482577] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:25:03,426 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:25:03,426 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 06:25:03,426 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694598160] [2021-11-20 06:25:03,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:25:03,427 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 06:25:03,427 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:25:03,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 06:25:03,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 06:25:03,428 INFO L87 Difference]: Start difference. First operand 145 states and 220 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:25:05,438 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:25:05,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:25:05,804 INFO L93 Difference]: Finished difference Result 283 states and 427 transitions. [2021-11-20 06:25:05,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 06:25:05,804 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2021-11-20 06:25:05,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:25:05,805 INFO L225 Difference]: With dead ends: 283 [2021-11-20 06:25:05,806 INFO L226 Difference]: Without dead ends: 159 [2021-11-20 06:25:05,806 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:25:05,808 INFO L933 BasicCegarLoop]: 181 mSDtfsCounter, 21 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 456 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-20 06:25:05,808 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 456 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 142 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2021-11-20 06:25:05,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2021-11-20 06:25:05,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 145. [2021-11-20 06:25:05,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 144 states have (on average 1.5208333333333333) internal successors, (219), 144 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:25:05,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 219 transitions. [2021-11-20 06:25:05,823 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 219 transitions. Word has length 61 [2021-11-20 06:25:05,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:25:05,823 INFO L470 AbstractCegarLoop]: Abstraction has 145 states and 219 transitions. [2021-11-20 06:25:05,824 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:25:05,824 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 219 transitions. [2021-11-20 06:25:05,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-20 06:25:05,826 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:25:05,826 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-20 06:25:05,826 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-20 06:25:05,827 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:25:05,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:25:05,828 INFO L85 PathProgramCache]: Analyzing trace with hash 1212742610, now seen corresponding path program 1 times [2021-11-20 06:25:05,828 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:25:05,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635517450] [2021-11-20 06:25:05,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:25:05,829 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:25:05,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:25:05,901 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:25:05,901 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:25:05,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635517450] [2021-11-20 06:25:05,902 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635517450] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:25:05,902 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:25:05,902 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 06:25:05,902 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965493358] [2021-11-20 06:25:05,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:25:05,903 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 06:25:05,903 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:25:05,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 06:25:05,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 06:25:05,904 INFO L87 Difference]: Start difference. First operand 145 states and 219 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:25:07,913 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:25:08,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:25:08,268 INFO L93 Difference]: Finished difference Result 282 states and 425 transitions. [2021-11-20 06:25:08,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 06:25:08,269 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-11-20 06:25:08,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:25:08,271 INFO L225 Difference]: With dead ends: 282 [2021-11-20 06:25:08,271 INFO L226 Difference]: Without dead ends: 158 [2021-11-20 06:25:08,271 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:25:08,272 INFO L933 BasicCegarLoop]: 182 mSDtfsCounter, 26 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 458 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-20 06:25:08,273 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 458 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 140 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2021-11-20 06:25:08,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2021-11-20 06:25:08,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 145. [2021-11-20 06:25:08,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 144 states have (on average 1.5138888888888888) internal successors, (218), 144 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:25:08,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 218 transitions. [2021-11-20 06:25:08,300 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 218 transitions. Word has length 62 [2021-11-20 06:25:08,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:25:08,306 INFO L470 AbstractCegarLoop]: Abstraction has 145 states and 218 transitions. [2021-11-20 06:25:08,307 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:25:08,307 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 218 transitions. [2021-11-20 06:25:08,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-20 06:25:08,308 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:25:08,309 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-20 06:25:08,309 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-20 06:25:08,309 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:25:08,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:25:08,310 INFO L85 PathProgramCache]: Analyzing trace with hash 1421272766, now seen corresponding path program 1 times [2021-11-20 06:25:08,310 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:25:08,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078386340] [2021-11-20 06:25:08,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:25:08,311 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:25:08,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:25:08,418 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:25:08,419 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:25:08,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078386340] [2021-11-20 06:25:08,419 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078386340] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:25:08,419 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:25:08,419 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 06:25:08,420 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140107293] [2021-11-20 06:25:08,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:25:08,421 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 06:25:08,421 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:25:08,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 06:25:08,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 06:25:08,422 INFO L87 Difference]: Start difference. First operand 145 states and 218 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:25:10,431 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:25:10,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:25:10,811 INFO L93 Difference]: Finished difference Result 282 states and 424 transitions. [2021-11-20 06:25:10,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 06:25:10,812 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-11-20 06:25:10,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:25:10,814 INFO L225 Difference]: With dead ends: 282 [2021-11-20 06:25:10,814 INFO L226 Difference]: Without dead ends: 158 [2021-11-20 06:25:10,814 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:25:10,815 INFO L933 BasicCegarLoop]: 182 mSDtfsCounter, 24 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 458 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-11-20 06:25:10,816 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 458 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 140 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2021-11-20 06:25:10,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2021-11-20 06:25:10,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 145. [2021-11-20 06:25:10,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 144 states have (on average 1.5069444444444444) internal successors, (217), 144 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:25:10,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 217 transitions. [2021-11-20 06:25:10,834 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 217 transitions. Word has length 62 [2021-11-20 06:25:10,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:25:10,835 INFO L470 AbstractCegarLoop]: Abstraction has 145 states and 217 transitions. [2021-11-20 06:25:10,835 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:25:10,835 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 217 transitions. [2021-11-20 06:25:10,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-20 06:25:10,838 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:25:10,838 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:25:10,838 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-20 06:25:10,839 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:25:10,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:25:10,841 INFO L85 PathProgramCache]: Analyzing trace with hash 409565242, now seen corresponding path program 1 times [2021-11-20 06:25:10,841 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:25:10,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117220930] [2021-11-20 06:25:10,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:25:10,842 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:25:10,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:25:10,957 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:25:10,957 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:25:10,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117220930] [2021-11-20 06:25:10,959 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117220930] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:25:10,959 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:25:10,959 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 06:25:10,960 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116387941] [2021-11-20 06:25:10,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:25:10,960 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 06:25:10,961 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:25:10,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 06:25:10,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 06:25:10,962 INFO L87 Difference]: Start difference. First operand 145 states and 217 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:25:12,971 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:25:13,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:25:13,322 INFO L93 Difference]: Finished difference Result 282 states and 423 transitions. [2021-11-20 06:25:13,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 06:25:13,323 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2021-11-20 06:25:13,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:25:13,324 INFO L225 Difference]: With dead ends: 282 [2021-11-20 06:25:13,324 INFO L226 Difference]: Without dead ends: 158 [2021-11-20 06:25:13,325 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:25:13,326 INFO L933 BasicCegarLoop]: 182 mSDtfsCounter, 22 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 458 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-20 06:25:13,326 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 458 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 140 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2021-11-20 06:25:13,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2021-11-20 06:25:13,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 145. [2021-11-20 06:25:13,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 144 states have (on average 1.5) internal successors, (216), 144 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:25:13,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 216 transitions. [2021-11-20 06:25:13,334 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 216 transitions. Word has length 63 [2021-11-20 06:25:13,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:25:13,334 INFO L470 AbstractCegarLoop]: Abstraction has 145 states and 216 transitions. [2021-11-20 06:25:13,334 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:25:13,335 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 216 transitions. [2021-11-20 06:25:13,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-20 06:25:13,336 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:25:13,336 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-20 06:25:13,336 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-20 06:25:13,337 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:25:13,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:25:13,337 INFO L85 PathProgramCache]: Analyzing trace with hash -682574659, now seen corresponding path program 1 times [2021-11-20 06:25:13,338 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:25:13,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466301342] [2021-11-20 06:25:13,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:25:13,338 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:25:13,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:25:13,406 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:25:13,406 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:25:13,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466301342] [2021-11-20 06:25:13,407 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466301342] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:25:13,407 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:25:13,407 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 06:25:13,407 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991965859] [2021-11-20 06:25:13,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:25:13,408 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 06:25:13,408 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:25:13,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 06:25:13,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 06:25:13,409 INFO L87 Difference]: Start difference. First operand 145 states and 216 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:25:15,418 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:25:15,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:25:15,788 INFO L93 Difference]: Finished difference Result 312 states and 471 transitions. [2021-11-20 06:25:15,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 06:25:15,789 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2021-11-20 06:25:15,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:25:15,791 INFO L225 Difference]: With dead ends: 312 [2021-11-20 06:25:15,791 INFO L226 Difference]: Without dead ends: 188 [2021-11-20 06:25:15,791 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:25:15,792 INFO L933 BasicCegarLoop]: 200 mSDtfsCounter, 34 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 500 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-11-20 06:25:15,793 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 500 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 169 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2021-11-20 06:25:15,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2021-11-20 06:25:15,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 167. [2021-11-20 06:25:15,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 166 states have (on average 1.5301204819277108) internal successors, (254), 166 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:25:15,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 254 transitions. [2021-11-20 06:25:15,801 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 254 transitions. Word has length 64 [2021-11-20 06:25:15,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:25:15,802 INFO L470 AbstractCegarLoop]: Abstraction has 167 states and 254 transitions. [2021-11-20 06:25:15,803 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:25:15,803 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 254 transitions. [2021-11-20 06:25:15,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-20 06:25:15,804 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:25:15,804 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:25:15,805 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-20 06:25:15,805 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:25:15,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:25:15,806 INFO L85 PathProgramCache]: Analyzing trace with hash -2091297575, now seen corresponding path program 1 times [2021-11-20 06:25:15,806 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:25:15,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945192411] [2021-11-20 06:25:15,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:25:15,806 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:25:15,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:25:15,926 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:25:15,926 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:25:15,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945192411] [2021-11-20 06:25:15,926 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945192411] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:25:15,926 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:25:15,927 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 06:25:15,927 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585408355] [2021-11-20 06:25:15,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:25:15,927 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 06:25:15,927 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:25:15,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 06:25:15,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 06:25:15,928 INFO L87 Difference]: Start difference. First operand 167 states and 254 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:25:17,937 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:25:18,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:25:18,246 INFO L93 Difference]: Finished difference Result 326 states and 498 transitions. [2021-11-20 06:25:18,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 06:25:18,247 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2021-11-20 06:25:18,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:25:18,249 INFO L225 Difference]: With dead ends: 326 [2021-11-20 06:25:18,249 INFO L226 Difference]: Without dead ends: 180 [2021-11-20 06:25:18,250 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:25:18,250 INFO L933 BasicCegarLoop]: 182 mSDtfsCounter, 20 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 458 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-20 06:25:18,251 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 458 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 140 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2021-11-20 06:25:18,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2021-11-20 06:25:18,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 167. [2021-11-20 06:25:18,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 166 states have (on average 1.5240963855421688) internal successors, (253), 166 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:25:18,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 253 transitions. [2021-11-20 06:25:18,258 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 253 transitions. Word has length 64 [2021-11-20 06:25:18,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:25:18,259 INFO L470 AbstractCegarLoop]: Abstraction has 167 states and 253 transitions. [2021-11-20 06:25:18,259 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:25:18,259 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 253 transitions. [2021-11-20 06:25:18,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-20 06:25:18,260 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:25:18,260 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-20 06:25:18,261 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-20 06:25:18,261 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:25:18,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:25:18,262 INFO L85 PathProgramCache]: Analyzing trace with hash 783633077, now seen corresponding path program 1 times [2021-11-20 06:25:18,262 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:25:18,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310008823] [2021-11-20 06:25:18,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:25:18,262 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:25:18,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:25:18,331 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:25:18,332 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:25:18,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310008823] [2021-11-20 06:25:18,332 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310008823] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:25:18,332 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:25:18,332 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 06:25:18,333 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938302520] [2021-11-20 06:25:18,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:25:18,333 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 06:25:18,333 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:25:18,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 06:25:18,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 06:25:18,334 INFO L87 Difference]: Start difference. First operand 167 states and 253 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:25:20,343 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:25:20,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:25:20,655 INFO L93 Difference]: Finished difference Result 316 states and 484 transitions. [2021-11-20 06:25:20,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 06:25:20,655 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2021-11-20 06:25:20,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:25:20,657 INFO L225 Difference]: With dead ends: 316 [2021-11-20 06:25:20,657 INFO L226 Difference]: Without dead ends: 170 [2021-11-20 06:25:20,658 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:25:20,658 INFO L933 BasicCegarLoop]: 189 mSDtfsCounter, 11 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-20 06:25:20,659 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 472 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 126 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2021-11-20 06:25:20,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2021-11-20 06:25:20,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 167. [2021-11-20 06:25:20,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 166 states have (on average 1.5180722891566265) internal successors, (252), 166 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:25:20,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 252 transitions. [2021-11-20 06:25:20,667 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 252 transitions. Word has length 65 [2021-11-20 06:25:20,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:25:20,667 INFO L470 AbstractCegarLoop]: Abstraction has 167 states and 252 transitions. [2021-11-20 06:25:20,667 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:25:20,668 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 252 transitions. [2021-11-20 06:25:20,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-20 06:25:20,669 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:25:20,669 INFO L514 BasicCegarLoop]: trace histogram [3, 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] [2021-11-20 06:25:20,669 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-20 06:25:20,670 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:25:20,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:25:20,670 INFO L85 PathProgramCache]: Analyzing trace with hash 59755448, now seen corresponding path program 1 times [2021-11-20 06:25:20,670 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:25:20,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88609872] [2021-11-20 06:25:20,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:25:20,671 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:25:20,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:25:20,755 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:25:20,755 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:25:20,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88609872] [2021-11-20 06:25:20,756 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88609872] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:25:20,756 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:25:20,756 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 06:25:20,756 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288353954] [2021-11-20 06:25:20,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:25:20,757 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 06:25:20,757 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:25:20,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 06:25:20,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 06:25:20,758 INFO L87 Difference]: Start difference. First operand 167 states and 252 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:25:22,767 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:25:23,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:25:23,108 INFO L93 Difference]: Finished difference Result 334 states and 506 transitions. [2021-11-20 06:25:23,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 06:25:23,109 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2021-11-20 06:25:23,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:25:23,110 INFO L225 Difference]: With dead ends: 334 [2021-11-20 06:25:23,110 INFO L226 Difference]: Without dead ends: 188 [2021-11-20 06:25:23,111 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:25:23,112 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 39 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-20 06:25:23,112 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 470 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 166 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2021-11-20 06:25:23,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2021-11-20 06:25:23,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 167. [2021-11-20 06:25:23,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 166 states have (on average 1.5120481927710843) internal successors, (251), 166 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:25:23,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 251 transitions. [2021-11-20 06:25:23,119 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 251 transitions. Word has length 77 [2021-11-20 06:25:23,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:25:23,120 INFO L470 AbstractCegarLoop]: Abstraction has 167 states and 251 transitions. [2021-11-20 06:25:23,120 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:25:23,120 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 251 transitions. [2021-11-20 06:25:23,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-20 06:25:23,121 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:25:23,122 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:25:23,122 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-20 06:25:23,122 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:25:23,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:25:23,123 INFO L85 PathProgramCache]: Analyzing trace with hash -1497647890, now seen corresponding path program 1 times [2021-11-20 06:25:23,123 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:25:23,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220325876] [2021-11-20 06:25:23,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:25:23,123 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:25:23,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:25:23,210 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:25:23,210 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:25:23,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220325876] [2021-11-20 06:25:23,210 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220325876] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:25:23,210 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:25:23,211 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 06:25:23,211 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016385696] [2021-11-20 06:25:23,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:25:23,211 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 06:25:23,212 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:25:23,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 06:25:23,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 06:25:23,212 INFO L87 Difference]: Start difference. First operand 167 states and 251 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:25:25,221 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:25:25,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:25:25,535 INFO L93 Difference]: Finished difference Result 333 states and 503 transitions. [2021-11-20 06:25:25,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 06:25:25,536 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2021-11-20 06:25:25,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:25:25,537 INFO L225 Difference]: With dead ends: 333 [2021-11-20 06:25:25,537 INFO L226 Difference]: Without dead ends: 187 [2021-11-20 06:25:25,538 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:25:25,539 INFO L933 BasicCegarLoop]: 187 mSDtfsCounter, 36 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-20 06:25:25,539 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 472 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 164 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2021-11-20 06:25:25,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2021-11-20 06:25:25,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 167. [2021-11-20 06:25:25,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 166 states have (on average 1.5060240963855422) internal successors, (250), 166 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:25:25,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 250 transitions. [2021-11-20 06:25:25,546 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 250 transitions. Word has length 78 [2021-11-20 06:25:25,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:25:25,547 INFO L470 AbstractCegarLoop]: Abstraction has 167 states and 250 transitions. [2021-11-20 06:25:25,547 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:25:25,547 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 250 transitions. [2021-11-20 06:25:25,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-20 06:25:25,548 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:25:25,549 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-11-20 06:25:25,549 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-20 06:25:25,552 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:25:25,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:25:25,554 INFO L85 PathProgramCache]: Analyzing trace with hash -652209494, now seen corresponding path program 1 times [2021-11-20 06:25:25,554 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:25:25,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211842446] [2021-11-20 06:25:25,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:25:25,555 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:25:25,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:25:25,629 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:25:25,630 