./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a 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_d73bdab0-b5d8-459d-b9e7-b31c32ca8454/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d73bdab0-b5d8-459d-b9e7-b31c32ca8454/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d73bdab0-b5d8-459d-b9e7-b31c32ca8454/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d73bdab0-b5d8-459d-b9e7-b31c32ca8454/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d73bdab0-b5d8-459d-b9e7-b31c32ca8454/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d73bdab0-b5d8-459d-b9e7-b31c32ca8454/bin/uautomizer-ZsLfNo2U6R --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 dad2aa6a134d55c6f9e0680e747fcd11c50dca1f4f191403c757088bda5dc252 --- 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-38b53e6 [2022-11-25 16:46:29,197 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 16:46:29,199 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 16:46:29,223 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 16:46:29,226 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 16:46:29,230 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 16:46:29,233 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 16:46:29,236 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 16:46:29,238 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 16:46:29,244 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 16:46:29,246 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 16:46:29,248 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 16:46:29,249 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 16:46:29,254 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 16:46:29,255 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 16:46:29,258 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 16:46:29,260 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 16:46:29,261 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 16:46:29,262 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 16:46:29,269 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 16:46:29,271 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 16:46:29,273 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 16:46:29,274 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 16:46:29,275 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 16:46:29,285 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 16:46:29,286 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 16:46:29,286 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 16:46:29,288 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 16:46:29,289 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 16:46:29,291 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 16:46:29,292 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 16:46:29,293 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 16:46:29,295 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 16:46:29,296 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 16:46:29,297 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 16:46:29,297 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 16:46:29,298 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 16:46:29,298 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 16:46:29,298 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 16:46:29,300 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 16:46:29,301 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 16:46:29,302 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d73bdab0-b5d8-459d-b9e7-b31c32ca8454/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-25 16:46:29,339 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 16:46:29,343 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 16:46:29,344 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 16:46:29,344 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 16:46:29,345 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 16:46:29,346 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 16:46:29,347 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 16:46:29,347 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 16:46:29,347 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 16:46:29,347 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 16:46:29,349 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 16:46:29,349 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 16:46:29,349 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 16:46:29,349 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 16:46:29,350 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 16:46:29,350 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 16:46:29,350 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 16:46:29,351 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 16:46:29,351 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 16:46:29,351 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 16:46:29,351 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 16:46:29,352 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 16:46:29,352 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 16:46:29,352 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 16:46:29,352 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 16:46:29,353 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 16:46:29,353 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 16:46:29,353 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 16:46:29,354 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 16:46:29,354 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 16:46:29,355 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 16:46:29,355 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 16:46:29,355 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 16:46:29,356 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 16:46:29,356 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_d73bdab0-b5d8-459d-b9e7-b31c32ca8454/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d73bdab0-b5d8-459d-b9e7-b31c32ca8454/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dad2aa6a134d55c6f9e0680e747fcd11c50dca1f4f191403c757088bda5dc252 [2022-11-25 16:46:29,673 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 16:46:29,709 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 16:46:29,712 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 16:46:29,713 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 16:46:29,713 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 16:46:29,715 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d73bdab0-b5d8-459d-b9e7-b31c32ca8454/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c [2022-11-25 16:46:32,741 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 16:46:33,334 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 16:46:33,335 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d73bdab0-b5d8-459d-b9e7-b31c32ca8454/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c [2022-11-25 16:46:33,386 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d73bdab0-b5d8-459d-b9e7-b31c32ca8454/bin/uautomizer-ZsLfNo2U6R/data/f63f1141c/61708e6e841144669cbbb241315a58bd/FLAG6cf353161 [2022-11-25 16:46:33,406 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d73bdab0-b5d8-459d-b9e7-b31c32ca8454/bin/uautomizer-ZsLfNo2U6R/data/f63f1141c/61708e6e841144669cbbb241315a58bd [2022-11-25 16:46:33,408 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 16:46:33,410 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 16:46:33,411 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 16:46:33,411 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 16:46:33,417 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 16:46:33,418 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:46:33" (1/1) ... [2022-11-25 16:46:33,419 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e57f330 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:46:33, skipping insertion in model container [2022-11-25 16:46:33,419 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:46:33" (1/1) ... [2022-11-25 16:46:33,427 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 16:46:33,774 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 16:46:34,381 WARN L237 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_d73bdab0-b5d8-459d-b9e7-b31c32ca8454/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[32670,32683] [2022-11-25 16:46:34,418 WARN L237 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_d73bdab0-b5d8-459d-b9e7-b31c32ca8454/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[39748,39761] [2022-11-25 16:46:34,544 WARN L237 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_d73bdab0-b5d8-459d-b9e7-b31c32ca8454/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[66949,66962] [2022-11-25 16:46:34,578 WARN L237 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_d73bdab0-b5d8-459d-b9e7-b31c32ca8454/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[76032,76045] [2022-11-25 16:46:34,603 WARN L237 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_d73bdab0-b5d8-459d-b9e7-b31c32ca8454/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[82743,82756] [2022-11-25 16:46:34,676 WARN L237 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_d73bdab0-b5d8-459d-b9e7-b31c32ca8454/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[94707,94720] [2022-11-25 16:46:34,717 WARN L237 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_d73bdab0-b5d8-459d-b9e7-b31c32ca8454/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[103680,103693] [2022-11-25 16:46:34,755 WARN L237 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_d73bdab0-b5d8-459d-b9e7-b31c32ca8454/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[111745,111758] [2022-11-25 16:46:34,895 WARN L237 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_d73bdab0-b5d8-459d-b9e7-b31c32ca8454/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[150437,150450] [2022-11-25 16:46:34,905 WARN L237 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_d73bdab0-b5d8-459d-b9e7-b31c32ca8454/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[153987,154000] [2022-11-25 16:46:34,941 WARN L237 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_d73bdab0-b5d8-459d-b9e7-b31c32ca8454/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[163014,163027] [2022-11-25 16:46:34,963 WARN L237 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_d73bdab0-b5d8-459d-b9e7-b31c32ca8454/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[169687,169700] [2022-11-25 16:46:35,049 WARN L237 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_d73bdab0-b5d8-459d-b9e7-b31c32ca8454/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[195501,195514] [2022-11-25 16:46:35,135 WARN L237 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_d73bdab0-b5d8-459d-b9e7-b31c32ca8454/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[227497,227510] [2022-11-25 16:46:35,226 WARN L237 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_d73bdab0-b5d8-459d-b9e7-b31c32ca8454/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[257825,257838] [2022-11-25 16:46:35,295 WARN L237 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_d73bdab0-b5d8-459d-b9e7-b31c32ca8454/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[288277,288290] [2022-11-25 16:46:35,370 WARN L237 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_d73bdab0-b5d8-459d-b9e7-b31c32ca8454/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[321714,321727] [2022-11-25 16:46:35,648 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 16:46:35,681 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 16:46:35,834 WARN L237 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_d73bdab0-b5d8-459d-b9e7-b31c32ca8454/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[32670,32683] [2022-11-25 16:46:35,862 WARN L237 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_d73bdab0-b5d8-459d-b9e7-b31c32ca8454/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[39748,39761] [2022-11-25 16:46:35,933 WARN L237 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_d73bdab0-b5d8-459d-b9e7-b31c32ca8454/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[66949,66962] [2022-11-25 16:46:35,953 WARN L237 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_d73bdab0-b5d8-459d-b9e7-b31c32ca8454/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[76032,76045] [2022-11-25 16:46:35,969 WARN L237 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_d73bdab0-b5d8-459d-b9e7-b31c32ca8454/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[82743,82756] [2022-11-25 16:46:35,998 WARN L237 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_d73bdab0-b5d8-459d-b9e7-b31c32ca8454/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[94707,94720] [2022-11-25 16:46:36,021 WARN L237 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_d73bdab0-b5d8-459d-b9e7-b31c32ca8454/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[103680,103693] [2022-11-25 16:46:36,039 WARN L237 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_d73bdab0-b5d8-459d-b9e7-b31c32ca8454/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[111745,111758] [2022-11-25 16:46:36,164 WARN L237 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_d73bdab0-b5d8-459d-b9e7-b31c32ca8454/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[150437,150450] [2022-11-25 16:46:36,173 WARN L237 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_d73bdab0-b5d8-459d-b9e7-b31c32ca8454/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[153987,154000] [2022-11-25 16:46:36,194 WARN L237 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_d73bdab0-b5d8-459d-b9e7-b31c32ca8454/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[163014,163027] [2022-11-25 16:46:36,210 WARN L237 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_d73bdab0-b5d8-459d-b9e7-b31c32ca8454/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[169687,169700] [2022-11-25 16:46:36,265 WARN L237 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_d73bdab0-b5d8-459d-b9e7-b31c32ca8454/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[195501,195514] [2022-11-25 16:46:36,329 WARN L237 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_d73bdab0-b5d8-459d-b9e7-b31c32ca8454/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[227497,227510] [2022-11-25 16:46:36,389 WARN L237 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_d73bdab0-b5d8-459d-b9e7-b31c32ca8454/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[257825,257838] [2022-11-25 16:46:36,452 WARN L237 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_d73bdab0-b5d8-459d-b9e7-b31c32ca8454/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[288277,288290] [2022-11-25 16:46:36,523 WARN L237 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_d73bdab0-b5d8-459d-b9e7-b31c32ca8454/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[321714,321727] [2022-11-25 16:46:36,758 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 16:46:36,788 INFO L208 MainTranslator]: Completed translation [2022-11-25 16:46:36,788 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:46:36 WrapperNode [2022-11-25 16:46:36,788 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 16:46:36,790 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 16:46:36,790 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 16:46:36,790 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 16:46:36,798 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:46:36" (1/1) ... [2022-11-25 16:46:36,920 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:46:36" (1/1) ... [2022-11-25 16:46:37,152 INFO L138 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 18051 [2022-11-25 16:46:37,152 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 16:46:37,153 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 16:46:37,153 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 16:46:37,153 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 16:46:37,163 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:46:36" (1/1) ... [2022-11-25 16:46:37,163 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:46:36" (1/1) ... [2022-11-25 16:46:37,202 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:46:36" (1/1) ... [2022-11-25 16:46:37,203 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:46:36" (1/1) ... [2022-11-25 16:46:37,304 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:46:36" (1/1) ... [2022-11-25 16:46:37,467 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:46:36" (1/1) ... [2022-11-25 16:46:37,501 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:46:36" (1/1) ... [2022-11-25 16:46:37,536 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:46:36" (1/1) ... [2022-11-25 16:46:37,584 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 16:46:37,585 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 16:46:37,586 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 16:46:37,586 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 16:46:37,587 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:46:36" (1/1) ... [2022-11-25 16:46:37,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 16:46:37,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d73bdab0-b5d8-459d-b9e7-b31c32ca8454/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:46:37,624 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d73bdab0-b5d8-459d-b9e7-b31c32ca8454/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 16:46:37,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d73bdab0-b5d8-459d-b9e7-b31c32ca8454/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 16:46:37,675 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 16:46:37,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 16:46:37,676 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 16:46:37,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 16:46:38,388 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 16:46:38,390 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 16:46:46,815 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 16:46:46,851 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 16:46:46,851 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 16:46:46,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:46:46 BoogieIcfgContainer [2022-11-25 16:46:46,859 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 16:46:46,862 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 16:46:46,862 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 16:46:46,866 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 16:46:46,866 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 04:46:33" (1/3) ... [2022-11-25 16:46:46,867 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30ef5829 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 04:46:46, skipping insertion in model container [2022-11-25 16:46:46,867 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:46:36" (2/3) ... [2022-11-25 16:46:46,868 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30ef5829 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 04:46:46, skipping insertion in model container [2022-11-25 16:46:46,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:46:46" (3/3) ... [2022-11-25 16:46:46,870 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c [2022-11-25 16:46:46,891 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 16:46:46,892 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 17 error locations. [2022-11-25 16:46:47,037 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 16:46:47,048 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;@730e57c1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 16:46:47,050 INFO L358 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2022-11-25 16:46:47,069 INFO L276 IsEmpty]: Start isEmpty. Operand has 3732 states, 3714 states have (on average 1.7808292945611202) internal successors, (6614), 3731 states have internal predecessors, (6614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:46:47,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-11-25 16:46:47,113 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:46:47,114 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] [2022-11-25 16:46:47,115 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-11-25 16:46:47,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:46:47,124 INFO L85 PathProgramCache]: Analyzing trace with hash -100733711, now seen corresponding path program 1 times [2022-11-25 16:46:47,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:46:47,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309551964] [2022-11-25 16:46:47,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:46:47,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:46:47,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:46:47,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:46:47,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:46:47,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309551964] [2022-11-25 16:46:47,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309551964] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:46:47,982 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:46:47,982 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 16:46:47,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350109225] [2022-11-25 16:46:47,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:46:47,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 16:46:47,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:46:48,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 16:46:48,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 16:46:48,046 INFO L87 Difference]: Start difference. First operand has 3732 states, 3714 states have (on average 1.7808292945611202) internal successors, (6614), 3731 states have internal predecessors, (6614), 0 states have call successors, (0), 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 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:46:53,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:46:53,249 INFO L93 Difference]: Finished difference Result 7047 states and 12225 transitions. [2022-11-25 16:46:53,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 16:46:53,251 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2022-11-25 16:46:53,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:46:53,354 INFO L225 Difference]: With dead ends: 7047 [2022-11-25 16:46:53,357 INFO L226 Difference]: Without dead ends: 4526 [2022-11-25 16:46:53,369 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 [2022-11-25 16:46:53,374 INFO L413 NwaCegarLoop]: 