./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-vcloud-master/worker/run_dir_ba1d13bd-825c-46c6-8f74-2fc79f9a8006/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_ba1d13bd-825c-46c6-8f74-2fc79f9a8006/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ba1d13bd-825c-46c6-8f74-2fc79f9a8006/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ba1d13bd-825c-46c6-8f74-2fc79f9a8006/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ba1d13bd-825c-46c6-8f74-2fc79f9a8006/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ba1d13bd-825c-46c6-8f74-2fc79f9a8006/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4b3c25b2e1855c4c0a30872aa894c42326e9c019 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-09 15:37:48,988 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 15:37:48,989 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 15:37:49,011 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 15:37:49,011 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 15:37:49,012 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 15:37:49,014 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 15:37:49,016 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 15:37:49,017 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 15:37:49,018 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 15:37:49,019 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 15:37:49,020 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 15:37:49,021 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 15:37:49,022 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 15:37:49,023 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 15:37:49,024 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 15:37:49,025 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 15:37:49,026 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 15:37:49,028 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 15:37:49,030 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 15:37:49,037 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 15:37:49,038 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 15:37:49,040 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 15:37:49,041 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 15:37:49,044 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 15:37:49,045 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 15:37:49,045 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 15:37:49,046 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 15:37:49,047 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 15:37:49,047 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 15:37:49,048 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 15:37:49,048 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 15:37:49,049 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 15:37:49,050 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 15:37:49,051 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 15:37:49,051 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 15:37:49,051 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 15:37:49,052 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 15:37:49,052 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 15:37:49,053 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 15:37:49,056 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 15:37:49,057 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ba1d13bd-825c-46c6-8f74-2fc79f9a8006/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-09 15:37:49,081 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 15:37:49,081 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 15:37:49,081 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 15:37:49,082 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 15:37:49,082 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 15:37:49,082 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 15:37:49,082 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 15:37:49,082 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 15:37:49,082 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 15:37:49,082 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 15:37:49,082 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 15:37:49,083 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 15:37:49,083 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 15:37:49,083 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 15:37:49,083 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 15:37:49,084 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 15:37:49,084 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 15:37:49,084 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 15:37:49,084 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 15:37:49,084 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 15:37:49,084 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 15:37:49,084 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 15:37:49,084 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 15:37:49,084 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 15:37:49,085 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 15:37:49,085 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 15:37:49,085 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 15:37:49,085 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 15:37:49,085 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 15:37:49,085 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 15:37:49,085 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 15:37:49,086 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 15:37:49,086 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 15:37:49,086 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 15:37:49,086 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 15:37:49,086 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 15:37:49,086 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 15:37:49,086 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 15:37:49,086 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 15:37:49,086 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_ba1d13bd-825c-46c6-8f74-2fc79f9a8006/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_ba1d13bd-825c-46c6-8f74-2fc79f9a8006/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b3c25b2e1855c4c0a30872aa894c42326e9c019 [2020-12-09 15:37:49,268 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 15:37:49,288 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 15:37:49,290 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 15:37:49,291 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 15:37:49,292 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 15:37:49,293 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ba1d13bd-825c-46c6-8f74-2fc79f9a8006/bin/utaipan/../../sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c [2020-12-09 15:37:49,332 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ba1d13bd-825c-46c6-8f74-2fc79f9a8006/bin/utaipan/data/e20fe0aa5/bc1a5352b7874ceaa034d14732f9d9c2/FLAG353028cb4 [2020-12-09 15:37:49,827 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 15:37:49,828 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ba1d13bd-825c-46c6-8f74-2fc79f9a8006/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c [2020-12-09 15:37:49,835 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ba1d13bd-825c-46c6-8f74-2fc79f9a8006/bin/utaipan/data/e20fe0aa5/bc1a5352b7874ceaa034d14732f9d9c2/FLAG353028cb4 [2020-12-09 15:37:50,318 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ba1d13bd-825c-46c6-8f74-2fc79f9a8006/bin/utaipan/data/e20fe0aa5/bc1a5352b7874ceaa034d14732f9d9c2 [2020-12-09 15:37:50,320 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 15:37:50,321 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 15:37:50,321 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 15:37:50,322 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 15:37:50,324 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 15:37:50,324 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:37:50" (1/1) ... [2020-12-09 15:37:50,325 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@151ad6ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:37:50, skipping insertion in model container [2020-12-09 15:37:50,326 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:37:50" (1/1) ... [2020-12-09 15:37:50,330 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 15:37:50,359 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 15:37:50,462 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_ba1d13bd-825c-46c6-8f74-2fc79f9a8006/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[919,932] [2020-12-09 15:37:50,466 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_ba1d13bd-825c-46c6-8f74-2fc79f9a8006/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[1134,1147] [2020-12-09 15:37:50,473 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_ba1d13bd-825c-46c6-8f74-2fc79f9a8006/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[2208,2221] [2020-12-09 15:37:50,474 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_ba1d13bd-825c-46c6-8f74-2fc79f9a8006/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[2423,2436] [2020-12-09 15:37:50,478 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_ba1d13bd-825c-46c6-8f74-2fc79f9a8006/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[2918,2931] [2020-12-09 15:37:50,480 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_ba1d13bd-825c-46c6-8f74-2fc79f9a8006/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[3133,3146] [2020-12-09 15:37:50,482 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_ba1d13bd-825c-46c6-8f74-2fc79f9a8006/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[3435,3448] [2020-12-09 15:37:50,483 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_ba1d13bd-825c-46c6-8f74-2fc79f9a8006/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[3653,3666] [2020-12-09 15:37:50,485 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_ba1d13bd-825c-46c6-8f74-2fc79f9a8006/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[3929,3942] [2020-12-09 15:37:50,487 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_ba1d13bd-825c-46c6-8f74-2fc79f9a8006/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[4147,4160] [2020-12-09 15:37:50,490 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_ba1d13bd-825c-46c6-8f74-2fc79f9a8006/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[4717,4730] [2020-12-09 15:37:50,491 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_ba1d13bd-825c-46c6-8f74-2fc79f9a8006/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[4935,4948] [2020-12-09 15:37:50,533 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_ba1d13bd-825c-46c6-8f74-2fc79f9a8006/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[15828,15841] [2020-12-09 15:37:50,535 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_ba1d13bd-825c-46c6-8f74-2fc79f9a8006/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[16046,16059] [2020-12-09 15:37:50,537 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_ba1d13bd-825c-46c6-8f74-2fc79f9a8006/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[16441,16454] [2020-12-09 15:37:50,539 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_ba1d13bd-825c-46c6-8f74-2fc79f9a8006/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[16659,16672] [2020-12-09 15:37:50,545 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 15:37:50,553 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 15:37:50,566 