./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ead63e1-c611-4f10-9b4d-24eb3c3494f3/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ead63e1-c611-4f10-9b4d-24eb3c3494f3/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ead63e1-c611-4f10-9b4d-24eb3c3494f3/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ead63e1-c611-4f10-9b4d-24eb3c3494f3/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ead63e1-c611-4f10-9b4d-24eb3c3494f3/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ead63e1-c611-4f10-9b4d-24eb3c3494f3/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 876148c876cf7c1b78d2f058097c1ea19d5931075241b9f9a3c243e2bacc58fd --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 12:09:35,199 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:09:35,202 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:09:35,241 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:09:35,242 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:09:35,247 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:09:35,250 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:09:35,255 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:09:35,258 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:09:35,265 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:09:35,267 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:09:35,270 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:09:35,270 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:09:35,275 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:09:35,276 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:09:35,278 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:09:35,279 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:09:35,280 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:09:35,281 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:09:35,284 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:09:35,285 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:09:35,291 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:09:35,296 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:09:35,298 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:09:35,311 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:09:35,312 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:09:35,312 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:09:35,313 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:09:35,314 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:09:35,315 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:09:35,315 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:09:35,316 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:09:35,317 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:09:35,318 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:09:35,326 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:09:35,328 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:09:35,329 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:09:35,329 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:09:35,329 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:09:35,330 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:09:35,331 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:09:35,332 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ead63e1-c611-4f10-9b4d-24eb3c3494f3/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-16 12:09:35,383 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:09:35,384 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:09:35,384 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:09:35,384 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:09:35,385 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:09:35,385 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:09:35,386 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:09:35,386 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:09:35,389 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:09:35,390 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:09:35,391 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:09:35,391 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:09:35,392 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:09:35,392 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:09:35,392 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:09:35,392 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:09:35,392 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:09:35,393 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:09:35,393 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:09:35,393 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:09:35,393 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:09:35,394 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:09:35,394 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:09:35,394 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:09:35,395 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:09:35,395 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:09:35,397 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:09:35,397 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:09:35,397 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:09:35,397 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:09:35,398 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:09:35,398 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:09:35,398 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:09:35,399 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ead63e1-c611-4f10-9b4d-24eb3c3494f3/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ead63e1-c611-4f10-9b4d-24eb3c3494f3/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 876148c876cf7c1b78d2f058097c1ea19d5931075241b9f9a3c243e2bacc58fd [2022-11-16 12:09:35,740 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:09:35,772 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:09:35,775 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:09:35,776 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:09:35,777 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:09:35,778 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ead63e1-c611-4f10-9b4d-24eb3c3494f3/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2022-11-16 12:09:35,864 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ead63e1-c611-4f10-9b4d-24eb3c3494f3/bin/uautomizer-tPACEb0tL8/data/de4d40e86/ec0657efcd2847a18c8b65306a7b8230/FLAG41ef44cdb [2022-11-16 12:09:36,677 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:09:36,678 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ead63e1-c611-4f10-9b4d-24eb3c3494f3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2022-11-16 12:09:36,706 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ead63e1-c611-4f10-9b4d-24eb3c3494f3/bin/uautomizer-tPACEb0tL8/data/de4d40e86/ec0657efcd2847a18c8b65306a7b8230/FLAG41ef44cdb [2022-11-16 12:09:36,848 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ead63e1-c611-4f10-9b4d-24eb3c3494f3/bin/uautomizer-tPACEb0tL8/data/de4d40e86/ec0657efcd2847a18c8b65306a7b8230 [2022-11-16 12:09:36,850 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:09:36,852 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:09:36,854 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:09:36,854 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:09:36,858 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:09:36,859 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:09:36" (1/1) ... [2022-11-16 12:09:36,860 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76119fe9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:09:36, skipping insertion in model container [2022-11-16 12:09:36,860 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:09:36" (1/1) ... [2022-11-16 12:09:36,868 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:09:37,011 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:09:37,384 WARN L229 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_2ead63e1-c611-4f10-9b4d-24eb3c3494f3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[10927,10940] [2022-11-16 12:09:37,410 WARN L229 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_2ead63e1-c611-4f10-9b4d-24eb3c3494f3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[14764,14777] [2022-11-16 12:09:37,421 WARN L229 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_2ead63e1-c611-4f10-9b4d-24eb3c3494f3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[15985,15998] [2022-11-16 12:09:37,428 WARN L229 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_2ead63e1-c611-4f10-9b4d-24eb3c3494f3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[16691,16704] [2022-11-16 12:09:37,440 WARN L229 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_2ead63e1-c611-4f10-9b4d-24eb3c3494f3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[18235,18248] [2022-11-16 12:09:37,447 WARN L229 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_2ead63e1-c611-4f10-9b4d-24eb3c3494f3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[18941,18954] [2022-11-16 12:09:37,457 WARN L229 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_2ead63e1-c611-4f10-9b4d-24eb3c3494f3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[19970,19983] [2022-11-16 12:09:37,476 WARN L229 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_2ead63e1-c611-4f10-9b4d-24eb3c3494f3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[22376,22389] [2022-11-16 12:09:37,483 WARN L229 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_2ead63e1-c611-4f10-9b4d-24eb3c3494f3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[23085,23098] [2022-11-16 12:09:37,495 WARN L229 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_2ead63e1-c611-4f10-9b4d-24eb3c3494f3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[24122,24135] [2022-11-16 12:09:37,515 WARN L229 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_2ead63e1-c611-4f10-9b4d-24eb3c3494f3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[26018,26031] [2022-11-16 12:09:37,550 WARN L229 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_2ead63e1-c611-4f10-9b4d-24eb3c3494f3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[29926,29939] [2022-11-16 12:09:37,557 WARN L229 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_2ead63e1-c611-4f10-9b4d-24eb3c3494f3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[30635,30648] [2022-11-16 12:09:37,564 WARN L229 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_2ead63e1-c611-4f10-9b4d-24eb3c3494f3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[31667,31680] [2022-11-16 12:09:37,575 WARN L229 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_2ead63e1-c611-4f10-9b4d-24eb3c3494f3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[33558,33571] [2022-11-16 12:09:37,593 WARN L229 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_2ead63e1-c611-4f10-9b4d-24eb3c3494f3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[36771,36784] [2022-11-16 12:09:37,766 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:09:37,777 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:09:37,890 WARN L229 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_2ead63e1-c611-4f10-9b4d-24eb3c3494f3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[10927,10940] [2022-11-16 12:09:37,918 WARN L229 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_2ead63e1-c611-4f10-9b4d-24eb3c3494f3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[14764,14777] [2022-11-16 12:09:37,929 WARN L229 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_2ead63e1-c611-4f10-9b4d-24eb3c3494f3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[15985,15998] [2022-11-16 12:09:37,938 WARN L229 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_2ead63e1-c611-4f10-9b4d-24eb3c3494f3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[16691,16704] [2022-11-16 12:09:37,968 WARN L229 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_2ead63e1-c611-4f10-9b4d-24eb3c3494f3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[18235,18248] [2022-11-16 12:09:37,977 WARN L229 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_2ead63e1-c611-4f10-9b4d-24eb3c3494f3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[18941,18954] [2022-11-16 12:09:37,987 WARN L229 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_2ead63e1-c611-4f10-9b4d-24eb3c3494f3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[19970,19983] [2022-11-16 12:09:38,044 WARN L229 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_2ead63e1-c611-4f10-9b4d-24eb3c3494f3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[22376,22389] [2022-11-16 12:09:38,053 WARN L229 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_2ead63e1-c611-4f10-9b4d-24eb3c3494f3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[23085,23098] [2022-11-16 12:09:38,065 WARN L229 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_2ead63e1-c611-4f10-9b4d-24eb3c3494f3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[24122,24135] [2022-11-16 12:09:38,086 WARN L229 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_2ead63e1-c611-4f10-9b4d-24eb3c3494f3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[26018,26031] [2022-11-16 12:09:38,123 WARN L229 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_2ead63e1-c611-4f10-9b4d-24eb3c3494f3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[29926,29939] [2022-11-16 12:09:38,131 WARN L229 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_2ead63e1-c611-4f10-9b4d-24eb3c3494f3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[30635,30648] [2022-11-16 12:09:38,141 WARN L229 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_2ead63e1-c611-4f10-9b4d-24eb3c3494f3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[31667,31680] [2022-11-16 12:09:38,158 WARN L229 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_2ead63e1-c611-4f10-9b4d-24eb3c3494f3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[33558,33571] [2022-11-16 12:09:38,187 WARN L229 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_2ead63e1-c611-4f10-9b4d-24eb3c3494f3/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[36771,36784] [2022-11-16 12:09:38,355 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:09:38,382 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:09:38,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:09:38 WrapperNode [2022-11-16 12:09:38,382 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:09:38,384 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:09:38,384 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:09:38,384 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:09:38,394 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:09:38" (1/1) ... [2022-11-16 12:09:38,421 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:09:38" (1/1) ... [2022-11-16 12:09:38,504 INFO L138 Inliner]: procedures = 25, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 3340 [2022-11-16 12:09:38,504 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:09:38,505 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:09:38,505 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:09:38,506 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:09:38,518 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:09:38" (1/1) ... [2022-11-16 12:09:38,518 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:09:38" (1/1) ... [2022-11-16 12:09:38,532 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:09:38" (1/1) ... [2022-11-16 12:09:38,537 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:09:38" (1/1) ... [2022-11-16 12:09:38,575 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:09:38" (1/1) ... [2022-11-16 12:09:38,597 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:09:38" (1/1) ... [2022-11-16 12:09:38,615 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:09:38" (1/1) ... [2022-11-16 12:09:38,630 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:09:38" (1/1) ... [2022-11-16 12:09:38,647 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:09:38,655 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:09:38,655 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:09:38,656 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:09:38,657 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:09:38" (1/1) ... [2022-11-16 12:09:38,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:09:38,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ead63e1-c611-4f10-9b4d-24eb3c3494f3/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:09:38,692 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ead63e1-c611-4f10-9b4d-24eb3c3494f3/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:09:38,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ead63e1-c611-4f10-9b4d-24eb3c3494f3/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:09:38,751 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:09:38,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:09:38,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:09:38,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:09:39,090 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:09:39,092 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:09:41,416 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:09:41,441 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:09:41,441 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 12:09:41,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:09:41 BoogieIcfgContainer [2022-11-16 12:09:41,447 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:09:41,451 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:09:41,451 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:09:41,455 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:09:41,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:09:36" (1/3) ... [2022-11-16 12:09:41,458 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52756a11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:09:41, skipping insertion in model container [2022-11-16 12:09:41,458 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:09:38" (2/3) ... [2022-11-16 12:09:41,459 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52756a11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:09:41, skipping insertion in model container [2022-11-16 12:09:41,459 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:09:41" (3/3) ... [2022-11-16 12:09:41,461 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2022-11-16 12:09:41,492 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:09:41,492 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2022-11-16 12:09:41,587 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:09:41,599 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@230e98e2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:09:41,600 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2022-11-16 12:09:41,607 INFO L276 IsEmpty]: Start isEmpty. Operand has 626 states, 609 states have (on average 1.8505747126436782) internal successors, (1127), 625 states have internal predecessors, (1127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:09:41,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-16 12:09:41,628 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:09:41,629 INFO L195 NwaCegarLoop]: 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] [2022-11-16 12:09:41,630 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-16 12:09:41,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:09:41,637 INFO L85 PathProgramCache]: Analyzing trace with hash -50607350, now seen corresponding path program 1 times [2022-11-16 12:09:41,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:09:41,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280601340] [2022-11-16 12:09:41,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:09:41,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:09:41,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:42,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:09:42,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:09:42,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280601340] [2022-11-16 12:09:42,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280601340] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:09:42,323 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:09:42,323 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 12:09:42,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692728481] [2022-11-16 12:09:42,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:09:42,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:09:42,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:09:42,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:09:42,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:09:42,372 INFO L87 Difference]: Start difference. First operand has 626 states, 609 states have (on average 1.8505747126436782) internal successors, (1127), 625 states have internal predecessors, (1127), 0 states have call successors, (0), 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 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:09:43,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:09:43,077 INFO L93 Difference]: Finished difference Result 971 states and 1686 transitions. [2022-11-16 12:09:43,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:09:43,080 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 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 71 [2022-11-16 12:09:43,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:09:43,108 INFO L225 Difference]: With dead ends: 971 [2022-11-16 12:09:43,112 INFO L226 Difference]: Without dead ends: 498 [2022-11-16 12:09:43,122 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:09:43,127 INFO L413 NwaCegarLoop]: 589 mSDtfsCounter, 2526 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2526 SdHoareTripleChecker+Valid, 603 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-16 12:09:43,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2526 Valid, 603 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-16 12:09:43,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2022-11-16 12:09:43,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 498. [2022-11-16 12:09:43,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 498 states, 482 states have (on average 1.3112033195020747) internal successors, (632), 497 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:09:43,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 498 states and 632 transitions. [2022-11-16 12:09:43,212 INFO L78 Accepts]: Start accepts. Automaton has 498 states and 632 transitions. Word has length 71 [2022-11-16 12:09:43,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:09:43,213 INFO L495 AbstractCegarLoop]: Abstraction has 498 states and 632 transitions. [2022-11-16 12:09:43,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:09:43,213 INFO L276 IsEmpty]: Start isEmpty. Operand 498 states and 632 transitions. [2022-11-16 12:09:43,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-11-16 12:09:43,217 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:09:43,218 INFO L195 NwaCegarLoop]: 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] [2022-11-16 12:09:43,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 12:09:43,218 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-16 12:09:43,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:09:43,219 INFO L85 PathProgramCache]: Analyzing trace with hash -329897172, now seen corresponding path program 1 times [2022-11-16 12:09:43,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:09:43,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431070891] [2022-11-16 12:09:43,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:09:43,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:09:43,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:43,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:09:43,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:09:43,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431070891] [2022-11-16 12:09:43,470 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431070891] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:09:43,470 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:09:43,471 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 12:09:43,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963151209] [2022-11-16 12:09:43,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:09:43,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:09:43,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:09:43,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:09:43,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:09:43,474 INFO L87 Difference]: Start difference. First operand 498 states and 632 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:09:44,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:09:44,034 INFO L93 Difference]: Finished difference Result 834 states and 1087 transitions. [2022-11-16 12:09:44,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:09:44,035 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 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 72 [2022-11-16 12:09:44,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:09:44,038 INFO L225 Difference]: With dead ends: 834 [2022-11-16 12:09:44,038 INFO L226 Difference]: Without dead ends: 458 [2022-11-16 12:09:44,039 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:09:44,042 INFO L413 NwaCegarLoop]: 292 mSDtfsCounter, 1648 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1648 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-16 12:09:44,047 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1648 Valid, 328 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-16 12:09:44,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2022-11-16 12:09:44,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 458. [2022-11-16 12:09:44,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 458 states, 442 states have (on average 1.3190045248868778) internal successors, (583), 457 states have internal predecessors, (583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:09:44,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 583 transitions. [2022-11-16 12:09:44,117 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 583 transitions. Word has length 72 [2022-11-16 12:09:44,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:09:44,118 INFO L495 AbstractCegarLoop]: Abstraction has 458 states and 583 transitions. [2022-11-16 12:09:44,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:09:44,118 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 583 transitions. [2022-11-16 12:09:44,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-11-16 12:09:44,122 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:09:44,122 INFO L195 NwaCegarLoop]: 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] [2022-11-16 12:09:44,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 12:09:44,124 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-16 12:09:44,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:09:44,125 INFO L85 PathProgramCache]: Analyzing trace with hash -1203518485, now seen corresponding path program 1 times [2022-11-16 12:09:44,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:09:44,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134609902] [2022-11-16 12:09:44,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:09:44,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:09:44,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:44,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:09:44,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:09:44,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134609902] [2022-11-16 12:09:44,428 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134609902] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:09:44,428 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:09:44,428 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 12:09:44,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072889160] [2022-11-16 12:09:44,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:09:44,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:09:44,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:09:44,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:09:44,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:09:44,430 INFO L87 Difference]: Start difference. First operand 458 states and 583 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:09:44,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:09:44,894 INFO L93 Difference]: Finished difference Result 794 states and 1037 transitions. [2022-11-16 12:09:44,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:09:44,895 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 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 73 [2022-11-16 12:09:44,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:09:44,899 INFO L225 Difference]: With dead ends: 794 [2022-11-16 12:09:44,899 INFO L226 Difference]: Without dead ends: 426 [2022-11-16 12:09:44,900 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:09:44,904 INFO L413 NwaCegarLoop]: 294 mSDtfsCounter, 1555 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1555 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 12:09:44,908 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1555 Valid, 322 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 12:09:44,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2022-11-16 12:09:44,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 426. [2022-11-16 12:09:44,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 426 states, 410 states have (on average 1.3317073170731708) internal successors, (546), 425 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:09:44,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 546 transitions. [2022-11-16 12:09:44,949 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 546 transitions. Word has length 73 [2022-11-16 12:09:44,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:09:44,949 INFO L495 AbstractCegarLoop]: Abstraction has 426 states and 546 transitions. [2022-11-16 12:09:44,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:09:44,954 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 546 transitions. [2022-11-16 12:09:44,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-11-16 12:09:44,959 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:09:44,959 INFO L195 NwaCegarLoop]: 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] [2022-11-16 12:09:44,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 12:09:44,960 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-16 12:09:44,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:09:44,961 INFO L85 PathProgramCache]: Analyzing trace with hash -2052061875, now seen corresponding path program 1 times [2022-11-16 12:09:44,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:09:44,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776003152] [2022-11-16 12:09:44,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:09:44,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:09:45,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:45,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:09:45,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:09:45,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776003152] [2022-11-16 12:09:45,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776003152] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:09:45,264 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:09:45,264 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 12:09:45,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033351057] [2022-11-16 12:09:45,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:09:45,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:09:45,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:09:45,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:09:45,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:09:45,272 INFO L87 Difference]: Start difference. First operand 426 states and 546 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:09:45,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:09:45,693 INFO L93 Difference]: Finished difference Result 762 states and 999 transitions. [2022-11-16 12:09:45,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:09:45,694 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2022-11-16 12:09:45,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:09:45,698 INFO L225 Difference]: With dead ends: 762 [2022-11-16 12:09:45,698 INFO L226 Difference]: Without dead ends: 401 [2022-11-16 12:09:45,700 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:09:45,703 INFO L413 NwaCegarLoop]: 297 mSDtfsCounter, 1497 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1497 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 12:09:45,705 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1497 Valid, 309 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 12:09:45,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2022-11-16 12:09:45,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 401. [2022-11-16 12:09:45,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 385 states have (on average 1.3454545454545455) internal successors, (518), 400 states have internal predecessors, (518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:09:45,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 518 transitions. [2022-11-16 12:09:45,750 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 518 transitions. Word has length 74 [2022-11-16 12:09:45,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:09:45,753 INFO L495 AbstractCegarLoop]: Abstraction has 401 states and 518 transitions. [2022-11-16 12:09:45,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:09:45,754 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 518 transitions. [2022-11-16 12:09:45,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-16 12:09:45,755 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:09:45,756 INFO L195 NwaCegarLoop]: 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] [2022-11-16 12:09:45,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 12:09:45,757 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-16 12:09:45,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:09:45,758 INFO L85 PathProgramCache]: Analyzing trace with hash -1326375668, now seen corresponding path program 1 times [2022-11-16 12:09:45,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:09:45,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452727492] [2022-11-16 12:09:45,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:09:45,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:09:45,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:45,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:09:45,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:09:45,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452727492] [2022-11-16 12:09:45,957 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452727492] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:09:45,958 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:09:45,958 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 12:09:45,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961310190] [2022-11-16 12:09:45,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:09:45,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:09:45,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:09:45,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:09:45,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:09:45,960 INFO L87 Difference]: Start difference. First operand 401 states and 518 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:09:46,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:09:46,400 INFO L93 Difference]: Finished difference Result 737 states and 970 transitions. [2022-11-16 12:09:46,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:09:46,400 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 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 75 [2022-11-16 12:09:46,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:09:46,402 INFO L225 Difference]: With dead ends: 737 [2022-11-16 12:09:46,402 INFO L226 Difference]: Without dead ends: 390 [2022-11-16 12:09:46,403 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:09:46,404 INFO L413 NwaCegarLoop]: 284 mSDtfsCounter, 1445 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1445 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 12:09:46,405 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1445 Valid, 304 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 12:09:46,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2022-11-16 12:09:46,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 390. [2022-11-16 12:09:46,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 374 states have (on average 1.3502673796791445) internal successors, (505), 389 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:09:46,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 505 transitions. [2022-11-16 12:09:46,439 