2976 mSDtfsCounter, 20495 mSDsluCounter, 1316 mSDsCounter, 0 mSdLazyCounter, 3550 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20495 SdHoareTripleChecker+Valid, 4292 SdHoareTripleChecker+Invalid, 3687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 3550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-11-25 16:46:53,380 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20495 Valid, 4292 Invalid, 3687 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [137 Valid, 3550 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-11-25 16:46:53,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4526 states. [2022-11-25 16:46:53,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4526 to 4501. [2022-11-25 16:46:53,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4501 states, 4484 states have (on average 1.300178412132025) internal successors, (5830), 4500 states have internal predecessors, (5830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:46:53,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4501 states to 4501 states and 5830 transitions. [2022-11-25 16:46:53,668 INFO L78 Accepts]: Start accepts. Automaton has 4501 states and 5830 transitions. Word has length 65 [2022-11-25 16:46:53,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:46:53,669 INFO L495 AbstractCegarLoop]: Abstraction has 4501 states and 5830 transitions. [2022-11-25 16:46:53,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:46:53,670 INFO L276 IsEmpty]: Start isEmpty. Operand 4501 states and 5830 transitions. [2022-11-25 16:46:53,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-25 16:46:53,681 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:46:53,682 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] [2022-11-25 16:46:53,682 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 16:46:53,682 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-11-25 16:46:53,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:46:53,683 INFO L85 PathProgramCache]: Analyzing trace with hash 100373679, now seen corresponding path program 1 times [2022-11-25 16:46:53,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:46:53,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198522497] [2022-11-25 16:46:53,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:46:53,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:46:53,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:46:53,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:46:53,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:46:53,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198522497] [2022-11-25 16:46:53,955 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198522497] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:46:53,955 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:46:53,955 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 16:46:53,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41226352] [2022-11-25 16:46:53,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:46:53,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 16:46:53,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:46:53,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 16:46:53,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 16:46:53,958 INFO L87 Difference]: Start difference. First operand 4501 states and 5830 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:46:57,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:46:57,323 INFO L93 Difference]: Finished difference Result 8465 states and 10989 transitions. [2022-11-25 16:46:57,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 16:46:57,323 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2022-11-25 16:46:57,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:46:57,346 INFO L225 Difference]: With dead ends: 8465 [2022-11-25 16:46:57,346 INFO L226 Difference]: Without dead ends: 5686 [2022-11-25 16:46:57,353 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 [2022-11-25 16:46:57,354 INFO L413 NwaCegarLoop]: 1914 mSDtfsCounter, 13269 mSDsluCounter, 669 mSDsCounter, 0 mSdLazyCounter, 2316 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13269 SdHoareTripleChecker+Valid, 2583 SdHoareTripleChecker+Invalid, 2391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 2316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-11-25 16:46:57,360 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13269 Valid, 2583 Invalid, 2391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 2316 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-11-25 16:46:57,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5686 states. [2022-11-25 16:46:57,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5686 to 5656. [2022-11-25 16:46:57,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5656 states, 5639 states have (on average 1.3060826387657387) internal successors, (7365), 5655 states have internal predecessors, (7365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:46:57,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5656 states to 5656 states and 7365 transitions. [2022-11-25 16:46:57,629 INFO L78 Accepts]: Start accepts. Automaton has 5656 states and 7365 transitions. Word has length 66 [2022-11-25 16:46:57,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:46:57,629 INFO L495 AbstractCegarLoop]: Abstraction has 5656 states and 7365 transitions. [2022-11-25 16:46:57,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:46:57,630 INFO L276 IsEmpty]: Start isEmpty. Operand 5656 states and 7365 transitions. [2022-11-25 16:46:57,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-25 16:46:57,638 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:46:57,638 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] [2022-11-25 16:46:57,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 16:46:57,639 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-11-25 16:46:57,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:46:57,649 INFO L85 PathProgramCache]: Analyzing trace with hash 2043501231, now seen corresponding path program 1 times [2022-11-25 16:46:57,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:46:57,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084040341] [2022-11-25 16:46:57,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:46:57,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:46:57,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:46:57,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:46:57,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:46:57,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084040341] [2022-11-25 16:46:57,956 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084040341] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:46:57,956 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:46:57,956 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 16:46:57,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741159149] [2022-11-25 16:46:57,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:46:57,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 16:46:57,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:46:57,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 16:46:57,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 16:46:57,959 INFO L87 Difference]: Start difference. First operand 5656 states and 7365 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:47:01,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:47:01,168 INFO L93 Difference]: Finished difference Result 11341 states and 14793 transitions. [2022-11-25 16:47:01,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 16:47:01,169 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2022-11-25 16:47:01,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:47:01,198 INFO L225 Difference]: With dead ends: 11341 [2022-11-25 16:47:01,199 INFO L226 Difference]: Without dead ends: 7095 [2022-11-25 16:47:01,207 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 [2022-11-25 16:47:01,208 INFO L413 NwaCegarLoop]: 1612 mSDtfsCounter, 11557 mSDsluCounter, 634 mSDsCounter, 0 mSdLazyCounter, 2075 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11557 SdHoareTripleChecker+Valid, 2246 SdHoareTripleChecker+Invalid, 2126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 2075 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-11-25 16:47:01,208 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11557 Valid, 2246 Invalid, 2126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 2075 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-11-25 16:47:01,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7095 states. [2022-11-25 16:47:01,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7095 to 7075. [2022-11-25 16:47:01,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7075 states, 7058 states have (on average 1.3085860017001985) internal successors, (9236), 7074 states have internal predecessors, (9236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:47:01,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7075 states to 7075 states and 9236 transitions. [2022-11-25 16:47:01,646 INFO L78 Accepts]: Start accepts. Automaton has 7075 states and 9236 transitions. Word has length 66 [2022-11-25 16:47:01,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:47:01,646 INFO L495 AbstractCegarLoop]: Abstraction has 7075 states and 9236 transitions. [2022-11-25 16:47:01,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:47:01,647 INFO L276 IsEmpty]: Start isEmpty. Operand 7075 states and 9236 transitions. [2022-11-25 16:47:01,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-25 16:47:01,654 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:47:01,654 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] [2022-11-25 16:47:01,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 16:47:01,654 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-11-25 16:47:01,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:47:01,655 INFO L85 PathProgramCache]: Analyzing trace with hash 280890183, now seen corresponding path program 1 times [2022-11-25 16:47:01,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:47:01,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766218507] [2022-11-25 16:47:01,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:47:01,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:47:01,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:47:01,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:47:01,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:47:01,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766218507] [2022-11-25 16:47:01,919 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766218507] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:47:01,920 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:47:01,920 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 16:47:01,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396881326] [2022-11-25 16:47:01,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:47:01,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 16:47:01,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:47:01,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 16:47:01,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 16:47:01,923 INFO L87 Difference]: Start difference. First operand 7075 states and 9236 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:47:04,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:47:04,330 INFO L93 Difference]: Finished difference Result 13797 states and 18189 transitions. [2022-11-25 16:47:04,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 16:47:04,331 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 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 67 [2022-11-25 16:47:04,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:47:04,385 INFO L225 Difference]: With dead ends: 13797 [2022-11-25 16:47:04,385 INFO L226 Difference]: Without dead ends: 9215 [2022-11-25 16:47:04,394 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 [2022-11-25 16:47:04,398 INFO L413 NwaCegarLoop]: 1470 mSDtfsCounter, 9715 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 1607 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9715 SdHoareTripleChecker+Valid, 2010 SdHoareTripleChecker+Invalid, 1631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1607 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-25 16:47:04,399 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9715 Valid, 2010 Invalid, 1631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1607 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-25 16:47:04,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9215 states. [2022-11-25 16:47:04,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9215 to 9175. [2022-11-25 16:47:05,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9175 states, 9158 states have (on average 1.3226687049574142) internal successors, (12113), 9174 states have internal predecessors, (12113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:47:05,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9175 states to 9175 states and 12113 transitions. [2022-11-25 16:47:05,047 INFO L78 Accepts]: Start accepts. Automaton has 9175 states and 12113 transitions. Word has length 67 [2022-11-25 16:47:05,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:47:05,047 INFO L495 AbstractCegarLoop]: Abstraction has 9175 states and 12113 transitions. [2022-11-25 16:47:05,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:47:05,048 INFO L276 IsEmpty]: Start isEmpty. Operand 9175 states and 12113 transitions. [2022-11-25 16:47:05,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-11-25 16:47:05,057 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:47:05,057 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] [2022-11-25 16:47:05,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 16:47:05,058 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-11-25 16:47:05,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:47:05,058 INFO L85 PathProgramCache]: Analyzing trace with hash 533009189, now seen corresponding path program 1 times [2022-11-25 16:47:05,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:47:05,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307988483] [2022-11-25 16:47:05,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:47:05,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:47:05,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:47:05,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:47:05,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:47:05,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307988483] [2022-11-25 16:47:05,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307988483] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:47:05,582 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:47:05,582 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 16:47:05,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880447304] [2022-11-25 16:47:05,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:47:05,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 16:47:05,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:47:05,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 16:47:05,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-25 16:47:05,590 INFO L87 Difference]: Start difference. First operand 9175 states and 12113 transitions. Second operand has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:47:09,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:47:09,821 INFO L93 Difference]: Finished difference Result 14418 states and 19726 transitions. [2022-11-25 16:47:09,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 16:47:09,822 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 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 68 [2022-11-25 16:47:09,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:47:09,846 INFO L225 Difference]: With dead ends: 14418 [2022-11-25 16:47:09,847 INFO L226 Difference]: Without dead ends: 12884 [2022-11-25 16:47:09,854 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2022-11-25 16:47:09,855 INFO L413 NwaCegarLoop]: 1533 mSDtfsCounter, 14108 mSDsluCounter, 3623 mSDsCounter, 0 mSdLazyCounter, 4339 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14108 SdHoareTripleChecker+Valid, 5156 SdHoareTripleChecker+Invalid, 4355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 4339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-11-25 16:47:09,855 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14108 Valid, 5156 Invalid, 4355 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [16 Valid, 4339 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-11-25 16:47:09,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12884 states. [2022-11-25 16:47:10,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12884 to 9015. [2022-11-25 16:47:10,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9015 states, 8998 states have (on average 1.3220715714603246) internal successors, (11896), 9014 states have internal predecessors, (11896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:47:10,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9015 states to 9015 states and 11896 transitions. [2022-11-25 16:47:10,775 INFO L78 Accepts]: Start accepts. Automaton has 9015 states and 11896 transitions. Word has length 68 [2022-11-25 16:47:10,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:47:10,776 INFO L495 AbstractCegarLoop]: Abstraction has 9015 states and 11896 transitions. [2022-11-25 16:47:10,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:47:10,776 INFO L276 IsEmpty]: Start isEmpty. Operand 9015 states and 11896 transitions. [2022-11-25 16:47:10,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-11-25 16:47:10,784 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:47:10,784 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] [2022-11-25 16:47:10,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 16:47:10,785 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-11-25 16:47:10,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:47:10,785 INFO L85 PathProgramCache]: Analyzing trace with hash -1802238869, now seen corresponding path program 1 times [2022-11-25 16:47:10,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:47:10,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293071762] [2022-11-25 16:47:10,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:47:10,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:47:10,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:47:11,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:47:11,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:47:11,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293071762] [2022-11-25 16:47:11,371 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293071762] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:47:11,371 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:47:11,371 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 16:47:11,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035359200] [2022-11-25 16:47:11,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:47:11,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 16:47:11,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:47:11,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 16:47:11,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-25 16:47:11,374 INFO L87 Difference]: Start difference. First operand 9015 states and 11896 transitions. Second operand has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:47:18,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:47:18,723 INFO L93 Difference]: Finished difference Result 17830 states and 24364 transitions. [2022-11-25 16:47:18,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 16:47:18,724 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 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 68 [2022-11-25 16:47:18,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:47:18,762 INFO L225 Difference]: With dead ends: 17830 [2022-11-25 16:47:18,762 INFO L226 Difference]: Without dead ends: 16418 [2022-11-25 16:47:18,771 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 [2022-11-25 16:47:18,772 INFO L413 NwaCegarLoop]: 1566 mSDtfsCounter, 12370 mSDsluCounter, 7029 mSDsCounter, 0 mSdLazyCounter, 8564 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12370 SdHoareTripleChecker+Valid, 8595 SdHoareTripleChecker+Invalid, 8664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 8564 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-11-25 16:47:18,772 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12370 Valid, 8595 Invalid, 8664 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [100 Valid, 8564 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2022-11-25 16:47:18,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16418 states. [2022-11-25 16:47:19,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16418 to 8953. [2022-11-25 16:47:19,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8953 states, 8936 states have (on average 1.3217323187108325) internal successors, (11811), 8952 states have internal predecessors, (11811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:47:19,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8953 states to 8953 states and 11811 transitions. [2022-11-25 16:47:19,526 INFO L78 Accepts]: Start accepts. Automaton has 8953 states and 11811 transitions. Word has length 68 [2022-11-25 16:47:19,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:47:19,528 INFO L495 AbstractCegarLoop]: Abstraction has 8953 states and 11811 transitions. [2022-11-25 16:47:19,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.555555555555555) internal successors, (68), 8 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:47:19,528 INFO L276 IsEmpty]: Start isEmpty. Operand 8953 states and 11811 transitions. [2022-11-25 16:47:19,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-11-25 16:47:19,536 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:47:19,536 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] [2022-11-25 16:47:19,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 16:47:19,537 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-11-25 16:47:19,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:47:19,537 INFO L85 PathProgramCache]: Analyzing trace with hash 2141707383, now seen corresponding path program 1 times [2022-11-25 16:47:19,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:47:19,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319688997] [2022-11-25 