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_ba1d13bd-825c-46c6-8f74-2fc79f9a8006/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[919,932] [2020-12-09 15:37:50,567 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_ba1d13bd-825c-46c6-8f74-2fc79f9a8006/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[1134,1147] [2020-12-09 15:37:50,570 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_ba1d13bd-825c-46c6-8f74-2fc79f9a8006/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[2208,2221] [2020-12-09 15:37:50,571 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_ba1d13bd-825c-46c6-8f74-2fc79f9a8006/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[2423,2436] [2020-12-09 15:37:50,572 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_ba1d13bd-825c-46c6-8f74-2fc79f9a8006/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[2918,2931] [2020-12-09 15:37:50,573 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_ba1d13bd-825c-46c6-8f74-2fc79f9a8006/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[3133,3146] [2020-12-09 15:37:50,575 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_ba1d13bd-825c-46c6-8f74-2fc79f9a8006/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[3435,3448] [2020-12-09 15:37:50,576 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_ba1d13bd-825c-46c6-8f74-2fc79f9a8006/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[3653,3666] [2020-12-09 15:37:50,577 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_ba1d13bd-825c-46c6-8f74-2fc79f9a8006/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[3929,3942] [2020-12-09 15:37:50,578 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_ba1d13bd-825c-46c6-8f74-2fc79f9a8006/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[4147,4160] [2020-12-09 15:37:50,580 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_ba1d13bd-825c-46c6-8f74-2fc79f9a8006/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[4717,4730] [2020-12-09 15:37:50,581 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_ba1d13bd-825c-46c6-8f74-2fc79f9a8006/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[4935,4948] [2020-12-09 15:37:50,609 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_ba1d13bd-825c-46c6-8f74-2fc79f9a8006/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[15828,15841] [2020-12-09 15:37:50,611 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_ba1d13bd-825c-46c6-8f74-2fc79f9a8006/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[16046,16059] [2020-12-09 15:37:50,613 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_ba1d13bd-825c-46c6-8f74-2fc79f9a8006/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[16441,16454] [2020-12-09 15:37:50,615 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_ba1d13bd-825c-46c6-8f74-2fc79f9a8006/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+lhb-reducer.c[16659,16672] [2020-12-09 15:37:50,620 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 15:37:50,633 INFO L208 MainTranslator]: Completed translation [2020-12-09 15:37:50,634 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:37:50 WrapperNode [2020-12-09 15:37:50,634 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 15:37:50,635 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 15:37:50,635 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 15:37:50,635 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 15:37:50,642 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:37:50" (1/1) ... [2020-12-09 15:37:50,650 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:37:50" (1/1) ... [2020-12-09 15:37:50,678 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 15:37:50,678 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 15:37:50,678 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 15:37:50,678 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 15:37:50,684 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:37:50" (1/1) ... [2020-12-09 15:37:50,684 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:37:50" (1/1) ... [2020-12-09 15:37:50,688 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:37:50" (1/1) ... [2020-12-09 15:37:50,688 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:37:50" (1/1) ... [2020-12-09 15:37:50,695 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:37:50" (1/1) ... [2020-12-09 15:37:50,699 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:37:50" (1/1) ... [2020-12-09 15:37:50,702 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:37:50" (1/1) ... [2020-12-09 15:37:50,705 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 15:37:50,706 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 15:37:50,706 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 15:37:50,706 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 15:37:50,706 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:37:50" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ba1d13bd-825c-46c6-8f74-2fc79f9a8006/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 15:37:50,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-09 15:37:50,777 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 15:37:50,777 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 15:37:50,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 15:37:51,228 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 15:37:51,228 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-09 15:37:51,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:37:51 BoogieIcfgContainer [2020-12-09 15:37:51,230 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 15:37:51,232 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 15:37:51,232 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 15:37:51,234 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 15:37:51,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 03:37:50" (1/3) ... [2020-12-09 15:37:51,235 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@415fd660 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:37:51, skipping insertion in model container [2020-12-09 15:37:51,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:37:50" (2/3) ... [2020-12-09 15:37:51,236 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@415fd660 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:37:51, skipping insertion in model container [2020-12-09 15:37:51,236 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:37:51" (3/3) ... [2020-12-09 15:37:51,237 INFO L111 eAbstractionObserver]: Analyzing ICFG apache-get-tag.i.p+lhb-reducer.c [2020-12-09 15:37:51,250 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 15:37:51,253 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 16 error locations. [2020-12-09 15:37:51,260 INFO L253 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2020-12-09 15:37:51,278 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 15:37:51,279 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 15:37:51,279 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 15:37:51,279 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 15:37:51,279 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 15:37:51,279 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 15:37:51,279 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 15:37:51,279 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 15:37:51,294 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states. [2020-12-09 15:37:51,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-09 15:37:51,297 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 15:37:51,298 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-09 15:37:51,298 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 15:37:51,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 15:37:51,302 INFO L82 PathProgramCache]: Analyzing trace with hash 547035891, now seen corresponding path program 1 times [2020-12-09 15:37:51,308 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 15:37:51,313 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604443434] [2020-12-09 15:37:51,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 15:37:51,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 15:37:51,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 15:37:51,436 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604443434] [2020-12-09 15:37:51,437 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 15:37:51,437 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-09 15:37:51,437 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654159163] [2020-12-09 15:37:51,440 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 15:37:51,440 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 15:37:51,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 15:37:51,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-09 15:37:51,450 INFO L87 Difference]: Start difference. First operand 118 states. Second operand 4 states. [2020-12-09 15:37:51,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 15:37:51,615 INFO L93 Difference]: Finished difference Result 126 states and 200 transitions. [2020-12-09 15:37:51,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 15:37:51,616 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2020-12-09 15:37:51,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 15:37:51,624 INFO L225 Difference]: With dead ends: 126 [2020-12-09 15:37:51,624 INFO L226 Difference]: Without dead ends: 113 [2020-12-09 15:37:51,626 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 15:37:51,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2020-12-09 15:37:51,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2020-12-09 15:37:51,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2020-12-09 15:37:51,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 134 transitions. [2020-12-09 15:37:51,657 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 134 transitions. Word has length 6 [2020-12-09 15:37:51,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 15:37:51,658 INFO L481 AbstractCegarLoop]: Abstraction has 113 states and 134 transitions. [2020-12-09 15:37:51,658 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 15:37:51,658 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 134 transitions. [2020-12-09 15:37:51,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-09 15:37:51,658 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 15:37:51,658 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-09 15:37:51,658 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-09 15:37:51,659 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 15:37:51,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 15:37:51,659 INFO L82 PathProgramCache]: Analyzing trace with hash -221752512, now seen corresponding path program 1 times [2020-12-09 15:37:51,659 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 15:37:51,659 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189294907] [2020-12-09 15:37:51,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 15:37:51,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 15:37:51,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 15:37:51,729 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189294907] [2020-12-09 15:37:51,729 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 15:37:51,730 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-09 15:37:51,730 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072703274] [2020-12-09 15:37:51,731 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-09 15:37:51,731 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 15:37:51,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-09 15:37:51,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-09 15:37:51,732 INFO L87 Difference]: Start difference. First operand 113 states and 