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 505 transitions. Word has length 75 [2022-11-16 12:09:46,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:09:46,440 INFO L495 AbstractCegarLoop]: Abstraction has 390 states and 505 transitions. [2022-11-16 12:09:46,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:09:46,440 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 505 transitions. [2022-11-16 12:09:46,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-11-16 12:09:46,442 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:09:46,442 INFO L195 NwaCegarLoop]: 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] [2022-11-16 12:09:46,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 12:09:46,443 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-16 12:09:46,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:09:46,444 INFO L85 PathProgramCache]: Analyzing trace with hash -976633234, now seen corresponding path program 1 times [2022-11-16 12:09:46,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:09:46,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593602349] [2022-11-16 12:09:46,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:09:46,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:09:46,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:46,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:09:46,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:09:46,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593602349] [2022-11-16 12:09:46,966 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593602349] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:09:46,966 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:09:46,966 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:09:46,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698571595] [2022-11-16 12:09:46,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:09:46,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:09:46,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:09:46,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:09:46,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:09:46,970 INFO L87 Difference]: Start difference. First operand 390 states and 505 transitions. Second operand has 8 states, 8 states have (on average 9.5) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:09:47,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:09:47,894 INFO L93 Difference]: Finished difference Result 754 states and 962 transitions. [2022-11-16 12:09:47,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 12:09:47,895 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2022-11-16 12:09:47,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:09:47,899 INFO L225 Difference]: With dead ends: 754 [2022-11-16 12:09:47,899 INFO L226 Difference]: Without dead ends: 542 [2022-11-16 12:09:47,900 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2022-11-16 12:09:47,902 INFO L413 NwaCegarLoop]: 259 mSDtfsCounter, 2236 mSDsluCounter, 546 mSDsCounter, 0 mSdLazyCounter, 672 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2236 SdHoareTripleChecker+Valid, 805 SdHoareTripleChecker+Invalid, 675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 672 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-16 12:09:47,903 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2236 Valid, 805 Invalid, 675 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 672 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-16 12:09:47,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2022-11-16 12:09:47,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 390. [2022-11-16 12:09:47,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 374 states have (on average 1.3475935828877006) internal successors, (504), 389 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:09:47,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 504 transitions. [2022-11-16 12:09:47,969 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 504 transitions. Word has length 76 [2022-11-16 12:09:47,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:09:47,970 INFO L495 AbstractCegarLoop]: Abstraction has 390 states and 504 transitions. [2022-11-16 12:09:47,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.5) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:09:47,971 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 504 transitions. [2022-11-16 12:09:47,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-11-16 12:09:47,979 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:09:47,979 INFO L195 NwaCegarLoop]: 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] [2022-11-16 12:09:47,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 12:09:47,980 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-16 12:09:47,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:09:47,981 INFO L85 PathProgramCache]: Analyzing trace with hash 649885335, now seen corresponding path program 1 times [2022-11-16 12:09:47,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:09:47,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555536760] [2022-11-16 12:09:47,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:09:47,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:09:48,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:48,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:09:48,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:09:48,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555536760] [2022-11-16 12:09:48,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [555536760] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:09:48,641 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:09:48,642 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-16 12:09:48,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349198827] [2022-11-16 12:09:48,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:09:48,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 12:09:48,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:09:48,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 12:09:48,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:09:48,644 INFO L87 Difference]: Start difference. First operand 390 states and 504 transitions. Second operand has 12 states, 12 states have (on average 6.333333333333333) internal successors, (76), 11 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:09:50,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:09:50,516 INFO L93 Difference]: Finished difference Result 904 states and 1205 transitions. [2022-11-16 12:09:50,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-16 12:09:50,517 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.333333333333333) internal successors, (76), 11 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2022-11-16 12:09:50,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:09:50,521 INFO L225 Difference]: With dead ends: 904 [2022-11-16 12:09:50,521 INFO L226 Difference]: Without dead ends: 806 [2022-11-16 12:09:50,522 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=170, Invalid=480, Unknown=0, NotChecked=0, Total=650 [2022-11-16 12:09:50,523 INFO L413 NwaCegarLoop]: 300 mSDtfsCounter, 2791 mSDsluCounter, 1560 mSDsCounter, 0 mSdLazyCounter, 1423 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2791 SdHoareTripleChecker+Valid, 1860 SdHoareTripleChecker+Invalid, 1438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 12:09:50,524 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2791 Valid, 1860 Invalid, 1438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1423 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 12:09:50,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 806 states. [2022-11-16 12:09:50,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 806 to 393. [2022-11-16 12:09:50,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 377 states have (on average 1.3448275862068966) internal successors, (507), 392 states have internal predecessors, (507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:09:50,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 507 transitions. [2022-11-16 12:09:50,638 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 507 transitions. Word has length 76 [2022-11-16 12:09:50,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:09:50,638 INFO L495 AbstractCegarLoop]: Abstraction has 393 states and 507 transitions. [2022-11-16 12:09:50,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.333333333333333) internal successors, (76), 11 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:09:50,639 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 507 transitions. [2022-11-16 12:09:50,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-11-16 12:09:50,641 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:09:50,641 INFO L195 NwaCegarLoop]: 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] [2022-11-16 12:09:50,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 12:09:50,642 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-16 12:09:50,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:09:50,643 INFO L85 PathProgramCache]: Analyzing trace with hash 241040107, now seen corresponding path program 1 times [2022-11-16 12:09:50,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:09:50,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051576046] [2022-11-16 12:09:50,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:09:50,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:09:50,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:51,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:09:51,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:09:51,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051576046] [2022-11-16 12:09:51,203 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051576046] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:09:51,203 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:09:51,204 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 12:09:51,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546763451] [2022-11-16 12:09:51,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:09:51,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 12:09:51,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:09:51,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 12:09:51,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:09:51,207 INFO L87 Difference]: Start difference. First operand 393 states and 507 transitions. Second operand has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:09:53,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:09:53,021 INFO L93 Difference]: Finished difference Result 863 states and 1158 transitions. [2022-11-16 12:09:53,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 12:09:53,022 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2022-11-16 12:09:53,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:09:53,026 INFO L225 Difference]: With dead ends: 863 [2022-11-16 12:09:53,026 INFO L226 Difference]: Without dead ends: 735 [2022-11-16 12:09:53,027 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-11-16 12:09:53,027 INFO L413 NwaCegarLoop]: 400 mSDtfsCounter, 2756 mSDsluCounter, 1776 mSDsCounter, 0 mSdLazyCounter, 1570 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2756 SdHoareTripleChecker+Valid, 2176 SdHoareTripleChecker+Invalid, 1577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1570 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 12:09:53,028 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2756 Valid, 2176 Invalid, 1577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1570 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 12:09:53,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states. [2022-11-16 12:09:53,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 390. [2022-11-16 12:09:53,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 374 states have (on average 1.3449197860962567) internal successors, (503), 389 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:09:53,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 503 transitions. [2022-11-16 12:09:53,087 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 503 transitions. Word has length 76 [2022-11-16 12:09:53,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:09:53,087 INFO L495 AbstractCegarLoop]: Abstraction has 390 states and 503 transitions. [2022-11-16 12:09:53,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:09:53,088 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 503 transitions. [2022-11-16 12:09:53,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-11-16 12:09:53,089 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:09:53,089 INFO L195 NwaCegarLoop]: 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] [2022-11-16 12:09:53,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 12:09:53,090 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-16 12:09:53,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:09:53,090 INFO L85 PathProgramCache]: Analyzing trace with hash 1538930145, now seen corresponding path program 1 times [2022-11-16 12:09:53,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:09:53,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369312114] [2022-11-16 12:09:53,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:09:53,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:09:53,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:53,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:09:53,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:09:53,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369312114] [2022-11-16 12:09:53,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369312114] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:09:53,563 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:09:53,563 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 12:09:53,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749394643] [2022-11-16 12:09:53,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:09:53,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 12:09:53,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:09:53,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 12:09:53,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:09:53,566 INFO L87 Difference]: Start difference. First operand 390 states and 503 transitions. Second operand has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:09:55,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:09:55,053 INFO L93 Difference]: Finished difference Result 820 states and 1103 transitions. [2022-11-16 12:09:55,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 12:09:55,054 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2022-11-16 12:09:55,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:09:55,057 INFO L225 Difference]: With dead ends: 820 [2022-11-16 12:09:55,058 INFO L226 Difference]: Without dead ends: 731 [2022-11-16 12:09:55,058 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-11-16 12:09:55,061 INFO L413 NwaCegarLoop]: 376 mSDtfsCounter, 2760 mSDsluCounter, 1256 mSDsCounter, 0 mSdLazyCounter, 1254 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2760 SdHoareTripleChecker+Valid, 1632 SdHoareTripleChecker+Invalid, 1260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:09:55,061 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2760 Valid, 1632 Invalid, 1260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1254 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-16 12:09:55,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 731 states. [2022-11-16 12:09:55,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 731 to 390. [2022-11-16 12:09:55,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 374 states have (on average 1.3422459893048129) internal successors, (502), 389 states have internal predecessors, (502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:09:55,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 502 transitions. [2022-11-16 12:09:55,126 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 502 transitions. Word has length 76 [2022-11-16 12:09:55,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:09:55,126 INFO L495 AbstractCegarLoop]: Abstraction has 390 states and 502 transitions. [2022-11-16 12:09:55,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:09:55,127 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 502 transitions. [2022-11-16 12:09:55,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-16 12:09:55,128 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:09:55,128 INFO L195 NwaCegarLoop]: 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] [2022-11-16 12:09:55,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 12:09:55,129 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-16 12:09:55,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:09:55,130 INFO L85 PathProgramCache]: Analyzing trace with hash 684383254, now seen corresponding path program 1 times [2022-11-16 12:09:55,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:09:55,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818002605] [2022-11-16 12:09:55,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:09:55,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:09:55,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:09:55,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:09:55,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:09:55,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818002605] [2022-11-16 12:09:55,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818002605] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:09:55,952 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:09:55,953 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-16 12:09:55,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451855326] [2022-11-16 12:09:55,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:09:55,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 12:09:55,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:09:55,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 12:09:55,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:09:55,955 INFO L87 Difference]: Start difference. First operand 390 states and 502 transitions. Second operand has 12 states, 12 states have (on average 6.5) internal successors, (78), 11 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:09:59,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:09:59,744 INFO L93 Difference]: Finished difference Result 1347 states and 1865 transitions. [2022-11-16 12:09:59,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-16 12:09:59,745 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.5) internal successors, (78), 11 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-11-16 12:09:59,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:09:59,750 INFO L225 Difference]: With dead ends: 1347 [2022-11-16 12:09:59,750 INFO L226 Difference]: Without dead ends: 1249 [2022-11-16 12:09:59,751 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-11-16 12:09:59,752 INFO L413 NwaCegarLoop]: 641 mSDtfsCounter, 4482 mSDsluCounter, 1939 mSDsCounter, 0 mSdLazyCounter, 2188 mSolverCounterSat, 156 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4482 SdHoareTripleChecker+Valid, 2580 SdHoareTripleChecker+Invalid, 2344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 156 IncrementalHoareTripleChecker+Valid, 2188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-16 12:09:59,753 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4482 Valid, 2580 Invalid, 2344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [156 Valid, 2188 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-16 12:09:59,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1249 states. [2022-11-16 12:09:59,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1249 to 394. [2022-11-16 12:09:59,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 378 states have (on average 1.3386243386243386) internal successors, (506), 393 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:09:59,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 506 transitions. [2022-11-16 12:09:59,852 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 506 transitions. Word has length 78 [2022-11-16 12:09:59,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:09:59,852 INFO L495 AbstractCegarLoop]: Abstraction has 394 states and 506 transitions. [2022-11-16 12:09:59,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.5) internal successors, (78), 11 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:09:59,853 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 506 transitions. [2022-11-16 12:09:59,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-16 12:09:59,854 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:09:59,854 INFO L195 NwaCegarLoop]: 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] [2022-11-16 12:09:59,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 12:09:59,855 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-16 12:09:59,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:09:59,856 INFO L85 PathProgramCache]: Analyzing trace with hash 275538026, now seen corresponding path program 1 times [2022-11-16 12:09:59,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:09:59,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934116394] [2022-11-16 12:09:59,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:09:59,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:09:59,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:00,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:10:00,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:10:00,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934116394] [2022-11-16 12:10:00,274 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934116394] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:10:00,274 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:10:00,274 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 12:10:00,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052338240] [2022-11-16 12:10:00,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:10:00,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 12:10:00,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:10:00,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 12:10:00,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:10:00,276 INFO L87 Difference]: Start difference. First operand 394 states and 506 transitions. Second operand has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:10:01,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:10:01,821 INFO L93 Difference]: Finished difference Result 803 states and 1071 transitions. [2022-11-16 12:10:01,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 12:10:01,822 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-11-16 12:10:01,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:10:01,825 INFO L225 Difference]: With dead ends: 803 [2022-11-16 12:10:01,825 INFO L226 Difference]: Without dead ends: 727 [2022-11-16 12:10:01,826 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-11-16 12:10:01,827 INFO L413 NwaCegarLoop]: 356 mSDtfsCounter, 2941 mSDsluCounter, 1140 mSDsCounter, 0 mSdLazyCounter, 1151 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2941 SdHoareTripleChecker+Valid, 1496 SdHoareTripleChecker+Invalid, 1158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:10:01,827 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2941 Valid, 1496 Invalid, 1158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1151 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-16 12:10:01,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 727 states. [2022-11-16 12:10:01,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 727 to 394. [2022-11-16 12:10:01,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 378 states have (on average 1.335978835978836) internal successors, (505), 393 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:10:01,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 505 transitions. [2022-11-16 12:10:01,922 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 505 transitions. Word has length 78 [2022-11-16 12:10:01,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:10:01,923 INFO L495 AbstractCegarLoop]: Abstraction has 394 states and 505 transitions. [2022-11-16 12:10:01,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:10:01,923 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 505 transitions. [2022-11-16 12:10:01,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-16 12:10:01,925 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:10:01,925 INFO L195 NwaCegarLoop]: 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] [2022-11-16 12:10:01,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 12:10:01,926 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-16 12:10:01,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:10:01,926 INFO L85 PathProgramCache]: Analyzing trace with hash 643640201, now seen corresponding path program 1 times [2022-11-16 12:10:01,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:10:01,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663622372] [2022-11-16 12:10:01,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:10:01,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:10:01,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:02,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:10:02,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:10:02,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663622372] [2022-11-16 12:10:02,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663622372] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:10:02,595 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:10:02,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-16 12:10:02,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497680733] [2022-11-16 12:10:02,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:10:02,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 12:10:02,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:10:02,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 12:10:02,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:10:02,597 INFO L87 Difference]: Start difference. First operand 394 states and 505 transitions. Second operand has 12 states, 12 states have (on average 6.5) internal successors, (78), 11 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:10:06,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:10:06,053 INFO L93 Difference]: Finished difference Result 1219 states and 1675 transitions. [2022-11-16 12:10:06,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-16 12:10:06,054 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.5) internal successors, (78), 11 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-11-16 12:10:06,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:10:06,060 INFO L225 Difference]: With dead ends: 1219 [2022-11-16 12:10:06,061 INFO L226 Difference]: Without dead ends: 1143 [2022-11-16 12:10:06,062 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-11-16 12:10:06,063 INFO L413 NwaCegarLoop]: 434 mSDtfsCounter, 4620 mSDsluCounter, 1508 mSDsCounter, 0 mSdLazyCounter, 1601 mSolverCounterSat, 160 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4620 SdHoareTripleChecker+Valid, 1942 SdHoareTripleChecker+Invalid, 1761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 160 IncrementalHoareTripleChecker+Valid, 1601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-16 12:10:06,063 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4620 Valid, 1942 Invalid, 1761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [160 Valid, 1601 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-16 12:10:06,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1143 states. [2022-11-16 12:10:06,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1143 to 398. [2022-11-16 12:10:06,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 382 states have (on average 1.3324607329842932) internal successors, (509), 397 states have internal predecessors, (509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:10:06,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 509 transitions. [2022-11-16 12:10:06,167 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 509 transitions. Word has length 78 [2022-11-16 12:10:06,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:10:06,168 INFO L495 AbstractCegarLoop]: Abstraction has 398 states and 509 transitions. [2022-11-16 12:10:06,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.5) internal successors, (78), 11 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:10:06,168 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 509 transitions. [2022-11-16 12:10:06,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-16 12:10:06,169 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:10:06,169 INFO L195 NwaCegarLoop]: 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] [2022-11-16 12:10:06,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-16 12:10:06,170 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-16 12:10:06,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:10:06,170 INFO L85 PathProgramCache]: Analyzing trace with hash -1207054515, now seen corresponding path program 1 times [2022-11-16 12:10:06,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:10:06,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691999697] [2022-11-16 12:10:06,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:10:06,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:10:06,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:06,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:10:06,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:10:06,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691999697] [2022-11-16 12:10:06,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691999697] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:10:06,571 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:10:06,571 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 12:10:06,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568072738] [2022-11-16 12:10:06,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:10:06,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 12:10:06,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:10:06,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 12:10:06,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:10:06,573 INFO L87 Difference]: Start difference. First operand 398 states and 509 transitions. Second operand has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:10:08,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:10:08,180 INFO L93 Difference]: Finished difference Result 799 states and 1065 transitions. [2022-11-16 12:10:08,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 12:10:08,180 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-11-16 12:10:08,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:10:08,184 INFO L225 Difference]: With dead ends: 799 [2022-11-16 12:10:08,184 INFO L226 Difference]: Without dead ends: 727 [2022-11-16 12:10:08,185 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-11-16 12:10:08,186 INFO L413 NwaCegarLoop]: 336 mSDtfsCounter, 2990 mSDsluCounter, 1109 mSDsCounter, 0 mSdLazyCounter, 1116 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2990 SdHoareTripleChecker+Valid, 1445 SdHoareTripleChecker+Invalid, 1123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:10:08,186 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2990 Valid, 1445 Invalid, 1123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1116 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-16 12:10:08,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 727 states. [2022-11-16 12:10:08,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 727 to 398. [2022-11-16 12:10:08,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 382 states have (on average 1.3298429319371727) internal successors, (508), 397 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:10:08,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 508 transitions. [2022-11-16 12:10:08,283 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 508 transitions. Word has length 78 [2022-11-16 12:10:08,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:10:08,283 INFO L495 AbstractCegarLoop]: Abstraction has 398 states and 508 transitions. [2022-11-16 12:10:08,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:10:08,284 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 508 transitions. [2022-11-16 12:10:08,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-16 12:10:08,285 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:10:08,285 INFO L195 NwaCegarLoop]: 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] [2022-11-16 12:10:08,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-16 12:10:08,286 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-16 12:10:08,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:10:08,286 INFO L85 PathProgramCache]: Analyzing trace with hash -1808320783, now seen corresponding path program 1 times [2022-11-16 12:10:08,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:10:08,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450580107] [2022-11-16 12:10:08,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:10:08,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:10:08,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:08,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:10:08,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:10:08,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450580107] [2022-11-16 12:10:08,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450580107] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:10:08,769 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:10:08,769 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-16 12:10:08,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415265041] [2022-11-16 12:10:08,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:10:08,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 12:10:08,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:10:08,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 12:10:08,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:10:08,772 INFO L87 Difference]: Start difference. First operand 398 states and 508 transitions. Second operand has 12 states, 12 states have (on average 6.5) internal successors, (78), 11 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:10:10,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:10:10,562 INFO L93 Difference]: Finished difference Result 842 states and 1112 transitions. [2022-11-16 12:10:10,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-16 12:10:10,563 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.5) internal successors, (78), 11 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-11-16 12:10:10,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:10:10,565 INFO L225 Difference]: With dead ends: 842 [2022-11-16 12:10:10,566 INFO L226 Difference]: Without dead ends: 761 [2022-11-16 12:10:10,566 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=182, Invalid=520, Unknown=0, NotChecked=0, Total=702 [2022-11-16 12:10:10,567 INFO L413 NwaCegarLoop]: 306 mSDtfsCounter, 4152 mSDsluCounter, 1309 mSDsCounter, 0 mSdLazyCounter, 1278 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4152 SdHoareTripleChecker+Valid, 1615 SdHoareTripleChecker+Invalid, 1297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:10:10,567 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4152 Valid, 1615 Invalid, 1297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1278 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-16 12:10:10,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 761 states. [2022-11-16 12:10:10,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 761 to 405. [2022-11-16 12:10:10,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 389 states have (on average 1.3316195372750643) internal successors, (518), 404 states have internal predecessors, (518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:10:10,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 518 transitions. [2022-11-16 12:10:10,672 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 518 transitions. Word has length 78 [2022-11-16 12:10:10,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:10:10,673 INFO L495 AbstractCegarLoop]: Abstraction has 405 states and 518 transitions. [2022-11-16 12:10:10,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.5) internal successors, (78), 11 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:10:10,673 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 518 transitions. [2022-11-16 12:10:10,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-16 12:10:10,675 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:10:10,675 INFO L195 NwaCegarLoop]: 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] [2022-11-16 12:10:10,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-16 12:10:10,675 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-16 