16:47:19,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:47:19,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:47:19,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:47:20,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:47:20,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:47:20,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319688997] [2022-11-25 16:47:20,740 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319688997] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:47:20,740 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:47:20,740 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-25 16:47:20,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492494725] [2022-11-25 16:47:20,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:47:20,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-25 16:47:20,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:47:20,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-25 16:47:20,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2022-11-25 16:47:20,742 INFO L87 Difference]: Start difference. First operand 8953 states and 11811 transitions. Second operand has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 13 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:47:27,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:47:27,014 INFO L93 Difference]: Finished difference Result 20886 states and 29227 transitions. [2022-11-25 16:47:27,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-25 16:47:27,015 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 13 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2022-11-25 16:47:27,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:47:27,116 INFO L225 Difference]: With dead ends: 20886 [2022-11-25 16:47:27,116 INFO L226 Difference]: Without dead ends: 20882 [2022-11-25 16:47:27,121 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=221, Invalid=771, Unknown=0, NotChecked=0, Total=992 [2022-11-25 16:47:27,123 INFO L413 NwaCegarLoop]: 2713 mSDtfsCounter, 21004 mSDsluCounter, 19377 mSDsCounter, 0 mSdLazyCounter, 2989 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21004 SdHoareTripleChecker+Valid, 22090 SdHoareTripleChecker+Invalid, 3010 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 2989 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-25 16:47:27,124 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21004 Valid, 22090 Invalid, 3010 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [21 Valid, 2989 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-11-25 16:47:27,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20882 states. [2022-11-25 16:47:28,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20882 to 8949. [2022-11-25 16:47:28,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8949 states, 8933 states have (on average 1.3217284227023396) internal successors, (11807), 8948 states have internal predecessors, (11807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:47:28,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8949 states to 8949 states and 11807 transitions. [2022-11-25 16:47:28,255 INFO L78 Accepts]: Start accepts. Automaton has 8949 states and 11807 transitions. Word has length 69 [2022-11-25 16:47:28,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:47:28,256 INFO L495 AbstractCegarLoop]: Abstraction has 8949 states and 11807 transitions. [2022-11-25 16:47:28,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 13 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:47:28,256 INFO L276 IsEmpty]: Start isEmpty. Operand 8949 states and 11807 transitions. [2022-11-25 16:47:28,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-11-25 16:47:28,266 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:47:28,266 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] [2022-11-25 16:47:28,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 16:47:28,267 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-11-25 16:47:28,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:47:28,267 INFO L85 PathProgramCache]: Analyzing trace with hash -50233035, now seen corresponding path program 1 times [2022-11-25 16:47:28,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:47:28,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356931713] [2022-11-25 16:47:28,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:47:28,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:47:28,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:47:28,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:47:28,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:47:28,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356931713] [2022-11-25 16:47:28,814 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356931713] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:47:28,814 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:47:28,815 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 16:47:28,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641562115] [2022-11-25 16:47:28,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:47:28,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 16:47:28,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:47:28,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 16:47:28,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-25 16:47:28,817 INFO L87 Difference]: Start difference. First operand 8949 states and 11807 transitions. Second operand has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 8 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:47:34,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:47:34,161 INFO L93 Difference]: Finished difference Result 10536 states and 13952 transitions. [2022-11-25 16:47:34,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-25 16:47:34,162 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 8 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2022-11-25 16:47:34,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:47:34,174 INFO L225 Difference]: With dead ends: 10536 [2022-11-25 16:47:34,174 INFO L226 Difference]: Without dead ends: 10530 [2022-11-25 16:47:34,177 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=103, Invalid=239, Unknown=0, NotChecked=0, Total=342 [2022-11-25 16:47:34,178 INFO L413 NwaCegarLoop]: 1475 mSDtfsCounter, 13676 mSDsluCounter, 4750 mSDsCounter, 0 mSdLazyCounter, 5080 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13676 SdHoareTripleChecker+Valid, 6225 SdHoareTripleChecker+Invalid, 5104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 5080 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-11-25 16:47:34,178 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13676 Valid, 6225 Invalid, 5104 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [24 Valid, 5080 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-11-25 16:47:34,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10530 states. [2022-11-25 16:47:35,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10530 to 8949. [2022-11-25 16:47:35,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8949 states, 8933 states have (on average 1.3216164782267996) internal successors, (11806), 8948 states have internal predecessors, (11806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:47:35,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8949 states to 8949 states and 11806 transitions. [2022-11-25 16:47:35,272 INFO L78 Accepts]: Start accepts. Automaton has 8949 states and 11806 transitions. Word has length 69 [2022-11-25 16:47:35,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:47:35,272 INFO L495 AbstractCegarLoop]: Abstraction has 8949 states and 11806 transitions. [2022-11-25 16:47:35,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 8 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:47:35,273 INFO L276 IsEmpty]: Start isEmpty. Operand 8949 states and 11806 transitions. [2022-11-25 16:47:35,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-11-25 16:47:35,280 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:47:35,281 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] [2022-11-25 16:47:35,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 16:47:35,281 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-11-25 16:47:35,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:47:35,282 INFO L85 PathProgramCache]: Analyzing trace with hash 487125926, now seen corresponding path program 1 times [2022-11-25 16:47:35,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:47:35,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623760408] [2022-11-25 16:47:35,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:47:35,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:47:35,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:47:35,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:47:35,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:47:35,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623760408] [2022-11-25 16:47:35,733 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623760408] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:47:35,733 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:47:35,733 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 16:47:35,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626800079] [2022-11-25 16:47:35,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:47:35,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 16:47:35,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:47:35,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 16:47:35,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-25 16:47:35,736 INFO L87 Difference]: Start difference. First operand 8949 states and 11806 transitions. Second operand has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 8 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:47:41,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:47:41,485 INFO L93 Difference]: Finished difference Result 11316 states and 14888 transitions. [2022-11-25 16:47:41,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-25 16:47:41,486 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 8 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2022-11-25 16:47:41,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:47:41,497 INFO L225 Difference]: With dead ends: 11316 [2022-11-25 16:47:41,498 INFO L226 Difference]: Without dead ends: 11307 [2022-11-25 16:47:41,499 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=103, Invalid=239, Unknown=0, NotChecked=0, Total=342 [2022-11-25 16:47:41,500 INFO L413 NwaCegarLoop]: 1437 mSDtfsCounter, 14070 mSDsluCounter, 4650 mSDsCounter, 0 mSdLazyCounter, 5384 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14070 SdHoareTripleChecker+Valid, 6087 SdHoareTripleChecker+Invalid, 5439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 5384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-11-25 16:47:41,501 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14070 Valid, 6087 Invalid, 5439 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [55 Valid, 5384 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-11-25 16:47:41,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11307 states. [2022-11-25 16:47:42,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11307 to 8949. [2022-11-25 16:47:42,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8949 states, 8933 states have (on average 1.3215045337512594) internal successors, (11805), 8948 states have internal predecessors, (11805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:47:42,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8949 states to 8949 states and 11805 transitions. [2022-11-25 16:47:42,575 INFO L78 Accepts]: Start accepts. Automaton has 8949 states and 11805 transitions. Word has length 69 [2022-11-25 16:47:42,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:47:42,576 INFO L495 AbstractCegarLoop]: Abstraction has 8949 states and 11805 transitions. [2022-11-25 16:47:42,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 8 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:47:42,577 INFO L276 IsEmpty]: Start isEmpty. Operand 8949 states and 11805 transitions. [2022-11-25 16:47:42,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-11-25 16:47:42,585 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:47:42,586 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] [2022-11-25 16:47:42,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-25 16:47:42,587 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-11-25 16:47:42,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:47:42,588 INFO L85 PathProgramCache]: Analyzing trace with hash -465119641, now seen corresponding path program 1 times [2022-11-25 16:47:42,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:47:42,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836769455] [2022-11-25 16:47:42,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:47:42,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:47:42,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:47:43,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:47:43,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:47:43,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836769455] [2022-11-25 16:47:43,455 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836769455] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:47:43,455 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:47:43,456 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-25 16:47:43,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063535456] [2022-11-25 16:47:43,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:47:43,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-25 16:47:43,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:47:43,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-25 16:47:43,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-11-25 16:47:43,457 INFO L87 Difference]: Start difference. First operand 8949 states and 11805 transitions. Second operand has 11 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 11 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:47:52,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:47:52,222 INFO L93 Difference]: Finished difference Result 24532 states and 34391 transitions. [2022-11-25 16:47:52,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-25 16:47:52,223 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 11 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2022-11-25 16:47:52,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:47:52,248 INFO L225 Difference]: With dead ends: 24532 [2022-11-25 16:47:52,248 INFO L226 Difference]: Without dead ends: 23117 [2022-11-25 16:47:52,254 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=270, Invalid=660, Unknown=0, NotChecked=0, Total=930 [2022-11-25 16:47:52,255 INFO L413 NwaCegarLoop]: 2514 mSDtfsCounter, 19831 mSDsluCounter, 9155 mSDsCounter, 0 mSdLazyCounter, 2757 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19831 SdHoareTripleChecker+Valid, 11669 SdHoareTripleChecker+Invalid, 2825 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 2757 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-11-25 16:47:52,255 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19831 Valid, 11669 Invalid, 2825 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [68 Valid, 2757 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-11-25 16:47:52,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23117 states. [2022-11-25 16:47:53,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23117 to 8880. [2022-11-25 16:47:53,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8880 states, 8865 states have (on average 1.321376198533559) internal successors, (11714), 8879 states have internal predecessors, (11714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:47:53,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8880 states to 8880 states and 11714 transitions. [2022-11-25 16:47:53,887 INFO L78 Accepts]: Start accepts. Automaton has 8880 states and 11714 transitions. Word has length 69 [2022-11-25 16:47:53,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:47:53,888 INFO L495 AbstractCegarLoop]: Abstraction has 8880 states and 11714 transitions. [2022-11-25 16:47:53,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 11 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:47:53,888 INFO L276 IsEmpty]: Start isEmpty. Operand 8880 states and 11714 transitions. [2022-11-25 16:47:53,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-11-25 16:47:53,895 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:47:53,895 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] [2022-11-25 16:47:53,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-25 16:47:53,896 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-11-25 16:47:53,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:47:53,896 INFO L85 PathProgramCache]: Analyzing trace with hash 215127807, now seen corresponding path program 1 times [2022-11-25 16:47:53,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:47:53,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971096126] [2022-11-25 16:47:53,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:47:53,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:47:53,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:47:54,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:47:54,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:47:54,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971096126] [2022-11-25 16:47:54,610 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971096126] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:47:54,610 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:47:54,610 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-25 16:47:54,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622076126] [2022-11-25 16:47:54,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:47:54,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 16:47:54,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:47:54,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 16:47:54,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-25 16:47:54,611 INFO L87 Difference]: Start difference. First operand 8880 states and 11714 transitions. Second operand has 12 states, 12 states have (on average 5.833333333333333) internal successors, (70), 12 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:48:06,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:48:06,113 INFO L93 Difference]: Finished difference Result 25460 states and 35982 transitions. [2022-11-25 16:48:06,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-25 16:48:06,113 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.833333333333333) internal successors, (70), 12 states have internal predecessors, (70), 0 states have call successors, (0), 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 70 [2022-11-25 16:48:06,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:48:06,140 INFO L225 Difference]: With dead ends: 25460 [2022-11-25 16:48:06,140 INFO L226 Difference]: Without dead ends: 23881 [2022-11-25 16:48:06,146 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=263, Invalid=667, Unknown=0, NotChecked=0, Total=930 [2022-11-25 16:48:06,147 INFO L413 NwaCegarLoop]: 3033 mSDtfsCounter, 14563 mSDsluCounter, 17524 mSDsCounter, 0 mSdLazyCounter, 4527 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14563 SdHoareTripleChecker+Valid, 20557 SdHoareTripleChecker+Invalid, 4596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 4527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-11-25 16:48:06,147 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14563 Valid, 20557 Invalid, 4596 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [69 Valid, 4527 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-11-25 16:48:06,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23881 states. [2022-11-25 16:48:07,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23881 to 8647. [2022-11-25 16:48:07,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8647 states, 8633 states have (on average 1.3191242905131473) internal successors, (11388), 8646 states have internal predecessors, (11388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:48:07,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8647 states to 8647 states and 11388 transitions. [2022-11-25 16:48:07,840 INFO L78 Accepts]: Start accepts. Automaton has 8647 states and 11388 transitions. Word has length 70 [2022-11-25 16:48:07,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:48:07,841 INFO L495 AbstractCegarLoop]: Abstraction has 8647 states and 11388 transitions. [2022-11-25 16:48:07,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.833333333333333) internal successors, (70), 12 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:48:07,841 INFO L276 IsEmpty]: Start isEmpty. Operand 8647 states and 11388 transitions. [2022-11-25 16:48:07,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-11-25 16:48:07,847 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:48:07,848 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] [2022-11-25 16:48:07,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-25 16:48:07,848 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-11-25 16:48:07,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:48:07,849 INFO L85 PathProgramCache]: Analyzing trace with hash 502084112, now seen corresponding path program 1 times [2022-11-25 16:48:07,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:48:07,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292158957] [2022-11-25 16:48:07,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:48:07,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:48:07,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:48:08,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:48:08,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:48:08,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292158957] [2022-11-25 16:48:08,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292158957] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:48:08,539 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:48:08,539 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-25 16:48:08,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978433175] [2022-11-25 16:48:08,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:48:08,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 16:48:08,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:48:08,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 