134 transitions. Second operand 5 states. [2020-12-09 15:37:51,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 15:37:51,880 INFO L93 Difference]: Finished difference Result 113 states and 134 transitions. [2020-12-09 15:37:51,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 15:37:51,881 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2020-12-09 15:37:51,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 15:37:51,882 INFO L225 Difference]: With dead ends: 113 [2020-12-09 15:37:51,882 INFO L226 Difference]: Without dead ends: 108 [2020-12-09 15:37:51,883 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-09 15:37:51,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2020-12-09 15:37:51,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2020-12-09 15:37:51,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-12-09 15:37:51,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 120 transitions. [2020-12-09 15:37:51,890 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 120 transitions. Word has length 7 [2020-12-09 15:37:51,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 15:37:51,890 INFO L481 AbstractCegarLoop]: Abstraction has 108 states and 120 transitions. [2020-12-09 15:37:51,890 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-09 15:37:51,890 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 120 transitions. [2020-12-09 15:37:51,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-09 15:37:51,891 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 15:37:51,891 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 15:37:51,891 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-09 15:37:51,891 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 15:37:51,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 15:37:51,891 INFO L82 PathProgramCache]: Analyzing trace with hash 1948841692, now seen corresponding path program 1 times [2020-12-09 15:37:51,892 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 15:37:51,892 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802692278] [2020-12-09 15:37:51,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 15:37:51,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 15:37:51,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 15:37:51,928 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802692278] [2020-12-09 15:37:51,928 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 15:37:51,928 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-09 15:37:51,929 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508870716] [2020-12-09 15:37:51,929 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-09 15:37:51,929 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 15:37:51,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-09 15:37:51,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-09 15:37:51,930 INFO L87 Difference]: Start difference. First operand 108 states and 120 transitions. Second operand 5 states. [2020-12-09 15:37:52,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 15:37:52,077 INFO L93 Difference]: Finished difference Result 108 states and 120 transitions. [2020-12-09 15:37:52,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-09 15:37:52,078 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-12-09 15:37:52,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 15:37:52,079 INFO L225 Difference]: With dead ends: 108 [2020-12-09 15:37:52,079 INFO L226 Difference]: Without dead ends: 106 [2020-12-09 15:37:52,079 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-09 15:37:52,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2020-12-09 15:37:52,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2020-12-09 15:37:52,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-12-09 15:37:52,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 118 transitions. [2020-12-09 15:37:52,085 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 118 transitions. Word has length 10 [2020-12-09 15:37:52,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 15:37:52,085 INFO L481 AbstractCegarLoop]: Abstraction has 106 states and 118 transitions. [2020-12-09 15:37:52,086 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-09 15:37:52,086 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 118 transitions. [2020-12-09 15:37:52,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-09 15:37:52,086 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 15:37:52,086 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 15:37:52,086 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-09 15:37:52,086 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 15:37:52,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 15:37:52,087 INFO L82 PathProgramCache]: Analyzing trace with hash 284554395, now seen corresponding path program 1 times [2020-12-09 15:37:52,087 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 15:37:52,087 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11536493] [2020-12-09 15:37:52,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 15:37:52,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 15:37:52,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 15:37:52,119 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11536493] [2020-12-09 15:37:52,119 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 15:37:52,119 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-09 15:37:52,119 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403485891] [2020-12-09 15:37:52,120 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 15:37:52,120 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 15:37:52,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 15:37:52,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-09 15:37:52,121 INFO L87 Difference]: Start difference. First operand 106 states and 118 transitions. Second operand 4 states. [2020-12-09 15:37:52,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 15:37:52,209 INFO L93 Difference]: Finished difference Result 106 states and 118 transitions. [2020-12-09 15:37:52,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 15:37:52,209 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-12-09 15:37:52,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 15:37:52,210 INFO L225 Difference]: With dead ends: 106 [2020-12-09 15:37:52,210 INFO L226 Difference]: Without dead ends: 102 [2020-12-09 15:37:52,210 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 15:37:52,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2020-12-09 15:37:52,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2020-12-09 15:37:52,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2020-12-09 15:37:52,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 114 transitions. [2020-12-09 15:37:52,216 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 114 transitions. Word has length 11 [2020-12-09 15:37:52,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 15:37:52,216 INFO L481 AbstractCegarLoop]: Abstraction has 102 states and 114 transitions. [2020-12-09 15:37:52,216 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 15:37:52,216 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 114 transitions. [2020-12-09 15:37:52,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-09 15:37:52,217 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 15:37:52,217 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 15:37:52,217 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-09 15:37:52,217 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 15:37:52,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 15:37:52,218 INFO L82 PathProgramCache]: Analyzing trace with hash 246397519, now seen corresponding path program 1 times [2020-12-09 15:37:52,218 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 15:37:52,218 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388439143] [2020-12-09 15:37:52,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 15:37:52,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 15:37:52,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 15:37:52,257 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388439143] [2020-12-09 15:37:52,257 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 15:37:52,257 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-09 15:37:52,257 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88268651] [2020-12-09 15:37:52,258 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-09 15:37:52,258 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 15:37:52,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-09 15:37:52,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-09 15:37:52,259 INFO L87 Difference]: Start difference. First operand 102 states and 114 transitions. Second operand 5 states. [2020-12-09 15:37:52,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 15:37:52,411 INFO L93 Difference]: Finished difference Result 120 states and 134 transitions. [2020-12-09 15:37:52,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-09 15:37:52,412 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-12-09 15:37:52,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 15:37:52,412 INFO L225 Difference]: With dead ends: 120 [2020-12-09 15:37:52,413 INFO L226 Difference]: Without dead ends: 118 [2020-12-09 15:37:52,413 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-09 15:37:52,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2020-12-09 15:37:52,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 100. [2020-12-09 15:37:52,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-12-09 15:37:52,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 112 transitions. [2020-12-09 15:37:52,420 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 112 transitions. Word has length 12 [2020-12-09 15:37:52,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 15:37:52,420 INFO L481 AbstractCegarLoop]: Abstraction has 100 states and 112 transitions. [2020-12-09 15:37:52,420 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-09 15:37:52,420 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 112 transitions. [2020-12-09 15:37:52,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-09 15:37:52,421 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 15:37:52,421 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 15:37:52,421 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-09 15:37:52,421 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 15:37:52,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 15:37:52,422 INFO L82 PathProgramCache]: Analyzing trace with hash 248121423, now seen corresponding path program 1 times [2020-12-09 15:37:52,422 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 15:37:52,422 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112381857] [2020-12-09 15:37:52,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 15:37:52,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 15:37:52,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 15:37:52,462 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112381857] [2020-12-09 15:37:52,462 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 15:37:52,462 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-09 15:37:52,462 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281493897] [2020-12-09 15:37:52,462 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-09 15:37:52,462 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 15:37:52,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-09 15:37:52,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-09 15:37:52,463 INFO L87 Difference]: Start difference. First operand 100 states and 112 transitions. Second operand 