12:10:10,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:10:10,676 INFO L85 PathProgramCache]: Analyzing trace with hash 574449411, now seen corresponding path program 1 times [2022-11-16 12:10:10,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:10:10,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439518474] [2022-11-16 12:10:10,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:10:10,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:10:10,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:10,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:10:10,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:10:10,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439518474] [2022-11-16 12:10:10,986 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439518474] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:10:10,986 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:10:10,987 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 12:10:10,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683536092] [2022-11-16 12:10:10,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:10:10,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 12:10:10,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:10:10,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 12:10:10,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:10:10,988 INFO L87 Difference]: Start difference. First operand 405 states and 518 transitions. Second operand has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:10:12,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:10:12,641 INFO L93 Difference]: Finished difference Result 886 states and 1175 transitions. [2022-11-16 12:10:12,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 12:10:12,642 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-11-16 12:10:12,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:10:12,644 INFO L225 Difference]: With dead ends: 886 [2022-11-16 12:10:12,645 INFO L226 Difference]: Without dead ends: 743 [2022-11-16 12:10:12,646 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-16 12:10:12,646 INFO L413 NwaCegarLoop]: 507 mSDtfsCounter, 2181 mSDsluCounter, 1290 mSDsCounter, 0 mSdLazyCounter, 1345 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2181 SdHoareTripleChecker+Valid, 1797 SdHoareTripleChecker+Invalid, 1352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:10:12,647 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2181 Valid, 1797 Invalid, 1352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1345 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-16 12:10:12,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 743 states. [2022-11-16 12:10:12,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 743 to 398. [2022-11-16 12:10:12,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 382 states have (on average 1.3272251308900525) internal successors, (507), 397 states have internal predecessors, (507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:10:12,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 507 transitions. [2022-11-16 12:10:12,765 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 507 transitions. Word has length 78 [2022-11-16 12:10:12,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:10:12,765 INFO L495 AbstractCegarLoop]: Abstraction has 398 states and 507 transitions. [2022-11-16 12:10:12,766 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:10:12,766 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 507 transitions. [2022-11-16 12:10:12,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-16 12:10:12,767 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:10:12,767 INFO L195 NwaCegarLoop]: 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] [2022-11-16 12:10:12,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-16 12:10:12,768 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-16 12:10:12,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:10:12,768 INFO L85 PathProgramCache]: Analyzing trace with hash 688086315, now seen corresponding path program 1 times [2022-11-16 12:10:12,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:10:12,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073798828] [2022-11-16 12:10:12,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:10:12,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:10:12,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:13,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:10:13,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:10:13,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073798828] [2022-11-16 12:10:13,184 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073798828] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:10:13,185 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:10:13,185 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 12:10:13,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39131629] [2022-11-16 12:10:13,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:10:13,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 12:10:13,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:10:13,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 12:10:13,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:10:13,187 INFO L87 Difference]: Start difference. First operand 398 states and 507 transitions. Second operand has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:10:14,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:10:14,849 INFO L93 Difference]: Finished difference Result 803 states and 1066 transitions. [2022-11-16 12:10:14,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 12:10:14,850 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-11-16 12:10:14,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:10:14,853 INFO L225 Difference]: With dead ends: 803 [2022-11-16 12:10:14,854 INFO L226 Difference]: Without dead ends: 727 [2022-11-16 12:10:14,855 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-11-16 12:10:14,856 INFO L413 NwaCegarLoop]: 348 mSDtfsCounter, 2969 mSDsluCounter, 1118 mSDsCounter, 0 mSdLazyCounter, 1110 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2969 SdHoareTripleChecker+Valid, 1466 SdHoareTripleChecker+Invalid, 1117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:10:14,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2969 Valid, 1466 Invalid, 1117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1110 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-16 12:10:14,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 727 states. [2022-11-16 12:10:14,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 727 to 398. [2022-11-16 12:10:14,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 382 states have (on average 1.324607329842932) internal successors, (506), 397 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:10:14,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 506 transitions. [2022-11-16 12:10:14,999 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 506 transitions. Word has length 78 [2022-11-16 12:10:15,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:10:15,000 INFO L495 AbstractCegarLoop]: Abstraction has 398 states and 506 transitions. [2022-11-16 12:10:15,000 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:10:15,001 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 506 transitions. [2022-11-16 12:10:15,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-16 12:10:15,002 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:10:15,002 INFO L195 NwaCegarLoop]: 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] [2022-11-16 12:10:15,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-16 12:10:15,003 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-16 12:10:15,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:10:15,003 INFO L85 PathProgramCache]: Analyzing trace with hash 1096931543, now seen corresponding path program 1 times [2022-11-16 12:10:15,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:10:15,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084449455] [2022-11-16 12:10:15,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:10:15,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:10:15,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:15,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:10:15,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:10:15,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084449455] [2022-11-16 12:10:15,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084449455] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:10:15,315 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:10:15,316 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 12:10:15,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080170101] [2022-11-16 12:10:15,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:10:15,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 12:10:15,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:10:15,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 12:10:15,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:10:15,318 INFO L87 Difference]: Start difference. First operand 398 states and 506 transitions. Second operand has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:10:16,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:10:16,911 INFO L93 Difference]: Finished difference Result 833 states and 1107 transitions. [2022-11-16 12:10:16,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 12:10:16,912 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-11-16 12:10:16,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:10:16,915 INFO L225 Difference]: With dead ends: 833 [2022-11-16 12:10:16,915 INFO L226 Difference]: Without dead ends: 735 [2022-11-16 12:10:16,916 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-16 12:10:16,917 INFO L413 NwaCegarLoop]: 431 mSDtfsCounter, 2055 mSDsluCounter, 1352 mSDsCounter, 0 mSdLazyCounter, 1265 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2055 SdHoareTripleChecker+Valid, 1783 SdHoareTripleChecker+Invalid, 1271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:10:16,917 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2055 Valid, 1783 Invalid, 1271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1265 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-16 12:10:16,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states. [2022-11-16 12:10:17,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 398. [2022-11-16 12:10:17,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 382 states have (on average 1.3219895287958114) internal successors, (505), 397 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:10:17,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 505 transitions. [2022-11-16 12:10:17,049 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 505 transitions. Word has length 78 [2022-11-16 12:10:17,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:10:17,050 INFO L495 AbstractCegarLoop]: Abstraction has 398 states and 505 transitions. [2022-11-16 12:10:17,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.666666666666666) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:10:17,051 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 505 transitions. [2022-11-16 12:10:17,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-11-16 12:10:17,052 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:10:17,052 INFO L195 NwaCegarLoop]: 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] [2022-11-16 12:10:17,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-16 12:10:17,053 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-16 12:10:17,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:10:17,053 INFO L85 PathProgramCache]: Analyzing trace with hash 308307099, now seen corresponding path program 1 times [2022-11-16 12:10:17,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:10:17,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286038952] [2022-11-16 12:10:17,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:10:17,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:10:17,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:17,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:10:17,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:10:17,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286038952] [2022-11-16 12:10:17,367 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286038952] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:10:17,368 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:10:17,368 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 12:10:17,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782625242] [2022-11-16 12:10:17,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:10:17,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 12:10:17,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:10:17,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 12:10:17,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:10:17,370 INFO L87 Difference]: Start difference. First operand 398 states and 505 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:10:19,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:10:19,051 INFO L93 Difference]: Finished difference Result 833 states and 1108 transitions. [2022-11-16 12:10:19,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 12:10:19,051 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-11-16 12:10:19,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:10:19,054 INFO L225 Difference]: With dead ends: 833 [2022-11-16 12:10:19,054 INFO L226 Difference]: Without dead ends: 735 [2022-11-16 12:10:19,055 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-16 12:10:19,055 INFO L413 NwaCegarLoop]: 505 mSDtfsCounter, 1397 mSDsluCounter, 1409 mSDsCounter, 0 mSdLazyCounter, 1390 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1397 SdHoareTripleChecker+Valid, 1914 SdHoareTripleChecker+Invalid, 1397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:10:19,055 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1397 Valid, 1914 Invalid, 1397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1390 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-16 12:10:19,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states. [2022-11-16 12:10:19,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 394. [2022-11-16 12:10:19,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 378 states have (on average 1.3227513227513228) internal successors, (500), 393 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:10:19,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 500 transitions. [2022-11-16 12:10:19,164 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 500 transitions. Word has length 79 [2022-11-16 12:10:19,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:10:19,165 INFO L495 AbstractCegarLoop]: Abstraction has 394 states and 500 transitions. [2022-11-16 12:10:19,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:10:19,165 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 500 transitions. [2022-11-16 12:10:19,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-11-16 12:10:19,167 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:10:19,167 INFO L195 NwaCegarLoop]: 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] [2022-11-16 12:10:19,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-16 12:10:19,168 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-16 12:10:19,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:10:19,168 INFO L85 PathProgramCache]: Analyzing trace with hash -754652965, now seen corresponding path program 1 times [2022-11-16 12:10:19,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:10:19,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543985056] [2022-11-16 12:10:19,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:10:19,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:10:19,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:19,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:10:19,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:10:19,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543985056] [2022-11-16 12:10:19,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543985056] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:10:19,483 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:10:19,483 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 12:10:19,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37576732] [2022-11-16 12:10:19,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:10:19,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 12:10:19,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:10:19,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 12:10:19,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:10:19,485 INFO L87 Difference]: Start difference. First operand 394 states and 500 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:10:21,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:10:21,115 INFO L93 Difference]: Finished difference Result 799 states and 1059 transitions. [2022-11-16 12:10:21,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 12:10:21,115 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-11-16 12:10:21,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:10:21,119 INFO L225 Difference]: With dead ends: 799 [2022-11-16 12:10:21,119 INFO L226 Difference]: Without dead ends: 723 [2022-11-16 12:10:21,120 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-16 12:10:21,121 INFO L413 NwaCegarLoop]: 458 mSDtfsCounter, 1647 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 1372 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1647 SdHoareTripleChecker+Valid, 1816 SdHoareTripleChecker+Invalid, 1378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:10:21,121 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1647 Valid, 1816 Invalid, 1378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1372 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-16 12:10:21,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 723 states. [2022-11-16 12:10:21,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 723 to 390. [2022-11-16 12:10:21,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 374 states have (on average 1.3235294117647058) internal successors, (495), 389 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:10:21,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 495 transitions. [2022-11-16 12:10:21,222 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 495 transitions. Word has length 79 [2022-11-16 12:10:21,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:10:21,223 INFO L495 AbstractCegarLoop]: Abstraction has 390 states and 495 transitions. [2022-11-16 12:10:21,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:10:21,223 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 495 transitions. [2022-11-16 12:10:21,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-16 12:10:21,225 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:10:21,225 INFO L195 NwaCegarLoop]: 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] [2022-11-16 12:10:21,225 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-16 12:10:21,225 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-16 12:10:21,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:10:21,226 INFO L85 PathProgramCache]: Analyzing trace with hash 1780834374, now seen corresponding path program 1 times [2022-11-16 12:10:21,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:10:21,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341546168] [2022-11-16 12:10:21,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:10:21,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:10:21,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:21,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:10:21,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:10:21,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341546168] [2022-11-16 12:10:21,613 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341546168] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:10:21,613 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:10:21,613 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 12:10:21,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254408415] [2022-11-16 12:10:21,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:10:21,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 12:10:21,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:10:21,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 12:10:21,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:10:21,616 INFO L87 Difference]: Start difference. First operand 390 states and 495 transitions. Second operand has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:10:23,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:10:23,378 INFO L93 Difference]: Finished difference Result 773 states and 1019 transitions. [2022-11-16 12:10:23,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 12:10:23,379 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-11-16 12:10:23,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:10:23,383 INFO L225 Difference]: With dead ends: 773 [2022-11-16 12:10:23,384 INFO L226 Difference]: Without dead ends: 707 [2022-11-16 12:10:23,385 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-11-16 12:10:23,386 INFO L413 NwaCegarLoop]: 403 mSDtfsCounter, 2339 mSDsluCounter, 1672 mSDsCounter, 0 mSdLazyCounter, 1575 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2339 SdHoareTripleChecker+Valid, 2075 SdHoareTripleChecker+Invalid, 1581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:10:23,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2339 Valid, 2075 Invalid, 1581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1575 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-16 12:10:23,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2022-11-16 12:10:23,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 390. [2022-11-16 12:10:23,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 374 states have (on average 1.320855614973262) internal successors, (494), 389 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:10:23,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 494 transitions. [2022-11-16 12:10:23,545 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 494 transitions. Word has length 80 [2022-11-16 12:10:23,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:10:23,545 INFO L495 AbstractCegarLoop]: Abstraction has 390 states and 494 transitions. [2022-11-16 12:10:23,545 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:10:23,546 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 494 transitions. [2022-11-16 12:10:23,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-16 12:10:23,547 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:10:23,547 INFO L195 NwaCegarLoop]: 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] [2022-11-16 12:10:23,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-16 12:10:23,548 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-16 12:10:23,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:10:23,548 INFO L85 PathProgramCache]: Analyzing trace with hash 515089470, now seen corresponding path program 1 times [2022-11-16 12:10:23,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:10:23,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708190010] [2022-11-16 12:10:23,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:10:23,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:10:23,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:24,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:10:24,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:10:24,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708190010] [2022-11-16 12:10:24,125 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708190010] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:10:24,125 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:10:24,125 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-16 12:10:24,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549856928] [2022-11-16 12:10:24,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:10:24,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 12:10:24,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:10:24,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 12:10:24,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:10:24,127 INFO L87 Difference]: Start difference. First operand 390 states and 494 transitions. Second operand has 12 states, 12 states have (on average 6.666666666666667) internal successors, (80), 11 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:10:27,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:10:27,361 INFO L93 Difference]: Finished difference Result 1105 states and 1498 transitions. [2022-11-16 12:10:27,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-16 12:10:27,363 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.666666666666667) internal successors, (80), 11 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-11-16 12:10:27,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:10:27,367 INFO L225 Difference]: With dead ends: 1105 [2022-11-16 12:10:27,368 INFO L226 Difference]: Without dead ends: 1036 [2022-11-16 12:10:27,369 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-11-16 12:10:27,370 INFO L413 NwaCegarLoop]: 411 mSDtfsCounter, 5251 mSDsluCounter, 1689 mSDsCounter, 0 mSdLazyCounter, 1714 mSolverCounterSat, 154 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5251 SdHoareTripleChecker+Valid, 2100 SdHoareTripleChecker+Invalid, 1868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 154 IncrementalHoareTripleChecker+Valid, 1714 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-16 12:10:27,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5251 Valid, 2100 Invalid, 1868 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [154 Valid, 1714 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-16 12:10:27,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1036 states. [2022-11-16 12:10:27,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1036 to 394. [2022-11-16 12:10:27,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 378 states have (on average 1.3174603174603174) internal successors, (498), 393 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:10:27,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 498 transitions. [2022-11-16 12:10:27,512 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 498 transitions. Word has length 80 [2022-11-16 12:10:27,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:10:27,513 INFO L495 AbstractCegarLoop]: Abstraction has 394 states and 498 transitions. [2022-11-16 12:10:27,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.666666666666667) internal successors, (80), 11 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:10:27,513 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 498 transitions. [2022-11-16 12:10:27,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-16 12:10:27,514 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:10:27,515 INFO L195 NwaCegarLoop]: 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] [2022-11-16 12:10:27,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-16 12:10:27,515 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-16 12:10:27,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:10:27,516 INFO L85 PathProgramCache]: Analyzing trace with hash 1270226045, now seen corresponding path program 1 times [2022-11-16 12:10:27,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:10:27,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674203455] [2022-11-16 12:10:27,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:10:27,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:10:27,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:27,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:10:27,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:10:27,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674203455] [2022-11-16 12:10:27,882 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674203455] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:10:27,882 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:10:27,882 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 12:10:27,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756105339] [2022-11-16 12:10:27,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:10:27,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 12:10:27,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:10:27,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 12:10:27,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:10:27,884 INFO L87 Difference]: Start difference. First operand 394 states and 498 transitions. Second operand has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:10:29,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:10:29,696 INFO L93 Difference]: Finished difference Result 776 states and 1020 transitions. [2022-11-16 12:10:29,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 12:10:29,700 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-11-16 12:10:29,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:10:29,703 INFO L225 Difference]: With dead ends: 776 [2022-11-16 12:10:29,703 INFO L226 Difference]: Without dead ends: 707 [2022-11-16 12:10:29,704 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-11-16 12:10:29,705 INFO L413 NwaCegarLoop]: 357 mSDtfsCounter, 2422 mSDsluCounter, 1532 mSDsCounter, 0 mSdLazyCounter, 1409 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2422 SdHoareTripleChecker+Valid, 1889 SdHoareTripleChecker+Invalid, 1416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:10:29,705 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2422 Valid, 1889 Invalid, 1416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1409 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-16 12:10:29,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2022-11-16 12:10:29,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 394. [2022-11-16 12:10:29,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 378 states have (on average 1.3148148148148149) internal successors, (497), 393 states have internal predecessors, (497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:10:29,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 497 transitions. [2022-11-16 12:10:29,850 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 497 transitions. Word has length 80 [2022-11-16 12:10:29,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:10:29,850 INFO L495 AbstractCegarLoop]: Abstraction has 394 states and 497 transitions. [2022-11-16 12:10:29,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:10:29,851 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 497 transitions. [2022-11-16 12:10:29,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-16 12:10:29,852 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:10:29,852 INFO L195 NwaCegarLoop]: 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] [2022-11-16 12:10:29,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-16 12:10:29,853 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-16 12:10:29,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:10:29,853 INFO L85 PathProgramCache]: Analyzing trace with hash -1112544149, now seen corresponding path program 1 times [2022-11-16 12:10:29,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:10:29,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399102155] [2022-11-16 12:10:29,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:10:29,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:10:29,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:30,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:10:30,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:10:30,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399102155] [2022-11-16 12:10:30,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399102155] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:10:30,142 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:10:30,142 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 12:10:30,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914563040] [2022-11-16 12:10:30,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:10:30,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 12:10:30,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:10:30,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 12:10:30,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:10:30,151 INFO L87 Difference]: Start difference. First operand 394 states and 497 transitions. Second operand has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:10:31,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:10:31,863 INFO L93 Difference]: Finished difference Result 808 states and 1064 transitions. [2022-11-16 12:10:31,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 12:10:31,863 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-11-16 12:10:31,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:10:31,866 INFO L225 Difference]: With dead ends: 808 [2022-11-16 12:10:31,866 INFO L226 Difference]: Without dead ends: 727 [2022-11-16 12:10:31,867 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-16 12:10:31,869 INFO L413 NwaCegarLoop]: 501 mSDtfsCounter, 2318 mSDsluCounter, 1483 mSDsCounter, 0 mSdLazyCounter, 1513 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2318 SdHoareTripleChecker+Valid, 1984 SdHoareTripleChecker+Invalid, 1519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:10:31,869 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2318 Valid, 1984 Invalid, 1519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1513 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-16 12:10:31,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 727 states. [2022-11-16 12:10:31,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 727 to 394. [2022-11-16 12:10:32,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 378 states have (on average 1.312169312169312) internal successors, (496), 393 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:10:32,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 496 transitions. [2022-11-16 12:10:32,000 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 496 transitions. Word has length 80 [2022-11-16 12:10:32,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:10:32,000 INFO L495 AbstractCegarLoop]: Abstraction has 394 states and 496 transitions. [2022-11-16 12:10:32,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:10:32,001 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 496 transitions. [2022-11-16 12:10:32,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-16 12:10:32,002 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:10:32,002 INFO L195 NwaCegarLoop]: 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] [2022-11-16 12:10:32,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-16 12:10:32,002 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-16 12:10:32,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:10:32,003 INFO L85 PathProgramCache]: Analyzing trace with hash -955374417, now seen corresponding path program 1 times [2022-11-16 12:10:32,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:10:32,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169302958] [2022-11-16 12:10:32,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:10:32,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:10:32,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:32,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:10:32,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:10:32,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169302958] [2022-11-16 12:10:32,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169302958] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:10:32,357 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:10:32,357 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 12:10:32,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422919647] [2022-11-16 12:10:32,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:10:32,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 12:10:32,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:10:32,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 12:10:32,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:10:32,359 INFO L87 Difference]: Start difference. First operand 394 states and 496 transitions. Second operand has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:10:34,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:10:34,080 INFO L93 Difference]: Finished difference Result 773 states and 1015 transitions. [2022-11-16 12:10:34,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 12:10:34,081 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-11-16 12:10:34,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:10:34,083 INFO L225 Difference]: With dead ends: 773 [2022-11-16 12:10:34,083 INFO L226 Difference]: Without dead ends: 707 [2022-11-16 12:10:34,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-11-16 12:10:34,085 