./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+nlh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864fcaa9-41a2-4fb4-a35d-d558569ce55c/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864fcaa9-41a2-4fb4-a35d-d558569ce55c/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864fcaa9-41a2-4fb4-a35d-d558569ce55c/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864fcaa9-41a2-4fb4-a35d-d558569ce55c/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+nlh-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864fcaa9-41a2-4fb4-a35d-d558569ce55c/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864fcaa9-41a2-4fb4-a35d-d558569ce55c/bin/utaipan-eEHZpOm5b7 --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 f5182ada4c25502e8c117aae65840c303a96073ec563a87f29fad662bee2286b --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 17:52:58,589 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 17:52:58,592 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 17:52:58,648 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 17:52:58,649 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 17:52:58,650 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 17:52:58,652 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 17:52:58,654 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 17:52:58,656 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 17:52:58,657 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 17:52:58,659 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 17:52:58,660 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 17:52:58,660 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 17:52:58,662 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 17:52:58,663 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 17:52:58,665 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 17:52:58,666 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 17:52:58,667 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 17:52:58,670 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 17:52:58,672 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 17:52:58,674 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 17:52:58,676 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 17:52:58,678 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 17:52:58,679 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 17:52:58,683 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 17:52:58,683 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 17:52:58,684 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 17:52:58,685 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 17:52:58,686 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 17:52:58,687 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 17:52:58,687 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 17:52:58,688 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 17:52:58,689 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 17:52:58,690 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 17:52:58,691 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 17:52:58,692 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 17:52:58,693 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 17:52:58,693 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 17:52:58,694 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 17:52:58,695 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 17:52:58,696 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 17:52:58,697 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864fcaa9-41a2-4fb4-a35d-d558569ce55c/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-25 17:52:58,726 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 17:52:58,726 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 17:52:58,727 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 17:52:58,727 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 17:52:58,728 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 17:52:58,728 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 17:52:58,728 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 17:52:58,728 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 17:52:58,729 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 17:52:58,729 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 17:52:58,729 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 17:52:58,729 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 17:52:58,729 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 17:52:58,730 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 17:52:58,730 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 17:52:58,730 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 17:52:58,730 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 17:52:58,731 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 17:52:58,731 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 17:52:58,732 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-25 17:52:58,732 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 17:52:58,732 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-25 17:52:58,732 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 17:52:58,732 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 17:52:58,733 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 17:52:58,733 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 17:52:58,733 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-25 17:52:58,733 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 17:52:58,733 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 17:52:58,734 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 17:52:58,734 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 17:52:58,734 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 17:52:58,734 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 17:52:58,735 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 17:52:58,735 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 17:52:58,735 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 17:52:58,735 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 17:52:58,735 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 17:52:58,736 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 17:52:58,736 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 17:52:58,736 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 17:52:58,736 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864fcaa9-41a2-4fb4-a35d-d558569ce55c/bin/utaipan-eEHZpOm5b7/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864fcaa9-41a2-4fb4-a35d-d558569ce55c/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f5182ada4c25502e8c117aae65840c303a96073ec563a87f29fad662bee2286b [2021-11-25 17:52:58,958 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 17:52:58,993 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 17:52:58,996 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 17:52:58,997 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 17:52:58,998 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 17:52:58,999 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864fcaa9-41a2-4fb4-a35d-d558569ce55c/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+nlh-reducer.c [2021-11-25 17:52:59,075 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864fcaa9-41a2-4fb4-a35d-d558569ce55c/bin/utaipan-eEHZpOm5b7/data/f88b2cb26/df29ad3c1fb4432aa6710d26ff349855/FLAGc7cd1da6f [2021-11-25 17:52:59,611 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 17:52:59,611 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864fcaa9-41a2-4fb4-a35d-d558569ce55c/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+nlh-reducer.c [2021-11-25 17:52:59,637 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864fcaa9-41a2-4fb4-a35d-d558569ce55c/bin/utaipan-eEHZpOm5b7/data/f88b2cb26/df29ad3c1fb4432aa6710d26ff349855/FLAGc7cd1da6f [2021-11-25 17:52:59,935 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864fcaa9-41a2-4fb4-a35d-d558569ce55c/bin/utaipan-eEHZpOm5b7/data/f88b2cb26/df29ad3c1fb4432aa6710d26ff349855 [2021-11-25 17:52:59,939 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 17:52:59,941 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 17:52:59,944 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 17:52:59,944 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 17:52:59,950 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 17:52:59,951 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:52:59" (1/1) ... [2021-11-25 17:52:59,952 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60b119ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:52:59, skipping insertion in model container [2021-11-25 17:52:59,952 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:52:59" (1/1) ... [2021-11-25 17:52:59,960 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 17:53:00,044 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 17:53:00,255 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864fcaa9-41a2-4fb4-a35d-d558569ce55c/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+nlh-reducer.c[901,914] [2021-11-25 17:53:00,263 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864fcaa9-41a2-4fb4-a35d-d558569ce55c/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+nlh-reducer.c[1116,1129] [2021-11-25 17:53:00,266 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864fcaa9-41a2-4fb4-a35d-d558569ce55c/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+nlh-reducer.c[1625,1638] [2021-11-25 17:53:00,267 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864fcaa9-41a2-4fb4-a35d-d558569ce55c/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+nlh-reducer.c[1840,1853] [2021-11-25 17:53:00,269 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864fcaa9-41a2-4fb4-a35d-d558569ce55c/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+nlh-reducer.c[2157,2170] [2021-11-25 17:53:00,271 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864fcaa9-41a2-4fb4-a35d-d558569ce55c/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+nlh-reducer.c[2372,2385] [2021-11-25 17:53:00,273 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864fcaa9-41a2-4fb4-a35d-d558569ce55c/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+nlh-reducer.c[2867,2880] [2021-11-25 17:53:00,275 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864fcaa9-41a2-4fb4-a35d-d558569ce55c/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+nlh-reducer.c[3082,3095] [2021-11-25 17:53:00,278 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864fcaa9-41a2-4fb4-a35d-d558569ce55c/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+nlh-reducer.c[3384,3397] [2021-11-25 17:53:00,279 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864fcaa9-41a2-4fb4-a35d-d558569ce55c/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+nlh-reducer.c[3602,3615] [2021-11-25 17:53:00,281 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864fcaa9-41a2-4fb4-a35d-d558569ce55c/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+nlh-reducer.c[3878,3891] [2021-11-25 17:53:00,283 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864fcaa9-41a2-4fb4-a35d-d558569ce55c/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+nlh-reducer.c[4096,4109] [2021-11-25 17:53:00,285 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864fcaa9-41a2-4fb4-a35d-d558569ce55c/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+nlh-reducer.c[4582,4595] [2021-11-25 17:53:00,287 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864fcaa9-41a2-4fb4-a35d-d558569ce55c/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+nlh-reducer.c[4800,4813] [2021-11-25 17:53:00,564 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864fcaa9-41a2-4fb4-a35d-d558569ce55c/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+nlh-reducer.c[47686,47699] [2021-11-25 17:53:00,579 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864fcaa9-41a2-4fb4-a35d-d558569ce55c/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+nlh-reducer.c[47907,47920] [2021-11-25 17:53:00,621 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 17:53:00,636 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 17:53:00,647 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864fcaa9-41a2-4fb4-a35d-d558569ce55c/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+nlh-reducer.c[901,914] [2021-11-25 17:53:00,648 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864fcaa9-41a2-4fb4-a35d-d558569ce55c/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+nlh-reducer.c[1116,1129] [2021-11-25 17:53:00,649 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864fcaa9-41a2-4fb4-a35d-d558569ce55c/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+nlh-reducer.c[1625,1638] [2021-11-25 17:53:00,650 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864fcaa9-41a2-4fb4-a35d-d558569ce55c/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+nlh-reducer.c[1840,1853] [2021-11-25 17:53:00,651 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864fcaa9-41a2-4fb4-a35d-d558569ce55c/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+nlh-reducer.c[2157,2170] [2021-11-25 17:53:00,652 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864fcaa9-41a2-4fb4-a35d-d558569ce55c/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+nlh-reducer.c[2372,2385] [2021-11-25 17:53:00,653 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864fcaa9-41a2-4fb4-a35d-d558569ce55c/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+nlh-reducer.c[2867,2880] [2021-11-25 17:53:00,654 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864fcaa9-41a2-4fb4-a35d-d558569ce55c/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+nlh-reducer.c[3082,3095] [2021-11-25 17:53:00,655 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864fcaa9-41a2-4fb4-a35d-d558569ce55c/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+nlh-reducer.c[3384,3397] [2021-11-25 17:53:00,657 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864fcaa9-41a2-4fb4-a35d-d558569ce55c/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+nlh-reducer.c[3602,3615] [2021-11-25 17:53:00,658 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864fcaa9-41a2-4fb4-a35d-d558569ce55c/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+nlh-reducer.c[3878,3891] [2021-11-25 17:53:00,659 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864fcaa9-41a2-4fb4-a35d-d558569ce55c/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+nlh-reducer.c[4096,4109] [2021-11-25 17:53:00,660 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864fcaa9-41a2-4fb4-a35d-d558569ce55c/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+nlh-reducer.c[4582,4595] [2021-11-25 17:53:00,661 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864fcaa9-41a2-4fb4-a35d-d558569ce55c/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+nlh-reducer.c[4800,4813] [2021-11-25 17:53:00,821 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864fcaa9-41a2-4fb4-a35d-d558569ce55c/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+nlh-reducer.c[47686,47699] [2021-11-25 17:53:00,835 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864fcaa9-41a2-4fb4-a35d-d558569ce55c/sv-benchmarks/c/loop-invgen/apache-get-tag.i.p+nlh-reducer.c[47907,47920] [2021-11-25 17:53:00,848 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 17:53:00,861 INFO L208 MainTranslator]: Completed translation [2021-11-25 17:53:00,862 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:53:00 WrapperNode [2021-11-25 17:53:00,862 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 17:53:00,863 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 17:53:00,863 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 17:53:00,863 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 17:53:00,871 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:53:00" (1/1) ... [2021-11-25 17:53:00,900 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:53:00" (1/1) ... [2021-11-25 17:53:00,993 INFO L137 Inliner]: procedures = 14, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1692 [2021-11-25 17:53:00,994 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 17:53:00,995 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 17:53:00,995 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 17:53:00,995 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 17:53:01,003 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:53:00" (1/1) ... [2021-11-25 17:53:01,004 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:53:00" (1/1) ... [2021-11-25 17:53:01,008 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:53:00" (1/1) ... [2021-11-25 17:53:01,008 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:53:00" (1/1) ... [2021-11-25 17:53:01,052 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:53:00" (1/1) ... [2021-11-25 17:53:01,065 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:53:00" (1/1) ... [2021-11-25 17:53:01,075 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:53:00" (1/1) ... [2021-11-25 17:53:01,091 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 17:53:01,092 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 17:53:01,092 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 17:53:01,092 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 17:53:01,093 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:53:00" (1/1) ... [2021-11-25 17:53:01,101 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 17:53:01,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864fcaa9-41a2-4fb4-a35d-d558569ce55c/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 17:53:01,125 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864fcaa9-41a2-4fb4-a35d-d558569ce55c/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 17:53:01,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864fcaa9-41a2-4fb4-a35d-d558569ce55c/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 17:53:01,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 17:53:01,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 17:53:01,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 17:53:01,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 17:53:01,342 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 17:53:01,344 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 17:53:02,427 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 17:53:02,455 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 17:53:02,455 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-25 17:53:02,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:53:02 BoogieIcfgContainer [2021-11-25 17:53:02,458 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 17:53:02,460 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 17:53:02,460 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 17:53:02,463 