./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+nlh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_ba67ea9e-f7a7-47ab-9900-2f9f5244985c/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_ba67ea9e-f7a7-47ab-9900-2f9f5244985c/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ba67ea9e-f7a7-47ab-9900-2f9f5244985c/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ba67ea9e-f7a7-47ab-9900-2f9f5244985c/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+nlh-reducer.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ba67ea9e-f7a7-47ab-9900-2f9f5244985c/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ba67ea9e-f7a7-47ab-9900-2f9f5244985c/bin/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7f777bc0851fa1e32aaa7ec1f7505f1f2e0a2d51 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-03 12:31:54,868 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-03 12:31:54,871 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-03 12:31:54,924 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-03 12:31:54,943 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-03 12:31:54,947 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-03 12:31:54,951 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-03 12:31:54,956 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-03 12:31:54,959 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-03 12:31:54,960 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-03 12:31:54,962 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-03 12:31:54,963 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-03 12:31:54,964 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-03 12:31:54,965 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-03 12:31:54,967 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-03 12:31:54,969 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-03 12:31:54,970 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-03 12:31:54,971 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-03 12:31:54,974 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-03 12:31:54,976 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-03 12:31:54,978 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-03 12:31:54,987 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-03 12:31:54,990 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-03 12:31:54,992 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-03 12:31:54,996 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-03 12:31:55,002 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-03 12:31:55,003 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-03 12:31:55,004 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-03 12:31:55,004 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-03 12:31:55,005 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-03 12:31:55,005 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-03 12:31:55,006 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-03 12:31:55,007 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-03 12:31:55,008 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-03 12:31:55,010 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-03 12:31:55,010 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-03 12:31:55,011 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-03 12:31:55,011 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-03 12:31:55,012 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-03 12:31:55,013 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-03 12:31:55,014 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-03 12:31:55,015 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ba67ea9e-f7a7-47ab-9900-2f9f5244985c/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-03 12:31:55,040 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-03 12:31:55,040 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-03 12:31:55,041 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-03 12:31:55,042 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-03 12:31:55,042 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-03 12:31:55,042 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-03 12:31:55,042 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-03 12:31:55,042 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-03 12:31:55,043 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-03 12:31:55,043 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-03 12:31:55,043 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-03 12:31:55,043 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-03 12:31:55,044 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-03 12:31:55,044 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-03 12:31:55,044 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-03 12:31:55,045 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-03 12:31:55,045 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-03 12:31:55,045 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-03 12:31:55,045 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-03 12:31:55,046 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-03 12:31:55,046 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-03 12:31:55,046 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-03 12:31:55,046 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-03 12:31:55,047 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-03 12:31:55,047 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-03 12:31:55,047 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-03 12:31:55,047 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-03 12:31:55,047 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-03 12:31:55,048 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-03 12:31:55,048 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-03 12:31:55,048 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-03 12:31:55,048 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-03 12:31:55,049 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-03 12:31:55,049 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-03 12:31:55,049 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-03 12:31:55,049 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-03 12:31:55,049 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-03 12:31:55,050 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-03 12:31:55,050 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-03 12:31:55,050 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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-vcloud-master/worker/run_dir_ba67ea9e-f7a7-47ab-9900-2f9f5244985c/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_ba67ea9e-f7a7-47ab-9900-2f9f5244985c/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7f777bc0851fa1e32aaa7ec1f7505f1f2e0a2d51 [2020-12-03 12:31:55,287 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-03 12:31:55,319 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-03 12:31:55,322 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-03 12:31:55,323 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-03 12:31:55,324 INFO L275 PluginConnector]: CDTParser initialized [2020-12-03 12:31:55,325 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ba67ea9e-f7a7-47ab-9900-2f9f5244985c/bin/utaipan/../../sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+nlh-reducer.c [2020-12-03 12:31:55,392 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ba67ea9e-f7a7-47ab-9900-2f9f5244985c/bin/utaipan/data/e6486a0bd/c2fd97901eed4f23b38ddb64805c4918/FLAGaddaee7de [2020-12-03 12:31:55,969 INFO L306 CDTParser]: Found 1 translation units. [2020-12-03 12:31:55,970 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ba67ea9e-f7a7-47ab-9900-2f9f5244985c/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+nlh-reducer.c [2020-12-03 12:31:55,994 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ba67ea9e-f7a7-47ab-9900-2f9f5244985c/bin/utaipan/data/e6486a0bd/c2fd97901eed4f23b38ddb64805c4918/FLAGaddaee7de [2020-12-03 12:31:56,251 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ba67ea9e-f7a7-47ab-9900-2f9f5244985c/bin/utaipan/data/e6486a0bd/c2fd97901eed4f23b38ddb64805c4918 [2020-12-03 12:31:56,254 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-03 12:31:56,257 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-03 12:31:56,264 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-03 12:31:56,264 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-03 12:31:56,269 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-03 12:31:56,270 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:31:56" (1/1) ... [2020-12-03 12:31:56,278 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65e7acbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:31:56, skipping insertion in model container [2020-12-03 12:31:56,278 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:31:56" (1/1) ... [2020-12-03 12:31:56,286 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-03 12:31:56,390 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-03 12:31:56,585 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_ba67ea9e-f7a7-47ab-9900-2f9f5244985c/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+nlh-reducer.c[901,914] [2020-12-03 12:31:56,590 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_ba67ea9e-f7a7-47ab-9900-2f9f5244985c/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+nlh-reducer.c[1116,1129] [2020-12-03 12:31:56,593 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_ba67ea9e-f7a7-47ab-9900-2f9f5244985c/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+nlh-reducer.c[1625,1638] [2020-12-03 12:31:56,602 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_ba67ea9e-f7a7-47ab-9900-2f9f5244985c/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+nlh-reducer.c[1840,1853] [2020-12-03 12:31:56,607 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_ba67ea9e-f7a7-47ab-9900-2f9f5244985c/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+nlh-reducer.c[2157,2170] [2020-12-03 12:31:56,608 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_ba67ea9e-f7a7-47ab-9900-2f9f5244985c/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+nlh-reducer.c[2372,2385] [2020-12-03 12:31:56,611 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_ba67ea9e-f7a7-47ab-9900-2f9f5244985c/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+nlh-reducer.c[2867,2880] [2020-12-03 12:31:56,613 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_ba67ea9e-f7a7-47ab-9900-2f9f5244985c/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+nlh-reducer.c[3082,3095] [2020-12-03 12:31:56,615 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_ba67ea9e-f7a7-47ab-9900-2f9f5244985c/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+nlh-reducer.c[3384,3397] [2020-12-03 12:31:56,617 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_ba67ea9e-f7a7-47ab-9900-2f9f5244985c/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+nlh-reducer.c[3602,3615] [2020-12-03 12:31:56,619 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_ba67ea9e-f7a7-47ab-9900-2f9f5244985c/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+nlh-reducer.c[3878,3891] [2020-12-03 12:31:56,624 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_ba67ea9e-f7a7-47ab-9900-2f9f5244985c/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+nlh-reducer.c[4096,4109] [2020-12-03 12:31:56,640 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_ba67ea9e-f7a7-47ab-9900-2f9f5244985c/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+nlh-reducer.c[4582,4595] [2020-12-03 12:31:56,643 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_ba67ea9e-f7a7-47ab-9900-2f9f5244985c/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+nlh-reducer.c[4800,4813] [2020-12-03 12:31:56,952 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_ba67ea9e-f7a7-47ab-9900-2f9f5244985c/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+nlh-reducer.c[47686,47699] [2020-12-03 12:31:56,957 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_ba67ea9e-f7a7-47ab-9900-2f9f5244985c/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+nlh-reducer.c[47907,47920] [2020-12-03 12:31:56,989 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-03 12:31:57,004 INFO L203 MainTranslator]: Completed pre-run [2020-12-03 12:31:57,030 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_ba67ea9e-f7a7-47ab-9900-2f9f5244985c/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+nlh-reducer.c[901,914] [2020-12-03 12:31:57,033 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_ba67ea9e-f7a7-47ab-9900-2f9f5244985c/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+nlh-reducer.c[1116,1129] [2020-12-03 12:31:57,034 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_ba67ea9e-f7a7-47ab-9900-2f9f5244985c/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+nlh-reducer.c[1625,1638] [2020-12-03 12:31:57,035 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_ba67ea9e-f7a7-47ab-9900-2f9f5244985c/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+nlh-reducer.c[1840,1853] [2020-12-03 12:31:57,036 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_ba67ea9e-f7a7-47ab-9900-2f9f5244985c/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+nlh-reducer.c[2157,2170] [2020-12-03 12:31:57,037 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_ba67ea9e-f7a7-47ab-9900-2f9f5244985c/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+nlh-reducer.c[2372,2385] [2020-12-03 12:31:57,039 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_ba67ea9e-f7a7-47ab-9900-2f9f5244985c/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+nlh-reducer.c[2867,2880] [2020-12-03 12:31:57,040 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_ba67ea9e-f7a7-47ab-9900-2f9f5244985c/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+nlh-reducer.c[3082,3095] [2020-12-03 12:31:57,041 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_ba67ea9e-f7a7-47ab-9900-2f9f5244985c/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+nlh-reducer.c[3384,3397] [2020-12-03 12:31:57,043 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_ba67ea9e-f7a7-47ab-9900-2f9f5244985c/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+nlh-reducer.c[3602,3615] [2020-12-03 12:31:57,044 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_ba67ea9e-f7a7-47ab-9900-2f9f5244985c/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+nlh-reducer.c[3878,3891] [2020-12-03 12:31:57,045 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_ba67ea9e-f7a7-47ab-9900-2f9f5244985c/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+nlh-reducer.c[4096,4109] [2020-12-03 12:31:57,047 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_ba67ea9e-f7a7-47ab-9900-2f9f5244985c/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+nlh-reducer.c[4582,4595] [2020-12-03 12:31:57,047 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_ba67ea9e-f7a7-47ab-9900-2f9f5244985c/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+nlh-reducer.c[4800,4813] [2020-12-03 12:31:57,197 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_ba67ea9e-f7a7-47ab-9900-2f9f5244985c/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+nlh-reducer.c[47686,47699] [2020-12-03 12:31:57,202 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_ba67ea9e-f7a7-47ab-9900-2f9f5244985c/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+nlh-reducer.c[47907,47920] [2020-12-03 12:31:57,210 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-03 12:31:57,224 INFO L208 MainTranslator]: Completed translation [2020-12-03 12:31:57,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:31:57 WrapperNode [2020-12-03 12:31:57,225 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-03 12:31:57,226 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-03 12:31:57,226 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-03 12:31:57,226 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-03 