INFO L413 NwaCegarLoop]: 417 mSDtfsCounter, 2307 mSDsluCounter, 1714 mSDsCounter, 0 mSdLazyCounter, 1572 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2307 SdHoareTripleChecker+Valid, 2131 SdHoareTripleChecker+Invalid, 1578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:10:34,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2307 Valid, 2131 Invalid, 1578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1572 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-16 12:10:34,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2022-11-16 12:10:34,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 394. [2022-11-16 12:10:34,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 378 states have (on average 1.3095238095238095) internal successors, (495), 393 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:10:34,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 495 transitions. [2022-11-16 12:10:34,242 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 495 transitions. Word has length 80 [2022-11-16 12:10:34,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:10:34,242 INFO L495 AbstractCegarLoop]: Abstraction has 394 states and 495 transitions. [2022-11-16 12:10:34,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:10:34,243 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 495 transitions. [2022-11-16 12:10:34,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-16 12:10:34,244 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:10:34,244 INFO L195 NwaCegarLoop]: 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] [2022-11-16 12:10:34,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-16 12:10:34,245 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-16 12:10:34,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:10:34,245 INFO L85 PathProgramCache]: Analyzing trace with hash 2073965149, now seen corresponding path program 1 times [2022-11-16 12:10:34,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:10:34,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621204216] [2022-11-16 12:10:34,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:10:34,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:10:34,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:34,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:10:34,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:10:34,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621204216] [2022-11-16 12:10:34,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621204216] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:10:34,769 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:10:34,769 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-16 12:10:34,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566242427] [2022-11-16 12:10:34,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:10:34,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 12:10:34,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:10:34,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 12:10:34,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:10:34,771 INFO L87 Difference]: Start difference. First operand 394 states and 495 transitions. Second operand has 12 states, 12 states have (on average 6.666666666666667) internal successors, (80), 11 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:10:37,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:10:37,936 INFO L93 Difference]: Finished difference Result 1041 states and 1397 transitions. [2022-11-16 12:10:37,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-16 12:10:37,938 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.666666666666667) internal successors, (80), 11 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-11-16 12:10:37,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:10:37,942 INFO L225 Difference]: With dead ends: 1041 [2022-11-16 12:10:37,942 INFO L226 Difference]: Without dead ends: 1036 [2022-11-16 12:10:37,943 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-11-16 12:10:37,944 INFO L413 NwaCegarLoop]: 460 mSDtfsCounter, 4357 mSDsluCounter, 1564 mSDsCounter, 0 mSdLazyCounter, 1643 mSolverCounterSat, 147 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4357 SdHoareTripleChecker+Valid, 2024 SdHoareTripleChecker+Invalid, 1790 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 147 IncrementalHoareTripleChecker+Valid, 1643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-16 12:10:37,944 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4357 Valid, 2024 Invalid, 1790 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [147 Valid, 1643 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-16 12:10:37,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1036 states. [2022-11-16 12:10:38,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1036 to 398. [2022-11-16 12:10:38,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 382 states have (on average 1.306282722513089) internal successors, (499), 397 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:10:38,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 499 transitions. [2022-11-16 12:10:38,141 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 499 transitions. Word has length 80 [2022-11-16 12:10:38,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:10:38,141 INFO L495 AbstractCegarLoop]: Abstraction has 398 states and 499 transitions. [2022-11-16 12:10:38,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.666666666666667) internal successors, (80), 11 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:10:38,142 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 499 transitions. [2022-11-16 12:10:38,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-16 12:10:38,143 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:10:38,143 INFO L195 NwaCegarLoop]: 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] [2022-11-16 12:10:38,143 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-16 12:10:38,144 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-16 12:10:38,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:10:38,144 INFO L85 PathProgramCache]: Analyzing trace with hash -306680341, now seen corresponding path program 1 times [2022-11-16 12:10:38,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:10:38,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182423126] [2022-11-16 12:10:38,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:10:38,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:10:38,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:38,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:10:38,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:10:38,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182423126] [2022-11-16 12:10:38,677 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182423126] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:10:38,678 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:10:38,678 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-16 12:10:38,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552936555] [2022-11-16 12:10:38,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:10:38,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 12:10:38,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:10:38,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 12:10:38,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:10:38,679 INFO L87 Difference]: Start difference. First operand 398 states and 499 transitions. Second operand has 12 states, 12 states have (on average 6.666666666666667) internal successors, (80), 11 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:10:41,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:10:41,732 INFO L93 Difference]: Finished difference Result 1099 states and 1487 transitions. [2022-11-16 12:10:41,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-16 12:10:41,732 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.666666666666667) internal successors, (80), 11 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-11-16 12:10:41,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:10:41,736 INFO L225 Difference]: With dead ends: 1099 [2022-11-16 12:10:41,736 INFO L226 Difference]: Without dead ends: 1033 [2022-11-16 12:10:41,737 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-11-16 12:10:41,737 INFO L413 NwaCegarLoop]: 414 mSDtfsCounter, 5231 mSDsluCounter, 1392 mSDsCounter, 0 mSdLazyCounter, 1451 mSolverCounterSat, 154 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5231 SdHoareTripleChecker+Valid, 1806 SdHoareTripleChecker+Invalid, 1605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 154 IncrementalHoareTripleChecker+Valid, 1451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-16 12:10:41,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5231 Valid, 1806 Invalid, 1605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [154 Valid, 1451 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-16 12:10:41,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1033 states. [2022-11-16 12:10:41,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1033 to 402. [2022-11-16 12:10:41,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 386 states have (on average 1.3031088082901554) internal successors, (503), 401 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:10:41,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 503 transitions. [2022-11-16 12:10:41,898 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 503 transitions. Word has length 80 [2022-11-16 12:10:41,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:10:41,898 INFO L495 AbstractCegarLoop]: Abstraction has 402 states and 503 transitions. [2022-11-16 12:10:41,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.666666666666667) internal successors, (80), 11 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:10:41,898 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 503 transitions. [2022-11-16 12:10:41,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-16 12:10:41,899 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:10:41,900 INFO L195 NwaCegarLoop]: 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] [2022-11-16 12:10:41,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-16 12:10:41,900 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-16 12:10:41,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:10:41,901 INFO L85 PathProgramCache]: Analyzing trace with hash -1961273491, now seen corresponding path program 1 times [2022-11-16 12:10:41,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:10:41,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306476189] [2022-11-16 12:10:41,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:10:41,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:10:41,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:42,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:10:42,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:10:42,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306476189] [2022-11-16 12:10:42,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306476189] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:10:42,253 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:10:42,254 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 12:10:42,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559046584] [2022-11-16 12:10:42,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:10:42,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 12:10:42,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:10:42,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 12:10:42,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:10:42,255 INFO L87 Difference]: Start difference. First operand 402 states and 503 transitions. Second operand has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:10:44,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:10:44,095 INFO L93 Difference]: Finished difference Result 771 states and 1010 transitions. [2022-11-16 12:10:44,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 12:10:44,096 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-11-16 12:10:44,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:10:44,100 INFO L225 Difference]: With dead ends: 771 [2022-11-16 12:10:44,100 INFO L226 Difference]: Without dead ends: 707 [2022-11-16 12:10:44,101 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-11-16 12:10:44,102 INFO L413 NwaCegarLoop]: 365 mSDtfsCounter, 2395 mSDsluCounter, 1561 mSDsCounter, 0 mSdLazyCounter, 1401 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2395 SdHoareTripleChecker+Valid, 1926 SdHoareTripleChecker+Invalid, 1408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:10:44,102 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2395 Valid, 1926 Invalid, 1408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1401 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-16 12:10:44,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2022-11-16 12:10:44,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 402. [2022-11-16 12:10:44,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 386 states have (on average 1.3005181347150259) internal successors, (502), 401 states have internal predecessors, (502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:10:44,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 502 transitions. [2022-11-16 12:10:44,305 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 502 transitions. Word has length 80 [2022-11-16 12:10:44,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:10:44,305 INFO L495 AbstractCegarLoop]: Abstraction has 402 states and 502 transitions. [2022-11-16 12:10:44,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:10:44,306 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 502 transitions. [2022-11-16 12:10:44,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-16 12:10:44,307 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:10:44,307 INFO L195 NwaCegarLoop]: 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] [2022-11-16 12:10:44,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-16 12:10:44,308 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-16 12:10:44,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:10:44,308 INFO L85 PathProgramCache]: Analyzing trace with hash -1780916949, now seen corresponding path program 1 times [2022-11-16 12:10:44,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:10:44,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236654657] [2022-11-16 12:10:44,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:10:44,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:10:44,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:44,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:10:44,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:10:44,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236654657] [2022-11-16 12:10:44,592 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236654657] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:10:44,593 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:10:44,593 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 12:10:44,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437093711] [2022-11-16 12:10:44,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:10:44,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 12:10:44,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:10:44,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 12:10:44,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:10:44,595 INFO L87 Difference]: Start difference. First operand 402 states and 502 transitions. Second operand has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:10:46,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:10:46,194 INFO L93 Difference]: Finished difference Result 820 states and 1071 transitions. [2022-11-16 12:10:46,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 12:10:46,195 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-11-16 12:10:46,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:10:46,199 INFO L225 Difference]: With dead ends: 820 [2022-11-16 12:10:46,199 INFO L226 Difference]: Without dead ends: 739 [2022-11-16 12:10:46,200 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-16 12:10:46,200 INFO L413 NwaCegarLoop]: 379 mSDtfsCounter, 1913 mSDsluCounter, 1226 mSDsCounter, 0 mSdLazyCounter, 1075 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1913 SdHoareTripleChecker+Valid, 1605 SdHoareTripleChecker+Invalid, 1082 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1075 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-16 12:10:46,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1913 Valid, 1605 Invalid, 1082 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1075 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-16 12:10:46,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 739 states. [2022-11-16 12:10:46,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 739 to 402. [2022-11-16 12:10:46,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 386 states have (on average 1.2979274611398963) internal successors, (501), 401 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:10:46,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 501 transitions. [2022-11-16 12:10:46,350 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 501 transitions. Word has length 80 [2022-11-16 12:10:46,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:10:46,351 INFO L495 AbstractCegarLoop]: Abstraction has 402 states and 501 transitions. [2022-11-16 12:10:46,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:10:46,351 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 501 transitions. [2022-11-16 12:10:46,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-16 12:10:46,352 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:10:46,353 INFO L195 NwaCegarLoop]: 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] [2022-11-16 12:10:46,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-16 12:10:46,353 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-16 12:10:46,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:10:46,354 INFO L85 PathProgramCache]: Analyzing trace with hash 601853245, now seen corresponding path program 1 times [2022-11-16 12:10:46,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:10:46,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604371124] [2022-11-16 12:10:46,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:10:46,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:10:46,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:46,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:10:46,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:10:46,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604371124] [2022-11-16 12:10:46,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604371124] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:10:46,693 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:10:46,693 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 12:10:46,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444076713] [2022-11-16 12:10:46,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:10:46,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 12:10:46,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:10:46,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 12:10:46,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:10:46,695 INFO L87 Difference]: Start difference. First operand 402 states and 501 transitions. Second operand has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:10:48,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:10:48,518 INFO L93 Difference]: Finished difference Result 776 states and 1013 transitions. [2022-11-16 12:10:48,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 12:10:48,518 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-11-16 12:10:48,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:10:48,521 INFO L225 Difference]: With dead ends: 776 [2022-11-16 12:10:48,522 INFO L226 Difference]: Without dead ends: 707 [2022-11-16 12:10:48,523 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-11-16 12:10:48,523 INFO L413 NwaCegarLoop]: 379 mSDtfsCounter, 2366 mSDsluCounter, 1598 mSDsCounter, 0 mSdLazyCounter, 1415 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2366 SdHoareTripleChecker+Valid, 1977 SdHoareTripleChecker+Invalid, 1422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:10:48,524 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2366 Valid, 1977 Invalid, 1422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1415 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-16 12:10:48,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2022-11-16 12:10:48,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 402. [2022-11-16 12:10:48,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 386 states have (on average 1.2953367875647668) internal successors, (500), 401 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:10:48,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 500 transitions. [2022-11-16 12:10:48,690 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 500 transitions. Word has length 80 [2022-11-16 12:10:48,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:10:48,691 INFO L495 AbstractCegarLoop]: Abstraction has 402 states and 500 transitions. [2022-11-16 12:10:48,691 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:10:48,691 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 500 transitions. [2022-11-16 12:10:48,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-16 12:10:48,692 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:10:48,692 INFO L195 NwaCegarLoop]: 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] [2022-11-16 12:10:48,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-16 12:10:48,692 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-16 12:10:48,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:10:48,693 INFO L85 PathProgramCache]: Analyzing trace with hash -953833721, now seen corresponding path program 1 times [2022-11-16 12:10:48,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:10:48,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018082383] [2022-11-16 12:10:48,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:10:48,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:10:48,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:48,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:10:48,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:10:48,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018082383] [2022-11-16 12:10:48,994 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018082383] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:10:48,994 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:10:48,994 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 12:10:48,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148460026] [2022-11-16 12:10:48,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:10:48,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 12:10:48,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:10:48,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 12:10:48,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:10:48,996 INFO L87 Difference]: Start difference. First operand 402 states and 500 transitions. Second operand has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:10:50,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:10:50,742 INFO L93 Difference]: Finished difference Result 851 states and 1111 transitions. [2022-11-16 12:10:50,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 12:10:50,743 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-11-16 12:10:50,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:10:50,747 INFO L225 Difference]: With dead ends: 851 [2022-11-16 12:10:50,747 INFO L226 Difference]: Without dead ends: 747 [2022-11-16 12:10:50,748 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-16 12:10:50,748 INFO L413 NwaCegarLoop]: 505 mSDtfsCounter, 1866 mSDsluCounter, 1440 mSDsCounter, 0 mSdLazyCounter, 1364 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1866 SdHoareTripleChecker+Valid, 1945 SdHoareTripleChecker+Invalid, 1371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:10:50,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1866 Valid, 1945 Invalid, 1371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1364 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-16 12:10:50,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 747 states. [2022-11-16 12:10:50,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 747 to 402. [2022-11-16 12:10:50,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 386 states have (on average 1.2927461139896372) internal successors, (499), 401 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:10:50,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 499 transitions. [2022-11-16 12:10:50,886 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 499 transitions. Word has length 80 [2022-11-16 12:10:50,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:10:50,886 INFO L495 AbstractCegarLoop]: Abstraction has 402 states and 499 transitions. [2022-11-16 12:10:50,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:10:50,886 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 499 transitions. [2022-11-16 12:10:50,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-16 12:10:50,887 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:10:50,887 INFO L195 NwaCegarLoop]: 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] [2022-11-16 12:10:50,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-16 12:10:50,887 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-16 12:10:50,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:10:50,888 INFO L85 PathProgramCache]: Analyzing trace with hash -1702835234, now seen corresponding path program 1 times [2022-11-16 12:10:50,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:10:50,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642666072] [2022-11-16 12:10:50,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:10:50,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:10:50,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:51,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:10:51,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:10:51,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642666072] [2022-11-16 12:10:51,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642666072] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:10:51,204 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:10:51,205 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 12:10:51,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381849409] [2022-11-16 12:10:51,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:10:51,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 12:10:51,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:10:51,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 12:10:51,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:10:51,206 INFO L87 Difference]: Start difference. First operand 402 states and 499 transitions. Second operand has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:10:52,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:10:52,972 INFO L93 Difference]: Finished difference Result 712 states and 915 transitions. [2022-11-16 12:10:52,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 12:10:52,973 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-11-16 12:10:52,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:10:52,977 INFO L225 Difference]: With dead ends: 712 [2022-11-16 12:10:52,977 INFO L226 Difference]: Without dead ends: 707 [2022-11-16 12:10:52,978 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-11-16 12:10:52,978 INFO L413 NwaCegarLoop]: 379 mSDtfsCounter, 2356 mSDsluCounter, 1599 mSDsCounter, 0 mSdLazyCounter, 1408 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2356 SdHoareTripleChecker+Valid, 1978 SdHoareTripleChecker+Invalid, 1415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:10:52,978 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2356 Valid, 1978 Invalid, 1415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1408 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-16 12:10:52,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2022-11-16 12:10:53,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 402. [2022-11-16 12:10:53,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 386 states have (on average 1.2901554404145077) internal successors, (498), 401 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:10:53,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 498 transitions. [2022-11-16 12:10:53,109 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 498 transitions. Word has length 80 [2022-11-16 12:10:53,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:10:53,109 INFO L495 AbstractCegarLoop]: Abstraction has 402 states and 498 transitions. [2022-11-16 12:10:53,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:10:53,109 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 498 transitions. [2022-11-16 12:10:53,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-16 12:10:53,110 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:10:53,110 INFO L195 NwaCegarLoop]: 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] [2022-11-16 12:10:53,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-11-16 12:10:53,111 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-16 12:10:53,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:10:53,111 INFO L85 PathProgramCache]: Analyzing trace with hash 209361868, now seen corresponding path program 1 times [2022-11-16 12:10:53,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:10:53,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701495476] [2022-11-16 12:10:53,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:10:53,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:10:53,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:53,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:10:53,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:10:53,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701495476] [2022-11-16 12:10:53,352 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701495476] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:10:53,352 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:10:53,352 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 12:10:53,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691220690] [2022-11-16 12:10:53,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:10:53,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 12:10:53,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:10:53,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 12:10:53,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:10:53,354 INFO L87 Difference]: Start difference. First operand 402 states and 498 transitions. Second operand has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:10:55,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:10:55,057 INFO L93 Difference]: Finished difference Result 756 states and 970 transitions. [2022-11-16 12:10:55,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 12:10:55,058 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-11-16 12:10:55,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:10:55,060 INFO L225 Difference]: With dead ends: 756 [2022-11-16 12:10:55,060 INFO L226 Difference]: Without dead ends: 739 [2022-11-16 12:10:55,060 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-16 12:10:55,061 INFO L413 NwaCegarLoop]: 501 mSDtfsCounter, 2356 mSDsluCounter, 1489 mSDsCounter, 0 mSdLazyCounter, 1373 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2356 SdHoareTripleChecker+Valid, 1990 SdHoareTripleChecker+Invalid, 1380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-16 12:10:55,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2356 Valid, 1990 Invalid, 1380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1373 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-16 12:10:55,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 739 states. [2022-11-16 12:10:55,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 739 to 402. [2022-11-16 12:10:55,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 386 states have (on average 1.2875647668393781) internal successors, (497), 401 states have internal predecessors, (497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:10:55,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 497 transitions. [2022-11-16 12:10:55,203 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 497 transitions. Word has length 80 [2022-11-16 12:10:55,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:10:55,204 INFO L495 AbstractCegarLoop]: Abstraction has 402 states and 497 transitions. [2022-11-16 12:10:55,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:10:55,204 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 497 transitions. [2022-11-16 12:10:55,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-16 12:10:55,205 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:10:55,205 INFO L195 NwaCegarLoop]: 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] [2022-11-16 12:10:55,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-11-16 12:10:55,205 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-16 12:10:55,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:10:55,206 INFO L85 PathProgramCache]: Analyzing trace with hash -1191963760, now seen corresponding path program 1 times [2022-11-16 12:10:55,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:10:55,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250383962] [2022-11-16 12:10:55,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:10:55,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:10:55,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:55,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:10:55,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:10:55,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250383962] [2022-11-16 12:10:55,525 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250383962] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:10:55,526 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:10:55,526 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 12:10:55,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500081366] [2022-11-16 12:10:55,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:10:55,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 12:10:55,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:10:55,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 12:10:55,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:10:55,527 INFO L87 Difference]: Start difference. First operand 402 states and 497 transitions. Second operand has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:10:57,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:10:57,428 INFO L93 Difference]: Finished difference Result 773 states and 1006 transitions. [2022-11-16 12:10:57,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 12:10:57,429 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-11-16 12:10:57,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:10:57,431 INFO L225 Difference]: With dead ends: 773 [2022-11-16 12:10:57,431 INFO L226 Difference]: Without dead ends: 707 [2022-11-16 12:10:57,432 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-11-16 12:10:57,432 INFO L413 NwaCegarLoop]: 391 mSDtfsCounter, 2326 mSDsluCounter, 1638 mSDsCounter, 0 mSdLazyCounter, 1424 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2326 SdHoareTripleChecker+Valid, 2029 SdHoareTripleChecker+Invalid, 1431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:10:57,433 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2326 Valid, 2029 Invalid, 1431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1424 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-16 12:10:57,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2022-11-16 12:10:57,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 402. [2022-11-16 12:10:57,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 386 states have (on average 1.2849740932642486) internal successors, (496), 401 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:10:57,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 496 transitions. [2022-11-16 12:10:57,587 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 496 transitions. Word has length 80 [2022-11-16 12:10:57,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:10:57,588 INFO L495 AbstractCegarLoop]: Abstraction has 402 states and 496 transitions. [2022-11-16 12:10:57,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:10:57,588 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 496 transitions. [2022-11-16 12:10:57,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-16 12:10:57,589 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:10:57,589 INFO L195 NwaCegarLoop]: 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] [2022-11-16 12:10:57,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-11-16 