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 17:53:02,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:52:59" (1/3) ... [2021-11-25 17:53:02,464 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f65b68d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:53:02, skipping insertion in model container [2021-11-25 17:53:02,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:53:00" (2/3) ... [2021-11-25 17:53:02,465 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f65b68d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:53:02, skipping insertion in model container [2021-11-25 17:53:02,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:53:02" (3/3) ... [2021-11-25 17:53:02,467 INFO L111 eAbstractionObserver]: Analyzing ICFG apache-get-tag.i.p+nlh-reducer.c [2021-11-25 17:53:02,472 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 17:53:02,472 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2021-11-25 17:53:02,521 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 17:53:02,528 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 17:53:02,528 INFO L340 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2021-11-25 17:53:02,550 INFO L276 IsEmpty]: Start isEmpty. Operand has 302 states, 285 states have (on average 1.975438596491228) internal successors, (563), 301 states have internal predecessors, (563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:53:02,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-25 17:53:02,555 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:53:02,556 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-25 17:53:02,556 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-25 17:53:02,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:53:02,562 INFO L85 PathProgramCache]: Analyzing trace with hash 1144680186, now seen corresponding path program 1 times [2021-11-25 17:53:02,571 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:53:02,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111929437] [2021-11-25 17:53:02,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:53:02,572 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:53:02,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:53:02,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 17:53:02,752 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:53:02,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111929437] [2021-11-25 17:53:02,753 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111929437] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:53:02,753 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:53:02,753 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 17:53:02,755 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269774212] [2021-11-25 17:53:02,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:53:02,760 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 17:53:02,760 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:53:02,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 17:53:02,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 17:53:02,814 INFO L87 Difference]: Start difference. First operand has 302 states, 285 states have (on average 1.975438596491228) internal successors, (563), 301 states have internal predecessors, (563), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:53:03,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:53:03,435 INFO L93 Difference]: Finished difference Result 310 states and 568 transitions. [2021-11-25 17:53:03,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 17:53:03,438 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-11-25 17:53:03,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:53:03,462 INFO L225 Difference]: With dead ends: 310 [2021-11-25 17:53:03,464 INFO L226 Difference]: Without dead ends: 297 [2021-11-25 17:53:03,467 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 17:53:03,474 INFO L933 BasicCegarLoop]: 223 mSDtfsCounter, 485 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 649 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 485 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 649 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-25 17:53:03,482 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [485 Valid, 445 Invalid, 712 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 649 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-25 17:53:03,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2021-11-25 17:53:03,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 297. [2021-11-25 17:53:03,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 282 states have (on average 1.4893617021276595) internal successors, (420), 296 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:53:03,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 420 transitions. [2021-11-25 17:53:03,576 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 420 transitions. Word has length 6 [2021-11-25 17:53:03,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:53:03,577 INFO L470 AbstractCegarLoop]: Abstraction has 297 states and 420 transitions. [2021-11-25 17:53:03,577 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:53:03,578 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 420 transitions. [2021-11-25 17:53:03,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-25 17:53:03,578 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:53:03,579 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:53:03,579 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 17:53:03,580 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-25 17:53:03,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:53:03,584 INFO L85 PathProgramCache]: Analyzing trace with hash 1125351449, now seen corresponding path program 1 times [2021-11-25 17:53:03,585 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:53:03,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590600119] [2021-11-25 17:53:03,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:53:03,587 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:53:03,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:53:03,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 17:53:03,712 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:53:03,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590600119] [2021-11-25 17:53:03,713 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590600119] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:53:03,714 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:53:03,714 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 17:53:03,714 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823480396] [2021-11-25 17:53:03,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:53:03,721 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 17:53:03,721 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:53:03,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 17:53:03,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-25 17:53:03,722 INFO L87 Difference]: Start difference. First operand 297 states and 420 transitions. Second operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:53:04,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:53:04,191 INFO L93 Difference]: Finished difference Result 304 states and 427 transitions. [2021-11-25 17:53:04,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 17:53:04,191 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-11-25 17:53:04,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:53:04,194 INFO L225 Difference]: With dead ends: 304 [2021-11-25 17:53:04,194 INFO L226 Difference]: Without dead ends: 299 [2021-11-25 17:53:04,194 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-25 17:53:04,196 INFO L933 BasicCegarLoop]: 405 mSDtfsCounter, 23 mSDsluCounter, 577 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 982 SdHoareTripleChecker+Invalid, 592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-25 17:53:04,196 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 982 Invalid, 592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 529 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-25 17:53:04,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2021-11-25 17:53:04,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 292. [2021-11-25 17:53:04,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 278 states have (on average 1.276978417266187) internal successors, (355), 291 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:53:04,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 355 transitions. [2021-11-25 17:53:04,210 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 355 transitions. Word has length 7 [2021-11-25 17:53:04,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:53:04,211 INFO L470 AbstractCegarLoop]: Abstraction has 292 states and 355 transitions. [2021-11-25 17:53:04,211 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:53:04,211 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 355 transitions. [2021-11-25 17:53:04,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-25 17:53:04,212 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:53:04,212 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:53:04,212 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 17:53:04,213 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-25 17:53:04,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:53:04,213 INFO L85 PathProgramCache]: Analyzing trace with hash 1144463368, now seen corresponding path program 1 times [2021-11-25 17:53:04,214 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:53:04,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190596682] [2021-11-25 17:53:04,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:53:04,214 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:53:04,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:53:04,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 17:53:04,255 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:53:04,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190596682] [2021-11-25 17:53:04,255 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190596682] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:53:04,255 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:53:04,256 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 17:53:04,256 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574931166] [2021-11-25 17:53:04,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:53:04,256 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 17:53:04,257 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:53:04,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 17:53:04,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 17:53:04,258 INFO L87 Difference]: Start difference. First operand 292 states and 355 transitions. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:53:04,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:53:04,668 INFO L93 Difference]: Finished difference Result 292 states and 355 transitions. [2021-11-25 17:53:04,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 17:53:04,668 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-11-25 17:53:04,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:53:04,670 INFO L225 Difference]: With dead ends: 292 [2021-11-25 17:53:04,671 INFO L226 Difference]: Without dead ends: 290 [2021-11-25 17:53:04,671 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 17:53:04,672 INFO L933 BasicCegarLoop]: 94 mSDtfsCounter, 325 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 502 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-25 17:53:04,673 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [325 Valid, 162 Invalid, 568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 502 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-25 17:53:04,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2021-11-25 17:53:04,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 290. [2021-11-25 17:53:04,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 277 states have (on average 1.2743682310469313) internal successors, (353), 289 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:53:04,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 353 transitions. [2021-11-25 17:53:04,684 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 353 transitions. Word has length 7 [2021-11-25 17:53:04,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:53:04,685 INFO L470 AbstractCegarLoop]: Abstraction has 290 states and 353 transitions. [2021-11-25 17:53:04,685 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:53:04,685 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 353 transitions. [2021-11-25 17:53:04,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-25 17:53:04,686 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:53:04,686 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:53:04,686 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-25 17:53:04,686 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-25 17:53:04,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:53:04,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1118630114, now seen corresponding path program 1 times [2021-11-25 17:53:04,688 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:53:04,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278374702] [2021-11-25 17:53:04,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:53:04,688 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:53:04,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:53:04,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 17:53:04,752 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:53:04,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278374702] [2021-11-25 17:53:04,753 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278374702] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:53:04,753 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:53:04,753 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 17:53:04,753 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021300790] [2021-11-25 17:53:04,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:53:04,754 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 17:53:04,754 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:53:04,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 17:53:04,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 17:53:04,756 INFO L87 Difference]: Start difference. First operand 290 states and 353 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:53:05,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:53:05,062 INFO L93 Difference]: Finished difference Result 295 states and 358 transitions. [2021-11-25 17:53:05,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 17:53:05,063 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-25 17:53:05,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:53:05,065 INFO L225 Difference]: With dead ends: 295 [2021-11-25 17:53:05,066 INFO L226 Difference]: Without dead ends: 293 [2021-11-25 17:53:05,066 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 17:53:05,067 INFO L933 BasicCegarLoop]: 345 mSDtfsCounter, 41 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 743 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-25 17:53:05,067 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 743 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-25 17:53:05,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2021-11-25 17:53:05,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 293. [2021-11-25 17:53:05,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 280 states have (on average 1.2714285714285714) internal successors, (356), 292 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:53:05,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 356 transitions. [2021-11-25 17:53:05,084 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 356 transitions. Word has length 8 [2021-11-25 17:53:05,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:53:05,085 INFO L470 AbstractCegarLoop]: Abstraction has 293 states and 356 transitions. [2021-11-25 17:53:05,085 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:53:05,085 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 356 transitions. [2021-11-25 17:53:05,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-25 17:53:05,086 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:53:05,086 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:53:05,086 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-25 17:53:05,087 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-25 17:53:05,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:53:05,091 INFO L85 PathProgramCache]: Analyzing trace with hash 1261843174, now seen corresponding path program 1 times [2021-11-25 17:53:05,092 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:53:05,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416082189] [2021-11-25 17:53:05,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:53:05,093 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:53:05,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:53:05,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 17:53:05,164 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:53:05,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416082189] [2021-11-25 17:53:05,166 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416082189] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:53:05,166 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:53:05,166 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 17:53:05,167 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649795347] [2021-11-25 17:53:05,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:53:05,167 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 17:53:05,167 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:53:05,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 17:53:05,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 17:53:05,168 INFO L87 Difference]: Start difference. First operand 293 states and 356 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:53:05,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:53:05,683 INFO L93 Difference]: Finished difference Result 293 states and 356 transitions. [2021-11-25 17:53:05,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 17:53:05,684 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-25 17:53:05,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:53:05,685 INFO L225 Difference]: With dead ends: 293 [2021-11-25 17:53:05,685 INFO L226 Difference]: Without dead ends: 291 [2021-11-25 17:53:05,685 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-25 17:53:05,686 INFO L933 BasicCegarLoop]: 92 mSDtfsCounter, 287 