5 states. [2020-12-09 15:37:52,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 15:37:52,594 INFO L93 Difference]: Finished difference Result 100 states and 112 transitions. [2020-12-09 15:37:52,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-09 15:37:52,594 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-12-09 15:37:52,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 15:37:52,595 INFO L225 Difference]: With dead ends: 100 [2020-12-09 15:37:52,595 INFO L226 Difference]: Without dead ends: 98 [2020-12-09 15:37:52,595 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-09 15:37:52,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-12-09 15:37:52,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2020-12-09 15:37:52,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-12-09 15:37:52,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 110 transitions. [2020-12-09 15:37:52,599 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 110 transitions. Word has length 12 [2020-12-09 15:37:52,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 15:37:52,599 INFO L481 AbstractCegarLoop]: Abstraction has 98 states and 110 transitions. [2020-12-09 15:37:52,599 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-09 15:37:52,600 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 110 transitions. [2020-12-09 15:37:52,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-09 15:37:52,600 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 15:37:52,600 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 15:37:52,600 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-09 15:37:52,600 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 15:37:52,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 15:37:52,601 INFO L82 PathProgramCache]: Analyzing trace with hash -951607394, now seen corresponding path program 1 times [2020-12-09 15:37:52,601 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 15:37:52,601 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808674554] [2020-12-09 15:37:52,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 15:37:52,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 15:37:52,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 15:37:52,676 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808674554] [2020-12-09 15:37:52,676 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 15:37:52,676 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-09 15:37:52,676 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467333753] [2020-12-09 15:37:52,677 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-09 15:37:52,677 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 15:37:52,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-09 15:37:52,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-09 15:37:52,677 INFO L87 Difference]: Start difference. First operand 98 states and 110 transitions. Second operand 6 states. [2020-12-09 15:37:52,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 15:37:52,810 INFO L93 Difference]: Finished difference Result 135 states and 151 transitions. [2020-12-09 15:37:52,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-09 15:37:52,811 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2020-12-09 15:37:52,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 15:37:52,811 INFO L225 Difference]: With dead ends: 135 [2020-12-09 15:37:52,811 INFO L226 Difference]: Without dead ends: 133 [2020-12-09 15:37:52,812 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-12-09 15:37:52,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2020-12-09 15:37:52,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 104. [2020-12-09 15:37:52,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-12-09 15:37:52,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 118 transitions. [2020-12-09 15:37:52,816 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 118 transitions. Word has length 13 [2020-12-09 15:37:52,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 15:37:52,816 INFO L481 AbstractCegarLoop]: Abstraction has 104 states and 118 transitions. [2020-12-09 15:37:52,816 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-09 15:37:52,816 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 118 transitions. [2020-12-09 15:37:52,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-09 15:37:52,817 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 15:37:52,817 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 15:37:52,817 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-09 15:37:52,817 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 15:37:52,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 15:37:52,818 INFO L82 PathProgramCache]: Analyzing trace with hash -950060249, now seen corresponding path program 1 times [2020-12-09 15:37:52,818 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 15:37:52,818 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709090849] [2020-12-09 15:37:52,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 15:37:52,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 15:37:52,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 15:37:52,846 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709090849] [2020-12-09 15:37:52,846 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 15:37:52,846 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-09 15:37:52,846 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422793856] [2020-12-09 15:37:52,846 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-09 15:37:52,846 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 15:37:52,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-09 15:37:52,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-09 15:37:52,847 INFO L87 Difference]: Start difference. First operand 104 states and 118 transitions. Second operand 5 states. [2020-12-09 15:37:53,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 15:37:53,004 INFO L93 Difference]: Finished difference Result 125 states and 141 transitions. [2020-12-09 15:37:53,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-09 15:37:53,005 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-12-09 15:37:53,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 15:37:53,006 INFO L225 Difference]: With dead ends: 125 [2020-12-09 15:37:53,006 INFO L226 Difference]: Without dead ends: 123 [2020-12-09 15:37:53,006 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-09 15:37:53,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2020-12-09 15:37:53,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 102. [2020-12-09 15:37:53,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2020-12-09 15:37:53,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 116 transitions. [2020-12-09 15:37:53,011 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 116 transitions. Word has length 13 [2020-12-09 15:37:53,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 15:37:53,011 INFO L481 AbstractCegarLoop]: Abstraction has 102 states and 116 transitions. [2020-12-09 15:37:53,011 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-09 15:37:53,011 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 116 transitions. [2020-12-09 15:37:53,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-09 15:37:53,012 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 15:37:53,012 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 15:37:53,012 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-09 15:37:53,012 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 15:37:53,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 15:37:53,013 INFO L82 PathProgramCache]: Analyzing trace with hash -898166314, now seen corresponding path program 1 times [2020-12-09 15:37:53,013 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 15:37:53,013 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616825371] [2020-12-09 15:37:53,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 15:37:53,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 15:37:53,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 15:37:53,086 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616825371] [2020-12-09 15:37:53,087 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 15:37:53,087 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-09 15:37:53,087 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364804732] [2020-12-09 15:37:53,087 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-09 15:37:53,087 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 15:37:53,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-09 15:37:53,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-09 15:37:53,088 INFO L87 Difference]: Start difference. First operand 102 states and 116 transitions. Second operand 6 states. [2020-12-09 15:37:53,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 15:37:53,213 INFO L93 Difference]: Finished difference Result 112 states and 126 transitions. [2020-12-09 15:37:53,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-09 15:37:53,214 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2020-12-09 15:37:53,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 15:37:53,215 INFO L225 Difference]: With dead ends: 112 [2020-12-09 15:37:53,215 INFO L226 Difference]: Without dead ends: 108 [2020-12-09 15:37:53,215 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-12-09 15:37:53,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2020-12-09 15:37:53,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 103. [2020-12-09 15:37:53,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2020-12-09 15:37:53,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 117 transitions. [2020-12-09 15:37:53,218 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 117 transitions. Word has length 13 [2020-12-09 15:37:53,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 15:37:53,218 INFO L481 AbstractCegarLoop]: Abstraction has 103 states and 117 transitions. [2020-12-09 15:37:53,218 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-09 15:37:53,218 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 117 transitions. [2020-12-09 15:37:53,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-09 15:37:53,219 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 15:37:53,219 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 15:37:53,219 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-09 15:37:53,219 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 15:37:53,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 15:37:53,219 INFO L82 PathProgramCache]: Analyzing trace with hash 612907497, now seen corresponding path program 1 times [2020-12-09 15:37:53,220 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 15:37:53,220 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540968451] [2020-12-09 15:37:53,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 15:37:53,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 15:37:53,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 15:37:53,294 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540968451] [2020-12-09 15:37:53,294 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 15:37:53,294 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-09 15:37:53,295 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882990681] [2020-12-09 15:37:53,295 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-09 15:37:53,295 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 15:37:53,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-09 15:37:53,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-09 15:37:53,296 INFO L87 Difference]: Start difference. First operand 103 states and 117 