16:48:08,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-25 16:48:08,540 INFO L87 Difference]: Start difference. First operand 8647 states and 11388 transitions. Second operand has 12 states, 12 states have (on average 5.833333333333333) internal successors, (70), 12 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:48:18,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:48:18,164 INFO L93 Difference]: Finished difference Result 19804 states and 27582 transitions. [2022-11-25 16:48:18,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-25 16:48:18,164 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.833333333333333) internal successors, (70), 12 states have internal predecessors, (70), 0 states have call successors, (0), 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 70 [2022-11-25 16:48:18,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:48:18,186 INFO L225 Difference]: With dead ends: 19804 [2022-11-25 16:48:18,186 INFO L226 Difference]: Without dead ends: 19792 [2022-11-25 16:48:18,190 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=152, Invalid=448, Unknown=0, NotChecked=0, Total=600 [2022-11-25 16:48:18,191 INFO L413 NwaCegarLoop]: 2618 mSDtfsCounter, 17185 mSDsluCounter, 12555 mSDsCounter, 0 mSdLazyCounter, 3354 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17185 SdHoareTripleChecker+Valid, 15173 SdHoareTripleChecker+Invalid, 3441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 3354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-11-25 16:48:18,191 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17185 Valid, 15173 Invalid, 3441 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [87 Valid, 3354 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-11-25 16:48:18,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19792 states. [2022-11-25 16:48:19,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19792 to 8640. [2022-11-25 16:48:19,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8640 states, 8626 states have (on average 1.3192673313239045) internal successors, (11380), 8639 states have internal predecessors, (11380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:48:19,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8640 states to 8640 states and 11380 transitions. [2022-11-25 16:48:19,894 INFO L78 Accepts]: Start accepts. Automaton has 8640 states and 11380 transitions. Word has length 70 [2022-11-25 16:48:19,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:48:19,895 INFO L495 AbstractCegarLoop]: Abstraction has 8640 states and 11380 transitions. [2022-11-25 16:48:19,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.833333333333333) internal successors, (70), 12 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:48:19,895 INFO L276 IsEmpty]: Start isEmpty. Operand 8640 states and 11380 transitions. [2022-11-25 16:48:19,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-11-25 16:48:19,901 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:48:19,902 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] [2022-11-25 16:48:19,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-25 16:48:19,902 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-11-25 16:48:19,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:48:19,903 INFO L85 PathProgramCache]: Analyzing trace with hash -683220265, now seen corresponding path program 1 times [2022-11-25 16:48:19,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:48:19,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404666866] [2022-11-25 16:48:19,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:48:19,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:48:19,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:48:19,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:48:19,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:48:19,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404666866] [2022-11-25 16:48:19,997 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404666866] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:48:19,997 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:48:19,997 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 16:48:19,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047268859] [2022-11-25 16:48:19,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:48:19,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 16:48:19,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:48:19,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 16:48:19,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 16:48:19,999 INFO L87 Difference]: Start difference. First operand 8640 states and 11380 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:48:22,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:48:22,367 INFO L93 Difference]: Finished difference Result 12575 states and 16886 transitions. [2022-11-25 16:48:22,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 16:48:22,367 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 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 70 [2022-11-25 16:48:22,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:48:22,375 INFO L225 Difference]: With dead ends: 12575 [2022-11-25 16:48:22,375 INFO L226 Difference]: Without dead ends: 7653 [2022-11-25 16:48:22,380 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 [2022-11-25 16:48:22,381 INFO L413 NwaCegarLoop]: 1950 mSDtfsCounter, 1923 mSDsluCounter, 673 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1923 SdHoareTripleChecker+Valid, 2623 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 16:48:22,381 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1923 Valid, 2623 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 16:48:22,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7653 states. [2022-11-25 16:48:24,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7653 to 7634. [2022-11-25 16:48:24,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7634 states, 7624 states have (on average 1.3374868835257083) internal successors, (10197), 7633 states have internal predecessors, (10197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:48:24,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7634 states to 7634 states and 10197 transitions. [2022-11-25 16:48:24,170 INFO L78 Accepts]: Start accepts. Automaton has 7634 states and 10197 transitions. Word has length 70 [2022-11-25 16:48:24,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:48:24,170 INFO L495 AbstractCegarLoop]: Abstraction has 7634 states and 10197 transitions. [2022-11-25 16:48:24,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:48:24,170 INFO L276 IsEmpty]: Start isEmpty. Operand 7634 states and 10197 transitions. [2022-11-25 16:48:24,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-25 16:48:24,174 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:48:24,174 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] [2022-11-25 16:48:24,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-25 16:48:24,175 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-11-25 16:48:24,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:48:24,175 INFO L85 PathProgramCache]: Analyzing trace with hash -1404122129, now seen corresponding path program 1 times [2022-11-25 16:48:24,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:48:24,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933454430] [2022-11-25 16:48:24,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:48:24,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:48:24,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:48:24,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:48:24,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:48:24,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933454430] [2022-11-25 16:48:24,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933454430] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:48:24,573 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:48:24,573 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 16:48:24,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089060331] [2022-11-25 16:48:24,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:48:24,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 16:48:24,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:48:24,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 16:48:24,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-25 16:48:24,575 INFO L87 Difference]: Start difference. First operand 7634 states and 10197 transitions. Second operand has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 8 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) [2022-11-25 16:48:32,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:48:32,816 INFO L93 Difference]: Finished difference Result 15150 states and 21099 transitions. [2022-11-25 16:48:32,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 16:48:32,816 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 8 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 [2022-11-25 16:48:32,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:48:32,832 INFO L225 Difference]: With dead ends: 15150 [2022-11-25 16:48:32,832 INFO L226 Difference]: Without dead ends: 13142 [2022-11-25 16:48:32,836 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-11-25 16:48:32,837 INFO L413 NwaCegarLoop]: 1143 mSDtfsCounter, 11085 mSDsluCounter, 3688 mSDsCounter, 0 mSdLazyCounter, 4237 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11085 SdHoareTripleChecker+Valid, 4831 SdHoareTripleChecker+Invalid, 4286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 4237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-11-25 16:48:32,837 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11085 Valid, 4831 Invalid, 4286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 4237 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-11-25 16:48:32,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13142 states. [2022-11-25 16:48:34,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13142 to 7634. [2022-11-25 16:48:34,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7634 states, 7624 states have (on average 1.3373557187827911) internal successors, (10196), 7633 states have internal predecessors, (10196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:48:34,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7634 states to 7634 states and 10196 transitions. [2022-11-25 16:48:34,738 INFO L78 Accepts]: Start accepts. Automaton has 7634 states and 10196 transitions. Word has length 71 [2022-11-25 16:48:34,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:48:34,739 INFO L495 AbstractCegarLoop]: Abstraction has 7634 states and 10196 transitions. [2022-11-25 16:48:34,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 8 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) [2022-11-25 16:48:34,739 INFO L276 IsEmpty]: Start isEmpty. Operand 7634 states and 10196 transitions. [2022-11-25 16:48:34,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-25 16:48:34,743 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:48:34,743 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] [2022-11-25 16:48:34,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-25 16:48:34,743 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-11-25 16:48:34,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:48:34,744 INFO L85 PathProgramCache]: Analyzing trace with hash 1017361466, now seen corresponding path program 1 times [2022-11-25 16:48:34,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:48:34,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042901901] [2022-11-25 16:48:34,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:48:34,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:48:34,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:48:35,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:48:35,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:48:35,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042901901] [2022-11-25 16:48:35,127 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042901901] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:48:35,127 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:48:35,127 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 16:48:35,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131313679] [2022-11-25 16:48:35,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:48:35,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 16:48:35,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:48:35,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 16:48:35,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-25 16:48:35,129 INFO L87 Difference]: Start difference. First operand 7634 states and 10196 transitions. Second operand has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 8 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) [2022-11-25 16:48:46,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:48:46,971 INFO L93 Difference]: Finished difference Result 18792 states and 26289 transitions. [2022-11-25 16:48:46,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 16:48:46,972 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 8 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 [2022-11-25 16:48:46,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:48:46,989 INFO L225 Difference]: With dead ends: 18792 [2022-11-25 16:48:46,989 INFO L226 Difference]: Without dead ends: 16715 [2022-11-25 16:48:46,993 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 [2022-11-25 16:48:46,994 INFO L413 NwaCegarLoop]: 1217 mSDtfsCounter, 9362 mSDsluCounter, 5489 mSDsCounter, 0 mSdLazyCounter, 6496 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9362 SdHoareTripleChecker+Valid, 6706 SdHoareTripleChecker+Invalid, 6574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 6496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-11-25 16:48:46,994 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9362 Valid, 6706 Invalid, 6574 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [78 Valid, 6496 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-11-25 16:48:47,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16715 states. [2022-11-25 16:48:48,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16715 to 7634. [2022-11-25 16:48:48,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7634 states, 7624 states have (on average 1.3372245540398742) internal successors, (10195), 7633 states have internal predecessors, (10195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:48:48,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7634 states to 7634 states and 10195 transitions. [2022-11-25 16:48:48,982 INFO L78 Accepts]: Start accepts. Automaton has 7634 states and 10195 transitions. Word has length 71 [2022-11-25 16:48:48,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:48:48,982 INFO L495 AbstractCegarLoop]: Abstraction has 7634 states and 10195 transitions. [2022-11-25 16:48:48,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 8 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) [2022-11-25 16:48:48,983 INFO L276 IsEmpty]: Start isEmpty. Operand 7634 states and 10195 transitions. [2022-11-25 16:48:48,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-25 16:48:48,987 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:48:48,987 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] [2022-11-25 16:48:48,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-25 16:48:48,987 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-11-25 16:48:48,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:48:48,987 INFO L85 PathProgramCache]: Analyzing trace with hash 325375151, now seen corresponding path program 1 times [2022-11-25 16:48:48,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:48:48,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953553580] [2022-11-25 16:48:48,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:48:48,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:48:49,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:48:49,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:48:49,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:48:49,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953553580] [2022-11-25 16:48:49,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953553580] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:48:49,358 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:48:49,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 16:48:49,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502765044] [2022-11-25 16:48:49,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:48:49,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 16:48:49,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:48:49,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 16:48:49,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-25 16:48:49,360 INFO L87 Difference]: Start difference. First operand 7634 states and 10195 transitions. Second operand has 8 states, 8 states have (on average 8.875) internal successors, (71), 7 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) [2022-11-25 16:48:56,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:48:56,986 INFO L93 Difference]: Finished difference Result 14607 states and 20467 transitions. [2022-11-25 16:48:56,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 16:48:56,987 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 7 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 [2022-11-25 16:48:56,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:48:56,999 INFO L225 Difference]: With dead ends: 14607 [2022-11-25 16:48:56,999 INFO L226 Difference]: Without dead ends: 12186 [2022-11-25 16:48:57,003 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2022-11-25 16:48:57,004 INFO L413 NwaCegarLoop]: 1154 mSDtfsCounter, 9125 mSDsluCounter, 3230 mSDsCounter, 0 mSdLazyCounter, 3484 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9125 SdHoareTripleChecker+Valid, 4384 SdHoareTripleChecker+Invalid, 3495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 3484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-25 16:48:57,004 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9125 Valid, 4384 Invalid, 3495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 3484 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-11-25 16:48:57,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12186 states. [2022-11-25 16:48:59,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12186 to 7634. [2022-11-25 16:48:59,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7634 states, 7624 states have (on average 1.337093389296957) internal successors, (10194), 7633 states have internal predecessors, (10194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:48:59,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7634 states to 7634 states and 10194 transitions. [2022-11-25 16:48:59,016 INFO L78 Accepts]: Start accepts. Automaton has 7634 states and 10194 transitions. Word has length 71 [2022-11-25 16:48:59,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:48:59,016 INFO L495 AbstractCegarLoop]: Abstraction has 7634 states and 10194 transitions. [2022-11-25 16:48:59,016 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 7 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) [2022-11-25 16:48:59,016 INFO L276 IsEmpty]: Start isEmpty. Operand 7634 states and 10194 transitions. [2022-11-25 16:48:59,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-25 16:48:59,023 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:48:59,023 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] [2022-11-25 16:48:59,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-25 16:48:59,024 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-11-25 16:48:59,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:48:59,024 INFO L85 PathProgramCache]: Analyzing trace with hash 912295609, now seen corresponding path program 1 times [2022-11-25 16:48:59,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:48:59,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726481693] [2022-11-25 16:48:59,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:48:59,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:48:59,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:48:59,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:48:59,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:48:59,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726481693] [2022-11-25 16:48:59,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726481693] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:48:59,115 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:48:59,115 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 16:48:59,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701668138] [2022-11-25 16:48:59,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:48:59,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 16:48:59,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:48:59,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 16:48:59,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 16:48:59,117 INFO L87 Difference]: Start difference. First operand 7634 states and 10194 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 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) [2022-11-25 16:49:03,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:49:03,021 INFO L93 Difference]: Finished difference Result 12211 states and 16641 transitions. [2022-11-25 16:49:03,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 16:49:03,022 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 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 [2022-11-25 16:49:03,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:49:03,031 INFO L225 Difference]: With dead ends: 12211 [2022-11-25 16:49:03,031 INFO L226 Difference]: Without dead ends: 7443 [2022-11-25 16:49:03,039 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 [2022-11-25 16:49:03,039 INFO L413 NwaCegarLoop]: 1545 mSDtfsCounter, 1522 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1522 SdHoareTripleChecker+Valid, 2011 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 16:49:03,040 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1522 Valid, 2011 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 16:49:03,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7443 states. [2022-11-25 16:49:05,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7443 to 7435. [2022-11-25 16:49:05,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7435 states, 7428 states have (on average 1.3613354873451804) internal