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 786 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 849 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 786 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-25 17:53:05,687 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [287 Valid, 273 Invalid, 849 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 786 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-25 17:53:05,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2021-11-25 17:53:05,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 291. [2021-11-25 17:53:05,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 279 states have (on average 1.2688172043010753) internal successors, (354), 290 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:53:05,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 354 transitions. [2021-11-25 17:53:05,694 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 354 transitions. Word has length 10 [2021-11-25 17:53:05,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:53:05,694 INFO L470 AbstractCegarLoop]: Abstraction has 291 states and 354 transitions. [2021-11-25 17:53:05,695 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:53:05,695 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 354 transitions. [2021-11-25 17:53:05,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-25 17:53:05,695 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:53:05,696 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:53:05,696 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-25 17:53:05,696 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-25 17:53:05,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:53:05,696 INFO L85 PathProgramCache]: Analyzing trace with hash 462436822, now seen corresponding path program 1 times [2021-11-25 17:53:05,697 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:53:05,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229706320] [2021-11-25 17:53:05,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:53:05,697 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:53:05,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:53:05,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 17:53:05,736 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:53:05,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229706320] [2021-11-25 17:53:05,737 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229706320] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:53:05,737 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:53:05,737 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 17:53:05,737 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660136908] [2021-11-25 17:53:05,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:53:05,737 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 17:53:05,738 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:53:05,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 17:53:05,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 17:53:05,738 INFO L87 Difference]: Start difference. First operand 291 states and 354 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:53:06,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:53:06,002 INFO L93 Difference]: Finished difference Result 291 states and 354 transitions. [2021-11-25 17:53:06,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 17:53:06,003 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-25 17:53:06,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:53:06,004 INFO L225 Difference]: With dead ends: 291 [2021-11-25 17:53:06,004 INFO L226 Difference]: Without dead ends: 287 [2021-11-25 17:53:06,004 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 17:53:06,005 INFO L933 BasicCegarLoop]: 339 mSDtfsCounter, 12 mSDsluCounter, 423 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 762 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-25 17:53:06,006 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 762 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-25 17:53:06,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2021-11-25 17:53:06,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 287. [2021-11-25 17:53:06,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 276 states have (on average 1.2681159420289856) internal successors, (350), 286 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:53:06,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 350 transitions. [2021-11-25 17:53:06,013 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 350 transitions. Word has length 11 [2021-11-25 17:53:06,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:53:06,013 INFO L470 AbstractCegarLoop]: Abstraction has 287 states and 350 transitions. [2021-11-25 17:53:06,014 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:53:06,014 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 350 transitions. [2021-11-25 17:53:06,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-25 17:53:06,014 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:53:06,015 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:53:06,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-25 17:53:06,015 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-25 17:53:06,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:53:06,016 INFO L85 PathProgramCache]: Analyzing trace with hash -959031714, now seen corresponding path program 1 times [2021-11-25 17:53:06,016 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:53:06,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867261102] [2021-11-25 17:53:06,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:53:06,016 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:53:06,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:53:06,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 17:53:06,136 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:53:06,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867261102] [2021-11-25 17:53:06,137 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867261102] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:53:06,137 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:53:06,137 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-25 17:53:06,137 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58570743] [2021-11-25 17:53:06,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:53:06,138 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-25 17:53:06,138 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:53:06,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-25 17:53:06,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-25 17:53:06,139 INFO L87 Difference]: Start difference. First operand 287 states and 350 transitions. Second operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:53:06,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:53:06,670 INFO L93 Difference]: Finished difference Result 315 states and 380 transitions. [2021-11-25 17:53:06,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-25 17:53:06,671 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-25 17:53:06,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:53:06,673 INFO L225 Difference]: With dead ends: 315 [2021-11-25 17:53:06,673 INFO L226 Difference]: Without dead ends: 313 [2021-11-25 17:53:06,674 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-25 17:53:06,674 INFO L933 BasicCegarLoop]: 326 mSDtfsCounter, 89 mSDsluCounter, 565 mSDsCounter, 0 mSdLazyCounter, 793 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 891 SdHoareTripleChecker+Invalid, 800 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 793 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-25 17:53:06,675 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [89 Valid, 891 Invalid, 800 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 793 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-25 17:53:06,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2021-11-25 17:53:06,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 287. [2021-11-25 17:53:06,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 276 states have (on average 1.2681159420289856) internal successors, (350), 286 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:53:06,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 350 transitions. [2021-11-25 17:53:06,684 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 350 transitions. Word has length 12 [2021-11-25 17:53:06,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:53:06,685 INFO L470 AbstractCegarLoop]: Abstraction has 287 states and 350 transitions. [2021-11-25 17:53:06,685 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:53:06,685 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 350 transitions. [2021-11-25 17:53:06,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-25 17:53:06,686 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:53:06,686 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:53:06,686 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-25 17:53:06,687 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-25 17:53:06,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:53:06,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1465785465, now seen corresponding path program 1 times [2021-11-25 17:53:06,688 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:53:06,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681402227] [2021-11-25 17:53:06,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:53:06,688 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:53:06,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:53:06,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 17:53:06,727 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:53:06,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681402227] [2021-11-25 17:53:06,727 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681402227] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:53:06,728 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:53:06,728 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 17:53:06,728 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177771289] [2021-11-25 17:53:06,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:53:06,728 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 17:53:06,729 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:53:06,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 17:53:06,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 17:53:06,729 INFO L87 Difference]: Start difference. First operand 287 states and 350 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:53:07,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:53:07,210 INFO L93 Difference]: Finished difference Result 307 states and 372 transitions. [2021-11-25 17:53:07,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 17:53:07,211 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-25 17:53:07,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:53:07,212 INFO L225 Difference]: With dead ends: 307 [2021-11-25 17:53:07,212 INFO L226 Difference]: Without dead ends: 305 [2021-11-25 17:53:07,212 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-25 17:53:07,213 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 303 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 790 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 303 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 790 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-25 17:53:07,213 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [303 Valid, 281 Invalid, 855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 790 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-25 17:53:07,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2021-11-25 17:53:07,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 285. [2021-11-25 17:53:07,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 275 states have (on average 1.2654545454545454) internal successors, (348), 284 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:53:07,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 348 transitions. [2021-11-25 17:53:07,222 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 348 transitions. Word has length 12 [2021-11-25 17:53:07,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:53:07,222 INFO L470 AbstractCegarLoop]: Abstraction has 285 states and 348 transitions. [2021-11-25 17:53:07,222 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:53:07,222 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 348 transitions. [2021-11-25 17:53:07,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-25 17:53:07,223 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:53:07,223 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:53:07,224 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-25 17:53:07,224 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-25 17:53:07,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:53:07,224 INFO L85 PathProgramCache]: Analyzing trace with hash 1467509369, now seen corresponding path program 1 times [2021-11-25 17:53:07,225 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:53:07,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621739649] [2021-11-25 17:53:07,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:53:07,225 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:53:07,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:53:07,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 17:53:07,263 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:53:07,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621739649] [2021-11-25 17:53:07,263 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621739649] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:53:07,263 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:53:07,263 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 17:53:07,264 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621256508] [2021-11-25 17:53:07,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:53:07,264 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 17:53:07,264 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:53:07,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 17:53:07,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 17:53:07,265 INFO L87 Difference]: Start difference. First operand 285 states and 348 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:53:07,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:53:07,713 INFO L93 Difference]: Finished difference Result 288 states and 351 transitions. [2021-11-25 17:53:07,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 17:53:07,714 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-25 17:53:07,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:53:07,716 INFO L225 Difference]: With dead ends: 288 [2021-11-25 17:53:07,716 INFO L226 Difference]: Without dead ends: 286 [2021-11-25 17:53:07,716 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-25 17:53:07,717 INFO L933 BasicCegarLoop]: 86 mSDtfsCounter, 277 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 780 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 843 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 780 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-25 17:53:07,717 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [277 Valid, 255 Invalid, 843 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 780 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-25 17:53:07,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2021-11-25 17:53:07,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 283. [2021-11-25 17:53:07,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 274 states have (on average 1.2627737226277371) internal successors, (346), 282 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:53:07,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 346 transitions. [2021-11-25 17:53:07,726 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 346 transitions. Word has length 12 [2021-11-25 17:53:07,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:53:07,727 INFO L470 AbstractCegarLoop]: Abstraction has 283 states and 346 transitions. [2021-11-25 17:53:07,727 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:53:07,727 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 346 transitions. [2021-11-25 17:53:07,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-25 17:53:07,728 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:53:07,728 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:53:07,728 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-25 17:53:07,728 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-25 17:53:07,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:53:07,729 INFO L85 PathProgramCache]: Analyzing trace with hash -1805286727, now seen corresponding path program 1 times [2021-11-25 17:53:07,729 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:53:07,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732211332] [2021-11-25 17:53:07,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:53:07,729 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:53:07,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:53:07,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 17:53:07,827 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:53:07,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732211332] [2021-11-25 17:53:07,828 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732211332] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:53:07,828 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:53:07,828 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-25 17:53:07,828 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375262719] [2021-11-25 17:53:07,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:53:07,829 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-25 17:53:07,829 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:53:07,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-25 17:53:07,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-25 17:53:07,829 INFO L87 Difference]: Start difference. First operand 283 states and 346 transitions. Second operand has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:53:08,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:53:08,274 INFO L93 Difference]: Finished difference Result 321 states and 388 transitions. [2021-11-25 17:53:08,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 17:53:08,275 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-11-25 17:53:08,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:53:08,278 INFO L225 Difference]: With dead ends: 321 [2021-11-25 17:53:08,278 INFO L226 Difference]: Without dead ends: 