12:10:57,589 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-16 12:10:57,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:10:57,590 INFO L85 PathProgramCache]: Analyzing trace with hash 1836995487, now seen corresponding path program 1 times [2022-11-16 12:10:57,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:10:57,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430406005] [2022-11-16 12:10:57,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:10:57,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:10:57,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:58,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:10:58,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:10:58,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430406005] [2022-11-16 12:10:58,062 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430406005] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:10:58,062 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:10:58,062 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-16 12:10:58,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653241720] [2022-11-16 12:10:58,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:10:58,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 12:10:58,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:10:58,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 12:10:58,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:10:58,064 INFO L87 Difference]: Start difference. First operand 402 states and 496 transitions. Second operand has 12 states, 12 states have (on average 6.666666666666667) internal successors, (80), 11 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:11:01,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:11:01,505 INFO L93 Difference]: Finished difference Result 1041 states and 1388 transitions. [2022-11-16 12:11:01,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-16 12:11:01,506 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.666666666666667) internal successors, (80), 11 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2022-11-16 12:11:01,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:11:01,508 INFO L225 Difference]: With dead ends: 1041 [2022-11-16 12:11:01,508 INFO L226 Difference]: Without dead ends: 1036 [2022-11-16 12:11:01,509 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2022-11-16 12:11:01,509 INFO L413 NwaCegarLoop]: 440 mSDtfsCounter, 4116 mSDsluCounter, 1881 mSDsCounter, 0 mSdLazyCounter, 1789 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4116 SdHoareTripleChecker+Valid, 2321 SdHoareTripleChecker+Invalid, 1932 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 1789 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-16 12:11:01,510 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4116 Valid, 2321 Invalid, 1932 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [143 Valid, 1789 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-16 12:11:01,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1036 states. [2022-11-16 12:11:01,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1036 to 406. [2022-11-16 12:11:01,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 390 states have (on average 1.2820512820512822) internal successors, (500), 405 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:11:01,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 500 transitions. [2022-11-16 12:11:01,701 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 500 transitions. Word has length 80 [2022-11-16 12:11:01,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:11:01,701 INFO L495 AbstractCegarLoop]: Abstraction has 406 states and 500 transitions. [2022-11-16 12:11:01,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.666666666666667) internal successors, (80), 11 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:11:01,701 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 500 transitions. [2022-11-16 12:11:01,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-11-16 12:11:01,702 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:11:01,703 INFO L195 NwaCegarLoop]: 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] [2022-11-16 12:11:01,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-11-16 12:11:01,703 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-16 12:11:01,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:11:01,704 INFO L85 PathProgramCache]: Analyzing trace with hash -1478263256, now seen corresponding path program 1 times [2022-11-16 12:11:01,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:11:01,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31617076] [2022-11-16 12:11:01,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:11:01,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:11:01,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:01,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:11:01,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:11:01,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31617076] [2022-11-16 12:11:01,923 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31617076] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:11:01,923 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:11:01,924 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 12:11:01,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910263133] [2022-11-16 12:11:01,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:11:01,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 12:11:01,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:11:01,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 12:11:01,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:11:01,925 INFO L87 Difference]: Start difference. First operand 406 states and 500 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:11:03,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:11:03,643 INFO L93 Difference]: Finished difference Result 776 states and 1007 transitions. [2022-11-16 12:11:03,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 12:11:03,643 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-11-16 12:11:03,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:11:03,647 INFO L225 Difference]: With dead ends: 776 [2022-11-16 12:11:03,647 INFO L226 Difference]: Without dead ends: 707 [2022-11-16 12:11:03,648 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-16 12:11:03,648 INFO L413 NwaCegarLoop]: 444 mSDtfsCounter, 2746 mSDsluCounter, 1278 mSDsCounter, 0 mSdLazyCounter, 1243 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2746 SdHoareTripleChecker+Valid, 1722 SdHoareTripleChecker+Invalid, 1251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-16 12:11:03,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2746 Valid, 1722 Invalid, 1251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1243 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-16 12:11:03,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2022-11-16 12:11:03,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 402. [2022-11-16 12:11:03,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 386 states have (on average 1.282383419689119) internal successors, (495), 401 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:11:03,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 495 transitions. [2022-11-16 12:11:03,828 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 495 transitions. Word has length 81 [2022-11-16 12:11:03,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:11:03,829 INFO L495 AbstractCegarLoop]: Abstraction has 402 states and 495 transitions. [2022-11-16 12:11:03,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:11:03,829 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 495 transitions. [2022-11-16 12:11:03,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-11-16 12:11:03,830 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:11:03,831 INFO L195 NwaCegarLoop]: 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] [2022-11-16 12:11:03,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-11-16 12:11:03,831 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-16 12:11:03,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:11:03,831 INFO L85 PathProgramCache]: Analyzing trace with hash -397757345, now seen corresponding path program 1 times [2022-11-16 12:11:03,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:11:03,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024280899] [2022-11-16 12:11:03,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:11:03,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:11:03,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:04,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:11:04,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:11:04,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024280899] [2022-11-16 12:11:04,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024280899] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:11:04,087 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:11:04,087 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 12:11:04,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513105796] [2022-11-16 12:11:04,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:11:04,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 12:11:04,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:11:04,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 12:11:04,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:11:04,089 INFO L87 Difference]: Start difference. First operand 402 states and 495 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:11:05,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:11:05,873 INFO L93 Difference]: Finished difference Result 712 states and 910 transitions. [2022-11-16 12:11:05,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 12:11:05,874 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-11-16 12:11:05,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:11:05,877 INFO L225 Difference]: With dead ends: 712 [2022-11-16 12:11:05,877 INFO L226 Difference]: Without dead ends: 707 [2022-11-16 12:11:05,877 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-16 12:11:05,878 INFO L413 NwaCegarLoop]: 447 mSDtfsCounter, 1891 mSDsluCounter, 1332 mSDsCounter, 0 mSdLazyCounter, 1283 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1891 SdHoareTripleChecker+Valid, 1779 SdHoareTripleChecker+Invalid, 1290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-16 12:11:05,879 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1891 Valid, 1779 Invalid, 1290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1283 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-16 12:11:05,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2022-11-16 12:11:06,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 398. [2022-11-16 12:11:06,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 382 states have (on average 1.2827225130890052) internal successors, (490), 397 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:11:06,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 490 transitions. [2022-11-16 12:11:06,086 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 490 transitions. Word has length 81 [2022-11-16 12:11:06,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:11:06,087 INFO L495 AbstractCegarLoop]: Abstraction has 398 states and 490 transitions. [2022-11-16 12:11:06,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:11:06,087 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 490 transitions. [2022-11-16 12:11:06,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-11-16 12:11:06,088 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:11:06,089 INFO L195 NwaCegarLoop]: 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] [2022-11-16 12:11:06,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-11-16 12:11:06,089 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-16 12:11:06,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:11:06,091 INFO L85 PathProgramCache]: Analyzing trace with hash 500388118, now seen corresponding path program 1 times [2022-11-16 12:11:06,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:11:06,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863633875] [2022-11-16 12:11:06,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:11:06,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:11:06,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:06,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:11:06,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:11:06,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863633875] [2022-11-16 12:11:06,349 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863633875] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:11:06,349 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:11:06,349 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 12:11:06,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213341140] [2022-11-16 12:11:06,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:11:06,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 12:11:06,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:11:06,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 12:11:06,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:11:06,351 INFO L87 Difference]: Start difference. First operand 398 states and 490 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:11:08,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:11:08,033 INFO L93 Difference]: Finished difference Result 773 states and 1002 transitions. [2022-11-16 12:11:08,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 12:11:08,033 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-11-16 12:11:08,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:11:08,035 INFO L225 Difference]: With dead ends: 773 [2022-11-16 12:11:08,035 INFO L226 Difference]: Without dead ends: 707 [2022-11-16 12:11:08,036 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-16 12:11:08,036 INFO L413 NwaCegarLoop]: 448 mSDtfsCounter, 2503 mSDsluCounter, 1329 mSDsCounter, 0 mSdLazyCounter, 1283 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2503 SdHoareTripleChecker+Valid, 1777 SdHoareTripleChecker+Invalid, 1290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-16 12:11:08,037 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2503 Valid, 1777 Invalid, 1290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1283 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-16 12:11:08,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2022-11-16 12:11:08,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 394. [2022-11-16 12:11:08,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 378 states have (on average 1.283068783068783) internal successors, (485), 393 states have internal predecessors, (485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:11:08,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 485 transitions. [2022-11-16 12:11:08,206 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 485 transitions. Word has length 81 [2022-11-16 12:11:08,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:11:08,206 INFO L495 AbstractCegarLoop]: Abstraction has 394 states and 485 transitions. [2022-11-16 12:11:08,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:11:08,206 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 485 transitions. [2022-11-16 12:11:08,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-11-16 12:11:08,207 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:11:08,207 INFO L195 NwaCegarLoop]: 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] [2022-11-16 12:11:08,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-11-16 12:11:08,208 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-16 12:11:08,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:11:08,208 INFO L85 PathProgramCache]: Analyzing trace with hash 846117342, now seen corresponding path program 1 times [2022-11-16 12:11:08,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:11:08,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329558189] [2022-11-16 12:11:08,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:11:08,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:11:08,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:08,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:11:08,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:11:08,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329558189] [2022-11-16 12:11:08,461 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329558189] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:11:08,461 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:11:08,462 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 12:11:08,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556778492] [2022-11-16 12:11:08,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:11:08,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 12:11:08,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:11:08,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 12:11:08,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:11:08,467 INFO L87 Difference]: Start difference. First operand 394 states and 485 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:11:10,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:11:10,319 INFO L93 Difference]: Finished difference Result 712 states and 908 transitions. [2022-11-16 12:11:10,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 12:11:10,320 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-11-16 12:11:10,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:11:10,321 INFO L225 Difference]: With dead ends: 712 [2022-11-16 12:11:10,321 INFO L226 Difference]: Without dead ends: 707 [2022-11-16 12:11:10,322 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-16 12:11:10,322 INFO L413 NwaCegarLoop]: 451 mSDtfsCounter, 1873 mSDsluCounter, 1344 mSDsCounter, 0 mSdLazyCounter, 1283 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1873 SdHoareTripleChecker+Valid, 1795 SdHoareTripleChecker+Invalid, 1290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-16 12:11:10,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1873 Valid, 1795 Invalid, 1290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1283 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-16 12:11:10,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2022-11-16 12:11:10,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 390. [2022-11-16 12:11:10,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 374 states have (on average 1.2834224598930482) internal successors, (480), 389 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:11:10,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 480 transitions. [2022-11-16 12:11:10,484 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 480 transitions. Word has length 81 [2022-11-16 12:11:10,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:11:10,484 INFO L495 AbstractCegarLoop]: Abstraction has 390 states and 480 transitions. [2022-11-16 12:11:10,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:11:10,484 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 480 transitions. [2022-11-16 12:11:10,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-11-16 12:11:10,485 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:11:10,485 INFO L195 NwaCegarLoop]: 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] [2022-11-16 12:11:10,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-11-16 12:11:10,485 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-16 12:11:10,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:11:10,485 INFO L85 PathProgramCache]: Analyzing trace with hash 1125287833, now seen corresponding path program 1 times [2022-11-16 12:11:10,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:11:10,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694805229] [2022-11-16 12:11:10,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:11:10,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:11:10,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:11,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:11:11,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:11:11,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694805229] [2022-11-16 12:11:11,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694805229] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:11:11,080 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:11:11,080 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-16 12:11:11,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247203658] [2022-11-16 12:11:11,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:11:11,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 12:11:11,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:11:11,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 12:11:11,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:11:11,081 INFO L87 Difference]: Start difference. First operand 390 states and 480 transitions. Second operand has 11 states, 11 states have (on average 7.454545454545454) internal successors, (82), 11 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:11:13,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:11:13,089 INFO L93 Difference]: Finished difference Result 1027 states and 1321 transitions. [2022-11-16 12:11:13,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 12:11:13,089 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.454545454545454) internal successors, (82), 11 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2022-11-16 12:11:13,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:11:13,091 INFO L225 Difference]: With dead ends: 1027 [2022-11-16 12:11:13,091 INFO L226 Difference]: Without dead ends: 846 [2022-11-16 12:11:13,091 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=147, Invalid=359, Unknown=0, NotChecked=0, Total=506 [2022-11-16 12:11:13,092 INFO L413 NwaCegarLoop]: 546 mSDtfsCounter, 2584 mSDsluCounter, 2011 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2584 SdHoareTripleChecker+Valid, 2557 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-16 12:11:13,092 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2584 Valid, 2557 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 507 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-16 12:11:13,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 846 states. [2022-11-16 12:11:13,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 846 to 273. [2022-11-16 12:11:13,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 262 states have (on average 1.2709923664122138) internal successors, (333), 272 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:11:13,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 333 transitions. [2022-11-16 12:11:13,230 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 333 transitions. Word has length 82 [2022-11-16 12:11:13,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:11:13,230 INFO L495 AbstractCegarLoop]: Abstraction has 273 states and 333 transitions. [2022-11-16 12:11:13,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.454545454545454) internal successors, (82), 11 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:11:13,231 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 333 transitions. [2022-11-16 12:11:13,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-11-16 12:11:13,231 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:11:13,231 INFO L195 NwaCegarLoop]: 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] [2022-11-16 12:11:13,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-11-16 12:11:13,232 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-16 12:11:13,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:11:13,232 INFO L85 PathProgramCache]: Analyzing trace with hash 996849594, now seen corresponding path program 1 times [2022-11-16 12:11:13,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:11:13,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804741814] [2022-11-16 12:11:13,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:11:13,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:11:13,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:13,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:11:13,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:11:13,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804741814] [2022-11-16 12:11:13,980 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804741814] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:11:13,980 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:11:13,980 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 12:11:13,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539231031] [2022-11-16 12:11:13,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:11:13,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 12:11:13,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:11:13,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 12:11:13,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:11:13,981 INFO L87 Difference]: Start difference. First operand 273 states and 333 transitions. Second operand has 12 states, 12 states have (on average 6.833333333333333) internal successors, (82), 12 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:11:15,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:11:15,828 INFO L93 Difference]: Finished difference Result 786 states and 1055 transitions. [2022-11-16 12:11:15,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-16 12:11:15,829 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.833333333333333) internal successors, (82), 12 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2022-11-16 12:11:15,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:11:15,831 INFO L225 Difference]: With dead ends: 786 [2022-11-16 12:11:15,831 INFO L226 Difference]: Without dead ends: 689 [2022-11-16 12:11:15,831 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-11-16 12:11:15,832 INFO L413 NwaCegarLoop]: 745 mSDtfsCounter, 2058 mSDsluCounter, 3103 mSDsCounter, 0 mSdLazyCounter, 558 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2058 SdHoareTripleChecker+Valid, 3848 SdHoareTripleChecker+Invalid, 563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-16 12:11:15,832 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2058 Valid, 3848 Invalid, 563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 558 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-16 12:11:15,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 689 states. [2022-11-16 12:11:15,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 689 to 240. [2022-11-16 12:11:15,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 232 states have (on average 1.2629310344827587) internal successors, (293), 239 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:11:15,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 293 transitions. [2022-11-16 12:11:15,983 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 293 transitions. Word has length 82 [2022-11-16 12:11:15,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:11:15,984 INFO L495 AbstractCegarLoop]: Abstraction has 240 states and 293 transitions. [2022-11-16 12:11:15,984 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.833333333333333) internal successors, (82), 12 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:11:15,984 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 293 transitions. [2022-11-16 12:11:15,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-11-16 12:11:15,984 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:11:15,984 INFO L195 NwaCegarLoop]: 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] [2022-11-16 12:11:15,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-11-16 12:11:15,985 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-16 12:11:15,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:11:15,985 INFO L85 PathProgramCache]: Analyzing trace with hash 504555190, now seen corresponding path program 1 times [2022-11-16 12:11:15,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:11:15,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68469376] [2022-11-16 12:11:15,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:11:15,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:11:16,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:16,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:11:16,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:11:16,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68469376] [2022-11-16 12:11:16,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68469376] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:11:16,717 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:11:16,717 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 12:11:16,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967913316] [2022-11-16 12:11:16,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:11:16,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 12:11:16,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:11:16,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 12:11:16,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:11:16,718 INFO L87 Difference]: Start difference. First operand 240 states and 293 transitions. Second operand has 13 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 13 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:11:18,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:11:18,513 INFO L93 Difference]: Finished difference Result 612 states and 786 transitions. [2022-11-16 12:11:18,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 12:11:18,515 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 13 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2022-11-16 12:11:18,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:11:18,516 INFO L225 Difference]: With dead ends: 612 [2022-11-16 12:11:18,517 INFO L226 Difference]: Without dead ends: 544 [2022-11-16 12:11:18,517 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=141, Invalid=411, Unknown=0, NotChecked=0, Total=552 [2022-11-16 12:11:18,518 INFO L413 NwaCegarLoop]: 278 mSDtfsCounter, 1817 mSDsluCounter, 1843 mSDsCounter, 0 mSdLazyCounter, 598 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1817 SdHoareTripleChecker+Valid, 2121 SdHoareTripleChecker+Invalid, 603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 598 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-16 12:11:18,518 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1817 Valid, 2121 Invalid, 603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 598 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-16 12:11:18,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2022-11-16 12:11:18,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 236. [2022-11-16 12:11:18,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 229 states have (on average 1.25764192139738) internal successors, (288), 235 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:11:18,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 288 transitions. [2022-11-16 12:11:18,661 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 288 transitions. Word has length 82 [2022-11-16 12:11:18,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:11:18,661 INFO L495 AbstractCegarLoop]: Abstraction has 236 states and 288 transitions. [2022-11-16 12:11:18,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 13 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:11:18,661 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 288 transitions. [2022-11-16 12:11:18,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-11-16 12:11:18,662 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:11:18,662 INFO L195 NwaCegarLoop]: 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] [2022-11-16 12:11:18,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-11-16 12:11:18,662 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-16 12:11:18,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:11:18,663 INFO L85 PathProgramCache]: Analyzing trace with hash -1900616581, now seen corresponding path program 1 times [2022-11-16 12:11:18,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:11:18,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728725541] [2022-11-16 12:11:18,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:11:18,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:11:18,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:19,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:11:19,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:11:19,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728725541] [2022-11-16 12:11:19,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728725541] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:11:19,804 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:11:19,804 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-16 12:11:19,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640630967] [2022-11-16 12:11:19,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:11:19,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-16 12:11:19,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:11:19,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-16 12:11:19,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2022-11-16 12:11:19,805 INFO L87 Difference]: Start difference. First operand 236 states and 288 transitions. Second operand has 17 states, 17 states have (on average 4.823529411764706) internal successors, (82), 17 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:11:22,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:11:22,788 INFO L93 Difference]: Finished difference Result 789 states and 1053 transitions. [2022-11-16 12:11:22,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-16 12:11:22,789 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 4.823529411764706) internal successors, (82), 17 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2022-11-16 12:11:22,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:11:22,790 INFO L225 Difference]: With dead ends: 789 [2022-11-16 12:11:22,790 INFO L226 Difference]: Without dead ends: 666 [2022-11-16 12:11:22,791 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=275, Invalid=985, Unknown=0, NotChecked=0, Total=1260 [2022-11-16 12:11:22,791 INFO L413 NwaCegarLoop]: 593 mSDtfsCounter, 2052 mSDsluCounter, 4523 mSDsCounter, 0 mSdLazyCounter, 1166 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2052 SdHoareTripleChecker+Valid, 5116 SdHoareTripleChecker+Invalid, 1175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:11:22,791 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2052 Valid, 5116 Invalid, 1175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1166 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-16 12:11:22,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2022-11-16 12:11:22,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 212. [2022-11-16 12:11:22,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 206 states have (on average 1.2475728155339805) internal successors, (257), 211 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:11:22,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 257 transitions. [2022-11-16 12:11:22,935 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 257 transitions. Word has length 82 [2022-11-16 12:11:22,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:11:22,935 INFO L495 AbstractCegarLoop]: Abstraction has 212 states and 257 transitions. [2022-11-16 12:11:22,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 4.823529411764706) internal successors, (82), 17 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:11:22,936 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 257 transitions. [2022-11-16 12:11:22,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-11-16 12:11:22,936 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:11:22,936 INFO L195 NwaCegarLoop]: 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] [2022-11-16 12:11:22,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-11-16 12:11:22,937 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-16 12:11:22,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:11:22,937 INFO L85 PathProgramCache]: Analyzing trace with hash -823147502, now seen corresponding path program 1 times [2022-11-16 12:11:22,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:11:22,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298879344] [2022-11-16 12:11:22,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:11:22,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:11:22,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:23,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:11:23,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:11:23,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298879344] [2022-11-16 12:11:23,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298879344] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:11:23,249 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:11:23,249 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 