successors, (10112), 7434 states have internal predecessors, (10112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:49:05,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7435 states to 7435 states and 10112 transitions. [2022-11-25 16:49:05,923 INFO L78 Accepts]: Start accepts. Automaton has 7435 states and 10112 transitions. Word has length 71 [2022-11-25 16:49:05,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:49:05,923 INFO L495 AbstractCegarLoop]: Abstraction has 7435 states and 10112 transitions. [2022-11-25 16:49:05,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 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) [2022-11-25 16:49:05,924 INFO L276 IsEmpty]: Start isEmpty. Operand 7435 states and 10112 transitions. [2022-11-25 16:49:05,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-11-25 16:49:05,928 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:49:05,928 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] [2022-11-25 16:49:05,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-25 16:49:05,928 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-11-25 16:49:05,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:49:05,929 INFO L85 PathProgramCache]: Analyzing trace with hash 2097366389, now seen corresponding path program 1 times [2022-11-25 16:49:05,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:49:05,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691843764] [2022-11-25 16:49:05,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:49:05,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:49:05,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:49:06,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:49:06,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:49:06,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691843764] [2022-11-25 16:49:06,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691843764] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:49:06,019 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:49:06,020 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 16:49:06,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598790068] [2022-11-25 16:49:06,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:49:06,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 16:49:06,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:49:06,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 16:49:06,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 16:49:06,021 INFO L87 Difference]: Start difference. First operand 7435 states and 10112 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 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) [2022-11-25 16:49:10,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:49:10,950 INFO L93 Difference]: Finished difference Result 15597 states and 21758 transitions. [2022-11-25 16:49:10,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 16:49:10,950 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 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 [2022-11-25 16:49:10,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:49:10,964 INFO L225 Difference]: With dead ends: 15597 [2022-11-25 16:49:10,965 INFO L226 Difference]: Without dead ends: 11594 [2022-11-25 16:49:10,971 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 [2022-11-25 16:49:10,971 INFO L413 NwaCegarLoop]: 1716 mSDtfsCounter, 1021 mSDsluCounter, 1300 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1021 SdHoareTripleChecker+Valid, 3016 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 16:49:10,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1021 Valid, 3016 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 16:49:10,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11594 states. [2022-11-25 16:49:15,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11594 to 11586. [2022-11-25 16:49:15,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11586 states, 11579 states have (on average 1.3704119526729424) internal successors, (15868), 11585 states have internal predecessors, (15868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:49:15,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11586 states to 11586 states and 15868 transitions. [2022-11-25 16:49:15,282 INFO L78 Accepts]: Start accepts. Automaton has 11586 states and 15868 transitions. Word has length 72 [2022-11-25 16:49:15,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:49:15,283 INFO L495 AbstractCegarLoop]: Abstraction has 11586 states and 15868 transitions. [2022-11-25 16:49:15,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 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) [2022-11-25 16:49:15,283 INFO L276 IsEmpty]: Start isEmpty. Operand 11586 states and 15868 transitions. [2022-11-25 16:49:15,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-11-25 16:49:15,287 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:49:15,288 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] [2022-11-25 16:49:15,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-25 16:49:15,288 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-11-25 16:49:15,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:49:15,288 INFO L85 PathProgramCache]: Analyzing trace with hash -804939217, now seen corresponding path program 1 times [2022-11-25 16:49:15,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:49:15,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382797530] [2022-11-25 16:49:15,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:49:15,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:49:15,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:49:15,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:49:15,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:49:15,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382797530] [2022-11-25 16:49:15,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382797530] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:49:15,379 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:49:15,379 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 16:49:15,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338765588] [2022-11-25 16:49:15,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:49:15,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 16:49:15,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:49:15,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 16:49:15,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 16:49:15,381 INFO L87 Difference]: Start difference. First operand 11586 states and 15868 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 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) [2022-11-25 16:49:22,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:49:22,503 INFO L93 Difference]: Finished difference Result 20112 states and 28661 transitions. [2022-11-25 16:49:22,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 16:49:22,504 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 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 [2022-11-25 16:49:22,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:49:22,518 INFO L225 Difference]: With dead ends: 20112 [2022-11-25 16:49:22,518 INFO L226 Difference]: Without dead ends: 13744 [2022-11-25 16:49:22,523 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 [2022-11-25 16:49:22,524 INFO L413 NwaCegarLoop]: 1622 mSDtfsCounter, 933 mSDsluCounter, 732 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 933 SdHoareTripleChecker+Valid, 2354 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 16:49:22,524 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [933 Valid, 2354 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 16:49:22,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13744 states. [2022-11-25 16:49:27,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13744 to 11092. [2022-11-25 16:49:27,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11092 states, 11085 states have (on average 1.3959404600811909) internal successors, (15474), 11091 states have internal predecessors, (15474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:49:27,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11092 states to 11092 states and 15474 transitions. [2022-11-25 16:49:27,269 INFO L78 Accepts]: Start accepts. Automaton has 11092 states and 15474 transitions. Word has length 72 [2022-11-25 16:49:27,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:49:27,269 INFO L495 AbstractCegarLoop]: Abstraction has 11092 states and 15474 transitions. [2022-11-25 16:49:27,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 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) [2022-11-25 16:49:27,270 INFO L276 IsEmpty]: Start isEmpty. Operand 11092 states and 15474 transitions. [2022-11-25 16:49:27,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-11-25 16:49:27,273 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:49:27,273 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] [2022-11-25 16:49:27,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-25 16:49:27,273 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-11-25 16:49:27,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:49:27,273 INFO L85 PathProgramCache]: Analyzing trace with hash -1735047217, now seen corresponding path program 1 times [2022-11-25 16:49:27,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:49:27,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150769073] [2022-11-25 16:49:27,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:49:27,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:49:27,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:49:27,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:49:27,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:49:27,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150769073] [2022-11-25 16:49:27,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150769073] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:49:27,357 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:49:27,357 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 16:49:27,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84515656] [2022-11-25 16:49:27,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:49:27,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 16:49:27,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:49:27,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 16:49:27,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 16:49:27,359 INFO L87 Difference]: Start difference. First operand 11092 states and 15474 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 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) [2022-11-25 16:49:36,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:49:36,475 INFO L93 Difference]: Finished difference Result 26324 states and 37340 transitions. [2022-11-25 16:49:36,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 16:49:36,476 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 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 [2022-11-25 16:49:36,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:49:36,494 INFO L225 Difference]: With dead ends: 26324 [2022-11-25 16:49:36,494 INFO L226 Difference]: Without dead ends: 18199 [2022-11-25 16:49:36,500 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 [2022-11-25 16:49:36,500 INFO L413 NwaCegarLoop]: 1788 mSDtfsCounter, 866 mSDsluCounter, 1223 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 866 SdHoareTripleChecker+Valid, 3011 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 16:49:36,501 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [866 Valid, 3011 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 16:49:36,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18199 states. [2022-11-25 16:49:45,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18199 to 18191. [2022-11-25 16:49:45,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18191 states, 18184 states have (on average 1.3875934887813461) internal successors, (25232), 18190 states have internal predecessors, (25232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:49:45,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18191 states to 18191 states and 25232 transitions. [2022-11-25 16:49:45,420 INFO L78 Accepts]: Start accepts. Automaton has 18191 states and 25232 transitions. Word has length 72 [2022-11-25 16:49:45,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:49:45,420 INFO L495 AbstractCegarLoop]: Abstraction has 18191 states and 25232 transitions. [2022-11-25 16:49:45,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 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) [2022-11-25 16:49:45,420 INFO L276 IsEmpty]: Start isEmpty. Operand 18191 states and 25232 transitions. [2022-11-25 16:49:45,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-11-25 16:49:45,424 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:49:45,425 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] [2022-11-25 16:49:45,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-25 16:49:45,425 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-11-25 16:49:45,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:49:45,425 INFO L85 PathProgramCache]: Analyzing trace with hash -746860976, now seen corresponding path program 1 times [2022-11-25 16:49:45,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:49:45,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301354611] [2022-11-25 16:49:45,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:49:45,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:49:45,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:49:45,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:49:45,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:49:45,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301354611] [2022-11-25 16:49:45,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301354611] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:49:45,507 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:49:45,507 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 16:49:45,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377746280] [2022-11-25 16:49:45,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:49:45,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 16:49:45,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:49:45,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 16:49:45,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 16:49:45,508 INFO L87 Difference]: Start difference. First operand 18191 states and 25232 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 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) [2022-11-25 16:49:58,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:49:58,796 INFO L93 Difference]: Finished difference Result 35977 states and 50660 transitions. [2022-11-25 16:49:58,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 16:49:58,797 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 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 [2022-11-25 16:49:58,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:49:58,827 INFO L225 Difference]: With dead ends: 35977 [2022-11-25 16:49:58,827 INFO L226 Difference]: Without dead ends: 19636 [2022-11-25 16:49:58,842 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 [2022-11-25 16:49:58,844 INFO L413 NwaCegarLoop]: 1395 mSDtfsCounter, 1118 mSDsluCounter, 598 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1118 SdHoareTripleChecker+Valid, 1993 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 16:49:58,846 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1118 Valid, 1993 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 16:49:58,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19636 states. [2022-11-25 16:50:08,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19636 to 16121. [2022-11-25 16:50:08,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16121 states, 16114 states have (on average 1.4037482934094576) internal successors, (22620), 16120 states have internal predecessors, (22620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:50:08,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16121 states to 16121 states and 22620 transitions. [2022-11-25 16:50:08,953 INFO L78 Accepts]: Start accepts. Automaton has 16121 states and 22620 transitions. Word has length 73 [2022-11-25 16:50:08,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:50:08,953 INFO L495 AbstractCegarLoop]: Abstraction has 16121 states and 22620 transitions. [2022-11-25 16:50:08,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 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) [2022-11-25 16:50:08,953 INFO L276 IsEmpty]: Start isEmpty. Operand 16121 states and 22620 transitions. [2022-11-25 16:50:08,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-11-25 16:50:08,956 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:50:08,956 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] [2022-11-25 16:50:08,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-25 16:50:08,957 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-11-25 16:50:08,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:50:08,957 INFO L85 PathProgramCache]: Analyzing trace with hash 202006294, now seen corresponding path program 1 times [2022-11-25 16:50:08,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:50:08,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695006830] [2022-11-25 16:50:08,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:50:08,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:50:09,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:50:09,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:50:09,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:50:09,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695006830] [2022-11-25 16:50:09,316 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695006830] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:50:09,316 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:50:09,316 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 16:50:09,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118558206] [2022-11-25 16:50:09,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:50:09,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 16:50:09,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:50:09,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 16:50:09,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-25 16:50:09,319 INFO L87 Difference]: Start difference. First operand 16121 states and 22620 transitions. Second operand has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 8 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) [2022-11-25 16:50:24,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:50:24,873 INFO L93 Difference]: Finished difference Result 21609 states and 30180 transitions. [2022-11-25 16:50:24,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 16:50:24,873 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 8 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 [2022-11-25 16:50:24,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:50:24,895 INFO L225 Difference]: With dead ends: 21609 [2022-11-25 16:50:24,895 INFO L226 Difference]: Without dead ends: 21196 [2022-11-25 16:50:24,899 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-11-25 16:50:24,900 INFO L413 NwaCegarLoop]: 876 mSDtfsCounter, 7664 mSDsluCounter, 2830 mSDsCounter, 0 mSdLazyCounter, 2805 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7664 SdHoareTripleChecker+Valid, 3706 SdHoareTripleChecker+Invalid, 2824 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 2805 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-25 16:50:24,900 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7664 Valid, 3706 Invalid, 2824 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 2805 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-25 16:50:24,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21196 states. [2022-11-25 16:50:34,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21196 to 16116. [2022-11-25 16:50:34,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16116 states, 16109 states have (on average 1.4036253026258614) internal successors, (22611), 16115 states have internal predecessors, (22611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:50:34,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16116 states to 16116 states and 22611 transitions. [2022-11-25 16:50:34,756 INFO L78 Accepts]: Start accepts. Automaton has 16116 states and 22611 transitions. Word has length 73 [2022-11-25 16:50:34,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:50:34,756 INFO L495 AbstractCegarLoop]: Abstraction has 16116 states and 22611 transitions. [2022-11-25 16:50:34,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 8 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) [2022-11-25 16:50:34,756 INFO L276 IsEmpty]: Start isEmpty. Operand 16116 states and 22611 transitions. [2022-11-25 16:50:34,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-11-25 16:50:34,759 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:50:34,759 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] [2022-11-25 16:50:34,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-25 16:50:34,760 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-11-25 16:50:34,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:50:34,760 INFO L85 PathProgramCache]: Analyzing trace with hash 33022288, now seen corresponding path program 1 times [2022-11-25 16:50:34,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:50:34,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274739225] [2022-11-25 16:50:34,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:50:34,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:50:34,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:50:34,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:50:34,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:50:34,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274739225] [2022-11-25 16:50:34,838 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274739225] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:50:34,838 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:50:34,838 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 16:50:34,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107350306] [2022-11-25 16:50:34,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:50:34,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 16:50:34,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:50:34,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 