319 [2021-11-25 17:53:08,278 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-25 17:53:08,279 INFO L933 BasicCegarLoop]: 340 mSDtfsCounter, 57 mSDsluCounter, 497 mSDsCounter, 0 mSdLazyCounter, 562 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 837 SdHoareTripleChecker+Invalid, 566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 562 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-25 17:53:08,279 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [57 Valid, 837 Invalid, 566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 562 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-25 17:53:08,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2021-11-25 17:53:08,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 291. [2021-11-25 17:53:08,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 282 states have (on average 1.2624113475177305) internal successors, (356), 290 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:53:08,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 356 transitions. [2021-11-25 17:53:08,291 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 356 transitions. Word has length 13 [2021-11-25 17:53:08,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:53:08,291 INFO L470 AbstractCegarLoop]: Abstraction has 291 states and 356 transitions. [2021-11-25 17:53:08,292 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:53:08,292 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 356 transitions. [2021-11-25 17:53:08,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-25 17:53:08,296 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:53:08,296 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:53:08,297 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-25 17:53:08,297 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-25 17:53:08,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:53:08,298 INFO L85 PathProgramCache]: Analyzing trace with hash -1803739582, now seen corresponding path program 1 times [2021-11-25 17:53:08,298 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:53:08,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265392820] [2021-11-25 17:53:08,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:53:08,298 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:53:08,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:53:08,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 17:53:08,369 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:53:08,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265392820] [2021-11-25 17:53:08,369 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265392820] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:53:08,370 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:53:08,370 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 17:53:08,370 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799509646] [2021-11-25 17:53:08,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:53:08,371 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 17:53:08,371 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:53:08,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 17:53:08,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 17:53:08,372 INFO L87 Difference]: Start difference. First operand 291 states and 356 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:53:08,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:53:08,882 INFO L93 Difference]: Finished difference Result 311 states and 378 transitions. [2021-11-25 17:53:08,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 17:53:08,882 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-11-25 17:53:08,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:53:08,885 INFO L225 Difference]: With dead ends: 311 [2021-11-25 17:53:08,885 INFO L226 Difference]: Without dead ends: 309 [2021-11-25 17:53:08,885 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-25 17:53:08,886 INFO L933 BasicCegarLoop]: 96 mSDtfsCounter, 294 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 799 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 799 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-25 17:53:08,886 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [294 Valid, 273 Invalid, 864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 799 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-25 17:53:08,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2021-11-25 17:53:08,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 289. [2021-11-25 17:53:08,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 281 states have (on average 1.2597864768683273) internal successors, (354), 288 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:53:08,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 354 transitions. [2021-11-25 17:53:08,897 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 354 transitions. Word has length 13 [2021-11-25 17:53:08,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:53:08,898 INFO L470 AbstractCegarLoop]: Abstraction has 289 states and 354 transitions. [2021-11-25 17:53:08,898 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:53:08,898 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 354 transitions. [2021-11-25 17:53:08,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-25 17:53:08,899 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:53:08,899 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:53:08,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-25 17:53:08,899 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-25 17:53:08,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:53:08,900 INFO L85 PathProgramCache]: Analyzing trace with hash -1751845647, now seen corresponding path program 1 times [2021-11-25 17:53:08,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:53:08,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614057785] [2021-11-25 17:53:08,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:53:08,900 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:53:08,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:53:08,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 17:53:08,990 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:53:08,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614057785] [2021-11-25 17:53:08,990 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614057785] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:53:08,991 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:53:08,991 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-25 17:53:08,991 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076000352] [2021-11-25 17:53:08,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:53:08,991 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-25 17:53:08,991 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:53:08,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-25 17:53:08,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-25 17:53:08,992 INFO L87 Difference]: Start difference. First operand 289 states and 354 transitions. Second operand has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:53:09,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:53:09,382 INFO L93 Difference]: Finished difference Result 299 states and 364 transitions. [2021-11-25 17:53:09,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 17:53:09,382 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-11-25 17:53:09,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:53:09,384 INFO L225 Difference]: With dead ends: 299 [2021-11-25 17:53:09,384 INFO L226 Difference]: Without dead ends: 295 [2021-11-25 17:53:09,385 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-25 17:53:09,385 INFO L933 BasicCegarLoop]: 320 mSDtfsCounter, 29 mSDsluCounter, 482 mSDsCounter, 0 mSdLazyCounter, 548 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 802 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-25 17:53:09,386 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 802 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 548 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-25 17:53:09,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2021-11-25 17:53:09,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 290. [2021-11-25 17:53:09,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 282 states have (on average 1.2588652482269505) internal successors, (355), 289 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:53:09,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 355 transitions. [2021-11-25 17:53:09,395 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 355 transitions. Word has length 13 [2021-11-25 17:53:09,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:53:09,395 INFO L470 AbstractCegarLoop]: Abstraction has 290 states and 355 transitions. [2021-11-25 17:53:09,395 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:53:09,396 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 355 transitions. [2021-11-25 17:53:09,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-25 17:53:09,396 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:53:09,396 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:53:09,396 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-25 17:53:09,397 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-25 17:53:09,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:53:09,397 INFO L85 PathProgramCache]: Analyzing trace with hash -81348045, now seen corresponding path program 1 times [2021-11-25 17:53:09,397 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:53:09,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132470537] [2021-11-25 17:53:09,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:53:09,398 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:53:09,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:53:09,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 17:53:09,498 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:53:09,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132470537] [2021-11-25 17:53:09,498 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132470537] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:53:09,498 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:53:09,499 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-25 17:53:09,499 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360583562] [2021-11-25 17:53:09,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:53:09,499 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-25 17:53:09,499 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:53:09,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-25 17:53:09,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-25 17:53:09,500 INFO L87 Difference]: Start difference. First operand 290 states and 355 transitions. Second operand has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:53:09,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:53:09,937 INFO L93 Difference]: Finished difference Result 316 states and 383 transitions. [2021-11-25 17:53:09,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-25 17:53:09,938 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-11-25 17:53:09,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:53:09,940 INFO L225 Difference]: With dead ends: 316 [2021-11-25 17:53:09,940 INFO L226 Difference]: Without dead ends: 314 [2021-11-25 17:53:09,940 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-25 17:53:09,941 INFO L933 BasicCegarLoop]: 345 mSDtfsCounter, 46 mSDsluCounter, 508 mSDsCounter, 0 mSdLazyCounter, 566 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 853 SdHoareTripleChecker+Invalid, 570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-25 17:53:09,941 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 853 Invalid, 570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 566 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-25 17:53:09,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2021-11-25 17:53:09,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 293. [2021-11-25 17:53:09,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 285 states have (on average 1.256140350877193) internal successors, (358), 292 states have internal predecessors, (358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:53:09,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 358 transitions. [2021-11-25 17:53:09,951 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 358 transitions. Word has length 14 [2021-11-25 17:53:09,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:53:09,951 INFO L470 AbstractCegarLoop]: Abstraction has 293 states and 358 transitions. [2021-11-25 17:53:09,952 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:53:09,952 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 358 transitions. [2021-11-25 17:53:09,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-25 17:53:09,952 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:53:09,952 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:53:09,952 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-25 17:53:09,953 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-25 17:53:09,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:53:09,953 INFO L85 PathProgramCache]: Analyzing trace with hash 286370844, now seen corresponding path program 1 times [2021-11-25 17:53:09,953 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:53:09,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986800352] [2021-11-25 17:53:09,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:53:09,954 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:53:09,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:53:09,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 17:53:09,987 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:53:09,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986800352] [2021-11-25 17:53:09,987 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986800352] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:53:09,987 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:53:09,987 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 17:53:09,988 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915938122] [2021-11-25 17:53:09,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:53:09,988 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 17:53:09,988 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:53:09,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 17:53:09,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 17:53:09,989 INFO L87 Difference]: Start difference. First operand 293 states and 358 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:53:10,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:53:10,163 INFO L93 Difference]: Finished difference Result 293 states and 358 transitions. [2021-11-25 17:53:10,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 17:53:10,163 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-11-25 17:53:10,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:53:10,165 INFO L225 Difference]: With dead ends: 293 [2021-11-25 17:53:10,165 INFO L226 Difference]: Without dead ends: 291 [2021-11-25 17:53:10,166 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 17:53:10,167 INFO L933 BasicCegarLoop]: 209 mSDtfsCounter, 330 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-25 17:53:10,167 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [330 Valid, 416 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-25 17:53:10,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2021-11-25 17:53:10,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 291. [2021-11-25 17:53:10,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 284 states have (on average 1.2535211267605635) internal successors, (356), 290 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:53:10,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 356 transitions. [2021-11-25 17:53:10,177 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 356 transitions. Word has length 15 [2021-11-25 17:53:10,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:53:10,178 INFO L470 AbstractCegarLoop]: Abstraction has 291 states and 356 transitions. [2021-11-25 17:53:10,178 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:53:10,178 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 356 transitions. [2021-11-25 17:53:10,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-25 17:53:10,179 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:53:10,179 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:53:10,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-25 17:53:10,179 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-25 17:53:10,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:53:10,180 INFO L85 PathProgramCache]: Analyzing trace with hash 15602792, now seen corresponding path program 1 times [2021-11-25 17:53:10,180 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:53:10,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229177531] [2021-11-25 17:53:10,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:53:10,180 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:53:10,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:53:10,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 17:53:10,262 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:53:10,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229177531] [2021-11-25 17:53:10,262 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229177531] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:53:10,262 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:53:10,263 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-25 17:53:10,263 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602167534] [2021-11-25 17:53:10,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:53:10,263 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-25 17:53:10,263 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:53:10,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-25 17:53:10,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-25 17:53:10,264 INFO L87 Difference]: Start difference. First operand 291 states and 356 transitions. Second operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:53:10,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:53:10,721 INFO L93 Difference]: Finished difference Result 291 states and 356 transitions. [2021-11-25 17:53:10,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 17:53:10,721 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-11-25 17:53:10,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:53:10,723 INFO L225 Difference]: With dead ends: 291 [2021-11-25 17:53:10,723 INFO L226 Difference]: Without dead ends: 289 [2021-11-25 17:53:10,723 