12:31:57,235 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:31:57" (1/1) ... [2020-12-03 12:31:57,258 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:31:57" (1/1) ... [2020-12-03 12:31:57,370 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-03 12:31:57,371 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-03 12:31:57,371 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-03 12:31:57,371 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-03 12:31:57,381 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:31:57" (1/1) ... [2020-12-03 12:31:57,381 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:31:57" (1/1) ... [2020-12-03 12:31:57,391 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:31:57" (1/1) ... [2020-12-03 12:31:57,391 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:31:57" (1/1) ... [2020-12-03 12:31:57,415 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:31:57" (1/1) ... [2020-12-03 12:31:57,428 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:31:57" (1/1) ... [2020-12-03 12:31:57,448 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:31:57" (1/1) ... [2020-12-03 12:31:57,474 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-03 12:31:57,475 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-03 12:31:57,475 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-03 12:31:57,475 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-03 12:31:57,486 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:31:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ba67ea9e-f7a7-47ab-9900-2f9f5244985c/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-03 12:31:57,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-03 12:31:57,597 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-03 12:31:57,597 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-03 12:31:57,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-03 12:31:59,397 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-03 12:31:59,397 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-03 12:31:59,402 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:31:59 BoogieIcfgContainer [2020-12-03 12:31:59,402 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-03 12:31:59,404 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-03 12:31:59,404 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-03 12:31:59,408 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-03 12:31:59,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.12 12:31:56" (1/3) ... [2020-12-03 12:31:59,409 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18ac36e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 12:31:59, skipping insertion in model container [2020-12-03 12:31:59,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:31:57" (2/3) ... [2020-12-03 12:31:59,410 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18ac36e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 12:31:59, skipping insertion in model container [2020-12-03 12:31:59,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:31:59" (3/3) ... [2020-12-03 12:31:59,411 INFO L111 eAbstractionObserver]: Analyzing ICFG apache-get-tag.i.p+nlh-reducer.c [2020-12-03 12:31:59,429 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-03 12:31:59,434 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 16 error locations. [2020-12-03 12:31:59,445 INFO L253 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2020-12-03 12:31:59,487 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-03 12:31:59,487 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-03 12:31:59,487 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-03 12:31:59,488 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-03 12:31:59,488 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-03 12:31:59,489 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-03 12:31:59,489 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-03 12:31:59,490 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-03 12:31:59,526 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states. [2020-12-03 12:31:59,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-03 12:31:59,531 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:31:59,531 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-03 12:31:59,532 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 12:31:59,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:31:59,537 INFO L82 PathProgramCache]: Analyzing trace with hash 1144680186, now seen corresponding path program 1 times [2020-12-03 12:31:59,547 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:31:59,547 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505517448] [2020-12-03 12:31:59,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:31:59,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:31:59,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:31:59,785 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505517448] [2020-12-03 12:31:59,786 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:31:59,786 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-03 12:31:59,787 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499105173] [2020-12-03 12:31:59,791 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-03 12:31:59,792 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:31:59,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-03 12:31:59,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-03 12:31:59,810 INFO L87 Difference]: Start difference. First operand 302 states. Second operand 4 states. [2020-12-03 12:32:00,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:32:00,779 INFO L93 Difference]: Finished difference Result 310 states and 568 transitions. [2020-12-03 12:32:00,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-03 12:32:00,781 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2020-12-03 12:32:00,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:32:00,817 INFO L225 Difference]: With dead ends: 310 [2020-12-03 12:32:00,819 INFO L226 Difference]: Without dead ends: 297 [2020-12-03 12:32:00,825 INFO L677 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 [2020-12-03 12:32:00,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2020-12-03 12:32:00,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 297. [2020-12-03 12:32:00,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 297 states. [2020-12-03 12:32:00,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 420 transitions. [2020-12-03 12:32:00,892 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 420 transitions. Word has length 6 [2020-12-03 12:32:00,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:32:00,897 INFO L481 AbstractCegarLoop]: Abstraction has 297 states and 420 transitions. [2020-12-03 12:32:00,897 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-03 12:32:00,897 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 420 transitions. [2020-12-03 12:32:00,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-03 12:32:00,898 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:32:00,898 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:32:00,898 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-03 12:32:00,899 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 12:32:00,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:32:00,899 INFO L82 PathProgramCache]: Analyzing trace with hash 1125351449, now seen corresponding path program 1 times [2020-12-03 12:32:00,900 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:32:00,900 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807538552] [2020-12-03 12:32:00,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:32:00,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:32:00,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:32:00,998 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807538552] [2020-12-03 12:32:00,998 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:32:00,999 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-03 12:32:01,000 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940668568] [2020-12-03 12:32:01,001 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-03 12:32:01,004 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:32:01,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-03 12:32:01,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-03 12:32:01,007 INFO L87 Difference]: Start difference. First operand 297 states and 420 transitions. Second operand 5 states. [2020-12-03 12:32:01,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:32:01,586 INFO L93 Difference]: Finished difference Result 304 states and 427 transitions. [2020-12-03 12:32:01,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-03 12:32:01,586 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2020-12-03 12:32:01,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:32:01,590 INFO L225 Difference]: With dead ends: 304 [2020-12-03 12:32:01,591 INFO L226 Difference]: Without dead ends: 299 [2020-12-03 12:32:01,592 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-03 12:32:01,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2020-12-03 12:32:01,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 292. [2020-12-03 12:32:01,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 292 states. [2020-12-03 12:32:01,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 355 transitions. [2020-12-03 12:32:01,610 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 355 transitions. Word has length 7 [2020-12-03 12:32:01,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:32:01,610 INFO L481 AbstractCegarLoop]: Abstraction has 292 states and 355 transitions. [2020-12-03 12:32:01,610 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-03 12:32:01,610 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 355 transitions. [2020-12-03 12:32:01,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-03 12:32:01,611 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:32:01,611 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:32:01,611 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-03 12:32:01,612 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 12:32:01,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:32:01,612 INFO L82 PathProgramCache]: Analyzing trace with hash 1144463368, now seen corresponding path program 1 times [2020-12-03 12:32:01,613 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:32:01,613 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193485563] [2020-12-03 12:32:01,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:32:01,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:32:01,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:32:01,660 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193485563] [2020-12-03 12:32:01,660 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:32:01,661 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-03 12:32:01,661 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238945779] [2020-12-03 12:32:01,661 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-03 12:32:01,661 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:32:01,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-03 12:32:01,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-03 12:32:01,663 INFO L87 Difference]: Start difference. First operand 292 states and 355 transitions. Second operand 4 states. [2020-12-03 12:32:02,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:32:02,188 INFO L93 Difference]: Finished difference Result 292 states and 355 transitions. [2020-12-03 12:32:02,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-03 12:32:02,188 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-12-03 12:32:02,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:32:02,191 INFO L225 Difference]: With dead ends: 292 [2020-12-03 12:32:02,192 INFO L226 Difference]: Without dead ends: 290 [2020-12-03 12:32:02,192 INFO L677 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 [2020-12-03 12:32:02,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2020-12-03 12:32:02,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 290. [2020-12-03 12:32:02,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 290 states. [2020-12-03 12:32:02,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 353 transitions. [2020-12-03 12:32:02,214 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 353 transitions. Word has length 7 [2020-12-03 12:32:02,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:32:02,215 INFO L481 AbstractCegarLoop]: Abstraction has 290 states and 353 transitions. [2020-12-03 12:32:02,215 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-03 12:32:02,215 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 353 transitions. [2020-12-03 12:32:02,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-03 12:32:02,216 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:32:02,216 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:32:02,216 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-03 12:32:02,216 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 12:32:02,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:32:02,228 INFO L82 PathProgramCache]: Analyzing trace with hash 1118630114, now seen corresponding path program 1 times [2020-12-03 12:32:02,229 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:32:02,229 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876248609] [2020-12-03 12:32:02,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:32:02,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:32:02,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:32:02,281 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876248609] [2020-12-03 12:32:02,281 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:32:02,282 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-03 12:32:02,282 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783289188] [2020-12-03 12:32:02,282 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-03 12:32:02,282 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:32:02,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-03 12:32:02,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-03 12:32:02,284 INFO L87 Difference]: Start difference. First operand 290 states and 353 transitions. Second operand 4 states. [2020-12-03 12:32:02,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:32:02,681 INFO L93 Difference]: Finished difference Result 295 states and 358 transitions. [2020-12-03 12:32:02,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-03 12:32:02,682 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2020-12-03 12:32:02,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:32:02,684 INFO L225 Difference]: With dead ends: 295 [2020-12-03 12:32:02,685 INFO L226 Difference]: Without dead ends: 293 [2020-12-03 12:32:02,685 INFO L677 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 [2020-12-03 12:32:02,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2020-12-03 12:32:02,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 293. [2020-12-03 12:32:02,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 293 states. [2020-12-03 12:32:02,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 356 transitions. [2020-12-03 12:32:02,701 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 356 transitions. Word has length 8 [2020-12-03 12:32:02,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:32:02,701 INFO L481 AbstractCegarLoop]: Abstraction has 293 states and 356 transitions. [2020-12-03 12:32:02,701 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-03 12:32:02,701 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 356 transitions. [2020-12-03 12:32:02,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-03 12:32:02,703 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:32:02,703 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:32:02,703 