16:50:34,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 16:50:34,840 INFO L87 Difference]: Start difference. First operand 16116 states and 22611 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 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) [2022-11-25 16:50:45,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:50:45,418 INFO L93 Difference]: Finished difference Result 32713 states and 46577 transitions. [2022-11-25 16:50:45,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 16:50:45,418 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 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 [2022-11-25 16:50:45,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:50:45,440 INFO L225 Difference]: With dead ends: 32713 [2022-11-25 16:50:45,440 INFO L226 Difference]: Without dead ends: 18038 [2022-11-25 16:50:45,448 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 [2022-11-25 16:50:45,449 INFO L413 NwaCegarLoop]: 1374 mSDtfsCounter, 1315 mSDsluCounter, 510 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1315 SdHoareTripleChecker+Valid, 1884 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 16:50:45,449 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1315 Valid, 1884 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 16:50:45,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18038 states. [2022-11-25 16:50:53,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18038 to 14431. [2022-11-25 16:50:54,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14431 states, 14424 states have (on average 1.4226289517470883) internal successors, (20520), 14430 states have internal predecessors, (20520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:50:54,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14431 states to 14431 states and 20520 transitions. [2022-11-25 16:50:54,019 INFO L78 Accepts]: Start accepts. Automaton has 14431 states and 20520 transitions. Word has length 73 [2022-11-25 16:50:54,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:50:54,019 INFO L495 AbstractCegarLoop]: Abstraction has 14431 states and 20520 transitions. [2022-11-25 16:50:54,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 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) [2022-11-25 16:50:54,020 INFO L276 IsEmpty]: Start isEmpty. Operand 14431 states and 20520 transitions. [2022-11-25 16:50:54,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-11-25 16:50:54,023 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:50:54,023 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] [2022-11-25 16:50:54,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-25 16:50:54,024 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-11-25 16:50:54,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:50:54,024 INFO L85 PathProgramCache]: Analyzing trace with hash -361494476, now seen corresponding path program 1 times [2022-11-25 16:50:54,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:50:54,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385169841] [2022-11-25 16:50:54,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:50:54,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:50:54,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:50:54,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:50:54,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:50:54,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385169841] [2022-11-25 16:50:54,362 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385169841] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:50:54,362 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:50:54,363 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 16:50:54,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946479127] [2022-11-25 16:50:54,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:50:54,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 16:50:54,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:50:54,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 16:50:54,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-25 16:50:54,364 INFO L87 Difference]: Start difference. First operand 14431 states and 20520 transitions. Second operand has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 8 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) [2022-11-25 16:51:14,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:51:14,839 INFO L93 Difference]: Finished difference Result 26224 states and 37178 transitions. [2022-11-25 16:51:14,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-25 16:51:14,841 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 8 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 [2022-11-25 16:51:14,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:51:14,875 INFO L225 Difference]: With dead ends: 26224 [2022-11-25 16:51:14,875 INFO L226 Difference]: Without dead ends: 25648 [2022-11-25 16:51:14,881 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=101, Invalid=241, Unknown=0, NotChecked=0, Total=342 [2022-11-25 16:51:14,881 INFO L413 NwaCegarLoop]: 916 mSDtfsCounter, 3541 mSDsluCounter, 2819 mSDsCounter, 0 mSdLazyCounter, 3274 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3541 SdHoareTripleChecker+Valid, 3735 SdHoareTripleChecker+Invalid, 3319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 3274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-11-25 16:51:14,882 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3541 Valid, 3735 Invalid, 3319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 3274 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-11-25 16:51:14,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25648 states. [2022-11-25 16:51:23,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25648 to 14431. [2022-11-25 16:51:23,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14431 states, 14424 states have (on average 1.4224902939545203) internal successors, (20518), 14430 states have internal predecessors, (20518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:51:23,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14431 states to 14431 states and 20518 transitions. [2022-11-25 16:51:23,052 INFO L78 Accepts]: Start accepts. Automaton has 14431 states and 20518 transitions. Word has length 74 [2022-11-25 16:51:23,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:51:23,053 INFO L495 AbstractCegarLoop]: Abstraction has 14431 states and 20518 transitions. [2022-11-25 16:51:23,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 8 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) [2022-11-25 16:51:23,053 INFO L276 IsEmpty]: Start isEmpty. Operand 14431 states and 20518 transitions. [2022-11-25 16:51:23,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-11-25 16:51:23,055 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:51:23,055 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] [2022-11-25 16:51:23,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-25 16:51:23,056 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-11-25 16:51:23,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:51:23,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1074090996, now seen corresponding path program 1 times [2022-11-25 16:51:23,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:51:23,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725681078] [2022-11-25 16:51:23,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:51:23,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:51:23,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:23,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:51:23,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:51:23,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725681078] [2022-11-25 16:51:23,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725681078] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:51:23,454 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:51:23,454 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 16:51:23,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464140714] [2022-11-25 16:51:23,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:51:23,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 16:51:23,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:51:23,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 16:51:23,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-25 16:51:23,456 INFO L87 Difference]: Start difference. First operand 14431 states and 20518 transitions. Second operand has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 8 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) [2022-11-25 16:51:38,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:51:38,244 INFO L93 Difference]: Finished difference Result 19451 states and 27512 transitions. [2022-11-25 16:51:38,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 16:51:38,245 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 8 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 [2022-11-25 16:51:38,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:51:38,273 INFO L225 Difference]: With dead ends: 19451 [2022-11-25 16:51:38,273 INFO L226 Difference]: Without dead ends: 19033 [2022-11-25 16:51:38,278 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-11-25 16:51:38,280 INFO L413 NwaCegarLoop]: 852 mSDtfsCounter, 7296 mSDsluCounter, 2722 mSDsCounter, 0 mSdLazyCounter, 2691 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7296 SdHoareTripleChecker+Valid, 3574 SdHoareTripleChecker+Invalid, 2710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 2691 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-25 16:51:38,280 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7296 Valid, 3574 Invalid, 2710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 2691 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-25 16:51:38,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19033 states. [2022-11-25 16:51:48,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19033 to 14431. [2022-11-25 16:51:48,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14431 states, 14424 states have (on average 1.4223516361619524) internal successors, (20516), 14430 states have internal predecessors, (20516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:51:48,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14431 states to 14431 states and 20516 transitions. [2022-11-25 16:51:48,135 INFO L78 Accepts]: Start accepts. Automaton has 14431 states and 20516 transitions. Word has length 74 [2022-11-25 16:51:48,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:51:48,135 INFO L495 AbstractCegarLoop]: Abstraction has 14431 states and 20516 transitions. [2022-11-25 16:51:48,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 8 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) [2022-11-25 16:51:48,136 INFO L276 IsEmpty]: Start isEmpty. Operand 14431 states and 20516 transitions. [2022-11-25 16:51:48,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-11-25 16:51:48,138 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:51:48,138 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] [2022-11-25 16:51:48,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-11-25 16:51:48,138 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-11-25 16:51:48,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:51:48,139 INFO L85 PathProgramCache]: Analyzing trace with hash -281417774, now seen corresponding path program 1 times [2022-11-25 16:51:48,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:51:48,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747098845] [2022-11-25 16:51:48,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:51:48,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:51:48,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:51:48,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:51:48,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:51:48,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747098845] [2022-11-25 16:51:48,488 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747098845] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:51:48,488 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:51:48,488 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 16:51:48,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662817859] [2022-11-25 16:51:48,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:51:48,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 16:51:48,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:51:48,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 16:51:48,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-25 16:51:48,490 INFO L87 Difference]: Start difference. First operand 14431 states and 20516 transitions. Second operand has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 8 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) [2022-11-25 16:52:03,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:52:03,593 INFO L93 Difference]: Finished difference Result 19630 states and 27704 transitions. [2022-11-25 16:52:03,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 16:52:03,593 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 8 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 [2022-11-25 16:52:03,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:52:03,616 INFO L225 Difference]: With dead ends: 19630 [2022-11-25 16:52:03,616 INFO L226 Difference]: Without dead ends: 19168 [2022-11-25 16:52:03,620 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-11-25 16:52:03,620 INFO L413 NwaCegarLoop]: 910 mSDtfsCounter, 6976 mSDsluCounter, 2869 mSDsCounter, 0 mSdLazyCounter, 2949 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6976 SdHoareTripleChecker+Valid, 3779 SdHoareTripleChecker+Invalid, 2970 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 2949 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-25 16:52:03,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6976 Valid, 3779 Invalid, 2970 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 2949 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-25 16:52:03,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19168 states. [2022-11-25 16:52:12,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19168 to 14431. [2022-11-25 16:52:12,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14431 states, 14424 states have (on average 1.4222129783693844) internal successors, (20514), 14430 states have internal predecessors, (20514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:52:12,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14431 states to 14431 states and 20514 transitions. [2022-11-25 16:52:12,429 INFO L78 Accepts]: Start accepts. Automaton has 14431 states and 20514 transitions. Word has length 74 [2022-11-25 16:52:12,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:52:12,429 INFO L495 AbstractCegarLoop]: Abstraction has 14431 states and 20514 transitions. [2022-11-25 16:52:12,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 8 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) [2022-11-25 16:52:12,430 INFO L276 IsEmpty]: Start isEmpty. Operand 14431 states and 20514 transitions. [2022-11-25 16:52:12,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-11-25 16:52:12,432 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:52:12,432 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] [2022-11-25 16:52:12,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-11-25 16:52:12,432 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-11-25 16:52:12,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:52:12,433 INFO L85 PathProgramCache]: Analyzing trace with hash -612402544, now seen corresponding path program 1 times [2022-11-25 16:52:12,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:52:12,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952167296] [2022-11-25 16:52:12,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:52:12,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:52:12,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:52:13,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:52:13,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:52:13,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952167296] [2022-11-25 16:52:13,055 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952167296] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:52:13,055 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:52:13,055 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-25 16:52:13,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964003865] [2022-11-25 16:52:13,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:52:13,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 16:52:13,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:52:13,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 16:52:13,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-25 16:52:13,056 INFO L87 Difference]: Start difference. First operand 14431 states and 20514 transitions. Second operand has 12 states, 12 states have (on average 6.166666666666667) internal successors, (74), 11 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) [2022-11-25 16:52:53,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:52:53,878 INFO L93 Difference]: Finished difference Result 54138 states and 77739 transitions. [2022-11-25 16:52:53,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-25 16:52:53,878 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.166666666666667) internal successors, (74), 11 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 [2022-11-25 16:52:53,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:52:53,961 INFO L225 Difference]: With dead ends: 54138 [2022-11-25 16:52:53,961 INFO L226 Difference]: Without dead ends: 53702 [2022-11-25 16:52:53,970 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 358 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=367, Invalid=1039, Unknown=0, NotChecked=0, Total=1406 [2022-11-25 16:52:53,970 INFO L413 NwaCegarLoop]: 1012 mSDtfsCounter, 10895 mSDsluCounter, 3372 mSDsCounter, 0 mSdLazyCounter, 3655 mSolverCounterSat, 283 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10895 SdHoareTripleChecker+Valid, 4384 SdHoareTripleChecker+Invalid, 3938 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 283 IncrementalHoareTripleChecker+Valid, 3655 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-11-25 16:52:53,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10895 Valid, 4384 Invalid, 3938 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [283 Valid, 3655 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-11-25 16:52:54,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53702 states. [2022-11-25 16:53:02,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53702 to 14436. [2022-11-25 16:53:02,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14436 states, 14429 states have (on average 1.4220666712869914) internal successors, (20519), 14435 states have internal predecessors, (20519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:53:02,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14436 states to 14436 states and 20519 transitions. [2022-11-25 16:53:02,684 INFO L78 Accepts]: Start accepts. Automaton has 14436 states and 20519 transitions. Word has length 74 [2022-11-25 16:53:02,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:53:02,684 INFO L495 AbstractCegarLoop]: Abstraction has 14436 states and 20519 transitions. [2022-11-25 16:53:02,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.166666666666667) internal successors, (74), 11 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) [2022-11-25 16:53:02,684 INFO L276 IsEmpty]: Start isEmpty. Operand 14436 states and 20519 transitions. [2022-11-25 16:53:02,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-11-25 16:53:02,686 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:53:02,686 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] [2022-11-25 16:53:02,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-11-25 16:53:02,686 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-11-25 16:53:02,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:53:02,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1442340775, now seen corresponding path program 1 times [2022-11-25 16:53:02,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:53:02,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142462463] [2022-11-25 16:53:02,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:53:02,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:53:02,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:53:02,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:53:02,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:53:02,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142462463] [2022-11-25 16:53:02,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142462463] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:53:02,982 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:53:02,982 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 16:53:02,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071027574] [2022-11-25 16:53:02,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:53:02,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 16:53:02,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:53:02,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 16:53:02,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-25 16:53:02,983 INFO L87 Difference]: Start difference. First operand 14436 states and 20519 transitions. Second operand has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 8 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) [2022-11-25 16:53:17,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:53:17,413 INFO L93 Difference]: Finished difference Result 19452 states and 27508 transitions. [2022-11-25 16:53:17,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 16:53:17,413 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 8 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 [2022-11-25 16:53:17,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:53:17,433 INFO L225 Difference]: With dead ends: 19452 [2022-11-25 16:53:17,434 INFO L226 Difference]: Without dead ends: 19038 [2022-11-25 16:53:17,437 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2022-11-25 16:53:17,438 INFO L413 NwaCegarLoop]: 881 mSDtfsCounter, 7159 mSDsluCounter, 2808 mSDsCounter, 0 mSdLazyCounter, 2735 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7159 SdHoareTripleChecker+Valid, 3689 SdHoareTripleChecker+Invalid, 2754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 2735 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-25 16:53:17,438 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7159 Valid, 3689 Invalid, 2754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 2735 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-25 16:53:17,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19038 states. [2022-11-25 16:53:25,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19038 to 14436. [2022-11-25 16:53:25,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14436 states, 14429 states have (on average 1.4219973664148589) internal successors, (20518), 14435 states have internal predecessors, (20518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:53:25,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14436 states to 14436 states and 20518 transitions. [2022-11-25 16:53:25,644 INFO L78 Accepts]: Start accepts. Automaton has 14436 states and 20518 transitions. Word has length 74 [2022-11-25 16:53:25,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:53:25,644 INFO L495 AbstractCegarLoop]: Abstraction has 14436 states and 20518 transitions. [2022-11-25 16:53:25,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 8 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) [2022-11-25 16:53:25,645 INFO L276 IsEmpty]: Start isEmpty. Operand 14436 states and 20518 transitions. [2022-11-25 16:53:25,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-11-25 16:53:25,647 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:53:25,647 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] [2022-11-25 16:53:25,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-11-25 16:53:25,647 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-11-25 16:53:25,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:53:25,648 INFO L85 PathProgramCache]: Analyzing trace with hash 426754260, now seen corresponding path program 1 times [2022-11-25 16:53:25,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:53:25,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779049084] [2022-11-25 16:53:25,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:53:25,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:53:25,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:53:25,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:53:25,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:53:25,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779049084] [2022-11-25 16:53:25,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779049084] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:53:25,909 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:53:25,910 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 16:53:25,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380722413] [2022-11-25 16:53:25,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:53:25,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 16:53:25,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:53:25,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 16:53:25,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-25 16:53:25,912 INFO L87 Difference]: Start difference. First operand 14436 states and 20518 transitions. Second operand has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 8 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) [2022-11-25 16:53:40,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:53:40,463 INFO L93 Difference]: Finished difference Result 19452 states and 27507 transitions. [2022-11-25 16:53:40,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 16:53:40,463 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 8 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 [2022-11-25 16:53:40,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:53:40,482 INFO L225 Difference]: With dead ends: 19452 [2022-11-25 16:53:40,482 INFO L226 Difference]: Without dead ends: 19038 [2022-11-25 16:53:40,485 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 [2022-11-25 16:53:40,486 INFO L413 NwaCegarLoop]: 925 mSDtfsCounter, 3519 mSDsluCounter, 2840 mSDsCounter, 0 mSdLazyCounter, 2824 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3519 SdHoareTripleChecker+Valid, 3765 SdHoareTripleChecker+Invalid, 2842 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 2824 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-25 16:53:40,486 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3519 Valid, 3765 Invalid, 2842 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 2824 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-25 16:53:40,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19038 states. [2022-11-25 16:53:48,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19038 to 14436. [2022-11-25 16:53:48,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14436 states, 14429 states have (on average 1.4219280615427266) internal successors, (20517), 14435 states have internal predecessors, (20517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:53:48,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14436 states to 14436 states and 20517 transitions. [2022-11-25 16:53:48,745 INFO L78 Accepts]: Start accepts. Automaton has 14436 states and 20517 transitions. Word has length 74 [2022-11-25 16:53:48,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:53:48,745 INFO L495 AbstractCegarLoop]: Abstraction has 14436 states and 20517 transitions. [2022-11-25 16:53:48,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.222222222222221) internal successors, (74), 8 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) [2022-11-25 16:53:48,746 INFO L276 IsEmpty]: Start isEmpty. Operand 14436 states and 20517 transitions. [2022-11-25 16:53:48,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-25 16:53:48,748 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:53:48,748 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] [2022-11-25 16:53:48,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-11-25 16:53:48,749 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-11-25 16:53:48,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:53:48,749 INFO L85 PathProgramCache]: Analyzing trace with hash -125555062, now seen corresponding path program 1 times [2022-11-25 16:53:48,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:53:48,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784198037] [2022-11-25 16:53:48,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:53:48,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:53:48,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:53:48,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:53:48,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:53:48,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784198037] [2022-11-25 16:53:48,813 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784198037] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:53:48,813 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:53:48,813 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 16:53:48,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224633602] [2022-11-25 16:53:48,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:53:48,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 16:53:48,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:53:48,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 16:53:48,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 16:53:48,815 INFO L87 Difference]: Start difference. First operand 14436 states and 20517 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 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) [2022-11-25 16:54:01,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:54:01,325 INFO L93 Difference]: Finished difference Result 33102 states and 47850 transitions. [2022-11-25 16:54:01,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 16:54:01,326 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 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 [2022-11-25 16:54:01,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:54:01,347 INFO L225 Difference]: With dead ends: 33102 [2022-11-25 16:54:01,347 INFO L226 Difference]: Without dead ends: 20745 [2022-11-25 16:54:01,353 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 [2022-11-25 16:54:01,354 INFO L413 NwaCegarLoop]: 1386 mSDtfsCounter, 867 mSDsluCounter, 548 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 867 SdHoareTripleChecker+Valid, 1934 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 16:54:01,354 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [867 Valid, 1934 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 16:54:01,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20745 states. [2022-11-25 16:54:11,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20745 to 16694. [2022-11-25 16:54:11,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16694 states, 16687 states have (on average 1.4185293941391501) internal successors, (23671), 16693 states have internal predecessors, (23671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:54:11,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16694 states to 16694 states and 23671 transitions. [2022-11-25 16:54:11,168 INFO L78 Accepts]: Start accepts. Automaton has 16694 states and 23671 transitions. Word has length 75 [2022-11-25 16:54:11,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:54:11,168 INFO L495 AbstractCegarLoop]: Abstraction has 16694 states and 23671 transitions. [2022-11-25 16:54:11,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 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) [2022-11-25 16:54:11,169 INFO L276 IsEmpty]: Start isEmpty. Operand 16694 states and 23671 transitions. [2022-11-25 16:54:11,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-25 16:54:11,170 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:54:11,171 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] [2022-11-25 16:54:11,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-11-25 16:54:11,171 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-11-25 16:54:11,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:54:11,171 INFO L85 PathProgramCache]: Analyzing trace with hash 1549698848, now seen corresponding path program 1 times [2022-11-25 16:54:11,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:54:11,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073631222] [2022-11-25 16:54:11,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:54:11,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:54:11,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:54:11,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:54:11,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:54:11,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073631222] [2022-11-25 16:54:11,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073631222] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:54:11,435 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:54:11,435 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 16:54:11,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331483182] [2022-11-25 16:54:11,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:54:11,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 16:54:11,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:54:11,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 16:54:11,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-25 16:54:11,437 INFO L87 Difference]: Start difference. First operand 16694 states and 23671 transitions. Second operand has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 8 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) [2022-11-25 16:54:27,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:54:27,881 INFO L93 Difference]: Finished difference Result 21701 states and 30519 transitions. [2022-11-25 16:54:27,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 16:54:27,881 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 8 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 [2022-11-25 16:54:27,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:54:27,909 INFO L225 Difference]: With dead ends: 21701 [2022-11-25 16:54:27,910 INFO L226 Difference]: Without dead ends: 21554 [2022-11-25 16:54:27,914 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 [2022-11-25 16:54:27,915 INFO L413 NwaCegarLoop]: 941 mSDtfsCounter, 3365 mSDsluCounter, 2861 mSDsCounter, 0 mSdLazyCounter, 3018 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3365 SdHoareTripleChecker+Valid, 3802 SdHoareTripleChecker+Invalid, 3038 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 3018 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-25 16:54:27,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3365 Valid, 3802 Invalid, 3038 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 3018 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-25 16:54:27,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21554 states. [2022-11-25 16:54:37,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21554 to 16689. [2022-11-25 16:54:37,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16689 states, 16682 states have (on average 1.418594892698717) internal successors, (23665), 16688 states have internal predecessors, (23665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:54:37,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16689 states to 16689 states and 23665 transitions. [2022-11-25 16:54:37,999 INFO L78 Accepts]: Start accepts. Automaton has 16689 states and 23665 transitions. Word has length 75 [2022-11-25 16:54:37,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:54:37,999 INFO L495 AbstractCegarLoop]: Abstraction has 16689 states and 23665 transitions. [2022-11-25 16:54:37,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 8 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) [2022-11-25 16:54:38,000 INFO L276 IsEmpty]: Start isEmpty. Operand 16689 states and 23665 transitions. [2022-11-25 16:54:38,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-11-25 16:54:38,003 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:54:38,003 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] [2022-11-25 16:54:38,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-11-25 16:54:38,003 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-11-25 16:54:38,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:54:38,004 INFO L85 PathProgramCache]: Analyzing trace with hash 1153859535, now seen corresponding path program 1 times [2022-11-25 16:54:38,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:54:38,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622027419] [2022-11-25 16:54:38,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:54:38,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:54:38,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:54:38,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:54:38,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:54:38,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622027419] [2022-11-25 16:54:38,667 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622027419] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:54:38,667 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:54:38,667 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-25 16:54:38,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008321275] [2022-11-25 16:54:38,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:54:38,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-25 16:54:38,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:54:38,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-25 16:54:38,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-25 16:54:38,668 INFO L87 Difference]: Start difference. First operand 16689 states and 23665 transitions. Second operand has 13 states, 13 states have (on average 5.923076923076923) internal successors, (77), 13 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:55:16,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:55:16,527 INFO L93 Difference]: Finished difference Result 49541 states and 70522 transitions. [2022-11-25 16:55:16,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-11-25 16:55:16,527 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.923076923076923) internal successors, (77), 13 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2022-11-25 16:55:16,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:55:16,601 INFO L225 Difference]: With dead ends: 49541 [2022-11-25 16:55:16,601 INFO L226 Difference]: Without dead ends: 49405 [2022-11-25 16:55:16,610 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=191, Invalid=621, Unknown=0, NotChecked=0, Total=812 [2022-11-25 16:55:16,611 INFO L413 NwaCegarLoop]: 1475 mSDtfsCounter, 9454 mSDsluCounter, 9205 mSDsCounter, 0 mSdLazyCounter, 1502 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9454 SdHoareTripleChecker+Valid, 10680 SdHoareTripleChecker+Invalid, 1529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-25 16:55:16,611 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9454 Valid, 10680 Invalid, 1529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1502 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-25 16:55:16,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49405 states. [2022-11-25 16:55:27,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49405 to 16683. [2022-11-25 16:55:27,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16683 states, 16677 states have (on average 1.4184805420639204) internal successors, (23656), 16682 states have internal predecessors, (23656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:55:27,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16683 states to 16683 states and 23656 transitions. [2022-11-25 16:55:27,434 INFO L78 Accepts]: Start accepts. Automaton has 16683 states and 23656 transitions. Word has length 77 [2022-11-25 16:55:27,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:55:27,434 INFO L495 AbstractCegarLoop]: Abstraction has 16683 states and 23656 transitions. [2022-11-25 16:55:27,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.923076923076923) internal successors, (77), 13 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:55:27,434 INFO L276 IsEmpty]: Start isEmpty. Operand 16683 states and 23656 transitions. [2022-11-25 16:55:27,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-11-25 16:55:27,437 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:55:27,437 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] [2022-11-25 16:55:27,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-11-25 16:55:27,437 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-11-25 16:55:27,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:55:27,438 INFO L85 PathProgramCache]: Analyzing trace with hash 1139606206, now seen corresponding path program 1 times [2022-11-25 16:55:27,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:55:27,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770370247] [2022-11-25 16:55:27,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:55:27,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:55:27,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:55:28,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:55:28,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:55:28,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770370247] [2022-11-25 16:55:28,039 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770370247] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:55:28,039 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:55:28,039 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-25 16:55:28,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415964452] [2022-11-25 16:55:28,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:55:28,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 16:55:28,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:55:28,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 16:55:28,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-25 16:55:28,040 INFO L87 Difference]: Start difference. First operand 16683 states and 23656 transitions. Second operand has 12 states, 12 states have (on average 6.416666666666667) internal successors, (77), 12 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:55:56,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:55:56,351 INFO L93 Difference]: Finished difference Result 35816 states and 50761 transitions. [2022-11-25 16:55:56,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-25 16:55:56,352 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.416666666666667) internal successors, (77), 12 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2022-11-25 16:55:56,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:55:56,404 INFO L225 Difference]: With dead ends: 35816 [2022-11-25 16:55:56,404 INFO L226 Difference]: Without dead ends: 35612 [2022-11-25 16:55:56,411 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=99, Invalid=321, Unknown=0, NotChecked=0, Total=420 [2022-11-25 16:55:56,412 INFO L413 NwaCegarLoop]: 1532 mSDtfsCounter, 8000 mSDsluCounter, 5563 mSDsCounter, 0 mSdLazyCounter, 1279 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8000 SdHoareTripleChecker+Valid, 7095 SdHoareTripleChecker+Invalid, 1314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-25 16:55:56,412 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8000 Valid, 7095 Invalid, 1314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1279 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-25 16:55:56,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35612 states. [2022-11-25 16:56:07,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35612 to 16609. [2022-11-25 16:56:07,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16609 states, 16605 states have (on average 1.4187292984040951) internal successors, (23558), 16608 states have internal predecessors, (23558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:07,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16609 states to 16609 states and 23558 transitions. [2022-11-25 16:56:07,158 INFO L78 Accepts]: Start accepts. Automaton has 16609 states and 23558 transitions. Word has length 77 [2022-11-25 16:56:07,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:56:07,158 INFO L495 AbstractCegarLoop]: Abstraction has 16609 states and 23558 transitions. [2022-11-25 16:56:07,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.416666666666667) internal successors, (77), 12 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:07,158 INFO L276 IsEmpty]: Start isEmpty. Operand 16609 states and 23558 transitions. [2022-11-25 