12:11:23,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914543392] [2022-11-16 12:11:23,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:11:23,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 12:11:23,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:11:23,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 12:11:23,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:11:23,252 INFO L87 Difference]: Start difference. First operand 212 states and 257 transitions. Second operand has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:11:24,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:11:24,246 INFO L93 Difference]: Finished difference Result 322 states and 400 transitions. [2022-11-16 12:11:24,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 12:11:24,247 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2022-11-16 12:11:24,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:11:24,247 INFO L225 Difference]: With dead ends: 322 [2022-11-16 12:11:24,248 INFO L226 Difference]: Without dead ends: 315 [2022-11-16 12:11:24,248 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=218, Unknown=0, NotChecked=0, Total=306 [2022-11-16 12:11:24,248 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 1156 mSDsluCounter, 681 mSDsCounter, 0 mSdLazyCounter, 568 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1156 SdHoareTripleChecker+Valid, 845 SdHoareTripleChecker+Invalid, 575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 12:11:24,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1156 Valid, 845 Invalid, 575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 568 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 12:11:24,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2022-11-16 12:11:24,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 212. [2022-11-16 12:11:24,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 206 states have (on average 1.2427184466019416) internal successors, (256), 211 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:11:24,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 256 transitions. [2022-11-16 12:11:24,389 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 256 transitions. Word has length 83 [2022-11-16 12:11:24,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:11:24,390 INFO L495 AbstractCegarLoop]: Abstraction has 212 states and 256 transitions. [2022-11-16 12:11:24,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:11:24,390 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 256 transitions. [2022-11-16 12:11:24,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-11-16 12:11:24,391 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:11:24,391 INFO L195 NwaCegarLoop]: 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] [2022-11-16 12:11:24,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-11-16 12:11:24,392 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-16 12:11:24,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:11:24,393 INFO L85 PathProgramCache]: Analyzing trace with hash -892730834, now seen corresponding path program 1 times [2022-11-16 12:11:24,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:11:24,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010824430] [2022-11-16 12:11:24,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:11:24,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:11:24,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:24,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:11:24,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:11:24,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010824430] [2022-11-16 12:11:24,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010824430] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:11:24,622 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:11:24,622 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 12:11:24,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411717718] [2022-11-16 12:11:24,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:11:24,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 12:11:24,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:11:24,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 12:11:24,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:11:24,624 INFO L87 Difference]: Start difference. First operand 212 states and 256 transitions. Second operand has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:11:26,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:11:26,021 INFO L93 Difference]: Finished difference Result 527 states and 702 transitions. [2022-11-16 12:11:26,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 12:11:26,021 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2022-11-16 12:11:26,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:11:26,022 INFO L225 Difference]: With dead ends: 527 [2022-11-16 12:11:26,022 INFO L226 Difference]: Without dead ends: 445 [2022-11-16 12:11:26,023 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2022-11-16 12:11:26,023 INFO L413 NwaCegarLoop]: 286 mSDtfsCounter, 822 mSDsluCounter, 751 mSDsCounter, 0 mSdLazyCounter, 743 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 822 SdHoareTripleChecker+Valid, 1037 SdHoareTripleChecker+Invalid, 750 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 743 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-16 12:11:26,023 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [822 Valid, 1037 Invalid, 750 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 743 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-16 12:11:26,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2022-11-16 12:11:26,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 212. [2022-11-16 12:11:26,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 206 states have (on average 1.2378640776699028) internal successors, (255), 211 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:11:26,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 255 transitions. [2022-11-16 12:11:26,172 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 255 transitions. Word has length 83 [2022-11-16 12:11:26,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:11:26,172 INFO L495 AbstractCegarLoop]: Abstraction has 212 states and 255 transitions. [2022-11-16 12:11:26,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:11:26,173 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 255 transitions. [2022-11-16 12:11:26,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-11-16 12:11:26,173 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:11:26,173 INFO L195 NwaCegarLoop]: 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] [2022-11-16 12:11:26,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-11-16 12:11:26,173 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-16 12:11:26,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:11:26,174 INFO L85 PathProgramCache]: Analyzing trace with hash -993145316, now seen corresponding path program 1 times [2022-11-16 12:11:26,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:11:26,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848860424] [2022-11-16 12:11:26,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:11:26,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:11:26,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:26,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:11:26,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:11:26,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848860424] [2022-11-16 12:11:26,853 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848860424] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:11:26,853 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:11:26,854 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 12:11:26,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516598498] [2022-11-16 12:11:26,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:11:26,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 12:11:26,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:11:26,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 12:11:26,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:11:26,855 INFO L87 Difference]: Start difference. First operand 212 states and 255 transitions. Second operand has 13 states, 13 states have (on average 6.384615384615385) internal successors, (83), 13 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:11:28,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:11:28,771 INFO L93 Difference]: Finished difference Result 495 states and 629 transitions. [2022-11-16 12:11:28,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-16 12:11:28,771 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.384615384615385) internal successors, (83), 13 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2022-11-16 12:11:28,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:11:28,772 INFO L225 Difference]: With dead ends: 495 [2022-11-16 12:11:28,772 INFO L226 Difference]: Without dead ends: 491 [2022-11-16 12:11:28,773 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=158, Invalid=492, Unknown=0, NotChecked=0, Total=650 [2022-11-16 12:11:28,774 INFO L413 NwaCegarLoop]: 249 mSDtfsCounter, 1603 mSDsluCounter, 1657 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1603 SdHoareTripleChecker+Valid, 1906 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 12:11:28,774 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1603 Valid, 1906 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 12:11:28,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2022-11-16 12:11:28,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 208. [2022-11-16 12:11:28,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 203 states have (on average 1.2364532019704433) internal successors, (251), 207 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:11:28,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 251 transitions. [2022-11-16 12:11:28,933 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 251 transitions. Word has length 83 [2022-11-16 12:11:28,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:11:28,933 INFO L495 AbstractCegarLoop]: Abstraction has 208 states and 251 transitions. [2022-11-16 12:11:28,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.384615384615385) internal successors, (83), 13 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:11:28,933 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 251 transitions. [2022-11-16 12:11:28,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-11-16 12:11:28,934 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:11:28,934 INFO L195 NwaCegarLoop]: 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] [2022-11-16 12:11:28,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-11-16 12:11:28,934 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-16 12:11:28,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:11:28,935 INFO L85 PathProgramCache]: Analyzing trace with hash 2054330386, now seen corresponding path program 1 times [2022-11-16 12:11:28,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:11:28,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415661377] [2022-11-16 12:11:28,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:11:28,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:11:28,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:29,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:11:29,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:11:29,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415661377] [2022-11-16 12:11:29,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415661377] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:11:29,582 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:11:29,582 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 12:11:29,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644100893] [2022-11-16 12:11:29,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:11:29,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 12:11:29,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:11:29,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 12:11:29,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:11:29,583 INFO L87 Difference]: Start difference. First operand 208 states and 251 transitions. Second operand has 13 states, 13 states have (on average 6.384615384615385) internal successors, (83), 13 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:11:31,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:11:31,208 INFO L93 Difference]: Finished difference Result 541 states and 707 transitions. [2022-11-16 12:11:31,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 12:11:31,209 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.384615384615385) internal successors, (83), 13 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2022-11-16 12:11:31,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:11:31,210 INFO L225 Difference]: With dead ends: 541 [2022-11-16 12:11:31,210 INFO L226 Difference]: Without dead ends: 476 [2022-11-16 12:11:31,211 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=141, Invalid=411, Unknown=0, NotChecked=0, Total=552 [2022-11-16 12:11:31,211 INFO L413 NwaCegarLoop]: 335 mSDtfsCounter, 1615 mSDsluCounter, 1685 mSDsCounter, 0 mSdLazyCounter, 430 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1615 SdHoareTripleChecker+Valid, 2020 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 12:11:31,211 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1615 Valid, 2020 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 430 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 12:11:31,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2022-11-16 12:11:31,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 207. [2022-11-16 12:11:31,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 202 states have (on average 1.2326732673267327) internal successors, (249), 206 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) [2022-11-16 12:11:31,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 249 transitions. [2022-11-16 12:11:31,371 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 249 transitions. Word has length 83 [2022-11-16 12:11:31,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:11:31,371 INFO L495 AbstractCegarLoop]: Abstraction has 207 states and 249 transitions. [2022-11-16 12:11:31,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.384615384615385) internal successors, (83), 13 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:11:31,372 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 249 transitions. [2022-11-16 12:11:31,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-11-16 12:11:31,372 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:11:31,372 INFO L195 NwaCegarLoop]: 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] [2022-11-16 12:11:31,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-11-16 12:11:31,372 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-16 12:11:31,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:11:31,373 INFO L85 PathProgramCache]: Analyzing trace with hash 1521304832, now seen corresponding path program 1 times [2022-11-16 12:11:31,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:11:31,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542370875] [2022-11-16 12:11:31,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:11:31,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:11:31,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:32,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:11:32,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:11:32,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542370875] [2022-11-16 12:11:32,106 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542370875] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:11:32,106 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:11:32,106 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 12:11:32,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604352065] [2022-11-16 12:11:32,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:11:32,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 12:11:32,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:11:32,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 12:11:32,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:11:32,108 INFO L87 Difference]: Start difference. First operand 207 states and 249 transitions. Second operand has 13 states, 13 states have (on average 6.384615384615385) internal successors, (83), 13 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:11:33,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:11:33,957 INFO L93 Difference]: Finished difference Result 488 states and 632 transitions. [2022-11-16 12:11:33,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 12:11:33,958 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.384615384615385) internal successors, (83), 13 states have internal predecessors, (83), 0 states have call successors, (0), 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 83 [2022-11-16 12:11:33,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:11:33,965 INFO L225 Difference]: With dead ends: 488 [2022-11-16 12:11:33,965 INFO L226 Difference]: Without dead ends: 478 [2022-11-16 12:11:33,966 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=141, Invalid=411, Unknown=0, NotChecked=0, Total=552 [2022-11-16 12:11:33,966 INFO L413 NwaCegarLoop]: 553 mSDtfsCounter, 1168 mSDsluCounter, 2828 mSDsCounter, 0 mSdLazyCounter, 514 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1168 SdHoareTripleChecker+Valid, 3381 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 514 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 12:11:33,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1168 Valid, 3381 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 514 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 12:11:33,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2022-11-16 12:11:34,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 197. [2022-11-16 12:11:34,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 193 states have (on average 1.233160621761658) internal successors, (238), 196 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:11:34,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 238 transitions. [2022-11-16 12:11:34,122 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 238 transitions. Word has length 83 [2022-11-16 12:11:34,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:11:34,123 INFO L495 AbstractCegarLoop]: Abstraction has 197 states and 238 transitions. [2022-11-16 12:11:34,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.384615384615385) internal successors, (83), 13 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:11:34,123 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 238 transitions. [2022-11-16 12:11:34,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-16 12:11:34,124 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:11:34,124 INFO L195 NwaCegarLoop]: 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] [2022-11-16 12:11:34,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-11-16 12:11:34,124 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-16 12:11:34,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:11:34,125 INFO L85 PathProgramCache]: Analyzing trace with hash -7222703, now seen corresponding path program 1 times [2022-11-16 12:11:34,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:11:34,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669981849] [2022-11-16 12:11:34,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:11:34,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:11:34,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:34,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:11:34,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:11:34,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669981849] [2022-11-16 12:11:34,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669981849] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:11:34,641 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:11:34,642 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-16 12:11:34,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653797492] [2022-11-16 12:11:34,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:11:34,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 12:11:34,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:11:34,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 12:11:34,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:11:34,643 INFO L87 Difference]: Start difference. First operand 197 states and 238 transitions. Second operand has 12 states, 12 states have (on average 7.0) internal successors, (84), 11 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:11:36,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:11:36,670 INFO L93 Difference]: Finished difference Result 472 states and 619 transitions. [2022-11-16 12:11:36,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-16 12:11:36,671 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.0) internal successors, (84), 11 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2022-11-16 12:11:36,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:11:36,672 INFO L225 Difference]: With dead ends: 472 [2022-11-16 12:11:36,672 INFO L226 Difference]: Without dead ends: 465 [2022-11-16 12:11:36,673 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=244, Invalid=626, Unknown=0, NotChecked=0, Total=870 [2022-11-16 12:11:36,673 INFO L413 NwaCegarLoop]: 217 mSDtfsCounter, 1879 mSDsluCounter, 757 mSDsCounter, 0 mSdLazyCounter, 727 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1879 SdHoareTripleChecker+Valid, 974 SdHoareTripleChecker+Invalid, 773 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 727 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-16 12:11:36,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1879 Valid, 974 Invalid, 773 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 727 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-16 12:11:36,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2022-11-16 12:11:36,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 201. [2022-11-16 12:11:36,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 197 states have (on average 1.2284263959390862) internal successors, (242), 200 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:11:36,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 242 transitions. [2022-11-16 12:11:36,818 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 242 transitions. Word has length 84 [2022-11-16 12:11:36,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:11:36,818 INFO L495 AbstractCegarLoop]: Abstraction has 201 states and 242 transitions. [2022-11-16 12:11:36,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.0) internal successors, (84), 11 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:11:36,818 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 242 transitions. [2022-11-16 12:11:36,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-11-16 12:11:36,818 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:11:36,819 INFO L195 NwaCegarLoop]: 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] [2022-11-16 12:11:36,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-11-16 12:11:36,819 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-16 12:11:36,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:11:36,820 INFO L85 PathProgramCache]: Analyzing trace with hash -1767300528, now seen corresponding path program 1 times [2022-11-16 12:11:36,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:11:36,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008016007] [2022-11-16 12:11:36,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:11:36,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:11:36,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:37,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:11:37,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:11:37,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008016007] [2022-11-16 12:11:37,352 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008016007] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:11:37,352 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:11:37,352 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 12:11:37,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971128655] [2022-11-16 12:11:37,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:11:37,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 12:11:37,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:11:37,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 12:11:37,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:11:37,354 INFO L87 Difference]: Start difference. First operand 201 states and 242 transitions. Second operand has 13 states, 13 states have (on average 6.538461538461538) internal successors, (85), 13 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:11:39,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:11:39,810 INFO L93 Difference]: Finished difference Result 722 states and 980 transitions. [2022-11-16 12:11:39,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-16 12:11:39,811 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.538461538461538) internal successors, (85), 13 states have internal predecessors, (85), 0 states have call successors, (0), 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 85 [2022-11-16 12:11:39,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:11:39,813 INFO L225 Difference]: With dead ends: 722 [2022-11-16 12:11:39,813 INFO L226 Difference]: Without dead ends: 716 [2022-11-16 12:11:39,814 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2022-11-16 12:11:39,814 INFO L413 NwaCegarLoop]: 476 mSDtfsCounter, 1603 mSDsluCounter, 3242 mSDsCounter, 0 mSdLazyCounter, 766 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1603 SdHoareTripleChecker+Valid, 3718 SdHoareTripleChecker+Invalid, 772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 766 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-16 12:11:39,815 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1603 Valid, 3718 Invalid, 772 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 766 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-16 12:11:39,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2022-11-16 12:11:39,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 195. [2022-11-16 12:11:39,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 192 states have (on average 1.2291666666666667) internal successors, (236), 194 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:11:39,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 236 transitions. [2022-11-16 12:11:39,988 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 236 transitions. Word has length 85 [2022-11-16 12:11:39,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:11:39,989 INFO L495 AbstractCegarLoop]: Abstraction has 195 states and 236 transitions. [2022-11-16 12:11:39,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.538461538461538) internal successors, (85), 13 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:11:39,989 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 236 transitions. [2022-11-16 12:11:39,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-11-16 12:11:39,990 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:11:39,990 INFO L195 NwaCegarLoop]: 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] [2022-11-16 12:11:39,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-11-16 12:11:39,991 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-16 12:11:39,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:11:39,991 INFO L85 PathProgramCache]: Analyzing trace with hash 645292930, now seen corresponding path program 1 times [2022-11-16 12:11:39,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:11:39,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179896816] [2022-11-16 12:11:39,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:11:39,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:11:40,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:41,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:11:41,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:11:41,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179896816] [2022-11-16 12:11:41,957 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179896816] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:11:41,958 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:11:41,958 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-11-16 12:11:41,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814015967] [2022-11-16 12:11:41,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:11:41,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-11-16 12:11:41,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:11:41,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-11-16 12:11:41,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=581, Unknown=0, NotChecked=0, Total=650 [2022-11-16 12:11:41,959 INFO L87 Difference]: Start difference. First operand 195 states and 236 transitions. Second operand has 26 states, 26 states have (on average 3.269230769230769) internal successors, (85), 26 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:11:49,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:11:49,337 INFO L93 Difference]: Finished difference Result 741 states and 957 transitions. [2022-11-16 12:11:49,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-11-16 12:11:49,337 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.269230769230769) internal successors, (85), 26 states have internal predecessors, (85), 0 states have call successors, (0), 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 85 [2022-11-16 12:11:49,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:11:49,339 INFO L225 Difference]: With dead ends: 741 [2022-11-16 12:11:49,339 INFO L226 Difference]: Without dead ends: 733 [2022-11-16 12:11:49,340 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 343 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=365, Invalid=1891, Unknown=0, NotChecked=0, Total=2256 [2022-11-16 12:11:49,340 INFO L413 NwaCegarLoop]: 635 mSDtfsCounter, 2206 mSDsluCounter, 8531 mSDsCounter, 0 mSdLazyCounter, 4644 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2206 SdHoareTripleChecker+Valid, 9166 SdHoareTripleChecker+Invalid, 4670 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 4644 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:11:49,341 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2206 Valid, 9166 Invalid, 4670 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [26 Valid, 4644 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-11-16 12:11:49,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 733 states. [2022-11-16 12:11:49,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 733 to 214. [2022-11-16 12:11:49,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 211 states have (on average 1.2274881516587677) internal successors, (259), 213 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:11:49,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 259 transitions. [2022-11-16 12:11:49,548 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 259 transitions. Word has length 85 [2022-11-16 12:11:49,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:11:49,548 INFO L495 AbstractCegarLoop]: Abstraction has 214 states and 259 transitions. [2022-11-16 12:11:49,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.269230769230769) internal successors, (85), 26 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:11:49,549 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 259 transitions. [2022-11-16 12:11:49,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-11-16 12:11:49,549 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:11:49,549 INFO L195 NwaCegarLoop]: 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] [2022-11-16 12:11:49,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-11-16 12:11:49,549 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-16 12:11:49,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:11:49,550 INFO L85 PathProgramCache]: Analyzing trace with hash 1708289536, now seen corresponding path program 1 times [2022-11-16 12:11:49,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:11:49,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820598163] [2022-11-16 12:11:49,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:11:49,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:11:49,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:49,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:11:49,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:11:49,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820598163] [2022-11-16 12:11:49,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820598163] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:11:49,741 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:11:49,741 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 12:11:49,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116983463] [2022-11-16 12:11:49,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:11:49,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 12:11:49,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:11:49,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 12:11:49,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:11:49,742 INFO L87 Difference]: Start difference. First operand 214 states and 259 transitions. Second operand has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:11:50,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:11:50,833 INFO L93 Difference]: Finished difference Result 310 states and 387 transitions. [2022-11-16 12:11:50,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 12:11:50,833 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 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 85 [2022-11-16 12:11:50,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:11:50,834 INFO L225 Difference]: With dead ends: 310 [2022-11-16 12:11:50,834 INFO L226 Difference]: Without dead ends: 303 [2022-11-16 12:11:50,835 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=101, Invalid=241, Unknown=0, NotChecked=0, Total=342 [2022-11-16 12:11:50,835 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 511 mSDsluCounter, 619 mSDsCounter, 0 mSdLazyCounter, 609 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 511 SdHoareTripleChecker+Valid, 825 SdHoareTripleChecker+Invalid, 614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 12:11:50,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [511 Valid, 825 Invalid, 614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 609 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 12:11:50,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2022-11-16 12:11:51,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 210. [2022-11-16 12:11:51,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 207 states have (on average 1.2270531400966183) internal successors, (254), 209 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:11:51,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 254 transitions. [2022-11-16 12:11:51,046 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 254 transitions. Word has length 85 [2022-11-16 12:11:51,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:11:51,046 INFO L495 AbstractCegarLoop]: Abstraction has 210 states and 254 transitions. [2022-11-16 12:11:51,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:11:51,046 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 254 transitions. [2022-11-16 12:11:51,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-11-16 12:11:51,047 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:11:51,047 INFO L195 NwaCegarLoop]: 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] [2022-11-16 12:11:51,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-11-16 12:11:51,048 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-16 12:11:51,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:11:51,048 INFO L85 PathProgramCache]: Analyzing trace with hash 1988293680, now seen corresponding path program 1 times [2022-11-16 12:11:51,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:11:51,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062109964] [2022-11-16 12:11:51,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:11:51,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:11:51,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:52,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:11:52,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:11:52,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062109964] [2022-11-16 12:11:52,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062109964] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:11:52,181 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:11:52,181 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-11-16 