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-03 12:32:02,703 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 12:32:02,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:32:02,704 INFO L82 PathProgramCache]: Analyzing trace with hash 1261843174, now seen corresponding path program 1 times [2020-12-03 12:32:02,704 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:32:02,705 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634961098] [2020-12-03 12:32:02,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:32:02,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:32:02,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:32:02,795 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634961098] [2020-12-03 12:32:02,796 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:32:02,796 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-03 12:32:02,796 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127782866] [2020-12-03 12:32:02,796 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-03 12:32:02,797 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:32:02,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-03 12:32:02,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-03 12:32:02,798 INFO L87 Difference]: Start difference. First operand 293 states and 356 transitions. Second operand 5 states. [2020-12-03 12:32:03,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:32:03,515 INFO L93 Difference]: Finished difference Result 293 states and 356 transitions. [2020-12-03 12:32:03,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-03 12:32:03,516 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-12-03 12:32:03,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:32:03,518 INFO L225 Difference]: With dead ends: 293 [2020-12-03 12:32:03,518 INFO L226 Difference]: Without dead ends: 291 [2020-12-03 12:32:03,519 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-03 12:32:03,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2020-12-03 12:32:03,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 291. [2020-12-03 12:32:03,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 291 states. [2020-12-03 12:32:03,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 354 transitions. [2020-12-03 12:32:03,530 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 354 transitions. Word has length 10 [2020-12-03 12:32:03,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:32:03,531 INFO L481 AbstractCegarLoop]: Abstraction has 291 states and 354 transitions. [2020-12-03 12:32:03,531 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-03 12:32:03,531 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 354 transitions. [2020-12-03 12:32:03,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-03 12:32:03,532 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:32:03,532 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:32:03,532 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-03 12:32:03,533 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 12:32:03,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:32:03,540 INFO L82 PathProgramCache]: Analyzing trace with hash 462436822, now seen corresponding path program 1 times [2020-12-03 12:32:03,540 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:32:03,541 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101634911] [2020-12-03 12:32:03,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:32:03,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:32:03,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:32:03,609 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101634911] [2020-12-03 12:32:03,609 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:32:03,609 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-03 12:32:03,609 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039513853] [2020-12-03 12:32:03,610 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-03 12:32:03,610 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:32:03,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-03 12:32:03,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-03 12:32:03,611 INFO L87 Difference]: Start difference. First operand 291 states and 354 transitions. Second operand 4 states. [2020-12-03 12:32:04,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:32:04,035 INFO L93 Difference]: Finished difference Result 291 states and 354 transitions. [2020-12-03 12:32:04,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-03 12:32:04,035 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-12-03 12:32:04,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:32:04,037 INFO L225 Difference]: With dead ends: 291 [2020-12-03 12:32:04,037 INFO L226 Difference]: Without dead ends: 287 [2020-12-03 12:32:04,038 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-03 12:32:04,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2020-12-03 12:32:04,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 287. [2020-12-03 12:32:04,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 287 states. [2020-12-03 12:32:04,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 350 transitions. [2020-12-03 12:32:04,046 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 350 transitions. Word has length 11 [2020-12-03 12:32:04,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:32:04,047 INFO L481 AbstractCegarLoop]: Abstraction has 287 states and 350 transitions. [2020-12-03 12:32:04,047 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-03 12:32:04,047 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 350 transitions. [2020-12-03 12:32:04,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-03 12:32:04,048 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:32:04,048 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:32:04,048 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-03 12:32:04,048 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 12:32:04,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:32:04,049 INFO L82 PathProgramCache]: Analyzing trace with hash -959031714, now seen corresponding path program 1 times [2020-12-03 12:32:04,049 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:32:04,050 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722863095] [2020-12-03 12:32:04,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:32:04,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:32:04,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:32:04,203 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722863095] [2020-12-03 12:32:04,204 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:32:04,204 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-03 12:32:04,205 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031125566] [2020-12-03 12:32:04,205 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-03 12:32:04,205 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:32:04,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-03 12:32:04,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-03 12:32:04,206 INFO L87 Difference]: Start difference. First operand 287 states and 350 transitions. Second operand 6 states. [2020-12-03 12:32:04,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:32:04,843 INFO L93 Difference]: Finished difference Result 315 states and 380 transitions. [2020-12-03 12:32:04,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-03 12:32:04,843 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12 [2020-12-03 12:32:04,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:32:04,846 INFO L225 Difference]: With dead ends: 315 [2020-12-03 12:32:04,846 INFO L226 Difference]: Without dead ends: 313 [2020-12-03 12:32:04,847 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-03 12:32:04,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2020-12-03 12:32:04,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 287. [2020-12-03 12:32:04,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 287 states. [2020-12-03 12:32:04,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 350 transitions. [2020-12-03 12:32:04,856 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 350 transitions. Word has length 12 [2020-12-03 12:32:04,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:32:04,856 INFO L481 AbstractCegarLoop]: Abstraction has 287 states and 350 transitions. [2020-12-03 12:32:04,857 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-03 12:32:04,857 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 350 transitions. [2020-12-03 12:32:04,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-03 12:32:04,858 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:32:04,858 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:32:04,862 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-03 12:32:04,863 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 12:32:04,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:32:04,863 INFO L82 PathProgramCache]: Analyzing trace with hash 1465785465, now seen corresponding path program 1 times [2020-12-03 12:32:04,863 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:32:04,864 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823229773] [2020-12-03 12:32:04,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:32:04,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:32:04,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:32:04,945 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823229773] [2020-12-03 12:32:04,945 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:32:04,945 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-03 12:32:04,946 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594558925] [2020-12-03 12:32:04,946 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-03 12:32:04,946 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:32:04,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-03 12:32:04,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-03 12:32:04,947 INFO L87 Difference]: Start difference. First operand 287 states and 350 transitions. Second operand 5 states. [2020-12-03 12:32:05,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:32:05,650 INFO L93 Difference]: Finished difference Result 307 states and 372 transitions. [2020-12-03 12:32:05,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-03 12:32:05,651 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-12-03 12:32:05,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:32:05,652 INFO L225 Difference]: With dead ends: 307 [2020-12-03 12:32:05,654 INFO L226 Difference]: Without dead ends: 305 [2020-12-03 12:32:05,654 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-03 12:32:05,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2020-12-03 12:32:05,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 285. [2020-12-03 12:32:05,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 285 states. [2020-12-03 12:32:05,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 348 transitions. [2020-12-03 12:32:05,663 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 348 transitions. Word has length 12 [2020-12-03 12:32:05,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:32:05,663 INFO L481 AbstractCegarLoop]: Abstraction has 285 states and 348 transitions. [2020-12-03 12:32:05,663 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-03 12:32:05,663 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 348 transitions. [2020-12-03 12:32:05,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-03 12:32:05,665 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:32:05,665 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:32:05,665 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-03 12:32:05,665 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 12:32:05,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:32:05,669 INFO L82 PathProgramCache]: Analyzing trace with hash 1467509369, now seen corresponding path program 1 times [2020-12-03 12:32:05,669 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:32:05,670 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941722699] [2020-12-03 12:32:05,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:32:05,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:32:05,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:32:05,741 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941722699] [2020-12-03 12:32:05,742 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:32:05,742 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-03 12:32:05,742 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881897943] [2020-12-03 12:32:05,742 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-03 12:32:05,742 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:32:05,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-03 12:32:05,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-03 12:32:05,745 INFO L87 Difference]: Start difference. First operand 285 states and 348 transitions. Second operand 5 states. [2020-12-03 12:32:06,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:32:06,369 INFO L93 Difference]: Finished difference Result 288 states and 351 transitions. [2020-12-03 12:32:06,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-03 12:32:06,369 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-12-03 12:32:06,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:32:06,371 INFO L225 Difference]: With dead ends: 288 [2020-12-03 12:32:06,371 INFO L226 Difference]: Without dead ends: 286 [2020-12-03 12:32:06,372 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-03 12:32:06,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2020-12-03 12:32:06,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 283. [2020-12-03 12:32:06,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 283 states. [2020-12-03 12:32:06,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 346 transitions. [2020-12-03 12:32:06,380 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 346 transitions. Word has length 12 [2020-12-03 12:32:06,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:32:06,411 INFO L481 AbstractCegarLoop]: Abstraction has 283 states and 346 transitions. [2020-12-03 12:32:06,411 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-03 12:32:06,411 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 346 transitions. [2020-12-03 12:32:06,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-03 12:32:06,412 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:32:06,412 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:32:06,412 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-03 12:32:06,412 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 12:32:06,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:32:06,413 INFO L82 PathProgramCache]: Analyzing trace with hash -1805286727, now seen corresponding path program 1 times [2020-12-03 12:32:06,413 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:32:06,413 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978510756] [2020-12-03 12:32:06,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:32:06,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:32:06,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:32:06,515 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978510756] [2020-12-03 12:32:06,515 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:32:06,515 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-03 12:32:06,516 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281059726] [2020-12-03 12:32:06,516 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-03 12:32:06,517 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:32:06,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-03 12:32:06,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-03 12:32:06,518 INFO L87 Difference]: Start difference. First operand 283 states and 346 transitions. Second operand 6 states. [2020-12-03 12:32:07,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:32:07,100 