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:25:25,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211842446] [2021-11-20 06:25:25,630 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211842446] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:25:25,630 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:25:25,630 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 06:25:25,631 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678556633] [2021-11-20 06:25:25,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:25:25,631 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 06:25:25,631 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:25:25,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 06:25:25,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 06:25:25,632 INFO L87 Difference]: Start difference. First operand 167 states and 250 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:25:27,643 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:25:27,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:25:27,941 INFO L93 Difference]: Finished difference Result 331 states and 499 transitions. [2021-11-20 06:25:27,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 06:25:27,942 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2021-11-20 06:25:27,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:25:27,944 INFO L225 Difference]: With dead ends: 331 [2021-11-20 06:25:27,944 INFO L226 Difference]: Without dead ends: 185 [2021-11-20 06:25:27,945 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:25:27,946 INFO L933 BasicCegarLoop]: 189 mSDtfsCounter, 36 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 476 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-20 06:25:27,946 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 476 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 160 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2021-11-20 06:25:27,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2021-11-20 06:25:27,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 167. [2021-11-20 06:25:27,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 166 states have (on average 1.5) internal successors, (249), 166 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:25:27,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 249 transitions. [2021-11-20 06:25:27,954 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 249 transitions. Word has length 78 [2021-11-20 06:25:27,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:25:27,954 INFO L470 AbstractCegarLoop]: Abstraction has 167 states and 249 transitions. [2021-11-20 06:25:27,955 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:25:27,955 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 249 transitions. [2021-11-20 06:25:27,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-20 06:25:27,956 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:25:27,956 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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] [2021-11-20 06:25:27,956 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-20 06:25:27,957 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:25:27,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:25:27,957 INFO L85 PathProgramCache]: Analyzing trace with hash 768448007, now seen corresponding path program 1 times [2021-11-20 06:25:27,958 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:25:27,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137060737] [2021-11-20 06:25:27,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:25:27,958 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:25:27,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:25:28,020 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:25:28,021 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:25:28,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137060737] [2021-11-20 06:25:28,021 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137060737] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:25:28,021 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:25:28,021 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 06:25:28,022 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835007698] [2021-11-20 06:25:28,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:25:28,022 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 06:25:28,022 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:25:28,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 06:25:28,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 06:25:28,023 INFO L87 Difference]: Start difference. First operand 167 states and 249 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:25:30,035 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:25:30,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:25:30,368 INFO L93 Difference]: Finished difference Result 330 states and 496 transitions. [2021-11-20 06:25:30,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 06:25:30,369 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2021-11-20 06:25:30,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:25:30,371 INFO L225 Difference]: With dead ends: 330 [2021-11-20 06:25:30,371 INFO L226 Difference]: Without dead ends: 184 [2021-11-20 06:25:30,371 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:25:30,372 INFO L933 BasicCegarLoop]: 190 mSDtfsCounter, 41 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-20 06:25:30,372 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 478 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 158 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2021-11-20 06:25:30,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2021-11-20 06:25:30,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 167. [2021-11-20 06:25:30,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 166 states have (on average 1.4939759036144578) internal successors, (248), 166 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:25:30,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 248 transitions. [2021-11-20 06:25:30,383 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 248 transitions. Word has length 79 [2021-11-20 06:25:30,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:25:30,383 INFO L470 AbstractCegarLoop]: Abstraction has 167 states and 248 transitions. [2021-11-20 06:25:30,383 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:25:30,384 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 248 transitions. [2021-11-20 06:25:30,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-20 06:25:30,385 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:25:30,385 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2021-11-20 06:25:30,385 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-20 06:25:30,385 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:25:30,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:25:30,386 INFO L85 PathProgramCache]: Analyzing trace with hash 976978163, now seen corresponding path program 1 times [2021-11-20 06:25:30,386 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:25:30,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230117931] [2021-11-20 06:25:30,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:25:30,386 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:25:30,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:25:30,449 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:25:30,449 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:25:30,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230117931] [2021-11-20 06:25:30,450 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230117931] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:25:30,450 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:25:30,450 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 06:25:30,450 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426230887] [2021-11-20 06:25:30,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:25:30,451 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 06:25:30,451 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:25:30,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 06:25:30,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 06:25:30,452 INFO L87 Difference]: Start difference. First operand 167 states and 248 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:25:32,461 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:25:32,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:25:32,743 INFO L93 Difference]: Finished difference Result 330 states and 494 transitions. [2021-11-20 06:25:32,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 06:25:32,744 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2021-11-20 06:25:32,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:25:32,745 INFO L225 Difference]: With dead ends: 330 [2021-11-20 06:25:32,745 INFO L226 Difference]: Without dead ends: 184 [2021-11-20 06:25:32,746 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:25:32,747 INFO L933 BasicCegarLoop]: 190 mSDtfsCounter, 39 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-20 06:25:32,747 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 478 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 158 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2021-11-20 06:25:32,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2021-11-20 06:25:32,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 167. [2021-11-20 06:25:32,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 166 states have (on average 1.4879518072289157) internal successors, (247), 166 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:25:32,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 247 transitions. [2021-11-20 06:25:32,754 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 247 transitions. Word has length 79 [2021-11-20 06:25:32,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:25:32,754 INFO L470 AbstractCegarLoop]: Abstraction has 167 states and 247 transitions. [2021-11-20 06:25:32,755 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:25:32,755 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 247 transitions. [2021-11-20 06:25:32,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-20 06:25:32,756 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:25:32,756 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2021-11-20 06:25:32,756 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-20 06:25:32,756 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:25:32,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:25:32,757 INFO L85 PathProgramCache]: Analyzing trace with hash -478665563, now seen corresponding path program 1 times [2021-11-20 06:25:32,757 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:25:32,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439988028] [2021-11-20 06:25:32,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:25:32,757 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:25:32,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:25:32,815 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:25:32,815 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:25:32,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439988028] [2021-11-20 06:25:32,816 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439988028] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:25:32,816 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:25:32,816 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 06:25:32,816 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581493819] [2021-11-20 06:25:32,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:25:32,817 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 06:25:32,817 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:25:32,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 06:25:32,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 06:25:32,817 INFO L87 Difference]: Start difference. First operand 167 states and 247 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:25:34,826 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:25:35,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:25:35,109 INFO L93 Difference]: Finished difference Result 330 states and 492 transitions. [2021-11-20 06:25:35,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 06:25:35,110 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2021-11-20 06:25:35,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:25:35,112 INFO L225 Difference]: With dead ends: 330 [2021-11-20 06:25:35,112 INFO L226 Difference]: Without dead ends: 184 [2021-11-20 06:25:35,112 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:25:35,113 INFO L933 BasicCegarLoop]: 190 mSDtfsCounter, 37 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-20 06:25:35,114 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 478 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 158 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2021-11-20 06:25:35,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2021-11-20 06:25:35,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 167. [2021-11-20 06:25:35,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 166 states have (on average 1.4819277108433735) internal successors, (246), 166 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:25:35,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 246 transitions. [2021-11-20 06:25:35,121 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 246 transitions. Word has length 80 [2021-11-20 06:25:35,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:25:35,121 INFO L470 AbstractCegarLoop]: Abstraction has 167 states and 246 transitions. [2021-11-20 06:25:35,122 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:25:35,122 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 246 transitions. [2021-11-20 06:25:35,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-20 06:25:35,123 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:25:35,123 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2021-11-20 06:25:35,123 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-20 06:25:35,124 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:25:35,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:25:35,124 INFO L85 PathProgramCache]: Analyzing trace with hash 438318542, now seen corresponding path program 1 times [2021-11-20 06:25:35,125 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:25:35,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340215614] [2021-11-20 06:25:35,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:25:35,125 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:25:35,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:25:35,217 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:25:35,218 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:25:35,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340215614] [2021-11-20 06:25:35,218 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340215614] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:25:35,218 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:25:35,218 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 06:25:35,219 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092419538] [2021-11-20 06:25:35,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:25:35,219 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 06:25:35,220 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:25:35,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 06:25:35,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 06:25:35,221 INFO L87 Difference]: Start difference. First operand 167 states and 246 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:25:37,230 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:25:37,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:25:37,538 INFO L93 Difference]: Finished difference Result 330 states and 490 transitions. [2021-11-20 06:25:37,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 06:25:37,539 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2021-11-20 06:25:37,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:25:37,540 INFO L225 Difference]: With dead ends: 330 [2021-11-20 06:25:37,540 INFO L226 Difference]: Without dead ends: 184 [2021-11-20 06:25:37,541 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:25:37,542 INFO L933 BasicCegarLoop]: 190 mSDtfsCounter, 35 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-20 06:25:37,542 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 478 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 158 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2021-11-20 06:25:37,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2021-11-20 06:25:37,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 167. [2021-11-20 06:25:37,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 166 states have (on average 1.4759036144578312) internal successors, (245), 166 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:25:37,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 245 transitions. [2021-11-20 06:25:37,550 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 245 transitions. Word has length 81 [2021-11-20 06:25:37,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:25:37,550 INFO L470 AbstractCegarLoop]: Abstraction has 167 states and 245 transitions. [2021-11-20 06:25:37,550 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:25:37,551 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 245 transitions. [2021-11-20 06:25:37,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-20 06:25:37,552 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:25:37,552 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-20 06:25:37,552 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-20 06:25:37,553 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:25:37,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:25:37,553 INFO L85 PathProgramCache]: Analyzing trace with hash 1892321376, now seen corresponding path program 1 times [2021-11-20 06:25:37,553 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:25:37,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752118453] [2021-11-20 06:25:37,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:25:37,554 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:25:37,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:25:37,623 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:25:37,623 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:25:37,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752118453] [2021-11-20 06:25:37,624 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752118453] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:25:37,624 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:25:37,624 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 06:25:37,625 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30856482] [2021-11-20 06:25:37,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:25:37,625 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 06:25:37,625 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:25:37,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 06:25:37,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 06:25:37,626 INFO L87 Difference]: Start difference. First operand 167 states and 245 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:25:39,637 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:25:39,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:25:39,887 INFO L93 Difference]: Finished difference Result 320 states and 475 transitions. [2021-11-20 06:25:39,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 06:25:39,888 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-11-20 06:25:39,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:25:39,889 INFO L225 Difference]: With dead ends: 320 [2021-11-20 06:25:39,889 INFO L226 Difference]: Without dead ends: 174 [2021-11-20 06:25:39,890 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:25:39,891 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 26 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 492 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-11-20 06:25:39,891 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 492 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 144 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2021-11-20 06:25:39,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2021-11-20 06:25:39,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 167. [2021-11-20 06:25:39,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 166 states have (on average 1.4698795180722892) internal successors, (244), 166 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:25:39,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 244 transitions. [2021-11-20 06:25:39,897 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 244 transitions. Word has length 82 [2021-11-20 06:25:39,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:25:39,897 INFO L470 AbstractCegarLoop]: Abstraction has 167 states and 244 transitions. [2021-11-20 06:25:39,898 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:25:39,898 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 244 transitions. [2021-11-20 06:25:39,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-20 06:25:39,899 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:25:39,900 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2021-11-20 06:25:39,900 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-20 06:25:39,900 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:25:39,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:25:39,901 INFO L85 PathProgramCache]: Analyzing trace with hash 485035231, now seen corresponding path program 1 times [2021-11-20 06:25:39,901 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:25:39,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427436298] [2021-11-20 06:25:39,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:25:39,902 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:25:39,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:25:39,975 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-20 06:25:39,975 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:25:39,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427436298] [2021-11-20 06:25:39,976 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427436298] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:25:39,976 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:25:39,976 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 06:25:39,976 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209213802] [2021-11-20 06:25:39,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:25:39,977 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 06:25:39,977 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:25:39,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 06:25:39,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 06:25:39,978 INFO L87 Difference]: Start difference. First operand 167 states and 244 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:25:41,987 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:25:42,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:25:42,312 INFO L93 Difference]: Finished difference Result 363 states and 539 transitions. [2021-11-20 06:25:42,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 06:25:42,313 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2021-11-20 06:25:42,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:25:42,315 INFO L225 Difference]: With dead ends: 363 [2021-11-20 06:25:42,315 INFO L226 Difference]: Without dead ends: 217 [2021-11-20 06:25:42,315 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:25:42,316 INFO L933 BasicCegarLoop]: 205 mSDtfsCounter, 40 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-20 06:25:42,317 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 510 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 179 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2021-11-20 06:25:42,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2021-11-20 06:25:42,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 192. [2021-11-20 06:25:42,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 191 states have (on average 1.5026178010471205) internal successors, (287), 191 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:25:42,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 287 transitions. [2021-11-20 06:25:42,324 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 287 transitions. Word has length 86 [2021-11-20 06:25:42,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:25:42,325 INFO L470 AbstractCegarLoop]: Abstraction has 192 states and 287 transitions. [2021-11-20 06:25:42,325 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:25:42,325 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 287 transitions. [2021-11-20 06:25:42,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-20 06:25:42,326 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:25:42,327 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2021-11-20 06:25:42,327 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-20 06:25:42,327 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:25:42,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:25:42,328 INFO L85 PathProgramCache]: Analyzing trace with hash 1382428509, now seen corresponding path program 1 times [2021-11-20 06:25:42,328 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:25:42,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921419218] [2021-11-20 06:25:42,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:25:42,329 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:25:42,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:25:42,428 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-20 06:25:42,428 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:25:42,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921419218] [2021-11-20 06:25:42,429 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921419218] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:25:42,429 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:25:42,429 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 06:25:42,429 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630534590] [2021-11-20 06:25:42,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:25:42,430 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 06:25:42,430 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:25:42,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 06:25:42,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 06:25:42,431 INFO L87 Difference]: Start difference. First operand 192 states and 287 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:25:44,440 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:25:44,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:25:44,872 INFO L93 Difference]: Finished difference Result 459 states and 698 transitions. [2021-11-20 06:25:44,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 06:25:44,872 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2021-11-20 06:25:44,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:25:44,875 INFO L225 Difference]: With dead ends: 459 [2021-11-20 06:25:44,875 INFO L226 Difference]: Without dead ends: 288 [2021-11-20 06:25:44,876 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:25:44,877 INFO L933 BasicCegarLoop]: 199 mSDtfsCounter, 79 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 14 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 498 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-11-20 06:25:44,877 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [79 Valid, 498 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 267 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2021-11-20 06:25:44,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2021-11-20 06:25:44,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 234. [2021-11-20 06:25:44,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 233 states have (on average 1.5622317596566524) internal successors, (364), 233 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:25:44,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 364 transitions. [2021-11-20 06:25:44,887 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 364 transitions. Word has length 86 [2021-11-20 06:25:44,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:25:44,887 INFO L470 AbstractCegarLoop]: Abstraction has 234 states and 364 transitions. [2021-11-20 06:25:44,888 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:25:44,888 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 364 transitions. [2021-11-20 06:25:44,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-11-20 06:25:44,889 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:25:44,890 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2021-11-20 06:25:44,890 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-20 06:25:44,890 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:25:44,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:25:44,891 INFO L85 PathProgramCache]: Analyzing trace with hash -479313194, now seen corresponding path program 1 times [2021-11-20 06:25:44,891 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:25:44,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409042664] [2021-11-20 06:25:44,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:25:44,892 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:25:44,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:25:44,964 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-20 06:25:44,964 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:25:44,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409042664] [2021-11-20 06:25:44,965 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409042664] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:25:44,965 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:25:44,965 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 06:25:44,965 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156724255] [2021-11-20 06:25:44,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:25:44,966 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 06:25:44,966 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:25:44,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 06:25:44,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 06:25:44,967 INFO L87 Difference]: Start difference. First operand 234 states and 364 transitions. Second operand has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:25:46,976 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:25:47,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:25:47,317 INFO L93 Difference]: Finished difference Result 472 states and 735 transitions. [2021-11-20 06:25:47,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 06:25:47,317 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2021-11-20 06:25:47,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:25:47,319 INFO L225 Difference]: With dead ends: 472 [2021-11-20 06:25:47,320 INFO L226 Difference]: Without dead ends: 259 [2021-11-20 06:25:47,320 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:25:47,321 INFO L933 BasicCegarLoop]: 208 mSDtfsCounter, 47 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 514 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-20 06:25:47,322 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 514 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 179 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2021-11-20 06:25:47,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2021-11-20 06:25:47,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 234. [2021-11-20 06:25:47,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 233 states have (on average 1.55793991416309) internal successors, (363), 233 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:25:47,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 363 transitions. [2021-11-20 06:25:47,331 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 363 transitions. Word has length 99 [2021-11-20 06:25:47,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:25:47,331 INFO L470 AbstractCegarLoop]: Abstraction has 234 states and 363 transitions. [2021-11-20 06:25:47,332 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:25:47,332 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 363 transitions. [2021-11-20 06:25:47,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-11-20 06:25:47,333 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:25:47,334 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2021-11-20 06:25:47,334 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-20 06:25:47,334 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:25:47,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:25:47,335 INFO L85 PathProgramCache]: Analyzing trace with hash -519987944, now seen corresponding path program 1 times [2021-11-20 06:25:47,335 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:25:47,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436528053] [2021-11-20 