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-25 17:53:10,724 INFO L933 BasicCegarLoop]: 80 mSDtfsCounter, 699 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 568 mSolverCounterSat, 191 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 699 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 759 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 191 IncrementalHoareTripleChecker+Valid, 568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-25 17:53:10,724 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [699 Valid, 150 Invalid, 759 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [191 Valid, 568 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-25 17:53:10,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2021-11-25 17:53:10,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 286. [2021-11-25 17:53:10,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 280 states have (on average 1.2535714285714286) internal successors, (351), 285 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:53:10,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 351 transitions. [2021-11-25 17:53:10,734 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 351 transitions. Word has length 16 [2021-11-25 17:53:10,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:53:10,734 INFO L470 AbstractCegarLoop]: Abstraction has 286 states and 351 transitions. [2021-11-25 17:53:10,734 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:53:10,734 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 351 transitions. [2021-11-25 17:53:10,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-25 17:53:10,735 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:53:10,735 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:53:10,735 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-25 17:53:10,735 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-25 17:53:10,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:53:10,736 INFO L85 PathProgramCache]: Analyzing trace with hash 287565703, now seen corresponding path program 1 times [2021-11-25 17:53:10,736 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:53:10,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573547833] [2021-11-25 17:53:10,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:53:10,736 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:53:10,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:53:10,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 17:53:10,764 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:53:10,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573547833] [2021-11-25 17:53:10,767 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573547833] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:53:10,767 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:53:10,767 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 17:53:10,767 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851938477] [2021-11-25 17:53:10,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:53:10,768 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 17:53:10,768 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:53:10,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 17:53:10,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 17:53:10,769 INFO L87 Difference]: Start difference. First operand 286 states and 351 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:53:11,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:53:11,013 INFO L93 Difference]: Finished difference Result 286 states and 351 transitions. [2021-11-25 17:53:11,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 17:53:11,014 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-11-25 17:53:11,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:53:11,015 INFO L225 Difference]: With dead ends: 286 [2021-11-25 17:53:11,015 INFO L226 Difference]: Without dead ends: 282 [2021-11-25 17:53:11,016 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 17:53:11,016 INFO L933 BasicCegarLoop]: 326 mSDtfsCounter, 7 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 728 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-25 17:53:11,017 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 728 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-25 17:53:11,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2021-11-25 17:53:11,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 282. [2021-11-25 17:53:11,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 277 states have (on average 1.2527075812274369) internal successors, (347), 281 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:53:11,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 347 transitions. [2021-11-25 17:53:11,027 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 347 transitions. Word has length 16 [2021-11-25 17:53:11,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:53:11,027 INFO L470 AbstractCegarLoop]: Abstraction has 282 states and 347 transitions. [2021-11-25 17:53:11,027 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:53:11,027 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 347 transitions. [2021-11-25 17:53:11,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-25 17:53:11,028 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:53:11,028 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:53:11,028 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-25 17:53:11,029 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-25 17:53:11,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:53:11,030 INFO L85 PathProgramCache]: Analyzing trace with hash 1860971197, now seen corresponding path program 1 times [2021-11-25 17:53:11,030 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:53:11,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377309369] [2021-11-25 17:53:11,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:53:11,030 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:53:11,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:53:11,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 17:53:11,096 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:53:11,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377309369] [2021-11-25 17:53:11,096 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377309369] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:53:11,096 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:53:11,097 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-25 17:53:11,097 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725799068] [2021-11-25 17:53:11,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:53:11,097 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-25 17:53:11,097 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:53:11,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-25 17:53:11,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-25 17:53:11,098 INFO L87 Difference]: Start difference. First operand 282 states and 347 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:53:11,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:53:11,606 INFO L93 Difference]: Finished difference Result 296 states and 363 transitions. [2021-11-25 17:53:11,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 17:53:11,606 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-11-25 17:53:11,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:53:11,608 INFO L225 Difference]: With dead ends: 296 [2021-11-25 17:53:11,608 INFO L226 Difference]: Without dead ends: 294 [2021-11-25 17:53:11,609 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-25 17:53:11,610 INFO L933 BasicCegarLoop]: 82 mSDtfsCounter, 485 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 648 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 485 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 776 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 648 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-25 17:53:11,610 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [485 Valid, 158 Invalid, 776 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 648 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-25 17:53:11,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2021-11-25 17:53:11,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 278. [2021-11-25 17:53:11,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 274 states have (on average 1.2518248175182483) internal successors, (343), 277 states have internal predecessors, (343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:53:11,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 343 transitions. [2021-11-25 17:53:11,620 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 343 transitions. Word has length 17 [2021-11-25 17:53:11,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:53:11,621 INFO L470 AbstractCegarLoop]: Abstraction has 278 states and 343 transitions. [2021-11-25 17:53:11,621 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:53:11,621 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 343 transitions. [2021-11-25 17:53:11,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-25 17:53:11,622 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:53:11,622 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:53:11,622 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-25 17:53:11,622 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-25 17:53:11,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:53:11,623 INFO L85 PathProgramCache]: Analyzing trace with hash 1914412277, now seen corresponding path program 1 times [2021-11-25 17:53:11,623 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:53:11,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255213969] [2021-11-25 17:53:11,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:53:11,623 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:53:11,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:53:11,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 17:53:11,695 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:53:11,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255213969] [2021-11-25 17:53:11,696 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255213969] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:53:11,696 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:53:11,696 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-25 17:53:11,696 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903221092] [2021-11-25 17:53:11,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:53:11,696 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-25 17:53:11,697 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:53:11,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-25 17:53:11,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-25 17:53:11,697 INFO L87 Difference]: Start difference. First operand 278 states and 343 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:53:12,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:53:12,122 INFO L93 Difference]: Finished difference Result 278 states and 343 transitions. [2021-11-25 17:53:12,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 17:53:12,122 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-11-25 17:53:12,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:53:12,124 INFO L225 Difference]: With dead ends: 278 [2021-11-25 17:53:12,124 INFO L226 Difference]: Without dead ends: 274 [2021-11-25 17:53:12,125 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-25 17:53:12,126 INFO L933 BasicCegarLoop]: 74 mSDtfsCounter, 462 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 640 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 462 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 766 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-25 17:53:12,126 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [462 Valid, 148 Invalid, 766 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 640 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-25 17:53:12,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2021-11-25 17:53:12,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 274. [2021-11-25 17:53:12,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 271 states have (on average 1.2509225092250922) internal successors, (339), 273 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:53:12,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 339 transitions. [2021-11-25 17:53:12,136 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 339 transitions. Word has length 17 [2021-11-25 17:53:12,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:53:12,136 INFO L470 AbstractCegarLoop]: Abstraction has 274 states and 339 transitions. [2021-11-25 17:53:12,136 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:53:12,137 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 339 transitions. [2021-11-25 17:53:12,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-25 17:53:12,137 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:53:12,137 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:53:12,137 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-25 17:53:12,138 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-25 17:53:12,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:53:12,138 INFO L85 PathProgramCache]: Analyzing trace with hash 339721299, now seen corresponding path program 1 times [2021-11-25 17:53:12,139 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:53:12,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578717795] [2021-11-25 17:53:12,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:53:12,139 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:53:12,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:53:12,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 17:53:12,186 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:53:12,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578717795] [2021-11-25 17:53:12,186 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578717795] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:53:12,186 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:53:12,187 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-25 17:53:12,187 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065007404] [2021-11-25 17:53:12,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:53:12,187 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-25 17:53:12,187 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:53:12,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-25 17:53:12,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-25 17:53:12,188 INFO L87 Difference]: Start difference. First operand 274 states and 339 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:53:12,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:53:12,619 INFO L93 Difference]: Finished difference Result 283 states and 350 transitions. [2021-11-25 17:53:12,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 17:53:12,620 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-11-25 17:53:12,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:53:12,621 INFO L225 Difference]: With dead ends: 283 [2021-11-25 17:53:12,622 INFO L226 Difference]: Without dead ends: 249 [2021-11-25 17:53:12,622 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-25 17:53:12,623 INFO L933 BasicCegarLoop]: 76 mSDtfsCounter, 464 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 644 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 464 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 644 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-25 17:53:12,623 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [464 Valid, 148 Invalid, 772 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 644 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-25 17:53:12,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2021-11-25 17:53:12,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 249. [2021-11-25 17:53:12,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 247 states have (on average 1.008097165991903) internal successors, (249), 248 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:53:12,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 249 transitions. [2021-11-25 17:53:12,629 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 249 transitions. Word has length 17 [2021-11-25 17:53:12,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:53:12,630 INFO L470 AbstractCegarLoop]: Abstraction has 249 states and 249 transitions. [2021-11-25 17:53:12,630 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:53:12,630 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 249 transitions. [2021-11-25 17:53:12,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2021-11-25 17:53:12,635 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:53:12,635 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:53:12,636 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-25 17:53:12,636 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-25 17:53:12,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:53:12,636 INFO L85 PathProgramCache]: Analyzing trace with hash -1536774122, now seen corresponding path program 1 times [2021-11-25 17:53:12,637 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:53:12,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965834718] [2021-11-25 17:53:12,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:53:12,637 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:53:12,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:53:14,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 17:53:14,465 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:53:14,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965834718] [2021-11-25 17:53:14,466 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965834718] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:53:14,466 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:53:14,466 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [63] imperfect sequences [] total 63 [2021-11-25 17:53:14,466 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884206013] [2021-11-25 17:53:14,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:53:14,467 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2021-11-25 17:53:14,467 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:53:14,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2021-11-25 17:53:14,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1834, Invalid=2072, Unknown=0, NotChecked=0, Total=3906 [2021-11-25 17:53:14,471 INFO L87 Difference]: Start difference. First operand 249 states and 249 transitions. Second operand has 63 states, 63 states have (on average 3.857142857142857) internal successors, (243), 63 