INFO L93 Difference]: Finished difference Result 321 states and 388 transitions. [2020-12-03 12:32:07,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-03 12:32:07,101 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2020-12-03 12:32:07,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:32:07,103 INFO L225 Difference]: With dead ends: 321 [2020-12-03 12:32:07,104 INFO L226 Difference]: Without dead ends: 319 [2020-12-03 12:32:07,104 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-12-03 12:32:07,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2020-12-03 12:32:07,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 291. [2020-12-03 12:32:07,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 291 states. [2020-12-03 12:32:07,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 356 transitions. [2020-12-03 12:32:07,117 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 356 transitions. Word has length 13 [2020-12-03 12:32:07,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:32:07,117 INFO L481 AbstractCegarLoop]: Abstraction has 291 states and 356 transitions. [2020-12-03 12:32:07,117 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-03 12:32:07,118 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 356 transitions. [2020-12-03 12:32:07,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-03 12:32:07,123 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:32:07,123 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:32:07,123 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-03 12:32:07,123 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 12:32:07,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:32:07,124 INFO L82 PathProgramCache]: Analyzing trace with hash -1803739582, now seen corresponding path program 1 times [2020-12-03 12:32:07,124 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:32:07,124 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314838780] [2020-12-03 12:32:07,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:32:07,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:32:07,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:32:07,187 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314838780] [2020-12-03 12:32:07,188 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:32:07,188 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-03 12:32:07,188 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430597147] [2020-12-03 12:32:07,188 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-03 12:32:07,188 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:32:07,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-03 12:32:07,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-03 12:32:07,190 INFO L87 Difference]: Start difference. First operand 291 states and 356 transitions. Second operand 5 states. [2020-12-03 12:32:07,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:32:07,890 INFO L93 Difference]: Finished difference Result 311 states and 378 transitions. [2020-12-03 12:32:07,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-03 12:32:07,891 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-12-03 12:32:07,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:32:07,894 INFO L225 Difference]: With dead ends: 311 [2020-12-03 12:32:07,895 INFO L226 Difference]: Without dead ends: 309 [2020-12-03 12:32:07,901 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-03 12:32:07,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2020-12-03 12:32:07,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 289. [2020-12-03 12:32:07,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 289 states. [2020-12-03 12:32:07,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 354 transitions. [2020-12-03 12:32:07,911 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 354 transitions. Word has length 13 [2020-12-03 12:32:07,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:32:07,912 INFO L481 AbstractCegarLoop]: Abstraction has 289 states and 354 transitions. [2020-12-03 12:32:07,912 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-03 12:32:07,912 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 354 transitions. [2020-12-03 12:32:07,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-03 12:32:07,913 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:32:07,913 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:32:07,913 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-03 12:32:07,914 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 12:32:07,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:32:07,914 INFO L82 PathProgramCache]: Analyzing trace with hash -1751845647, now seen corresponding path program 1 times [2020-12-03 12:32:07,914 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:32:07,915 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571990731] [2020-12-03 12:32:07,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:32:07,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:32:08,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:32:08,036 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571990731] [2020-12-03 12:32:08,036 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:32:08,036 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-03 12:32:08,036 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684608975] [2020-12-03 12:32:08,037 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-03 12:32:08,037 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:32:08,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-03 12:32:08,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-03 12:32:08,038 INFO L87 Difference]: Start difference. First operand 289 states and 354 transitions. Second operand 6 states. [2020-12-03 12:32:08,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:32:08,554 INFO L93 Difference]: Finished difference Result 299 states and 364 transitions. [2020-12-03 12:32:08,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-03 12:32:08,554 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2020-12-03 12:32:08,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:32:08,556 INFO L225 Difference]: With dead ends: 299 [2020-12-03 12:32:08,556 INFO L226 Difference]: Without dead ends: 295 [2020-12-03 12:32:08,557 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-12-03 12:32:08,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2020-12-03 12:32:08,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 290. [2020-12-03 12:32:08,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 290 states. [2020-12-03 12:32:08,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 355 transitions. [2020-12-03 12:32:08,566 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 355 transitions. Word has length 13 [2020-12-03 12:32:08,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:32:08,566 INFO L481 AbstractCegarLoop]: Abstraction has 290 states and 355 transitions. [2020-12-03 12:32:08,566 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-03 12:32:08,566 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 355 transitions. [2020-12-03 12:32:08,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-03 12:32:08,567 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:32:08,567 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:32:08,567 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-03 12:32:08,567 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 12:32:08,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:32:08,568 INFO L82 PathProgramCache]: Analyzing trace with hash -81348045, now seen corresponding path program 1 times [2020-12-03 12:32:08,568 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:32:08,568 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814176858] [2020-12-03 12:32:08,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:32:08,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:32:08,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:32:08,661 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814176858] [2020-12-03 12:32:08,661 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:32:08,662 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-03 12:32:08,662 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202137680] [2020-12-03 12:32:08,662 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-03 12:32:08,662 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:32:08,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-03 12:32:08,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-03 12:32:08,663 INFO L87 Difference]: Start difference. First operand 290 states and 355 transitions. Second operand 6 states. [2020-12-03 12:32:09,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:32:09,225 INFO L93 Difference]: Finished difference Result 316 states and 383 transitions. [2020-12-03 12:32:09,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-03 12:32:09,226 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-12-03 12:32:09,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:32:09,228 INFO L225 Difference]: With dead ends: 316 [2020-12-03 12:32:09,228 INFO L226 Difference]: Without dead ends: 314 [2020-12-03 12:32:09,229 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-12-03 12:32:09,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2020-12-03 12:32:09,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 293. [2020-12-03 12:32:09,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 293 states. [2020-12-03 12:32:09,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 358 transitions. [2020-12-03 12:32:09,238 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 358 transitions. Word has length 14 [2020-12-03 12:32:09,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:32:09,238 INFO L481 AbstractCegarLoop]: Abstraction has 293 states and 358 transitions. [2020-12-03 12:32:09,239 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-03 12:32:09,239 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 358 transitions. [2020-12-03 12:32:09,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-03 12:32:09,239 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:32:09,239 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:32:09,239 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-03 12:32:09,240 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 12:32:09,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:32:09,240 INFO L82 PathProgramCache]: Analyzing trace with hash 286370844, now seen corresponding path program 1 times [2020-12-03 12:32:09,241 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:32:09,241 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482946646] [2020-12-03 12:32:09,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:32:09,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:32:09,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:32:09,293 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482946646] [2020-12-03 12:32:09,293 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:32:09,294 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-03 12:32:09,294 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726982421] [2020-12-03 12:32:09,294 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-03 12:32:09,294 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:32:09,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-03 12:32:09,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-03 12:32:09,295 INFO L87 Difference]: Start difference. First operand 293 states and 358 transitions. Second operand 4 states. [2020-12-03 12:32:09,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:32:09,549 INFO L93 Difference]: Finished difference Result 293 states and 358 transitions. [2020-12-03 12:32:09,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-03 12:32:09,550 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-12-03 12:32:09,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:32:09,552 INFO L225 Difference]: With dead ends: 293 [2020-12-03 12:32:09,552 INFO L226 Difference]: Without dead ends: 291 [2020-12-03 12:32:09,553 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-03 12:32:09,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2020-12-03 12:32:09,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 291. [2020-12-03 12:32:09,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 291 states. [2020-12-03 12:32:09,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 356 transitions. [2020-12-03 12:32:09,561 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 356 transitions. Word has length 15 [2020-12-03 12:32:09,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:32:09,562 INFO L481 AbstractCegarLoop]: Abstraction has 291 states and 356 transitions. [2020-12-03 12:32:09,562 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-03 12:32:09,562 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 356 transitions. [2020-12-03 12:32:09,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-03 12:32:09,563 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:32:09,563 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:32:09,563 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-03 12:32:09,563 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 12:32:09,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:32:09,564 INFO L82 PathProgramCache]: Analyzing trace with hash 15602792, now seen corresponding path program 1 times [2020-12-03 12:32:09,564 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:32:09,564 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325118624] [2020-12-03 12:32:09,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:32:09,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:32:09,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:32:09,621 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325118624] [2020-12-03 12:32:09,622 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:32:09,622 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-03 12:32:09,622 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636446279] [2020-12-03 12:32:09,622 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-03 12:32:09,622 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:32:09,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-03 12:32:09,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-03 12:32:09,623 INFO L87 Difference]: Start difference. First operand 291 states and 356 transitions. Second operand 6 states. [2020-12-03 12:32:10,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:32:10,285 INFO L93 Difference]: Finished difference Result 291 states and 356 transitions. [2020-12-03 12:32:10,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-03 12:32:10,286 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-12-03 12:32:10,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:32:10,288 INFO L225 Difference]: With dead ends: 291 [2020-12-03 12:32:10,288 INFO L226 Difference]: Without dead ends: 289 [2020-12-03 12:32:10,290 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-03 12:32:10,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2020-12-03 12:32:10,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 286. [2020-12-03 12:32:10,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 286 states. [2020-12-03 12:32:10,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 351 transitions. [2020-12-03 12:32:10,299 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 351 transitions. Word has length 16 [2020-12-03 12:32:10,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:32:10,300 INFO L481 AbstractCegarLoop]: Abstraction has 286 states and 351 transitions. [2020-12-03 12:32:10,300 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-03 12:32:10,300 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 351 transitions. [2020-12-03 12:32:10,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-03 12:32:10,300 