12:11:52,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283052913] [2022-11-16 12:11:52,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:11:52,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-16 12:11:52,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:11:52,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-16 12:11:52,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2022-11-16 12:11:52,183 INFO L87 Difference]: Start difference. First operand 210 states and 254 transitions. Second operand has 17 states, 17 states have (on average 5.0588235294117645) internal successors, (86), 17 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:11:55,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:11:55,115 INFO L93 Difference]: Finished difference Result 404 states and 515 transitions. [2022-11-16 12:11:55,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-16 12:11:55,115 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.0588235294117645) internal successors, (86), 17 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2022-11-16 12:11:55,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:11:55,116 INFO L225 Difference]: With dead ends: 404 [2022-11-16 12:11:55,116 INFO L226 Difference]: Without dead ends: 396 [2022-11-16 12:11:55,117 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=249, Invalid=873, Unknown=0, NotChecked=0, Total=1122 [2022-11-16 12:11:55,118 INFO L413 NwaCegarLoop]: 400 mSDtfsCounter, 1489 mSDsluCounter, 3308 mSDsCounter, 0 mSdLazyCounter, 1116 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1489 SdHoareTripleChecker+Valid, 3708 SdHoareTripleChecker+Invalid, 1125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:11:55,118 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1489 Valid, 3708 Invalid, 1125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1116 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-16 12:11:55,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2022-11-16 12:11:55,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 191. [2022-11-16 12:11:55,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 188 states have (on average 1.2234042553191489) internal successors, (230), 190 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:11:55,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 230 transitions. [2022-11-16 12:11:55,306 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 230 transitions. Word has length 86 [2022-11-16 12:11:55,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:11:55,306 INFO L495 AbstractCegarLoop]: Abstraction has 191 states and 230 transitions. [2022-11-16 12:11:55,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.0588235294117645) internal successors, (86), 17 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:11:55,306 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 230 transitions. [2022-11-16 12:11:55,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-11-16 12:11:55,307 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:11:55,307 INFO L195 NwaCegarLoop]: 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] [2022-11-16 12:11:55,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-11-16 12:11:55,307 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-16 12:11:55,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:11:55,308 INFO L85 PathProgramCache]: Analyzing trace with hash -479136402, now seen corresponding path program 1 times [2022-11-16 12:11:55,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:11:55,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937558089] [2022-11-16 12:11:55,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:11:55,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:11:55,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:55,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:11:55,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:11:55,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937558089] [2022-11-16 12:11:55,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937558089] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:11:55,831 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:11:55,831 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 12:11:55,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629219882] [2022-11-16 12:11:55,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:11:55,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 12:11:55,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:11:55,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 12:11:55,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:11:55,833 INFO L87 Difference]: Start difference. First operand 191 states and 230 transitions. Second operand has 12 states, 12 states have (on average 7.166666666666667) internal successors, (86), 12 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:11:57,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:11:57,583 INFO L93 Difference]: Finished difference Result 428 states and 568 transitions. [2022-11-16 12:11:57,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-16 12:11:57,584 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.166666666666667) internal successors, (86), 12 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2022-11-16 12:11:57,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:11:57,585 INFO L225 Difference]: With dead ends: 428 [2022-11-16 12:11:57,585 INFO L226 Difference]: Without dead ends: 416 [2022-11-16 12:11:57,586 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=129, Invalid=377, Unknown=0, NotChecked=0, Total=506 [2022-11-16 12:11:57,586 INFO L413 NwaCegarLoop]: 486 mSDtfsCounter, 972 mSDsluCounter, 2345 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 972 SdHoareTripleChecker+Valid, 2831 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 12:11:57,587 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [972 Valid, 2831 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 499 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 12:11:57,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2022-11-16 12:11:57,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 179. [2022-11-16 12:11:57,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 177 states have (on average 1.231638418079096) internal successors, (218), 178 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:11:57,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 218 transitions. [2022-11-16 12:11:57,766 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 218 transitions. Word has length 86 [2022-11-16 12:11:57,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:11:57,766 INFO L495 AbstractCegarLoop]: Abstraction has 179 states and 218 transitions. [2022-11-16 12:11:57,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.166666666666667) internal successors, (86), 12 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:11:57,767 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 218 transitions. [2022-11-16 12:11:57,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-11-16 12:11:57,767 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:11:57,767 INFO L195 NwaCegarLoop]: 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] [2022-11-16 12:11:57,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-11-16 12:11:57,768 INFO L420 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-16 12:11:57,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:11:57,768 INFO L85 PathProgramCache]: Analyzing trace with hash -1229983071, now seen corresponding path program 1 times [2022-11-16 12:11:57,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:11:57,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343232304] [2022-11-16 12:11:57,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:11:57,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:11:57,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:00,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:12:00,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:12:00,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343232304] [2022-11-16 12:12:00,037 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343232304] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:12:00,038 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:12:00,038 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2022-11-16 12:12:00,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008931306] [2022-11-16 12:12:00,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:12:00,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-11-16 12:12:00,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:12:00,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-11-16 12:12:00,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=632, Unknown=0, NotChecked=0, Total=702 [2022-11-16 12:12:00,039 INFO L87 Difference]: Start difference. First operand 179 states and 218 transitions. Second operand has 27 states, 27 states have (on average 3.185185185185185) internal successors, (86), 27 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:12:07,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:12:07,739 INFO L93 Difference]: Finished difference Result 582 states and 756 transitions. [2022-11-16 12:12:07,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-11-16 12:12:07,739 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 3.185185185185185) internal successors, (86), 27 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2022-11-16 12:12:07,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:12:07,741 INFO L225 Difference]: With dead ends: 582 [2022-11-16 12:12:07,741 INFO L226 Difference]: Without dead ends: 574 [2022-11-16 12:12:07,743 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 452 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=441, Invalid=2315, Unknown=0, NotChecked=0, Total=2756 [2022-11-16 12:12:07,744 INFO L413 NwaCegarLoop]: 478 mSDtfsCounter, 1850 mSDsluCounter, 6360 mSDsCounter, 0 mSdLazyCounter, 3647 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1850 SdHoareTripleChecker+Valid, 6838 SdHoareTripleChecker+Invalid, 3663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 3647 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-11-16 12:12:07,744 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1850 Valid, 6838 Invalid, 3663 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 3647 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-11-16 12:12:07,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2022-11-16 12:12:08,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 199. [2022-11-16 12:12:08,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 197 states have (on average 1.2233502538071066) internal successors, (241), 198 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:12:08,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 241 transitions. [2022-11-16 12:12:08,009 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 241 transitions. Word has length 86 [2022-11-16 12:12:08,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:12:08,009 INFO L495 AbstractCegarLoop]: Abstraction has 199 states and 241 transitions. [2022-11-16 12:12:08,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 3.185185185185185) internal successors, (86), 27 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:12:08,010 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 241 transitions. [2022-11-16 12:12:08,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-11-16 12:12:08,010 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:12:08,011 INFO L195 NwaCegarLoop]: 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] [2022-11-16 12:12:08,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-11-16 12:12:08,011 INFO L420 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-16 12:12:08,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:12:08,012 INFO L85 PathProgramCache]: Analyzing trace with hash 1748334515, now seen corresponding path program 1 times [2022-11-16 12:12:08,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:12:08,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292648989] [2022-11-16 12:12:08,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:12:08,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:12:08,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:10,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:12:10,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:12:10,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292648989] [2022-11-16 12:12:10,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292648989] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:12:10,209 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:12:10,209 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-11-16 12:12:10,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443919241] [2022-11-16 12:12:10,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:12:10,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-16 12:12:10,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:12:10,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-16 12:12:10,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=534, Unknown=0, NotChecked=0, Total=600 [2022-11-16 12:12:10,211 INFO L87 Difference]: Start difference. First operand 199 states and 241 transitions. Second operand has 25 states, 25 states have (on average 3.48) internal successors, (87), 25 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:12:16,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:12:16,916 INFO L93 Difference]: Finished difference Result 576 states and 750 transitions. [2022-11-16 12:12:16,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-16 12:12:16,916 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.48) internal successors, (87), 25 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2022-11-16 12:12:16,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:12:16,918 INFO L225 Difference]: With dead ends: 576 [2022-11-16 12:12:16,918 INFO L226 Difference]: Without dead ends: 568 [2022-11-16 12:12:16,918 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 324 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=481, Invalid=1775, Unknown=0, NotChecked=0, Total=2256 [2022-11-16 12:12:16,919 INFO L413 NwaCegarLoop]: 505 mSDtfsCounter, 2107 mSDsluCounter, 6300 mSDsCounter, 0 mSdLazyCounter, 3005 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2107 SdHoareTripleChecker+Valid, 6805 SdHoareTripleChecker+Invalid, 3021 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 3005 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-11-16 12:12:16,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2107 Valid, 6805 Invalid, 3021 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 3005 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-11-16 12:12:16,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2022-11-16 12:12:17,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 184. [2022-11-16 12:12:17,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 182 states have (on average 1.2252747252747254) internal successors, (223), 183 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:12:17,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 223 transitions. [2022-11-16 12:12:17,128 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 223 transitions. Word has length 87 [2022-11-16 12:12:17,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:12:17,128 INFO L495 AbstractCegarLoop]: Abstraction has 184 states and 223 transitions. [2022-11-16 12:12:17,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.48) internal successors, (87), 25 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:12:17,129 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 223 transitions. [2022-11-16 12:12:17,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-11-16 12:12:17,129 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:12:17,129 INFO L195 NwaCegarLoop]: 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] [2022-11-16 12:12:17,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-11-16 12:12:17,129 INFO L420 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-16 12:12:17,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:12:17,130 INFO L85 PathProgramCache]: Analyzing trace with hash 1516849940, now seen corresponding path program 1 times [2022-11-16 12:12:17,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:12:17,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967948023] [2022-11-16 12:12:17,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:12:17,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:12:17,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:17,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:12:17,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:12:17,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967948023] [2022-11-16 12:12:17,623 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967948023] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:12:17,623 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:12:17,623 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 12:12:17,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031933253] [2022-11-16 12:12:17,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:12:17,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 12:12:17,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:12:17,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 12:12:17,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:12:17,625 INFO L87 Difference]: Start difference. First operand 184 states and 223 transitions. Second operand has 12 states, 12 states have (on average 7.25) internal successors, (87), 12 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:12:19,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:12:19,141 INFO L93 Difference]: Finished difference Result 457 states and 603 transitions. [2022-11-16 12:12:19,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-16 12:12:19,142 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.25) internal successors, (87), 12 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2022-11-16 12:12:19,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:12:19,143 INFO L225 Difference]: With dead ends: 457 [2022-11-16 12:12:19,143 INFO L226 Difference]: Without dead ends: 428 [2022-11-16 12:12:19,143 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2022-11-16 12:12:19,144 INFO L413 NwaCegarLoop]: 508 mSDtfsCounter, 1148 mSDsluCounter, 1706 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1148 SdHoareTripleChecker+Valid, 2214 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 12:12:19,144 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1148 Valid, 2214 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 12:12:19,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2022-11-16 12:12:19,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 155. [2022-11-16 12:12:19,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 154 states have (on average 1.2467532467532467) internal successors, (192), 154 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:12:19,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 192 transitions. [2022-11-16 12:12:19,334 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 192 transitions. Word has length 87 [2022-11-16 12:12:19,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:12:19,334 INFO L495 AbstractCegarLoop]: Abstraction has 155 states and 192 transitions. [2022-11-16 12:12:19,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.25) internal successors, (87), 12 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:12:19,335 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 192 transitions. [2022-11-16 12:12:19,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-11-16 12:12:19,335 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:12:19,336 INFO L195 NwaCegarLoop]: 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] [2022-11-16 12:12:19,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-11-16 12:12:19,336 INFO L420 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-16 12:12:19,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:12:19,336 INFO L85 PathProgramCache]: Analyzing trace with hash 529887998, now seen corresponding path program 1 times [2022-11-16 12:12:19,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:12:19,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309870831] [2022-11-16 12:12:19,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:12:19,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:12:19,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:19,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:12:19,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:12:19,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309870831] [2022-11-16 12:12:19,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309870831] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:12:19,477 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:12:19,477 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:12:19,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397415343] [2022-11-16 12:12:19,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:12:19,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:12:19,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:12:19,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:12:19,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:12:19,478 INFO L87 Difference]: Start difference. First operand 155 states and 192 transitions. Second operand has 7 states, 7 states have (on average 16.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:12:21,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:12:21,025 INFO L93 Difference]: Finished difference Result 795 states and 1142 transitions. [2022-11-16 12:12:21,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 12:12:21,026 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 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 112 [2022-11-16 12:12:21,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:12:21,028 INFO L225 Difference]: With dead ends: 795 [2022-11-16 12:12:21,028 INFO L226 Difference]: Without dead ends: 731 [2022-11-16 12:12:21,028 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-11-16 12:12:21,029 INFO L413 NwaCegarLoop]: 187 mSDtfsCounter, 1483 mSDsluCounter, 1340 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1483 SdHoareTripleChecker+Valid, 1527 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:12:21,029 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1483 Valid, 1527 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:12:21,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 731 states. [2022-11-16 12:12:21,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 731 to 217. [2022-11-16 12:12:21,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 216 states have (on average 1.3148148148148149) internal successors, (284), 216 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:12:21,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 284 transitions. [2022-11-16 12:12:21,367 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 284 transitions. Word has length 112 [2022-11-16 12:12:21,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:12:21,367 INFO L495 AbstractCegarLoop]: Abstraction has 217 states and 284 transitions. [2022-11-16 12:12:21,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 7 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:12:21,368 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 284 transitions. [2022-11-16 12:12:21,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-16 12:12:21,368 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:12:21,369 INFO L195 NwaCegarLoop]: 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] [2022-11-16 12:12:21,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-11-16 12:12:21,369 INFO L420 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-16 12:12:21,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:12:21,369 INFO L85 PathProgramCache]: Analyzing trace with hash 257111127, now seen corresponding path program 1 times [2022-11-16 12:12:21,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:12:21,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009187835] [2022-11-16 12:12:21,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:12:21,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:12:21,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:21,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:12:21,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:12:21,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009187835] [2022-11-16 12:12:21,496 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009187835] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:12:21,496 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:12:21,496 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:12:21,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552293892] [2022-11-16 12:12:21,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:12:21,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:12:21,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:12:21,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:12:21,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:12:21,497 INFO L87 Difference]: Start difference. First operand 217 states and 284 transitions. Second operand has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:12:23,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:12:23,350 INFO L93 Difference]: Finished difference Result 911 states and 1312 transitions. [2022-11-16 12:12:23,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:12:23,350 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2022-11-16 12:12:23,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:12:23,351 INFO L225 Difference]: With dead ends: 911 [2022-11-16 12:12:23,351 INFO L226 Difference]: Without dead ends: 785 [2022-11-16 12:12:23,352 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:12:23,352 INFO L413 NwaCegarLoop]: 271 mSDtfsCounter, 1186 mSDsluCounter, 683 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1186 SdHoareTripleChecker+Valid, 954 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:12:23,352 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1186 Valid, 954 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:12:23,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 785 states. [2022-11-16 12:12:23,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 785 to 341. [2022-11-16 12:12:23,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 340 states have (on average 1.3794117647058823) internal successors, (469), 340 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:12:23,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 469 transitions. [2022-11-16 12:12:23,964 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 469 transitions. Word has length 114 [2022-11-16 12:12:23,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:12:23,964 INFO L495 AbstractCegarLoop]: Abstraction has 341 states and 469 transitions. [2022-11-16 12:12:23,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:12:23,964 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 469 transitions. [2022-11-16 12:12:23,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-16 12:12:23,965 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:12:23,965 INFO L195 NwaCegarLoop]: 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] [2022-11-16 12:12:23,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-11-16 12:12:23,965 INFO L420 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-16 12:12:23,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:12:23,966 INFO L85 PathProgramCache]: Analyzing trace with hash 1982497248, now seen corresponding path program 1 times [2022-11-16 12:12:23,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:12:23,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703351795] [2022-11-16 12:12:23,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:12:23,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:12:23,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:24,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:12:24,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:12:24,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703351795] [2022-11-16 12:12:24,272 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703351795] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:12:24,272 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:12:24,273 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:12:24,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904723018] [2022-11-16 12:12:24,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:12:24,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:12:24,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:12:24,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:12:24,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:12:24,274 INFO L87 Difference]: Start difference. First operand 341 states and 469 transitions. Second operand has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:12:25,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:12:25,149 INFO L93 Difference]: Finished difference Result 593 states and 842 transitions. [2022-11-16 12:12:25,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:12:25,150 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2022-11-16 12:12:25,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:12:25,150 INFO L225 Difference]: With dead ends: 593 [2022-11-16 12:12:25,151 INFO L226 Difference]: Without dead ends: 343 [2022-11-16 12:12:25,151 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:12:25,151 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 605 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 605 SdHoareTripleChecker+Valid, 552 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:12:25,152 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [605 Valid, 552 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:12:25,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2022-11-16 12:12:25,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 341. [2022-11-16 12:12:25,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 340 states have (on average 1.3735294117647059) internal successors, (467), 340 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:12:25,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 467 transitions. [2022-11-16 12:12:25,787 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 467 transitions. Word has length 114 [2022-11-16 12:12:25,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:12:25,787 INFO L495 AbstractCegarLoop]: Abstraction has 341 states and 467 transitions. [2022-11-16 12:12:25,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:12:25,787 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 467 transitions. [2022-11-16 12:12:25,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-16 12:12:25,788 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:12:25,788 INFO L195 NwaCegarLoop]: 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] [2022-11-16 12:12:25,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-11-16 12:12:25,788 INFO L420 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-16 12:12:25,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:12:25,789 INFO L85 PathProgramCache]: Analyzing trace with hash 1242756927, now seen corresponding path program 1 times [2022-11-16 12:12:25,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:12:25,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930712841] [2022-11-16 12:12:25,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:12:25,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:12:25,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:25,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:12:25,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:12:25,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930712841] [2022-11-16 12:12:25,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930712841] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:12:25,840 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:12:25,840 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:12:25,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882767973] [2022-11-16 12:12:25,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:12:25,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:12:25,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:12:25,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:12:25,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:12:25,842 INFO L87 Difference]: Start difference. First operand 341 states and 467 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:12:27,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:12:27,183 INFO L93 Difference]: Finished difference Result 815 states and 1163 transitions. [2022-11-16 12:12:27,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:12:27,183 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2022-11-16 12:12:27,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:12:27,185 INFO L225 Difference]: With dead ends: 815 [2022-11-16 12:12:27,185 INFO L226 Difference]: Without dead ends: 565 [2022-11-16 12:12:27,185 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:12:27,186 INFO L413 NwaCegarLoop]: 184 mSDtfsCounter, 111 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:12:27,186 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 306 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 12:12:27,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2022-11-16 12:12:28,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 559. [2022-11-16 12:12:28,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 558 states have (on average 1.3942652329749103) internal successors, (778), 558 states have internal predecessors, (778), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:12:28,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 778 transitions. [2022-11-16 12:12:28,429 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 778 transitions. Word has length 114 [2022-11-16 12:12:28,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:12:28,430 INFO L495 AbstractCegarLoop]: Abstraction has 559 states and 778 transitions. [2022-11-16 12:12:28,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:12:28,430 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 778 transitions. [2022-11-16 12:12:28,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-16 12:12:28,431 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:12:28,431 INFO L195 NwaCegarLoop]: 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] [2022-11-16 12:12:28,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-11-16 12:12:28,431 INFO L420 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-16 12:12:28,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:12:28,432 INFO L85 PathProgramCache]: Analyzing trace with hash 335311913, now seen corresponding path program 1 times [2022-11-16 12:12:28,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:12:28,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628014990] [2022-11-16 12:12:28,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:12:28,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:12:28,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:28,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:12:28,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:12:28,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628014990] [2022-11-16 12:12:28,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628014990] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:12:28,565 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:12:28,565 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:12:28,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726089582] [2022-11-16 12:12:28,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:12:28,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:12:28,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:12:28,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:12:28,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:12:28,567 INFO L87 Difference]: Start difference. First operand 559 states and 778 transitions. Second operand has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:12:32,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:12:32,614 INFO L93 Difference]: Finished difference Result 1853 states and 2658 transitions. [2022-11-16 12:12:32,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:12:32,614 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2022-11-16 12:12:32,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:12:32,617 INFO L225 Difference]: With dead ends: 1853 [2022-11-16 12:12:32,617 INFO L226 Difference]: Without dead ends: 1618 [2022-11-16 12:12:32,618 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:12:32,618 INFO L413 NwaCegarLoop]: 279 mSDtfsCounter, 1110 mSDsluCounter, 717 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1110 SdHoareTripleChecker+Valid, 996 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:12:32,618 