transitions. Second operand 6 states. [2020-12-09 15:37:53,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 15:37:53,448 INFO L93 Difference]: Finished difference Result 130 states and 146 transitions. [2020-12-09 15:37:53,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-09 15:37:53,449 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-12-09 15:37:53,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 15:37:53,450 INFO L225 Difference]: With dead ends: 130 [2020-12-09 15:37:53,450 INFO L226 Difference]: Without dead ends: 128 [2020-12-09 15:37:53,450 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-12-09 15:37:53,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2020-12-09 15:37:53,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 106. [2020-12-09 15:37:53,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-12-09 15:37:53,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 120 transitions. [2020-12-09 15:37:53,455 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 120 transitions. Word has length 14 [2020-12-09 15:37:53,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 15:37:53,455 INFO L481 AbstractCegarLoop]: Abstraction has 106 states and 120 transitions. [2020-12-09 15:37:53,455 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-09 15:37:53,455 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 120 transitions. [2020-12-09 15:37:53,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-09 15:37:53,456 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 15:37:53,456 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 15:37:53,456 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-09 15:37:53,457 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 15:37:53,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 15:37:53,457 INFO L82 PathProgramCache]: Analyzing trace with hash 333456161, now seen corresponding path program 1 times [2020-12-09 15:37:53,457 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 15:37:53,457 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838896257] [2020-12-09 15:37:53,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 15:37:53,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 15:37:53,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 15:37:53,490 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838896257] [2020-12-09 15:37:53,490 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 15:37:53,490 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-09 15:37:53,490 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956381915] [2020-12-09 15:37:53,491 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 15:37:53,491 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 15:37:53,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 15:37:53,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-09 15:37:53,491 INFO L87 Difference]: Start difference. First operand 106 states and 120 transitions. Second operand 4 states. [2020-12-09 15:37:53,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 15:37:53,548 INFO L93 Difference]: Finished difference Result 106 states and 120 transitions. [2020-12-09 15:37:53,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 15:37:53,548 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-12-09 15:37:53,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 15:37:53,549 INFO L225 Difference]: With dead ends: 106 [2020-12-09 15:37:53,549 INFO L226 Difference]: Without dead ends: 104 [2020-12-09 15:37:53,550 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 15:37:53,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2020-12-09 15:37:53,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2020-12-09 15:37:53,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-12-09 15:37:53,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 118 transitions. [2020-12-09 15:37:53,554 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 118 transitions. Word has length 15 [2020-12-09 15:37:53,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 15:37:53,554 INFO L481 AbstractCegarLoop]: Abstraction has 104 states and 118 transitions. [2020-12-09 15:37:53,554 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 15:37:53,554 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 118 transitions. [2020-12-09 15:37:53,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-09 15:37:53,555 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 15:37:53,555 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 15:37:53,555 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-09 15:37:53,555 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 15:37:53,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 15:37:53,556 INFO L82 PathProgramCache]: Analyzing trace with hash 1747210525, now seen corresponding path program 1 times [2020-12-09 15:37:53,556 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 15:37:53,556 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059742154] [2020-12-09 15:37:53,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 15:37:53,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 15:37:53,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 15:37:53,582 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059742154] [2020-12-09 15:37:53,582 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 15:37:53,582 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-09 15:37:53,582 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660137219] [2020-12-09 15:37:53,583 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 15:37:53,583 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 15:37:53,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 15:37:53,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-09 15:37:53,583 INFO L87 Difference]: Start difference. First operand 104 states and 118 transitions. Second operand 4 states. [2020-12-09 15:37:53,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 15:37:53,667 INFO L93 Difference]: Finished difference Result 104 states and 118 transitions. [2020-12-09 15:37:53,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 15:37:53,668 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-12-09 15:37:53,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 15:37:53,668 INFO L225 Difference]: With dead ends: 104 [2020-12-09 15:37:53,668 INFO L226 Difference]: Without dead ends: 100 [2020-12-09 15:37:53,669 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 15:37:53,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2020-12-09 15:37:53,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2020-12-09 15:37:53,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-12-09 15:37:53,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 114 transitions. [2020-12-09 15:37:53,671 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 114 transitions. Word has length 16 [2020-12-09 15:37:53,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 15:37:53,672 INFO L481 AbstractCegarLoop]: Abstraction has 100 states and 114 transitions. [2020-12-09 15:37:53,672 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 15:37:53,672 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 114 transitions. [2020-12-09 15:37:53,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-09 15:37:53,672 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 15:37:53,672 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 15:37:53,672 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-09 15:37:53,672 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 15:37:53,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 15:37:53,673 INFO L82 PathProgramCache]: Analyzing trace with hash -1396602585, now seen corresponding path program 1 times [2020-12-09 15:37:53,673 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 15:37:53,673 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041414994] [2020-12-09 15:37:53,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 15:37:53,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 15:37:53,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 15:37:53,711 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041414994] [2020-12-09 15:37:53,711 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 15:37:53,711 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-09 15:37:53,711 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509631863] [2020-12-09 15:37:53,711 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-09 15:37:53,711 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 15:37:53,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-09 15:37:53,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-09 15:37:53,712 INFO L87 Difference]: Start difference. First operand 100 states and 114 transitions. Second operand 6 states. [2020-12-09 15:37:53,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 15:37:53,858 INFO L93 Difference]: Finished difference Result 115 states and 131 transitions. [2020-12-09 15:37:53,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-09 15:37:53,859 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-12-09 15:37:53,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 15:37:53,860 INFO L225 Difference]: With dead ends: 115 [2020-12-09 15:37:53,860 INFO L226 Difference]: Without dead ends: 113 [2020-12-09 15:37:53,860 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-09 15:37:53,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2020-12-09 15:37:53,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 96. [2020-12-09 15:37:53,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-12-09 15:37:53,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 110 transitions. [2020-12-09 15:37:53,864 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 110 transitions. Word has length 17 [2020-12-09 15:37:53,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 15:37:53,865 INFO L481 AbstractCegarLoop]: Abstraction has 96 states and 110 transitions. [2020-12-09 15:37:53,865 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-09 15:37:53,865 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 110 transitions. [2020-12-09 15:37:53,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-09 15:37:53,865 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 15:37:53,865 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 15:37:53,865 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-09 15:37:53,866 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 15:37:53,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 15:37:53,866 INFO L82 PathProgramCache]: Analyzing trace with hash -1343161505, now seen corresponding path program 1 times [2020-12-09 15:37:53,866 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 15:37:53,866 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043284216] [2020-12-09 15:37:53,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 15:37:53,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 15:37:53,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 15:37:53,913 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043284216] [2020-12-09 15:37:53,914 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 15:37:53,914 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-09 15:37:53,914 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645169644] [2020-12-09 15:37:53,914 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-09 15:37:53,914 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 15:37:53,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-09 15:37:53,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-09 15:37:53,915 INFO L87 Difference]: Start difference. First operand 96 states and 110 transitions. Second operand 6 states. [2020-12-09 