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:32:10,300 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:32:10,301 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-03 12:32:10,302 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 12:32:10,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:32:10,303 INFO L82 PathProgramCache]: Analyzing trace with hash 287565703, now seen corresponding path program 1 times [2020-12-03 12:32:10,303 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:32:10,303 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364335552] [2020-12-03 12:32:10,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:32:10,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:32:10,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:32:10,343 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364335552] [2020-12-03 12:32:10,345 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:32:10,345 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-03 12:32:10,346 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546586733] [2020-12-03 12:32:10,346 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-03 12:32:10,346 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:32:10,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-03 12:32:10,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-03 12:32:10,349 INFO L87 Difference]: Start difference. First operand 286 states and 351 transitions. Second operand 4 states. [2020-12-03 12:32:10,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:32:10,701 INFO L93 Difference]: Finished difference Result 286 states and 351 transitions. [2020-12-03 12:32:10,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-03 12:32:10,702 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-12-03 12:32:10,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:32:10,704 INFO L225 Difference]: With dead ends: 286 [2020-12-03 12:32:10,704 INFO L226 Difference]: Without dead ends: 282 [2020-12-03 12:32:10,705 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-03 12:32:10,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2020-12-03 12:32:10,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 282. [2020-12-03 12:32:10,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2020-12-03 12:32:10,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 347 transitions. [2020-12-03 12:32:10,714 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 347 transitions. Word has length 16 [2020-12-03 12:32:10,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:32:10,714 INFO L481 AbstractCegarLoop]: Abstraction has 282 states and 347 transitions. [2020-12-03 12:32:10,714 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-03 12:32:10,714 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 347 transitions. [2020-12-03 12:32:10,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-03 12:32:10,715 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:32:10,715 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:32:10,715 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-12-03 12:32:10,715 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 12:32:10,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:32:10,716 INFO L82 PathProgramCache]: Analyzing trace with hash 1860971197, now seen corresponding path program 1 times [2020-12-03 12:32:10,716 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:32:10,716 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147770743] [2020-12-03 12:32:10,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:32:10,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:32:10,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:32:10,795 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147770743] [2020-12-03 12:32:10,795 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:32:10,795 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-03 12:32:10,795 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685660995] [2020-12-03 12:32:10,796 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-03 12:32:10,796 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:32:10,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-03 12:32:10,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-03 12:32:10,797 INFO L87 Difference]: Start difference. First operand 282 states and 347 transitions. Second operand 6 states. [2020-12-03 12:32:11,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:32:11,382 INFO L93 Difference]: Finished difference Result 296 states and 363 transitions. [2020-12-03 12:32:11,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-03 12:32:11,383 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-12-03 12:32:11,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:32:11,384 INFO L225 Difference]: With dead ends: 296 [2020-12-03 12:32:11,384 INFO L226 Difference]: Without dead ends: 294 [2020-12-03 12:32:11,385 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-03 12:32:11,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-12-03 12:32:11,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 278. [2020-12-03 12:32:11,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2020-12-03 12:32:11,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 343 transitions. [2020-12-03 12:32:11,395 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 343 transitions. Word has length 17 [2020-12-03 12:32:11,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:32:11,395 INFO L481 AbstractCegarLoop]: Abstraction has 278 states and 343 transitions. [2020-12-03 12:32:11,395 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-03 12:32:11,395 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 343 transitions. [2020-12-03 12:32:11,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-03 12:32:11,396 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:32:11,396 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:32:11,396 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-12-03 12:32:11,397 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 12:32:11,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:32:11,397 INFO L82 PathProgramCache]: Analyzing trace with hash 1914412277, now seen corresponding path program 1 times [2020-12-03 12:32:11,397 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:32:11,397 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528207807] [2020-12-03 12:32:11,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:32:11,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:32:11,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:32:11,469 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528207807] [2020-12-03 12:32:11,469 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:32:11,469 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-03 12:32:11,470 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323691653] [2020-12-03 12:32:11,470 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-03 12:32:11,470 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:32:11,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-03 12:32:11,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-03 12:32:11,471 INFO L87 Difference]: Start difference. First operand 278 states and 343 transitions. Second operand 6 states. [2020-12-03 12:32:12,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:32:12,049 INFO L93 Difference]: Finished difference Result 278 states and 343 transitions. [2020-12-03 12:32:12,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-03 12:32:12,050 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-12-03 12:32:12,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:32:12,052 INFO L225 Difference]: With dead ends: 278 [2020-12-03 12:32:12,052 INFO L226 Difference]: Without dead ends: 274 [2020-12-03 12:32:12,053 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-03 12:32:12,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2020-12-03 12:32:12,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 274. [2020-12-03 12:32:12,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 274 states. [2020-12-03 12:32:12,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 339 transitions. [2020-12-03 12:32:12,061 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 339 transitions. Word has length 17 [2020-12-03 12:32:12,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:32:12,062 INFO L481 AbstractCegarLoop]: Abstraction has 274 states and 339 transitions. [2020-12-03 12:32:12,062 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-03 12:32:12,062 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 339 transitions. [2020-12-03 12:32:12,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-03 12:32:12,063 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:32:12,063 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:32:12,063 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-12-03 12:32:12,063 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 12:32:12,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:32:12,064 INFO L82 PathProgramCache]: Analyzing trace with hash 339721299, now seen corresponding path program 1 times [2020-12-03 12:32:12,064 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:32:12,064 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397432720] [2020-12-03 12:32:12,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:32:12,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:32:12,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:32:12,120 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397432720] [2020-12-03 12:32:12,120 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:32:12,120 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-03 12:32:12,120 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850346318] [2020-12-03 12:32:12,121 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-03 12:32:12,121 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:32:12,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-03 12:32:12,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-03 12:32:12,122 INFO L87 Difference]: Start difference. First operand 274 states and 339 transitions. Second operand 6 states. [2020-12-03 12:32:12,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:32:12,702 INFO L93 Difference]: Finished difference Result 283 states and 350 transitions. [2020-12-03 12:32:12,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-03 12:32:12,712 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-12-03 12:32:12,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:32:12,713 INFO L225 Difference]: With dead ends: 283 [2020-12-03 12:32:12,713 INFO L226 Difference]: Without dead ends: 249 [2020-12-03 12:32:12,714 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-03 12:32:12,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2020-12-03 12:32:12,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 249. [2020-12-03 12:32:12,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2020-12-03 12:32:12,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 249 transitions. [2020-12-03 12:32:12,720 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 249 transitions. Word has length 17 [2020-12-03 12:32:12,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:32:12,720 INFO L481 AbstractCegarLoop]: Abstraction has 249 states and 249 transitions. [2020-12-03 12:32:12,720 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-03 12:32:12,721 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 249 transitions. [2020-12-03 12:32:12,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2020-12-03 12:32:12,726 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:32:12,726 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:32:12,726 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-12-03 12:32:12,726 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 12:32:12,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:32:12,727 INFO L82 PathProgramCache]: Analyzing trace with hash -1536774122, now seen corresponding path program 1 times [2020-12-03 12:32:12,727 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:32:12,727 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638036156] [2020-12-03 12:32:12,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:32:12,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:32:15,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:32:15,205 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638036156] [2020-12-03 12:32:15,205 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:32:15,205 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [63] imperfect sequences [] total 63 [2020-12-03 12:32:15,206 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104151493] [2020-12-03 12:32:15,206 INFO L461 AbstractCegarLoop]: Interpolant automaton has 63 states [2020-12-03 12:32:15,207 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:32:15,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2020-12-03 12:32:15,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1834, Invalid=2072, Unknown=0, NotChecked=0, Total=3906 [2020-12-03 12:32:15,210 INFO L87 Difference]: Start difference. First operand 249 states and 249 transitions. Second operand 63 states. [2020-12-03 12:32:16,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:32:16,524 INFO L93 Difference]: Finished difference Result 250 states and 250 transitions. [2020-12-03 12:32:16,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2020-12-03 12:32:16,525 INFO L78 Accepts]: Start accepts. Automaton has 63 states. Word has length 243 [2020-12-03 12:32:16,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:32:16,527 INFO L225 Difference]: With dead ends: 250 [2020-12-03 12:32:16,527 INFO L226 Difference]: Without dead ends: 248 [2020-12-03 12:32:16,529 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=1896, Invalid=2136, Unknown=0, NotChecked=0, Total=4032 [2020-12-03 12:32:16,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2020-12-03 12:32:16,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 247. [2020-12-03 12:32:16,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 247 states. [2020-12-03 12:32:16,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 247 transitions. [2020-12-03 12:32:16,534 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 247 transitions. Word has length 243 [2020-12-03 12:32:16,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:32:16,535 INFO L481 AbstractCegarLoop]: Abstraction has 247 states and 247 transitions. [2020-12-03 12:32:16,535 INFO L482 AbstractCegarLoop]: Interpolant automaton has 63 states. [2020-12-03 12:32:16,535 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 247 transitions. [2020-12-03 12:32:16,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2020-12-03 12:32:16,538 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:32:16,539 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:32:16,539 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-12-03 12:32:16,539 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 12:32:16,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:32:16,540 INFO L82 PathProgramCache]: Analyzing trace with hash -395352156, now seen corresponding path program 1 times [2020-12-03 12:32:16,540 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-03 12:32:16,540 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570597796] [2020-12-03 12:32:16,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-03 12:32:16,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:32:17,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:32:17,495 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570597796] [2020-12-03 12:32:17,495 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:32:17,496 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-03 12:32:17,496 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121359575] [2020-12-03 12:32:17,496 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-03 