06:25:47,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:25:47,335 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:25:47,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:25:47,436 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-20 06:25:47,436 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:25:47,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436528053] [2021-11-20 06:25:47,437 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436528053] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:25:47,437 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:25:47,437 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 06:25:47,437 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855403947] [2021-11-20 06:25:47,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:25:47,438 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 06:25:47,438 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:25:47,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 06:25:47,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 06:25:47,439 INFO L87 Difference]: Start difference. First operand 234 states and 363 transitions. Second operand has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:25:49,449 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:25:49,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:25:49,851 INFO L93 Difference]: Finished difference Result 501 states and 772 transitions. [2021-11-20 06:25:49,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 06:25:49,852 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2021-11-20 06:25:49,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:25:49,853 INFO L225 Difference]: With dead ends: 501 [2021-11-20 06:25:49,853 INFO L226 Difference]: Without dead ends: 288 [2021-11-20 06:25:49,854 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:25:49,855 INFO L933 BasicCegarLoop]: 199 mSDtfsCounter, 103 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 14 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 496 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-11-20 06:25:49,855 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 496 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 266 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2021-11-20 06:25:49,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2021-11-20 06:25:49,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 234. [2021-11-20 06:25:49,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 233 states have (on average 1.553648068669528) internal successors, (362), 233 states have internal predecessors, (362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:25:49,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 362 transitions. [2021-11-20 06:25:49,864 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 362 transitions. Word has length 99 [2021-11-20 06:25:49,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:25:49,864 INFO L470 AbstractCegarLoop]: Abstraction has 234 states and 362 transitions. [2021-11-20 06:25:49,864 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:25:49,865 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 362 transitions. [2021-11-20 06:25:49,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-11-20 06:25:49,866 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:25:49,866 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2021-11-20 06:25:49,867 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-20 06:25:49,867 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:25:49,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:25:49,868 INFO L85 PathProgramCache]: Analyzing trace with hash -1028906608, now seen corresponding path program 1 times [2021-11-20 06:25:49,868 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:25:49,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601952032] [2021-11-20 06:25:49,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:25:49,868 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:25:49,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:25:49,945 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-20 06:25:49,945 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:25:49,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601952032] [2021-11-20 06:25:49,946 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601952032] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:25:49,946 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:25:49,946 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 06:25:49,947 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531273573] [2021-11-20 06:25:49,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:25:49,947 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 06:25:49,947 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:25:49,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 06:25:49,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 06:25:49,948 INFO L87 Difference]: Start difference. First operand 234 states and 362 transitions. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:25:51,960 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:25:52,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:25:52,241 INFO L93 Difference]: Finished difference Result 471 states and 730 transitions. [2021-11-20 06:25:52,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 06:25:52,241 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2021-11-20 06:25:52,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:25:52,243 INFO L225 Difference]: With dead ends: 471 [2021-11-20 06:25:52,243 INFO L226 Difference]: Without dead ends: 258 [2021-11-20 06:25:52,244 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:25:52,245 INFO L933 BasicCegarLoop]: 207 mSDtfsCounter, 44 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 512 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-20 06:25:52,245 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 512 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 176 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2021-11-20 06:25:52,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2021-11-20 06:25:52,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 234. [2021-11-20 06:25:52,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 233 states have (on average 1.5493562231759657) internal successors, (361), 233 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:25:52,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 361 transitions. [2021-11-20 06:25:52,254 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 361 transitions. Word has length 100 [2021-11-20 06:25:52,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:25:52,254 INFO L470 AbstractCegarLoop]: Abstraction has 234 states and 361 transitions. [2021-11-20 06:25:52,255 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:25:52,255 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 361 transitions. [2021-11-20 06:25:52,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-11-20 06:25:52,256 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:25:52,257 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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] [2021-11-20 06:25:52,257 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-20 06:25:52,257 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:25:52,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:25:52,258 INFO L85 PathProgramCache]: Analyzing trace with hash -183468212, now seen corresponding path program 1 times [2021-11-20 06:25:52,258 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:25:52,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880954410] [2021-11-20 06:25:52,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:25:52,259 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:25:52,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:25:52,332 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-20 06:25:52,332 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:25:52,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880954410] [2021-11-20 06:25:52,333 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880954410] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:25:52,333 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:25:52,333 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 06:25:52,333 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748268001] [2021-11-20 06:25:52,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:25:52,334 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 06:25:52,334 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:25:52,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 06:25:52,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 06:25:52,335 INFO L87 Difference]: Start difference. First operand 234 states and 361 transitions. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:25:54,344 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:25:54,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:25:54,650 INFO L93 Difference]: Finished difference Result 469 states and 726 transitions. [2021-11-20 06:25:54,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 06:25:54,651 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2021-11-20 06:25:54,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:25:54,653 INFO L225 Difference]: With dead ends: 469 [2021-11-20 06:25:54,653 INFO L226 Difference]: Without dead ends: 256 [2021-11-20 06:25:54,654 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:25:54,654 INFO L933 BasicCegarLoop]: 209 mSDtfsCounter, 44 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 516 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-20 06:25:54,655 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 516 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 172 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2021-11-20 06:25:54,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2021-11-20 06:25:54,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 234. [2021-11-20 06:25:54,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 233 states have (on average 1.5450643776824033) internal successors, (360), 233 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:25:54,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 360 transitions. [2021-11-20 06:25:54,662 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 360 transitions. Word has length 100 [2021-11-20 06:25:54,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:25:54,663 INFO L470 AbstractCegarLoop]: Abstraction has 234 states and 360 transitions. [2021-11-20 06:25:54,663 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:25:54,663 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 360 transitions. [2021-11-20 06:25:54,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-11-20 06:25:54,665 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:25:54,665 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2021-11-20 06:25:54,665 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-11-20 06:25:54,665 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:25:54,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:25:54,666 INFO L85 PathProgramCache]: Analyzing trace with hash 2005143438, now seen corresponding path program 1 times [2021-11-20 06:25:54,666 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:25:54,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491035391] [2021-11-20 06:25:54,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:25:54,667 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:25:54,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:25:54,730 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-20 06:25:54,730 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:25:54,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491035391] [2021-11-20 06:25:54,730 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491035391] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:25:54,731 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:25:54,731 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 06:25:54,731 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855433081] [2021-11-20 06:25:54,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:25:54,732 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 06:25:54,732 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:25:54,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 06:25:54,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 06:25:54,733 INFO L87 Difference]: Start difference. First operand 234 states and 360 transitions. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:25:56,741 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:25:57,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:25:57,118 INFO L93 Difference]: Finished difference Result 500 states and 765 transitions. [2021-11-20 06:25:57,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 06:25:57,119 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2021-11-20 06:25:57,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:25:57,121 INFO L225 Difference]: With dead ends: 500 [2021-11-20 06:25:57,121 INFO L226 Difference]: Without dead ends: 287 [2021-11-20 06:25:57,122 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:25:57,123 INFO L933 BasicCegarLoop]: 195 mSDtfsCounter, 100 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 14 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-11-20 06:25:57,123 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 488 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 262 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2021-11-20 06:25:57,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2021-11-20 06:25:57,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 234. [2021-11-20 06:25:57,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 233 states have (on average 1.5407725321888412) internal successors, (359), 233 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:25:57,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 359 transitions. [2021-11-20 06:25:57,132 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 359 transitions. Word has length 100 [2021-11-20 06:25:57,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:25:57,133 INFO L470 AbstractCegarLoop]: Abstraction has 234 states and 359 transitions. [2021-11-20 06:25:57,133 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:25:57,133 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 359 transitions. [2021-11-20 06:25:57,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-11-20 06:25:57,134 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:25:57,135 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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] [2021-11-20 06:25:57,135 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-11-20 06:25:57,135 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:25:57,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:25:57,136 INFO L85 PathProgramCache]: Analyzing trace with hash -1444385462, now seen corresponding path program 1 times [2021-11-20 06:25:57,136 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:25:57,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391877376] [2021-11-20 06:25:57,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:25:57,137 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:25:57,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:25:57,203 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-20 06:25:57,204 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:25:57,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391877376] [2021-11-20 06:25:57,204 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391877376] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:25:57,204 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:25:57,205 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 06:25:57,205 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524232605] [2021-11-20 06:25:57,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:25:57,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 06:25:57,206 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:25:57,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 06:25:57,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 06:25:57,206 INFO L87 Difference]: Start difference. First operand 234 states and 359 transitions. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:25:59,216 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:25:59,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:25:59,630 INFO L93 Difference]: Finished difference Result 498 states and 761 transitions. [2021-11-20 06:25:59,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 06:25:59,631 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2021-11-20 06:25:59,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:25:59,633 INFO L225 Difference]: With dead ends: 498 [2021-11-20 06:25:59,634 INFO L226 Difference]: Without dead ends: 285 [2021-11-20 06:25:59,634 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:25:59,635 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 100 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 492 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-11-20 06:25:59,635 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 492 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 258 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2021-11-20 06:25:59,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2021-11-20 06:25:59,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 234. [2021-11-20 06:25:59,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 233 states have (on average 1.536480686695279) internal successors, (358), 233 states have internal predecessors, (358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:25:59,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 358 transitions. [2021-11-20 06:25:59,645 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 358 transitions. Word has length 100 [2021-11-20 06:25:59,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:25:59,645 INFO L470 AbstractCegarLoop]: Abstraction has 234 states and 358 transitions. [2021-11-20 06:25:59,645 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:25:59,646 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 358 transitions. [2021-11-20 06:25:59,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-20 06:25:59,647 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:25:59,647 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-11-20 06:25:59,647 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-11-20 06:25:59,648 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:25:59,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:25:59,648 INFO L85 PathProgramCache]: Analyzing trace with hash -1880441435, now seen corresponding path program 1 times [2021-11-20 06:25:59,649 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:25:59,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600558201] [2021-11-20 06:25:59,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:25:59,649 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:25:59,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:25:59,720 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-20 06:25:59,721 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:25:59,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600558201] [2021-11-20 06:25:59,721 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600558201] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:25:59,721 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:25:59,721 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 06:25:59,722 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061131080] [2021-11-20 06:25:59,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:25:59,722 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 06:25:59,723 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:25:59,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 06:25:59,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 06:25:59,724 INFO L87 Difference]: Start difference. First operand 234 states and 358 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:26:01,733 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:26:01,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:26:01,977 INFO L93 Difference]: Finished difference Result 468 states and 719 transitions. [2021-11-20 06:26:01,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 06:26:01,977 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2021-11-20 06:26:01,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:26:01,979 INFO L225 Difference]: With dead ends: 468 [2021-11-20 06:26:01,979 INFO L226 Difference]: Without dead ends: 255 [2021-11-20 06:26:01,980 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:26:01,980 INFO L933 BasicCegarLoop]: 210 mSDtfsCounter, 49 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 518 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-11-20 06:26:01,981 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 518 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 170 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2021-11-20 06:26:01,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2021-11-20 06:26:01,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 234. [2021-11-20 06:26:01,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 233 states have (on average 1.5321888412017168) internal successors, (357), 233 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:26:01,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 357 transitions. [2021-11-20 06:26:01,989 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 357 transitions. Word has length 101 [2021-11-20 06:26:01,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:26:01,989 INFO L470 AbstractCegarLoop]: Abstraction has 234 states and 357 transitions. [2021-11-20 06:26:01,989 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:26:01,989 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 357 transitions. [2021-11-20 06:26:01,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-20 06:26:01,990 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:26:01,991 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-11-20 06:26:01,991 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-11-20 06:26:01,991 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:26:01,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:26:01,992 INFO L85 PathProgramCache]: Analyzing trace with hash -1671911279, now seen corresponding path program 1 times [2021-11-20 06:26:01,992 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:26:01,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547093170] [2021-11-20 06:26:01,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:26:01,993 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:26:02,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:26:02,076 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-20 06:26:02,077 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:26:02,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547093170] [2021-11-20 06:26:02,077 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547093170] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:26:02,077 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:26:02,078 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 06:26:02,078 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028727029] [2021-11-20 06:26:02,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:26:02,078 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 06:26:02,079 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:26:02,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 06:26:02,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:26:02,079 INFO L87 Difference]: Start difference. First operand 234 states and 357 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:26:04,089 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:26:06,114 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:26:06,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:26:06,526 INFO L93 Difference]: Finished difference Result 468 states and 719 transitions. [2021-11-20 06:26:06,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 06:26:06,527 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2021-11-20 06:26:06,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:26:06,529 INFO L225 Difference]: With dead ends: 468 [2021-11-20 06:26:06,529 INFO L226 Difference]: Without dead ends: 255 [2021-11-20 06:26:06,530 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-20 06:26:06,531 INFO L933 BasicCegarLoop]: 108 mSDtfsCounter, 144 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 42 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2021-11-20 06:26:06,531 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 333 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 310 Invalid, 2 Unknown, 0 Unchecked, 4.4s Time] [2021-11-20 06:26:06,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2021-11-20 06:26:06,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 254. [2021-11-20 06:26:06,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 253 states have (on average 1.5138339920948616) internal successors, (383), 253 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:26:06,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 383 transitions. [2021-11-20 06:26:06,541 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 383 transitions. Word has length 101 [2021-11-20 06:26:06,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:26:06,542 INFO L470 AbstractCegarLoop]: Abstraction has 254 states and 383 transitions. [2021-11-20 06:26:06,542 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:26:06,543 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 383 transitions. [2021-11-20 06:26:06,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-11-20 06:26:06,544 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:26:06,544 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-11-20 06:26:06,544 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-11-20 06:26:06,545 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:26:06,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:26:06,545 INFO L85 PathProgramCache]: Analyzing trace with hash -129751462, now seen corresponding path program 1 times [2021-11-20 06:26:06,546 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:26:06,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390400305] [2021-11-20 06:26:06,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:26:06,546 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:26:06,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:26:06,629 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-20 06:26:06,629 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:26:06,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390400305] [2021-11-20 06:26:06,630 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390400305] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:26:06,630 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:26:06,630 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 06:26:06,630 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769704601] [2021-11-20 06:26:06,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:26:06,631 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 06:26:06,631 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:26:06,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 06:26:06,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 06:26:06,632 INFO L87 Difference]: Start difference. First operand 254 states and 383 transitions. Second operand has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:26:08,644 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:26:08,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:26:08,919 INFO L93 Difference]: Finished difference Result 508 states and 768 transitions. [2021-11-20 06:26:08,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 06:26:08,920 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 102 [2021-11-20 06:26:08,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:26:08,922 INFO L225 Difference]: With dead ends: 508 [2021-11-20 06:26:08,922 INFO L226 Difference]: Without dead ends: 275 [2021-11-20 06:26:08,922 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:26:08,923 INFO L933 BasicCegarLoop]: 223 mSDtfsCounter, 47 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 544 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-20 06:26:08,923 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 544 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 169 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2021-11-20 06:26:08,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2021-11-20 06:26:08,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 254. [2021-11-20 06:26:08,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 253 states have (on average 1.5098814229249011) internal successors, (382), 253 states have internal predecessors, (382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:26:08,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 382 transitions. [2021-11-20 06:26:08,933 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 382 transitions. Word has length 102 [2021-11-20 06:26:08,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:26:08,933 INFO L470 AbstractCegarLoop]: Abstraction has 254 states and 382 transitions. [2021-11-20 06:26:08,933 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:26:08,933 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 382 transitions. [2021-11-20 06:26:08,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-11-20 06:26:08,934 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:26:08,935 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-11-20 06:26:08,935 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-11-20 06:26:08,935 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:26:08,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:26:08,936 INFO L85 PathProgramCache]: Analyzing trace with hash -690451240, now seen corresponding path program 1 times [2021-11-20 06:26:08,936 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:26:08,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399237232] [2021-11-20 06:26:08,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:26:08,936 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:26:08,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:26:09,002 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-20 06:26:09,003 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:26:09,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399237232] [2021-11-20 06:26:09,003 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399237232] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:26:09,003 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:26:09,003 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 06:26:09,004 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563250632] [2021-11-20 06:26:09,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:26:09,004 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 06:26:09,004 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:26:09,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 06:26:09,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 06:26:09,005 INFO L87 Difference]: Start difference. First operand 254 states and 382 transitions. Second operand has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:26:11,014 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:26:11,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:26:11,416 INFO L93 Difference]: Finished difference Result 537 states and 805 transitions. [2021-11-20 06:26:11,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 06:26:11,431 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 102 [2021-11-20 06:26:11,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:26:11,433 INFO L225 Difference]: With dead ends: 537 [2021-11-20 06:26:11,433 INFO L226 Difference]: Without dead ends: 304 [2021-11-20 06:26:11,434 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:26:11,435 INFO L933 BasicCegarLoop]: 195 mSDtfsCounter, 103 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-11-20 06:26:11,435 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 488 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 253 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2021-11-20 06:26:11,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2021-11-20 06:26:11,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 254. [2021-11-20 06:26:11,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 253 states have (on average 1.5059288537549407) internal successors, (381), 253 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:26:11,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 381 transitions. [2021-11-20 06:26:11,445 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 381 transitions. Word has length 102 [2021-11-20 06:26:11,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:26:11,446 INFO L470 AbstractCegarLoop]: Abstraction has 254 states and 381 transitions. [2021-11-20 06:26:11,446 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:26:11,446 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 381 transitions. [2021-11-20 06:26:11,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-20 06:26:11,447 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:26:11,447 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-11-20 06:26:11,448 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-11-20 06:26:11,448 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:26:11,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:26:11,449 INFO L85 PathProgramCache]: Analyzing trace with hash -460987164, now seen corresponding path program 1 times [2021-11-20 06:26:11,449 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:26:11,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935054704] [2021-11-20 06:26:11,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:26:11,449 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:26:11,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:26:11,516 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-20 06:26:11,516 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:26:11,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935054704] [2021-11-20 06:26:11,517 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935054704] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:26:11,517 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:26:11,517 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 06:26:11,517 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198413714] [2021-11-20 06:26:11,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:26:11,518 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 06:26:11,518 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:26:11,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 06:26:11,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 06:26:11,519 INFO L87 Difference]: Start difference. First operand 254 states and 381 transitions. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:26:13,528 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:26:13,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:26:13,809 INFO L93 Difference]: Finished difference Result 508 states and 764 transitions. [2021-11-20 06:26:13,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 06:26:13,810 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2021-11-20 06:26:13,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:26:13,811 INFO L225 Difference]: With dead ends: 508 [2021-11-20 06:26:13,811 INFO L226 Difference]: Without dead ends: 275 [2021-11-20 06:26:13,812 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:26:13,812 INFO L933 BasicCegarLoop]: 223 mSDtfsCounter, 45 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 544 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-20 06:26:13,813 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 544 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 169 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2021-11-20 06:26:13,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2021-11-20 06:26:13,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 254. [2021-11-20 06:26:13,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 253 states have (on average 1.5019762845849802) internal successors, (380), 253 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:26:13,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 380 transitions. [2021-11-20 06:26:13,823 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 380 transitions. Word has length 103 [2021-11-20 06:26:13,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:26:13,823 INFO L470 AbstractCegarLoop]: Abstraction has 254 states and 380 transitions. [2021-11-20 06:26:13,823 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:26:13,824 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 380 transitions. [2021-11-20 06:26:13,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-20 06:26:13,825 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:26:13,825 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-11-20 06:26:13,825 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-11-20 06:26:13,825 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:26:13,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:26:13,826 INFO L85 PathProgramCache]: Analyzing trace with hash -662811098, now seen corresponding path program 1 times [2021-11-20 06:26:13,826 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:26:13,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965341050] [2021-11-20 06:26:13,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:26:13,827 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:26:13,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:26:13,891 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-20 06:26:13,892 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:26:13,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965341050] [2021-11-20 06:26:13,892 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965341050] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:26:13,892 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:26:13,892 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 06:26:13,893 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363675395] [2021-11-20 06:26:13,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:26:13,893 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 06:26:13,893 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:26:13,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 06:26:13,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 06:26:13,894 INFO L87 Difference]: Start difference. First operand 254 states and 380 transitions. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:26:15,903 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:26:16,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:26:16,294 INFO L93 Difference]: Finished difference Result 537 states and 801 transitions. [2021-11-20 06:26:16,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 06:26:16,295 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2021-11-20 06:26:16,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:26:16,297 INFO L225 Difference]: With dead ends: 537 [2021-11-20 06:26:16,297 INFO L226 Difference]: Without dead ends: 304 [2021-11-20 06:26:16,297 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:26:16,298 INFO L933 BasicCegarLoop]: 194 mSDtfsCounter, 101 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 486 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-11-20 06:26:16,299 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 486 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 253 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2021-11-20 06:26:16,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2021-11-20 06:26:16,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 254. [2021-11-20 06:26:16,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 253 states have (on average 1.4980237154150198) internal successors, (379), 253 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:26:16,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 379 transitions. [2021-11-20 06:26:16,309 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 379 transitions. Word has length 103 [2021-11-20 06:26:16,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:26:16,310 INFO L470 AbstractCegarLoop]: Abstraction has 254 states and 379 transitions. [2021-11-20 06:26:16,310 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:26:16,310 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 379 transitions. [2021-11-20 06:26:16,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-11-20 06:26:16,312 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:26:16,312 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-11-20 06:26:16,312 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-11-20 06:26:16,312 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:26:16,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:26:16,313 INFO L85 PathProgramCache]: Analyzing trace with hash -768373665, now seen corresponding path program 1 times [2021-11-20 06:26:16,313 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:26:16,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501734059] [2021-11-20 06:26:16,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:26:16,314 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:26:16,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:26:16,385 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-20 06:26:16,386 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:26:16,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501734059] [2021-11-20 06:26:16,386 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501734059] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:26:16,386 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:26:16,387 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 06:26:16,387 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092515566] [2021-11-20 06:26:16,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:26:16,387 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 06:26:16,388 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:26:16,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 06:26:16,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 06:26:16,388 INFO L87 Difference]: Start difference. First operand 254 states and 379 transitions. Second operand has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:26:18,398 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:26:18,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:26:18,672 INFO L93 Difference]: Finished difference Result 508 states and 760 transitions. [2021-11-20 06:26:18,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 06:26:18,673 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2021-11-20 06:26:18,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:26:18,674 INFO L225 Difference]: With dead ends: 508 [2021-11-20 06:26:18,674 INFO L226 Difference]: Without dead ends: 275 [2021-11-20 06:26:18,675 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:26:18,676 INFO L933 BasicCegarLoop]: 223 mSDtfsCounter, 43 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 544 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-20 06:26:18,676 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 544 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 169 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2021-11-20 06:26:18,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2021-11-20 06:26:18,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 254. [2021-11-20 06:26:18,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 253 states have (on average 1.4940711462450593) internal successors, (378), 253 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:26:18,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 378 transitions. [2021-11-20 06:26:18,686 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 378 transitions. Word has length 104 [2021-11-20 06:26:18,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:26:18,686 INFO L470 AbstractCegarLoop]: Abstraction has 254 states and 378 transitions. [2021-11-20 06:26:18,686 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:26:18,687 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 378 transitions. [2021-11-20 06:26:18,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-11-20 06:26:18,688 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:26:18,688 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-11-20 06:26:18,688 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-11-20 06:26:18,689 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:26:18,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:26:18,689 INFO L85 PathProgramCache]: Analyzing trace with hash 1565018973, now seen corresponding path program 1 times [2021-11-20 06:26:18,689 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:26:18,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230072611] [2021-11-20 06:26:18,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:26:18,690 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:26:18,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:26:18,754 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-20 06:26:18,755 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:26:18,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230072611] [2021-11-20 06:26:18,755 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230072611] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:26:18,755 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:26:18,755 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 06:26:18,756 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184182404] [2021-11-20 06:26:18,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:26:18,756 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 06:26:18,756 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:26:18,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 06:26:18,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 06:26:18,757 INFO L87 Difference]: Start difference. First operand 254 states and 378 transitions. Second operand has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:26:20,766 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:26:21,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:26:21,216 INFO L93 Difference]: Finished difference Result 537 states and 797 transitions. [2021-11-20 06:26:21,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 06:26:21,217 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2021-11-20 06:26:21,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:26:21,219 INFO L225 Difference]: With dead ends: 537 [2021-11-20 06:26:21,219 INFO L226 Difference]: Without dead ends: 304 [2021-11-20 06:26:21,220 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:26:21,221 INFO L933 BasicCegarLoop]: 193 mSDtfsCounter, 99 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-11-20 06:26:21,221 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 484 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 253 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2021-11-20 06:26:21,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2021-11-20 06:26:21,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 254. [2021-11-20 06:26:21,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 253 states have (on average 1.4901185770750989) internal successors, (377), 253 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:26:21,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 377 transitions. [2021-11-20 06:26:21,233 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 377 transitions. Word has length 104 [2021-11-20 06:26:21,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:26:21,233 INFO L470 AbstractCegarLoop]: Abstraction has 254 states and 377 transitions. [2021-11-20 06:26:21,234 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:26:21,234 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 377 transitions. [2021-11-20 06:26:21,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-11-20 06:26:21,235 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:26:21,235 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2021-11-20 06:26:21,236 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-11-20 06:26:21,236 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:26:21,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:26:21,237 INFO L85 PathProgramCache]: Analyzing trace with hash -336434935, now seen corresponding path program 1 times [2021-11-20 06:26:21,237 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:26:21,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901184570] [2021-11-20 06:26:21,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:26:21,237 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:26:21,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:26:21,313 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-20 06:26:21,313 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:26:21,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901184570] [2021-11-20 06:26:21,313 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901184570] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:26:21,314 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:26:21,314 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 06:26:21,314 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589203681] [2021-11-20 06:26:21,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:26:21,315 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 06:26:21,315 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:26:21,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 06:26:21,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 06:26:21,316 INFO L87 Difference]: Start difference. First operand 254 states and 377 transitions. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:26:23,326 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:26:23,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:26:23,640 INFO L93 Difference]: Finished difference Result 498 states and 744 transitions. [2021-11-20 06:26:23,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 06:26:23,641 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2021-11-20 06:26:23,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:26:23,643 INFO L225 Difference]: With dead ends: 498 [2021-11-20 06:26:23,643 INFO L226 Difference]: Without dead ends: 265 [2021-11-20 06:26:23,644 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:26:23,644 INFO L933 BasicCegarLoop]: 217 mSDtfsCounter, 34 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 532 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-20 06:26:23,645 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 532 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 156 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2021-11-20 06:26:23,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2021-11-20 06:26:23,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 254. [2021-11-20 06:26:23,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 253 states have (on average 1.4861660079051384) internal successors, (376), 253 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:26:23,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 376 transitions. [2021-11-20 06:26:23,654 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 376 transitions. Word has length 105 [2021-11-20 06:26:23,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:26:23,655 INFO L470 AbstractCegarLoop]: Abstraction has 254 states and 376 transitions. [2021-11-20 06:26:23,655 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:26:23,655 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 376 transitions. [2021-11-20 06:26:23,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-11-20 06:26:23,656 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:26:23,656 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2021-11-20 06:26:23,656 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-11-20 06:26:23,657 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:26:23,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:26:23,657 INFO L85 PathProgramCache]: Analyzing trace with hash -1015707189, now seen corresponding path program 1 times [2021-11-20 06:26:23,657 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:26:23,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102321815] [2021-11-20 06:26:23,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:26:23,658 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:26:23,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:26:23,752 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-20 06:26:23,752 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:26:23,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102321815] [2021-11-20 06:26:23,753 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102321815] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:26:23,753 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:26:23,753 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 06:26:23,754 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273037623] [2021-11-20 06:26:23,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:26:23,754 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 06:26:23,754 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:26:23,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 06:26:23,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 06:26:23,755 INFO L87 Difference]: Start difference. First operand 254 states and 376 transitions. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:26:25,764 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:26:26,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:26:26,213 INFO L93 Difference]: Finished difference Result 527 states and 781 transitions. [2021-11-20 06:26:26,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 06:26:26,214 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2021-11-20 06:26:26,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:26:26,216 INFO L225 Difference]: With dead ends: 527 [2021-11-20 06:26:26,216 INFO L226 Difference]: Without dead ends: 294 [2021-11-20 06:26:26,216 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:26:26,217 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 90 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-11-20 06:26:26,217 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [90 Valid, 470 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 240 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2021-11-20 06:26:26,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2021-11-20 06:26:26,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 254. [2021-11-20 06:26:26,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 253 states have (on average 1.482213438735178) internal successors, (375), 253 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:26:26,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 375 transitions. [2021-11-20 06:26:26,228 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 375 transitions. Word has length 105 [2021-11-20 06:26:26,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:26:26,228 INFO L470 AbstractCegarLoop]: Abstraction has 254 states and 375 transitions. [2021-11-20 06:26:26,229 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:26:26,229 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 375 transitions. [2021-11-20 06:26:26,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-20 06:26:26,230 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:26:26,230 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2021-11-20 06:26:26,230 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-11-20 06:26:26,231 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:26:26,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:26:26,231 INFO L85 PathProgramCache]: Analyzing trace with hash -1617780493, now seen corresponding path program 1 times [2021-11-20 06:26:26,231 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:26:26,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385362035] [2021-11-20 06:26:26,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:26:26,232 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:26:26,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:26:26,298 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-20 06:26:26,298 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:26:26,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385362035] [2021-11-20 06:26:26,299 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385362035] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:26:26,299 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:26:26,299 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 06:26:26,299 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954820436] [2021-11-20 06:26:26,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:26:26,301 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 06:26:26,301 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:26:26,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 06:26:26,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 06:26:26,303 INFO L87 Difference]: Start difference. First operand 254 states and 375 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:26:26,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:26:26,338 INFO L93 Difference]: Finished difference Result 716 states and 1072 transitions. [2021-11-20 06:26:26,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 06:26:26,339 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-11-20 06:26:26,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:26:26,342 INFO L225 Difference]: With dead ends: 716 [2021-11-20 06:26:26,342 INFO L226 Difference]: Without dead ends: 483 [2021-11-20 06:26:26,343 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 06:26:26,351 INFO L933 BasicCegarLoop]: 232 mSDtfsCounter, 133 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 422 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 06:26:26,352 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [133 Valid, 422 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 06:26:26,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2021-11-20 06:26:26,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 483. [2021-11-20 06:26:26,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 482 states have (on average 1.4854771784232366) internal successors, (716), 482 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:26:26,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 716 transitions. [2021-11-20 06:26:26,369 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 716 transitions. Word has length 108 [2021-11-20 06:26:26,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:26:26,369 INFO L470 AbstractCegarLoop]: Abstraction has 483 states and 716 transitions. [2021-11-20 06:26:26,370 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:26:26,370 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 716 transitions. [2021-11-20 06:26:26,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-20 06:26:26,372 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:26:26,372 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2021-11-20 06:26:26,372 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-11-20 06:26:26,372 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:26:26,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:26:26,374 INFO L85 PathProgramCache]: Analyzing trace with hash 1461033077, now seen corresponding path program 1 times [2021-11-20 06:26:26,374 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:26:26,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2549806] [2021-11-20 06:26:26,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:26:26,375 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:26:26,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:26:26,425 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-20 06:26:26,425 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:26:26,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2549806] [2021-11-20 06:26:26,425 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2549806] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:26:26,426 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:26:26,426 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 06:26:26,426 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682072438] [2021-11-20 06:26:26,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:26:26,428 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 06:26:26,428 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:26:26,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 06:26:26,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 06:26:26,429 INFO L87 Difference]: Start difference. First operand 483 states and 716 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:26:26,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:26:26,460 INFO L93 Difference]: Finished difference Result 972 states and 1444 transitions. [2021-11-20 06:26:26,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 06:26:26,460 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-11-20 06:26:26,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:26:26,464 INFO L225 Difference]: With dead ends: 972 [2021-11-20 06:26:26,464 INFO L226 Difference]: Without dead ends: 510 [2021-11-20 06:26:26,465 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 06:26:26,466 INFO L933 BasicCegarLoop]: 214 mSDtfsCounter, 15 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 06:26:26,466 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 404 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 06:26:26,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2021-11-20 06:26:26,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 510. [2021-11-20 06:26:26,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 510 states, 509 states have (on average 1.475442043222004) internal successors, (751), 509 states have internal predecessors, (751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:26:26,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 510 states to 510 states and 751 transitions. [2021-11-20 06:26:26,508 INFO L78 Accepts]: Start accepts. Automaton has 510 states and 751 transitions. Word has length 108 [2021-11-20 06:26:26,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:26:26,509 INFO L470 AbstractCegarLoop]: Abstraction has 510 states and 751 transitions. [2021-11-20 06:26:26,509 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:26:26,509 INFO L276 IsEmpty]: Start isEmpty. Operand 510 states and 751 transitions. [2021-11-20 06:26:26,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-20 06:26:26,511 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:26:26,511 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2021-11-20 06:26:26,511 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-11-20 06:26:26,512 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:26:26,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:26:26,512 INFO L85 PathProgramCache]: Analyzing trace with hash 874756855, now seen corresponding path program 1 times [2021-11-20 06:26:26,512 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:26:26,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829570165] [2021-11-20 06:26:26,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:26:26,513 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:26:26,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:26:26,560 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2021-11-20 06:26:26,560 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:26:26,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829570165] [2021-11-20 06:26:26,561 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829570165] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:26:26,561 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:26:26,561 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 06:26:26,561 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749655266] [2021-11-20 06:26:26,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:26:26,562 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 06:26:26,562 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:26:26,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 06:26:26,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 06:26:26,563 INFO L87 Difference]: Start difference. First operand 510 states and 751 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:26:26,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:26:26,589 INFO L93 Difference]: Finished difference Result 1001 states and 1480 transitions. [2021-11-20 06:26:26,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 06:26:26,590 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-11-20 06:26:26,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:26:26,593 INFO L225 Difference]: With dead ends: 1001 [2021-11-20 06:26:26,593 INFO L226 Difference]: Without dead ends: 512 [2021-11-20 06:26:26,594 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 06:26:26,595 INFO L933 BasicCegarLoop]: 202 mSDtfsCounter, 4 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 06:26:26,598 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 383 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 06:26:26,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2021-11-20 06:26:26,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 512. [2021-11-20 06:26:26,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 512 states, 511 states have (on average 1.4735812133072408) internal successors, (753), 511 states have internal predecessors, (753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:26:26,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 512 states and 753 transitions. [2021-11-20 06:26:26,616 