15:37:54,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 15:37:54,050 INFO L93 Difference]: Finished difference Result 96 states and 110 transitions. [2020-12-09 15:37:54,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-09 15:37:54,050 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-12-09 15:37:54,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 15:37:54,051 INFO L225 Difference]: With dead ends: 96 [2020-12-09 15:37:54,051 INFO L226 Difference]: Without dead ends: 92 [2020-12-09 15:37:54,051 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-09 15:37:54,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2020-12-09 15:37:54,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2020-12-09 15:37:54,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2020-12-09 15:37:54,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 106 transitions. [2020-12-09 15:37:54,055 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 106 transitions. Word has length 17 [2020-12-09 15:37:54,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 15:37:54,056 INFO L481 AbstractCegarLoop]: Abstraction has 92 states and 106 transitions. [2020-12-09 15:37:54,056 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-09 15:37:54,056 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 106 transitions. [2020-12-09 15:37:54,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-09 15:37:54,056 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 15:37:54,056 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 15:37:54,057 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-09 15:37:54,057 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 15:37:54,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 15:37:54,057 INFO L82 PathProgramCache]: Analyzing trace with hash -1655929480, now seen corresponding path program 1 times [2020-12-09 15:37:54,057 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 15:37:54,058 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391716255] [2020-12-09 15:37:54,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 15:37:54,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 15:37:54,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 15:37:54,100 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391716255] [2020-12-09 15:37:54,101 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 15:37:54,101 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-09 15:37:54,101 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521728739] [2020-12-09 15:37:54,101 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-09 15:37:54,101 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 15:37:54,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-09 15:37:54,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-09 15:37:54,102 INFO L87 Difference]: Start difference. First operand 92 states and 106 transitions. Second operand 6 states. [2020-12-09 15:37:54,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 15:37:54,259 INFO L93 Difference]: Finished difference Result 102 states and 118 transitions. [2020-12-09 15:37:54,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-09 15:37:54,260 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-12-09 15:37:54,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 15:37:54,260 INFO L225 Difference]: With dead ends: 102 [2020-12-09 15:37:54,260 INFO L226 Difference]: Without dead ends: 53 [2020-12-09 15:37:54,261 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 [2020-12-09 15:37:54,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-12-09 15:37:54,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2020-12-09 15:37:54,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-12-09 15:37:54,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 53 transitions. [2020-12-09 15:37:54,262 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 53 transitions. Word has length 17 [2020-12-09 15:37:54,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 15:37:54,262 INFO L481 AbstractCegarLoop]: Abstraction has 53 states and 53 transitions. [2020-12-09 15:37:54,262 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-09 15:37:54,262 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 53 transitions. [2020-12-09 15:37:54,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-12-09 15:37:54,263 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 15:37:54,263 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] [2020-12-09 15:37:54,263 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-09 15:37:54,264 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 15:37:54,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 15:37:54,264 INFO L82 PathProgramCache]: Analyzing trace with hash -789661849, now seen corresponding path program 1 times [2020-12-09 15:37:54,264 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 15:37:54,264 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273038272] [2020-12-09 15:37:54,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 15:37:54,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 15:37:54,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 15:37:54,358 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273038272] [2020-12-09 15:37:54,359 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 15:37:54,359 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-12-09 15:37:54,359 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144874586] [2020-12-09 15:37:54,359 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-12-09 15:37:54,359 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 15:37:54,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-12-09 15:37:54,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2020-12-09 15:37:54,360 INFO L87 Difference]: Start difference. First operand 53 states and 53 transitions. Second operand 13 states. [2020-12-09 15:37:54,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 15:37:54,451 INFO L93 Difference]: Finished difference Result 53 states and 53 transitions. [2020-12-09 15:37:54,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-09 15:37:54,451 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 43 [2020-12-09 15:37:54,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 15:37:54,451 INFO L225 Difference]: With dead ends: 53 [2020-12-09 15:37:54,451 INFO L226 Difference]: Without dead ends: 51 [2020-12-09 15:37:54,452 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 [2020-12-09 15:37:54,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-12-09 15:37:54,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2020-12-09 15:37:54,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-12-09 15:37:54,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 51 transitions. [2020-12-09 15:37:54,453 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 51 transitions. Word has length 43 [2020-12-09 15:37:54,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 15:37:54,453 INFO L481 AbstractCegarLoop]: Abstraction has 51 states and 51 transitions. [2020-12-09 15:37:54,453 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-12-09 15:37:54,453 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 51 transitions. [2020-12-09 15:37:54,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-12-09 15:37:54,454 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 15:37:54,454 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] [2020-12-09 15:37:54,454 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-12-09 15:37:54,454 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 15:37:54,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 15:37:54,455 INFO L82 PathProgramCache]: Analyzing trace with hash -789645961, now seen corresponding path program 1 times [2020-12-09 15:37:54,455 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 15:37:54,455 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909509765] [2020-12-09 15:37:54,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 15:37:54,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 15:37:54,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 15:37:54,535 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909509765] [2020-12-09 15:37:54,535 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 15:37:54,535 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-12-09 15:37:54,535 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716749145] [2020-12-09 15:37:54,535 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-12-09 15:37:54,535 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 15:37:54,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-12-09 15:37:54,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2020-12-09 15:37:54,536 INFO L87 Difference]: Start difference. First operand 51 states and 51 transitions. Second operand 13 states. [2020-12-09 15:37:54,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 15:37:54,621 INFO L93 Difference]: Finished difference Result 58 states and 58 transitions. [2020-12-09 15:37:54,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-09 15:37:54,621 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 43 [2020-12-09 15:37:54,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 15:37:54,621 INFO L225 Difference]: With dead ends: 58 [2020-12-09 15:37:54,621 INFO L226 Difference]: Without dead ends: 56 [2020-12-09 15:37:54,622 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 [2020-12-09 15:37:54,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-12-09 15:37:54,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 49. [2020-12-09 15:37:54,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-12-09 15:37:54,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 49 transitions. [2020-12-09 15:37:54,623 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 49 transitions. Word has length 43 [2020-12-09 15:37:54,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 15:37:54,624 INFO L481 AbstractCegarLoop]: Abstraction has 49 states and 49 transitions. [2020-12-09 15:37:54,624 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-12-09 15:37:54,624 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 49 transitions. [2020-12-09 15:37:54,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-12-09 15:37:54,624 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 15:37:54,624 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] [2020-12-09 15:37:54,625 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-12-09 15:37:54,625 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 15:37:54,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 15:37:54,625 INFO L82 PathProgramCache]: Analyzing trace with hash 1290290900, now seen corresponding path program 1 times [2020-12-09 15:37:54,625 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 15:37:54,625 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466418938] [2020-12-09 15:37:54,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 15:37:54,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 15:37:54,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 15:37:54,723 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466418938] [2020-12-09 15:37:54,723 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 15:37:54,723 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-09 15:37:54,724 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601333831] [2020-12-09 15:37:54,724 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-09 15:37:54,724 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 15:37:54,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-09 15:37:54,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-12-09 15:37:54,725 INFO L87 Difference]: Start difference. First operand 49 states and 49 transitions. Second operand 7 states. [2020-12-09 15:37:54,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 15:37:54,796 INFO L93 Difference]: Finished difference Result 49 states and 49 transitions. [2020-12-09 15:37:54,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-09 15:37:54,797 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 44 [2020-12-09 15:37:54,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 15:37:54,797 INFO L225 Difference]: With dead ends: 49 [2020-12-09 15:37:54,797 INFO L226 Difference]: Without dead ends: 45 [2020-12-09 15:37:54,798 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 [2020-12-09 15:37:54,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-12-09 15:37:54,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-12-09 15:37:54,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-12-09 15:37:54,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 45 transitions. [2020-12-09 15:37:54,799 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 45 transitions. Word has length 44 [2020-12-09 15:37:54,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 15:37:54,800 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 45 transitions. [2020-12-09 15:37:54,800 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-09 15:37:54,800 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 45 transitions. [2020-12-09 15:37:54,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-12-09 15:37:54,800 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 15:37:54,800 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] [2020-12-09 15:37:54,800 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-12-09 15:37:54,801 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 15:37:54,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 15:37:54,801 INFO L82 PathProgramCache]: Analyzing trace with hash 1290783444, now seen corresponding path program 1 times [2020-12-09 15:37:54,801 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 15:37:54,801 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123552306] [2020-12-09 15:37:54,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 15:37:54,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 15:37:54,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 15:37:54,905 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123552306] [2020-12-09 15:37:54,905 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 15:37:54,905 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-09 15:37:54,905 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768483759] [2020-12-09 15:37:54,906 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-09 15:37:54,906 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 15:37:54,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-09 15:37:54,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-12-09 15:37:54,906 INFO L87 Difference]: Start difference. First operand 45 states and 45 transitions. Second operand 7 states. [2020-12-09 15:37:54,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 15:37:54,980 INFO L93 Difference]: Finished difference Result 49 states and 49 transitions. [2020-12-09 15:37:54,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-09 15:37:54,981 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 44 [2020-12-09 15:37:54,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 15:37:54,981 INFO L225 Difference]: With dead ends: 49 [2020-12-09 15:37:54,981 INFO L226 Difference]: Without dead ends: 0 [2020-12-09 15:37:54,981 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 [2020-12-09 15:37:54,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-09 15:37:54,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-09 15:37:54,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-09 15:37:54,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-09 15:37:54,982 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 44 [2020-12-09 15:37:54,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 15:37:54,982 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-09 15:37:54,982 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-09 15:37:54,982 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-09 15:37:54,982 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-09 15:37:54,982 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-12-09 15:37:54,983 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-09 15:37:55,074 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 48) no Hoare annotation was computed. [2020-12-09 15:37:55,074 INFO L262 CegarLoopResult]: For program point L217(lines 217 229) no Hoare annotation was computed. [2020-12-09 15:37:55,075 INFO L262 CegarLoopResult]: For program point L597(lines 597 969) no Hoare annotation was computed. [2020-12-09 15:37:55,075 INFO L262 CegarLoopResult]: For program point L366(lines 366 991) no Hoare annotation was computed. [2020-12-09 15:37:55,075 INFO L262 CegarLoopResult]: For program point L267(lines 267 275) no Hoare annotation was computed. [2020-12-09 15:37:55,075 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION(line 883) no Hoare annotation was computed. [2020-12-09 15:37:55,075 INFO L262 CegarLoopResult]: For program point L581(lines 581 971) no Hoare annotation was computed. [2020-12-09 15:37:55,075 INFO L262 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-12-09 15:37:55,075 INFO L262 CegarLoopResult]: For program point L895(line 895) no Hoare annotation was computed. [2020-12-09 15:37:55,075 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-09 15:37:55,075 INFO L262 CegarLoopResult]: For program point L317(lines 317 994) no Hoare annotation was computed. [2020-12-09 15:37:55,075 INFO L262 CegarLoopResult]: For program point L185(line 185) no Hoare annotation was computed. [2020-12-09 15:37:55,075 INFO L262 CegarLoopResult]: For program point L400(lines 400 424) no Hoare annotation was computed. [2020-12-09 15:37:55,075 INFO L262 CegarLoopResult]: For program point L136(lines 136 242) no Hoare annotation was computed. [2020-12-09 15:37:55,075 INFO L262 CegarLoopResult]: For program point L103(lines 103 125) no Hoare annotation was computed. [2020-12-09 15:37:55,075 INFO L262 CegarLoopResult]: For program point L615(lines 615 626) no Hoare annotation was computed. [2020-12-09 15:37:55,075 INFO L262 CegarLoopResult]: For program point L929(lines 929 941) no Hoare annotation was computed. [2020-12-09 15:37:55,075 INFO L262 CegarLoopResult]: For program point L219(line 219) no Hoare annotation was computed. [2020-12-09 15:37:55,075 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION(line 269) no Hoare annotation was computed. [2020-12-09 15:37:55,075 INFO L262 CegarLoopResult]: For program point L665(lines 665 963) no Hoare annotation was computed. [2020-12-09 15:37:55,076 INFO L262 CegarLoopResult]: For program point L434(lines 434 985) no Hoare annotation was computed. [2020-12-09 15:37:55,076 INFO L262 CegarLoopResult]: For program point L269(line 269) no Hoare annotation was computed. [2020-12-09 15:37:55,076 INFO L262 CegarLoopResult]: For program point L649(lines 649 965) no Hoare annotation was computed. [2020-12-09 15:37:55,076 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 173) no Hoare annotation was computed. [2020-12-09 15:37:55,076 INFO L262 CegarLoopResult]: For program point L385(lines 385 988) no Hoare annotation was computed. [2020-12-09 15:37:55,076 INFO L262 CegarLoopResult]: For program point L22(lines 22 1005) no Hoare annotation was computed. [2020-12-09 15:37:55,076 INFO L262 CegarLoopResult]: For program point L468(lines 468 492) no Hoare annotation was computed. [2020-12-09 15:37:55,076 INFO L262 CegarLoopResult]: For program point L881(lines 881 907) no Hoare annotation was computed. [2020-12-09 15:37:55,076 INFO L262 CegarLoopResult]: For program point L171(lines 171 193) no Hoare annotation was computed. [2020-12-09 15:37:55,076 INFO L262 CegarLoopResult]: For program point L683(lines 683 694) no Hoare annotation was computed. [2020-12-09 15:37:55,076 INFO L262 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2020-12-09 15:37:55,076 INFO L262 CegarLoopResult]: For program point L72(lines 72 288) no Hoare annotation was computed. [2020-12-09 15:37:55,076 INFO L262 CegarLoopResult]: For program point L931(line 931) no Hoare annotation was computed. [2020-12-09 15:37:55,076 INFO L262 CegarLoopResult]: For program point L733(lines 733 957) no Hoare annotation was computed. [2020-12-09 15:37:55,077 INFO L262 CegarLoopResult]: For program point L155(lines 155 234) no Hoare annotation was computed. [2020-12-09 15:37:55,077 INFO L262 CegarLoopResult]: For program point L502(lines 502 979) no Hoare annotation was computed. [2020-12-09 15:37:55,077 INFO L262 CegarLoopResult]: For program point L205(lines 205 231) no Hoare annotation was computed. [2020-12-09 15:37:55,077 INFO L262 CegarLoopResult]: For program point L717(lines 717 959) no Hoare annotation was computed. [2020-12-09 15:37:55,077 INFO L262 CegarLoopResult]: For program point L453(lines 453 982) no Hoare annotation was computed. [2020-12-09 15:37:55,077 INFO L265 CegarLoopResult]: At program point L932(lines 17 1006) the Hoare annotation is: true [2020-12-09 15:37:55,077 INFO L262 CegarLoopResult]: For program point L866(lines 866 946) no Hoare annotation was computed. [2020-12-09 15:37:55,077 INFO L262 CegarLoopResult]: For program point L255(lines 255 277) no Hoare annotation was computed. [2020-12-09 15:37:55,077 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION(line 207) no Hoare annotation was computed. [2020-12-09 15:37:55,077 INFO L262 CegarLoopResult]: For program point L536(lines 536 560) no Hoare annotation was computed. [2020-12-09 15:37:55,078 INFO L262 CegarLoopResult]: For program point L883(line 883) no Hoare annotation was computed. [2020-12-09 15:37:55,078 INFO L262 CegarLoopResult]: For program point L751(lines 751 762) no Hoare annotation was computed. [2020-12-09 15:37:55,078 INFO L262 CegarLoopResult]: For program point L173(line 173) no Hoare annotation was computed. [2020-12-09 15:37:55,078 INFO L262 CegarLoopResult]: For program point L801(lines 801 951) no Hoare annotation was computed. [2020-12-09 15:37:55,078 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-09 15:37:55,078 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 185) no Hoare annotation was computed. [2020-12-09 15:37:55,078 INFO L262 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-12-09 15:37:55,078 INFO L262 CegarLoopResult]: For program point L570(lines 570 973) no Hoare annotation was computed. [2020-12-09 15:37:55,078 INFO L262 CegarLoopResult]: For program point L917(lines 917 943) no Hoare annotation was computed. [2020-12-09 15:37:55,078 INFO L262 CegarLoopResult]: For program point L785(lines 785 953) no Hoare annotation was computed. [2020-12-09 15:37:55,078 INFO L262 CegarLoopResult]: For program point L207(line 207) no Hoare annotation was computed. [2020-12-09 15:37:55,078 INFO L262 CegarLoopResult]: For program point L521(lines 521 976) no Hoare annotation was computed. [2020-12-09 15:37:55,079 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)) [2020-12-09 15:37:55,079 INFO L262 CegarLoopResult]: For program point L257(line 257) no Hoare annotation was computed. [2020-12-09 15:37:55,079 INFO L262 CegarLoopResult]: For program point L604(lines 604 628) no Hoare annotation was computed. [2020-12-09 15:37:55,079 INFO L262 CegarLoopResult]: For program point L26(lines 26 1000) no Hoare annotation was computed. [2020-12-09 15:37:55,079 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 105) no Hoare annotation was computed. [2020-12-09 15:37:55,079 