12:32:17,496 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-03 12:32:17,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-03 12:32:17,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-12-03 12:32:17,497 INFO L87 Difference]: Start difference. First operand 247 states and 247 transitions. Second operand 7 states. [2020-12-03 12:32:18,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:32:18,016 INFO L93 Difference]: Finished difference Result 249 states and 249 transitions. [2020-12-03 12:32:18,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-03 12:32:18,017 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 244 [2020-12-03 12:32:18,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:32:18,018 INFO L225 Difference]: With dead ends: 249 [2020-12-03 12:32:18,018 INFO L226 Difference]: Without dead ends: 0 [2020-12-03 12:32:18,019 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 114 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-03 12:32:18,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-03 12:32:18,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-03 12:32:18,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-03 12:32:18,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-03 12:32:18,020 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 244 [2020-12-03 12:32:18,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:32:18,020 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-03 12:32:18,020 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-03 12:32:18,020 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-03 12:32:18,020 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-03 12:32:18,020 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-12-03 12:32:18,022 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-03 12:32:18,290 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 47) no Hoare annotation was computed. [2020-12-03 12:32:18,290 INFO L262 CegarLoopResult]: For program point L1555(lines 1555 2805) no Hoare annotation was computed. [2020-12-03 12:32:18,291 INFO L262 CegarLoopResult]: For program point L2546(lines 2546 2653) no Hoare annotation was computed. [2020-12-03 12:32:18,291 INFO L262 CegarLoopResult]: For program point L2480(lines 2480 2663) no Hoare annotation was computed. [2020-12-03 12:32:18,291 INFO L262 CegarLoopResult]: For program point L432(lines 432 2978) no Hoare annotation was computed. [2020-12-03 12:32:18,291 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION(line 255) no Hoare annotation was computed. [2020-12-03 12:32:18,291 INFO L262 CegarLoopResult]: For program point L697(lines 697 2937) no Hoare annotation was computed. [2020-12-03 12:32:18,291 INFO L262 CegarLoopResult]: For program point L1688(lines 1688 2785) no Hoare annotation was computed. [2020-12-03 12:32:18,291 INFO L262 CegarLoopResult]: For program point L1622(lines 1622 2795) no Hoare annotation was computed. [2020-12-03 12:32:18,291 INFO L262 CegarLoopResult]: For program point L103(lines 103 125) no Hoare annotation was computed. [2020-12-03 12:32:18,291 INFO L262 CegarLoopResult]: For program point L1953(lines 1953 2744) no Hoare annotation was computed. [2020-12-03 12:32:18,291 INFO L262 CegarLoopResult]: For program point L830(lines 830 2917) no Hoare annotation was computed. [2020-12-03 12:32:18,291 INFO L262 CegarLoopResult]: For program point L764(lines 764 2927) no Hoare annotation was computed. [2020-12-03 12:32:18,291 INFO L262 CegarLoopResult]: For program point L2614(lines 2614 2643) no Hoare annotation was computed. [2020-12-03 12:32:18,292 INFO L262 CegarLoopResult]: For program point L2218(lines 2218 2703) no Hoare annotation was computed. [2020-12-03 12:32:18,292 INFO L262 CegarLoopResult]: For program point L1095(lines 1095 2876) no Hoare annotation was computed. [2020-12-03 12:32:18,292 INFO L262 CegarLoopResult]: For program point L1360(lines 1360 2835) no Hoare annotation was computed. [2020-12-03 12:32:18,292 INFO L262 CegarLoopResult]: For program point L2351(lines 2351 2683) no Hoare annotation was computed. [2020-12-03 12:32:18,292 INFO L262 CegarLoopResult]: For program point L2285(lines 2285 2693) no Hoare annotation was computed. [2020-12-03 12:32:18,292 INFO L262 CegarLoopResult]: For program point L171(lines 171 193) no Hoare annotation was computed. [2020-12-03 12:32:18,292 INFO L262 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2020-12-03 12:32:18,292 INFO L262 CegarLoopResult]: For program point L2616(line 2616) no Hoare annotation was computed. [2020-12-03 12:32:18,292 INFO L262 CegarLoopResult]: For program point L502(lines 502 2967) no Hoare annotation was computed. [2020-12-03 12:32:18,292 INFO L262 CegarLoopResult]: For program point L1493(lines 1493 2815) no Hoare annotation was computed. [2020-12-03 12:32:18,292 INFO L262 CegarLoopResult]: For program point L1427(lines 1427 2825) no Hoare annotation was computed. [2020-12-03 12:32:18,293 INFO L262 CegarLoopResult]: For program point L1758(lines 1758 2774) no Hoare annotation was computed. [2020-12-03 12:32:18,293 INFO L262 CegarLoopResult]: For program point L635(lines 635 2947) no Hoare annotation was computed. [2020-12-03 12:32:18,293 INFO L262 CegarLoopResult]: For program point L569(lines 569 2957) no Hoare annotation was computed. [2020-12-03 12:32:18,293 INFO L265 CegarLoopResult]: At program point L2617(lines 16 3008) the Hoare annotation is: true [2020-12-03 12:32:18,293 INFO L262 CegarLoopResult]: For program point L173(line 173) no Hoare annotation was computed. [2020-12-03 12:32:18,293 INFO L262 CegarLoopResult]: For program point L2023(lines 2023 2733) no Hoare annotation was computed. [2020-12-03 12:32:18,293 INFO L262 CegarLoopResult]: For program point L900(lines 900 2906) no Hoare annotation was computed. [2020-12-03 12:32:18,293 INFO L262 CegarLoopResult]: For program point L1165(lines 1165 2865) no Hoare annotation was computed. [2020-12-03 12:32:18,293 INFO L262 CegarLoopResult]: For program point L2156(lines 2156 2713) no Hoare annotation was computed. [2020-12-03 12:32:18,293 INFO L262 CegarLoopResult]: For program point L2090(lines 2090 2723) no Hoare annotation was computed. [2020-12-03 12:32:18,294 INFO L262 CegarLoopResult]: For program point L2421(lines 2421 2672) no Hoare annotation was computed. [2020-12-03 12:32:18,294 INFO L262 CegarLoopResult]: For program point L307(lines 307 2997) no Hoare annotation was computed. [2020-12-03 12:32:18,294 INFO L262 CegarLoopResult]: For program point L1298(lines 1298 2845) no Hoare annotation was computed. [2020-12-03 12:32:18,294 INFO L262 CegarLoopResult]: For program point L1232(lines 1232 2855) no Hoare annotation was computed. [2020-12-03 12:32:18,294 INFO L262 CegarLoopResult]: For program point L1563(lines 1563 2804) no Hoare annotation was computed. [2020-12-03 12:32:18,294 INFO L262 CegarLoopResult]: For program point L440(lines 440 2977) no Hoare annotation was computed. [2020-12-03 12:32:18,294 INFO L262 CegarLoopResult]: For program point L374(lines 374 2987) no Hoare annotation was computed. [2020-12-03 12:32:18,294 INFO L262 CegarLoopResult]: For program point L1828(lines 1828 2763) no Hoare annotation was computed. [2020-12-03 12:32:18,294 INFO L262 CegarLoopResult]: For program point L705(lines 705 2936) no Hoare annotation was computed. [2020-12-03 12:32:18,294 INFO L262 CegarLoopResult]: For program point L45(lines 45 55) no Hoare annotation was computed. [2020-12-03 12:32:18,294 INFO L262 CegarLoopResult]: For program point L970(lines 970 2895) no Hoare annotation was computed. [2020-12-03 12:32:18,294 INFO L262 CegarLoopResult]: For program point L1961(lines 1961 2743) no Hoare annotation was computed. [2020-12-03 12:32:18,295 INFO L262 CegarLoopResult]: For program point L1895(lines 1895 2753) no Hoare annotation was computed. [2020-12-03 12:32:18,295 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 88) no Hoare annotation was computed. [2020-12-03 12:32:18,295 INFO L262 CegarLoopResult]: For program point L2226(lines 2226 2702) no Hoare annotation was computed. [2020-12-03 12:32:18,295 INFO L262 CegarLoopResult]: For program point L1103(lines 1103 2875) no Hoare annotation was computed. [2020-12-03 12:32:18,295 INFO L262 CegarLoopResult]: For program point L1037(lines 1037 2885) no Hoare annotation was computed. [2020-12-03 12:32:18,295 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION(line 2604) no Hoare annotation was computed. [2020-12-03 12:32:18,295 INFO L262 CegarLoopResult]: For program point L2623(lines 2623 2642) no Hoare annotation was computed. [2020-12-03 12:32:18,295 INFO L262 CegarLoopResult]: For program point L2491(lines 2491 2661) no Hoare annotation was computed. [2020-12-03 12:32:18,295 INFO L262 CegarLoopResult]: For program point L1368(lines 1368 2834) no Hoare annotation was computed. [2020-12-03 12:32:18,295 INFO L262 CegarLoopResult]: For program point L47(line 47) no Hoare annotation was computed. [2020-12-03 12:32:18,295 INFO L262 CegarLoopResult]: For program point L1633(lines 1633 2793) no Hoare annotation was computed. [2020-12-03 12:32:18,296 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 117) no Hoare annotation was computed. [2020-12-03 12:32:18,296 INFO L262 CegarLoopResult]: For program point L2558(lines 2558 2651) no Hoare annotation was computed. [2020-12-03 12:32:18,296 INFO L262 CegarLoopResult]: For program point L510(lines 510 2966) no Hoare annotation was computed. [2020-12-03 12:32:18,296 INFO L262 CegarLoopResult]: For program point L246(lines 246 281) no Hoare annotation was computed. [2020-12-03 12:32:18,296 INFO L262 CegarLoopResult]: For program point L775(lines 775 2925) no Hoare annotation was computed. [2020-12-03 12:32:18,296 INFO L262 CegarLoopResult]: For program point L1766(lines 1766 2773) no Hoare annotation was computed. [2020-12-03 12:32:18,296 INFO L262 CegarLoopResult]: For program point L1700(lines 1700 2783) no Hoare annotation was computed. [2020-12-03 12:32:18,297 INFO L258 CegarLoopResult]: At program point L2625(lines 25 3002) the Hoare annotation is: (and (<= 0 ULTIMATE.start_main_~main__t~0) (<= ULTIMATE.start_main_~main__t~0 ULTIMATE.start_main_~main__tagbuf_len~0)) [2020-12-03 12:32:18,297 INFO L262 CegarLoopResult]: For program point L115(lines 115 123) no Hoare annotation was computed. [2020-12-03 12:32:18,297 INFO L262 CegarLoopResult]: For program point L2031(lines 2031 2732) no Hoare annotation was computed. [2020-12-03 12:32:18,297 INFO L262 CegarLoopResult]: For program point L908(lines 908 2905) no Hoare annotation was computed. [2020-12-03 12:32:18,297 INFO L262 CegarLoopResult]: For program point L842(lines 842 2915) no Hoare annotation was computed. [2020-12-03 12:32:18,297 INFO L262 CegarLoopResult]: For program point L2296(lines 2296 2691) no Hoare annotation was computed. [2020-12-03 12:32:18,297 INFO L262 CegarLoopResult]: For program point L1173(lines 1173 2864) no Hoare annotation was computed. [2020-12-03 12:32:18,297 INFO L262 CegarLoopResult]: For program point L1438(lines 1438 2823) no Hoare annotation was computed. [2020-12-03 12:32:18,297 INFO L262 CegarLoopResult]: For program point L2429(lines 2429 2671) no Hoare annotation was computed. [2020-12-03 12:32:18,297 INFO L262 CegarLoopResult]: For program point L315(lines 315 2996) no Hoare annotation was computed. [2020-12-03 12:32:18,298 INFO L262 CegarLoopResult]: For program point L2363(lines 2363 2681) no Hoare annotation was computed. [2020-12-03 12:32:18,298 INFO L262 CegarLoopResult]: For program point L183(lines 183 191) no Hoare annotation was computed. [2020-12-03 12:32:18,298 INFO L262 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-12-03 12:32:18,298 INFO L262 CegarLoopResult]: For program point L580(lines 580 2955) no Hoare annotation was computed. [2020-12-03 12:32:18,298 INFO L262 CegarLoopResult]: For program point L1571(lines 1571 2803) no Hoare annotation was computed. [2020-12-03 12:32:18,298 INFO L262 CegarLoopResult]: For program point L1505(lines 1505 2813) no Hoare annotation was computed. [2020-12-03 12:32:18,298 INFO L262 CegarLoopResult]: For program point L1836(lines 1836 2762) no Hoare annotation was computed. [2020-12-03 12:32:18,298 INFO L262 CegarLoopResult]: For program point L713(lines 713 2935) no Hoare annotation was computed. [2020-12-03 12:32:18,298 INFO L262 CegarLoopResult]: For program point L647(lines 647 2945) no Hoare annotation was computed. [2020-12-03 12:32:18,298 INFO L262 CegarLoopResult]: For program point L185(line 185) no Hoare annotation was computed. [2020-12-03 12:32:18,298 INFO L262 CegarLoopResult]: For program point L2101(lines 2101 2721) no Hoare annotation was computed. [2020-12-03 12:32:18,298 INFO L262 CegarLoopResult]: For program point L978(lines 978 2894) no Hoare annotation was computed. [2020-12-03 12:32:18,299 INFO L262 CegarLoopResult]: For program point L1243(lines 1243 2853) no Hoare annotation was computed. [2020-12-03 12:32:18,299 INFO L262 CegarLoopResult]: For program point L2234(lines 2234 2701) no Hoare annotation was computed. [2020-12-03 12:32:18,299 INFO L262 CegarLoopResult]: For program point L2168(lines 2168 2711) no Hoare annotation was computed. [2020-12-03 12:32:18,299 INFO L262 CegarLoopResult]: For program point L2631(lines 2631 2641) no Hoare annotation was computed. [2020-12-03 12:32:18,299 INFO L262 CegarLoopResult]: For program point L2499(lines 2499 2660) no Hoare annotation was computed. [2020-12-03 12:32:18,299 INFO L262 CegarLoopResult]: For program point L385(lines 385 2985) no Hoare annotation was computed. [2020-12-03 12:32:18,299 INFO L262 CegarLoopResult]: For program point L1376(lines 1376 2833) no Hoare annotation was computed. [2020-12-03 12:32:18,299 INFO L262 CegarLoopResult]: For program point L1310(lines 1310 2843) no Hoare annotation was computed. [2020-12-03 12:32:18,299 INFO L262 CegarLoopResult]: For program point L253(lines 253 275) no Hoare annotation was computed. [2020-12-03 12:32:18,299 INFO L262 CegarLoopResult]: For program point L1641(lines 1641 2792) no Hoare annotation was computed. [2020-12-03 12:32:18,299 INFO L262 CegarLoopResult]: For program point L518(lines 518 2965) no Hoare annotation was computed. [2020-12-03 12:32:18,299 INFO L262 CegarLoopResult]: For program point L452(lines 452 2975) no Hoare annotation was computed. [2020-12-03 12:32:18,300 INFO L262 CegarLoopResult]: For program point L1906(lines 1906 2751) no Hoare annotation was computed. [2020-12-03 12:32:18,300 INFO L262 CegarLoopResult]: For program point L783(lines 783 2924) no Hoare annotation was computed. [2020-12-03 12:32:18,300 INFO L262 CegarLoopResult]: For program point L255(line 255) no Hoare annotation was computed. [2020-12-03 12:32:18,300 INFO L262 CegarLoopResult]: For program point L1048(lines 1048 2883) no Hoare annotation was computed. [2020-12-03 12:32:18,300 INFO L262 CegarLoopResult]: For program point L2039(lines 2039 2731) no Hoare annotation was computed. [2020-12-03 12:32:18,300 INFO L262 CegarLoopResult]: For program point L1973(lines 1973 2741) no Hoare annotation was computed. [2020-12-03 12:32:18,300 INFO L258 CegarLoopResult]: At program point L2634(lines 64 3001) the Hoare annotation is: (let ((.cse0 (< ULTIMATE.start_main_~main__t~0 ULTIMATE.start_main_~main__tagbuf_len~0))) (or (and .cse0 (<= 1 ULTIMATE.start_main_~main__t~0)) (and .cse0 (= ULTIMATE.start_main_~main__t~0 0)))) [2020-12-03 12:32:18,300 INFO L262 CegarLoopResult]: For program point L2304(lines 2304 2690) no Hoare annotation was computed. [2020-12-03 12:32:18,300 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-03 12:32:18,300 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 157) no Hoare annotation was computed. [2020-12-03 12:32:18,301 INFO L262 CegarLoopResult]: For program point L1181(lines 1181 2863) no Hoare annotation was computed. [2020-12-03 12:32:18,301 INFO L262 CegarLoopResult]: For program point L1115(lines 1115 2873) no Hoare annotation was computed. [2020-12-03 