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:53:15,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:53:15,332 INFO L93 Difference]: Finished difference Result 250 states and 250 transitions. [2021-11-25 17:53:15,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2021-11-25 17:53:15,333 INFO L78 Accepts]: Start accepts. Automaton has has 63 states, 63 states have (on average 3.857142857142857) internal successors, (243), 63 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 243 [2021-11-25 17:53:15,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:53:15,335 INFO L225 Difference]: With dead ends: 250 [2021-11-25 17:53:15,335 INFO L226 Difference]: Without dead ends: 248 [2021-11-25 17:53:15,337 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=1896, Invalid=2136, Unknown=0, NotChecked=0, Total=4032 [2021-11-25 17:53:15,337 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 732 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1690 mSolverCounterSat, 242 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 732 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 1932 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 242 IncrementalHoareTripleChecker+Valid, 1690 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-25 17:53:15,338 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [732 Valid, 11 Invalid, 1932 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [242 Valid, 1690 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-25 17:53:15,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2021-11-25 17:53:15,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 247. [2021-11-25 17:53:15,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 246 states have (on average 1.0040650406504066) internal successors, (247), 246 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:53:15,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 247 transitions. [2021-11-25 17:53:15,345 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 247 transitions. Word has length 243 [2021-11-25 17:53:15,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:53:15,346 INFO L470 AbstractCegarLoop]: Abstraction has 247 states and 247 transitions. [2021-11-25 17:53:15,346 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 63 states have (on average 3.857142857142857) internal successors, (243), 63 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:53:15,346 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 247 transitions. [2021-11-25 17:53:15,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2021-11-25 17:53:15,350 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 17:53:15,350 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:53:15,350 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-25 17:53:15,351 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-25 17:53:15,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 17:53:15,351 INFO L85 PathProgramCache]: Analyzing trace with hash -395352156, now seen corresponding path program 1 times [2021-11-25 17:53:15,351 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 17:53:15,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955726060] [2021-11-25 17:53:15,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 17:53:15,352 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 17:53:15,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 17:53:16,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 17:53:16,316 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 17:53:16,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955726060] [2021-11-25 17:53:16,316 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955726060] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 17:53:16,317 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 17:53:16,317 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-25 17:53:16,318 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35698621] [2021-11-25 17:53:16,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 17:53:16,320 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-25 17:53:16,320 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 17:53:16,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-25 17:53:16,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-25 17:53:16,321 INFO L87 Difference]: Start difference. First operand 247 states and 247 transitions. Second operand has 7 states, 7 states have (on average 34.857142857142854) internal successors, (244), 7 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:53:16,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 17:53:16,714 INFO L93 Difference]: Finished difference Result 249 states and 249 transitions. [2021-11-25 17:53:16,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 17:53:16,715 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 34.857142857142854) internal successors, (244), 7 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 244 [2021-11-25 17:53:16,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 17:53:16,715 INFO L225 Difference]: With dead ends: 249 [2021-11-25 17:53:16,716 INFO L226 Difference]: Without dead ends: 0 [2021-11-25 17:53:16,717 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 114 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-25 17:53:16,718 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 424 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 546 mSolverCounterSat, 129 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 424 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-25 17:53:16,718 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [424 Valid, 5 Invalid, 675 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [129 Valid, 546 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-25 17:53:16,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-25 17:53:16,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-25 17:53:16,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:53:16,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-25 17:53:16,719 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 244 [2021-11-25 17:53:16,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 17:53:16,719 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-25 17:53:16,720 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 34.857142857142854) internal successors, (244), 7 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 17:53:16,720 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-25 17:53:16,720 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-25 17:53:16,722 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (15 of 16 remaining) [2021-11-25 17:53:16,724 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (14 of 16 remaining) [2021-11-25 17:53:16,724 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (13 of 16 remaining) [2021-11-25 17:53:16,724 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (12 of 16 remaining) [2021-11-25 17:53:16,725 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (11 of 16 remaining) [2021-11-25 17:53:16,725 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (10 of 16 remaining) [2021-11-25 17:53:16,725 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION (9 of 16 remaining) [2021-11-25 17:53:16,725 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION (8 of 16 remaining) [2021-11-25 17:53:16,725 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION (7 of 16 remaining) [2021-11-25 17:53:16,726 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION (6 of 16 remaining) [2021-11-25 17:53:16,726 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION (5 of 16 remaining) [2021-11-25 17:53:16,727 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION (4 of 16 remaining) [2021-11-25 17:53:16,728 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION (3 of 16 remaining) [2021-11-25 17:53:16,728 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION (2 of 16 remaining) [2021-11-25 17:53:16,728 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION (1 of 16 remaining) [2021-11-25 17:53:16,728 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION (0 of 16 remaining) [2021-11-25 17:53:16,729 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-25 17:53:16,731 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-25 17:53:18,651 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 47) no Hoare annotation was computed. [2021-11-25 17:53:18,651 INFO L858 garLoopResultBuilder]: For program point L1555(lines 1555 2805) no Hoare annotation was computed. [2021-11-25 17:53:18,651 INFO L858 garLoopResultBuilder]: For program point L2546(lines 2546 2653) no Hoare annotation was computed. [2021-11-25 17:53:18,651 INFO L858 garLoopResultBuilder]: For program point L2480(lines 2480 2663) no Hoare annotation was computed. [2021-11-25 17:53:18,651 INFO L858 garLoopResultBuilder]: For program point L432(lines 432 2978) no Hoare annotation was computed. [2021-11-25 17:53:18,651 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION(line 255) no Hoare annotation was computed. [2021-11-25 17:53:18,652 INFO L858 garLoopResultBuilder]: For program point L697(lines 697 2937) no Hoare annotation was computed. [2021-11-25 17:53:18,652 INFO L858 garLoopResultBuilder]: For program point L1688(lines 1688 2785) no Hoare annotation was computed. [2021-11-25 17:53:18,652 INFO L858 garLoopResultBuilder]: For program point L1622(lines 1622 2795) no Hoare annotation was computed. [2021-11-25 17:53:18,652 INFO L858 garLoopResultBuilder]: For program point L103(lines 103 125) no Hoare annotation was computed. [2021-11-25 17:53:18,652 INFO L858 garLoopResultBuilder]: For program point L1953(lines 1953 2744) no Hoare annotation was computed. [2021-11-25 17:53:18,652 INFO L858 garLoopResultBuilder]: For program point L830(lines 830 2917) no Hoare annotation was computed. [2021-11-25 17:53:18,652 INFO L858 garLoopResultBuilder]: For program point L764(lines 764 2927) no Hoare annotation was computed. [2021-11-25 17:53:18,652 INFO L858 garLoopResultBuilder]: For program point L2614(lines 2614 2643) no Hoare annotation was computed. [2021-11-25 17:53:18,653 INFO L858 garLoopResultBuilder]: For program point L2218(lines 2218 2703) no Hoare annotation was computed. [2021-11-25 17:53:18,653 INFO L858 garLoopResultBuilder]: For program point L1095(lines 1095 2876) no Hoare annotation was computed. [2021-11-25 17:53:18,653 INFO L858 garLoopResultBuilder]: For program point L1360(lines 1360 2835) no Hoare annotation was computed. [2021-11-25 17:53:18,653 INFO L858 garLoopResultBuilder]: For program point L2351(lines 2351 2683) no Hoare annotation was computed. [2021-11-25 17:53:18,653 INFO L858 garLoopResultBuilder]: For program point L2285(lines 2285 2693) no Hoare annotation was computed. [2021-11-25 17:53:18,653 INFO L858 garLoopResultBuilder]: For program point L171(lines 171 193) no Hoare annotation was computed. [2021-11-25 17:53:18,653 INFO L858 garLoopResultBuilder]: For program point L105(line 105) no Hoare annotation was computed. [2021-11-25 17:53:18,653 INFO L858 garLoopResultBuilder]: For program point L2616(line 2616) no Hoare annotation was computed. [2021-11-25 17:53:18,653 INFO L858 garLoopResultBuilder]: For program point L502(lines 502 2967) no Hoare annotation was computed. [2021-11-25 17:53:18,654 INFO L858 garLoopResultBuilder]: For program point L1493(lines 1493 2815) no Hoare annotation was computed. [2021-11-25 17:53:18,654 INFO L858 garLoopResultBuilder]: For program point L1427(lines 1427 2825) no Hoare annotation was computed. [2021-11-25 17:53:18,654 INFO L858 garLoopResultBuilder]: For program point L1758(lines 1758 2774) no Hoare annotation was computed. [2021-11-25 17:53:18,654 INFO L858 garLoopResultBuilder]: For program point L635(lines 635 2947) no Hoare annotation was computed. [2021-11-25 17:53:18,654 INFO L858 garLoopResultBuilder]: For program point L569(lines 569 2957) no Hoare annotation was computed. [2021-11-25 17:53:18,654 INFO L861 garLoopResultBuilder]: At program point L2617(lines 16 3008) the Hoare annotation is: true [2021-11-25 17:53:18,654 INFO L858 garLoopResultBuilder]: For program point L173(line 173) no Hoare annotation was computed. [2021-11-25 17:53:18,655 INFO L858 garLoopResultBuilder]: For program point L2023(lines 2023 2733) no Hoare annotation was computed. [2021-11-25 17:53:18,655 INFO L858 garLoopResultBuilder]: For program point L900(lines 900 2906) no Hoare annotation was computed. [2021-11-25 17:53:18,655 INFO L858 garLoopResultBuilder]: For program point L1165(lines 1165 2865) no Hoare annotation was computed. [2021-11-25 17:53:18,655 INFO L858 garLoopResultBuilder]: For program point L2156(lines 2156 2713) no Hoare annotation was computed. [2021-11-25 17:53:18,655 INFO L858 garLoopResultBuilder]: For program point L2090(lines 2090 2723) no Hoare annotation was computed. [2021-11-25 17:53:18,655 INFO L858 garLoopResultBuilder]: For program point L2421(lines 2421 2672) no Hoare annotation was computed. [2021-11-25 17:53:18,655 INFO L858 garLoopResultBuilder]: For program point L307(lines 307 2997) no Hoare annotation was computed. [2021-11-25 17:53:18,655 INFO L858 garLoopResultBuilder]: For program point L1298(lines 1298 2845) no Hoare annotation was computed. [2021-11-25 17:53:18,656 INFO L858 garLoopResultBuilder]: For program point L1232(lines 1232 2855) no Hoare annotation was computed. [2021-11-25 17:53:18,656 INFO L858 garLoopResultBuilder]: For program point L1563(lines 1563 2804) no Hoare annotation was computed. [2021-11-25 17:53:18,656 INFO L858 garLoopResultBuilder]: For program point L440(lines 440 2977) no Hoare annotation was computed. [2021-11-25 17:53:18,656 INFO L858 garLoopResultBuilder]: For program point L374(lines 374 2987) no Hoare annotation was computed. [2021-11-25 17:53:18,656 INFO L858 garLoopResultBuilder]: For program point L1828(lines 1828 2763) no Hoare annotation was computed. [2021-11-25 17:53:18,656 INFO L858 garLoopResultBuilder]: For program point L705(lines 705 2936) no Hoare annotation was computed. [2021-11-25 17:53:18,656 INFO L858 garLoopResultBuilder]: For program point L45(lines 45 55) no Hoare annotation was computed. [2021-11-25 17:53:18,656 INFO L858 garLoopResultBuilder]: For program point L970(lines 970 2895) no Hoare annotation was computed. [2021-11-25 17:53:18,657 INFO L858 garLoopResultBuilder]: For program point L1961(lines 1961 2743) no Hoare annotation was computed. [2021-11-25 17:53:18,657 INFO L858 garLoopResultBuilder]: For program point L1895(lines 1895 2753) no Hoare annotation was computed. [2021-11-25 17:53:18,657 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 88) no Hoare annotation was computed. [2021-11-25 17:53:18,657 INFO L858 garLoopResultBuilder]: For program point L2226(lines 2226 2702) no Hoare annotation was computed. [2021-11-25 17:53:18,658 INFO L858 garLoopResultBuilder]: For program point L1103(lines 1103 2875) no Hoare annotation was computed. [2021-11-25 17:53:18,658 INFO L858 garLoopResultBuilder]: For program point L1037(lines 1037 2885) no Hoare annotation was computed. [2021-11-25 17:53:18,658 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION(line 2604) no Hoare annotation was computed. [2021-11-25 17:53:18,658 INFO L858 garLoopResultBuilder]: For program point L2623(lines 2623 2642) no Hoare annotation was computed. [2021-11-25 17:53:18,658 INFO L858 garLoopResultBuilder]: For program point L2491(lines 2491 2661) no Hoare annotation was computed. [2021-11-25 17:53:18,658 INFO L858 garLoopResultBuilder]: For program point L1368(lines 1368 2834) no Hoare annotation was computed. [2021-11-25 17:53:18,658 INFO L858 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2021-11-25 17:53:18,658 INFO L858 garLoopResultBuilder]: For program point L1633(lines 1633 2793) no Hoare annotation was computed. [2021-11-25 17:53:18,659 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 117) no Hoare annotation was computed. [2021-11-25 17:53:18,659 INFO L858 garLoopResultBuilder]: For program point L2558(lines 2558 2651) no Hoare annotation was computed. [2021-11-25 17:53:18,659 INFO L858 garLoopResultBuilder]: For program point L510(lines 510 2966) no Hoare annotation was computed. [2021-11-25 17:53:18,659 INFO L858 garLoopResultBuilder]: For program point L246(lines 246 281) no Hoare annotation was computed. [2021-11-25 17:53:18,659 INFO L858 garLoopResultBuilder]: For program point L775(lines 775 2925) no Hoare annotation was computed. [2021-11-25 17:53:18,659 INFO L858 garLoopResultBuilder]: For program point L1766(lines 1766 2773) no Hoare annotation was computed. [2021-11-25 17:53:18,660 INFO L858 garLoopResultBuilder]: For program point L1700(lines 1700 2783) no Hoare annotation was computed. [2021-11-25 17:53:18,661 INFO L854 garLoopResultBuilder]: At program point L2625(lines 25 3002) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~main__t~0#1|) (<= |ULTIMATE.start_main_~main__t~0#1| |ULTIMATE.start_main_~main__tagbuf_len~0#1|)) [2021-11-25 17:53:18,661 INFO L858 garLoopResultBuilder]: For program point L115(lines 115 123) no Hoare annotation was computed. [2021-11-25 17:53:18,661 INFO L858 garLoopResultBuilder]: For program point L2031(lines 2031 2732) no Hoare annotation was computed. [2021-11-25 17:53:18,661 INFO L858 garLoopResultBuilder]: For program point L908(lines 908 2905) no Hoare annotation was computed. [2021-11-25 17:53:18,661 INFO L858 garLoopResultBuilder]: For program point L842(lines 842 2915) no Hoare annotation was computed. [2021-11-25 17:53:18,661 INFO L858 garLoopResultBuilder]: For program point L2296(lines 2296 2691) no Hoare annotation was computed. [2021-11-25 17:53:18,661 INFO L858 garLoopResultBuilder]: For program point L1173(lines 1173 2864) no Hoare annotation was computed. [2021-11-25 17:53:18,662 INFO L858 garLoopResultBuilder]: For program point L1438(lines 1438 2823) no Hoare annotation was computed. [2021-11-25 17:53:18,662 INFO L858 garLoopResultBuilder]: For program point L2429(lines 2429 2671) no Hoare annotation was computed. [2021-11-25 17:53:18,662 INFO L858 garLoopResultBuilder]: For program point L315(lines 315 2996) no Hoare annotation was computed. [2021-11-25 17:53:18,662 INFO L858 garLoopResultBuilder]: For program point L2363(lines 2363 2681) no Hoare annotation was computed. [2021-11-25 17:53:18,662 INFO L858 garLoopResultBuilder]: For program point L183(lines 183 191) no Hoare annotation was computed. [2021-11-25 17:53:18,662 INFO L858 garLoopResultBuilder]: For program point L117(line 117) no Hoare annotation was computed. [2021-11-25 17:53:18,662 INFO L858 garLoopResultBuilder]: For program point L580(lines 580 2955) no Hoare annotation was computed. [2021-11-25 17:53:18,662 INFO L858 garLoopResultBuilder]: For program point L1571(lines 1571 2803) no Hoare annotation was computed. [2021-11-25 17:53:18,662 INFO L858 