16:56:07,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-11-25 16:56:07,161 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:56:07,161 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] [2022-11-25 16:56:07,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-11-25 16:56:07,161 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-11-25 16:56:07,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:56:07,161 INFO L85 PathProgramCache]: Analyzing trace with hash 1710699480, now seen corresponding path program 1 times [2022-11-25 16:56:07,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:56:07,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032944431] [2022-11-25 16:56:07,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:56:07,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:56:07,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:56:08,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:56:08,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:56:08,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032944431] [2022-11-25 16:56:08,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032944431] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:56:08,792 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:56:08,793 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-11-25 16:56:08,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741389087] [2022-11-25 16:56:08,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:56:08,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-11-25 16:56:08,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:56:08,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-11-25 16:56:08,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=487, Unknown=0, NotChecked=0, Total=552 [2022-11-25 16:56:08,794 INFO L87 Difference]: Start difference. First operand 16609 states and 23558 transitions. Second operand has 24 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 24 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:36,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:56:36,377 INFO L93 Difference]: Finished difference Result 25630 states and 36151 transitions. [2022-11-25 16:56:36,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-11-25 16:56:36,378 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 24 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2022-11-25 16:56:36,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:56:36,406 INFO L225 Difference]: With dead ends: 25630 [2022-11-25 16:56:36,406 INFO L226 Difference]: Without dead ends: 25496 [2022-11-25 16:56:36,410 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 242 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=344, Invalid=1462, Unknown=0, NotChecked=0, Total=1806 [2022-11-25 16:56:36,411 INFO L413 NwaCegarLoop]: 1431 mSDtfsCounter, 9587 mSDsluCounter, 20296 mSDsCounter, 0 mSdLazyCounter, 7704 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9587 SdHoareTripleChecker+Valid, 21727 SdHoareTripleChecker+Invalid, 7729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 7704 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-11-25 16:56:36,411 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9587 Valid, 21727 Invalid, 7729 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [25 Valid, 7704 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2022-11-25 16:56:36,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25496 states. [2022-11-25 16:56:47,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25496 to 16624. [2022-11-25 16:56:47,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16624 states, 16620 states have (on average 1.418531889290012) internal successors, (23576), 16623 states have internal predecessors, (23576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:47,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16624 states to 16624 states and 23576 transitions. [2022-11-25 16:56:47,324 INFO L78 Accepts]: Start accepts. Automaton has 16624 states and 23576 transitions. Word has length 77 [2022-11-25 16:56:47,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:56:47,325 INFO L495 AbstractCegarLoop]: Abstraction has 16624 states and 23576 transitions. [2022-11-25 16:56:47,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 24 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:56:47,325 INFO L276 IsEmpty]: Start isEmpty. Operand 16624 states and 23576 transitions. [2022-11-25 16:56:47,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-11-25 16:56:47,327 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:56:47,327 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] [2022-11-25 16:56:47,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-11-25 16:56:47,327 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-11-25 16:56:47,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:56:47,328 INFO L85 PathProgramCache]: Analyzing trace with hash -621222146, now seen corresponding path program 1 times [2022-11-25 16:56:47,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:56:47,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767068112] [2022-11-25 16:56:47,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:56:47,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:56:47,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:56:47,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:56:47,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:56:47,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767068112] [2022-11-25 16:56:47,839 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767068112] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:56:47,839 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:56:47,839 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-25 16:56:47,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661116652] [2022-11-25 16:56:47,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:56:47,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-25 16:56:47,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:56:47,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-25 16:56:47,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-11-25 16:56:47,841 INFO L87 Difference]: Start difference. First operand 16624 states and 23576 transitions. Second operand has 11 states, 11 states have (on average 7.0) internal successors, (77), 11 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:17,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:57:17,042 INFO L93 Difference]: Finished difference Result 35491 states and 50393 transitions. [2022-11-25 16:57:17,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-25 16:57:17,043 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.0) internal successors, (77), 11 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2022-11-25 16:57:17,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:57:17,088 INFO L225 Difference]: With dead ends: 35491 [2022-11-25 16:57:17,088 INFO L226 Difference]: Without dead ends: 35268 [2022-11-25 16:57:17,093 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=175, Invalid=425, Unknown=0, NotChecked=0, Total=600 [2022-11-25 16:57:17,094 INFO L413 NwaCegarLoop]: 1282 mSDtfsCounter, 9204 mSDsluCounter, 5320 mSDsCounter, 0 mSdLazyCounter, 1179 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9204 SdHoareTripleChecker+Valid, 6602 SdHoareTripleChecker+Invalid, 1204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-25 16:57:17,094 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9204 Valid, 6602 Invalid, 1204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1179 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-25 16:57:17,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35268 states. [2022-11-25 16:57:28,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35268 to 16531. [2022-11-25 16:57:28,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16531 states, 16530 states have (on average 1.4191167574107684) internal successors, (23458), 16530 states have internal predecessors, (23458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:28,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16531 states to 16531 states and 23458 transitions. [2022-11-25 16:57:28,199 INFO L78 Accepts]: Start accepts. Automaton has 16531 states and 23458 transitions. Word has length 77 [2022-11-25 16:57:28,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:57:28,200 INFO L495 AbstractCegarLoop]: Abstraction has 16531 states and 23458 transitions. [2022-11-25 16:57:28,200 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.0) internal successors, (77), 11 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:57:28,200 INFO L276 IsEmpty]: Start isEmpty. Operand 16531 states and 23458 transitions. [2022-11-25 16:57:28,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-25 16:57:28,204 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:57:28,204 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] [2022-11-25 16:57:28,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-11-25 16:57:28,204 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-11-25 16:57:28,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:57:28,205 INFO L85 PathProgramCache]: Analyzing trace with hash 703536593, now seen corresponding path program 1 times [2022-11-25 16:57:28,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:57:28,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147785493] [2022-11-25 16:57:28,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:57:28,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:57:28,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:57:28,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:57:28,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:57:28,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147785493] [2022-11-25 16:57:28,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147785493] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:57:28,338 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:57:28,338 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 16:57:28,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333037761] [2022-11-25 16:57:28,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:57:28,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 16:57:28,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:57:28,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 16:57:28,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-25 16:57:28,339 INFO L87 Difference]: Start difference. First operand 16531 states and 23458 transitions. Second operand has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 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) [2022-11-25 16:58:01,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:58:01,802 INFO L93 Difference]: Finished difference Result 61893 states and 88783 transitions. [2022-11-25 16:58:01,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 16:58:01,803 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 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 [2022-11-25 16:58:01,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:58:01,864 INFO L225 Difference]: With dead ends: 61893 [2022-11-25 16:58:01,864 INFO L226 Difference]: Without dead ends: 47043 [2022-11-25 16:58:01,878 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-25 16:58:01,878 INFO L413 NwaCegarLoop]: 1177 mSDtfsCounter, 4513 mSDsluCounter, 1295 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4513 SdHoareTripleChecker+Valid, 2472 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 16:58:01,879 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4513 Valid, 2472 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 16:58:01,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47043 states. [2022-11-25 16:58:23,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47043 to 30563. [2022-11-25 16:58:23,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30563 states, 30562 states have (on average 1.4141090242785157) internal successors, (43218), 30562 states have internal predecessors, (43218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:23,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30563 states to 30563 states and 43218 transitions. [2022-11-25 16:58:23,753 INFO L78 Accepts]: Start accepts. Automaton has 30563 states and 43218 transitions. Word has length 84 [2022-11-25 16:58:23,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:58:23,753 INFO L495 AbstractCegarLoop]: Abstraction has 30563 states and 43218 transitions. [2022-11-25 16:58:23,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 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) [2022-11-25 16:58:23,754 INFO L276 IsEmpty]: Start isEmpty. Operand 30563 states and 43218 transitions. [2022-11-25 16:58:23,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-11-25 16:58:23,760 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:58:23,760 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] [2022-11-25 16:58:23,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-11-25 16:58:23,760 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-11-25 16:58:23,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:58:23,761 INFO L85 PathProgramCache]: Analyzing trace with hash -202569644, now seen corresponding path program 1 times [2022-11-25 16:58:23,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:58:23,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552979801] [2022-11-25 16:58:23,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:58:23,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:58:23,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:58:23,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:58:23,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:58:23,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552979801] [2022-11-25 16:58:23,922 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552979801] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:58:23,922 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:58:23,922 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 16:58:23,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138427812] [2022-11-25 16:58:23,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:58:23,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 16:58:23,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:58:23,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 16:58:23,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-25 16:58:23,924 INFO L87 Difference]: Start difference. First operand 30563 states and 43218 transitions. Second operand has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 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) [2022-11-25 16:58:43,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:58:43,352 INFO L93 Difference]: Finished difference Result 54327 states and 77024 transitions. [2022-11-25 16:58:43,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 16:58:43,353 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 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 [2022-11-25 16:58:43,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:58:43,385 INFO L225 Difference]: With dead ends: 54327 [2022-11-25 16:58:43,385 INFO L226 Difference]: Without dead ends: 25433 [2022-11-25 16:58:43,400 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-25 16:58:43,400 INFO L413 NwaCegarLoop]: 1172 mSDtfsCounter, 2558 mSDsluCounter, 984 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2558 SdHoareTripleChecker+Valid, 2156 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-25 16:58:43,400 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2558 Valid, 2156 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-25 16:58:43,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25433 states. [2022-11-25 16:59:03,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25433 to 25427. [2022-11-25 16:59:03,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25427 states, 25426 states have (on average 1.4057657515928577) internal successors, (35743), 25426 states have internal predecessors, (35743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:59:03,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25427 states to 25427 states and 35743 transitions. [2022-11-25 16:59:03,990 INFO L78 Accepts]: Start accepts. Automaton has 25427 states and 35743 transitions. Word has length 85 [2022-11-25 16:59:03,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:59:03,990 INFO L495 AbstractCegarLoop]: Abstraction has 25427 states and 35743 transitions. [2022-11-25 16:59:03,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 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) [2022-11-25 16:59:03,990 INFO L276 IsEmpty]: Start isEmpty. Operand 25427 states and 35743 transitions. [2022-11-25 16:59:03,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-11-25 16:59:03,996 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:59:03,997 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] [2022-11-25 16:59:03,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-11-25 16:59:03,997 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-11-25 16:59:03,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:59:03,998 INFO L85 PathProgramCache]: Analyzing trace with hash 1479848435, now seen corresponding path program 1 times [2022-11-25 16:59:03,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:59:03,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783662370] [2022-11-25 16:59:03,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:59:03,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:59:04,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:59:04,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:59:04,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:59:04,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783662370] [2022-11-25 16:59:04,127 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783662370] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:59:04,127 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:59:04,127 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 16:59:04,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682984014] [2022-11-25 16:59:04,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:59:04,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 16:59:04,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:59:04,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 16:59:04,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 16:59:04,129 INFO L87 Difference]: Start difference. First operand 25427 states and 35743 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 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) [2022-11-25 16:59:48,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:59:48,094 INFO L93 Difference]: Finished difference Result 71291 states and 100669 transitions. [2022-11-25 16:59:48,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 16:59:48,095 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 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 [2022-11-25 16:59:48,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:59:48,173 INFO L225 Difference]: With dead ends: 71291 [2022-11-25 16:59:48,173 INFO L226 Difference]: Without dead ends: 47533 [2022-11-25 16:59:48,193 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 [2022-11-25 16:59:48,193 INFO L413 NwaCegarLoop]: 1225 mSDtfsCounter, 702 mSDsluCounter, 503 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 702 SdHoareTripleChecker+Valid, 1728 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 16:59:48,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [702 Valid, 1728 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 16:59:48,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47533 states. [2022-11-25 17:00:28,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47533 to 45291. [2022-11-25 17:00:29,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45291 states, 45290 states have (on average 1.4009494369618016) internal successors, (63449), 45290 states have internal predecessors, (63449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:00:29,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45291 states to 45291 states and 63449 transitions. [2022-11-25 17:00:29,075 INFO L78 Accepts]: Start accepts. Automaton has 45291 states and 63449 transitions. Word has length 87 [2022-11-25 17:00:29,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:00:29,076 INFO L495 AbstractCegarLoop]: Abstraction has 45291 states and 63449 transitions. [2022-11-25 17:00:29,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 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) [2022-11-25 17:00:29,076 INFO L276 IsEmpty]: Start isEmpty. Operand 45291 states and 63449 transitions. [2022-11-25 17:00:29,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-11-25 17:00:29,079 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:00:29,079 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] [2022-11-25 17:00:29,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-11-25 17:00:29,080 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2022-11-25 17:00:29,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:00:29,080 INFO L85 PathProgramCache]: Analyzing trace with hash 614306871, now seen corresponding path program 1 times [2022-11-25 17:00:29,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:00:29,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111010799] [2022-11-25 17:00:29,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:00:29,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:00:29,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:00:29,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:00:29,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:00:29,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111010799] [2022-11-25 17:00:29,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111010799] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:00:29,401 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:00:29,401 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:00:29,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476758737] [2022-11-25 17:00:29,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:00:29,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:00:29,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:00:29,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:00:29,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:00:29,405 INFO L87 Difference]: Start difference. First operand 45291 states and 63449 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)