INFO L78 Accepts]: Start accepts. Automaton has 512 states and 753 transitions. Word has length 108 [2021-11-20 06:26:26,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:26:26,617 INFO L470 AbstractCegarLoop]: Abstraction has 512 states and 753 transitions. [2021-11-20 06:26:26,617 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:26:26,617 INFO L276 IsEmpty]: Start isEmpty. Operand 512 states and 753 transitions. [2021-11-20 06:26:26,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-11-20 06:26:26,619 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:26:26,619 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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] [2021-11-20 06:26:26,620 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-11-20 06:26:26,620 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:26:26,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:26:26,624 INFO L85 PathProgramCache]: Analyzing trace with hash 1658817010, now seen corresponding path program 1 times [2021-11-20 06:26:26,624 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:26:26,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105925705] [2021-11-20 06:26:26,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:26:26,625 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:26:26,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:26:26,699 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2021-11-20 06:26:26,699 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:26:26,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105925705] [2021-11-20 06:26:26,700 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105925705] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:26:26,700 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:26:26,700 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 06:26:26,700 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640210736] [2021-11-20 06:26:26,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:26:26,702 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 06:26:26,702 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:26:26,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 06:26:26,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 06:26:26,703 INFO L87 Difference]: Start difference. First operand 512 states and 753 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:26:26,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:26:26,743 INFO L93 Difference]: Finished difference Result 1001 states and 1479 transitions. [2021-11-20 06:26:26,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 06:26:26,743 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 127 [2021-11-20 06:26:26,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:26:26,747 INFO L225 Difference]: With dead ends: 1001 [2021-11-20 06:26:26,747 INFO L226 Difference]: Without dead ends: 512 [2021-11-20 06:26:26,748 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 06:26:26,750 INFO L933 BasicCegarLoop]: 373 mSDtfsCounter, 143 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 560 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 06:26:26,752 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 560 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 06:26:26,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2021-11-20 06:26:26,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 512. [2021-11-20 06:26:26,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 512 states, 511 states have (on average 1.4637964774951076) internal successors, (748), 511 states have internal predecessors, (748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:26:26,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 512 states and 748 transitions. [2021-11-20 06:26:26,770 INFO L78 Accepts]: Start accepts. Automaton has 512 states and 748 transitions. Word has length 127 [2021-11-20 06:26:26,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:26:26,771 INFO L470 AbstractCegarLoop]: Abstraction has 512 states and 748 transitions. [2021-11-20 06:26:26,771 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:26:26,771 INFO L276 IsEmpty]: Start isEmpty. Operand 512 states and 748 transitions. [2021-11-20 06:26:26,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-11-20 06:26:26,773 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:26:26,773 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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] [2021-11-20 06:26:26,774 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-11-20 06:26:26,774 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:26:26,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:26:26,775 INFO L85 PathProgramCache]: Analyzing trace with hash -116280318, now seen corresponding path program 1 times [2021-11-20 06:26:26,775 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:26:26,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244273493] [2021-11-20 06:26:26,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:26:26,775 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:26:26,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:26:27,054 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2021-11-20 06:26:27,054 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:26:27,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244273493] [2021-11-20 06:26:27,055 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244273493] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:26:27,055 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:26:27,055 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 06:26:27,055 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218099527] [2021-11-20 06:26:27,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:26:27,056 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 06:26:27,056 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:26:27,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 06:26:27,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:26:27,057 INFO L87 Difference]: Start difference. First operand 512 states and 748 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:26:29,066 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:26:31,094 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:26:31,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:26:31,544 INFO L93 Difference]: Finished difference Result 1021 states and 1492 transitions. [2021-11-20 06:26:31,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 06:26:31,544 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 128 [2021-11-20 06:26:31,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:26:31,548 INFO L225 Difference]: With dead ends: 1021 [2021-11-20 06:26:31,548 INFO L226 Difference]: Without dead ends: 512 [2021-11-20 06:26:31,549 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-20 06:26:31,550 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 7 mSDsluCounter, 438 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 635 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2021-11-20 06:26:31,550 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 635 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 166 Invalid, 2 Unknown, 0 Unchecked, 4.4s Time] [2021-11-20 06:26:31,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2021-11-20 06:26:31,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 512. [2021-11-20 06:26:31,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 512 states, 511 states have (on average 1.461839530332681) internal successors, (747), 511 states have internal predecessors, (747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:26:31,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 512 states and 747 transitions. [2021-11-20 06:26:31,571 INFO L78 Accepts]: Start accepts. Automaton has 512 states and 747 transitions. Word has length 128 [2021-11-20 06:26:31,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:26:31,571 INFO L470 AbstractCegarLoop]: Abstraction has 512 states and 747 transitions. [2021-11-20 06:26:31,571 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:26:31,572 INFO L276 IsEmpty]: Start isEmpty. Operand 512 states and 747 transitions. [2021-11-20 06:26:31,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-11-20 06:26:31,573 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:26:31,574 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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] [2021-11-20 06:26:31,574 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-11-20 06:26:31,575 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:26:31,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:26:31,576 INFO L85 PathProgramCache]: Analyzing trace with hash -545938624, now seen corresponding path program 1 times [2021-11-20 06:26:31,576 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:26:31,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289586689] [2021-11-20 06:26:31,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:26:31,577 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:26:31,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:26:31,965 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 06:26:32,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:26:32,348 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 06:26:32,348 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-20 06:26:32,349 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-20 06:26:32,351 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-11-20 06:26:32,357 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:26:32,361 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-20 06:26:32,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 06:26:32 BoogieIcfgContainer [2021-11-20 06:26:32,508 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-20 06:26:32,508 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 06:26:32,508 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 06:26:32,509 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 06:26:32,509 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:24:54" (3/4) ... [2021-11-20 06:26:32,512 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-20 06:26:32,512 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 06:26:32,512 INFO L158 Benchmark]: Toolchain (without parser) took 102349.97ms. Allocated memory was 90.2MB in the beginning and 151.0MB in the end (delta: 60.8MB). Free memory was 53.2MB in the beginning and 49.9MB in the end (delta: 3.3MB). Peak memory consumption was 64.2MB. Max. memory is 16.1GB. [2021-11-20 06:26:32,512 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 90.2MB. Free memory was 62.7MB in the beginning and 62.7MB in the end (delta: 21.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 06:26:32,512 INFO L158 Benchmark]: CACSL2BoogieTranslator took 766.83ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 53.0MB in the beginning and 62.9MB in the end (delta: -9.9MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. [2021-11-20 06:26:32,513 INFO L158 Benchmark]: Boogie Procedure Inliner took 90.31ms. Allocated memory is still 109.1MB. Free memory was 62.5MB in the beginning and 57.8MB in the end (delta: 4.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-20 06:26:32,513 INFO L158 Benchmark]: Boogie Preprocessor took 116.84ms. Allocated memory is still 109.1MB. Free memory was 57.8MB in the beginning and 50.9MB in the end (delta: 6.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-20 06:26:32,513 INFO L158 Benchmark]: RCFGBuilder took 3376.39ms. Allocated memory is still 109.1MB. Free memory was 50.9MB in the beginning and 50.8MB in the end (delta: 112.9kB). Peak memory consumption was 25.8MB. Max. memory is 16.1GB. [2021-11-20 06:26:32,513 INFO L158 Benchmark]: TraceAbstraction took 97989.90ms. Allocated memory was 109.1MB in the beginning and 151.0MB in the end (delta: 41.9MB). Free memory was 50.2MB in the beginning and 49.9MB in the end (delta: 257.5kB). Peak memory consumption was 62.1MB. Max. memory is 16.1GB. [2021-11-20 06:26:32,513 INFO L158 Benchmark]: Witness Printer took 3.61ms. Allocated memory is still 151.0MB. Free memory is still 49.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 06:26:32,514 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 90.2MB. Free memory was 62.7MB in the beginning and 62.7MB in the end (delta: 21.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 766.83ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 53.0MB in the beginning and 62.9MB in the end (delta: -9.9MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 90.31ms. Allocated memory is still 109.1MB. Free memory was 62.5MB in the beginning and 57.8MB in the end (delta: 4.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 116.84ms. Allocated memory is still 109.1MB. Free memory was 57.8MB in the beginning and 50.9MB in the end (delta: 6.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 3376.39ms. Allocated memory is still 109.1MB. Free memory was 50.9MB in the beginning and 50.8MB in the end (delta: 112.9kB). Peak memory consumption was 25.8MB. Max. memory is 16.1GB. * TraceAbstraction took 97989.90ms. Allocated memory was 109.1MB in the beginning and 151.0MB in the end (delta: 41.9MB). Free memory was 50.2MB in the beginning and 49.9MB in the end (delta: 257.5kB). Peak memory consumption was 62.1MB. Max. memory is 16.1GB. * Witness Printer took 3.61ms. Allocated memory is still 151.0MB. Free memory is still 49.9MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1737]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseAnd at line 1151. Possible FailurePath: [L1054] static int init = 1; [L1055] static SSL_METHOD SSLv3_server_data ; VAL [init=1, SSLv3_server_data={4:0}] [L1077] SSL *s ; [L1078] int tmp ; [L1082] s = malloc(sizeof(SSL)) [L1083] s->s3 = malloc(sizeof(struct ssl3_state_st)) [L1084] s->ctx = malloc(sizeof(SSL_CTX)) [L1085] s->session = malloc(sizeof(SSL_SESSION)) [L1086] s->state = 8464 [L1088] s->info_callback = (void (*) ()) __VERIFIER_nondet_ulong() [L1089] s->options = __VERIFIER_nondet_ulong() [L1090] s->verify_mode = __VERIFIER_nondet_int() [L1091] EXPR s->session [L1091] (s->session)->peer = (struct x509_st*) __VERIFIER_nondet_ulong() [L1092] EXPR s->s3 [L1092] (s->s3)->tmp.cert_request = __VERIFIER_nondet_int() [L1093] EXPR s->s3 [L1093] (s->s3)->tmp.new_cipher = malloc(sizeof(struct ssl_cipher_st)) [L1094] EXPR s->s3 [L1094] EXPR (s->s3)->tmp.new_cipher [L1094] ((s->s3)->tmp.new_cipher)->algorithms = __VERIFIER_nondet_ulong() [L1095] EXPR s->s3 [L1095] EXPR (s->s3)->tmp.new_cipher [L1095] ((s->s3)->tmp.new_cipher)->algo_strength = __VERIFIER_nondet_ulong() [L1096] COND FALSE !(__VERIFIER_nondet_int()) [L1102] s->cert = malloc(sizeof(struct cert_st)) [L1103] EXPR s->cert [L1103] (s->cert)->pkeys[0].privatekey = (struct evp_pkey_st*) __VERIFIER_nondet_ulong() [L1106] CALL ssl3_accept(s) [L1112] BUF_MEM *buf = (BUF_MEM *)__VERIFIER_nondet_ulong(); [L1113] unsigned long l ; [L1114] unsigned long Time ; [L1115] unsigned long tmp = __VERIFIER_nondet_long() ; [L1116] void (*cb)() ; [L1117] long num1 ; [L1118] int ret ; [L1119] int new_state ; [L1120] int state ; [L1121] int skip ; [L1122] int got_new_session ; [L1123] int tmp___1 = __VERIFIER_nondet_int() ; [L1124] int tmp___2 = __VERIFIER_nondet_int() ; [L1125] int tmp___3 ; [L1126] int tmp___4 ; [L1127] int tmp___5 ; [L1128] int tmp___6 ; [L1129] int tmp___7 ; [L1130] long tmp___8 = __VERIFIER_nondet_long() ; [L1131] int tmp___9 ; [L1132] int tmp___10 ; [L1133] int blastFlag ; [L1137] blastFlag = 0 [L1138] s->hit=__VERIFIER_nondet_int () [L1139] s->state = 8464 [L1140] Time = tmp [L1141] cb = (void (*)())((void *)0) [L1142] ret = -1 [L1143] skip = 0 [L1144] got_new_session = 0 [L1145] EXPR s->info_callback VAL [={0:0}, blastFlag=0, buf={0:7}, got_new_session=0, init=1, ret=-1, s={-4294967298:0}, s={-4294967298:0}, s->info_callback={0:1}, skip=0, SSLv3_server_data={4:0}, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1145] COND TRUE (unsigned long )s->info_callback != (unsigned long )((void *)0) [L1146] EXPR s->info_callback [L1146] cb = s->info_callback [L1150] EXPR s->in_handshake [L1150] s->in_handshake += 1 [L1151] COND FALSE !(tmp___1 & 12288) VAL [={0:1}, blastFlag=0, buf={0:7}, got_new_session=0, init=1, ret=-1, s={-4294967298:0}, s={-4294967298:0}, skip=0, SSLv3_server_data={4:0}, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1160] EXPR s->cert VAL [={0:1}, blastFlag=0, buf={0:7}, got_new_session=0, init=1, ret=-1, s={-4294967298:0}, s={-4294967298:0}, s->cert={-4294967295:0}, skip=0, SSLv3_server_data={4:0}, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1160] COND FALSE !((unsigned long )s->cert == (unsigned long )((void *)0)) [L1166] COND TRUE 1 VAL [={0:1}, blastFlag=0, buf={0:7}, got_new_session=0, init=1, ret=-1, s={-4294967298:0}, s={-4294967298:0}, skip=0, SSLv3_server_data={4:0}, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1168] EXPR s->state [L1168] state = s->state [L1169] EXPR s->state VAL [={0:1}, blastFlag=0, buf={0:7}, got_new_session=0, init=1, ret=-1, s={-4294967298:0}, s={-4294967298:0}, s->state=8464, skip=0, SSLv3_server_data={4:0}, state=8464, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1169] COND FALSE !(s->state == 12292) [L1172] EXPR s->state VAL [={0:1}, blastFlag=0, buf={0:7}, got_new_session=0, init=1, ret=-1, s={-4294967298:0}, s={-4294967298:0}, s->state=8464, skip=0, SSLv3_server_data={4:0}, state=8464, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1172] COND FALSE !(s->state == 16384) [L1175] EXPR s->state VAL [={0:1}, blastFlag=0, buf={0:7}, got_new_session=0, init=1, ret=-1, s={-4294967298:0}, s={-4294967298:0}, s->state=8464, skip=0, SSLv3_server_data={4:0}, state=8464, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1175] COND FALSE !(s->state == 8192) [L1178] EXPR s->state VAL [={0:1}, blastFlag=0, buf={0:7}, got_new_session=0, init=1, ret=-1, s={-4294967298:0}, s={-4294967298:0}, s->state=8464, skip=0, SSLv3_server_data={4:0}, state=8464, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1178] COND FALSE !(s->state == 24576) [L1181] EXPR s->state VAL [={0:1}, blastFlag=0, buf={0:7}, got_new_session=0, init=1, ret=-1, s={-4294967298:0}, s={-4294967298:0}, s->state=8464, skip=0, SSLv3_server_data={4:0}, state=8464, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1181] COND FALSE !(s->state == 8195) [L1184] EXPR s->state VAL [={0:1}, blastFlag=0, buf={0:7}, got_new_session=0, init=1, ret=-1, s={-4294967298:0}, s={-4294967298:0}, s->state=8464, skip=0, SSLv3_server_data={4:0}, state=8464, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1184] COND FALSE !(s->state == 8480) [L1187] EXPR s->state VAL [={0:1}, blastFlag=0, buf={0:7}, got_new_session=0, init=1, ret=-1, s={-4294967298:0}, s={-4294967298:0}, s->state=8464, skip=0, SSLv3_server_data={4:0}, state=8464, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1187] COND FALSE !(s->state == 8481) [L1190] EXPR s->state VAL [={0:1}, blastFlag=0, buf={0:7}, got_new_session=0, init=1, ret=-1, s={-4294967298:0}, s={-4294967298:0}, s->state=8464, skip=0, SSLv3_server_data={4:0}, state=8464, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1190] COND FALSE !(s->state == 8482) [L1193] EXPR s->state VAL [={0:1}, blastFlag=0, buf={0:7}, got_new_session=0, init=1, ret=-1, s={-4294967298:0}, s={-4294967298:0}, s->state=8464, skip=0, SSLv3_server_data={4:0}, state=8464, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1193] COND TRUE s->state == 8464 [L1349] s->shutdown = 0 [L1350] ret = __VERIFIER_nondet_int() [L1351] COND TRUE blastFlag == 0 [L1352] blastFlag = 1 VAL [={0:1}, blastFlag=1, buf={0:7}, got_new_session=0, init=1, ret=1, s={-4294967298:0}, s={-4294967298:0}, skip=0, SSLv3_server_data={4:0}, state=8464, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1356] COND FALSE !(ret <= 0) [L1361] got_new_session = 1 [L1362] s->state = 8496 [L1363] s->init_num = 0 VAL [={0:1}, blastFlag=1, buf={0:7}, got_new_session=1, init=1, ret=1, s={-4294967298:0}, s={-4294967298:0}, skip=0, SSLv3_server_data={4:0}, state=8464, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1696] EXPR s->s3 [L1696] EXPR (s->s3)->tmp.reuse_message VAL [={0:1}, (s->s3)->tmp.reuse_message=4294967303, blastFlag=1, buf={0:7}, got_new_session=1, init=1, ret=1, s={-4294967298:0}, s={-4294967298:0}, s->s3={-4294967294:0}, skip=0, SSLv3_server_data={4:0}, state=8464, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1696] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1725] skip = 0 VAL [={0:1}, blastFlag=1, buf={0:7}, got_new_session=1, init=1, ret=1, s={-4294967298:0}, s={-4294967298:0}, skip=0, SSLv3_server_data={4:0}, state=8464, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1166] COND TRUE 1 VAL [={0:1}, blastFlag=1, buf={0:7}, got_new_session=1, init=1, ret=1, s={-4294967298:0}, s={-4294967298:0}, skip=0, SSLv3_server_data={4:0}, state=8464, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1168] EXPR s->state [L1168] state = s->state [L1169] EXPR s->state VAL [={0:1}, blastFlag=1, buf={0:7}, got_new_session=1, init=1, ret=1, s={-4294967298:0}, s={-4294967298:0}, s->state=8496, skip=0, SSLv3_server_data={4:0}, state=8496, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1169] COND FALSE !(s->state == 12292) [L1172] EXPR s->state VAL [={0:1}, blastFlag=1, buf={0:7}, got_new_session=1, init=1, ret=1, s={-4294967298:0}, s={-4294967298:0}, s->state=8496, skip=0, SSLv3_server_data={4:0}, state=8496, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1172] COND FALSE !(s->state == 16384) [L1175] EXPR s->state VAL [={0:1}, blastFlag=1, buf={0:7}, got_new_session=1, init=1, ret=1, s={-4294967298:0}, s={-4294967298:0}, s->state=8496, skip=0, SSLv3_server_data={4:0}, state=8496, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1175] COND FALSE !(s->state == 8192) [L1178] EXPR s->state VAL [={0:1}, blastFlag=1, buf={0:7}, got_new_session=1, init=1, ret=1, s={-4294967298:0}, s={-4294967298:0}, s->state=8496, skip=0, SSLv3_server_data={4:0}, state=8496, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1178] COND FALSE !(s->state == 24576) [L1181] EXPR s->state VAL [={0:1}, blastFlag=1, buf={0:7}, got_new_session=1, init=1, ret=1, s={-4294967298:0}, s={-4294967298:0}, s->state=8496, skip=0, SSLv3_server_data={4:0}, state=8496, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1181] COND FALSE !(s->state == 8195) [L1184] EXPR s->state VAL [={0:1}, blastFlag=1, buf={0:7}, got_new_session=1, init=1, ret=1, s={-4294967298:0}, s={-4294967298:0}, s->state=8496, skip=0, SSLv3_server_data={4:0}, state=8496, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1184] COND FALSE !(s->state == 8480) [L1187] EXPR s->state VAL [={0:1}, blastFlag=1, buf={0:7}, got_new_session=1, init=1, ret=1, s={-4294967298:0}, s={-4294967298:0}, s->state=8496, skip=0, SSLv3_server_data={4:0}, state=8496, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1187] COND FALSE !(s->state == 8481) [L1190] EXPR s->state VAL [={0:1}, blastFlag=1, buf={0:7}, got_new_session=1, init=1, ret=1, s={-4294967298:0}, s={-4294967298:0}, s->state=8496, skip=0, SSLv3_server_data={4:0}, state=8496, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1190] COND FALSE !(s->state == 8482) [L1193] EXPR s->state VAL [={0:1}, blastFlag=1, buf={0:7}, got_new_session=1, init=1, ret=1, s={-4294967298:0}, s={-4294967298:0}, s->state=8496, skip=0, SSLv3_server_data={4:0}, state=8496, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1193] COND FALSE !(s->state == 8464) [L1196] EXPR s->state VAL [={0:1}, blastFlag=1, buf={0:7}, got_new_session=1, init=1, ret=1, s={-4294967298:0}, s={-4294967298:0}, s->state=8496, skip=0, SSLv3_server_data={4:0}, state=8496, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1196] COND FALSE !(s->state == 8465) [L1199] EXPR s->state VAL [={0:1}, blastFlag=1, buf={0:7}, got_new_session=1, init=1, ret=1, s={-4294967298:0}, s={-4294967298:0}, s->state=8496, skip=0, SSLv3_server_data={4:0}, state=8496, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1199] COND FALSE !(s->state == 8466) [L1202] EXPR s->state VAL [={0:1}, blastFlag=1, buf={0:7}, got_new_session=1, init=1, ret=1, s={-4294967298:0}, s={-4294967298:0}, s->state=8496, skip=0, SSLv3_server_data={4:0}, state=8496, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1202] COND TRUE s->state == 8496 [L1367] ret = __VERIFIER_nondet_int() [L1368] COND TRUE blastFlag == 1 [L1369] blastFlag = 2 VAL [={0:1}, blastFlag=2, buf={0:7}, got_new_session=1, init=1, ret=1, s={-4294967298:0}, s={-4294967298:0}, skip=0, SSLv3_server_data={4:0}, state=8496, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1373] COND FALSE !(ret <= 0) [L1378] s->hit VAL [={0:1}, blastFlag=2, buf={0:7}, got_new_session=1, init=1, ret=1, s={-4294967298:0}, s={-4294967298:0}, s->hit=8, skip=0, SSLv3_server_data={4:0}, state=8496, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1378] COND TRUE s->hit [L1379] s->state = 8656 VAL [={0:1}, blastFlag=2, buf={0:7}, got_new_session=1, init=1, ret=1, s={-4294967298:0}, s={-4294967298:0}, skip=0, SSLv3_server_data={4:0}, state=8496, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1383] s->init_num = 0 VAL [={0:1}, blastFlag=2, buf={0:7}, got_new_session=1, init=1, ret=1, s={-4294967298:0}, s={-4294967298:0}, skip=0, SSLv3_server_data={4:0}, state=8496, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1696] EXPR s->s3 [L1696] EXPR (s->s3)->tmp.reuse_message VAL [={0:1}, (s->s3)->tmp.reuse_message=4294967303, blastFlag=2, buf={0:7}, got_new_session=1, init=1, ret=1, s={-4294967298:0}, s={-4294967298:0}, s->s3={-4294967294:0}, skip=0, SSLv3_server_data={4:0}, state=8496, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1696] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1725] skip = 0 VAL [={0:1}, blastFlag=2, buf={0:7}, got_new_session=1, init=1, ret=1, s={-4294967298:0}, s={-4294967298:0}, skip=0, SSLv3_server_data={4:0}, state=8496, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1166] COND TRUE 1 VAL [={0:1}, blastFlag=2, buf={0:7}, got_new_session=1, init=1, ret=1, s={-4294967298:0}, s={-4294967298:0}, skip=0, SSLv3_server_data={4:0}, state=8496, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1168] EXPR s->state [L1168] state = s->state [L1169] EXPR s->state VAL [={0:1}, blastFlag=2, buf={0:7}, got_new_session=1, init=1, ret=1, s={-4294967298:0}, s={-4294967298:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1169] COND FALSE !(s->state == 12292) [L1172] EXPR s->state VAL [={0:1}, blastFlag=2, buf={0:7}, got_new_session=1, init=1, ret=1, s={-4294967298:0}, s={-4294967298:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1172] COND FALSE !(s->state == 16384) [L1175] EXPR s->state VAL [={0:1}, blastFlag=2, buf={0:7}, got_new_session=1, init=1, ret=1, s={-4294967298:0}, s={-4294967298:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1175] COND FALSE !(s->state == 8192) [L1178] EXPR s->state VAL [={0:1}, blastFlag=2, buf={0:7}, got_new_session=1, init=1, ret=1, s={-4294967298:0}, s={-4294967298:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1178] COND FALSE !(s->state == 24576) [L1181] EXPR s->state VAL [={0:1}, blastFlag=2, buf={0:7}, got_new_session=1, init=1, ret=1, s={-4294967298:0}, s={-4294967298:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1181] COND FALSE !(s->state == 8195) [L1184] EXPR s->state VAL [={0:1}, blastFlag=2, buf={0:7}, got_new_session=1, init=1, ret=1, s={-4294967298:0}, s={-4294967298:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1184] COND FALSE !(s->state == 8480) [L1187] EXPR s->state VAL [={0:1}, blastFlag=2, buf={0:7}, got_new_session=1, init=1, ret=1, s={-4294967298:0}, s={-4294967298:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1187] COND FALSE !(s->state == 8481) [L1190] EXPR s->state VAL [={0:1}, blastFlag=2, buf={0:7}, got_new_session=1, init=1, ret=1, s={-4294967298:0}, s={-4294967298:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1190] COND FALSE !(s->state == 8482) [L1193] EXPR s->state VAL [={0:1}, blastFlag=2, buf={0:7}, got_new_session=1, init=1, ret=1, s={-4294967298:0}, s={-4294967298:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1193] COND FALSE !(s->state == 8464) [L1196] EXPR s->state VAL [={0:1}, blastFlag=2, buf={0:7}, got_new_session=1, init=1, ret=1, s={-4294967298:0}, s={-4294967298:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1196] COND FALSE !(s->state == 8465) [L1199] EXPR s->state VAL [={0:1}, blastFlag=2, buf={0:7}, got_new_session=1, init=1, ret=1, s={-4294967298:0}, s={-4294967298:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1199] COND FALSE !(s->state == 8466) [L1202] EXPR s->state VAL [={0:1}, blastFlag=2, buf={0:7}, got_new_session=1, init=1, ret=1, s={-4294967298:0}, s={-4294967298:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1202] COND FALSE !(s->state == 8496) [L1205] EXPR s->state VAL [={0:1}, blastFlag=2, buf={0:7}, got_new_session=1, init=1, ret=1, s={-4294967298:0}, s={-4294967298:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1205] COND FALSE !(s->state == 8497) [L1208] EXPR s->state VAL [={0:1}, blastFlag=2, buf={0:7}, got_new_session=1, init=1, ret=1, s={-4294967298:0}, s={-4294967298:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1208] COND FALSE !(s->state == 8512) [L1211] EXPR s->state VAL [={0:1}, blastFlag=2, buf={0:7}, got_new_session=1, init=1, ret=1, s={-4294967298:0}, s={-4294967298:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1211] COND FALSE !(s->state == 8513) [L1214] EXPR s->state VAL [={0:1}, blastFlag=2, buf={0:7}, got_new_session=1, init=1, ret=1, s={-4294967298:0}, s={-4294967298:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1214] COND FALSE !(s->state == 8528) [L1217] EXPR s->state VAL [={0:1}, blastFlag=2, buf={0:7}, got_new_session=1, init=1, ret=1, s={-4294967298:0}, s={-4294967298:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1217] COND FALSE !(s->state == 8529) [L1220] EXPR s->state VAL [={0:1}, blastFlag=2, buf={0:7}, got_new_session=1, init=1, ret=1, s={-4294967298:0}, s={-4294967298:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1220] COND FALSE !(s->state == 8544) [L1223] EXPR s->state VAL [={0:1}, blastFlag=2, buf={0:7}, got_new_session=1, init=1, ret=1, s={-4294967298:0}, s={-4294967298:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1223] COND FALSE !(s->state == 8545) [L1226] EXPR s->state VAL [={0:1}, blastFlag=2, buf={0:7}, got_new_session=1, init=1, ret=1, s={-4294967298:0}, s={-4294967298:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1226] COND FALSE !(s->state == 8560) [L1229] EXPR s->state VAL [={0:1}, blastFlag=2, buf={0:7}, got_new_session=1, init=1, ret=1, s={-4294967298:0}, s={-4294967298:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1229] COND FALSE !(s->state == 8561) [L1232] EXPR s->state VAL [={0:1}, blastFlag=2, buf={0:7}, got_new_session=1, init=1, ret=1, s={-4294967298:0}, s={-4294967298:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1232] COND FALSE !(s->state == 8448) [L1235] EXPR s->state VAL [={0:1}, blastFlag=2, buf={0:7}, got_new_session=1, init=1, ret=1, s={-4294967298:0}, s={-4294967298:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1235] COND FALSE !(s->state == 8576) [L1238] EXPR s->state VAL [={0:1}, blastFlag=2, buf={0:7}, got_new_session=1, init=1, ret=1, s={-4294967298:0}, s={-4294967298:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1238] COND FALSE !(s->state == 8577) [L1241] EXPR s->state VAL [={0:1}, blastFlag=2, buf={0:7}, got_new_session=1, init=1, ret=1, s={-4294967298:0}, s={-4294967298:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1241] COND FALSE !(s->state == 8592) [L1244] EXPR s->state VAL [={0:1}, blastFlag=2, buf={0:7}, got_new_session=1, init=1, ret=1, s={-4294967298:0}, s={-4294967298:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1244] COND FALSE !(s->state == 8593) [L1247] EXPR s->state VAL [={0:1}, blastFlag=2, buf={0:7}, got_new_session=1, init=1, ret=1, s={-4294967298:0}, s={-4294967298:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1247] COND FALSE !(s->state == 8608) [L1250] EXPR s->state VAL [={0:1}, blastFlag=2, buf={0:7}, got_new_session=1, init=1, ret=1, s={-4294967298:0}, s={-4294967298:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1250] COND FALSE !(s->state == 8609) [L1253] EXPR s->state VAL [={0:1}, blastFlag=2, buf={0:7}, got_new_session=1, init=1, ret=1, s={-4294967298:0}, s={-4294967298:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1253] COND FALSE !(s->state == 8640) [L1256] EXPR s->state VAL [={0:1}, blastFlag=2, buf={0:7}, got_new_session=1, init=1, ret=1, s={-4294967298:0}, s={-4294967298:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1256] COND FALSE !(s->state == 8641) [L1259] EXPR s->state VAL [={0:1}, blastFlag=2, buf={0:7}, got_new_session=1, init=1, ret=1, s={-4294967298:0}, s={-4294967298:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0] [L1259] COND TRUE s->state == 8656 [L1583] EXPR s->session [L1583] EXPR s->s3 [L1583] EXPR (s->s3)->tmp.new_cipher [L1583] (s->session)->cipher = (s->s3)->tmp.new_cipher [L1584] tmp___9 = __VERIFIER_nondet_int() [L1585] COND FALSE !(! tmp___9) [L1591] ret = __VERIFIER_nondet_int() [L1592] COND TRUE blastFlag == 2 [L1593] blastFlag = 5 VAL [={0:1}, blastFlag=5, buf={0:7}, got_new_session=1, init=1, ret=14, s={-4294967298:0}, s={-4294967298:0}, skip=0, SSLv3_server_data={4:0}, state=8656, Time=0, tmp=0, tmp___1=0, tmp___2=0, tmp___8=0, tmp___9=11] [L1597] COND FALSE !(ret <= 0) [L1602] s->state = 8672 [L1603] s->init_num = 0 [L1604] tmp___10 = __VERIFIER_nondet_int() [L1605] COND FALSE !(! tmp___10) VAL [={0:1}, blastFlag=5, buf={0:7}, got_new_session=1, init=1, ret=14, s={-4294967298:0}, s={-4294967298:0}, skip=0, SSLv3_server_data={4:0}, state=8656, Time=0, tmp=0, tmp___1=0, tmp___10=1, tmp___2=0, tmp___8=0, tmp___9=11] [L1696] EXPR s->s3 [L1696] EXPR (s->s3)->tmp.reuse_message VAL [={0:1}, (s->s3)->tmp.reuse_message=4294967303, blastFlag=5, buf={0:7}, got_new_session=1, init=1, ret=14, s={-4294967298:0}, s={-4294967298:0}, s->s3={-4294967294:0}, skip=0, SSLv3_server_data={4:0}, state=8656, Time=0, tmp=0, tmp___1=0, tmp___10=1, tmp___2=0, tmp___8=0, tmp___9=11] [L1696] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1725] skip = 0 VAL [={0:1}, blastFlag=5, buf={0:7}, got_new_session=1, init=1, ret=14, s={-4294967298:0}, s={-4294967298:0}, skip=0, SSLv3_server_data={4:0}, state=8656, Time=0, tmp=0, tmp___1=0, tmp___10=1, tmp___2=0, tmp___8=0, tmp___9=11] [L1166] COND TRUE 1 VAL [={0:1}, blastFlag=5, buf={0:7}, got_new_session=1, init=1, ret=14, s={-4294967298:0}, s={-4294967298:0}, skip=0, SSLv3_server_data={4:0}, state=8656, Time=0, tmp=0, tmp___1=0, tmp___10=1, tmp___2=0, tmp___8=0, tmp___9=11] [L1168] EXPR s->state [L1168] state = s->state [L1169] EXPR s->state VAL [={0:1}, blastFlag=5, buf={0:7}, got_new_session=1, init=1, ret=14, s={-4294967298:0}, s={-4294967298:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=0, tmp=0, tmp___1=0, tmp___10=1, tmp___2=0, tmp___8=0, tmp___9=11] [L1169] COND FALSE !(s->state == 12292) [L1172] EXPR s->state VAL [={0:1}, blastFlag=5, buf={0:7}, got_new_session=1, init=1, ret=14, s={-4294967298:0}, s={-4294967298:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=0, tmp=0, tmp___1=0, tmp___10=1, tmp___2=0, tmp___8=0, tmp___9=11] [L1172] COND FALSE !(s->state == 16384) [L1175] EXPR s->state VAL [={0:1}, blastFlag=5, buf={0:7}, got_new_session=1, init=1, ret=14, s={-4294967298:0}, s={-4294967298:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=0, tmp=0, tmp___1=0, tmp___10=1, tmp___2=0, tmp___8=0, tmp___9=11] [L1175] COND FALSE !(s->state == 8192) [L1178] EXPR s->state VAL [={0:1}, blastFlag=5, buf={0:7}, got_new_session=1, init=1, ret=14, s={-4294967298:0}, s={-4294967298:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=0, tmp=0, tmp___1=0, tmp___10=1, tmp___2=0, tmp___8=0, tmp___9=11] [L1178] COND FALSE !(s->state == 24576) [L1181] EXPR s->state VAL [={0:1}, blastFlag=5, buf={0:7}, got_new_session=1, init=1, ret=14, s={-4294967298:0}, s={-4294967298:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=0, tmp=0, tmp___1=0, tmp___10=1, tmp___2=0, tmp___8=0, tmp___9=11] [L1181] COND FALSE !(s->state == 8195) [L1184] EXPR s->state VAL [={0:1}, blastFlag=5, buf={0:7}, got_new_session=1, init=1, ret=14, s={-4294967298:0}, s={-4294967298:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=0, tmp=0, tmp___1=0, tmp___10=1, tmp___2=0, tmp___8=0, tmp___9=11] [L1184] COND FALSE !(s->state == 8480) [L1187] EXPR s->state VAL [={0:1}, blastFlag=5, buf={0:7}, got_new_session=1, init=1, ret=14, s={-4294967298:0}, s={-4294967298:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=0, tmp=0, tmp___1=0, tmp___10=1, tmp___2=0, tmp___8=0, tmp___9=11] [L1187] COND FALSE !(s->state == 8481) [L1190] EXPR s->state VAL [={0:1}, blastFlag=5, buf={0:7}, got_new_session=1, init=1, ret=14, s={-4294967298:0}, s={-4294967298:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=0, tmp=0, tmp___1=0, tmp___10=1, tmp___2=0, tmp___8=0, tmp___9=11] [L1190] COND FALSE !(s->state == 8482) [L1193] EXPR s->state VAL [={0:1}, blastFlag=5, buf={0:7}, got_new_session=1, init=1, ret=14, s={-4294967298:0}, s={-4294967298:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=0, tmp=0, tmp___1=0, tmp___10=1, tmp___2=0, tmp___8=0, tmp___9=11] [L1193] COND FALSE !(s->state == 8464) [L1196] EXPR s->state VAL [={0:1}, blastFlag=5, buf={0:7}, got_new_session=1, init=1, ret=14, s={-4294967298:0}, s={-4294967298:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=0, tmp=0, tmp___1=0, tmp___10=1, tmp___2=0, tmp___8=0, tmp___9=11] [L1196] COND FALSE !(s->state == 8465) [L1199] EXPR s->state VAL [={0:1}, blastFlag=5, buf={0:7}, got_new_session=1, init=1, ret=14, s={-4294967298:0}, s={-4294967298:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=0, tmp=0, tmp___1=0, tmp___10=1, tmp___2=0, tmp___8=0, tmp___9=11] [L1199] COND FALSE !(s->state == 8466) [L1202] EXPR s->state VAL [={0:1}, blastFlag=5, buf={0:7}, got_new_session=1, init=1, ret=14, s={-4294967298:0}, s={-4294967298:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=0, tmp=0, tmp___1=0, tmp___10=1, tmp___2=0, tmp___8=0, tmp___9=11] [L1202] COND FALSE !(s->state == 8496) [L1205] EXPR s->state VAL [={0:1}, blastFlag=5, buf={0:7}, got_new_session=1, init=1, ret=14, s={-4294967298:0}, s={-4294967298:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=0, tmp=0, tmp___1=0, tmp___10=1, tmp___2=0, tmp___8=0, tmp___9=11] [L1205] COND FALSE !(s->state == 8497) [L1208] EXPR s->state VAL [={0:1}, blastFlag=5, buf={0:7}, got_new_session=1, init=1, ret=14, s={-4294967298:0}, s={-4294967298:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=0, tmp=0, tmp___1=0, tmp___10=1, tmp___2=0, tmp___8=0, tmp___9=11] [L1208] COND FALSE !(s->state == 8512) [L1211] EXPR s->state VAL [={0:1}, blastFlag=5, buf={0:7}, got_new_session=1, init=1, ret=14, s={-4294967298:0}, s={-4294967298:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=0, tmp=0, tmp___1=0, tmp___10=1, tmp___2=0, tmp___8=0, tmp___9=11] [L1211] COND FALSE !(s->state == 8513) [L1214] EXPR s->state VAL [={0:1}, blastFlag=5, buf={0:7}, got_new_session=1, init=1, ret=14, s={-4294967298:0}, s={-4294967298:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=0, tmp=0, tmp___1=0, tmp___10=1, tmp___2=0, tmp___8=0, tmp___9=11] [L1214] COND FALSE !(s->state == 8528) [L1217] EXPR s->state VAL [={0:1}, blastFlag=5, buf={0:7}, got_new_session=1, init=1, ret=14, s={-4294967298:0}, s={-4294967298:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=0, tmp=0, tmp___1=0, tmp___10=1, tmp___2=0, tmp___8=0, tmp___9=11] [L1217] COND FALSE !(s->state == 8529) [L1220] EXPR s->state VAL [={0:1}, blastFlag=5, buf={0:7}, got_new_session=1, init=1, ret=14, s={-4294967298:0}, s={-4294967298:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=0, tmp=0, tmp___1=0, tmp___10=1, tmp___2=0, tmp___8=0, tmp___9=11] [L1220] COND FALSE !(s->state == 8544) [L1223] EXPR s->state VAL [={0:1}, blastFlag=5, buf={0:7}, got_new_session=1, init=1, ret=14, s={-4294967298:0}, s={-4294967298:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=0, tmp=0, tmp___1=0, tmp___10=1, tmp___2=0, tmp___8=0, tmp___9=11] [L1223] COND FALSE !(s->state == 8545) [L1226] EXPR s->state VAL [={0:1}, blastFlag=5, buf={0:7}, got_new_session=1, init=1, ret=14, s={-4294967298:0}, s={-4294967298:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=0, tmp=0, tmp___1=0, tmp___10=1, tmp___2=0, tmp___8=0, tmp___9=11] [L1226] COND FALSE !(s->state == 8560) [L1229] EXPR s->state VAL [={0:1}, blastFlag=5, buf={0:7}, got_new_session=1, init=1, ret=14, s={-4294967298:0}, s={-4294967298:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=0, tmp=0, tmp___1=0, tmp___10=1, tmp___2=0, tmp___8=0, tmp___9=11] [L1229] COND FALSE !(s->state == 8561) [L1232] EXPR s->state VAL [={0:1}, blastFlag=5, buf={0:7}, got_new_session=1, init=1, ret=14, s={-4294967298:0}, s={-4294967298:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=0, tmp=0, tmp___1=0, tmp___10=1, tmp___2=0, tmp___8=0, tmp___9=11] [L1232] COND FALSE !(s->state == 8448) [L1235] EXPR s->state VAL [={0:1}, blastFlag=5, buf={0:7}, got_new_session=1, init=1, ret=14, s={-4294967298:0}, s={-4294967298:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=0, tmp=0, tmp___1=0, tmp___10=1, tmp___2=0, tmp___8=0, tmp___9=11] [L1235] COND FALSE !(s->state == 8576) [L1238] EXPR s->state VAL [={0:1}, blastFlag=5, buf={0:7}, got_new_session=1, init=1, ret=14, s={-4294967298:0}, s={-4294967298:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=0, tmp=0, tmp___1=0, tmp___10=1, tmp___2=0, tmp___8=0, tmp___9=11] [L1238] COND FALSE !(s->state == 8577) [L1241] EXPR s->state VAL [={0:1}, blastFlag=5, buf={0:7}, got_new_session=1, init=1, ret=14, s={-4294967298:0}, s={-4294967298:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=0, tmp=0, tmp___1=0, tmp___10=1, tmp___2=0, tmp___8=0, tmp___9=11] [L1241] COND FALSE !(s->state == 8592) [L1244] EXPR s->state VAL [={0:1}, blastFlag=5, buf={0:7}, got_new_session=1, init=1, ret=14, s={-4294967298:0}, s={-4294967298:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=0, tmp=0, tmp___1=0, tmp___10=1, tmp___2=0, tmp___8=0, tmp___9=11] [L1244] COND FALSE !(s->state == 8593) [L1247] EXPR s->state VAL [={0:1}, blastFlag=5, buf={0:7}, got_new_session=1, init=1, ret=14, s={-4294967298:0}, s={-4294967298:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=0, tmp=0, tmp___1=0, tmp___10=1, tmp___2=0, tmp___8=0, tmp___9=11] [L1247] COND FALSE !(s->state == 8608) [L1250] EXPR s->state VAL [={0:1}, blastFlag=5, buf={0:7}, got_new_session=1, init=1, ret=14, s={-4294967298:0}, s={-4294967298:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=0, tmp=0, tmp___1=0, tmp___10=1, tmp___2=0, tmp___8=0, tmp___9=11] [L1250] COND FALSE !(s->state == 8609) [L1253] EXPR s->state VAL [={0:1}, blastFlag=5, buf={0:7}, got_new_session=1, init=1, ret=14, s={-4294967298:0}, s={-4294967298:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=0, tmp=0, tmp___1=0, tmp___10=1, tmp___2=0, tmp___8=0, tmp___9=11] [L1253] COND FALSE !(s->state == 8640) [L1256] EXPR s->state VAL [={0:1}, blastFlag=5, buf={0:7}, got_new_session=1, init=1, ret=14, s={-4294967298:0}, s={-4294967298:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=0, tmp=0, tmp___1=0, tmp___10=1, tmp___2=0, tmp___8=0, tmp___9=11] [L1256] COND FALSE !(s->state == 8641) [L1259] EXPR s->state VAL [={0:1}, blastFlag=5, buf={0:7}, got_new_session=1, init=1, ret=14, s={-4294967298:0}, s={-4294967298:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=0, tmp=0, tmp___1=0, tmp___10=1, tmp___2=0, tmp___8=0, tmp___9=11] [L1259] COND FALSE !(s->state == 8656) [L1262] EXPR s->state VAL [={0:1}, blastFlag=5, buf={0:7}, got_new_session=1, init=1, ret=14, s={-4294967298:0}, s={-4294967298:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=0, tmp=0, tmp___1=0, tmp___10=1, tmp___2=0, tmp___8=0, tmp___9=11] [L1262] COND FALSE !(s->state == 8657) [L1265] EXPR s->state VAL [={0:1}, blastFlag=5, buf={0:7}, got_new_session=1, init=1, ret=14, s={-4294967298:0}, s={-4294967298:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=0, tmp=0, tmp___1=0, tmp___10=1, tmp___2=0, tmp___8=0, tmp___9=11] [L1265] COND TRUE s->state == 8672 [L1614] ret = __VERIFIER_nondet_int() [L1615] COND FALSE !(blastFlag == 4) VAL [={0:1}, blastFlag=5, buf={0:7}, got_new_session=1, init=1, ret=-13, s={-4294967298:0}, s={-4294967298:0}, skip=0, SSLv3_server_data={4:0}, state=8672, Time=0, tmp=0, tmp___1=0, tmp___10=1, tmp___2=0, tmp___8=0, tmp___9=11] [L1618] COND TRUE blastFlag == 5 VAL [={0:1}, blastFlag=5, buf={0:7}, got_new_session=1, init=1, ret=-13, s={-4294967298:0}, s={-4294967298:0}, skip=0, SSLv3_server_data={4:0}, state=8672, Time=0, tmp=0, tmp___1=0, tmp___10=1, tmp___2=0, tmp___8=0, tmp___9=11] [L1737] reach_error() VAL [={0:1}, blastFlag=5, buf={0:7}, got_new_session=1, init=1, ret=-13, s={-4294967298:0}, s={-4294967298:0}, skip=0, SSLv3_server_data={4:0}, state=8672, Time=0, tmp=0, tmp___1=0, tmp___10=1, tmp___2=0, tmp___8=0, tmp___9=11] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 147 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 97.8s, OverallIterations: 42, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 92.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 39 mSolverCounterUnknown, 2141 SdHoareTripleChecker+Valid, 90.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2141 mSDsluCounter, 19918 SdHoareTripleChecker+Invalid, 87.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 11719 mSDsCounter, 342 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6840 IncrementalHoareTripleChecker+Invalid, 7221 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 342 mSolverCounterUnsat, 8199 mSDtfsCounter, 6840 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 230 GetRequests, 83 SyntacticMatches, 28 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=512occurred in iteration=39, InterpolantAutomatonStates: 164, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 41 MinimizatonAttempts, 868 StatesRemovedByMinimization, 36 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 3750 NumberOfCodeBlocks, 3750 NumberOfCodeBlocksAsserted, 42 NumberOfCheckSat, 3581 ConstructedInterpolants, 0 QuantifiedInterpolants, 9484 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 41 InterpolantComputations, 41 PerfectInterpolantSequences, 1856/1856 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-20 06:26:32,567 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03000cb0-5f76-4d74-81d4-d6c7630f9dee/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03000cb0-5f76-4d74-81d4-d6c7630f9dee/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03000cb0-5f76-4d74-81d4-d6c7630f9dee/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03000cb0-5f76-4d74-81d4-d6c7630f9dee/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03000cb0-5f76-4d74-81d4-d6c7630f9dee/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/openssl/s3_srvr.blast.01.i.cil-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03000cb0-5f76-4d74-81d4-d6c7630f9dee/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03000cb0-5f76-4d74-81d4-d6c7630f9dee/bin/uautomizer-DQz5hQGWxF --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 32bit --witnessprinter.graph.data.programhash a1fff1f2750aedbe7119b44ad3cdc8a2dbfa05ad8147a422ae9aeb0054d6e253 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 06:26:35,113 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 06:26:35,115 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 06:26:35,149 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 06:26:35,150 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 06:26:35,152 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 06:26:35,153 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 06:26:35,156 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 06:26:35,159 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 06:26:35,160 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 06:26:35,161 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 06:26:35,163 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 06:26:35,164 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 06:26:35,165 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 06:26:35,167 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 06:26:35,169 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 06:26:35,170 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 06:26:35,171 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 06:26:35,173 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 06:26:35,176 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 06:26:35,179 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 06:26:35,180 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 06:26:35,182 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 06:26:35,183 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 06:26:35,187 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 06:26:35,188 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 06:26:35,188 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 06:26:35,189 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 06:26:35,190 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 06:26:35,191 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 06:26:35,192 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 06:26:35,193 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 06:26:35,194 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 06:26:35,195 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 06:26:35,197 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 06:26:35,197 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 06:26:35,198 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 06:26:35,199 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 06:26:35,199 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 06:26:35,201 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 06:26:35,201 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 06:26:35,203 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03000cb0-5f76-4d74-81d4-d6c7630f9dee/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-11-20 06:26:35,258 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 06:26:35,259 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 06:26:35,259 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 06:26:35,259 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 06:26:35,260 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 06:26:35,260 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 06:26:35,261 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 06:26:35,261 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 06:26:35,262 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 06:26:35,262 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 06:26:35,268 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 06:26:35,268 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 06:26:35,268 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 06:26:35,269 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 06:26:35,269 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 06:26:35,269 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 06:26:35,269 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-20 06:26:35,270 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-20 06:26:35,270 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-20 06:26:35,270 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 06:26:35,270 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 06:26:35,271 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 06:26:35,271 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 06:26:35,272 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 06:26:35,272 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 06:26:35,272 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 06:26:35,272 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 06:26:35,273 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 06:26:35,273 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 06:26:35,273 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 06:26:35,273 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-20 06:26:35,274 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-20 06:26:35,274 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-20 06:26:35,274 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-20 06:26:35,275 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 06:26:35,275 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 06:26:35,275 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-20 06:26:35,276 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_03000cb0-5f76-4d74-81d4-d6c7630f9dee/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03000cb0-5f76-4d74-81d4-d6c7630f9dee/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a1fff1f2750aedbe7119b44ad3cdc8a2dbfa05ad8147a422ae9aeb0054d6e253 [2021-11-20 06:26:35,696 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 06:26:35,729 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 06:26:35,733 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 06:26:35,735 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 06:26:35,735 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 06:26:35,738 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03000cb0-5f76-4d74-81d4-d6c7630f9dee/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/openssl/s3_srvr.blast.01.i.cil-2.c [2021-11-20 06:26:35,824 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03000cb0-5f76-4d74-81d4-d6c7630f9dee/bin/uautomizer-DQz5hQGWxF/data/8df927696/ef9e8af8d6a5453a833ac6b3137fba20/FLAG305db90d6 [2021-11-20 06:26:36,528 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 06:26:36,529 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03000cb0-5f76-4d74-81d4-d6c7630f9dee/sv-benchmarks/c/openssl/s3_srvr.blast.01.i.cil-2.c [2021-11-20 06:26:36,559 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03000cb0-5f76-4d74-81d4-d6c7630f9dee/bin/uautomizer-DQz5hQGWxF/data/8df927696/ef9e8af8d6a5453a833ac6b3137fba20/FLAG305db90d6 [2021-11-20 06:26:36,677 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03000cb0-5f76-4d74-81d4-d6c7630f9dee/bin/uautomizer-DQz5hQGWxF/data/8df927696/ef9e8af8d6a5453a833ac6b3137fba20 [2021-11-20 06:26:36,682 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 06:26:36,684 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 06:26:36,687 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 06:26:36,687 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 06:26:36,695 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 06:26:36,696 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:26:36" (1/1) ... [2021-11-20 06:26:36,699 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15164da2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:26:36, skipping insertion in model container [2021-11-20 06:26:36,700 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:26:36" (1/1) ... [2021-11-20 06:26:36,708 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 06:26:36,770 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 06:26:37,187 WARN L230 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_03000cb0-5f76-4d74-81d4-d6c7630f9dee/sv-benchmarks/c/openssl/s3_srvr.blast.01.i.cil-2.c[72913,72926] [2021-11-20 06:26:37,207 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:26:37,245 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-20 06:26:37,258 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 06:26:37,441 WARN L230 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_03000cb0-5f76-4d74-81d4-d6c7630f9dee/sv-benchmarks/c/openssl/s3_srvr.blast.01.i.cil-2.c[72913,72926] [2021-11-20 06:26:37,445 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:26:37,453 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 06:26:37,567 WARN L230 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_03000cb0-5f76-4d74-81d4-d6c7630f9dee/sv-benchmarks/c/openssl/s3_srvr.blast.01.i.cil-2.c[72913,72926] [2021-11-20 06:26:37,584 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:26:37,612 INFO L208 MainTranslator]: Completed translation [2021-11-20 06:26:37,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:26:37 WrapperNode [2021-11-20 06:26:37,613 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 06:26:37,614 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 06:26:37,614 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 06:26:37,614 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 06:26:37,622 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:26:37" (1/1) ... [2021-11-20 06:26:37,690 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:26:37" (1/1) ... [2021-11-20 06:26:37,766 INFO L137 Inliner]: procedures = 35, calls = 223, calls flagged for inlining = 7, calls inlined = 3, statements flattened = 757 [2021-11-20 06:26:37,767 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 06:26:37,768 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 06:26:37,768 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 06:26:37,769 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 06:26:37,776 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:26:37" (1/1) ... [2021-11-20 06:26:37,777 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:26:37" (1/1) ... [2021-11-20 06:26:37,787 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:26:37" (1/1) ... [2021-11-20 06:26:37,787 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:26:37" (1/1) ... [2021-11-20 06:26:37,828 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:26:37" (1/1) ... [2021-11-20 06:26:37,850 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:26:37" (1/1) ... [2021-11-20 06:26:37,854 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:26:37" (1/1) ... [2021-11-20 06:26:37,860 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 06:26:37,861 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 06:26:37,861 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 06:26:37,862 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 06:26:37,863 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:26:37" (1/1) ... [2021-11-20 06:26:37,870 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 06:26:37,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03000cb0-5f76-4d74-81d4-d6c7630f9dee/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:26:37,895 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03000cb0-5f76-4d74-81d4-d6c7630f9dee/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 06:26:37,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03000cb0-5f76-4d74-81d4-d6c7630f9dee/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 06:26:37,939 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 06:26:37,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-20 06:26:37,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-20 06:26:37,940 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-20 06:26:37,940 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-20 06:26:37,940 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-20 06:26:37,941 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 06:26:37,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 06:26:37,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-20 06:26:38,096 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 06:26:38,098 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 06:26:38,122 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-20 06:26:47,884 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2021-11-20 06:26:47,884 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2021-11-20 06:26:47,884 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 06:26:47,893 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 06:26:47,894 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-20 06:26:47,896 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:26:47 BoogieIcfgContainer [2021-11-20 06:26:47,896 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 06:26:47,898 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 06:26:47,899 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 06:26:47,902 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 06:26:47,902 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 06:26:36" (1/3) ... [2021-11-20 06:26:47,903 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9b3106a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:26:47, skipping insertion in model container [2021-11-20 06:26:47,903 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:26:37" (2/3) ... [2021-11-20 06:26:47,903 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9b3106a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:26:47, skipping insertion in model container [2021-11-20 06:26:47,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:26:47" (3/3) ... [2021-11-20 06:26:47,905 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.01.i.cil-2.c [2021-11-20 06:26:47,911 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 06:26:47,912 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 06:26:47,964 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 06:26:47,972 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 [2021-11-20 06:26:47,972 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-20 06:26:47,997 INFO L276 IsEmpty]: Start isEmpty. Operand has 147 states, 145 states have (on average 1.696551724137931) internal successors, (246), 146 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:26:48,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-20 06:26:48,007 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:26:48,008 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:26:48,009 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:26:48,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:26:48,023 INFO L85 PathProgramCache]: Analyzing trace with hash 1430116946, now seen corresponding path program 1 times [2021-11-20 06:26:48,040 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 06:26:48,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [389736021] [2021-11-20 06:26:48,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:26:48,042 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 06:26:48,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03000cb0-5f76-4d74-81d4-d6c7630f9dee/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 06:26:48,045 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03000cb0-5f76-4d74-81d4-d6c7630f9dee/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 06:26:48,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03000cb0-5f76-4d74-81d4-d6c7630f9dee/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-20 06:26:48,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:26:48,345 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 06:26:48,355 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:26:48,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:26:48,724 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:26:49,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:26:49,048 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 06:26:49,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [389736021] [2021-11-20 06:26:49,051 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [389736021] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 06:26:49,052 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:26:49,052 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-20 06:26:49,058 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348828581] [2021-11-20 06:26:49,062 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 06:26:49,068 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 06:26:49,069 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 06:26:49,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 06:26:49,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-20 06:26:49,114 INFO L87 Difference]: Start difference. First operand has 147 states, 145 states have (on average 1.696551724137931) internal successors, (246), 146 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:26:49,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:26:49,289 INFO L93 Difference]: Finished difference Result 551 states and 928 transitions. [2021-11-20 06:26:49,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 06:26:49,292 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2021-11-20 06:26:49,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:26:49,310 INFO L225 Difference]: With dead ends: 551 [2021-11-20 06:26:49,310 INFO L226 Difference]: Without dead ends: 375 [2021-11-20 06:26:49,315 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-20 06:26:49,319 INFO L933 BasicCegarLoop]: 232 mSDtfsCounter, 561 mSDsluCounter, 431 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 561 SdHoareTripleChecker+Valid, 663 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 06:26:49,320 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [561 Valid, 663 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 06:26:49,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2021-11-20 06:26:49,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 373. [2021-11-20 06:26:49,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 372 states have (on average 1.5188172043010753) internal successors, (565), 372 states have internal predecessors, (565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:26:49,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 565 transitions. [2021-11-20 06:26:49,397 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 565 transitions. Word has length 47 [2021-11-20 06:26:49,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:26:49,398 INFO L470 AbstractCegarLoop]: Abstraction has 373 states and 565 transitions. [2021-11-20 06:26:49,398 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:26:49,398 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 565 transitions. [2021-11-20 06:26:49,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-20 06:26:49,403 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:26:49,403 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-20 06:26:49,423 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03000cb0-5f76-4d74-81d4-d6c7630f9dee/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-20 06:26:49,604 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03000cb0-5f76-4d74-81d4-d6c7630f9dee/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 06:26:49,604 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:26:49,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:26:49,605 INFO L85 PathProgramCache]: Analyzing trace with hash 315021975, now seen corresponding path program 1 times [2021-11-20 06:26:49,606 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 06:26:49,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [487004835] [2021-11-20 06:26:49,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:26:49,607 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 06:26:49,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03000cb0-5f76-4d74-81d4-d6c7630f9dee/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 06:26:49,608 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03000cb0-5f76-4d74-81d4-d6c7630f9dee/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 06:26:49,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03000cb0-5f76-4d74-81d4-d6c7630f9dee/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-20 06:26:49,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:26:49,882 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 06:26:49,887 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:26:50,196 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:26:50,196 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:26:50,489 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:26:50,489 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 06:26:50,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [487004835] [2021-11-20 06:26:50,490 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [487004835] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 06:26:50,490 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:26:50,490 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-20 06:26:50,490 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785677739] [2021-11-20 06:26:50,491 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 06:26:50,492 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 06:26:50,492 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 06:26:50,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 06:26:50,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-20 06:26:50,493 INFO L87 Difference]: Start difference. First operand 373 states and 565 transitions. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:26:50,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:26:50,856 INFO L93 Difference]: Finished difference Result 855 states and 1302 transitions. [2021-11-20 06:26:50,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 06:26:50,857 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2021-11-20 06:26:50,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:26:50,868 INFO L225 Difference]: With dead ends: 855 [2021-11-20 06:26:50,868 INFO L226 Difference]: Without dead ends: 613 [2021-11-20 06:26:50,874 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-20 06:26:50,877 INFO L933 BasicCegarLoop]: 363 mSDtfsCounter, 289 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 726 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-20 06:26:50,878 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [289 Valid, 726 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-20 06:26:50,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2021-11-20 06:26:50,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 611. [2021-11-20 06:26:50,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 611 states, 610 states have (on average 1.5163934426229508) internal successors, (925), 610 states have internal predecessors, (925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:26:50,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 925 transitions. [2021-11-20 06:26:50,951 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 925 transitions. Word has length 65 [2021-11-20 06:26:50,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:26:50,952 INFO L470 AbstractCegarLoop]: Abstraction has 611 states and 925 transitions. [2021-11-20 06:26:50,952 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:26:50,952 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 925 transitions. [2021-11-20 06:26:50,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-11-20 06:26:50,960 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:26:50,960 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 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] [2021-11-20 06:26:50,980 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03000cb0-5f76-4d74-81d4-d6c7630f9dee/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-20 06:26:51,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03000cb0-5f76-4d74-81d4-d6c7630f9dee/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 06:26:51,180 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:26:51,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:26:51,180 INFO L85 PathProgramCache]: Analyzing trace with hash 1540639451, now seen corresponding path program 1 times [2021-11-20 06:26:51,182 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 06:26:51,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1710119771] [2021-11-20 06:26:51,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:26:51,183 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 06:26:51,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03000cb0-5f76-4d74-81d4-d6c7630f9dee/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 06:26:51,184 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03000cb0-5f76-4d74-81d4-d6c7630f9dee/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 06:26:51,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03000cb0-5f76-4d74-81d4-d6c7630f9dee/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-20 06:26:51,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:26:51,516 INFO L263 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-20 06:26:51,524 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:26:52,009 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-20 06:26:52,009 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:26:52,490 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-20 06:26:52,491 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 06:26:52,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1710119771] [2021-11-20 06:26:52,491 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1710119771] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 06:26:52,491 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:26:52,492 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-20 06:26:52,492 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278724700] [2021-11-20 06:26:52,492 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 06:26:52,493 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 06:26:52,493 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 06:26:52,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 06:26:52,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-20 06:26:52,497 INFO L87 Difference]: Start difference. First operand 611 states and 925 transitions. Second operand has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:26:52,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:26:52,713 INFO L93 Difference]: Finished difference Result 1093 states and 1657 transitions. [2021-11-20 06:26:52,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 06:26:52,714 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2021-11-20 06:26:52,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:26:52,719 INFO L225 Difference]: With dead ends: 1093 [2021-11-20 06:26:52,719 INFO L226 Difference]: Without dead ends: 613 [2021-11-20 06:26:52,721 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-20 06:26:52,722 INFO L933 BasicCegarLoop]: 365 mSDtfsCounter, 296 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-20 06:26:52,723 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [296 Valid, 559 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-20 06:26:52,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2021-11-20 06:26:52,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 613. [2021-11-20 06:26:52,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 613 states, 612 states have (on average 1.5049019607843137) internal successors, (921), 612 states have internal predecessors, (921), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:26:52,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 613 states to 613 states and 921 transitions. [2021-11-20 06:26:52,758 INFO L78 Accepts]: Start accepts. Automaton has 613 states and 921 transitions. Word has length 125 [2021-11-20 06:26:52,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:26:52,759 INFO L470 AbstractCegarLoop]: Abstraction has 613 states and 921 transitions. [2021-11-20 06:26:52,759 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:26:52,760 INFO L276 IsEmpty]: Start isEmpty. Operand 613 states and 921 transitions. [2021-11-20 06:26:52,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-11-20 06:26:52,765 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:26:52,766 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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] [2021-11-20 06:26:52,783 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03000cb0-5f76-4d74-81d4-d6c7630f9dee/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-20 06:26:52,982 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03000cb0-5f76-4d74-81d4-d6c7630f9dee/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 06:26:52,982 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:26:52,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:26:52,983 INFO L85 PathProgramCache]: Analyzing trace with hash 1760202500, now seen corresponding path program 1 times [2021-11-20 06:26:52,985 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 06:26:52,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1446753527] [2021-11-20 06:26:52,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:26:52,986 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 06:26:52,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03000cb0-5f76-4d74-81d4-d6c7630f9dee/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 06:26:52,987 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03000cb0-5f76-4d74-81d4-d6c7630f9dee/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 06:26:53,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03000cb0-5f76-4d74-81d4-d6c7630f9dee/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-20 06:26:53,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:26:53,545 INFO L263 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-20 06:26:53,554 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:26:53,625 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-20 06:26:53,640 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-20 06:26:53,736 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 169 treesize of output 158 [2021-11-20 06:26:54,160 INFO L354 Elim1Store]: treesize reduction 1607, result has 2.8 percent of original size [2021-11-20 06:26:54,160 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 8 case distinctions, treesize of input 797 treesize of output 769 [2021-11-20 06:26:54,264 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 169 treesize of output 158 [2021-11-20 06:26:54,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:26:54,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:26:54,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:26:54,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:26:54,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:26:54,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:26:54,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:26:54,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:26:54,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:26:54,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:26:54,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:26:54,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:26:54,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:26:54,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:26:54,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:26:54,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:26:54,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:26:54,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:26:54,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:26:54,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:26:54,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:26:54,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:26:54,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:26:54,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:26:54,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:26:54,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:26:54,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:26:54,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:26:54,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:26:54,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:26:54,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:26:54,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:26:54,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:26:54,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:26:54,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:26:54,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:26:54,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:26:54,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:26:54,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:26:54,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:26:54,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:26:54,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:26:54,423 INFO L244 Elim1Store]: Index analysis took 106 ms [2021-11-20 06:26:54,430 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 36 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 49 [2021-11-20 06:26:54,582 INFO L354 Elim1Store]: treesize reduction 340, result has 2.6 percent of original size [2021-11-20 06:26:54,583 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 62 treesize of output 13 [2021-11-20 06:26:54,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:26:54,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:26:54,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:26:54,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:26:54,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:26:54,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:26:54,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:26:54,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:26:54,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:26:54,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:26:54,630 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 13 [2021-11-20 06:26:54,670 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 25 [2021-11-20 06:26:54,676 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2021-11-20 06:26:55,088 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2021-11-20 06:26:55,089 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:26:56,254 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2021-11-20 06:26:56,254 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 06:26:56,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1446753527] [2021-11-20 06:26:56,255 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1446753527] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 06:26:56,255 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:26:56,255 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-20 06:26:56,256 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808804477] [2021-11-20 06:26:56,256 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 06:26:56,257 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-20 06:26:56,257 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 06:26:56,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-20 06:26:56,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-20 06:26:56,258 INFO L87 Difference]: Start difference. First operand 613 states and 921 transitions. Second operand has 8 states, 8 states have (on average 9.25) internal successors, (74), 8 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:26:58,293 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:27:00,301 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:27:04,340 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:27:09,195 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:27:12,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:27:12,722 INFO L93 Difference]: Finished difference Result 1223 states and 1838 transitions. [2021-11-20 06:27:12,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 06:27:12,725 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 8 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 128 [2021-11-20 06:27:12,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:27:12,730 INFO L225 Difference]: With dead ends: 1223 [2021-11-20 06:27:12,730 INFO L226 Difference]: Without dead ends: 613 [2021-11-20 06:27:12,731 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 247 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-11-20 06:27:12,734 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 5 mSDsluCounter, 734 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 931 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 62 IncrementalHoareTripleChecker+Unchecked, 16.4s IncrementalHoareTripleChecker+Time [2021-11-20 06:27:12,736 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 931 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 214 Invalid, 2 Unknown, 62 Unchecked, 16.4s Time] [2021-11-20 06:27:12,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2021-11-20 06:27:12,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 613. [2021-11-20 06:27:12,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 613 states, 612 states have (on average 1.5032679738562091) internal successors, (920), 612 states have internal predecessors, (920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:27:12,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 613 states to 613 states and 920 transitions. [2021-11-20 06:27:12,767 INFO L78 Accepts]: Start accepts. Automaton has 613 states and 920 transitions. Word has length 128 [2021-11-20 06:27:12,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:27:12,768 INFO L470 AbstractCegarLoop]: Abstraction has 613 states and 920 transitions. [2021-11-20 06:27:12,768 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 8 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:27:12,768 INFO L276 IsEmpty]: Start isEmpty. Operand 613 states and 920 transitions. [2021-11-20 06:27:12,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-11-20 06:27:12,775 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:27:12,775 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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] [2021-11-20 06:27:12,798 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03000cb0-5f76-4d74-81d4-d6c7630f9dee/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-20 06:27:12,996 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03000cb0-5f76-4d74-81d4-d6c7630f9dee/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 06:27:12,996 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:27:12,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:27:12,997 INFO L85 PathProgramCache]: Analyzing trace with hash 1330544194, now seen corresponding path program 1 times [2021-11-20 06:27:12,998 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 06:27:12,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [62277866] [2021-11-20 06:27:12,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:27:12,999 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 06:27:12,999 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03000cb0-5f76-4d74-81d4-d6c7630f9dee/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 06:27:13,000 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03000cb0-5f76-4d74-81d4-d6c7630f9dee/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 06:27:13,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03000cb0-5f76-4d74-81d4-d6c7630f9dee/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-20 06:27:13,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:27:13,732 INFO L263 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-20 06:27:13,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:27:13,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:27:13,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:27:13,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:27:13,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:27:13,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 06:27:13,834 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:27:13,978 INFO L354 Elim1Store]: treesize reduction 190, result has 12.8 percent of original size [2021-11-20 06:27:13,978 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 32 treesize of output 38 [2021-11-20 06:27:14,070 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:27:14,071 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:27:14,072 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-20 06:27:14,538 INFO L354 Elim1Store]: treesize reduction 850, result has 7.0 percent of original size [2021-11-20 06:27:14,539 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 13 case distinctions, treesize of input 70 treesize of output 87 [2021-11-20 06:27:16,285 INFO L354 Elim1Store]: treesize reduction 336, result has 0.3 percent of original size [2021-11-20 06:27:16,285 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 108 treesize of output 36 [2021-11-20 06:27:16,524 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-20 06:27:16,524 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:27:17,520 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-20 06:27:17,521 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 06:27:17,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [62277866] [2021-11-20 06:27:17,521 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [62277866] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 06:27:17,521 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:27:17,522 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 5 [2021-11-20 06:27:17,522 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811960436] [2021-11-20 06:27:17,522 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 06:27:17,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 06:27:17,523 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 06:27:17,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 06:27:17,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:27:17,524 INFO L87 Difference]: Start difference. First operand 613 states and 920 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:27:19,553 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:27:21,409 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:27:24,357 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:27:27,975 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 06:27:31,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:27:31,186 INFO L93 Difference]: Finished difference Result 1420 states and 2131 transitions. [2021-11-20 06:27:31,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 06:27:31,189 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 128 [2021-11-20 06:27:31,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:27:31,196 INFO L225 Difference]: With dead ends: 1420 [2021-11-20 06:27:31,196 INFO L226 Difference]: Without dead ends: 817 [2021-11-20 06:27:31,198 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 248 SyntacticMatches, 3 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-20 06:27:31,198 INFO L933 BasicCegarLoop]: 236 mSDtfsCounter, 80 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 19 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 568 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.5s IncrementalHoareTripleChecker+Time [2021-11-20 06:27:31,199 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [80 Valid, 568 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 187 Invalid, 1 Unknown, 0 Unchecked, 13.5s Time] [2021-11-20 06:27:31,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 817 states. [2021-11-20 06:27:31,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 817 to 713. [2021-11-20 06:27:31,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 713 states, 712 states have (on average 1.5337078651685394) internal successors, (1092), 712 states have internal predecessors, (1092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:27:31,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 713 states to 713 states and 1092 transitions. [2021-11-20 06:27:31,238 INFO L78 Accepts]: Start accepts. Automaton has 713 states and 1092 transitions. Word has length 128 [2021-11-20 06:27:31,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:27:31,238 INFO L470 AbstractCegarLoop]: Abstraction has 713 states and 1092 transitions. [2021-11-20 06:27:31,239 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:27:31,239 INFO L276 IsEmpty]: Start isEmpty. Operand 713 states and 1092 transitions. [2021-11-20 06:27:31,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-11-20 06:27:31,241 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:27:31,242 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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] [2021-11-20 06:27:31,266 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03000cb0-5f76-4d74-81d4-d6c7630f9dee/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-20 06:27:31,460 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03000cb0-5f76-4d74-81d4-d6c7630f9dee/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 06:27:31,460 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:27:31,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:27:31,461 INFO L85 PathProgramCache]: Analyzing trace with hash -545938624, now seen corresponding path program 1 times [2021-11-20 06:27:31,462 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 06:27:31,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1938546984] [2021-11-20 06:27:31,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:27:31,463 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 06:27:31,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03000cb0-5f76-4d74-81d4-d6c7630f9dee/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 06:27:31,465 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03000cb0-5f76-4d74-81d4-d6c7630f9dee/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 06:27:31,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03000cb0-5f76-4d74-81d4-d6c7630f9dee/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-20 06:27:34,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:27:34,361 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 06:27:36,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:27:37,060 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-11-20 06:27:37,060 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-20 06:27:37,062 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-20 06:27:37,096 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03000cb0-5f76-4d74-81d4-d6c7630f9dee/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-20 06:27:37,286 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03000cb0-5f76-4d74-81d4-d6c7630f9dee/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 06:27:37,291 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-11-20 06:27:37,295 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-20 06:27:37,554 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 06:27:37 BoogieIcfgContainer [2021-11-20 06:27:37,554 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-20 06:27:37,555 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 06:27:37,555 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 06:27:37,555 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 06:27:37,556 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:26:47" (3/4) ... [2021-11-20 06:27:37,558 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-20 06:27:37,709 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03000cb0-5f76-4d74-81d4-d6c7630f9dee/bin/uautomizer-DQz5hQGWxF/witness.graphml [2021-11-20 06:27:37,709 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 06:27:37,710 INFO L158 Benchmark]: Toolchain (without parser) took 61025.88ms. Allocated memory was 58.7MB in the beginning and 138.4MB in the end (delta: 79.7MB). Free memory was 36.1MB in the beginning and 42.2MB in the end (delta: -6.2MB). Peak memory consumption was 78.4MB. Max. memory is 16.1GB. [2021-11-20 06:27:37,710 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 58.7MB. Free memory is still 39.8MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 06:27:37,711 INFO L158 Benchmark]: CACSL2BoogieTranslator took 925.82ms. Allocated memory was 58.7MB in the beginning and 75.5MB in the end (delta: 16.8MB). Free memory was 35.9MB in the beginning and 37.9MB in the end (delta: -2.0MB). Peak memory consumption was 19.1MB. Max. memory is 16.1GB. [2021-11-20 06:27:37,711 INFO L158 Benchmark]: Boogie Procedure Inliner took 153.07ms. Allocated memory is still 75.5MB. Free memory was 37.9MB in the beginning and 51.9MB in the end (delta: -14.0MB). Peak memory consumption was 4.1MB. Max. memory is 16.1GB. [2021-11-20 06:27:37,712 INFO L158 Benchmark]: Boogie Preprocessor took 92.81ms. Allocated memory is still 75.5MB. Free memory was 51.9MB in the beginning and 44.8MB in the end (delta: 7.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-20 06:27:37,712 INFO L158 Benchmark]: RCFGBuilder took 10035.44ms. Allocated memory was 75.5MB in the beginning and 115.3MB in the end (delta: 39.8MB). Free memory was 44.8MB in the beginning and 80.2MB in the end (delta: -35.4MB). Peak memory consumption was 39.4MB. Max. memory is 16.1GB. [2021-11-20 06:27:37,716 INFO L158 Benchmark]: TraceAbstraction took 49655.78ms. Allocated memory was 115.3MB in the beginning and 138.4MB in the end (delta: 23.1MB). Free memory was 80.2MB in the beginning and 62.2MB in the end (delta: 18.0MB). Peak memory consumption was 41.0MB. Max. memory is 16.1GB. [2021-11-20 06:27:37,716 INFO L158 Benchmark]: Witness Printer took 154.68ms. Allocated memory is still 138.4MB. Free memory was 62.2MB in the beginning and 42.2MB in the end (delta: 19.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2021-11-20 06:27:37,721 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 58.7MB. Free memory is still 39.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 925.82ms. Allocated memory was 58.7MB in the beginning and 75.5MB in the end (delta: 16.8MB). Free memory was 35.9MB in the beginning and 37.9MB in the end (delta: -2.0MB). Peak memory consumption was 19.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 153.07ms. Allocated memory is still 75.5MB. Free memory was 37.9MB in the beginning and 51.9MB in the end (delta: -14.0MB). Peak memory consumption was 4.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 92.81ms. Allocated memory is still 75.5MB. Free memory was 51.9MB in the beginning and 44.8MB in the end (delta: 7.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 10035.44ms. Allocated memory was 75.5MB in the beginning and 115.3MB in the end (delta: 39.8MB). Free memory was 44.8MB in the beginning and 80.2MB in the end (delta: -35.4MB). Peak memory consumption was 39.4MB. Max. memory is 16.1GB. * TraceAbstraction took 49655.78ms. Allocated memory was 115.3MB in the beginning and 138.4MB in the end (delta: 23.1MB). Free memory was 80.2MB in the beginning and 62.2MB in the end (delta: 18.0MB). Peak memory consumption was 41.0MB. Max. memory is 16.1GB. * Witness Printer took 154.68ms. Allocated memory is still 138.4MB. Free memory was 62.2MB in the beginning and 42.2MB in the end (delta: 19.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 1737]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1054] static int init = 1; [L1055] static SSL_METHOD SSLv3_server_data ; VAL [init=1, SSLv3_server_data={4:0}] [L1077] SSL *s ; [L1078] int tmp ; [L1082] s = malloc(sizeof(SSL)) [L1083] s->s3 = malloc(sizeof(struct ssl3_state_st)) [L1084] s->ctx = malloc(sizeof(SSL_CTX)) [L1085] s->session = malloc(sizeof(SSL_SESSION)) [L1086] s->state = 8464 [L1088] s->info_callback = (void (*) ()) __VERIFIER_nondet_ulong() [L1089] s->options = __VERIFIER_nondet_ulong() [L1090] s->verify_mode = __VERIFIER_nondet_int() [L1091] EXPR s->session [L1091] (s->session)->peer = (struct x509_st*) __VERIFIER_nondet_ulong() [L1092] EXPR s->s3 [L1092] (s->s3)->tmp.cert_request = __VERIFIER_nondet_int() [L1093] EXPR s->s3 [L1093] (s->s3)->tmp.new_cipher = malloc(sizeof(struct ssl_cipher_st)) [L1094] EXPR s->s3 [L1094] EXPR (s->s3)->tmp.new_cipher [L1094] ((s->s3)->tmp.new_cipher)->algorithms = __VERIFIER_nondet_ulong() [L1095] EXPR s->s3 [L1095] EXPR (s->s3)->tmp.new_cipher [L1095] ((s->s3)->tmp.new_cipher)->algo_strength = __VERIFIER_nondet_ulong() [L1096] COND FALSE !