12:32:18,301 INFO L262 CegarLoopResult]: For program point L2569(lines 2569 2649) no Hoare annotation was computed. [2020-12-03 12:32:18,301 INFO L262 CegarLoopResult]: For program point L1446(lines 1446 2822) no Hoare annotation was computed. [2020-12-03 12:32:18,301 INFO L262 CegarLoopResult]: For program point L323(lines 323 2995) no Hoare annotation was computed. [2020-12-03 12:32:18,301 INFO L262 CegarLoopResult]: For program point L1711(lines 1711 2781) no Hoare annotation was computed. [2020-12-03 12:32:18,301 INFO L262 CegarLoopResult]: For program point L588(lines 588 2954) no Hoare annotation was computed. [2020-12-03 12:32:18,301 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION(line 185) no Hoare annotation was computed. [2020-12-03 12:32:18,301 INFO L262 CegarLoopResult]: For program point L853(lines 853 2913) no Hoare annotation was computed. [2020-12-03 12:32:18,301 INFO L262 CegarLoopResult]: For program point L1844(lines 1844 2761) no Hoare annotation was computed. [2020-12-03 12:32:18,301 INFO L262 CegarLoopResult]: For program point L1778(lines 1778 2771) no Hoare annotation was computed. [2020-12-03 12:32:18,301 INFO L262 CegarLoopResult]: For program point L2109(lines 2109 2720) no Hoare annotation was computed. [2020-12-03 12:32:18,302 INFO L262 CegarLoopResult]: For program point L986(lines 986 2893) no Hoare annotation was computed. [2020-12-03 12:32:18,302 INFO L262 CegarLoopResult]: For program point L920(lines 920 2903) no Hoare annotation was computed. [2020-12-03 12:32:18,302 INFO L262 CegarLoopResult]: For program point L2374(lines 2374 2679) no Hoare annotation was computed. [2020-12-03 12:32:18,302 INFO L262 CegarLoopResult]: For program point L1251(lines 1251 2852) no Hoare annotation was computed. [2020-12-03 12:32:18,302 INFO L262 CegarLoopResult]: For program point L1516(lines 1516 2811) no Hoare annotation was computed. [2020-12-03 12:32:18,302 INFO L262 CegarLoopResult]: For program point L2507(lines 2507 2659) no Hoare annotation was computed. [2020-12-03 12:32:18,302 INFO L262 CegarLoopResult]: For program point L393(lines 393 2984) no Hoare annotation was computed. [2020-12-03 12:32:18,302 INFO L262 CegarLoopResult]: For program point L2441(lines 2441 2669) no Hoare annotation was computed. [2020-12-03 12:32:18,302 INFO L262 CegarLoopResult]: For program point L658(lines 658 2943) no Hoare annotation was computed. [2020-12-03 12:32:18,303 INFO L262 CegarLoopResult]: For program point L1649(lines 1649 2791) no Hoare annotation was computed. [2020-12-03 12:32:18,303 INFO L258 CegarLoopResult]: At program point L2640(lines 2591 2647) the Hoare annotation is: (and (< ULTIMATE.start_main_~main__t~0 ULTIMATE.start_main_~main__tagbuf_len~0) (<= 59 ULTIMATE.start_main_~main__t~0)) [2020-12-03 12:32:18,303 INFO L262 CegarLoopResult]: For program point L1583(lines 1583 2801) no Hoare annotation was computed. [2020-12-03 12:32:18,303 INFO L262 CegarLoopResult]: For program point L64(lines 64 3001) no Hoare annotation was computed. [2020-12-03 12:32:18,303 INFO L262 CegarLoopResult]: For program point L1914(lines 1914 2750) no Hoare annotation was computed. [2020-12-03 12:32:18,303 INFO L262 CegarLoopResult]: For program point L791(lines 791 2923) no Hoare annotation was computed. [2020-12-03 12:32:18,303 INFO L262 CegarLoopResult]: For program point L725(lines 725 2933) no Hoare annotation was computed. [2020-12-03 12:32:18,303 INFO L262 CegarLoopResult]: For program point L2179(lines 2179 2709) no Hoare annotation was computed. [2020-12-03 12:32:18,303 INFO L262 CegarLoopResult]: For program point L1056(lines 1056 2882) no Hoare annotation was computed. [2020-12-03 12:32:18,303 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 35) no Hoare annotation was computed. [2020-12-03 12:32:18,303 INFO L262 CegarLoopResult]: For program point L1321(lines 1321 2841) no Hoare annotation was computed. [2020-12-03 12:32:18,304 INFO L262 CegarLoopResult]: For program point L2312(lines 2312 2689) no Hoare annotation was computed. [2020-12-03 12:32:18,304 INFO L262 CegarLoopResult]: For program point L2246(lines 2246 2699) no Hoare annotation was computed. [2020-12-03 12:32:18,304 INFO L262 CegarLoopResult]: For program point L132(lines 132 282) no Hoare annotation was computed. [2020-12-03 12:32:18,304 INFO L262 CegarLoopResult]: For program point L2577(lines 2577 2648) no Hoare annotation was computed. [2020-12-03 12:32:18,304 INFO L262 CegarLoopResult]: For program point L463(lines 463 2973) no Hoare annotation was computed. [2020-12-03 12:32:18,304 INFO L262 CegarLoopResult]: For program point L1454(lines 1454 2821) no Hoare annotation was computed. [2020-12-03 12:32:18,304 INFO L262 CegarLoopResult]: For program point L1388(lines 1388 2831) no Hoare annotation was computed. [2020-12-03 12:32:18,304 INFO L262 CegarLoopResult]: For program point L265(lines 265 273) no Hoare annotation was computed. [2020-12-03 12:32:18,304 INFO L262 CegarLoopResult]: For program point L1719(lines 1719 2780) no Hoare annotation was computed. [2020-12-03 12:32:18,304 INFO L262 CegarLoopResult]: For program point L596(lines 596 2953) no Hoare annotation was computed. [2020-12-03 12:32:18,304 INFO L262 CegarLoopResult]: For program point L530(lines 530 2963) no Hoare annotation was computed. [2020-12-03 12:32:18,305 INFO L262 CegarLoopResult]: For program point L1984(lines 1984 2739) no Hoare annotation was computed. [2020-12-03 12:32:18,305 INFO L262 CegarLoopResult]: For program point L861(lines 861 2912) no Hoare annotation was computed. [2020-12-03 12:32:18,305 INFO L262 CegarLoopResult]: For program point L267(line 267) no Hoare annotation was computed. [2020-12-03 12:32:18,305 INFO L262 CegarLoopResult]: For program point L1126(lines 1126 2871) no Hoare annotation was computed. [2020-12-03 12:32:18,305 INFO L262 CegarLoopResult]: For program point L2117(lines 2117 2719) no Hoare annotation was computed. [2020-12-03 12:32:18,305 INFO L262 CegarLoopResult]: For program point L2051(lines 2051 2729) no Hoare annotation was computed. [2020-12-03 12:32:18,305 INFO L262 CegarLoopResult]: For program point L2382(lines 2382 2678) no Hoare annotation was computed. [2020-12-03 12:32:18,305 INFO L262 CegarLoopResult]: For program point L1259(lines 1259 2851) no Hoare annotation was computed. [2020-12-03 12:32:18,305 INFO L262 CegarLoopResult]: For program point L1193(lines 1193 2861) no Hoare annotation was computed. [2020-12-03 12:32:18,305 INFO L262 CegarLoopResult]: For program point L136(lines 136 240) no Hoare annotation was computed. [2020-12-03 12:32:18,305 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION(line 219) no Hoare annotation was computed. [2020-12-03 12:32:18,305 INFO L262 CegarLoopResult]: For program point L1524(lines 1524 2810) no Hoare annotation was computed. [2020-12-03 12:32:18,306 INFO L262 CegarLoopResult]: For program point L401(lines 401 2983) no Hoare annotation was computed. [2020-12-03 12:32:18,306 INFO L262 CegarLoopResult]: For program point L335(lines 335 2993) no Hoare annotation was computed. [2020-12-03 12:32:18,306 INFO L262 CegarLoopResult]: For program point L1789(lines 1789 2769) no Hoare annotation was computed. [2020-12-03 12:32:18,306 INFO L262 CegarLoopResult]: For program point L666(lines 666 2942) no Hoare annotation was computed. [2020-12-03 12:32:18,306 INFO L262 CegarLoopResult]: For program point L931(lines 931 2901) no Hoare annotation was computed. [2020-12-03 12:32:18,306 INFO L262 CegarLoopResult]: For program point L1922(lines 1922 2749) no Hoare annotation was computed. [2020-12-03 12:32:18,306 INFO L262 CegarLoopResult]: For program point L1856(lines 1856 2759) no Hoare annotation was computed. [2020-12-03 12:32:18,306 INFO L262 CegarLoopResult]: For program point L205(lines 205 229) no Hoare annotation was computed. [2020-12-03 12:32:18,306 INFO L262 CegarLoopResult]: For program point L2187(lines 2187 2708) no Hoare annotation was computed. [2020-12-03 12:32:18,306 INFO L262 CegarLoopResult]: For program point L1064(lines 1064 2881) no Hoare annotation was computed. [2020-12-03 12:32:18,306 INFO L262 CegarLoopResult]: For program point L998(lines 998 2891) no Hoare annotation was computed. [2020-12-03 12:32:18,306 INFO L262 CegarLoopResult]: For program point L2452(lines 2452 2667) no Hoare annotation was computed. [2020-12-03 12:32:18,307 INFO L262 CegarLoopResult]: For program point L1329(lines 1329 2840) no Hoare annotation was computed. [2020-12-03 12:32:18,307 INFO L262 CegarLoopResult]: For program point L74(lines 74 286) no Hoare annotation was computed. [2020-12-03 12:32:18,307 INFO L262 CegarLoopResult]: For program point L1594(lines 1594 2799) no Hoare annotation was computed. [2020-12-03 12:32:18,307 INFO L262 CegarLoopResult]: For program point L2585(lines 2585 2647) no Hoare annotation was computed. [2020-12-03 12:32:18,307 INFO L262 CegarLoopResult]: For program point L471(lines 471 2972) no Hoare annotation was computed. [2020-12-03 12:32:18,307 INFO L262 CegarLoopResult]: For program point L2519(lines 2519 2657) no Hoare annotation was computed. [2020-12-03 12:32:18,307 INFO L262 CegarLoopResult]: For program point L207(line 207) no Hoare annotation was computed. [2020-12-03 12:32:18,307 INFO L262 CegarLoopResult]: For program point L736(lines 736 2931) no Hoare annotation was computed. [2020-12-03 12:32:18,307 INFO L262 CegarLoopResult]: For program point L1727(lines 1727 2779) no Hoare annotation was computed. [2020-12-03 12:32:18,307 INFO L262 CegarLoopResult]: For program point L1661(lines 1661 2789) no Hoare annotation was computed. [2020-12-03 12:32:18,307 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 76) no Hoare annotation was computed. [2020-12-03 12:32:18,308 INFO L262 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-12-03 12:32:18,308 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION(line 267) no Hoare annotation was computed. [2020-12-03 12:32:18,308 INFO L262 CegarLoopResult]: For program point L1992(lines 1992 2738) no Hoare annotation was computed. [2020-12-03 12:32:18,308 INFO L262 CegarLoopResult]: For program point L869(lines 869 2911) no Hoare annotation was computed. [2020-12-03 12:32:18,308 INFO L262 CegarLoopResult]: For program point L803(lines 803 2921) no Hoare annotation was computed. [2020-12-03 12:32:18,308 INFO L262 CegarLoopResult]: For program point L2257(lines 2257 2697) no Hoare annotation was computed. [2020-12-03 12:32:18,308 INFO L262 CegarLoopResult]: For program point L143(lines 143 234) no Hoare annotation was computed. [2020-12-03 12:32:18,308 INFO L262 CegarLoopResult]: For program point L1134(lines 1134 2870) no Hoare annotation was computed. [2020-12-03 12:32:18,308 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 105) no Hoare annotation was computed. [2020-12-03 12:32:18,308 INFO L262 CegarLoopResult]: For program point L1399(lines 1399 2829) no Hoare annotation was computed. [2020-12-03 12:32:18,308 INFO L262 CegarLoopResult]: For program point L2390(lines 2390 2677) no Hoare annotation was computed. [2020-12-03 12:32:18,308 INFO L262 CegarLoopResult]: For program point L2324(lines 2324 2687) no Hoare annotation was computed. [2020-12-03 12:32:18,309 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION(line 2616) no Hoare annotation was computed. [2020-12-03 12:32:18,309 INFO L262 CegarLoopResult]: For program point L541(lines 541 2961) no Hoare annotation was computed. [2020-12-03 12:32:18,309 INFO L262 CegarLoopResult]: For program point L1532(lines 1532 2809) no Hoare annotation was computed. [2020-12-03 12:32:18,309 INFO L262 CegarLoopResult]: For program point L1466(lines 1466 2819) no Hoare annotation was computed. [2020-12-03 12:32:18,309 INFO L262 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-12-03 12:32:18,309 INFO L262 CegarLoopResult]: For program point L1797(lines 1797 2768) no Hoare annotation was computed. [2020-12-03 12:32:18,309 INFO L262 CegarLoopResult]: For program point L674(lines 674 2941) no Hoare annotation was computed. [2020-12-03 12:32:18,309 INFO L262 CegarLoopResult]: For program point L608(lines 608 2951) no Hoare annotation was computed. [2020-12-03 12:32:18,309 INFO L262 CegarLoopResult]: For program point L2062(lines 2062 2727) no Hoare annotation was computed. [2020-12-03 12:32:18,309 INFO L262 CegarLoopResult]: For program point L939(lines 939 2900) no Hoare annotation was computed. [2020-12-03 12:32:18,309 INFO L262 CegarLoopResult]: For program point L1204(lines 1204 2859) no Hoare annotation was computed. [2020-12-03 12:32:18,309 INFO L262 CegarLoopResult]: For program point L2195(lines 2195 2707) no Hoare annotation was computed. [2020-12-03 12:32:18,310 INFO L262 CegarLoopResult]: For program point L2129(lines 2129 2717) no Hoare annotation was computed. [2020-12-03 12:32:18,310 INFO L262 CegarLoopResult]: For program point L2460(lines 2460 2666) no Hoare annotation was computed. [2020-12-03 12:32:18,310 INFO L262 CegarLoopResult]: For program point L346(lines 346 2991) no Hoare annotation was computed. [2020-12-03 12:32:18,310 INFO L262 CegarLoopResult]: For program point L1337(lines 1337 2839) no Hoare annotation was computed. [2020-12-03 12:32:18,311 INFO L258 CegarLoopResult]: At program point L280(lines 132 282) the Hoare annotation is: (and (< ULTIMATE.start_main_~main__t~0 ULTIMATE.start_main_~main__tagbuf_len~0) (<= 1 ULTIMATE.start_main_~main__t~0) (not (= ULTIMATE.start_main_~__VERIFIER_assert__cond~3 0)) (not (= ULTIMATE.start_main_~__VERIFIER_assert__cond~2 0))) [2020-12-03 12:32:18,311 INFO L262 CegarLoopResult]: For program point L1271(lines 1271 2849) no Hoare annotation was computed. [2020-12-03 12:32:18,311 INFO L262 CegarLoopResult]: For program point L1602(lines 1602 2798) no Hoare annotation was computed. [2020-12-03 12:32:18,311 INFO L262 CegarLoopResult]: For program point L479(lines 479 2971) no Hoare annotation was computed. [2020-12-03 12:32:18,311 INFO L262 CegarLoopResult]: For program point L413(lines 413 2981) no Hoare annotation was computed. [2020-12-03 12:32:18,312 INFO L262 CegarLoopResult]: For program point L1867(lines 1867 2757) no Hoare annotation was computed. [2020-12-03 12:32:18,312 INFO L262 CegarLoopResult]: For program point L744(lines 744 2930) no Hoare annotation was computed. [2020-12-03 12:32:18,312 INFO L262 CegarLoopResult]: For program point L1009(lines 1009 2889) no Hoare annotation was computed. [2020-12-03 12:32:18,312 INFO L262 CegarLoopResult]: For program point L2000(lines 2000 2737) no Hoare annotation was computed. [2020-12-03 12:32:18,312 INFO L262 CegarLoopResult]: For program point L1934(lines 1934 2747) no Hoare annotation was computed. [2020-12-03 12:32:18,312 INFO L262 CegarLoopResult]: For program point L217(lines 217 227) no Hoare annotation was computed. [2020-12-03 12:32:18,312 INFO L262 CegarLoopResult]: For program point L2265(lines 2265 2696) no Hoare annotation was computed. [2020-12-03 12:32:18,312 INFO L262 CegarLoopResult]: For program point L1142(lines 1142 2869) no Hoare annotation was computed. [2020-12-03 12:32:18,312 INFO L262 CegarLoopResult]: For program point L1076(lines 1076 2879) no Hoare annotation was computed. [2020-12-03 12:32:18,312 INFO L262 CegarLoopResult]: For program point L2530(lines 2530 2655) no Hoare annotation was computed. [2020-12-03 12:32:18,312 INFO L262 CegarLoopResult]: For program point L1407(lines 1407 2828) no Hoare annotation was computed. [2020-12-03 12:32:18,312 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-03 12:32:18,313 INFO L262 CegarLoopResult]: For program point L86(lines 86 284) no Hoare annotation was computed. [2020-12-03 12:32:18,313 INFO L262 CegarLoopResult]: For program point L1672(lines 1672 2787) no Hoare annotation was computed. [2020-12-03 12:32:18,313 INFO L262 CegarLoopResult]: For program point L549(lines 549 2960) no Hoare annotation was computed. [2020-12-03 12:32:18,313 INFO L262 CegarLoopResult]: For program point L219(line 219) no Hoare annotation was computed. [2020-12-03 12:32:18,313 INFO L262 CegarLoopResult]: For program point L21(lines 21 3007) no Hoare annotation was computed. [2020-12-03 12:32:18,313 INFO L262 CegarLoopResult]: For program point L814(lines 814 2919) no Hoare annotation was computed. [2020-12-03 12:32:18,313 INFO L262 CegarLoopResult]: For program point L1805(lines 1805 2767) no Hoare annotation was computed. [2020-12-03 12:32:18,313 INFO L262 CegarLoopResult]: For program point L1739(lines 1739 2777) no Hoare annotation was computed. [2020-12-03 12:32:18,313 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 145) no Hoare annotation was computed. [2020-12-03 12:32:18,313 INFO L262 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-12-03 12:32:18,313 INFO L262 CegarLoopResult]: For program point L2070(lines 2070 2726) no Hoare annotation was computed. [2020-12-03 12:32:18,314 INFO L262 CegarLoopResult]: For program point L947(lines 947 2899) no Hoare annotation was computed. [2020-12-03 12:32:18,314 INFO L262 CegarLoopResult]: For program point L881(lines 881 2909) no Hoare annotation was computed. [2020-12-03 12:32:18,314 INFO L262 CegarLoopResult]: For program point L2335(lines 2335 2685) no Hoare annotation was computed. [2020-12-03 12:32:18,314 INFO L262 CegarLoopResult]: For program point L1212(lines 1212 2858) no Hoare annotation was computed. [2020-12-03 12:32:18,314 INFO L262 CegarLoopResult]: For program point L155(lines 155 232) no Hoare annotation was computed. [2020-12-03 12:32:18,315 INFO L262 CegarLoopResult]: For program point L1477(lines 1477 2817) no Hoare annotation was computed. [2020-12-03 12:32:18,315 INFO L262 CegarLoopResult]: For program point L2468(lines 2468 2665) no Hoare annotation was computed. [2020-12-03 12:32:18,315 INFO L262 CegarLoopResult]: For program point L2402(lines 2402 2675) no Hoare annotation was computed. [2020-12-03 12:32:18,315 INFO L262 CegarLoopResult]: For program point L354(lines 354 2990) no Hoare annotation was computed. [2020-12-03 12:32:18,315 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION(line 173) no Hoare annotation was computed. [2020-12-03 12:32:18,315 INFO L262 CegarLoopResult]: For program point L619(lines 619 2949) no Hoare annotation was computed. [2020-12-03 12:32:18,316 INFO L262 CegarLoopResult]: For program point L1610(lines 1610 2797) no Hoare annotation was computed. [2020-12-03 12:32:18,318 INFO L262 CegarLoopResult]: For program point L1544(lines 1544 2807) no Hoare annotation was computed. [2020-12-03 12:32:18,318 INFO L262 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-12-03 12:32:18,318 INFO L262 CegarLoopResult]: For program point L25(lines 25 3002) no Hoare annotation was computed. [2020-12-03 12:32:18,318 INFO L262 CegarLoopResult]: For program point L1875(lines 1875 2756) no Hoare annotation was computed. [2020-12-03 12:32:18,318 INFO L262 CegarLoopResult]: For program point L752(lines 752 2929) no Hoare annotation was computed. [2020-12-03 12:32:18,318 INFO L262 CegarLoopResult]: For program point L686(lines 686 2939) no Hoare annotation was computed. [2020-12-03 12:32:18,318 INFO L262 CegarLoopResult]: For program point L2602(lines 2602 2645) no Hoare annotation was computed. [2020-12-03 12:32:18,318 INFO L262 CegarLoopResult]: For program point L2140(lines 2140 2715) no Hoare annotation was computed. [2020-12-03 12:32:18,318 INFO L262 CegarLoopResult]: For program point L1017(lines 1017 2888) no Hoare annotation was computed. [2020-12-03 12:32:18,319 INFO L262 CegarLoopResult]: For program point L1282(lines 1282 2847) no Hoare annotation was computed. [2020-12-03 12:32:18,319 INFO L262 CegarLoopResult]: For program point L2273(lines 2273 2695) no Hoare annotation was computed. [2020-12-03 12:32:18,319 INFO L262 CegarLoopResult]: For program point L2207(lines 2207 2705) no Hoare annotation was computed. [2020-12-03 12:32:18,319 INFO L262 CegarLoopResult]: For program point L2604(line 2604) no Hoare annotation was computed. [2020-12-03 12:32:18,319 INFO L262 CegarLoopResult]: For program point L2538(lines 2538 2654) no Hoare annotation was computed. [2020-12-03 12:32:18,319 INFO L262 CegarLoopResult]: For program point L424(lines 424 2979) no Hoare annotation was computed. [2020-12-03 12:32:18,319 INFO L262 CegarLoopResult]: For program point L1415(lines 1415 2827) no Hoare annotation was computed. [2020-12-03 12:32:18,319 INFO L262 CegarLoopResult]: For program point L1349(lines 1349 2837) no Hoare annotation was computed. [2020-12-03 12:32:18,319 INFO L258 CegarLoopResult]: At program point L226(lines 92 284) the Hoare annotation is: (and (not (= ULTIMATE.start_main_~__VERIFIER_assert__cond~3 0)) (<= 1 ULTIMATE.start_main_~main__t~0) (not (= ULTIMATE.start_main_~__VERIFIER_assert__cond~2 0)) (<= ULTIMATE.start_main_~main__t~0 ULTIMATE.start_main_~main__tagbuf_len~0)) [2020-12-03 12:32:18,319 INFO L262 CegarLoopResult]: For program point L1680(lines 1680 2786) no Hoare annotation was computed. [2020-12-03 12:32:18,319 INFO L262 CegarLoopResult]: For program point L557(lines 557 2959) no Hoare annotation was computed. [2020-12-03 12:32:18,320 INFO L262 CegarLoopResult]: For program point L491(lines 491 2969) no Hoare annotation was computed. [2020-12-03 12:32:18,320 INFO L262 CegarLoopResult]: For program point L1945(lines 1945 2745) no Hoare annotation was computed. [2020-12-03 12:32:18,320 INFO L262 CegarLoopResult]: For program point L822(lines 822 2918) no Hoare annotation was computed. [2020-12-03 12:32:18,320 INFO L262 CegarLoopResult]: For program point L1087(lines 1087 2877) no Hoare annotation was computed. [2020-12-03 12:32:18,320 INFO L262 CegarLoopResult]: For program point L2078(lines 2078 2725) no Hoare annotation was computed. [2020-12-03 12:32:18,320 INFO L262 CegarLoopResult]: For program point L2012(lines 2012 2735) no Hoare annotation was computed. [2020-12-03 12:32:18,320 INFO L262 CegarLoopResult]: For program point L2343(lines 2343 2684) no Hoare annotation was computed. [2020-12-03 12:32:18,320 INFO L262 CegarLoopResult]: For program point L1220(lines 1220 2857) no Hoare annotation was computed. [2020-12-03 12:32:18,320 INFO L262 CegarLoopResult]: For program point L1154(lines 1154 2867) no Hoare annotation was computed. [2020-12-03 12:32:18,320 INFO L262 CegarLoopResult]: For program point L1485(lines 1485 2816) no Hoare annotation was computed. [2020-12-03 12:32:18,320 INFO L262 CegarLoopResult]: For program point L362(lines 362 2989) no Hoare annotation was computed. [2020-12-03 12:32:18,320 INFO L262 CegarLoopResult]: For program point L296(lines 296 2999) no Hoare annotation was computed. [2020-12-03 12:32:18,320 INFO L262 CegarLoopResult]: For program point L164(lines 164 231) no Hoare annotation was computed. [2020-12-03 12:32:18,321 INFO L262 CegarLoopResult]: For program point L1750(lines 1750 2775) no Hoare annotation was computed. [2020-12-03 12:32:18,321 INFO L262 CegarLoopResult]: For program point L627(lines 627 2948) no Hoare annotation was computed. [2020-12-03 12:32:18,321 INFO L262 CegarLoopResult]: For program point L33(lines 33 57) no Hoare annotation was computed. [2020-12-03 12:32:18,321 INFO L265 CegarLoopResult]: At program point L3006(lines 21 3007) the Hoare annotation is: true [2020-12-03 12:32:18,321 INFO L262 CegarLoopResult]: For program point L892(lines 892 2907) no Hoare annotation was computed. [2020-12-03 12:32:18,321 INFO L262 CegarLoopResult]: For program point L1883(lines 1883 2755) no Hoare annotation was computed. [2020-12-03 12:32:18,321 INFO L262 CegarLoopResult]: For program point L1817(lines 1817 2765) no Hoare annotation was computed. [2020-12-03 12:32:18,321 INFO L262 CegarLoopResult]: For program point L2148(lines 2148 2714) no Hoare annotation was computed. [2020-12-03 12:32:18,321 INFO L262 CegarLoopResult]: For program point L1025(lines 1025 2887) no Hoare annotation was computed. [2020-12-03 12:32:18,321 INFO L262 CegarLoopResult]: For program point L959(lines 959 2897) no Hoare annotation was computed. [2020-12-03 12:32:18,321 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION(line 207) no Hoare annotation was computed. [2020-12-03 12:32:18,322 INFO L262 CegarLoopResult]: For program point L2413(lines 2413 2673) no Hoare annotation was computed. [2020-12-03 12:32:18,322 INFO L262 CegarLoopResult]: For program point L1290(lines 1290 2846) no Hoare annotation was computed. [2020-12-03 12:32:18,322 INFO L262 CegarLoopResult]: For program point L35(line 35) no Hoare annotation was computed. [2020-12-03 12:32:18,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.12 12:32:18 BoogieIcfgContainer [2020-12-03 12:32:18,352 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-03 12:32:18,352 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-03 12:32:18,352 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-03 12:32:18,353 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-03 12:32:18,353 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:31:59" (3/4) ... [2020-12-03 12:32:18,356 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-03 12:32:18,392 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2020-12-03 12:32:18,395 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-03 12:32:18,399 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-03 12:32:18,402 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-03 12:32:18,641 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_ba67ea9e-f7a7-47ab-9900-2f9f5244985c/bin/utaipan/witness.graphml [2020-12-03 12:32:18,642 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-03 12:32:18,643 INFO L168 Benchmark]: Toolchain (without parser) took 22385.29 ms. Allocated memory was 102.8 MB in the beginning and 362.8 MB in the end (delta: 260.0 MB). Free memory was 70.6 MB in the beginning and 150.0 MB in the end (delta: -79.5 MB). Peak memory consumption was 179.5 MB. Max. memory is 16.1 GB. [2020-12-03 12:32:18,644 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 75.5 MB. Free memory is still 37.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 12:32:18,644 INFO L168 Benchmark]: CACSL2BoogieTranslator took 961.43 ms. Allocated memory is still 102.8 MB. Free memory was 70.3 MB in the beginning and 50.9 MB in the end (delta: 19.5 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-12-03 12:32:18,645 INFO L168 Benchmark]: Boogie Procedure Inliner took 144.40 ms. Allocated memory is still 102.8 MB. Free memory was 50.9 MB in the beginning and 44.0 MB in the end (delta: 6.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-03 12:32:18,645 INFO L168 Benchmark]: Boogie Preprocessor took 103.06 ms. Allocated memory is still 102.8 MB. Free memory was 44.0 MB in the beginning and 39.8 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-03 12:32:18,646 INFO L168 Benchmark]: RCFGBuilder took 1927.27 ms. Allocated memory was 102.8 MB in the beginning and 125.8 MB in the end (delta: 23.1 MB). Free memory was 39.8 MB in the beginning and 93.9 MB in the end (delta: -54.1 MB). Peak memory consumption was 22.8 MB. Max. memory is 16.1 GB. [2020-12-03 12:32:18,646 INFO L168 Benchmark]: TraceAbstraction took 18948.04 ms. Allocated memory was 125.8 MB in the beginning and 362.8 MB in the end (delta: 237.0 MB). Free memory was 93.9 MB in the beginning and 179.4 MB in the end (delta: -85.5 MB). Peak memory consumption was 152.4 MB. Max. memory is 16.1 GB. [2020-12-03 12:32:18,646 INFO L168 Benchmark]: Witness Printer took 289.37 ms. Allocated memory is still 362.8 MB. Free memory was 179.4 MB in the beginning and 150.0 MB in the end (delta: 29.4 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. [2020-12-03 12:32:18,649 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 75.5 MB. Free memory is still 37.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 961.43 ms. Allocated memory is still 102.8 MB. Free memory was 70.3 MB in the beginning and 50.9 MB in the end (delta: 19.5 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 144.40 ms. Allocated memory is still 102.8 MB. Free memory was 50.9 MB in the beginning and 44.0 MB in the end (delta: 6.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 103.06 ms. Allocated memory is still 102.8 MB. Free memory was 44.0 MB in the beginning and 39.8 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1927.27 ms. Allocated memory was 102.8 MB in the beginning and 125.8 MB in the end (delta: 23.1 MB). Free memory was 39.8 MB in the beginning and 93.9 MB in the end (delta: -54.1 MB). Peak memory consumption was 22.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 18948.04 ms. Allocated memory was 125.8 MB in the beginning and 362.8 MB in the end (delta: 237.0 MB). Free memory was 93.9 MB in the beginning and 179.4 MB in the end (delta: -85.5 MB). Peak memory consumption was 152.4 MB. Max. memory is 16.1 GB. * Witness Printer took 289.37 ms. Allocated memory is still 362.8 MB. Free memory was 179.4 MB in the beginning and 150.0 MB in the end (delta: 29.4 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 47]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 173]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 157]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 2616]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 88]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 35]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 76]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 255]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 105]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 117]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 145]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 207]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 2604]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 267]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 219]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 185]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 16 specifications checked. All of them hold - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 92]: Loop Invariant Derived loop invariant: ((!(__VERIFIER_assert__cond == 0) && 1 <= main__t) && !(__VERIFIER_assert__cond == 0)) && main__t <= main__tagbuf_len - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: 0 <= main__t && main__t <= main__tagbuf_len - InvariantResult [Line: 132]: Loop Invariant Derived loop invariant: ((main__t < main__tagbuf_len && 1 <= main__t) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0) - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: (main__t < main__tagbuf_len && 1 <= main__t) || (main__t < main__tagbuf_len && main__t == 0) - InvariantResult [Line: 2591]: Loop Invariant Derived loop invariant: main__t < main__tagbuf_len && 59 <= main__t - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 302 locations, 16 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 18.5s, OverallIterations: 21, TraceHistogramMax: 1, AutomataDifference: 12.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3990 SDtfs, 11194 SDslu, 5186 SDs, 0 SdLazy, 11652 SolverSat, 3191 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 317 GetRequests, 161 SyntacticMatches, 1 SemanticMatches, 155 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 2.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=302occurred in iteration=0, 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, 21 MinimizatonAttempts, 150 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 18 NumberOfFragments, 61 HoareAnnotationTreeSize, 7 FomulaSimplifications, 15637 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 927 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 3.7s InterpolantComputationTime, 723 NumberOfCodeBlocks, 723 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 702 ConstructedInterpolants, 0 QuantifiedInterpolants, 393444 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 21 InterpolantComputations, 21 PerfectInterpolantSequences, 0/0 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 correct! Received shutdown request...