garLoopResultBuilder]: For program point L1505(lines 1505 2813) no Hoare annotation was computed. [2021-11-25 17:53:18,663 INFO L858 garLoopResultBuilder]: For program point L1836(lines 1836 2762) no Hoare annotation was computed. [2021-11-25 17:53:18,663 INFO L858 garLoopResultBuilder]: For program point L713(lines 713 2935) no Hoare annotation was computed. [2021-11-25 17:53:18,663 INFO L858 garLoopResultBuilder]: For program point L647(lines 647 2945) no Hoare annotation was computed. [2021-11-25 17:53:18,663 INFO L858 garLoopResultBuilder]: For program point L185(line 185) no Hoare annotation was computed. [2021-11-25 17:53:18,663 INFO L858 garLoopResultBuilder]: For program point L2101(lines 2101 2721) no Hoare annotation was computed. [2021-11-25 17:53:18,663 INFO L858 garLoopResultBuilder]: For program point L978(lines 978 2894) no Hoare annotation was computed. [2021-11-25 17:53:18,663 INFO L858 garLoopResultBuilder]: For program point L1243(lines 1243 2853) no Hoare annotation was computed. [2021-11-25 17:53:18,663 INFO L858 garLoopResultBuilder]: For program point L2234(lines 2234 2701) no Hoare annotation was computed. [2021-11-25 17:53:18,664 INFO L858 garLoopResultBuilder]: For program point L2168(lines 2168 2711) no Hoare annotation was computed. [2021-11-25 17:53:18,664 INFO L858 garLoopResultBuilder]: For program point L2631(lines 2631 2641) no Hoare annotation was computed. [2021-11-25 17:53:18,664 INFO L858 garLoopResultBuilder]: For program point L2499(lines 2499 2660) no Hoare annotation was computed. [2021-11-25 17:53:18,664 INFO L858 garLoopResultBuilder]: For program point L385(lines 385 2985) no Hoare annotation was computed. [2021-11-25 17:53:18,664 INFO L858 garLoopResultBuilder]: For program point L1376(lines 1376 2833) no Hoare annotation was computed. [2021-11-25 17:53:18,664 INFO L858 garLoopResultBuilder]: For program point L1310(lines 1310 2843) no Hoare annotation was computed. [2021-11-25 17:53:18,664 INFO L858 garLoopResultBuilder]: For program point L253(lines 253 275) no Hoare annotation was computed. [2021-11-25 17:53:18,664 INFO L858 garLoopResultBuilder]: For program point L1641(lines 1641 2792) no Hoare annotation was computed. [2021-11-25 17:53:18,665 INFO L858 garLoopResultBuilder]: For program point L518(lines 518 2965) no Hoare annotation was computed. [2021-11-25 17:53:18,665 INFO L858 garLoopResultBuilder]: For program point L452(lines 452 2975) no Hoare annotation was computed. [2021-11-25 17:53:18,665 INFO L858 garLoopResultBuilder]: For program point L1906(lines 1906 2751) no Hoare annotation was computed. [2021-11-25 17:53:18,665 INFO L858 garLoopResultBuilder]: For program point L783(lines 783 2924) no Hoare annotation was computed. [2021-11-25 17:53:18,665 INFO L858 garLoopResultBuilder]: For program point L255(line 255) no Hoare annotation was computed. [2021-11-25 17:53:18,665 INFO L858 garLoopResultBuilder]: For program point L1048(lines 1048 2883) no Hoare annotation was computed. [2021-11-25 17:53:18,665 INFO L858 garLoopResultBuilder]: For program point L2039(lines 2039 2731) no Hoare annotation was computed. [2021-11-25 17:53:18,665 INFO L858 garLoopResultBuilder]: For program point L1973(lines 1973 2741) no Hoare annotation was computed. [2021-11-25 17:53:18,666 INFO L854 garLoopResultBuilder]: At program point L2634(lines 64 3001) the Hoare annotation is: (let ((.cse0 (< |ULTIMATE.start_main_~main__t~0#1| |ULTIMATE.start_main_~main__tagbuf_len~0#1|))) (or (and (= |ULTIMATE.start_main_~main__t~0#1| 0) .cse0) (and (<= 1 |ULTIMATE.start_main_~main__t~0#1|) .cse0))) [2021-11-25 17:53:18,666 INFO L858 garLoopResultBuilder]: For program point L2304(lines 2304 2690) no Hoare annotation was computed. [2021-11-25 17:53:18,666 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-25 17:53:18,666 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 157) no Hoare annotation was computed. [2021-11-25 17:53:18,666 INFO L858 garLoopResultBuilder]: For program point L1181(lines 1181 2863) no Hoare annotation was computed. [2021-11-25 17:53:18,666 INFO L858 garLoopResultBuilder]: For program point L1115(lines 1115 2873) no Hoare annotation was computed. [2021-11-25 17:53:18,666 INFO L858 garLoopResultBuilder]: For program point L2569(lines 2569 2649) no Hoare annotation was computed. [2021-11-25 17:53:18,666 INFO L858 garLoopResultBuilder]: For program point L1446(lines 1446 2822) no Hoare annotation was computed. [2021-11-25 17:53:18,667 INFO L858 garLoopResultBuilder]: For program point L323(lines 323 2995) no Hoare annotation was computed. [2021-11-25 17:53:18,667 INFO L858 garLoopResultBuilder]: For program point L1711(lines 1711 2781) no Hoare annotation was computed. [2021-11-25 17:53:18,667 INFO L858 garLoopResultBuilder]: For program point L588(lines 588 2954) no Hoare annotation was computed. [2021-11-25 17:53:18,667 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION(line 185) no Hoare annotation was computed. [2021-11-25 17:53:18,667 INFO L858 garLoopResultBuilder]: For program point L853(lines 853 2913) no Hoare annotation was computed. [2021-11-25 17:53:18,667 INFO L858 garLoopResultBuilder]: For program point L1844(lines 1844 2761) no Hoare annotation was computed. [2021-11-25 17:53:18,667 INFO L858 garLoopResultBuilder]: For program point L1778(lines 1778 2771) no Hoare annotation was computed. [2021-11-25 17:53:18,667 INFO L858 garLoopResultBuilder]: For program point L2109(lines 2109 2720) no Hoare annotation was computed. [2021-11-25 17:53:18,668 INFO L858 garLoopResultBuilder]: For program point L986(lines 986 2893) no Hoare annotation was computed. [2021-11-25 17:53:18,668 INFO L858 garLoopResultBuilder]: For program point L920(lines 920 2903) no Hoare annotation was computed. [2021-11-25 17:53:18,668 INFO L858 garLoopResultBuilder]: For program point L2374(lines 2374 2679) no Hoare annotation was computed. [2021-11-25 17:53:18,668 INFO L858 garLoopResultBuilder]: For program point L1251(lines 1251 2852) no Hoare annotation was computed. [2021-11-25 17:53:18,668 INFO L858 garLoopResultBuilder]: For program point L1516(lines 1516 2811) no Hoare annotation was computed. [2021-11-25 17:53:18,668 INFO L858 garLoopResultBuilder]: For program point L2507(lines 2507 2659) no Hoare annotation was computed. [2021-11-25 17:53:18,668 INFO L858 garLoopResultBuilder]: For program point L393(lines 393 2984) no Hoare annotation was computed. [2021-11-25 17:53:18,668 INFO L858 garLoopResultBuilder]: For program point L2441(lines 2441 2669) no Hoare annotation was computed. [2021-11-25 17:53:18,669 INFO L858 garLoopResultBuilder]: For program point L658(lines 658 2943) no Hoare annotation was computed. [2021-11-25 17:53:18,669 INFO L858 garLoopResultBuilder]: For program point L1649(lines 1649 2791) no Hoare annotation was computed. [2021-11-25 17:53:18,669 INFO L854 garLoopResultBuilder]: At program point L2640(lines 2591 2647) the Hoare annotation is: (and (< |ULTIMATE.start_main_~main__t~0#1| |ULTIMATE.start_main_~main__tagbuf_len~0#1|) (<= 59 |ULTIMATE.start_main_~main__t~0#1|)) [2021-11-25 17:53:18,669 INFO L858 garLoopResultBuilder]: For program point L1583(lines 1583 2801) no Hoare annotation was computed. [2021-11-25 17:53:18,669 INFO L858 garLoopResultBuilder]: For program point L64(lines 64 3001) no Hoare annotation was computed. [2021-11-25 17:53:18,669 INFO L858 garLoopResultBuilder]: For program point L1914(lines 1914 2750) no Hoare annotation was computed. [2021-11-25 17:53:18,669 INFO L858 garLoopResultBuilder]: For program point L791(lines 791 2923) no Hoare annotation was computed. [2021-11-25 17:53:18,669 INFO L858 garLoopResultBuilder]: For program point L725(lines 725 2933) no Hoare annotation was computed. [2021-11-25 17:53:18,670 INFO L858 garLoopResultBuilder]: For program point L2179(lines 2179 2709) no Hoare annotation was computed. [2021-11-25 17:53:18,670 INFO L858 garLoopResultBuilder]: For program point L1056(lines 1056 2882) no Hoare annotation was computed. [2021-11-25 17:53:18,670 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 35) no Hoare annotation was computed. [2021-11-25 17:53:18,670 INFO L858 garLoopResultBuilder]: For program point L1321(lines 1321 2841) no Hoare annotation was computed. [2021-11-25 17:53:18,670 INFO L858 garLoopResultBuilder]: For program point L2312(lines 2312 2689) no Hoare annotation was computed. [2021-11-25 17:53:18,670 INFO L858 garLoopResultBuilder]: For program point L2246(lines 2246 2699) no Hoare annotation was computed. [2021-11-25 17:53:18,670 INFO L858 garLoopResultBuilder]: For program point L132(lines 132 282) no Hoare annotation was computed. [2021-11-25 17:53:18,670 INFO L858 garLoopResultBuilder]: For program point L2577(lines 2577 2648) no Hoare annotation was computed. [2021-11-25 17:53:18,671 INFO L858 garLoopResultBuilder]: For program point L463(lines 463 2973) no Hoare annotation was computed. [2021-11-25 17:53:18,671 INFO L858 garLoopResultBuilder]: For program point L1454(lines 1454 2821) no Hoare annotation was computed. [2021-11-25 17:53:18,671 INFO L858 garLoopResultBuilder]: For program point L1388(lines 1388 2831) no Hoare annotation was computed. [2021-11-25 17:53:18,671 INFO L858 garLoopResultBuilder]: For program point L265(lines 265 273) no Hoare annotation was computed. [2021-11-25 17:53:18,671 INFO L858 garLoopResultBuilder]: For program point L1719(lines 1719 2780) no Hoare annotation was computed. [2021-11-25 17:53:18,671 INFO L858 garLoopResultBuilder]: For program point L596(lines 596 2953) no Hoare annotation was computed. [2021-11-25 17:53:18,671 INFO L858 garLoopResultBuilder]: For program point L530(lines 530 2963) no Hoare annotation was computed. [2021-11-25 17:53:18,671 INFO L858 garLoopResultBuilder]: For program point L1984(lines 1984 2739) no Hoare annotation was computed. [2021-11-25 17:53:18,672 INFO L858 garLoopResultBuilder]: For program point L861(lines 861 2912) no Hoare annotation was computed. [2021-11-25 17:53:18,672 INFO L858 garLoopResultBuilder]: For program point L267(line 267) no Hoare annotation was computed. [2021-11-25 17:53:18,672 INFO L858 garLoopResultBuilder]: For program point L1126(lines 1126 2871) no Hoare annotation was computed. [2021-11-25 17:53:18,672 INFO L858 garLoopResultBuilder]: For program point L2117(lines 2117 2719) no Hoare annotation was computed. [2021-11-25 17:53:18,672 INFO L858 garLoopResultBuilder]: For program point L2051(lines 2051 2729) no Hoare annotation was computed. [2021-11-25 17:53:18,672 INFO L858 garLoopResultBuilder]: For program point L2382(lines 2382 2678) no Hoare annotation was computed. [2021-11-25 17:53:18,672 INFO L858 garLoopResultBuilder]: For program point L1259(lines 1259 2851) no Hoare annotation was computed. [2021-11-25 17:53:18,672 INFO L858 garLoopResultBuilder]: For program point L1193(lines 1193 2861) no Hoare annotation was computed. [2021-11-25 17:53:18,672 INFO L858 garLoopResultBuilder]: For program point L136(lines 136 240) no Hoare annotation was computed. [2021-11-25 17:53:18,673 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION(line 219) no Hoare annotation was computed. [2021-11-25 17:53:18,673 INFO L858 garLoopResultBuilder]: For program point L1524(lines 1524 2810) no Hoare annotation was computed. [2021-11-25 17:53:18,673 INFO L858 garLoopResultBuilder]: For program point L401(lines 401 2983) no Hoare annotation was computed. [2021-11-25 17:53:18,673 INFO L858 garLoopResultBuilder]: For program point L335(lines 335 2993) no Hoare annotation was computed. [2021-11-25 17:53:18,673 INFO L858 garLoopResultBuilder]: For program point L1789(lines 1789 2769) no Hoare annotation was computed. [2021-11-25 17:53:18,673 INFO L858 garLoopResultBuilder]: For program point L666(lines 666 2942) no Hoare annotation was computed. [2021-11-25 17:53:18,673 INFO L858 garLoopResultBuilder]: For program point L931(lines 931 2901) no Hoare annotation was computed. [2021-11-25 17:53:18,673 INFO L858 garLoopResultBuilder]: For program point L1922(lines 1922 2749) no Hoare annotation was computed. [2021-11-25 17:53:18,674 INFO L858 garLoopResultBuilder]: For program point L1856(lines 1856 2759) no Hoare annotation was computed. [2021-11-25 17:53:18,674 INFO L858 garLoopResultBuilder]: For program point L205(lines 205 229) no Hoare annotation was computed. [2021-11-25 17:53:18,674 INFO L858 garLoopResultBuilder]: For program point L2187(lines 2187 2708) no Hoare annotation was computed. [2021-11-25 17:53:18,674 INFO L858 garLoopResultBuilder]: For program point L1064(lines 1064 2881) no Hoare annotation was computed. [2021-11-25 17:53:18,674 INFO L858 garLoopResultBuilder]: For program point L998(lines 998 2891) no Hoare annotation was computed. [2021-11-25 17:53:18,674 INFO L858 garLoopResultBuilder]: For program point L2452(lines 2452 2667) no Hoare annotation was computed. [2021-11-25 17:53:18,674 INFO L858 garLoopResultBuilder]: For program point L1329(lines 1329 2840) no Hoare annotation was computed. [2021-11-25 17:53:18,674 INFO L858 garLoopResultBuilder]: For program point L74(lines 74 286) no Hoare annotation was computed. [2021-11-25 17:53:18,675 INFO L858 garLoopResultBuilder]: For program point L1594(lines 1594 2799) no Hoare annotation was computed. [2021-11-25 17:53:18,675 INFO L858 garLoopResultBuilder]: For program point L2585(lines 2585 2647) no Hoare annotation was computed. [2021-11-25 17:53:18,675 INFO L858 garLoopResultBuilder]: For program point L471(lines 471 2972) no Hoare annotation was computed. [2021-11-25 17:53:18,675 INFO L858 garLoopResultBuilder]: For program point L2519(lines 2519 2657) no Hoare annotation was computed. [2021-11-25 17:53:18,675 INFO L858 garLoopResultBuilder]: For program point L207(line 207) no Hoare annotation was computed. [2021-11-25 17:53:18,675 INFO L858 garLoopResultBuilder]: For program point L736(lines 736 2931) no Hoare annotation was computed. [2021-11-25 17:53:18,676 INFO L858 garLoopResultBuilder]: For program point L1727(lines 1727 2779) no Hoare annotation was computed. [2021-11-25 17:53:18,676 INFO L858 garLoopResultBuilder]: For program point L1661(lines 1661 2789) no Hoare annotation was computed. [2021-11-25 17:53:18,676 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 76) no Hoare annotation was computed. [2021-11-25 17:53:18,676 INFO L858 garLoopResultBuilder]: For program point L76(line 76) no Hoare annotation was computed. [2021-11-25 17:53:18,676 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION(line 267) no Hoare annotation was computed. [2021-11-25 17:53:18,676 INFO L858 garLoopResultBuilder]: For program point L1992(lines 1992 2738) no Hoare annotation was computed. [2021-11-25 17:53:18,677 INFO L858 garLoopResultBuilder]: For program point L869(lines 869 2911) no Hoare annotation was computed. [2021-11-25 17:53:18,677 INFO L858 garLoopResultBuilder]: For program point L803(lines 803 2921) no Hoare annotation was computed. [2021-11-25 17:53:18,677 INFO L858 garLoopResultBuilder]: For program point L2257(lines 2257 2697) no Hoare annotation was computed. [2021-11-25 17:53:18,677 INFO L858 garLoopResultBuilder]: For program point L143(lines 143 234) no Hoare annotation was computed. [2021-11-25 17:53:18,677 INFO L858 garLoopResultBuilder]: For program point L1134(lines 1134 2870) no Hoare annotation was computed. [2021-11-25 17:53:18,677 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 105) no Hoare annotation was computed. [2021-11-25 17:53:18,677 INFO L858 garLoopResultBuilder]: For program point L1399(lines 1399 2829) no Hoare annotation was computed. [2021-11-25 17:53:18,678 INFO L858 garLoopResultBuilder]: For program point L2390(lines 2390 2677) no Hoare annotation was computed. [2021-11-25 17:53:18,678 INFO L858 garLoopResultBuilder]: For program point L2324(lines 2324 2687) no Hoare annotation was computed. [2021-11-25 17:53:18,678 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION(line 2616) no Hoare annotation was computed. [2021-11-25 17:53:18,678 INFO L858 garLoopResultBuilder]: For program point L541(lines 541 2961) no Hoare annotation was computed. [2021-11-25 17:53:18,678 INFO L858 garLoopResultBuilder]: For program point L1532(lines 1532 2809) no Hoare annotation was computed. [2021-11-25 17:53:18,678 INFO L858 garLoopResultBuilder]: For program point L1466(lines 1466 2819) no Hoare annotation was computed. [2021-11-25 17:53:18,679 INFO L858 garLoopResultBuilder]: For program point L145(line 145) no Hoare annotation was computed. [2021-11-25 17:53:18,679 INFO L858 garLoopResultBuilder]: For program point L1797(lines 1797 2768) no Hoare annotation was computed. [2021-11-25 17:53:18,679 INFO L858 garLoopResultBuilder]: For program point L674(lines 674 2941) no Hoare annotation was computed. [2021-11-25 17:53:18,679 INFO L858 garLoopResultBuilder]: For program point L608(lines 608 2951) no Hoare annotation was computed. [2021-11-25 17:53:18,679 INFO L858 garLoopResultBuilder]: For program point L2062(lines 2062 2727) no Hoare annotation was computed. [2021-11-25 17:53:18,679 INFO L858 garLoopResultBuilder]: For program point L939(lines 939 2900) no Hoare annotation was computed. [2021-11-25 17:53:18,679 INFO L858 garLoopResultBuilder]: For program point L1204(lines 1204 2859) no Hoare annotation was computed. [2021-11-25 17:53:18,680 INFO L858 garLoopResultBuilder]: For program point L2195(lines 2195 2707) no Hoare annotation was computed. [2021-11-25 17:53:18,680 INFO L858 garLoopResultBuilder]: For program point L2129(lines 2129 2717) no Hoare annotation was computed. [2021-11-25 17:53:18,680 INFO L858 garLoopResultBuilder]: For program point L2460(lines 2460 2666) no Hoare annotation was computed. [2021-11-25 17:53:18,680 INFO L858 garLoopResultBuilder]: For program point L346(lines 346 2991) no Hoare annotation was computed. [2021-11-25 17:53:18,680 INFO L858 garLoopResultBuilder]: For program point L1337(lines 1337 2839) no Hoare annotation was computed. [2021-11-25 17:53:18,680 INFO L854 garLoopResultBuilder]: At program point L280(lines 132 282) the Hoare annotation is: (and (not (= |ULTIMATE.start_main_~__VERIFIER_assert__cond~3#1| 0)) (<= 1 |ULTIMATE.start_main_~main__t~0#1|) (not (= |ULTIMATE.start_main_~__VERIFIER_assert__cond~2#1| 0)) (< |ULTIMATE.start_main_~main__t~0#1| |ULTIMATE.start_main_~main__tagbuf_len~0#1|)) [2021-11-25 17:53:18,681 INFO L858 garLoopResultBuilder]: For program point L1271(lines 1271 2849) no Hoare annotation was computed. [2021-11-25 17:53:18,681 INFO L858 garLoopResultBuilder]: For program point L1602(lines 1602 2798) no Hoare annotation was computed. [2021-11-25 17:53:18,681 INFO L858 garLoopResultBuilder]: For program point L479(lines 479 2971) no Hoare annotation was computed. [2021-11-25 17:53:18,681 INFO L858 garLoopResultBuilder]: For program point L413(lines 413 2981) no Hoare annotation was computed. [2021-11-25 17:53:18,681 INFO L858 