(__VERIFIER_nondet_int()) [L1102] s->cert = malloc(sizeof(struct cert_st)) [L1103] EXPR s->cert [L1103] (s->cert)->pkeys[0].privatekey = (struct evp_pkey_st*) __VERIFIER_nondet_ulong() [L1106] CALL ssl3_accept(s) [L1112] BUF_MEM *buf = (BUF_MEM *)__VERIFIER_nondet_ulong(); [L1113] unsigned long l ; [L1114] unsigned long Time ; [L1115] unsigned long tmp = __VERIFIER_nondet_long() ; [L1116] void (*cb)() ; [L1117] long num1 ; [L1118] int ret ; [L1119] int new_state ; [L1120] int state ; [L1121] int skip ; [L1122] int got_new_session ; [L1123] int tmp___1 = __VERIFIER_nondet_int() ; [L1124] int tmp___2 = __VERIFIER_nondet_int() ; [L1125] int tmp___3 ; [L1126] int tmp___4 ; [L1127] int tmp___5 ; [L1128] int tmp___6 ; [L1129] int tmp___7 ; [L1130] long tmp___8 = __VERIFIER_nondet_long() ; [L1131] int tmp___9 ; [L1132] int tmp___10 ; [L1133] int blastFlag ; [L1137] blastFlag = 0 [L1138] s->hit=__VERIFIER_nondet_int () [L1139] s->state = 8464 [L1140] Time = tmp [L1141] cb = (void (*)())((void *)0) [L1142] ret = -1 [L1143] skip = 0 [L1144] got_new_session = 0 [L1145] EXPR s->info_callback VAL [={0:0}, blastFlag=0, buf=null, got_new_session=0, init=1, ret=4294967295, s={1073741826:0}, s={1073741826:0}, s->info_callback={0:-2147483648}, skip=0, SSLv3_server_data={4:0}, Time=7, tmp=7] [L1145] COND TRUE (unsigned long )s->info_callback != (unsigned long )((void *)0) [L1146] EXPR s->info_callback [L1146] cb = s->info_callback [L1150] EXPR s->in_handshake [L1150] s->in_handshake += 1 [L1151] COND FALSE !(tmp___1 & 12288) VAL [={0:-2147483648}, blastFlag=0, buf=null, got_new_session=0, init=1, ret=4294967295, s={1073741826:0}, s={1073741826:0}, skip=0, SSLv3_server_data={4:0}, Time=7, tmp=7, tmp___1=0] [L1160] EXPR s->cert VAL [={0:-2147483648}, blastFlag=0, buf=null, got_new_session=0, init=1, ret=4294967295, s={1073741826:0}, s={1073741826:0}, s->cert={1073741830:0}, skip=0, SSLv3_server_data={4:0}, Time=7, tmp=7, tmp___1=0] [L1160] COND FALSE !((unsigned long )s->cert == (unsigned long )((void *)0)) [L1166] COND TRUE 1 VAL [={0:-2147483648}, blastFlag=0, buf=null, got_new_session=0, init=1, ret=4294967295, s={1073741826:0}, s={1073741826:0}, skip=0, SSLv3_server_data={4:0}, Time=7, tmp=7, tmp___1=0] [L1168] EXPR s->state [L1168] state = s->state [L1169] EXPR s->state VAL [={0:-2147483648}, blastFlag=0, buf=null, got_new_session=0, init=1, ret=4294967295, s={1073741826:0}, s={1073741826:0}, s->state=8464, skip=0, SSLv3_server_data={4:0}, state=8464, Time=7, tmp=7, tmp___1=0] [L1169] COND FALSE !(s->state == 12292) [L1172] EXPR s->state VAL [={0:-2147483648}, blastFlag=0, buf=null, got_new_session=0, init=1, ret=4294967295, s={1073741826:0}, s={1073741826:0}, s->state=8464, skip=0, SSLv3_server_data={4:0}, state=8464, Time=7, tmp=7, tmp___1=0] [L1172] COND FALSE !(s->state == 16384) [L1175] EXPR s->state VAL [={0:-2147483648}, blastFlag=0, buf=null, got_new_session=0, init=1, ret=4294967295, s={1073741826:0}, s={1073741826:0}, s->state=8464, skip=0, SSLv3_server_data={4:0}, state=8464, Time=7, tmp=7, tmp___1=0] [L1175] COND FALSE !(s->state == 8192) [L1178] EXPR s->state VAL [={0:-2147483648}, blastFlag=0, buf=null, got_new_session=0, init=1, ret=4294967295, s={1073741826:0}, s={1073741826:0}, s->state=8464, skip=0, SSLv3_server_data={4:0}, state=8464, Time=7, tmp=7, tmp___1=0] [L1178] COND FALSE !(s->state == 24576) [L1181] EXPR s->state VAL [={0:-2147483648}, blastFlag=0, buf=null, got_new_session=0, init=1, ret=4294967295, s={1073741826:0}, s={1073741826:0}, s->state=8464, skip=0, SSLv3_server_data={4:0}, state=8464, Time=7, tmp=7, tmp___1=0] [L1181] COND FALSE !(s->state == 8195) [L1184] EXPR s->state VAL [={0:-2147483648}, blastFlag=0, buf=null, got_new_session=0, init=1, ret=4294967295, s={1073741826:0}, s={1073741826:0}, s->state=8464, skip=0, SSLv3_server_data={4:0}, state=8464, Time=7, tmp=7, tmp___1=0] [L1184] COND FALSE !(s->state == 8480) [L1187] EXPR s->state VAL [={0:-2147483648}, blastFlag=0, buf=null, got_new_session=0, init=1, ret=4294967295, s={1073741826:0}, s={1073741826:0}, s->state=8464, skip=0, SSLv3_server_data={4:0}, state=8464, Time=7, tmp=7, tmp___1=0] [L1187] COND FALSE !(s->state == 8481) [L1190] EXPR s->state VAL [={0:-2147483648}, blastFlag=0, buf=null, got_new_session=0, init=1, ret=4294967295, s={1073741826:0}, s={1073741826:0}, s->state=8464, skip=0, SSLv3_server_data={4:0}, state=8464, Time=7, tmp=7, tmp___1=0] [L1190] COND FALSE !(s->state == 8482) [L1193] EXPR s->state VAL [={0:-2147483648}, blastFlag=0, buf=null, got_new_session=0, init=1, ret=4294967295, s={1073741826:0}, s={1073741826:0}, s->state=8464, skip=0, SSLv3_server_data={4:0}, state=8464, Time=7, tmp=7, tmp___1=0] [L1193] COND TRUE s->state == 8464 [L1349] s->shutdown = 0 [L1350] ret = __VERIFIER_nondet_int() [L1351] COND TRUE blastFlag == 0 [L1352] blastFlag = 1 VAL [={0:-2147483648}, blastFlag=1, buf=null, got_new_session=0, init=1, ret=1073741824, s={1073741826:0}, s={1073741826:0}, skip=0, SSLv3_server_data={4:0}, state=8464, Time=7, tmp=7, tmp___1=0] [L1356] COND FALSE !(ret <= 0) [L1361] got_new_session = 1 [L1362] s->state = 8496 [L1363] s->init_num = 0 VAL [={0:-2147483648}, blastFlag=1, buf=null, got_new_session=1, init=1, ret=1073741824, s={1073741826:0}, s={1073741826:0}, skip=0, SSLv3_server_data={4:0}, state=8464, Time=7, tmp=7, tmp___1=0] [L1696] EXPR s->s3 [L1696] EXPR (s->s3)->tmp.reuse_message VAL [={0:-2147483648}, (s->s3)->tmp.reuse_message=-2147483648, blastFlag=1, buf=null, got_new_session=1, init=1, ret=1073741824, s={1073741826:0}, s={1073741826:0}, s->s3={-1073741822:0}, skip=0, SSLv3_server_data={4:0}, state=8464, Time=7, tmp=7, tmp___1=0] [L1696] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1725] skip = 0 VAL [={0:-2147483648}, blastFlag=1, buf=null, got_new_session=1, init=1, ret=1073741824, s={1073741826:0}, s={1073741826:0}, skip=0, SSLv3_server_data={4:0}, state=8464, Time=7, tmp=7, tmp___1=0] [L1166] COND TRUE 1 VAL [={0:-2147483648}, blastFlag=1, buf=null, got_new_session=1, init=1, ret=1073741824, s={1073741826:0}, s={1073741826:0}, skip=0, SSLv3_server_data={4:0}, state=8464, Time=7, tmp=7, tmp___1=0] [L1168] EXPR s->state [L1168] state = s->state [L1169] EXPR s->state VAL [={0:-2147483648}, blastFlag=1, buf=null, got_new_session=1, init=1, ret=1073741824, s={1073741826:0}, s={1073741826:0}, s->state=8496, skip=0, SSLv3_server_data={4:0}, state=8496, Time=7, tmp=7, tmp___1=0] [L1169] COND FALSE !(s->state == 12292) [L1172] EXPR s->state VAL [={0:-2147483648}, blastFlag=1, buf=null, got_new_session=1, init=1, ret=1073741824, s={1073741826:0}, s={1073741826:0}, s->state=8496, skip=0, SSLv3_server_data={4:0}, state=8496, Time=7, tmp=7, tmp___1=0] [L1172] COND FALSE !(s->state == 16384) [L1175] EXPR s->state VAL [={0:-2147483648}, blastFlag=1, buf=null, got_new_session=1, init=1, ret=1073741824, s={1073741826:0}, s={1073741826:0}, s->state=8496, skip=0, SSLv3_server_data={4:0}, state=8496, Time=7, tmp=7, tmp___1=0] [L1175] COND FALSE !(s->state == 8192) [L1178] EXPR s->state VAL [={0:-2147483648}, blastFlag=1, buf=null, got_new_session=1, init=1, ret=1073741824, s={1073741826:0}, s={1073741826:0}, s->state=8496, skip=0, SSLv3_server_data={4:0}, state=8496, Time=7, tmp=7, tmp___1=0] [L1178] COND FALSE !(s->state == 24576) [L1181] EXPR s->state VAL [={0:-2147483648}, blastFlag=1, buf=null, got_new_session=1, init=1, ret=1073741824, s={1073741826:0}, s={1073741826:0}, s->state=8496, skip=0, SSLv3_server_data={4:0}, state=8496, Time=7, tmp=7, tmp___1=0] [L1181] COND FALSE !(s->state == 8195) [L1184] EXPR s->state VAL [={0:-2147483648}, blastFlag=1, buf=null, got_new_session=1, init=1, ret=1073741824, s={1073741826:0}, s={1073741826:0}, s->state=8496, skip=0, SSLv3_server_data={4:0}, state=8496, Time=7, tmp=7, tmp___1=0] [L1184] COND FALSE !(s->state == 8480) [L1187] EXPR s->state VAL [={0:-2147483648}, blastFlag=1, buf=null, got_new_session=1, init=1, ret=1073741824, s={1073741826:0}, s={1073741826:0}, s->state=8496, skip=0, SSLv3_server_data={4:0}, state=8496, Time=7, tmp=7, tmp___1=0] [L1187] COND FALSE !(s->state == 8481) [L1190] EXPR s->state VAL [={0:-2147483648}, blastFlag=1, buf=null, got_new_session=1, init=1, ret=1073741824, s={1073741826:0}, s={1073741826:0}, s->state=8496, skip=0, SSLv3_server_data={4:0}, state=8496, Time=7, tmp=7, tmp___1=0] [L1190] COND FALSE !(s->state == 8482) [L1193] EXPR s->state VAL [={0:-2147483648}, blastFlag=1, buf=null, got_new_session=1, init=1, ret=1073741824, s={1073741826:0}, s={1073741826:0}, s->state=8496, skip=0, SSLv3_server_data={4:0}, state=8496, Time=7, tmp=7, tmp___1=0] [L1193] COND FALSE !(s->state == 8464) [L1196] EXPR s->state VAL [={0:-2147483648}, blastFlag=1, buf=null, got_new_session=1, init=1, ret=1073741824, s={1073741826:0}, s={1073741826:0}, s->state=8496, skip=0, SSLv3_server_data={4:0}, state=8496, Time=7, tmp=7, tmp___1=0] [L1196] COND FALSE !(s->state == 8465) [L1199] EXPR s->state VAL [={0:-2147483648}, blastFlag=1, buf=null, got_new_session=1, init=1, ret=1073741824, s={1073741826:0}, s={1073741826:0}, s->state=8496, skip=0, SSLv3_server_data={4:0}, state=8496, Time=7, tmp=7, tmp___1=0] [L1199] COND FALSE !(s->state == 8466) [L1202] EXPR s->state VAL [={0:-2147483648}, blastFlag=1, buf=null, got_new_session=1, init=1, ret=1073741824, s={1073741826:0}, s={1073741826:0}, s->state=8496, skip=0, SSLv3_server_data={4:0}, state=8496, Time=7, tmp=7, tmp___1=0] [L1202] COND TRUE s->state == 8496 [L1367] ret = __VERIFIER_nondet_int() [L1368] COND TRUE blastFlag == 1 [L1369] blastFlag = 2 VAL [={0:-2147483648}, blastFlag=2, buf=null, got_new_session=1, init=1, ret=1073741824, s={1073741826:0}, s={1073741826:0}, skip=0, SSLv3_server_data={4:0}, state=8496, Time=7, tmp=7, tmp___1=0] [L1373] COND FALSE !(ret <= 0) [L1378] s->hit VAL [={0:-2147483648}, blastFlag=2, buf=null, got_new_session=1, init=1, ret=1073741824, s={1073741826:0}, s={1073741826:0}, s->hit=-2147483648, skip=0, SSLv3_server_data={4:0}, state=8496, Time=7, tmp=7, tmp___1=0] [L1378] COND TRUE s->hit [L1379] s->state = 8656 VAL [={0:-2147483648}, blastFlag=2, buf=null, got_new_session=1, init=1, ret=1073741824, s={1073741826:0}, s={1073741826:0}, skip=0, SSLv3_server_data={4:0}, state=8496, Time=7, tmp=7, tmp___1=0] [L1383] s->init_num = 0 VAL [={0:-2147483648}, blastFlag=2, buf=null, got_new_session=1, init=1, ret=1073741824, s={1073741826:0}, s={1073741826:0}, skip=0, SSLv3_server_data={4:0}, state=8496, Time=7, tmp=7, tmp___1=0] [L1696] EXPR s->s3 [L1696] EXPR (s->s3)->tmp.reuse_message VAL [={0:-2147483648}, (s->s3)->tmp.reuse_message=-2147483648, blastFlag=2, buf=null, got_new_session=1, init=1, ret=1073741824, s={1073741826:0}, s={1073741826:0}, s->s3={-1073741822:0}, skip=0, SSLv3_server_data={4:0}, state=8496, Time=7, tmp=7, tmp___1=0] [L1696] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1725] skip = 0 VAL [={0:-2147483648}, blastFlag=2, buf=null, got_new_session=1, init=1, ret=1073741824, s={1073741826:0}, s={1073741826:0}, skip=0, SSLv3_server_data={4:0}, state=8496, Time=7, tmp=7, tmp___1=0] [L1166] COND TRUE 1 VAL [={0:-2147483648}, blastFlag=2, buf=null, got_new_session=1, init=1, ret=1073741824, s={1073741826:0}, s={1073741826:0}, skip=0, SSLv3_server_data={4:0}, state=8496, Time=7, tmp=7, tmp___1=0] [L1168] EXPR s->state [L1168] state = s->state [L1169] EXPR s->state VAL [={0:-2147483648}, blastFlag=2, buf=null, got_new_session=1, init=1, ret=1073741824, s={1073741826:0}, s={1073741826:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=7, tmp=7, tmp___1=0] [L1169] COND FALSE !(s->state == 12292) [L1172] EXPR s->state VAL [={0:-2147483648}, blastFlag=2, buf=null, got_new_session=1, init=1, ret=1073741824, s={1073741826:0}, s={1073741826:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=7, tmp=7, tmp___1=0] [L1172] COND FALSE !(s->state == 16384) [L1175] EXPR s->state VAL [={0:-2147483648}, blastFlag=2, buf=null, got_new_session=1, init=1, ret=1073741824, s={1073741826:0}, s={1073741826:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=7, tmp=7, tmp___1=0] [L1175] COND FALSE !(s->state == 8192) [L1178] EXPR s->state VAL [={0:-2147483648}, blastFlag=2, buf=null, got_new_session=1, init=1, ret=1073741824, s={1073741826:0}, s={1073741826:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=7, tmp=7, tmp___1=0] [L1178] COND FALSE !(s->state == 24576) [L1181] EXPR s->state VAL [={0:-2147483648}, blastFlag=2, buf=null, got_new_session=1, init=1, ret=1073741824, s={1073741826:0}, s={1073741826:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=7, tmp=7, tmp___1=0] [L1181] COND FALSE !(s->state == 8195) [L1184] EXPR s->state VAL [={0:-2147483648}, blastFlag=2, buf=null, got_new_session=1, init=1, ret=1073741824, s={1073741826:0}, s={1073741826:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=7, tmp=7, tmp___1=0] [L1184] COND FALSE !(s->state == 8480) [L1187] EXPR s->state VAL [={0:-2147483648}, blastFlag=2, buf=null, got_new_session=1, init=1, ret=1073741824, s={1073741826:0}, s={1073741826:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=7, tmp=7, tmp___1=0] [L1187] COND FALSE !(s->state == 8481) [L1190] EXPR s->state VAL [={0:-2147483648}, blastFlag=2, buf=null, got_new_session=1, init=1, ret=1073741824, s={1073741826:0}, s={1073741826:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=7, tmp=7, tmp___1=0] [L1190] COND FALSE !(s->state == 8482) [L1193] EXPR s->state VAL [={0:-2147483648}, blastFlag=2, buf=null, got_new_session=1, init=1, ret=1073741824, s={1073741826:0}, s={1073741826:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=7, tmp=7, tmp___1=0] [L1193] COND FALSE !(s->state == 8464) [L1196] EXPR s->state VAL [={0:-2147483648}, blastFlag=2, buf=null, got_new_session=1, init=1, ret=1073741824, s={1073741826:0}, s={1073741826:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=7, tmp=7, tmp___1=0] [L1196] COND FALSE !(s->state == 8465) [L1199] EXPR s->state VAL [={0:-2147483648}, blastFlag=2, buf=null, got_new_session=1, init=1, ret=1073741824, s={1073741826:0}, s={1073741826:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=7, tmp=7, tmp___1=0] [L1199] COND FALSE !(s->state == 8466) [L1202] EXPR s->state VAL [={0:-2147483648}, blastFlag=2, buf=null, got_new_session=1, init=1, ret=1073741824, s={1073741826:0}, s={1073741826:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=7, tmp=7, tmp___1=0] [L1202] COND FALSE !(s->state == 8496) [L1205] EXPR s->state VAL [={0:-2147483648}, blastFlag=2, buf=null, got_new_session=1, init=1, ret=1073741824, s={1073741826:0}, s={1073741826:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=7, tmp=7, tmp___1=0] [L1205] COND FALSE !(s->state == 8497) [L1208] EXPR s->state VAL [={0:-2147483648}, blastFlag=2, buf=null, got_new_session=1, init=1, ret=1073741824, s={1073741826:0}, s={1073741826:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=7, tmp=7, tmp___1=0] [L1208] COND FALSE !(s->state == 8512) [L1211] EXPR s->state VAL [={0:-2147483648}, blastFlag=2, buf=null, got_new_session=1, init=1, ret=1073741824, s={1073741826:0}, s={1073741826:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=7, tmp=7, tmp___1=0] [L1211] COND FALSE !(s->state == 8513) [L1214] EXPR s->state VAL [={0:-2147483648}, blastFlag=2, buf=null, got_new_session=1, init=1, ret=1073741824, s={1073741826:0}, s={1073741826:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=7, tmp=7, tmp___1=0] [L1214] COND FALSE !(s->state == 8528) [L1217] EXPR s->state VAL [={0:-2147483648}, blastFlag=2, buf=null, got_new_session=1, init=1, ret=1073741824, s={1073741826:0}, s={1073741826:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=7, tmp=7, tmp___1=0] [L1217] COND FALSE !(s->state == 8529) [L1220] EXPR s->state VAL [={0:-2147483648}, blastFlag=2, buf=null, got_new_session=1, init=1, ret=1073741824, s={1073741826:0}, s={1073741826:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=7, tmp=7, tmp___1=0] [L1220] COND FALSE !(s->state == 8544) [L1223] EXPR s->state VAL [={0:-2147483648}, blastFlag=2, buf=null, got_new_session=1, init=1, ret=1073741824, s={1073741826:0}, s={1073741826:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=7, tmp=7, tmp___1=0] [L1223] COND FALSE !(s->state == 8545) [L1226] EXPR s->state VAL [={0:-2147483648}, blastFlag=2, buf=null, got_new_session=1, init=1, ret=1073741824, s={1073741826:0}, s={1073741826:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=7, tmp=7, tmp___1=0] [L1226] COND FALSE !(s->state == 8560) [L1229] EXPR s->state VAL [={0:-2147483648}, blastFlag=2, buf=null, got_new_session=1, init=1, ret=1073741824, s={1073741826:0}, s={1073741826:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=7, tmp=7, tmp___1=0] [L1229] COND FALSE !(s->state == 8561) [L1232] EXPR s->state VAL [={0:-2147483648}, blastFlag=2, buf=null, got_new_session=1, init=1, ret=1073741824, s={1073741826:0}, s={1073741826:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=7, tmp=7, tmp___1=0] [L1232] COND FALSE !(s->state == 8448) [L1235] EXPR s->state VAL [={0:-2147483648}, blastFlag=2, buf=null, got_new_session=1, init=1, ret=1073741824, s={1073741826:0}, s={1073741826:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=7, tmp=7, tmp___1=0] [L1235] COND FALSE !(s->state == 8576) [L1238] EXPR s->state VAL [={0:-2147483648}, blastFlag=2, buf=null, got_new_session=1, init=1, ret=1073741824, s={1073741826:0}, s={1073741826:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=7, tmp=7, tmp___1=0] [L1238] COND FALSE !(s->state == 8577) [L1241] EXPR s->state VAL [={0:-2147483648}, blastFlag=2, buf=null, got_new_session=1, init=1, ret=1073741824, s={1073741826:0}, s={1073741826:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=7, tmp=7, tmp___1=0] [L1241] COND FALSE !(s->state == 8592) [L1244] EXPR s->state VAL [={0:-2147483648}, blastFlag=2, buf=null, got_new_session=1, init=1, ret=1073741824, s={1073741826:0}, s={1073741826:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=7, tmp=7, tmp___1=0] [L1244] COND FALSE !(s->state == 8593) [L1247] EXPR s->state VAL [={0:-2147483648}, blastFlag=2, buf=null, got_new_session=1, init=1, ret=1073741824, s={1073741826:0}, s={1073741826:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=7, tmp=7, tmp___1=0] [L1247] COND FALSE !(s->state == 8608) [L1250] EXPR s->state VAL [={0:-2147483648}, blastFlag=2, buf=null, got_new_session=1, init=1, ret=1073741824, s={1073741826:0}, s={1073741826:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=7, tmp=7, tmp___1=0] [L1250] COND FALSE !(s->state == 8609) [L1253] EXPR s->state VAL [={0:-2147483648}, blastFlag=2, buf=null, got_new_session=1, init=1, ret=1073741824, s={1073741826:0}, s={1073741826:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=7, tmp=7, tmp___1=0] [L1253] COND FALSE !(s->state == 8640) [L1256] EXPR s->state VAL [={0:-2147483648}, blastFlag=2, buf=null, got_new_session=1, init=1, ret=1073741824, s={1073741826:0}, s={1073741826:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=7, tmp=7, tmp___1=0] [L1256] COND FALSE !(s->state == 8641) [L1259] EXPR s->state VAL [={0:-2147483648}, blastFlag=2, buf=null, got_new_session=1, init=1, ret=1073741824, s={1073741826:0}, s={1073741826:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=7, tmp=7, tmp___1=0] [L1259] COND TRUE s->state == 8656 [L1583] EXPR s->session [L1583] EXPR s->s3 [L1583] EXPR (s->s3)->tmp.new_cipher [L1583] (s->session)->cipher = (s->s3)->tmp.new_cipher [L1584] tmp___9 = __VERIFIER_nondet_int() [L1585] COND FALSE !(! tmp___9) [L1591] ret = __VERIFIER_nondet_int() [L1592] COND TRUE blastFlag == 2 [L1593] blastFlag = 5 VAL [={0:-2147483648}, blastFlag=5, buf=null, got_new_session=1, init=1, ret=1073741824, s={1073741826:0}, s={1073741826:0}, skip=0, SSLv3_server_data={4:0}, state=8656, Time=7, tmp=7, tmp___1=0, tmp___9=2147483648] [L1597] COND FALSE !(ret <= 0) [L1602] s->state = 8672 [L1603] s->init_num = 0 [L1604] tmp___10 = __VERIFIER_nondet_int() [L1605] COND FALSE !(! tmp___10) VAL [={0:-2147483648}, blastFlag=5, buf=null, got_new_session=1, init=1, ret=1073741824, s={1073741826:0}, s={1073741826:0}, skip=0, SSLv3_server_data={4:0}, state=8656, Time=7, tmp=7, tmp___1=0, tmp___10=2147483648, tmp___9=2147483648] [L1696] EXPR s->s3 [L1696] EXPR (s->s3)->tmp.reuse_message VAL [={0:-2147483648}, (s->s3)->tmp.reuse_message=-2147483648, blastFlag=5, buf=null, got_new_session=1, init=1, ret=1073741824, s={1073741826:0}, s={1073741826:0}, s->s3={-1073741822:0}, skip=0, SSLv3_server_data={4:0}, state=8656, Time=7, tmp=7, tmp___1=0, tmp___10=2147483648, tmp___9=2147483648] [L1696] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1725] skip = 0 VAL [={0:-2147483648}, blastFlag=5, buf=null, got_new_session=1, init=1, ret=1073741824, s={1073741826:0}, s={1073741826:0}, skip=0, SSLv3_server_data={4:0}, state=8656, Time=7, tmp=7, tmp___1=0, tmp___10=2147483648, tmp___9=2147483648] [L1166] COND TRUE 1 VAL [={0:-2147483648}, blastFlag=5, buf=null, got_new_session=1, init=1, ret=1073741824, s={1073741826:0}, s={1073741826:0}, skip=0, SSLv3_server_data={4:0}, state=8656, Time=7, tmp=7, tmp___1=0, tmp___10=2147483648, tmp___9=2147483648] [L1168] EXPR s->state [L1168] state = s->state [L1169] EXPR s->state VAL [={0:-2147483648}, blastFlag=5, buf=null, got_new_session=1, init=1, ret=1073741824, s={1073741826:0}, s={1073741826:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=7, tmp=7, tmp___1=0, tmp___10=2147483648, tmp___9=2147483648] [L1169] COND FALSE !(s->state == 12292) [L1172] EXPR s->state VAL [={0:-2147483648}, blastFlag=5, buf=null, got_new_session=1, init=1, ret=1073741824, s={1073741826:0}, s={1073741826:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=7, tmp=7, tmp___1=0, tmp___10=2147483648, tmp___9=2147483648] [L1172] COND FALSE !(s->state == 16384) [L1175] EXPR s->state VAL [={0:-2147483648}, blastFlag=5, buf=null, got_new_session=1, init=1, ret=1073741824, s={1073741826:0}, s={1073741826:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=7, tmp=7, tmp___1=0, tmp___10=2147483648, tmp___9=2147483648] [L1175] COND FALSE !(s->state == 8192) [L1178] EXPR s->state VAL [={0:-2147483648}, blastFlag=5, buf=null, got_new_session=1, init=1, ret=1073741824, s={1073741826:0}, s={1073741826:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=7, tmp=7, tmp___1=0, tmp___10=2147483648, tmp___9=2147483648] [L1178] COND FALSE !(s->state == 24576) [L1181] EXPR s->state VAL [={0:-2147483648}, blastFlag=5, buf=null, got_new_session=1, init=1, ret=1073741824, s={1073741826:0}, s={1073741826:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=7, tmp=7, tmp___1=0, tmp___10=2147483648, tmp___9=2147483648] [L1181] COND FALSE !(s->state == 8195) [L1184] EXPR s->state VAL [={0:-2147483648}, blastFlag=5, buf=null, got_new_session=1, init=1, ret=1073741824, s={1073741826:0}, s={1073741826:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=7, tmp=7, tmp___1=0, tmp___10=2147483648, tmp___9=2147483648] [L1184] COND FALSE !(s->state == 8480) [L1187] EXPR s->state VAL [={0:-2147483648}, blastFlag=5, buf=null, got_new_session=1, init=1, ret=1073741824, s={1073741826:0}, s={1073741826:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=7, tmp=7, tmp___1=0, tmp___10=2147483648, tmp___9=2147483648] [L1187] COND FALSE !(s->state == 8481) [L1190] EXPR s->state VAL [={0:-2147483648}, blastFlag=5, buf=null, got_new_session=1, init=1, ret=1073741824, s={1073741826:0}, s={1073741826:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=7, tmp=7, tmp___1=0, tmp___10=2147483648, tmp___9=2147483648] [L1190] COND FALSE !(s->state == 8482) [L1193] EXPR s->state VAL [={0:-2147483648}, blastFlag=5, buf=null, got_new_session=1, init=1, ret=1073741824, s={1073741826:0}, s={1073741826:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=7, tmp=7, tmp___1=0, tmp___10=2147483648, tmp___9=2147483648] [L1193] COND FALSE !(s->state == 8464) [L1196] EXPR s->state VAL [={0:-2147483648}, blastFlag=5, buf=null, got_new_session=1, init=1, ret=1073741824, s={1073741826:0}, s={1073741826:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=7, tmp=7, tmp___1=0, tmp___10=2147483648, tmp___9=2147483648] [L1196] COND FALSE !(s->state == 8465) [L1199] EXPR s->state VAL [={0:-2147483648}, blastFlag=5, buf=null, got_new_session=1, init=1, ret=1073741824, s={1073741826:0}, s={1073741826:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=7, tmp=7, tmp___1=0, tmp___10=2147483648, tmp___9=2147483648] [L1199] COND FALSE !(s->state == 8466) [L1202] EXPR s->state VAL [={0:-2147483648}, blastFlag=5, buf=null, got_new_session=1, init=1, ret=1073741824, s={1073741826:0}, s={1073741826:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=7, tmp=7, tmp___1=0, tmp___10=2147483648, tmp___9=2147483648] [L1202] COND FALSE !(s->state == 8496) [L1205] EXPR s->state VAL [={0:-2147483648}, blastFlag=5, buf=null, got_new_session=1, init=1, ret=1073741824, s={1073741826:0}, s={1073741826:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=7, tmp=7, tmp___1=0, tmp___10=2147483648, tmp___9=2147483648] [L1205] COND FALSE !(s->state == 8497) [L1208] EXPR s->state VAL [={0:-2147483648}, blastFlag=5, buf=null, got_new_session=1, init=1, ret=1073741824, s={1073741826:0}, s={1073741826:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=7, tmp=7, tmp___1=0, tmp___10=2147483648, tmp___9=2147483648] [L1208] COND FALSE !(s->state == 8512) [L1211] EXPR s->state VAL [={0:-2147483648}, blastFlag=5, buf=null, got_new_session=1, init=1, ret=1073741824, s={1073741826:0}, s={1073741826:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=7, tmp=7, tmp___1=0, tmp___10=2147483648, tmp___9=2147483648] [L1211] COND FALSE !(s->state == 8513) [L1214] EXPR s->state VAL [={0:-2147483648}, blastFlag=5, buf=null, got_new_session=1, init=1, ret=1073741824, s={1073741826:0}, s={1073741826:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=7, tmp=7, tmp___1=0, tmp___10=2147483648, tmp___9=2147483648] [L1214] COND FALSE !(s->state == 8528) [L1217] EXPR s->state VAL [={0:-2147483648}, blastFlag=5, buf=null, got_new_session=1, init=1, ret=1073741824, s={1073741826:0}, s={1073741826:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=7, tmp=7, tmp___1=0, tmp___10=2147483648, tmp___9=2147483648] [L1217] COND FALSE !(s->state == 8529) [L1220] EXPR s->state VAL [={0:-2147483648}, blastFlag=5, buf=null, got_new_session=1, init=1, ret=1073741824, s={1073741826:0}, s={1073741826:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=7, tmp=7, tmp___1=0, tmp___10=2147483648, tmp___9=2147483648] [L1220] COND FALSE !(s->state == 8544) [L1223] EXPR s->state VAL [={0:-2147483648}, blastFlag=5, buf=null, got_new_session=1, init=1, ret=1073741824, s={1073741826:0}, s={1073741826:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=7, tmp=7, tmp___1=0, tmp___10=2147483648, tmp___9=2147483648] [L1223] COND FALSE !(s->state == 8545) [L1226] EXPR s->state VAL [={0:-2147483648}, blastFlag=5, buf=null, got_new_session=1, init=1, ret=1073741824, s={1073741826:0}, s={1073741826:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=7, tmp=7, tmp___1=0, tmp___10=2147483648, tmp___9=2147483648] [L1226] COND FALSE !(s->state == 8560) [L1229] EXPR s->state VAL [={0:-2147483648}, blastFlag=5, buf=null, got_new_session=1, init=1, ret=1073741824, s={1073741826:0}, s={1073741826:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=7, tmp=7, tmp___1=0, tmp___10=2147483648, tmp___9=2147483648] [L1229] COND FALSE !(s->state == 8561) [L1232] EXPR s->state VAL [={0:-2147483648}, blastFlag=5, buf=null, got_new_session=1, init=1, ret=1073741824, s={1073741826:0}, s={1073741826:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=7, tmp=7, tmp___1=0, tmp___10=2147483648, tmp___9=2147483648] [L1232] COND FALSE !(s->state == 8448) [L1235] EXPR s->state VAL [={0:-2147483648}, blastFlag=5, buf=null, got_new_session=1, init=1, ret=1073741824, s={1073741826:0}, s={1073741826:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=7, tmp=7, tmp___1=0, tmp___10=2147483648, tmp___9=2147483648] [L1235] COND FALSE !(s->state == 8576) [L1238] EXPR s->state VAL [={0:-2147483648}, blastFlag=5, buf=null, got_new_session=1, init=1, ret=1073741824, s={1073741826:0}, s={1073741826:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=7, tmp=7, tmp___1=0, tmp___10=2147483648, tmp___9=2147483648] [L1238] COND FALSE !(s->state == 8577) [L1241] EXPR s->state VAL [={0:-2147483648}, blastFlag=5, buf=null, got_new_session=1, init=1, ret=1073741824, s={1073741826:0}, s={1073741826:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=7, tmp=7, tmp___1=0, tmp___10=2147483648, tmp___9=2147483648] [L1241] COND FALSE !(s->state == 8592) [L1244] EXPR s->state VAL [={0:-2147483648}, blastFlag=5, buf=null, got_new_session=1, init=1, ret=1073741824, s={1073741826:0}, s={1073741826:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=7, tmp=7, tmp___1=0, tmp___10=2147483648, tmp___9=2147483648] [L1244] COND FALSE !(s->state == 8593) [L1247] EXPR s->state VAL [={0:-2147483648}, blastFlag=5, buf=null, got_new_session=1, init=1, ret=1073741824, s={1073741826:0}, s={1073741826:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=7, tmp=7, tmp___1=0, tmp___10=2147483648, tmp___9=2147483648] [L1247] COND FALSE !(s->state == 8608) [L1250] EXPR s->state VAL [={0:-2147483648}, blastFlag=5, buf=null, got_new_session=1, init=1, ret=1073741824, s={1073741826:0}, s={1073741826:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=7, tmp=7, tmp___1=0, tmp___10=2147483648, tmp___9=2147483648] [L1250] COND FALSE !(s->state == 8609) [L1253] EXPR s->state VAL [={0:-2147483648}, blastFlag=5, buf=null, got_new_session=1, init=1, ret=1073741824, s={1073741826:0}, s={1073741826:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=7, tmp=7, tmp___1=0, tmp___10=2147483648, tmp___9=2147483648] [L1253] COND FALSE !(s->state == 8640) [L1256] EXPR s->state VAL [={0:-2147483648}, blastFlag=5, buf=null, got_new_session=1, init=1, ret=1073741824, s={1073741826:0}, s={1073741826:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=7, tmp=7, tmp___1=0, tmp___10=2147483648, tmp___9=2147483648] [L1256] COND FALSE !(s->state == 8641) [L1259] EXPR s->state VAL [={0:-2147483648}, blastFlag=5, buf=null, got_new_session=1, init=1, ret=1073741824, s={1073741826:0}, s={1073741826:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=7, tmp=7, tmp___1=0, tmp___10=2147483648, tmp___9=2147483648] [L1259] COND FALSE !(s->state == 8656) [L1262] EXPR s->state VAL [={0:-2147483648}, blastFlag=5, buf=null, got_new_session=1, init=1, ret=1073741824, s={1073741826:0}, s={1073741826:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=7, tmp=7, tmp___1=0, tmp___10=2147483648, tmp___9=2147483648] [L1262] COND FALSE !(s->state == 8657) [L1265] EXPR s->state VAL [={0:-2147483648}, blastFlag=5, buf=null, got_new_session=1, init=1, ret=1073741824, s={1073741826:0}, s={1073741826:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=7, tmp=7, tmp___1=0, tmp___10=2147483648, tmp___9=2147483648] [L1265] COND TRUE s->state == 8672 [L1614] ret = __VERIFIER_nondet_int() [L1615] COND FALSE !(blastFlag == 4) VAL [={0:-2147483648}, blastFlag=5, buf=null, got_new_session=1, init=1, ret=8, s={1073741826:0}, s={1073741826:0}, skip=0, SSLv3_server_data={4:0}, state=8672, Time=7, tmp=7, tmp___1=0, tmp___10=2147483648, tmp___9=2147483648] [L1618] COND TRUE blastFlag == 5 VAL [={0:-2147483648}, blastFlag=5, buf=null, got_new_session=1, init=1, ret=8, s={1073741826:0}, s={1073741826:0}, skip=0, SSLv3_server_data={4:0}, state=8672, Time=7, tmp=7, tmp___1=0, tmp___10=2147483648, tmp___9=2147483648] [L1737] reach_error() VAL [={0:-2147483648}, blastFlag=5, buf=null, got_new_session=1, init=1, ret=8, s={1073741826:0}, s={1073741826:0}, skip=0, SSLv3_server_data={4:0}, state=8672, Time=7, tmp=7, tmp___1=0, tmp___10=2147483648, tmp___9=2147483648] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 147 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 49.3s, OverallIterations: 6, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 31.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 3 mSolverCounterUnknown, 1231 SdHoareTripleChecker+Valid, 30.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1231 mSDsluCounter, 3447 SdHoareTripleChecker+Invalid, 29.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 62 IncrementalHoareTripleChecker+Unchecked, 2054 mSDsCounter, 50 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 485 IncrementalHoareTripleChecker+Invalid, 600 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 50 mSolverCounterUnsat, 1393 mSDtfsCounter, 485 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 978 GetRequests, 957 SyntacticMatches, 4 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=713occurred in iteration=5, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 108 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 4.3s SatisfiabilityAnalysisTime, 8.9s InterpolantComputationTime, 621 NumberOfCodeBlocks, 621 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 976 ConstructedInterpolants, 1 QuantifiedInterpolants, 3942 SizeOfPredicates, 18 NumberOfNonLiveVariables, 1352 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 636/636 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-11-20 06:27:37,820 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03000cb0-5f76-4d74-81d4-d6c7630f9dee/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE