./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-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_worker_vcloud-master_on_vcloud-master/run_dir_666904df-6844-4198-b67c-54d277363f54/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_666904df-6844-4198-b67c-54d277363f54/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_666904df-6844-4198-b67c-54d277363f54/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_666904df-6844-4198-b67c-54d277363f54/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_666904df-6844-4198-b67c-54d277363f54/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_666904df-6844-4198-b67c-54d277363f54/bin/utaipan-WLngWcDbfI --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 4b3c25b2e1855c4c0a30872aa894c42326e9c019 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:23:59,163 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:23:59,165 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:23:59,203 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:23:59,206 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:23:59,214 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:23:59,218 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:23:59,223 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:23:59,226 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:23:59,235 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:23:59,236 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:23:59,238 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:23:59,238 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:23:59,242 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:23:59,244 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:23:59,246 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:23:59,249 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:23:59,250 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:23:59,257 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:23:59,268 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:23:59,270 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:23:59,272 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:23:59,276 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:23:59,277 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:23:59,282 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:23:59,282 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:23:59,283 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:23:59,285 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:23:59,286 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:23:59,288 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:23:59,288 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:23:59,290 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:23:59,293 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:23:59,295 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:23:59,296 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:23:59,296 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:23:59,297 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:23:59,298 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:23:59,298 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:23:59,299 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:23:59,300 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:23:59,303 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_666904df-6844-4198-b67c-54d277363f54/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:23:59,355 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:23:59,356 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:23:59,357 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:23:59,357 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:23:59,358 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:23:59,358 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:23:59,358 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:23:59,358 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:23:59,366 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:23:59,366 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:23:59,366 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:23:59,366 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:23:59,366 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:23:59,367 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:23:59,367 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:23:59,368 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:23:59,368 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:23:59,368 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:23:59,368 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:23:59,368 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:23:59,369 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:23:59,369 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:23:59,369 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:23:59,369 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:23:59,369 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:23:59,370 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:23:59,370 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:23:59,370 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:23:59,370 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:23:59,370 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:23:59,371 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:23:59,371 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:23:59,371 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:23:59,371 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:23:59,371 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:23:59,372 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:23:59,372 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:23:59,372 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:23:59,372 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:23:59,372 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_worker_vcloud-master_on_vcloud-master/run_dir_666904df-6844-4198-b67c-54d277363f54/bin/utaipan-WLngWcDbfI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_666904df-6844-4198-b67c-54d277363f54/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b3c25b2e1855c4c0a30872aa894c42326e9c019 [2021-10-11 02:23:59,673 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:23:59,705 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:23:59,710 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:23:59,712 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:23:59,713 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:23:59,714 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_666904df-6844-4198-b67c-54d277363f54/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c [2021-10-11 02:23:59,792 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_666904df-6844-4198-b67c-54d277363f54/bin/utaipan-WLngWcDbfI/data/245845e01/2dbdf2fbe89a4015b9045985ab0950ff/FLAG9529e8c70 [2021-10-11 02:24:00,399 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:24:00,400 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_666904df-6844-4198-b67c-54d277363f54/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c [2021-10-11 02:24:00,420 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_666904df-6844-4198-b67c-54d277363f54/bin/utaipan-WLngWcDbfI/data/245845e01/2dbdf2fbe89a4015b9045985ab0950ff/FLAG9529e8c70 [2021-10-11 02:24:00,687 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_666904df-6844-4198-b67c-54d277363f54/bin/utaipan-WLngWcDbfI/data/245845e01/2dbdf2fbe89a4015b9045985ab0950ff [2021-10-11 02:24:00,689 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:24:00,691 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:24:00,706 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:24:00,706 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:24:00,712 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:24:00,713 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:24:00" (1/1) ... [2021-10-11 02:24:00,716 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cb2fdc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:00, skipping insertion in model container [2021-10-11 02:24:00,716 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:24:00" (1/1) ... [2021-10-11 02:24:00,728 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:24:00,792 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:24:01,001 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_666904df-6844-4198-b67c-54d277363f54/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[919,932] [2021-10-11 02:24:01,007 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_666904df-6844-4198-b67c-54d277363f54/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[1134,1147] [2021-10-11 02:24:01,014 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_666904df-6844-4198-b67c-54d277363f54/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[2208,2221] [2021-10-11 02:24:01,016 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_666904df-6844-4198-b67c-54d277363f54/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[2423,2436] [2021-10-11 02:24:01,019 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_666904df-6844-4198-b67c-54d277363f54/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[2918,2931] [2021-10-11 02:24:01,021 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_666904df-6844-4198-b67c-54d277363f54/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[3133,3146] [2021-10-11 02:24:01,023 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_666904df-6844-4198-b67c-54d277363f54/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[3435,3448] [2021-10-11 02:24:01,025 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_666904df-6844-4198-b67c-54d277363f54/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[3653,3666] [2021-10-11 02:24:01,027 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_666904df-6844-4198-b67c-54d277363f54/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[3929,3942] [2021-10-11 02:24:01,029 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_666904df-6844-4198-b67c-54d277363f54/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[4147,4160] [2021-10-11 02:24:01,033 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_666904df-6844-4198-b67c-54d277363f54/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[4717,4730] [2021-10-11 02:24:01,045 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_666904df-6844-4198-b67c-54d277363f54/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[4935,4948] [2021-10-11 02:24:01,092 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_666904df-6844-4198-b67c-54d277363f54/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[15828,15841] [2021-10-11 02:24:01,094 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_666904df-6844-4198-b67c-54d277363f54/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[16046,16059] [2021-10-11 02:24:01,097 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_666904df-6844-4198-b67c-54d277363f54/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[16441,16454] [2021-10-11 02:24:01,099 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_666904df-6844-4198-b67c-54d277363f54/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[16659,16672] [2021-10-11 02:24:01,106 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:24:01,116 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:24:01,135 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_666904df-6844-4198-b67c-54d277363f54/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[919,932] [2021-10-11 02:24:01,142 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_666904df-6844-4198-b67c-54d277363f54/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[1134,1147] [2021-10-11 02:24:01,153 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_666904df-6844-4198-b67c-54d277363f54/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[2208,2221] [2021-10-11 02:24:01,155 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_666904df-6844-4198-b67c-54d277363f54/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[2423,2436] [2021-10-11 02:24:01,157 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_666904df-6844-4198-b67c-54d277363f54/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[2918,2931] [2021-10-11 02:24:01,159 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_666904df-6844-4198-b67c-54d277363f54/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[3133,3146] [2021-10-11 02:24:01,161 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_666904df-6844-4198-b67c-54d277363f54/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[3435,3448] [2021-10-11 02:24:01,163 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_666904df-6844-4198-b67c-54d277363f54/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[3653,3666] [2021-10-11 02:24:01,165 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_666904df-6844-4198-b67c-54d277363f54/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[3929,3942] [2021-10-11 02:24:01,167 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_666904df-6844-4198-b67c-54d277363f54/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[4147,4160] [2021-10-11 02:24:01,169 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_666904df-6844-4198-b67c-54d277363f54/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[4717,4730] [2021-10-11 02:24:01,171 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_666904df-6844-4198-b67c-54d277363f54/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[4935,4948] [2021-10-11 02:24:01,210 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_666904df-6844-4198-b67c-54d277363f54/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[15828,15841] [2021-10-11 02:24:01,223 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_666904df-6844-4198-b67c-54d277363f54/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[16046,16059] [2021-10-11 02:24:01,225 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_666904df-6844-4198-b67c-54d277363f54/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[16441,16454] [2021-10-11 02:24:01,227 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_666904df-6844-4198-b67c-54d277363f54/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[16659,16672] [2021-10-11 02:24:01,232 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:24:01,259 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:24:01,268 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:01 WrapperNode [2021-10-11 02:24:01,269 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:24:01,270 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:24:01,270 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:24:01,270 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:24:01,279 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:01" (1/1) ... [2021-10-11 02:24:01,309 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:01" (1/1) ... [2021-10-11 02:24:01,352 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:24:01,352 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:24:01,353 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:24:01,353 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:24:01,362 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:01" (1/1) ... [2021-10-11 02:24:01,362 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:01" (1/1) ... [2021-10-11 02:24:01,367 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:01" (1/1) ... [2021-10-11 02:24:01,368 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:01" (1/1) ... [2021-10-11 02:24:01,379 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:01" (1/1) ... [2021-10-11 02:24:01,385 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:01" (1/1) ... [2021-10-11 02:24:01,389 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:01" (1/1) ... [2021-10-11 02:24:01,395 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:24:01,396 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:24:01,396 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:24:01,396 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:24:01,397 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:01" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_666904df-6844-4198-b67c-54d277363f54/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:24:01,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 02:24:01,510 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:24:01,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:24:01,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:24:02,662 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:24:02,662 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-11 02:24:02,666 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:24:02 BoogieIcfgContainer [2021-10-11 02:24:02,666 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:24:02,669 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:24:02,669 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:24:02,673 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:24:02,675 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:24:00" (1/3) ... [2021-10-11 02:24:02,676 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64c57206 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:24:02, skipping insertion in model container [2021-10-11 02:24:02,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:01" (2/3) ... [2021-10-11 02:24:02,677 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64c57206 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:24:02, skipping insertion in model container [2021-10-11 02:24:02,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:24:02" (3/3) ... [2021-10-11 02:24:02,679 INFO L111 eAbstractionObserver]: Analyzing ICFG apache-get-tag.i.p+lhb-reducer.c [2021-10-11 02:24:02,695 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:24:02,699 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 16 error locations. [2021-10-11 02:24:02,711 INFO L253 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2021-10-11 02:24:02,752 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:24:02,752 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:24:02,752 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:24:02,752 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:24:02,752 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:24:02,753 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:24:02,753 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:24:02,753 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:24:02,782 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states. [2021-10-11 02:24:02,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-11 02:24:02,790 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:24:02,791 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-11 02:24:02,792 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]=== [2021-10-11 02:24:02,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:24:02,805 INFO L82 PathProgramCache]: Analyzing trace with hash 547035891, now seen corresponding path program 1 times [2021-10-11 02:24:02,815 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:24:02,817 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526622955] [2021-10-11 02:24:02,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:24:02,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:24:03,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:24:03,079 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526622955] [2021-10-11 02:24:03,080 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:24:03,080 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:24:03,081 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753912054] [2021-10-11 02:24:03,085 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:24:03,086 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:24:03,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:24:03,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:24:03,107 INFO L87 Difference]: Start difference. First operand 118 states. Second operand 4 states. [2021-10-11 02:24:03,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:24:03,467 INFO L93 Difference]: Finished difference Result 126 states and 200 transitions. [2021-10-11 02:24:03,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:24:03,469 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2021-10-11 02:24:03,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:24:03,491 INFO L225 Difference]: With dead ends: 126 [2021-10-11 02:24:03,491 INFO L226 Difference]: Without dead ends: 113 [2021-10-11 02:24:03,505 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 [2021-10-11 02:24:03,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2021-10-11 02:24:03,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2021-10-11 02:24:03,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2021-10-11 02:24:03,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 134 transitions. [2021-10-11 02:24:03,552 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 134 transitions. Word has length 6 [2021-10-11 02:24:03,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:24:03,552 INFO L481 AbstractCegarLoop]: Abstraction has 113 states and 134 transitions. [2021-10-11 02:24:03,552 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:24:03,552 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 134 transitions. [2021-10-11 02:24:03,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-11 02:24:03,553 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:24:03,553 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:24:03,553 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 02:24:03,554 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]=== [2021-10-11 02:24:03,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:24:03,554 INFO L82 PathProgramCache]: Analyzing trace with hash -221752512, now seen corresponding path program 1 times [2021-10-11 02:24:03,555 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:24:03,555 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067276991] [2021-10-11 02:24:03,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:24:03,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:24:03,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:24:03,638 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067276991] [2021-10-11 02:24:03,639 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:24:03,639 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 02:24:03,639 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146607889] [2021-10-11 02:24:03,640 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:24:03,640 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:24:03,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:24:03,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:24:03,641 INFO L87 Difference]: Start difference. First operand 113 states and 134 transitions. Second operand 5 states. [2021-10-11 02:24:03,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:24:03,885 INFO L93 Difference]: Finished difference Result 113 states and 134 transitions. [2021-10-11 02:24:03,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:24:03,885 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2021-10-11 02:24:03,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:24:03,887 INFO L225 Difference]: With dead ends: 113 [2021-10-11 02:24:03,887 INFO L226 Difference]: Without dead ends: 108 [2021-10-11 02:24:03,888 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 [2021-10-11 02:24:03,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2021-10-11 02:24:03,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2021-10-11 02:24:03,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2021-10-11 02:24:03,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 120 transitions. [2021-10-11 02:24:03,898 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 120 transitions. Word has length 7 [2021-10-11 02:24:03,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:24:03,898 INFO L481 AbstractCegarLoop]: Abstraction has 108 states and 120 transitions. [2021-10-11 02:24:03,898 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:24:03,899 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 120 transitions. [2021-10-11 02:24:03,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-11 02:24:03,899 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:24:03,899 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:24:03,899 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 02:24:03,900 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]=== [2021-10-11 02:24:03,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:24:03,900 INFO L82 PathProgramCache]: Analyzing trace with hash 1948841692, now seen corresponding path program 1 times [2021-10-11 02:24:03,900 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:24:03,901 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948913075] [2021-10-11 02:24:03,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:24:03,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:24:03,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:24:03,954 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948913075] [2021-10-11 02:24:03,954 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:24:03,955 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 02:24:03,955 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417100407] [2021-10-11 02:24:03,955 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:24:03,955 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:24:03,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:24:03,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:24:03,956 INFO L87 Difference]: Start difference. First operand 108 states and 120 transitions. Second operand 5 states. [2021-10-11 02:24:04,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:24:04,221 INFO L93 Difference]: Finished difference Result 108 states and 120 transitions. [2021-10-11 02:24:04,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:24:04,221 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2021-10-11 02:24:04,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:24:04,222 INFO L225 Difference]: With dead ends: 108 [2021-10-11 02:24:04,222 INFO L226 Difference]: Without dead ends: 106 [2021-10-11 02:24:04,223 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 [2021-10-11 02:24:04,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2021-10-11 02:24:04,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2021-10-11 02:24:04,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2021-10-11 02:24:04,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 118 transitions. [2021-10-11 02:24:04,245 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 118 transitions. Word has length 10 [2021-10-11 02:24:04,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:24:04,245 INFO L481 AbstractCegarLoop]: Abstraction has 106 states and 118 transitions. [2021-10-11 02:24:04,245 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:24:04,245 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 118 transitions. [2021-10-11 02:24:04,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-11 02:24:04,246 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:24:04,246 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:24:04,246 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-11 02:24:04,246 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]=== [2021-10-11 02:24:04,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:24:04,247 INFO L82 PathProgramCache]: Analyzing trace with hash 284554395, now seen corresponding path program 1 times [2021-10-11 02:24:04,247 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:24:04,247 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827174612] [2021-10-11 02:24:04,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:24:04,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:24:04,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:24:04,317 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827174612] [2021-10-11 02:24:04,317 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:24:04,317 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:24:04,317 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30829510] [2021-10-11 02:24:04,318 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:24:04,318 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:24:04,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:24:04,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:24:04,319 INFO L87 Difference]: Start difference. First operand 106 states and 118 transitions. Second operand 4 states. [2021-10-11 02:24:04,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:24:04,464 INFO L93 Difference]: Finished difference Result 106 states and 118 transitions. [2021-10-11 02:24:04,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:24:04,464 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2021-10-11 02:24:04,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:24:04,467 INFO L225 Difference]: With dead ends: 106 [2021-10-11 02:24:04,467 INFO L226 Difference]: Without dead ends: 102 [2021-10-11 02:24:04,468 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 [2021-10-11 02:24:04,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2021-10-11 02:24:04,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2021-10-11 02:24:04,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2021-10-11 02:24:04,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 114 transitions. [2021-10-11 02:24:04,487 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 114 transitions. Word has length 11 [2021-10-11 02:24:04,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:24:04,487 INFO L481 AbstractCegarLoop]: Abstraction has 102 states and 114 transitions. [2021-10-11 02:24:04,488 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:24:04,488 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 114 transitions. [2021-10-11 02:24:04,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-11 02:24:04,488 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:24:04,489 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:24:04,489 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-11 02:24:04,489 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]=== [2021-10-11 02:24:04,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:24:04,490 INFO L82 PathProgramCache]: Analyzing trace with hash 246397519, now seen corresponding path program 1 times [2021-10-11 02:24:04,490 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:24:04,491 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532147765] [2021-10-11 02:24:04,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:24:04,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:24:04,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:24:04,581 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532147765] [2021-10-11 02:24:04,582 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:24:04,582 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 02:24:04,583 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740433019] [2021-10-11 02:24:04,583 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:24:04,583 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:24:04,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:24:04,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:24:04,585 INFO L87 Difference]: Start difference. First operand 102 states and 114 transitions. Second operand 5 states. [2021-10-11 02:24:04,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:24:04,815 INFO L93 Difference]: Finished difference Result 120 states and 134 transitions. [2021-10-11 02:24:04,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:24:04,815 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2021-10-11 02:24:04,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:24:04,817 INFO L225 Difference]: With dead ends: 120 [2021-10-11 02:24:04,818 INFO L226 Difference]: Without dead ends: 118 [2021-10-11 02:24:04,818 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 [2021-10-11 02:24:04,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2021-10-11 02:24:04,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 100. [2021-10-11 02:24:04,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2021-10-11 02:24:04,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 112 transitions. [2021-10-11 02:24:04,843 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 112 transitions. Word has length 12 [2021-10-11 02:24:04,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:24:04,844 INFO L481 AbstractCegarLoop]: Abstraction has 100 states and 112 transitions. [2021-10-11 02:24:04,844 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:24:04,844 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 112 transitions. [2021-10-11 02:24:04,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-11 02:24:04,850 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:24:04,851 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:24:04,851 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-11 02:24:04,851 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]=== [2021-10-11 02:24:04,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:24:04,856 INFO L82 PathProgramCache]: Analyzing trace with hash 248121423, now seen corresponding path program 1 times [2021-10-11 02:24:04,856 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:24:04,856 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174082826] [2021-10-11 02:24:04,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:24:04,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:24:04,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:24:04,914 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174082826] [2021-10-11 02:24:04,914 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:24:04,915 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 02:24:04,915 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408375076] [2021-10-11 02:24:04,915 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:24:04,915 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:24:04,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:24:04,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:24:04,916 INFO L87 Difference]: Start difference. First operand 100 states and 112 transitions. Second operand 5 states. [2021-10-11 02:24:05,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:24:05,106 INFO L93 Difference]: Finished difference Result 100 states and 112 transitions. [2021-10-11 02:24:05,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:24:05,107 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2021-10-11 02:24:05,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:24:05,108 INFO L225 Difference]: With dead ends: 100 [2021-10-11 02:24:05,108 INFO L226 Difference]: Without dead ends: 98 [2021-10-11 02:24:05,109 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 [2021-10-11 02:24:05,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2021-10-11 02:24:05,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2021-10-11 02:24:05,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2021-10-11 02:24:05,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 110 transitions. [2021-10-11 02:24:05,120 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 110 transitions. Word has length 12 [2021-10-11 02:24:05,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:24:05,120 INFO L481 AbstractCegarLoop]: Abstraction has 98 states and 110 transitions. [2021-10-11 02:24:05,120 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:24:05,120 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 110 transitions. [2021-10-11 02:24:05,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-11 02:24:05,121 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:24:05,122 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:24:05,122 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-11 02:24:05,122 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]=== [2021-10-11 02:24:05,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:24:05,123 INFO L82 PathProgramCache]: Analyzing trace with hash -951607394, now seen corresponding path program 1 times [2021-10-11 02:24:05,123 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:24:05,123 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285594090] [2021-10-11 02:24:05,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:24:05,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:24:05,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:24:05,291 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285594090] [2021-10-11 02:24:05,292 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:24:05,293 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-11 02:24:05,293 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931761116] [2021-10-11 02:24:05,293 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 02:24:05,293 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:24:05,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 02:24:05,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:24:05,294 INFO L87 Difference]: Start difference. First operand 98 states and 110 transitions. Second operand 6 states. [2021-10-11 02:24:05,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:24:05,545 INFO L93 Difference]: Finished difference Result 135 states and 151 transitions. [2021-10-11 02:24:05,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-11 02:24:05,545 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2021-10-11 02:24:05,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:24:05,547 INFO L225 Difference]: With dead ends: 135 [2021-10-11 02:24:05,547 INFO L226 Difference]: Without dead ends: 133 [2021-10-11 02:24:05,547 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 [2021-10-11 02:24:05,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2021-10-11 02:24:05,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 104. [2021-10-11 02:24:05,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2021-10-11 02:24:05,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 118 transitions. [2021-10-11 02:24:05,552 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 118 transitions. Word has length 13 [2021-10-11 02:24:05,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:24:05,552 INFO L481 AbstractCegarLoop]: Abstraction has 104 states and 118 transitions. [2021-10-11 02:24:05,553 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 02:24:05,553 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 118 transitions. [2021-10-11 02:24:05,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-11 02:24:05,554 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:24:05,554 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:24:05,554 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-11 02:24:05,554 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]=== [2021-10-11 02:24:05,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:24:05,555 INFO L82 PathProgramCache]: Analyzing trace with hash -950060249, now seen corresponding path program 1 times [2021-10-11 02:24:05,555 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:24:05,555 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987136480] [2021-10-11 02:24:05,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:24:05,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:24:05,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:24:05,597 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987136480] [2021-10-11 02:24:05,597 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:24:05,597 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 02:24:05,597 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661681582] [2021-10-11 02:24:05,598 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:24:05,598 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:24:05,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:24:05,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:24:05,599 INFO L87 Difference]: Start difference. First operand 104 states and 118 transitions. Second operand 5 states. [2021-10-11 02:24:05,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:24:05,885 INFO L93 Difference]: Finished difference Result 125 states and 141 transitions. [2021-10-11 02:24:05,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:24:05,886 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2021-10-11 02:24:05,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:24:05,888 INFO L225 Difference]: With dead ends: 125 [2021-10-11 02:24:05,888 INFO L226 Difference]: Without dead ends: 123 [2021-10-11 02:24:05,889 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 [2021-10-11 02:24:05,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2021-10-11 02:24:05,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 102. [2021-10-11 02:24:05,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2021-10-11 02:24:05,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 116 transitions. [2021-10-11 02:24:05,897 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 116 transitions. Word has length 13 [2021-10-11 02:24:05,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:24:05,897 INFO L481 AbstractCegarLoop]: Abstraction has 102 states and 116 transitions. [2021-10-11 02:24:05,897 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:24:05,897 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 116 transitions. [2021-10-11 02:24:05,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-11 02:24:05,903 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:24:05,903 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:24:05,903 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-11 02:24:05,904 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]=== [2021-10-11 02:24:05,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:24:05,908 INFO L82 PathProgramCache]: Analyzing trace with hash -898166314, now seen corresponding path program 1 times [2021-10-11 02:24:05,908 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:24:05,908 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174052371] [2021-10-11 02:24:05,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:24:05,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:24:06,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:24:06,072 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174052371] [2021-10-11 02:24:06,073 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:24:06,073 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-11 02:24:06,073 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785377653] [2021-10-11 02:24:06,074 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 02:24:06,074 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:24:06,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 02:24:06,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:24:06,078 INFO L87 Difference]: Start difference. First operand 102 states and 116 transitions. Second operand 6 states. [2021-10-11 02:24:06,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:24:06,311 INFO L93 Difference]: Finished difference Result 112 states and 126 transitions. [2021-10-11 02:24:06,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 02:24:06,312 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2021-10-11 02:24:06,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:24:06,313 INFO L225 Difference]: With dead ends: 112 [2021-10-11 02:24:06,314 INFO L226 Difference]: Without dead ends: 108 [2021-10-11 02:24:06,314 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 [2021-10-11 02:24:06,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2021-10-11 02:24:06,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 103. [2021-10-11 02:24:06,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2021-10-11 02:24:06,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 117 transitions. [2021-10-11 02:24:06,322 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 117 transitions. Word has length 13 [2021-10-11 02:24:06,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:24:06,322 INFO L481 AbstractCegarLoop]: Abstraction has 103 states and 117 transitions. [2021-10-11 02:24:06,322 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 02:24:06,322 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 117 transitions. [2021-10-11 02:24:06,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-11 02:24:06,323 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:24:06,323 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:24:06,323 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-11 02:24:06,324 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]=== [2021-10-11 02:24:06,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:24:06,324 INFO L82 PathProgramCache]: Analyzing trace with hash 612907497, now seen corresponding path program 1 times [2021-10-11 02:24:06,324 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:24:06,325 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474292095] [2021-10-11 02:24:06,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:24:06,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:24:06,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:24:06,428 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474292095] [2021-10-11 02:24:06,428 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:24:06,429 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-11 02:24:06,429 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803565025] [2021-10-11 02:24:06,429 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 02:24:06,429 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:24:06,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 02:24:06,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:24:06,430 INFO L87 Difference]: Start difference. First operand 103 states and 117 transitions. Second operand 6 states. [2021-10-11 02:24:06,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:24:06,678 INFO L93 Difference]: Finished difference Result 130 states and 146 transitions. [2021-10-11 02:24:06,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-11 02:24:06,678 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2021-10-11 02:24:06,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:24:06,679 INFO L225 Difference]: With dead ends: 130 [2021-10-11 02:24:06,679 INFO L226 Difference]: Without dead ends: 128 [2021-10-11 02:24:06,680 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 [2021-10-11 02:24:06,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2021-10-11 02:24:06,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 106. [2021-10-11 02:24:06,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2021-10-11 02:24:06,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 120 transitions. [2021-10-11 02:24:06,684 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 120 transitions. Word has length 14 [2021-10-11 02:24:06,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:24:06,684 INFO L481 AbstractCegarLoop]: Abstraction has 106 states and 120 transitions. [2021-10-11 02:24:06,684 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 02:24:06,684 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 120 transitions. [2021-10-11 02:24:06,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-11 02:24:06,685 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:24:06,685 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:24:06,685 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-11 02:24:06,686 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]=== [2021-10-11 02:24:06,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:24:06,686 INFO L82 PathProgramCache]: Analyzing trace with hash 333456161, now seen corresponding path program 1 times [2021-10-11 02:24:06,686 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:24:06,686 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249454611] [2021-10-11 02:24:06,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:24:06,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:24:06,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:24:06,722 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249454611] [2021-10-11 02:24:06,722 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:24:06,722 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:24:06,722 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350941413] [2021-10-11 02:24:06,722 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:24:06,723 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:24:06,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:24:06,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:24:06,723 INFO L87 Difference]: Start difference. First operand 106 states and 120 transitions. Second operand 4 states. [2021-10-11 02:24:06,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:24:06,811 INFO L93 Difference]: Finished difference Result 106 states and 120 transitions. [2021-10-11 02:24:06,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:24:06,812 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2021-10-11 02:24:06,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:24:06,813 INFO L225 Difference]: With dead ends: 106 [2021-10-11 02:24:06,813 INFO L226 Difference]: Without dead ends: 104 [2021-10-11 02:24:06,819 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 [2021-10-11 02:24:06,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2021-10-11 02:24:06,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2021-10-11 02:24:06,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2021-10-11 02:24:06,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 118 transitions. [2021-10-11 02:24:06,825 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 118 transitions. Word has length 15 [2021-10-11 02:24:06,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:24:06,826 INFO L481 AbstractCegarLoop]: Abstraction has 104 states and 118 transitions. [2021-10-11 02:24:06,826 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:24:06,826 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 118 transitions. [2021-10-11 02:24:06,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-11 02:24:06,828 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:24:06,828 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:24:06,828 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-11 02:24:06,828 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]=== [2021-10-11 02:24:06,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:24:06,830 INFO L82 PathProgramCache]: Analyzing trace with hash 1747210525, now seen corresponding path program 1 times [2021-10-11 02:24:06,830 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:24:06,830 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421428885] [2021-10-11 02:24:06,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:24:06,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:24:06,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:24:06,895 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421428885] [2021-10-11 02:24:06,895 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:24:06,895 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:24:06,895 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116090410] [2021-10-11 02:24:06,895 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:24:06,896 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:24:06,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:24:06,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:24:06,896 INFO L87 Difference]: Start difference. First operand 104 states and 118 transitions. Second operand 4 states. [2021-10-11 02:24:07,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:24:07,036 INFO L93 Difference]: Finished difference Result 104 states and 118 transitions. [2021-10-11 02:24:07,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:24:07,037 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2021-10-11 02:24:07,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:24:07,038 INFO L225 Difference]: With dead ends: 104 [2021-10-11 02:24:07,038 INFO L226 Difference]: Without dead ends: 100 [2021-10-11 02:24:07,039 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 [2021-10-11 02:24:07,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2021-10-11 02:24:07,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2021-10-11 02:24:07,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2021-10-11 02:24:07,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 114 transitions. [2021-10-11 02:24:07,043 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 114 transitions. Word has length 16 [2021-10-11 02:24:07,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:24:07,043 INFO L481 AbstractCegarLoop]: Abstraction has 100 states and 114 transitions. [2021-10-11 02:24:07,043 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:24:07,043 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 114 transitions. [2021-10-11 02:24:07,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-11 02:24:07,044 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:24:07,044 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:24:07,044 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-11 02:24:07,044 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]=== [2021-10-11 02:24:07,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:24:07,045 INFO L82 PathProgramCache]: Analyzing trace with hash -1396602585, now seen corresponding path program 1 times [2021-10-11 02:24:07,045 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:24:07,045 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29539191] [2021-10-11 02:24:07,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:24:07,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:24:07,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:24:07,111 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29539191] [2021-10-11 02:24:07,112 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:24:07,112 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-11 02:24:07,112 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158594513] [2021-10-11 02:24:07,112 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 02:24:07,112 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:24:07,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 02:24:07,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:24:07,113 INFO L87 Difference]: Start difference. First operand 100 states and 114 transitions. Second operand 6 states. [2021-10-11 02:24:07,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:24:07,347 INFO L93 Difference]: Finished difference Result 115 states and 131 transitions. [2021-10-11 02:24:07,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 02:24:07,347 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2021-10-11 02:24:07,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:24:07,348 INFO L225 Difference]: With dead ends: 115 [2021-10-11 02:24:07,348 INFO L226 Difference]: Without dead ends: 113 [2021-10-11 02:24:07,349 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 [2021-10-11 02:24:07,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2021-10-11 02:24:07,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 96. [2021-10-11 02:24:07,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2021-10-11 02:24:07,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 110 transitions. [2021-10-11 02:24:07,353 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 110 transitions. Word has length 17 [2021-10-11 02:24:07,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:24:07,353 INFO L481 AbstractCegarLoop]: Abstraction has 96 states and 110 transitions. [2021-10-11 02:24:07,353 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 02:24:07,369 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 110 transitions. [2021-10-11 02:24:07,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-11 02:24:07,370 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:24:07,370 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:24:07,370 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-11 02:24:07,370 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]=== [2021-10-11 02:24:07,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:24:07,371 INFO L82 PathProgramCache]: Analyzing trace with hash -1343161505, now seen corresponding path program 1 times [2021-10-11 02:24:07,371 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:24:07,371 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715902234] [2021-10-11 02:24:07,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:24:07,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:24:07,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:24:07,433 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715902234] [2021-10-11 02:24:07,434 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:24:07,434 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-11 02:24:07,434 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791627049] [2021-10-11 02:24:07,434 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 02:24:07,434 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:24:07,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 02:24:07,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:24:07,435 INFO L87 Difference]: Start difference. First operand 96 states and 110 transitions. Second operand 6 states. [2021-10-11 02:24:07,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:24:07,684 INFO L93 Difference]: Finished difference Result 96 states and 110 transitions. [2021-10-11 02:24:07,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:24:07,684 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2021-10-11 02:24:07,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:24:07,685 INFO L225 Difference]: With dead ends: 96 [2021-10-11 02:24:07,685 INFO L226 Difference]: Without dead ends: 92 [2021-10-11 02:24:07,685 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 [2021-10-11 02:24:07,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2021-10-11 02:24:07,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2021-10-11 02:24:07,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2021-10-11 02:24:07,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 106 transitions. [2021-10-11 02:24:07,689 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 106 transitions. Word has length 17 [2021-10-11 02:24:07,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:24:07,689 INFO L481 AbstractCegarLoop]: Abstraction has 92 states and 106 transitions. [2021-10-11 02:24:07,689 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 02:24:07,689 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 106 transitions. [2021-10-11 02:24:07,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-11 02:24:07,690 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:24:07,690 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:24:07,690 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-10-11 02:24:07,694 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]=== [2021-10-11 02:24:07,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:24:07,694 INFO L82 PathProgramCache]: Analyzing trace with hash -1655929480, now seen corresponding path program 1 times [2021-10-11 02:24:07,695 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:24:07,695 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647630611] [2021-10-11 02:24:07,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:24:07,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:24:07,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:24:07,749 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647630611] [2021-10-11 02:24:07,749 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:24:07,749 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-11 02:24:07,749 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052850545] [2021-10-11 02:24:07,750 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 02:24:07,750 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:24:07,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 02:24:07,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:24:07,751 INFO L87 Difference]: Start difference. First operand 92 states and 106 transitions. Second operand 6 states. [2021-10-11 02:24:07,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:24:07,994 INFO L93 Difference]: Finished difference Result 102 states and 118 transitions. [2021-10-11 02:24:07,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 02:24:07,995 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2021-10-11 02:24:07,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:24:07,995 INFO L225 Difference]: With dead ends: 102 [2021-10-11 02:24:07,995 INFO L226 Difference]: Without dead ends: 53 [2021-10-11 02:24:07,996 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-11 02:24:07,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2021-10-11 02:24:07,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2021-10-11 02:24:07,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2021-10-11 02:24:07,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 53 transitions. [2021-10-11 02:24:07,999 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 53 transitions. Word has length 17 [2021-10-11 02:24:07,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:24:07,999 INFO L481 AbstractCegarLoop]: Abstraction has 53 states and 53 transitions. [2021-10-11 02:24:07,999 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 02:24:07,999 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 53 transitions. [2021-10-11 02:24:08,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-10-11 02:24:08,000 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:24:08,000 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] [2021-10-11 02:24:08,000 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-10-11 02:24:08,001 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]=== [2021-10-11 02:24:08,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:24:08,001 INFO L82 PathProgramCache]: Analyzing trace with hash -789661849, now seen corresponding path program 1 times [2021-10-11 02:24:08,001 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:24:08,002 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542397727] [2021-10-11 02:24:08,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:24:08,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:24:08,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:24:08,162 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542397727] [2021-10-11 02:24:08,162 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:24:08,163 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-10-11 02:24:08,163 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103169491] [2021-10-11 02:24:08,163 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-10-11 02:24:08,163 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:24:08,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-11 02:24:08,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2021-10-11 02:24:08,164 INFO L87 Difference]: Start difference. First operand 53 states and 53 transitions. Second operand 13 states. [2021-10-11 02:24:08,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:24:08,305 INFO L93 Difference]: Finished difference Result 53 states and 53 transitions. [2021-10-11 02:24:08,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-11 02:24:08,306 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 43 [2021-10-11 02:24:08,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:24:08,306 INFO L225 Difference]: With dead ends: 53 [2021-10-11 02:24:08,306 INFO L226 Difference]: Without dead ends: 51 [2021-10-11 02:24:08,307 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2021-10-11 02:24:08,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2021-10-11 02:24:08,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2021-10-11 02:24:08,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2021-10-11 02:24:08,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 51 transitions. [2021-10-11 02:24:08,309 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 51 transitions. Word has length 43 [2021-10-11 02:24:08,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:24:08,309 INFO L481 AbstractCegarLoop]: Abstraction has 51 states and 51 transitions. [2021-10-11 02:24:08,309 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2021-10-11 02:24:08,309 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 51 transitions. [2021-10-11 02:24:08,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-10-11 02:24:08,310 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:24:08,310 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] [2021-10-11 02:24:08,310 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-10-11 02:24:08,311 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]=== [2021-10-11 02:24:08,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:24:08,311 INFO L82 PathProgramCache]: Analyzing trace with hash -789645961, now seen corresponding path program 1 times [2021-10-11 02:24:08,311 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:24:08,311 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12711801] [2021-10-11 02:24:08,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:24:08,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:24:08,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:24:08,469 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12711801] [2021-10-11 02:24:08,469 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:24:08,469 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-10-11 02:24:08,470 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597687245] [2021-10-11 02:24:08,470 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-10-11 02:24:08,470 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:24:08,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-11 02:24:08,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2021-10-11 02:24:08,471 INFO L87 Difference]: Start difference. First operand 51 states and 51 transitions. Second operand 13 states. [2021-10-11 02:24:08,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:24:08,673 INFO L93 Difference]: Finished difference Result 58 states and 58 transitions. [2021-10-11 02:24:08,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-11 02:24:08,674 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 43 [2021-10-11 02:24:08,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:24:08,674 INFO L225 Difference]: With dead ends: 58 [2021-10-11 02:24:08,675 INFO L226 Difference]: Without dead ends: 56 [2021-10-11 02:24:08,675 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2021-10-11 02:24:08,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2021-10-11 02:24:08,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 49. [2021-10-11 02:24:08,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2021-10-11 02:24:08,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 49 transitions. [2021-10-11 02:24:08,677 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 49 transitions. Word has length 43 [2021-10-11 02:24:08,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:24:08,677 INFO L481 AbstractCegarLoop]: Abstraction has 49 states and 49 transitions. [2021-10-11 02:24:08,678 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2021-10-11 02:24:08,678 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 49 transitions. [2021-10-11 02:24:08,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-10-11 02:24:08,678 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:24:08,678 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] [2021-10-11 02:24:08,678 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-10-11 02:24:08,679 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]=== [2021-10-11 02:24:08,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:24:08,679 INFO L82 PathProgramCache]: Analyzing trace with hash 1290290900, now seen corresponding path program 1 times [2021-10-11 02:24:08,679 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:24:08,680 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069737083] [2021-10-11 02:24:08,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:24:08,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:24:08,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:24:08,835 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069737083] [2021-10-11 02:24:08,835 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:24:08,836 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-11 02:24:08,836 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897514231] [2021-10-11 02:24:08,838 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-10-11 02:24:08,838 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:24:08,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-11 02:24:08,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-11 02:24:08,839 INFO L87 Difference]: Start difference. First operand 49 states and 49 transitions. Second operand 7 states. [2021-10-11 02:24:08,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:24:08,962 INFO L93 Difference]: Finished difference Result 49 states and 49 transitions. [2021-10-11 02:24:08,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:24:08,963 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 44 [2021-10-11 02:24:08,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:24:08,963 INFO L225 Difference]: With dead ends: 49 [2021-10-11 02:24:08,963 INFO L226 Difference]: Without dead ends: 45 [2021-10-11 02:24:08,964 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-11 02:24:08,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2021-10-11 02:24:08,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2021-10-11 02:24:08,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2021-10-11 02:24:08,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 45 transitions. [2021-10-11 02:24:08,966 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 45 transitions. Word has length 44 [2021-10-11 02:24:08,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:24:08,966 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 45 transitions. [2021-10-11 02:24:08,966 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-10-11 02:24:08,966 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 45 transitions. [2021-10-11 02:24:08,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-10-11 02:24:08,967 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:24:08,967 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] [2021-10-11 02:24:08,967 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-10-11 02:24:08,967 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]=== [2021-10-11 02:24:08,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:24:08,968 INFO L82 PathProgramCache]: Analyzing trace with hash 1290783444, now seen corresponding path program 1 times [2021-10-11 02:24:08,968 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:24:08,968 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826447925] [2021-10-11 02:24:08,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:24:08,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:24:09,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:24:09,105 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826447925] [2021-10-11 02:24:09,105 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:24:09,106 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-11 02:24:09,106 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581845968] [2021-10-11 02:24:09,106 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-10-11 02:24:09,106 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:24:09,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-11 02:24:09,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-11 02:24:09,107 INFO L87 Difference]: Start difference. First operand 45 states and 45 transitions. Second operand 7 states. [2021-10-11 02:24:09,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:24:09,257 INFO L93 Difference]: Finished difference Result 49 states and 49 transitions. [2021-10-11 02:24:09,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 02:24:09,258 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 44 [2021-10-11 02:24:09,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:24:09,259 INFO L225 Difference]: With dead ends: 49 [2021-10-11 02:24:09,259 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 02:24:09,261 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-11 02:24:09,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 02:24:09,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 02:24:09,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 02:24:09,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 02:24:09,262 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 44 [2021-10-11 02:24:09,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:24:09,262 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 02:24:09,262 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-10-11 02:24:09,262 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 02:24:09,262 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 02:24:09,263 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-10-11 02:24:09,265 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-11 02:24:09,446 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 48) no Hoare annotation was computed. [2021-10-11 02:24:09,447 INFO L262 CegarLoopResult]: For program point L217(lines 217 229) no Hoare annotation was computed. [2021-10-11 02:24:09,447 INFO L262 CegarLoopResult]: For program point L597(lines 597 969) no Hoare annotation was computed. [2021-10-11 02:24:09,447 INFO L262 CegarLoopResult]: For program point L366(lines 366 991) no Hoare annotation was computed. [2021-10-11 02:24:09,447 INFO L262 CegarLoopResult]: For program point L267(lines 267 275) no Hoare annotation was computed. [2021-10-11 02:24:09,447 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION(line 883) no Hoare annotation was computed. [2021-10-11 02:24:09,447 INFO L262 CegarLoopResult]: For program point L581(lines 581 971) no Hoare annotation was computed. [2021-10-11 02:24:09,447 INFO L262 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2021-10-11 02:24:09,447 INFO L262 CegarLoopResult]: For program point L895(line 895) no Hoare annotation was computed. [2021-10-11 02:24:09,448 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-11 02:24:09,448 INFO L262 CegarLoopResult]: For program point L317(lines 317 994) no Hoare annotation was computed. [2021-10-11 02:24:09,448 INFO L262 CegarLoopResult]: For program point L185(line 185) no Hoare annotation was computed. [2021-10-11 02:24:09,448 INFO L262 CegarLoopResult]: For program point L400(lines 400 424) no Hoare annotation was computed. [2021-10-11 02:24:09,448 INFO L262 CegarLoopResult]: For program point L136(lines 136 242) no Hoare annotation was computed. [2021-10-11 02:24:09,448 INFO L262 CegarLoopResult]: For program point L103(lines 103 125) no Hoare annotation was computed. [2021-10-11 02:24:09,448 INFO L262 CegarLoopResult]: For program point L615(lines 615 626) no Hoare annotation was computed. [2021-10-11 02:24:09,448 INFO L262 CegarLoopResult]: For program point L929(lines 929 941) no Hoare annotation was computed. [2021-10-11 02:24:09,448 INFO L262 CegarLoopResult]: For program point L219(line 219) no Hoare annotation was computed. [2021-10-11 02:24:09,448 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION(line 269) no Hoare annotation was computed. [2021-10-11 02:24:09,448 INFO L262 CegarLoopResult]: For program point L665(lines 665 963) no Hoare annotation was computed. [2021-10-11 02:24:09,449 INFO L262 CegarLoopResult]: For program point L434(lines 434 985) no Hoare annotation was computed. [2021-10-11 02:24:09,449 INFO L262 CegarLoopResult]: For program point L269(line 269) no Hoare annotation was computed. [2021-10-11 02:24:09,449 INFO L262 CegarLoopResult]: For program point L649(lines 649 965) no Hoare annotation was computed. [2021-10-11 02:24:09,449 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 173) no Hoare annotation was computed. [2021-10-11 02:24:09,449 INFO L262 CegarLoopResult]: For program point L385(lines 385 988) no Hoare annotation was computed. [2021-10-11 02:24:09,449 INFO L262 CegarLoopResult]: For program point L22(lines 22 1005) no Hoare annotation was computed. [2021-10-11 02:24:09,449 INFO L262 CegarLoopResult]: For program point L468(lines 468 492) no Hoare annotation was computed. [2021-10-11 02:24:09,449 INFO L262 CegarLoopResult]: For program point L881(lines 881 907) no Hoare annotation was computed. [2021-10-11 02:24:09,449 INFO L262 CegarLoopResult]: For program point L171(lines 171 193) no Hoare annotation was computed. [2021-10-11 02:24:09,449 INFO L262 CegarLoopResult]: For program point L683(lines 683 694) no Hoare annotation was computed. [2021-10-11 02:24:09,449 INFO L262 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2021-10-11 02:24:09,450 INFO L262 CegarLoopResult]: For program point L72(lines 72 288) no Hoare annotation was computed. [2021-10-11 02:24:09,450 INFO L262 CegarLoopResult]: For program point L931(line 931) no Hoare annotation was computed. [2021-10-11 02:24:09,450 INFO L262 CegarLoopResult]: For program point L733(lines 733 957) no Hoare annotation was computed. [2021-10-11 02:24:09,450 INFO L262 CegarLoopResult]: For program point L155(lines 155 234) no Hoare annotation was computed. [2021-10-11 02:24:09,450 INFO L262 CegarLoopResult]: For program point L502(lines 502 979) no Hoare annotation was computed. [2021-10-11 02:24:09,450 INFO L262 CegarLoopResult]: For program point L205(lines 205 231) no Hoare annotation was computed. [2021-10-11 02:24:09,450 INFO L262 CegarLoopResult]: For program point L717(lines 717 959) no Hoare annotation was computed. [2021-10-11 02:24:09,450 INFO L262 CegarLoopResult]: For program point L453(lines 453 982) no Hoare annotation was computed. [2021-10-11 02:24:09,450 INFO L265 CegarLoopResult]: At program point L932(lines 17 1006) the Hoare annotation is: true [2021-10-11 02:24:09,450 INFO L262 CegarLoopResult]: For program point L866(lines 866 946) no Hoare annotation was computed. [2021-10-11 02:24:09,451 INFO L262 CegarLoopResult]: For program point L255(lines 255 277) no Hoare annotation was computed. [2021-10-11 02:24:09,451 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION(line 207) no Hoare annotation was computed. [2021-10-11 02:24:09,451 INFO L262 CegarLoopResult]: For program point L536(lines 536 560) no Hoare annotation was computed. [2021-10-11 02:24:09,451 INFO L262 CegarLoopResult]: For program point L883(line 883) no Hoare annotation was computed. [2021-10-11 02:24:09,451 INFO L262 CegarLoopResult]: For program point L751(lines 751 762) no Hoare annotation was computed. [2021-10-11 02:24:09,451 INFO L262 CegarLoopResult]: For program point L173(line 173) no Hoare annotation was computed. [2021-10-11 02:24:09,451 INFO L262 CegarLoopResult]: For program point L801(lines 801 951) no Hoare annotation was computed. [2021-10-11 02:24:09,451 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-11 02:24:09,451 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 185) no Hoare annotation was computed. [2021-10-11 02:24:09,451 INFO L262 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2021-10-11 02:24:09,451 INFO L262 CegarLoopResult]: For program point L570(lines 570 973) no Hoare annotation was computed. [2021-10-11 02:24:09,451 INFO L262 CegarLoopResult]: For program point L917(lines 917 943) no Hoare annotation was computed. [2021-10-11 02:24:09,452 INFO L262 CegarLoopResult]: For program point L785(lines 785 953) no Hoare annotation was computed. [2021-10-11 02:24:09,452 INFO L262 CegarLoopResult]: For program point L207(line 207) no Hoare annotation was computed. [2021-10-11 02:24:09,452 INFO L262 CegarLoopResult]: For program point L521(lines 521 976) no Hoare annotation was computed. [2021-10-11 02:24:09,452 INFO L258 CegarLoopResult]: At program point L868(lines 26 1000) 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)) [2021-10-11 02:24:09,452 INFO L262 CegarLoopResult]: For program point L257(line 257) no Hoare annotation was computed. [2021-10-11 02:24:09,452 INFO L262 CegarLoopResult]: For program point L604(lines 604 628) no Hoare annotation was computed. [2021-10-11 02:24:09,452 INFO L262 CegarLoopResult]: For program point L26(lines 26 1000) no Hoare annotation was computed. [2021-10-11 02:24:09,452 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 105) no Hoare annotation was computed. [2021-10-11 02:24:09,452 INFO L262 CegarLoopResult]: For program point L819(lines 819 830) no Hoare annotation was computed. [2021-10-11 02:24:09,452 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION(line 895) no Hoare annotation was computed. [2021-10-11 02:24:09,452 INFO L262 CegarLoopResult]: For program point L638(lines 638 967) no Hoare annotation was computed. [2021-10-11 02:24:09,453 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION(line 219) no Hoare annotation was computed. [2021-10-11 02:24:09,453 INFO L262 CegarLoopResult]: For program point L919(line 919) no Hoare annotation was computed. [2021-10-11 02:24:09,453 INFO L262 CegarLoopResult]: For program point L853(lines 853 947) no Hoare annotation was computed. [2021-10-11 02:24:09,453 INFO L262 CegarLoopResult]: For program point L143(lines 143 236) no Hoare annotation was computed. [2021-10-11 02:24:09,453 INFO L262 CegarLoopResult]: For program point L589(lines 589 970) no Hoare annotation was computed. [2021-10-11 02:24:09,453 INFO L262 CegarLoopResult]: For program point L325(lines 325 993) no Hoare annotation was computed. [2021-10-11 02:24:09,453 INFO L262 CegarLoopResult]: For program point L672(lines 672 696) no Hoare annotation was computed. [2021-10-11 02:24:09,453 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 145) no Hoare annotation was computed. [2021-10-11 02:24:09,453 INFO L262 CegarLoopResult]: For program point L309(lines 309 995) no Hoare annotation was computed. [2021-10-11 02:24:09,453 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION(line 931) no Hoare annotation was computed. [2021-10-11 02:24:09,453 INFO L258 CegarLoopResult]: At program point L904(lines 65 999) the Hoare annotation is: (and (<= 1 ULTIMATE.start_main_~main__t~0) (<= ULTIMATE.start_main_~main__t~0 ULTIMATE.start_main_~main__tagbuf_len~0)) [2021-10-11 02:24:09,454 INFO L262 CegarLoopResult]: For program point L706(lines 706 961) no Hoare annotation was computed. [2021-10-11 02:24:09,454 INFO L262 CegarLoopResult]: For program point L343(lines 343 354) no Hoare annotation was computed. [2021-10-11 02:24:09,454 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 117) no Hoare annotation was computed. [2021-10-11 02:24:09,454 INFO L262 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2021-10-11 02:24:09,454 INFO L262 CegarLoopResult]: For program point L657(lines 657 964) no Hoare annotation was computed. [2021-10-11 02:24:09,454 INFO L262 CegarLoopResult]: For program point L46(lines 46 56) no Hoare annotation was computed. [2021-10-11 02:24:09,454 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION(line 919) no Hoare annotation was computed. [2021-10-11 02:24:09,454 INFO L265 CegarLoopResult]: At program point L1004(lines 22 1005) the Hoare annotation is: true [2021-10-11 02:24:09,454 INFO L262 CegarLoopResult]: For program point L393(lines 393 987) no Hoare annotation was computed. [2021-10-11 02:24:09,454 INFO L262 CegarLoopResult]: For program point L740(lines 740 764) no Hoare annotation was computed. [2021-10-11 02:24:09,454 INFO L262 CegarLoopResult]: For program point L96(lines 96 285) no Hoare annotation was computed. [2021-10-11 02:24:09,454 INFO L262 CegarLoopResult]: For program point L377(lines 377 989) no Hoare annotation was computed. [2021-10-11 02:24:09,455 INFO L262 CegarLoopResult]: For program point L774(lines 774 955) no Hoare annotation was computed. [2021-10-11 02:24:09,455 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 157) no Hoare annotation was computed. [2021-10-11 02:24:09,455 INFO L262 CegarLoopResult]: For program point L411(lines 411 422) no Hoare annotation was computed. [2021-10-11 02:24:09,455 INFO L262 CegarLoopResult]: For program point L725(lines 725 958) no Hoare annotation was computed. [2021-10-11 02:24:09,455 INFO L262 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2021-10-11 02:24:09,455 INFO L262 CegarLoopResult]: For program point L461(lines 461 981) no Hoare annotation was computed. [2021-10-11 02:24:09,455 INFO L258 CegarLoopResult]: At program point L940(lines 858 947) the Hoare annotation is: (and (<= 9 ULTIMATE.start_main_~main__t~0) (<= ULTIMATE.start_main_~main__t~0 ULTIMATE.start_main_~main__tagbuf_len~0)) [2021-10-11 02:24:09,455 INFO L262 CegarLoopResult]: For program point L874(lines 874 945) no Hoare annotation was computed. [2021-10-11 02:24:09,455 INFO L262 CegarLoopResult]: For program point L808(lines 808 832) no Hoare annotation was computed. [2021-10-11 02:24:09,455 INFO L262 CegarLoopResult]: For program point L164(lines 164 233) no Hoare annotation was computed. [2021-10-11 02:24:09,456 INFO L262 CegarLoopResult]: For program point L65(lines 65 999) no Hoare annotation was computed. [2021-10-11 02:24:09,456 INFO L262 CegarLoopResult]: For program point L445(lines 445 983) no Hoare annotation was computed. [2021-10-11 02:24:09,456 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 36) no Hoare annotation was computed. [2021-10-11 02:24:09,456 INFO L262 CegarLoopResult]: For program point L115(lines 115 123) no Hoare annotation was computed. [2021-10-11 02:24:09,456 INFO L262 CegarLoopResult]: For program point L842(lines 842 949) no Hoare annotation was computed. [2021-10-11 02:24:09,456 INFO L262 CegarLoopResult]: For program point L132(lines 132 284) no Hoare annotation was computed. [2021-10-11 02:24:09,456 INFO L262 CegarLoopResult]: For program point L479(lines 479 490) no Hoare annotation was computed. [2021-10-11 02:24:09,456 INFO L262 CegarLoopResult]: For program point L793(lines 793 952) no Hoare annotation was computed. [2021-10-11 02:24:09,456 INFO L262 CegarLoopResult]: For program point L248(lines 248 283) no Hoare annotation was computed. [2021-10-11 02:24:09,456 INFO L262 CegarLoopResult]: For program point L83(lines 83 286) no Hoare annotation was computed. [2021-10-11 02:24:09,456 INFO L262 CegarLoopResult]: For program point L529(lines 529 975) no Hoare annotation was computed. [2021-10-11 02:24:09,457 INFO L262 CegarLoopResult]: For program point L298(lines 298 997) no Hoare annotation was computed. [2021-10-11 02:24:09,457 INFO L262 CegarLoopResult]: For program point L34(lines 34 58) no Hoare annotation was computed. [2021-10-11 02:24:09,457 INFO L262 CegarLoopResult]: For program point L513(lines 513 977) no Hoare annotation was computed. [2021-10-11 02:24:09,457 INFO L262 CegarLoopResult]: For program point L893(lines 893 905) no Hoare annotation was computed. [2021-10-11 02:24:09,457 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION(line 257) no Hoare annotation was computed. [2021-10-11 02:24:09,457 INFO L258 CegarLoopResult]: At program point L282(lines 132 284) 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)) [2021-10-11 02:24:09,457 INFO L262 CegarLoopResult]: For program point L183(lines 183 191) no Hoare annotation was computed. [2021-10-11 02:24:09,457 INFO L262 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2021-10-11 02:24:09,457 INFO L262 CegarLoopResult]: For program point L332(lines 332 356) no Hoare annotation was computed. [2021-10-11 02:24:09,457 INFO L262 CegarLoopResult]: For program point L547(lines 547 558) no Hoare annotation was computed. [2021-10-11 02:24:09,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:24:09 BoogieIcfgContainer [2021-10-11 02:24:09,474 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:24:09,475 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:24:09,475 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:24:09,475 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:24:09,475 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:24:02" (3/4) ... [2021-10-11 02:24:09,478 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 02:24:09,495 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2021-10-11 02:24:09,496 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-11 02:24:09,497 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:24:09,499 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:24:09,631 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_666904df-6844-4198-b67c-54d277363f54/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:24:09,631 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:24:09,632 INFO L168 Benchmark]: Toolchain (without parser) took 8940.58 ms. Allocated memory was 111.1 MB in the beginning and 172.0 MB in the end (delta: 60.8 MB). Free memory was 69.0 MB in the beginning and 103.7 MB in the end (delta: -34.7 MB). Peak memory consumption was 25.0 MB. Max. memory is 16.1 GB. [2021-10-11 02:24:09,633 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 111.1 MB. Free memory is still 86.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:24:09,634 INFO L168 Benchmark]: CACSL2BoogieTranslator took 563.04 ms. Allocated memory is still 111.1 MB. Free memory was 68.8 MB in the beginning and 73.9 MB in the end (delta: -5.1 MB). Peak memory consumption was 8.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:24:09,634 INFO L168 Benchmark]: Boogie Procedure Inliner took 81.71 ms. Allocated memory is still 111.1 MB. Free memory was 73.9 MB in the beginning and 70.5 MB in the end (delta: 3.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-11 02:24:09,634 INFO L168 Benchmark]: Boogie Preprocessor took 42.40 ms. Allocated memory is still 111.1 MB. Free memory was 70.5 MB in the beginning and 68.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:24:09,635 INFO L168 Benchmark]: RCFGBuilder took 1270.34 ms. Allocated memory was 111.1 MB in the beginning and 142.6 MB in the end (delta: 31.5 MB). Free memory was 68.4 MB in the beginning and 92.8 MB in the end (delta: -24.4 MB). Peak memory consumption was 40.2 MB. Max. memory is 16.1 GB. [2021-10-11 02:24:09,635 INFO L168 Benchmark]: TraceAbstraction took 6805.76 ms. Allocated memory was 142.6 MB in the beginning and 172.0 MB in the end (delta: 29.4 MB). Free memory was 91.6 MB in the beginning and 115.3 MB in the end (delta: -23.7 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:24:09,635 INFO L168 Benchmark]: Witness Printer took 156.08 ms. Allocated memory is still 172.0 MB. Free memory was 115.3 MB in the beginning and 103.7 MB in the end (delta: 11.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:24:09,637 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 111.1 MB. Free memory is still 86.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 563.04 ms. Allocated memory is still 111.1 MB. Free memory was 68.8 MB in the beginning and 73.9 MB in the end (delta: -5.1 MB). Peak memory consumption was 8.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 81.71 ms. Allocated memory is still 111.1 MB. Free memory was 73.9 MB in the beginning and 70.5 MB in the end (delta: 3.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 42.40 ms. Allocated memory is still 111.1 MB. Free memory was 70.5 MB in the beginning and 68.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1270.34 ms. Allocated memory was 111.1 MB in the beginning and 142.6 MB in the end (delta: 31.5 MB). Free memory was 68.4 MB in the beginning and 92.8 MB in the end (delta: -24.4 MB). Peak memory consumption was 40.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 6805.76 ms. Allocated memory was 142.6 MB in the beginning and 172.0 MB in the end (delta: 29.4 MB). Free memory was 91.6 MB in the beginning and 115.3 MB in the end (delta: -23.7 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. * Witness Printer took 156.08 ms. Allocated memory is still 172.0 MB. Free memory was 115.3 MB in the beginning and 103.7 MB in the end (delta: 11.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 48]: 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: 185]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 931]: 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: 36]: 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: 883]: 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: 157]: 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: 257]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 919]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 895]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 269]: 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 - AllSpecificationsHoldResult: All specifications hold 16 specifications checked. All of them hold - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: 0 <= main__t && main__t <= main__tagbuf_len - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 132]: Loop Invariant Derived loop invariant: main__t < main__tagbuf_len && 1 <= main__t - InvariantResult [Line: 65]: Loop Invariant Derived loop invariant: 1 <= main__t && main__t <= main__tagbuf_len - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 858]: Loop Invariant Derived loop invariant: 9 <= main__t && main__t <= main__tagbuf_len - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 118 locations, 16 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.5s, OverallIterations: 19, TraceHistogramMax: 1, AutomataDifference: 4.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1016 SDtfs, 1786 SDslu, 1337 SDs, 0 SdLazy, 3413 SolverSat, 385 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 175 GetRequests, 69 SyntacticMatches, 2 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=118occurred 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: 0.1s AutomataMinimizationTime, 19 MinimizatonAttempts, 119 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 16 NumberOfFragments, 30 HoareAnnotationTreeSize, 6 FomulaSimplifications, 4032 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 325 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 367 NumberOfCodeBlocks, 367 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 348 ConstructedInterpolants, 0 QuantifiedInterpolants, 30836 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 19 InterpolantComputations, 19 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...