INFO L262 CegarLoopResult]: For program point L819(lines 819 830) no Hoare annotation was computed. [2020-12-09 15:37:55,079 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION(line 895) no Hoare annotation was computed. [2020-12-09 15:37:55,079 INFO L262 CegarLoopResult]: For program point L638(lines 638 967) no Hoare annotation was computed. [2020-12-09 15:37:55,079 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION(line 219) no Hoare annotation was computed. [2020-12-09 15:37:55,079 INFO L262 CegarLoopResult]: For program point L919(line 919) no Hoare annotation was computed. [2020-12-09 15:37:55,079 INFO L262 CegarLoopResult]: For program point L853(lines 853 947) no Hoare annotation was computed. [2020-12-09 15:37:55,079 INFO L262 CegarLoopResult]: For program point L143(lines 143 236) no Hoare annotation was computed. [2020-12-09 15:37:55,080 INFO L262 CegarLoopResult]: For program point L589(lines 589 970) no Hoare annotation was computed. [2020-12-09 15:37:55,080 INFO L262 CegarLoopResult]: For program point L325(lines 325 993) no Hoare annotation was computed. [2020-12-09 15:37:55,080 INFO L262 CegarLoopResult]: For program point L672(lines 672 696) no Hoare annotation was computed. [2020-12-09 15:37:55,080 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 145) no Hoare annotation was computed. [2020-12-09 15:37:55,080 INFO L262 CegarLoopResult]: For program point L309(lines 309 995) no Hoare annotation was computed. [2020-12-09 15:37:55,080 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION(line 931) no Hoare annotation was computed. [2020-12-09 15:37:55,080 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)) [2020-12-09 15:37:55,080 INFO L262 CegarLoopResult]: For program point L706(lines 706 961) no Hoare annotation was computed. [2020-12-09 15:37:55,080 INFO L262 CegarLoopResult]: For program point L343(lines 343 354) no Hoare annotation was computed. [2020-12-09 15:37:55,080 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 117) no Hoare annotation was computed. [2020-12-09 15:37:55,080 INFO L262 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-12-09 15:37:55,081 INFO L262 CegarLoopResult]: For program point L657(lines 657 964) no Hoare annotation was computed. [2020-12-09 15:37:55,081 INFO L262 CegarLoopResult]: For program point L46(lines 46 56) no Hoare annotation was computed. [2020-12-09 15:37:55,081 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION(line 919) no Hoare annotation was computed. [2020-12-09 15:37:55,081 INFO L265 CegarLoopResult]: At program point L1004(lines 22 1005) the Hoare annotation is: true [2020-12-09 15:37:55,081 INFO L262 CegarLoopResult]: For program point L393(lines 393 987) no Hoare annotation was computed. [2020-12-09 15:37:55,081 INFO L262 CegarLoopResult]: For program point L740(lines 740 764) no Hoare annotation was computed. [2020-12-09 15:37:55,081 INFO L262 CegarLoopResult]: For program point L96(lines 96 285) no Hoare annotation was computed. [2020-12-09 15:37:55,081 INFO L262 CegarLoopResult]: For program point L377(lines 377 989) no Hoare annotation was computed. [2020-12-09 15:37:55,081 INFO L262 CegarLoopResult]: For program point L774(lines 774 955) no Hoare annotation was computed. [2020-12-09 15:37:55,081 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 157) no Hoare annotation was computed. [2020-12-09 15:37:55,081 INFO L262 CegarLoopResult]: For program point L411(lines 411 422) no Hoare annotation was computed. [2020-12-09 15:37:55,081 INFO L262 CegarLoopResult]: For program point L725(lines 725 958) no Hoare annotation was computed. [2020-12-09 15:37:55,081 INFO L262 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-12-09 15:37:55,082 INFO L262 CegarLoopResult]: For program point L461(lines 461 981) no Hoare annotation was computed. [2020-12-09 15:37:55,082 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)) [2020-12-09 15:37:55,082 INFO L262 CegarLoopResult]: For program point L874(lines 874 945) no Hoare annotation was computed. [2020-12-09 15:37:55,082 INFO L262 CegarLoopResult]: For program point L808(lines 808 832) no Hoare annotation was computed. [2020-12-09 15:37:55,082 INFO L262 CegarLoopResult]: For program point L164(lines 164 233) no Hoare annotation was computed. [2020-12-09 15:37:55,082 INFO L262 CegarLoopResult]: For program point L65(lines 65 999) no Hoare annotation was computed. [2020-12-09 15:37:55,082 INFO L262 CegarLoopResult]: For program point L445(lines 445 983) no Hoare annotation was computed. [2020-12-09 15:37:55,082 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 36) no Hoare annotation was computed. [2020-12-09 15:37:55,082 INFO L262 CegarLoopResult]: For program point L115(lines 115 123) no Hoare annotation was computed. [2020-12-09 15:37:55,082 INFO L262 CegarLoopResult]: For program point L842(lines 842 949) no Hoare annotation was computed. [2020-12-09 15:37:55,082 INFO L262 CegarLoopResult]: For program point L132(lines 132 284) no Hoare annotation was computed. [2020-12-09 15:37:55,082 INFO L262 CegarLoopResult]: For program point L479(lines 479 490) no Hoare annotation was computed. [2020-12-09 15:37:55,083 INFO L262 CegarLoopResult]: For program point L793(lines 793 952) no Hoare annotation was computed. [2020-12-09 15:37:55,083 INFO L262 CegarLoopResult]: For program point L248(lines 248 283) no Hoare annotation was computed. [2020-12-09 15:37:55,083 INFO L262 CegarLoopResult]: For program point L83(lines 83 286) no Hoare annotation was computed. [2020-12-09 15:37:55,083 INFO L262 CegarLoopResult]: For program point L529(lines 529 975) no Hoare annotation was computed. [2020-12-09 15:37:55,083 INFO L262 CegarLoopResult]: For program point L298(lines 298 997) no Hoare annotation was computed. [2020-12-09 15:37:55,083 INFO L262 CegarLoopResult]: For program point L34(lines 34 58) no Hoare annotation was computed. [2020-12-09 15:37:55,083 INFO L262 CegarLoopResult]: For program point L513(lines 513 977) no Hoare annotation was computed. [2020-12-09 15:37:55,083 INFO L262 CegarLoopResult]: For program point L893(lines 893 905) no Hoare annotation was computed. [2020-12-09 15:37:55,083 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION(line 257) no Hoare annotation was computed. [2020-12-09 15:37:55,083 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)) [2020-12-09 15:37:55,083 INFO L262 CegarLoopResult]: For program point L183(lines 183 191) no Hoare annotation was computed. [2020-12-09 15:37:55,083 INFO L262 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-12-09 15:37:55,083 INFO L262 CegarLoopResult]: For program point L332(lines 332 356) no Hoare annotation was computed. [2020-12-09 15:37:55,084 INFO L262 CegarLoopResult]: For program point L547(lines 547 558) no Hoare annotation was computed. [2020-12-09 15:37:55,099 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 03:37:55 BoogieIcfgContainer [2020-12-09 15:37:55,099 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 15:37:55,100 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 15:37:55,100 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 15:37:55,100 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 15:37:55,100 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:37:51" (3/4) ... [2020-12-09 15:37:55,103 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-09 15:37:55,119 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2020-12-09 15:37:55,120 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-09 15:37:55,122 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 15:37:55,123 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 15:37:55,211 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_ba1d13bd-825c-46c6-8f74-2fc79f9a8006/bin/utaipan/witness.graphml [2020-12-09 15:37:55,211 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 15:37:55,212 INFO L168 Benchmark]: Toolchain (without parser) took 4890.59 ms. Allocated memory was 113.2 MB in the beginning and 136.3 MB in the end (delta: 23.1 MB). Free memory was 91.4 MB in the beginning and 40.3 MB in the end (delta: 51.1 MB). Peak memory consumption was 74.8 MB. Max. memory is 16.1 GB. [2020-12-09 15:37:55,213 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 71.3 MB. Free memory was 42.9 MB in the beginning and 42.8 MB in the end (delta: 56.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 15:37:55,213 INFO L168 Benchmark]: CACSL2BoogieTranslator took 312.79 ms. Allocated memory is still 113.2 MB. Free memory was 91.1 MB in the beginning and 69.1 MB in the end (delta: 22.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2020-12-09 15:37:55,213 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.79 ms. Allocated memory is still 113.2 MB. Free memory was 69.1 MB in the beginning and 65.8 MB in the end (delta: 3.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-09 15:37:55,214 INFO L168 Benchmark]: Boogie Preprocessor took 26.91 ms. Allocated memory is still 113.2 MB. Free memory was 65.8 MB in the beginning and 63.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 15:37:55,214 INFO L168 Benchmark]: RCFGBuilder took 524.59 ms. Allocated memory is still 113.2 MB. Free memory was 63.7 MB in the beginning and 51.7 MB in the end (delta: 11.9 MB). Peak memory consumption was 20.9 MB. Max. memory is 16.1 GB. [2020-12-09 15:37:55,214 INFO L168 Benchmark]: TraceAbstraction took 3867.65 ms. Allocated memory was 113.2 MB in the beginning and 136.3 MB in the end (delta: 23.1 MB). Free memory was 51.7 MB in the beginning and 50.8 MB in the end (delta: 974.2 kB). Peak memory consumption was 22.4 MB. Max. memory is 16.1 GB. [2020-12-09 15:37:55,215 INFO L168 Benchmark]: Witness Printer took 111.33 ms. Allocated memory is still 136.3 MB. Free memory was 50.8 MB in the beginning and 40.3 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-09 15:37:55,217 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 71.3 MB. Free memory was 42.9 MB in the beginning and 42.8 MB in the end (delta: 56.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 312.79 ms. Allocated memory is still 113.2 MB. Free memory was 91.1 MB in the beginning and 69.1 MB in the end (delta: 22.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 42.79 ms. Allocated memory is still 113.2 MB. Free memory was 69.1 MB in the beginning and 65.8 MB in the end (delta: 3.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 26.91 ms. Allocated memory is still 113.2 MB. Free memory was 65.8 MB in the beginning and 63.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 524.59 ms. Allocated memory is still 113.2 MB. Free memory was 63.7 MB in the beginning and 51.7 MB in the end (delta: 11.9 MB). Peak memory consumption was 20.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3867.65 ms. Allocated memory was 113.2 MB in the beginning and 136.3 MB in the end (delta: 23.1 MB). Free memory was 51.7 MB in the beginning and 50.8 MB in the end (delta: 974.2 kB). Peak memory consumption was 22.4 MB. Max. memory is 16.1 GB. * Witness Printer took 111.33 ms. Allocated memory is still 136.3 MB. Free memory was 50.8 MB in the beginning and 40.3 MB in the end (delta: 10.5 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: 3.7s, OverallIterations: 19, TraceHistogramMax: 1, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1016 SDtfs, 1786 SDslu, 1337 SDs, 0 SdLazy, 3413 SolverSat, 385 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 175 GetRequests, 69 SyntacticMatches, 2 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.5s 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: 0.0s 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, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s 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...