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1110 Valid, 996 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:12:32,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1618 states. [2022-11-16 12:12:34,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1618 to 909. [2022-11-16 12:12:34,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 909 states, 908 states have (on average 1.4162995594713657) internal successors, (1286), 908 states have internal predecessors, (1286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:12:34,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 909 states to 909 states and 1286 transitions. [2022-11-16 12:12:34,840 INFO L78 Accepts]: Start accepts. Automaton has 909 states and 1286 transitions. Word has length 114 [2022-11-16 12:12:34,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:12:34,841 INFO L495 AbstractCegarLoop]: Abstraction has 909 states and 1286 transitions. [2022-11-16 12:12:34,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:12:34,841 INFO L276 IsEmpty]: Start isEmpty. Operand 909 states and 1286 transitions. [2022-11-16 12:12:34,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-16 12:12:34,842 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:12:34,843 INFO L195 NwaCegarLoop]: 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] [2022-11-16 12:12:34,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-11-16 12:12:34,843 INFO L420 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-16 12:12:34,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:12:34,844 INFO L85 PathProgramCache]: Analyzing trace with hash -784107677, now seen corresponding path program 1 times [2022-11-16 12:12:34,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:12:34,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549898479] [2022-11-16 12:12:34,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:12:34,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:12:34,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:34,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:12:34,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:12:34,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549898479] [2022-11-16 12:12:34,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549898479] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:12:34,987 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:12:34,988 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:12:34,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437093264] [2022-11-16 12:12:34,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:12:34,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:12:34,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:12:34,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:12:34,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:12:34,989 INFO L87 Difference]: Start difference. First operand 909 states and 1286 transitions. Second operand has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:12:40,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:12:40,097 INFO L93 Difference]: Finished difference Result 2086 states and 2997 transitions. [2022-11-16 12:12:40,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:12:40,098 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2022-11-16 12:12:40,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:12:40,101 INFO L225 Difference]: With dead ends: 2086 [2022-11-16 12:12:40,102 INFO L226 Difference]: Without dead ends: 1851 [2022-11-16 12:12:40,103 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:12:40,104 INFO L413 NwaCegarLoop]: 279 mSDtfsCounter, 1003 mSDsluCounter, 803 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1003 SdHoareTripleChecker+Valid, 1082 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:12:40,104 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1003 Valid, 1082 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:12:40,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1851 states. [2022-11-16 12:12:43,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1851 to 1142. [2022-11-16 12:12:43,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1142 states, 1141 states have (on average 1.4241893076248904) internal successors, (1625), 1141 states have internal predecessors, (1625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:12:43,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1142 states to 1142 states and 1625 transitions. [2022-11-16 12:12:43,181 INFO L78 Accepts]: Start accepts. Automaton has 1142 states and 1625 transitions. Word has length 114 [2022-11-16 12:12:43,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:12:43,181 INFO L495 AbstractCegarLoop]: Abstraction has 1142 states and 1625 transitions. [2022-11-16 12:12:43,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:12:43,182 INFO L276 IsEmpty]: Start isEmpty. Operand 1142 states and 1625 transitions. [2022-11-16 12:12:43,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-16 12:12:43,183 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:12:43,183 INFO L195 NwaCegarLoop]: 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] [2022-11-16 12:12:43,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-11-16 12:12:43,184 INFO L420 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-16 12:12:43,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:12:43,184 INFO L85 PathProgramCache]: Analyzing trace with hash -651533795, now seen corresponding path program 1 times [2022-11-16 12:12:43,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:12:43,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184586244] [2022-11-16 12:12:43,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:12:43,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:12:43,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:43,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:12:43,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:12:43,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184586244] [2022-11-16 12:12:43,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184586244] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:12:43,330 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:12:43,330 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:12:43,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948330915] [2022-11-16 12:12:43,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:12:43,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:12:43,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:12:43,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:12:43,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:12:43,332 INFO L87 Difference]: Start difference. First operand 1142 states and 1625 transitions. Second operand has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:12:48,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:12:48,694 INFO L93 Difference]: Finished difference Result 2319 states and 3336 transitions. [2022-11-16 12:12:48,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:12:48,695 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2022-11-16 12:12:48,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:12:48,698 INFO L225 Difference]: With dead ends: 2319 [2022-11-16 12:12:48,698 INFO L226 Difference]: Without dead ends: 2084 [2022-11-16 12:12:48,698 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:12:48,699 INFO L413 NwaCegarLoop]: 274 mSDtfsCounter, 1038 mSDsluCounter, 848 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1038 SdHoareTripleChecker+Valid, 1122 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:12:48,699 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1038 Valid, 1122 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:12:48,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2084 states. [2022-11-16 12:12:52,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2084 to 1375. [2022-11-16 12:12:52,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1375 states, 1374 states have (on average 1.4294032023289664) internal successors, (1964), 1374 states have internal predecessors, (1964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:12:52,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1375 states to 1375 states and 1964 transitions. [2022-11-16 12:12:52,005 INFO L78 Accepts]: Start accepts. Automaton has 1375 states and 1964 transitions. Word has length 114 [2022-11-16 12:12:52,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:12:52,006 INFO L495 AbstractCegarLoop]: Abstraction has 1375 states and 1964 transitions. [2022-11-16 12:12:52,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:12:52,006 INFO L276 IsEmpty]: Start isEmpty. Operand 1375 states and 1964 transitions. [2022-11-16 12:12:52,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-11-16 12:12:52,007 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:12:52,008 INFO L195 NwaCegarLoop]: 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] [2022-11-16 12:12:52,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-11-16 12:12:52,008 INFO L420 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-16 12:12:52,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:12:52,009 INFO L85 PathProgramCache]: Analyzing trace with hash 1268705059, now seen corresponding path program 1 times [2022-11-16 12:12:52,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:12:52,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607728515] [2022-11-16 12:12:52,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:12:52,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:12:52,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:52,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:12:52,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:12:52,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607728515] [2022-11-16 12:12:52,145 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607728515] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:12:52,145 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:12:52,145 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:12:52,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724942136] [2022-11-16 12:12:52,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:12:52,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:12:52,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:12:52,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:12:52,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:12:52,152 INFO L87 Difference]: Start difference. First operand 1375 states and 1964 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:12:58,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:12:58,586 INFO L93 Difference]: Finished difference Result 3855 states and 5544 transitions. [2022-11-16 12:12:58,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:12:58,587 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2022-11-16 12:12:58,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:12:58,592 INFO L225 Difference]: With dead ends: 3855 [2022-11-16 12:12:58,592 INFO L226 Difference]: Without dead ends: 2571 [2022-11-16 12:12:58,594 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:12:58,595 INFO L413 NwaCegarLoop]: 254 mSDtfsCounter, 89 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:12:58,595 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 407 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 12:12:58,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2571 states. [2022-11-16 12:13:04,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2571 to 2481. [2022-11-16 12:13:04,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2481 states, 2480 states have (on average 1.429032258064516) internal successors, (3544), 2480 states have internal predecessors, (3544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:13:04,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2481 states to 2481 states and 3544 transitions. [2022-11-16 12:13:04,606 INFO L78 Accepts]: Start accepts. Automaton has 2481 states and 3544 transitions. Word has length 115 [2022-11-16 12:13:04,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:13:04,607 INFO L495 AbstractCegarLoop]: Abstraction has 2481 states and 3544 transitions. [2022-11-16 12:13:04,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:13:04,607 INFO L276 IsEmpty]: Start isEmpty. Operand 2481 states and 3544 transitions. [2022-11-16 12:13:04,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-11-16 12:13:04,608 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:13:04,609 INFO L195 NwaCegarLoop]: 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] [2022-11-16 12:13:04,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-11-16 12:13:04,609 INFO L420 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-16 12:13:04,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:13:04,610 INFO L85 PathProgramCache]: Analyzing trace with hash -1444283991, now seen corresponding path program 1 times [2022-11-16 12:13:04,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:13:04,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640873034] [2022-11-16 12:13:04,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:13:04,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:13:04,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:04,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:13:04,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:13:04,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640873034] [2022-11-16 12:13:04,745 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640873034] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:13:04,745 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:13:04,745 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:13:04,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305848028] [2022-11-16 12:13:04,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:13:04,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:13:04,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:13:04,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:13:04,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:13:04,747 INFO L87 Difference]: Start difference. First operand 2481 states and 3544 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:13:17,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:13:17,465 INFO L93 Difference]: Finished difference Result 7085 states and 10130 transitions. [2022-11-16 12:13:17,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:13:17,466 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 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 116 [2022-11-16 12:13:17,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:13:17,476 INFO L225 Difference]: With dead ends: 7085 [2022-11-16 12:13:17,476 INFO L226 Difference]: Without dead ends: 4695 [2022-11-16 12:13:17,480 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:13:17,481 INFO L413 NwaCegarLoop]: 247 mSDtfsCounter, 82 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:13:17,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 407 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 12:13:17,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4695 states. [2022-11-16 12:13:30,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4695 to 4517. [2022-11-16 12:13:30,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4517 states, 4516 states have (on average 1.421169176262179) internal successors, (6418), 4516 states have internal predecessors, (6418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:13:30,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4517 states to 4517 states and 6418 transitions. [2022-11-16 12:13:30,909 INFO L78 Accepts]: Start accepts. Automaton has 4517 states and 6418 transitions. Word has length 116 [2022-11-16 12:13:30,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:13:30,910 INFO L495 AbstractCegarLoop]: Abstraction has 4517 states and 6418 transitions. [2022-11-16 12:13:30,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:13:30,910 INFO L276 IsEmpty]: Start isEmpty. Operand 4517 states and 6418 transitions. [2022-11-16 12:13:30,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-11-16 12:13:30,911 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:13:30,911 INFO L195 NwaCegarLoop]: 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] [2022-11-16 12:13:30,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-11-16 12:13:30,911 INFO L420 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-16 12:13:30,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:13:30,912 INFO L85 PathProgramCache]: Analyzing trace with hash -1913447474, now seen corresponding path program 1 times [2022-11-16 12:13:30,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:13:30,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455842332] [2022-11-16 12:13:30,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:13:30,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:13:30,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:31,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:13:31,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:13:31,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455842332] [2022-11-16 12:13:31,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455842332] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:13:31,032 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:13:31,032 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:13:31,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409576525] [2022-11-16 12:13:31,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:13:31,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:13:31,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:13:31,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:13:31,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:13:31,033 INFO L87 Difference]: Start difference. First operand 4517 states and 6418 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:13:55,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:13:55,425 INFO L93 Difference]: Finished difference Result 13017 states and 18444 transitions. [2022-11-16 12:13:55,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:13:55,426 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 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 117 [2022-11-16 12:13:55,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:13:55,439 INFO L225 Difference]: With dead ends: 13017 [2022-11-16 12:13:55,439 INFO L226 Difference]: Without dead ends: 8591 [2022-11-16 12:13:55,446 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:13:55,447 INFO L413 NwaCegarLoop]: 240 mSDtfsCounter, 75 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:13:55,449 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 407 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 12:13:55,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8591 states. [2022-11-16 12:14:19,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8591 to 8237. [2022-11-16 12:14:19,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8237 states, 8236 states have (on average 1.407722195240408) internal successors, (11594), 8236 states have internal predecessors, (11594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:14:19,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8237 states to 8237 states and 11594 transitions. [2022-11-16 12:14:19,748 INFO L78 Accepts]: Start accepts. Automaton has 8237 states and 11594 transitions. Word has length 117 [2022-11-16 12:14:19,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:14:19,748 INFO L495 AbstractCegarLoop]: Abstraction has 8237 states and 11594 transitions. [2022-11-16 12:14:19,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:14:19,749 INFO L276 IsEmpty]: Start isEmpty. Operand 8237 states and 11594 transitions. [2022-11-16 12:14:19,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-11-16 12:14:19,750 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:14:19,750 INFO L195 NwaCegarLoop]: 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] [2022-11-16 12:14:19,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-11-16 12:14:19,751 INFO L420 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-16 12:14:19,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:14:19,751 INFO L85 PathProgramCache]: Analyzing trace with hash -1786344024, now seen corresponding path program 1 times [2022-11-16 12:14:19,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:14:19,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656104570] [2022-11-16 12:14:19,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:14:19,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:14:19,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:19,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:14:19,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:14:19,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656104570] [2022-11-16 12:14:19,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656104570] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:14:19,859 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:14:19,859 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:14:19,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2836687] [2022-11-16 12:14:19,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:14:19,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:14:19,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:14:19,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:14:19,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:14:19,861 INFO L87 Difference]: Start difference. First operand 8237 states and 11594 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:15:03,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:15:03,518 INFO L93 Difference]: Finished difference Result 23825 states and 33356 transitions. [2022-11-16 12:15:03,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:15:03,518 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 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 118 [2022-11-16 12:15:03,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:15:03,540 INFO L225 Difference]: With dead ends: 23825 [2022-11-16 12:15:03,540 INFO L226 Difference]: Without dead ends: 15679 [2022-11-16 12:15:03,547 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:15:03,548 INFO L413 NwaCegarLoop]: 233 mSDtfsCounter, 65 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:15:03,548 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 407 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 12:15:03,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15679 states. [2022-11-16 12:15:46,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15679 to 14973. [2022-11-16 12:15:46,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14973 states, 14972 states have (on average 1.389393534597916) internal successors, (20802), 14972 states have internal predecessors, (20802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:15:46,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14973 states to 14973 states and 20802 transitions. [2022-11-16 12:15:46,677 INFO L78 Accepts]: Start accepts. Automaton has 14973 states and 20802 transitions. Word has length 118 [2022-11-16 12:15:46,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:15:46,678 INFO L495 AbstractCegarLoop]: Abstraction has 14973 states and 20802 transitions. [2022-11-16 12:15:46,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:15:46,678 INFO L276 IsEmpty]: Start isEmpty. Operand 14973 states and 20802 transitions. [2022-11-16 12:15:46,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-11-16 12:15:46,678 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:15:46,679 INFO L195 NwaCegarLoop]: 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] [2022-11-16 12:15:46,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-11-16 12:15:46,679 INFO L420 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-16 12:15:46,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:15:46,679 INFO L85 PathProgramCache]: Analyzing trace with hash 880608737, now seen corresponding path program 1 times [2022-11-16 12:15:46,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:15:46,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7719776] [2022-11-16 12:15:46,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:15:46,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:15:46,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:46,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:15:46,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:15:46,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7719776] [2022-11-16 12:15:46,880 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7719776] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:15:46,880 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:15:46,880 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 12:15:46,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194635955] [2022-11-16 12:15:46,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:15:46,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:15:46,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:15:46,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:15:46,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:15:46,882 INFO L87 Difference]: Start difference. First operand 14973 states and 20802 transitions. Second operand has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:17:03,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:17:03,910 INFO L93 Difference]: Finished difference Result 26383 states and 36427 transitions. [2022-11-16 12:17:03,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 12:17:03,910 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 states have internal predecessors, (119), 0 states have call successors, (0), 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 119 [2022-11-16 12:17:03,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:17:03,948 INFO L225 Difference]: With dead ends: 26383 [2022-11-16 12:17:03,948 INFO L226 Difference]: Without dead ends: 26381 [2022-11-16 12:17:03,953 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:17:03,954 INFO L413 NwaCegarLoop]: 248 mSDtfsCounter, 310 mSDsluCounter, 764 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 1012 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:17:03,954 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [310 Valid, 1012 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 12:17:03,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26381 states. [2022-11-16 12:17:43,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26381 to 15453. [2022-11-16 12:17:43,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15453 states, 15452 states have (on average 1.3710846492363449) internal successors, (21186), 15452 states have internal predecessors, (21186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:17:43,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15453 states to 15453 states and 21186 transitions. [2022-11-16 12:17:43,715 INFO L78 Accepts]: Start accepts. Automaton has 15453 states and 21186 transitions. Word has length 119 [2022-11-16 12:17:43,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:17:43,716 INFO L495 AbstractCegarLoop]: Abstraction has 15453 states and 21186 transitions. [2022-11-16 12:17:43,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:17:43,716 INFO L276 IsEmpty]: Start isEmpty. Operand 15453 states and 21186 transitions. [2022-11-16 12:17:43,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-11-16 12:17:43,716 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:17:43,717 INFO L195 NwaCegarLoop]: 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] [2022-11-16 12:17:43,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-11-16 12:17:43,717 INFO L420 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-16 12:17:43,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:17:43,718 INFO L85 PathProgramCache]: Analyzing trace with hash 1221320670, now seen corresponding path program 1 times [2022-11-16 12:17:43,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:17:43,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958591412] [2022-11-16 12:17:43,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:17:43,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:17:43,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:17:43,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:17:43,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:17:43,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958591412] [2022-11-16 12:17:43,878 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958591412] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:17:43,878 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:17:43,878 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:17:43,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721014149] [2022-11-16 12:17:43,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:17:43,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:17:43,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:17:43,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:17:43,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:17:43,879 INFO L87 Difference]: Start difference. First operand 15453 states and 21186 transitions. Second operand has 7 states, 7 states have (on average 17.0) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:18:54,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:18:54,865 INFO L93 Difference]: Finished difference Result 29465 states and 40552 transitions. [2022-11-16 12:18:54,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:18:54,865 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.0) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 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 119 [2022-11-16 12:18:54,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:18:54,904 INFO L225 Difference]: With dead ends: 29465 [2022-11-16 12:18:54,904 INFO L226 Difference]: Without dead ends: 26663 [2022-11-16 12:18:54,911 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:18:54,911 INFO L413 NwaCegarLoop]: 272 mSDtfsCounter, 1180 mSDsluCounter, 826 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1180 SdHoareTripleChecker+Valid, 1098 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:18:54,912 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1180 Valid, 1098 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:18:54,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26663 states. [2022-11-16 12:19:44,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26663 to 18253. [2022-11-16 12:19:44,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18253 states, 18252 states have (on average 1.3711374095989481) internal successors, (25026), 18252 states have internal predecessors, (25026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:44,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18253 states to 18253 states and 25026 transitions. [2022-11-16 12:19:44,254 INFO L78 Accepts]: Start accepts. Automaton has 18253 states and 25026 transitions. Word has length 119 [2022-11-16 12:19:44,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:19:44,255 INFO L495 AbstractCegarLoop]: Abstraction has 18253 states and 25026 transitions. [2022-11-16 12:19:44,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.0) internal successors, (119), 7 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:44,255 INFO L276 IsEmpty]: Start isEmpty. Operand 18253 states and 25026 transitions. [2022-11-16 12:19:44,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-11-16 12:19:44,256 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:19:44,256 INFO L195 NwaCegarLoop]: 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] [2022-11-16 12:19:44,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-11-16 12:19:44,256 INFO L420 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-16 12:19:44,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:19:44,257 INFO L85 PathProgramCache]: Analyzing trace with hash -1777695494, now seen corresponding path program 1 times [2022-11-16 12:19:44,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:19:44,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982183839] [2022-11-16 12:19:44,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:19:44,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:19:44,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:44,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:19:44,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:19:44,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982183839] [2022-11-16 12:19:44,375 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982183839] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:19:44,375 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:19:44,376 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:19:44,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594627867] [2022-11-16 12:19:44,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:19:44,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:19:44,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:19:44,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:19:44,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:19:44,377 INFO L87 Difference]: Start difference. First operand 18253 states and 25026 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:21:08,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:21:08,640 INFO L93 Difference]: Finished difference Result 47297 states and 64676 transitions. [2022-11-16 12:21:08,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:21:08,640 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 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 120 [2022-11-16 12:21:08,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:21:08,684 INFO L225 Difference]: With dead ends: 47297 [2022-11-16 12:21:08,684 INFO L226 Difference]: Without dead ends: 29135 [2022-11-16 12:21:08,699 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:21:08,699 INFO L413 NwaCegarLoop]: 264 mSDtfsCounter, 93 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:21:08,700 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 410 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 12:21:08,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29135 states. [2022-11-16 12:22:27,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29135 to 27469. [2022-11-16 12:22:27,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27469 states, 27468 states have (on average 1.356123489151012) internal successors, (37250), 27468 states have internal predecessors, (37250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:27,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27469 states to 27469 states and 37250 transitions. [2022-11-16 12:22:27,727 INFO L78 Accepts]: Start accepts. Automaton has 27469 states and 37250 transitions. Word has length 120 [2022-11-16 12:22:27,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:22:27,727 INFO L495 AbstractCegarLoop]: Abstraction has 27469 states and 37250 transitions. [2022-11-16 12:22:27,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:22:27,727 INFO L276 IsEmpty]: Start isEmpty. Operand 27469 states and 37250 transitions. [2022-11-16 12:22:27,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-11-16 12:22:27,731 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:22:27,732 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:22:27,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-11-16 12:22:27,732 INFO L420 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2022-11-16 12:22:27,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:22:27,733 INFO L85 PathProgramCache]: Analyzing trace with hash -1132154545, now seen corresponding path program 1 times [2022-11-16 12:22:27,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:22:27,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027529232] [2022-11-16 12:22:27,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:22:27,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:22:27,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:22:27,875 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:22:27,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:22:27,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027529232] [2022-11-16 12:22:27,876 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027529232] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:22:27,876 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:22:27,877 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:22:27,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24846091] [2022-11-16 12:22:27,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:22:27,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:22:27,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:22:27,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:22:27,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:22:27,878 INFO L87 Difference]: Start difference. First operand 27469 states and 37250 transitions. Second operand has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)