garLoopResultBuilder]: For program point L1867(lines 1867 2757) no Hoare annotation was computed. [2021-11-25 17:53:18,681 INFO L858 garLoopResultBuilder]: For program point L744(lines 744 2930) no Hoare annotation was computed. [2021-11-25 17:53:18,682 INFO L858 garLoopResultBuilder]: For program point L1009(lines 1009 2889) no Hoare annotation was computed. [2021-11-25 17:53:18,682 INFO L858 garLoopResultBuilder]: For program point L2000(lines 2000 2737) no Hoare annotation was computed. [2021-11-25 17:53:18,682 INFO L858 garLoopResultBuilder]: For program point L1934(lines 1934 2747) no Hoare annotation was computed. [2021-11-25 17:53:18,682 INFO L858 garLoopResultBuilder]: For program point L217(lines 217 227) no Hoare annotation was computed. [2021-11-25 17:53:18,682 INFO L858 garLoopResultBuilder]: For program point L2265(lines 2265 2696) no Hoare annotation was computed. [2021-11-25 17:53:18,682 INFO L858 garLoopResultBuilder]: For program point L1142(lines 1142 2869) no Hoare annotation was computed. [2021-11-25 17:53:18,683 INFO L858 garLoopResultBuilder]: For program point L1076(lines 1076 2879) no Hoare annotation was computed. [2021-11-25 17:53:18,683 INFO L858 garLoopResultBuilder]: For program point L2530(lines 2530 2655) no Hoare annotation was computed. [2021-11-25 17:53:18,683 INFO L858 garLoopResultBuilder]: For program point L1407(lines 1407 2828) no Hoare annotation was computed. [2021-11-25 17:53:18,683 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-25 17:53:18,683 INFO L858 garLoopResultBuilder]: For program point L86(lines 86 284) no Hoare annotation was computed. [2021-11-25 17:53:18,683 INFO L858 garLoopResultBuilder]: For program point L1672(lines 1672 2787) no Hoare annotation was computed. [2021-11-25 17:53:18,683 INFO L858 garLoopResultBuilder]: For program point L549(lines 549 2960) no Hoare annotation was computed. [2021-11-25 17:53:18,684 INFO L858 garLoopResultBuilder]: For program point L219(line 219) no Hoare annotation was computed. [2021-11-25 17:53:18,684 INFO L858 garLoopResultBuilder]: For program point L21(lines 21 3007) no Hoare annotation was computed. [2021-11-25 17:53:18,684 INFO L858 garLoopResultBuilder]: For program point L814(lines 814 2919) no Hoare annotation was computed. [2021-11-25 17:53:18,684 INFO L858 garLoopResultBuilder]: For program point L1805(lines 1805 2767) no Hoare annotation was computed. [2021-11-25 17:53:18,684 INFO L858 garLoopResultBuilder]: For program point L1739(lines 1739 2777) no Hoare annotation was computed. [2021-11-25 17:53:18,684 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 145) no Hoare annotation was computed. [2021-11-25 17:53:18,685 INFO L858 garLoopResultBuilder]: For program point L88(line 88) no Hoare annotation was computed. [2021-11-25 17:53:18,685 INFO L858 garLoopResultBuilder]: For program point L2070(lines 2070 2726) no Hoare annotation was computed. [2021-11-25 17:53:18,685 INFO L858 garLoopResultBuilder]: For program point L947(lines 947 2899) no Hoare annotation was computed. [2021-11-25 17:53:18,685 INFO L858 garLoopResultBuilder]: For program point L881(lines 881 2909) no Hoare annotation was computed. [2021-11-25 17:53:18,685 INFO L858 garLoopResultBuilder]: For program point L2335(lines 2335 2685) no Hoare annotation was computed. [2021-11-25 17:53:18,685 INFO L858 garLoopResultBuilder]: For program point L1212(lines 1212 2858) no Hoare annotation was computed. [2021-11-25 17:53:18,686 INFO L858 garLoopResultBuilder]: For program point L155(lines 155 232) no Hoare annotation was computed. [2021-11-25 17:53:18,686 INFO L858 garLoopResultBuilder]: For program point L1477(lines 1477 2817) no Hoare annotation was computed. [2021-11-25 17:53:18,687 INFO L858 garLoopResultBuilder]: For program point L2468(lines 2468 2665) no Hoare annotation was computed. [2021-11-25 17:53:18,687 INFO L858 garLoopResultBuilder]: For program point L2402(lines 2402 2675) no Hoare annotation was computed. [2021-11-25 17:53:18,687 INFO L858 garLoopResultBuilder]: For program point L354(lines 354 2990) no Hoare annotation was computed. [2021-11-25 17:53:18,687 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION(line 173) no Hoare annotation was computed. [2021-11-25 17:53:18,688 INFO L858 garLoopResultBuilder]: For program point L619(lines 619 2949) no Hoare annotation was computed. [2021-11-25 17:53:18,688 INFO L858 garLoopResultBuilder]: For program point L1610(lines 1610 2797) no Hoare annotation was computed. [2021-11-25 17:53:18,689 INFO L858 garLoopResultBuilder]: For program point L1544(lines 1544 2807) no Hoare annotation was computed. [2021-11-25 17:53:18,690 INFO L858 garLoopResultBuilder]: For program point L157(line 157) no Hoare annotation was computed. [2021-11-25 17:53:18,690 INFO L858 garLoopResultBuilder]: For program point L25(lines 25 3002) no Hoare annotation was computed. [2021-11-25 17:53:18,690 INFO L858 garLoopResultBuilder]: For program point L1875(lines 1875 2756) no Hoare annotation was computed. [2021-11-25 17:53:18,690 INFO L858 garLoopResultBuilder]: For program point L752(lines 752 2929) no Hoare annotation was computed. [2021-11-25 17:53:18,690 INFO L858 garLoopResultBuilder]: For program point L686(lines 686 2939) no Hoare annotation was computed. [2021-11-25 17:53:18,690 INFO L858 garLoopResultBuilder]: For program point L2602(lines 2602 2645) no Hoare annotation was computed. [2021-11-25 17:53:18,691 INFO L858 garLoopResultBuilder]: For program point L2140(lines 2140 2715) no Hoare annotation was computed. [2021-11-25 17:53:18,691 INFO L858 garLoopResultBuilder]: For program point L1017(lines 1017 2888) no Hoare annotation was computed. [2021-11-25 17:53:18,691 INFO L858 garLoopResultBuilder]: For program point L1282(lines 1282 2847) no Hoare annotation was computed. [2021-11-25 17:53:18,691 INFO L858 garLoopResultBuilder]: For program point L2273(lines 2273 2695) no Hoare annotation was computed. [2021-11-25 17:53:18,691 INFO L858 garLoopResultBuilder]: For program point L2207(lines 2207 2705) no Hoare annotation was computed. [2021-11-25 17:53:18,691 INFO L858 garLoopResultBuilder]: For program point L2604(line 2604) no Hoare annotation was computed. [2021-11-25 17:53:18,692 INFO L858 garLoopResultBuilder]: For program point L2538(lines 2538 2654) no Hoare annotation was computed. [2021-11-25 17:53:18,692 INFO L858 garLoopResultBuilder]: For program point L424(lines 424 2979) no Hoare annotation was computed. [2021-11-25 17:53:18,692 INFO L858 garLoopResultBuilder]: For program point L1415(lines 1415 2827) no Hoare annotation was computed. [2021-11-25 17:53:18,692 INFO L858 garLoopResultBuilder]: For program point L1349(lines 1349 2837) no Hoare annotation was computed. [2021-11-25 17:53:18,692 INFO L854 garLoopResultBuilder]: At program point L226(lines 92 284) the Hoare annotation is: (and (not (= |ULTIMATE.start_main_~__VERIFIER_assert__cond~3#1| 0)) (<= 1 |ULTIMATE.start_main_~main__t~0#1|) (not (= |ULTIMATE.start_main_~__VERIFIER_assert__cond~2#1| 0)) (<= |ULTIMATE.start_main_~main__t~0#1| |ULTIMATE.start_main_~main__tagbuf_len~0#1|)) [2021-11-25 17:53:18,692 INFO L858 garLoopResultBuilder]: For program point L1680(lines 1680 2786) no Hoare annotation was computed. [2021-11-25 17:53:18,693 INFO L858 garLoopResultBuilder]: For program point L557(lines 557 2959) no Hoare annotation was computed. [2021-11-25 17:53:18,693 INFO L858 garLoopResultBuilder]: For program point L491(lines 491 2969) no Hoare annotation was computed. [2021-11-25 17:53:18,693 INFO L858 garLoopResultBuilder]: For program point L1945(lines 1945 2745) no Hoare annotation was computed. [2021-11-25 17:53:18,693 INFO L858 garLoopResultBuilder]: For program point L822(lines 822 2918) no Hoare annotation was computed. [2021-11-25 17:53:18,693 INFO L858 garLoopResultBuilder]: For program point L1087(lines 1087 2877) no Hoare annotation was computed. [2021-11-25 17:53:18,693 INFO L858 garLoopResultBuilder]: For program point L2078(lines 2078 2725) no Hoare annotation was computed. [2021-11-25 17:53:18,693 INFO L858 garLoopResultBuilder]: For program point L2012(lines 2012 2735) no Hoare annotation was computed. [2021-11-25 17:53:18,694 INFO L858 garLoopResultBuilder]: For program point L2343(lines 2343 2684) no Hoare annotation was computed. [2021-11-25 17:53:18,694 INFO L858 garLoopResultBuilder]: For program point L1220(lines 1220 2857) no Hoare annotation was computed. [2021-11-25 17:53:18,694 INFO L858 garLoopResultBuilder]: For program point L1154(lines 1154 2867) no Hoare annotation was computed. [2021-11-25 17:53:18,694 INFO L858 garLoopResultBuilder]: For program point L1485(lines 1485 2816) no Hoare annotation was computed. [2021-11-25 17:53:18,694 INFO L858 garLoopResultBuilder]: For program point L362(lines 362 2989) no Hoare annotation was computed. [2021-11-25 17:53:18,694 INFO L858 garLoopResultBuilder]: For program point L296(lines 296 2999) no Hoare annotation was computed. [2021-11-25 17:53:18,695 INFO L858 garLoopResultBuilder]: For program point L164(lines 164 231) no Hoare annotation was computed. [2021-11-25 17:53:18,695 INFO L858 garLoopResultBuilder]: For program point L1750(lines 1750 2775) no Hoare annotation was computed. [2021-11-25 17:53:18,695 INFO L858 garLoopResultBuilder]: For program point L627(lines 627 2948) no Hoare annotation was computed. [2021-11-25 17:53:18,695 INFO L858 garLoopResultBuilder]: For program point L33(lines 33 57) no Hoare annotation was computed. [2021-11-25 17:53:18,695 INFO L861 garLoopResultBuilder]: At program point L3006(lines 21 3007) the Hoare annotation is: true [2021-11-25 17:53:18,695 INFO L858 garLoopResultBuilder]: For program point L892(lines 892 2907) no Hoare annotation was computed. [2021-11-25 17:53:18,695 INFO L858 garLoopResultBuilder]: For program point L1883(lines 1883 2755) no Hoare annotation was computed. [2021-11-25 17:53:18,696 INFO L858 garLoopResultBuilder]: For program point L1817(lines 1817 2765) no Hoare annotation was computed. [2021-11-25 17:53:18,696 INFO L858 garLoopResultBuilder]: For program point L2148(lines 2148 2714) no Hoare annotation was computed. [2021-11-25 17:53:18,696 INFO L858 garLoopResultBuilder]: For program point L1025(lines 1025 2887) no Hoare annotation was computed. [2021-11-25 17:53:18,696 INFO L858 garLoopResultBuilder]: For program point L959(lines 959 2897) no Hoare annotation was computed. [2021-11-25 17:53:18,696 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION(line 207) no Hoare annotation was computed. [2021-11-25 17:53:18,696 INFO L858 garLoopResultBuilder]: For program point L2413(lines 2413 2673) no Hoare annotation was computed. [2021-11-25 17:53:18,697 INFO L858 garLoopResultBuilder]: For program point L1290(lines 1290 2846) no Hoare annotation was computed. [2021-11-25 17:53:18,697 INFO L858 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2021-11-25 17:53:18,703 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 17:53:18,705 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-25 17:53:18,722 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 05:53:18 BoogieIcfgContainer [2021-11-25 17:53:18,722 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-25 17:53:18,723 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-25 17:53:18,723 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-25 17:53:18,723 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-25 17:53:18,723 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:53:02" (3/4) ... [2021-11-25 17:53:18,726 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-25 17:53:18,760 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-11-25 17:53:18,763 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-25 17:53:18,767 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-25 17:53:18,770 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-25 17:53:18,990 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864fcaa9-41a2-4fb4-a35d-d558569ce55c/bin/utaipan-eEHZpOm5b7/witness.graphml [2021-11-25 17:53:18,991 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-25 17:53:18,991 INFO L158 Benchmark]: Toolchain (without parser) took 19050.39ms. Allocated memory was 92.3MB in the beginning and 274.7MB in the end (delta: 182.5MB). Free memory was 59.3MB in the beginning and 111.3MB in the end (delta: -52.0MB). Peak memory consumption was 131.3MB. Max. memory is 16.1GB. [2021-11-25 17:53:18,992 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 92.3MB. Free memory was 62.0MB in the beginning and 61.9MB in the end (delta: 26.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 17:53:18,996 INFO L158 Benchmark]: CACSL2BoogieTranslator took 918.55ms. Allocated memory was 92.3MB in the beginning and 136.3MB in the end (delta: 44.0MB). Free memory was 59.1MB in the beginning and 83.3MB in the end (delta: -24.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2021-11-25 17:53:18,997 INFO L158 Benchmark]: Boogie Procedure Inliner took 131.12ms. Allocated memory is still 136.3MB. Free memory was 83.3MB in the beginning and 77.0MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-25 17:53:18,997 INFO L158 Benchmark]: Boogie Preprocessor took 96.53ms. Allocated memory is still 136.3MB. Free memory was 77.0MB in the beginning and 71.9MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-25 17:53:18,998 INFO L158 Benchmark]: RCFGBuilder took 1366.44ms. Allocated memory is still 136.3MB. Free memory was 71.9MB in the beginning and 70.0MB in the end (delta: 1.9MB). Peak memory consumption was 46.9MB. Max. memory is 16.1GB. [2021-11-25 17:53:18,998 INFO L158 Benchmark]: TraceAbstraction took 16262.27ms. Allocated memory was 136.3MB in the beginning and 274.7MB in the end (delta: 138.4MB). Free memory was 70.0MB in the beginning and 141.7MB in the end (delta: -71.8MB). Peak memory consumption was 142.8MB. Max. memory is 16.1GB. [2021-11-25 17:53:18,998 INFO L158 Benchmark]: Witness Printer took 268.31ms. Allocated memory is still 274.7MB. Free memory was 141.7MB in the beginning and 111.3MB in the end (delta: 30.4MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2021-11-25 17:53:19,011 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 92.3MB. Free memory was 62.0MB in the beginning and 61.9MB in the end (delta: 26.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 918.55ms. Allocated memory was 92.3MB in the beginning and 136.3MB in the end (delta: 44.0MB). Free memory was 59.1MB in the beginning and 83.3MB in the end (delta: -24.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 131.12ms. Allocated memory is still 136.3MB. Free memory was 83.3MB in the beginning and 77.0MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 96.53ms. Allocated memory is still 136.3MB. Free memory was 77.0MB in the beginning and 71.9MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1366.44ms. Allocated memory is still 136.3MB. Free memory was 71.9MB in the beginning and 70.0MB in the end (delta: 1.9MB). Peak memory consumption was 46.9MB. Max. memory is 16.1GB. * TraceAbstraction took 16262.27ms. Allocated memory was 136.3MB in the beginning and 274.7MB in the end (delta: 138.4MB). Free memory was 70.0MB in the beginning and 141.7MB in the end (delta: -71.8MB). Peak memory consumption was 142.8MB. Max. memory is 16.1GB. * Witness Printer took 268.31ms. Allocated memory is still 274.7MB. Free memory was 141.7MB in the beginning and 111.3MB in the end (delta: 30.4MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 35]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 47]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 76]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 88]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 105]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 117]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 145]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 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: 185]: 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: 219]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 255]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 267]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 2604]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 2616]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 302 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 16.2s, OverallIterations: 21, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 9.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.9s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5871 SdHoareTripleChecker+Valid, 8.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5871 mSDsluCounter, 9323 SdHoareTripleChecker+Invalid, 7.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5360 mSDsCounter, 1414 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13111 IncrementalHoareTripleChecker+Invalid, 14525 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1414 mSolverCounterUnsat, 3966 mSDtfsCounter, 13111 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 317 GetRequests, 161 SyntacticMatches, 1 SemanticMatches, 155 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=302occurred in iteration=0, InterpolantAutomatonStates: 169, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 21 MinimizatonAttempts, 150 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 18 NumberOfFragments, 61 HoareAnnotationTreeSize, 7 FomulaSimplifications, 2017 FormulaSimplificationTreeSizeReduction, 1.7s HoareSimplificationTime, 7 FomulaSimplificationsInter, 14547 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 3.3s InterpolantComputationTime, 723 NumberOfCodeBlocks, 723 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 702 ConstructedInterpolants, 0 QuantifiedInterpolants, 2512 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 21 InterpolantComputations, 21 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 16 specifications checked. All of them hold - InvariantResult [Line: 92]: Loop Invariant Derived loop invariant: ((!(__VERIFIER_assert__cond == 0) && 1 <= main__t) && !(__VERIFIER_assert__cond == 0)) && main__t <= main__tagbuf_len - InvariantResult [Line: 132]: Loop Invariant Derived loop invariant: ((!(__VERIFIER_assert__cond == 0) && 1 <= main__t) && !(__VERIFIER_assert__cond == 0)) && main__t < main__tagbuf_len - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: 0 <= main__t && main__t <= main__tagbuf_len - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: (main__t == 0 && main__t < main__tagbuf_len) || (1 <= main__t && main__t < main__tagbuf_len) - InvariantResult [Line: 2591]: Loop Invariant Derived loop invariant: main__t < main__tagbuf_len && 59 <= main__t RESULT: Ultimate proved your program to be correct! [2021-11-25 17:53:19,079 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_864fcaa9-41a2-4fb4-a35d-d558569ce55c/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE