./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f8e1c903 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac26257-41b4-49aa-aaf0-25d1705e3862/bin/uautomizer-IVEQpCNsaX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac26257-41b4-49aa-aaf0-25d1705e3862/bin/uautomizer-IVEQpCNsaX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac26257-41b4-49aa-aaf0-25d1705e3862/bin/uautomizer-IVEQpCNsaX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac26257-41b4-49aa-aaf0-25d1705e3862/bin/uautomizer-IVEQpCNsaX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac26257-41b4-49aa-aaf0-25d1705e3862/bin/uautomizer-IVEQpCNsaX/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac26257-41b4-49aa-aaf0-25d1705e3862/bin/uautomizer-IVEQpCNsaX --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 8381803db0f296b6c475c94ca7dd8f9a2c79c383b82b37638a653c8556f3f15c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-f8e1c90 [2021-11-09 09:09:17,300 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-09 09:09:17,302 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-09 09:09:17,355 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-09 09:09:17,356 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-09 09:09:17,360 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-09 09:09:17,362 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-09 09:09:17,366 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-09 09:09:17,369 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-09 09:09:17,377 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-09 09:09:17,378 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-09 09:09:17,381 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-09 09:09:17,381 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-09 09:09:17,382 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-09 09:09:17,384 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-09 09:09:17,385 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-09 09:09:17,386 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-09 09:09:17,387 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-09 09:09:17,389 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-09 09:09:17,392 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-09 09:09:17,396 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-09 09:09:17,397 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-09 09:09:17,399 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-09 09:09:17,400 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-09 09:09:17,405 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-09 09:09:17,413 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-09 09:09:17,414 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-09 09:09:17,415 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-09 09:09:17,417 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-09 09:09:17,418 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-09 09:09:17,419 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-09 09:09:17,420 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-09 09:09:17,421 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-09 09:09:17,423 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-09 09:09:17,425 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-09 09:09:17,425 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-09 09:09:17,426 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-09 09:09:17,426 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-09 09:09:17,427 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-09 09:09:17,428 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-09 09:09:17,428 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-09 09:09:17,429 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac26257-41b4-49aa-aaf0-25d1705e3862/bin/uautomizer-IVEQpCNsaX/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-09 09:09:17,475 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-09 09:09:17,477 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-09 09:09:17,478 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-09 09:09:17,478 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-09 09:09:17,483 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-09 09:09:17,483 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-09 09:09:17,483 INFO L138 SettingsManager]: * Use SBE=true [2021-11-09 09:09:17,484 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-09 09:09:17,484 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-09 09:09:17,484 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-09 09:09:17,485 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-09 09:09:17,486 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-09 09:09:17,486 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-09 09:09:17,486 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-09 09:09:17,486 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-09 09:09:17,486 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-09 09:09:17,487 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-09 09:09:17,487 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-09 09:09:17,487 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-09 09:09:17,487 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-09 09:09:17,488 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-09 09:09:17,488 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-09 09:09:17,488 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 09:09:17,488 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-09 09:09:17,489 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-09 09:09:17,489 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-09 09:09:17,489 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-09 09:09:17,489 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-09 09:09:17,490 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-09 09:09:17,492 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-09 09:09:17,492 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-09 09:09:17,492 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-09 09:09:17,492 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac26257-41b4-49aa-aaf0-25d1705e3862/bin/uautomizer-IVEQpCNsaX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac26257-41b4-49aa-aaf0-25d1705e3862/bin/uautomizer-IVEQpCNsaX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8381803db0f296b6c475c94ca7dd8f9a2c79c383b82b37638a653c8556f3f15c [2021-11-09 09:09:17,764 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-09 09:09:17,796 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-09 09:09:17,798 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-09 09:09:17,800 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-09 09:09:17,802 INFO L275 PluginConnector]: CDTParser initialized [2021-11-09 09:09:17,803 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac26257-41b4-49aa-aaf0-25d1705e3862/bin/uautomizer-IVEQpCNsaX/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c [2021-11-09 09:09:17,889 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac26257-41b4-49aa-aaf0-25d1705e3862/bin/uautomizer-IVEQpCNsaX/data/6606dbb3b/1938a15ac8294831ba9addd9aba60d20/FLAG805ea45fa [2021-11-09 09:09:18,596 INFO L306 CDTParser]: Found 1 translation units. [2021-11-09 09:09:18,597 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac26257-41b4-49aa-aaf0-25d1705e3862/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c [2021-11-09 09:09:18,625 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac26257-41b4-49aa-aaf0-25d1705e3862/bin/uautomizer-IVEQpCNsaX/data/6606dbb3b/1938a15ac8294831ba9addd9aba60d20/FLAG805ea45fa [2021-11-09 09:09:18,728 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac26257-41b4-49aa-aaf0-25d1705e3862/bin/uautomizer-IVEQpCNsaX/data/6606dbb3b/1938a15ac8294831ba9addd9aba60d20 [2021-11-09 09:09:18,731 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-09 09:09:18,732 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-09 09:09:18,736 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-09 09:09:18,736 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-09 09:09:18,738 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-09 09:09:18,739 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 09:09:18" (1/1) ... [2021-11-09 09:09:18,740 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e8c4916 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:09:18, skipping insertion in model container [2021-11-09 09:09:18,740 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 09:09:18" (1/1) ... [2021-11-09 09:09:18,745 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-09 09:09:18,848 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-09 09:09:19,234 WARN L228 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_bac26257-41b4-49aa-aaf0-25d1705e3862/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[11561,11574] [2021-11-09 09:09:19,280 WARN L228 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_bac26257-41b4-49aa-aaf0-25d1705e3862/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[15618,15631] [2021-11-09 09:09:19,291 WARN L228 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_bac26257-41b4-49aa-aaf0-25d1705e3862/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[16839,16852] [2021-11-09 09:09:19,298 WARN L228 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_bac26257-41b4-49aa-aaf0-25d1705e3862/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[17545,17558] [2021-11-09 09:09:19,310 WARN L228 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_bac26257-41b4-49aa-aaf0-25d1705e3862/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[19131,19144] [2021-11-09 09:09:19,317 WARN L228 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_bac26257-41b4-49aa-aaf0-25d1705e3862/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[19837,19850] [2021-11-09 09:09:19,326 WARN L228 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_bac26257-41b4-49aa-aaf0-25d1705e3862/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[20908,20921] [2021-11-09 09:09:19,343 WARN L228 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_bac26257-41b4-49aa-aaf0-25d1705e3862/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[23398,23411] [2021-11-09 09:09:19,350 WARN L228 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_bac26257-41b4-49aa-aaf0-25d1705e3862/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[24107,24120] [2021-11-09 09:09:19,364 WARN L228 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_bac26257-41b4-49aa-aaf0-25d1705e3862/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[25144,25157] [2021-11-09 09:09:19,395 WARN L228 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_bac26257-41b4-49aa-aaf0-25d1705e3862/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[27082,27095] [2021-11-09 09:09:19,417 WARN L228 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_bac26257-41b4-49aa-aaf0-25d1705e3862/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[31116,31129] [2021-11-09 09:09:19,423 WARN L228 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_bac26257-41b4-49aa-aaf0-25d1705e3862/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[31825,31838] [2021-11-09 09:09:19,430 WARN L228 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_bac26257-41b4-49aa-aaf0-25d1705e3862/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[32899,32912] [2021-11-09 09:09:19,442 WARN L228 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_bac26257-41b4-49aa-aaf0-25d1705e3862/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[34874,34887] [2021-11-09 09:09:19,471 WARN L228 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_bac26257-41b4-49aa-aaf0-25d1705e3862/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[38255,38268] [2021-11-09 09:09:19,723 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 09:09:19,737 INFO L203 MainTranslator]: Completed pre-run [2021-11-09 09:09:19,852 WARN L228 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_bac26257-41b4-49aa-aaf0-25d1705e3862/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[11561,11574] [2021-11-09 09:09:19,884 WARN L228 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_bac26257-41b4-49aa-aaf0-25d1705e3862/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[15618,15631] [2021-11-09 09:09:19,898 WARN L228 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_bac26257-41b4-49aa-aaf0-25d1705e3862/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[16839,16852] [2021-11-09 09:09:19,907 WARN L228 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_bac26257-41b4-49aa-aaf0-25d1705e3862/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[17545,17558] [2021-11-09 09:09:19,923 WARN L228 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_bac26257-41b4-49aa-aaf0-25d1705e3862/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[19131,19144] [2021-11-09 09:09:19,932 WARN L228 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_bac26257-41b4-49aa-aaf0-25d1705e3862/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[19837,19850] [2021-11-09 09:09:19,959 WARN L228 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_bac26257-41b4-49aa-aaf0-25d1705e3862/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[20908,20921] [2021-11-09 09:09:19,987 WARN L228 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_bac26257-41b4-49aa-aaf0-25d1705e3862/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[23398,23411] [2021-11-09 09:09:19,996 WARN L228 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_bac26257-41b4-49aa-aaf0-25d1705e3862/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[24107,24120] [2021-11-09 09:09:20,020 WARN L228 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_bac26257-41b4-49aa-aaf0-25d1705e3862/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[25144,25157] [2021-11-09 09:09:20,041 WARN L228 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_bac26257-41b4-49aa-aaf0-25d1705e3862/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[27082,27095] [2021-11-09 09:09:20,087 WARN L228 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_bac26257-41b4-49aa-aaf0-25d1705e3862/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[31116,31129] [2021-11-09 09:09:20,098 WARN L228 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_bac26257-41b4-49aa-aaf0-25d1705e3862/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[31825,31838] [2021-11-09 09:09:20,105 WARN L228 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_bac26257-41b4-49aa-aaf0-25d1705e3862/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[32899,32912] [2021-11-09 09:09:20,114 WARN L228 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_bac26257-41b4-49aa-aaf0-25d1705e3862/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[34874,34887] [2021-11-09 09:09:20,128 WARN L228 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_bac26257-41b4-49aa-aaf0-25d1705e3862/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c[38255,38268] [2021-11-09 09:09:20,264 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 09:09:20,284 INFO L208 MainTranslator]: Completed translation [2021-11-09 09:09:20,285 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:09:20 WrapperNode [2021-11-09 09:09:20,285 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-09 09:09:20,288 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-09 09:09:20,289 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-09 09:09:20,289 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-09 09:09:20,296 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:09:20" (1/1) ... [2021-11-09 09:09:20,352 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:09:20" (1/1) ... [2021-11-09 09:09:20,448 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-09 09:09:20,449 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-09 09:09:20,449 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-09 09:09:20,449 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-09 09:09:20,458 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:09:20" (1/1) ... [2021-11-09 09:09:20,458 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:09:20" (1/1) ... [2021-11-09 09:09:20,469 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:09:20" (1/1) ... [2021-11-09 09:09:20,469 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:09:20" (1/1) ... [2021-11-09 09:09:20,527 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:09:20" (1/1) ... [2021-11-09 09:09:20,567 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:09:20" (1/1) ... [2021-11-09 09:09:20,575 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:09:20" (1/1) ... [2021-11-09 09:09:20,598 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-09 09:09:20,603 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-09 09:09:20,603 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-09 09:09:20,603 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-09 09:09:20,605 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:09:20" (1/1) ... [2021-11-09 09:09:20,612 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 09:09:20,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac26257-41b4-49aa-aaf0-25d1705e3862/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:09:20,641 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac26257-41b4-49aa-aaf0-25d1705e3862/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-09 09:09:20,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bac26257-41b4-49aa-aaf0-25d1705e3862/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-09 09:09:20,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-09 09:09:20,689 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-09 09:09:20,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-09 09:09:20,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-09 09:09:22,870 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-09 09:09:22,871 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-11-09 09:09:22,874 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 09:09:22 BoogieIcfgContainer [2021-11-09 09:09:22,874 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-09 09:09:22,877 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-09 09:09:22,877 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-09 09:09:22,881 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-09 09:09:22,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 09:09:18" (1/3) ... [2021-11-09 09:09:22,883 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28f97855 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 09:09:22, skipping insertion in model container [2021-11-09 09:09:22,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:09:20" (2/3) ... [2021-11-09 09:09:22,883 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28f97855 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 09:09:22, skipping insertion in model container [2021-11-09 09:09:22,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 09:09:22" (3/3) ... [2021-11-09 09:09:22,885 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.ufo.BOUNDED-10.pals.c.v+lhb-reducer.c [2021-11-09 09:09:22,894 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-09 09:09:22,894 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2021-11-09 09:09:22,966 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-09 09:09:22,972 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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, mLoopAccelerationTechnique=FAST_UPR [2021-11-09 09:09:22,972 INFO L340 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2021-11-09 09:09:23,005 INFO L276 IsEmpty]: Start isEmpty. Operand has 629 states, 612 states have (on average 1.8480392156862746) internal successors, (1131), 628 states have internal predecessors, (1131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:09:23,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-09 09:09:23,023 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:09:23,024 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:09:23,025 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-09 09:09:23,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:09:23,030 INFO L85 PathProgramCache]: Analyzing trace with hash -729096350, now seen corresponding path program 1 times [2021-11-09 09:09:23,039 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:09:23,040 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547804295] [2021-11-09 09:09:23,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:09:23,041 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:09:23,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:09:23,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:09:23,537 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:09:23,538 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547804295] [2021-11-09 09:09:23,539 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547804295] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:09:23,539 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:09:23,539 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-09 09:09:23,541 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87818080] [2021-11-09 09:09:23,546 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-09 09:09:23,546 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:09:23,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-09 09:09:23,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-09 09:09:23,564 INFO L87 Difference]: Start difference. First operand has 629 states, 612 states have (on average 1.8480392156862746) internal successors, (1131), 628 states have internal predecessors, (1131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:09:24,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:09:24,237 INFO L93 Difference]: Finished difference Result 976 states and 1692 transitions. [2021-11-09 09:09:24,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-09 09:09:24,239 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2021-11-09 09:09:24,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:09:24,255 INFO L225 Difference]: With dead ends: 976 [2021-11-09 09:09:24,255 INFO L226 Difference]: Without dead ends: 546 [2021-11-09 09:09:24,260 INFO L786 BasicCegarLoop]: 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 [2021-11-09 09:09:24,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 546 states. [2021-11-09 09:09:24,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 546 to 546. [2021-11-09 09:09:24,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 546 states, 530 states have (on average 1.2811320754716982) internal successors, (679), 545 states have internal predecessors, (679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:09:24,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 679 transitions. [2021-11-09 09:09:24,343 INFO L78 Accepts]: Start accepts. Automaton has 546 states and 679 transitions. Word has length 72 [2021-11-09 09:09:24,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:09:24,344 INFO L470 AbstractCegarLoop]: Abstraction has 546 states and 679 transitions. [2021-11-09 09:09:24,344 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:09:24,344 INFO L276 IsEmpty]: Start isEmpty. Operand 546 states and 679 transitions. [2021-11-09 09:09:24,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-09 09:09:24,347 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:09:24,348 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:09:24,348 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-09 09:09:24,348 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-09 09:09:24,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:09:24,349 INFO L85 PathProgramCache]: Analyzing trace with hash -42769193, now seen corresponding path program 1 times [2021-11-09 09:09:24,350 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:09:24,350 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452358488] [2021-11-09 09:09:24,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:09:24,350 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:09:24,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:09:24,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:09:24,484 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:09:24,484 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452358488] [2021-11-09 09:09:24,484 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452358488] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:09:24,485 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:09:24,485 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-09 09:09:24,485 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472387832] [2021-11-09 09:09:24,486 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-09 09:09:24,487 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:09:24,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-09 09:09:24,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-09 09:09:24,488 INFO L87 Difference]: Start difference. First operand 546 states and 679 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:09:24,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:09:24,861 INFO L93 Difference]: Finished difference Result 884 states and 1135 transitions. [2021-11-09 09:09:24,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-09 09:09:24,864 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2021-11-09 09:09:24,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:09:24,870 INFO L225 Difference]: With dead ends: 884 [2021-11-09 09:09:24,871 INFO L226 Difference]: Without dead ends: 470 [2021-11-09 09:09:24,877 INFO L786 BasicCegarLoop]: 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 [2021-11-09 09:09:24,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2021-11-09 09:09:24,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 470. [2021-11-09 09:09:24,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 470 states, 454 states have (on average 1.3083700440528634) internal successors, (594), 469 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:09:24,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 594 transitions. [2021-11-09 09:09:24,917 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 594 transitions. Word has length 73 [2021-11-09 09:09:24,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:09:24,918 INFO L470 AbstractCegarLoop]: Abstraction has 470 states and 594 transitions. [2021-11-09 09:09:24,918 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:09:24,918 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 594 transitions. [2021-11-09 09:09:24,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-09 09:09:24,920 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:09:24,920 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:09:24,921 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-09 09:09:24,921 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-09 09:09:24,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:09:24,922 INFO L85 PathProgramCache]: Analyzing trace with hash -1935205239, now seen corresponding path program 1 times [2021-11-09 09:09:24,922 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:09:24,924 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575998801] [2021-11-09 09:09:24,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:09:24,929 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:09:24,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:09:25,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:09:25,061 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:09:25,061 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575998801] [2021-11-09 09:09:25,061 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575998801] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:09:25,061 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:09:25,062 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-09 09:09:25,062 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84382623] [2021-11-09 09:09:25,062 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-09 09:09:25,063 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:09:25,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-09 09:09:25,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-09 09:09:25,064 INFO L87 Difference]: Start difference. First operand 470 states and 594 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:09:25,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:09:25,379 INFO L93 Difference]: Finished difference Result 808 states and 1049 transitions. [2021-11-09 09:09:25,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-09 09:09:25,379 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2021-11-09 09:09:25,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:09:25,385 INFO L225 Difference]: With dead ends: 808 [2021-11-09 09:09:25,385 INFO L226 Difference]: Without dead ends: 423 [2021-11-09 09:09:25,386 INFO L786 BasicCegarLoop]: 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 [2021-11-09 09:09:25,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2021-11-09 09:09:25,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 423. [2021-11-09 09:09:25,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 407 states have (on average 1.3316953316953317) internal successors, (542), 422 states have internal predecessors, (542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:09:25,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 542 transitions. [2021-11-09 09:09:25,412 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 542 transitions. Word has length 74 [2021-11-09 09:09:25,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:09:25,413 INFO L470 AbstractCegarLoop]: Abstraction has 423 states and 542 transitions. [2021-11-09 09:09:25,413 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:09:25,413 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 542 transitions. [2021-11-09 09:09:25,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-09 09:09:25,415 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:09:25,416 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:09:25,416 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-09 09:09:25,416 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-09 09:09:25,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:09:25,417 INFO L85 PathProgramCache]: Analyzing trace with hash -1705169018, now seen corresponding path program 1 times [2021-11-09 09:09:25,418 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:09:25,418 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011725179] [2021-11-09 09:09:25,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:09:25,418 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:09:25,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:09:25,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:09:25,589 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:09:25,589 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011725179] [2021-11-09 09:09:25,589 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011725179] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:09:25,589 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:09:25,590 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-09 09:09:25,590 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570459613] [2021-11-09 09:09:25,591 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-09 09:09:25,592 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:09:25,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-09 09:09:25,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-09 09:09:25,593 INFO L87 Difference]: Start difference. First operand 423 states and 542 transitions. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 5 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) [2021-11-09 09:09:26,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:09:26,031 INFO L93 Difference]: Finished difference Result 970 states and 1274 transitions. [2021-11-09 09:09:26,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-09 09:09:26,032 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 5 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 [2021-11-09 09:09:26,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:09:26,036 INFO L225 Difference]: With dead ends: 970 [2021-11-09 09:09:26,037 INFO L226 Difference]: Without dead ends: 610 [2021-11-09 09:09:26,038 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2021-11-09 09:09:26,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states. [2021-11-09 09:09:26,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 566. [2021-11-09 09:09:26,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566 states, 550 states have (on average 1.3854545454545455) internal successors, (762), 565 states have internal predecessors, (762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:09:26,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 762 transitions. [2021-11-09 09:09:26,077 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 762 transitions. Word has length 75 [2021-11-09 09:09:26,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:09:26,079 INFO L470 AbstractCegarLoop]: Abstraction has 566 states and 762 transitions. [2021-11-09 09:09:26,079 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 5 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) [2021-11-09 09:09:26,079 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 762 transitions. [2021-11-09 09:09:26,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-09 09:09:26,081 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:09:26,081 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:09:26,081 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-09 09:09:26,082 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-09 09:09:26,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:09:26,083 INFO L85 PathProgramCache]: Analyzing trace with hash 1213069626, now seen corresponding path program 1 times [2021-11-09 09:09:26,083 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:09:26,084 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229100875] [2021-11-09 09:09:26,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:09:26,085 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:09:26,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:09:26,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:09:26,236 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:09:26,236 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229100875] [2021-11-09 09:09:26,236 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229100875] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:09:26,237 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:09:26,237 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-09 09:09:26,237 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785683414] [2021-11-09 09:09:26,238 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-09 09:09:26,238 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:09:26,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-09 09:09:26,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-09 09:09:26,239 INFO L87 Difference]: Start difference. First operand 566 states and 762 transitions. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 5 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:09:26,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:09:26,637 INFO L93 Difference]: Finished difference Result 1355 states and 1839 transitions. [2021-11-09 09:09:26,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-09 09:09:26,639 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 5 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2021-11-09 09:09:26,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:09:26,645 INFO L225 Difference]: With dead ends: 1355 [2021-11-09 09:09:26,649 INFO L226 Difference]: Without dead ends: 844 [2021-11-09 09:09:26,655 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2021-11-09 09:09:26,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 844 states. [2021-11-09 09:09:26,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 844 to 784. [2021-11-09 09:09:26,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 784 states, 768 states have (on average 1.4036458333333333) internal successors, (1078), 783 states have internal predecessors, (1078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:09:26,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 784 states to 784 states and 1078 transitions. [2021-11-09 09:09:26,724 INFO L78 Accepts]: Start accepts. Automaton has 784 states and 1078 transitions. Word has length 76 [2021-11-09 09:09:26,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:09:26,725 INFO L470 AbstractCegarLoop]: Abstraction has 784 states and 1078 transitions. [2021-11-09 09:09:26,727 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 5 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:09:26,728 INFO L276 IsEmpty]: Start isEmpty. Operand 784 states and 1078 transitions. [2021-11-09 09:09:26,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-09 09:09:26,730 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:09:26,730 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:09:26,731 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-09 09:09:26,731 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-09 09:09:26,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:09:26,731 INFO L85 PathProgramCache]: Analyzing trace with hash -142744767, now seen corresponding path program 1 times [2021-11-09 09:09:26,732 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:09:26,732 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774560326] [2021-11-09 09:09:26,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:09:26,732 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:09:26,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:09:26,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:09:26,977 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:09:26,977 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774560326] [2021-11-09 09:09:26,978 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774560326] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:09:26,978 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:09:26,978 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-09 09:09:26,978 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167025740] [2021-11-09 09:09:26,979 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-09 09:09:26,979 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:09:26,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-09 09:09:26,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-09 09:09:26,980 INFO L87 Difference]: Start difference. First operand 784 states and 1078 transitions. Second operand has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 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) [2021-11-09 09:09:28,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:09:28,200 INFO L93 Difference]: Finished difference Result 1620 states and 2283 transitions. [2021-11-09 09:09:28,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-09 09:09:28,201 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 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 [2021-11-09 09:09:28,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:09:28,210 INFO L225 Difference]: With dead ends: 1620 [2021-11-09 09:09:28,210 INFO L226 Difference]: Without dead ends: 1338 [2021-11-09 09:09:28,212 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2021-11-09 09:09:28,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1338 states. [2021-11-09 09:09:28,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1338 to 784. [2021-11-09 09:09:28,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 784 states, 768 states have (on average 1.40234375) internal successors, (1077), 783 states have internal predecessors, (1077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:09:28,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 784 states to 784 states and 1077 transitions. [2021-11-09 09:09:28,307 INFO L78 Accepts]: Start accepts. Automaton has 784 states and 1077 transitions. Word has length 77 [2021-11-09 09:09:28,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:09:28,309 INFO L470 AbstractCegarLoop]: Abstraction has 784 states and 1077 transitions. [2021-11-09 09:09:28,312 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 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) [2021-11-09 09:09:28,313 INFO L276 IsEmpty]: Start isEmpty. Operand 784 states and 1077 transitions. [2021-11-09 09:09:28,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-09 09:09:28,314 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:09:28,315 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:09:28,315 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-09 09:09:28,315 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-09 09:09:28,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:09:28,316 INFO L85 PathProgramCache]: Analyzing trace with hash -2022253705, now seen corresponding path program 1 times [2021-11-09 09:09:28,316 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:09:28,316 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785558441] [2021-11-09 09:09:28,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:09:28,317 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:09:28,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:09:28,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:09:28,520 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:09:28,520 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785558441] [2021-11-09 09:09:28,520 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785558441] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:09:28,521 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:09:28,521 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-09 09:09:28,521 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067509519] [2021-11-09 09:09:28,521 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-09 09:09:28,522 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:09:28,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-09 09:09:28,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-11-09 09:09:28,523 INFO L87 Difference]: Start difference. First operand 784 states and 1077 transitions. Second operand has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 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) [2021-11-09 09:09:29,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:09:29,686 INFO L93 Difference]: Finished difference Result 2133 states and 3025 transitions. [2021-11-09 09:09:29,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-09 09:09:29,687 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 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 [2021-11-09 09:09:29,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:09:29,698 INFO L225 Difference]: With dead ends: 2133 [2021-11-09 09:09:29,698 INFO L226 Difference]: Without dead ends: 1800 [2021-11-09 09:09:29,700 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2021-11-09 09:09:29,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1800 states. [2021-11-09 09:09:29,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1800 to 784. [2021-11-09 09:09:29,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 784 states, 768 states have (on average 1.4010416666666667) internal successors, (1076), 783 states have internal predecessors, (1076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:09:29,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 784 states to 784 states and 1076 transitions. [2021-11-09 09:09:29,815 INFO L78 Accepts]: Start accepts. Automaton has 784 states and 1076 transitions. Word has length 77 [2021-11-09 09:09:29,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:09:29,815 INFO L470 AbstractCegarLoop]: Abstraction has 784 states and 1076 transitions. [2021-11-09 09:09:29,815 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 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) [2021-11-09 09:09:29,816 INFO L276 IsEmpty]: Start isEmpty. Operand 784 states and 1076 transitions. [2021-11-09 09:09:29,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-09 09:09:29,817 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:09:29,817 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:09:29,818 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-09 09:09:29,818 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-09 09:09:29,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:09:29,818 INFO L85 PathProgramCache]: Analyzing trace with hash 679839246, now seen corresponding path program 1 times [2021-11-09 09:09:29,819 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:09:29,819 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935000134] [2021-11-09 09:09:29,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:09:29,819 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:09:29,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:09:29,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:09:29,986 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:09:29,986 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935000134] [2021-11-09 09:09:29,987 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935000134] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:09:29,987 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:09:29,987 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-09 09:09:29,987 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367525054] [2021-11-09 09:09:29,988 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-09 09:09:29,988 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:09:29,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-09 09:09:29,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-11-09 09:09:29,989 INFO L87 Difference]: Start difference. First operand 784 states and 1076 transitions. Second operand has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 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) [2021-11-09 09:09:31,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:09:31,176 INFO L93 Difference]: Finished difference Result 2150 states and 3038 transitions. [2021-11-09 09:09:31,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-09 09:09:31,177 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 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 [2021-11-09 09:09:31,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:09:31,187 INFO L225 Difference]: With dead ends: 2150 [2021-11-09 09:09:31,188 INFO L226 Difference]: Without dead ends: 1800 [2021-11-09 09:09:31,189 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2021-11-09 09:09:31,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1800 states. [2021-11-09 09:09:31,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1800 to 784. [2021-11-09 09:09:31,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 784 states, 768 states have (on average 1.3997395833333333) internal successors, (1075), 783 states have internal predecessors, (1075), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:09:31,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 784 states to 784 states and 1075 transitions. [2021-11-09 09:09:31,271 INFO L78 Accepts]: Start accepts. Automaton has 784 states and 1075 transitions. Word has length 77 [2021-11-09 09:09:31,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:09:31,272 INFO L470 AbstractCegarLoop]: Abstraction has 784 states and 1075 transitions. [2021-11-09 09:09:31,272 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 8 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) [2021-11-09 09:09:31,272 INFO L276 IsEmpty]: Start isEmpty. Operand 784 states and 1075 transitions. [2021-11-09 09:09:31,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-09 09:09:31,274 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:09:31,274 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:09:31,274 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-09 09:09:31,274 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-09 09:09:31,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:09:31,275 INFO L85 PathProgramCache]: Analyzing trace with hash 100403402, now seen corresponding path program 1 times [2021-11-09 09:09:31,275 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:09:31,275 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057273552] [2021-11-09 09:09:31,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:09:31,276 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:09:31,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:09:31,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:09:31,412 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:09:31,412 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057273552] [2021-11-09 09:09:31,412 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057273552] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:09:31,412 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:09:31,413 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-09 09:09:31,413 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845562204] [2021-11-09 09:09:31,413 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-09 09:09:31,413 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:09:31,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-09 09:09:31,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-09 09:09:31,415 INFO L87 Difference]: Start difference. First operand 784 states and 1075 transitions. Second operand has 8 states, 8 states have (on average 9.625) internal successors, (77), 7 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) [2021-11-09 09:09:32,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:09:32,159 INFO L93 Difference]: Finished difference Result 1669 states and 2282 transitions. [2021-11-09 09:09:32,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-09 09:09:32,160 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 7 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 [2021-11-09 09:09:32,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:09:32,167 INFO L225 Difference]: With dead ends: 1669 [2021-11-09 09:09:32,167 INFO L226 Difference]: Without dead ends: 1170 [2021-11-09 09:09:32,169 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2021-11-09 09:09:32,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1170 states. [2021-11-09 09:09:32,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1170 to 784. [2021-11-09 09:09:32,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 784 states, 768 states have (on average 1.3984375) internal successors, (1074), 783 states have internal predecessors, (1074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:09:32,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 784 states to 784 states and 1074 transitions. [2021-11-09 09:09:32,268 INFO L78 Accepts]: Start accepts. Automaton has 784 states and 1074 transitions. Word has length 77 [2021-11-09 09:09:32,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:09:32,268 INFO L470 AbstractCegarLoop]: Abstraction has 784 states and 1074 transitions. [2021-11-09 09:09:32,269 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 7 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) [2021-11-09 09:09:32,269 INFO L276 IsEmpty]: Start isEmpty. Operand 784 states and 1074 transitions. [2021-11-09 09:09:32,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-09 09:09:32,270 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:09:32,271 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:09:32,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-09 09:09:32,272 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-09 09:09:32,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:09:32,273 INFO L85 PathProgramCache]: Analyzing trace with hash -204100811, now seen corresponding path program 1 times [2021-11-09 09:09:32,273 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:09:32,273 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389358332] [2021-11-09 09:09:32,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:09:32,273 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:09:32,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:09:32,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:09:32,523 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:09:32,524 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389358332] [2021-11-09 09:09:32,524 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389358332] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:09:32,524 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:09:32,524 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-09 09:09:32,524 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699586046] [2021-11-09 09:09:32,525 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-09 09:09:32,525 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:09:32,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-09 09:09:32,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-11-09 09:09:32,526 INFO L87 Difference]: Start difference. First operand 784 states and 1074 transitions. Second operand has 12 states, 12 states have (on average 6.583333333333333) internal successors, (79), 11 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:09:35,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:09:35,266 INFO L93 Difference]: Finished difference Result 2722 states and 3870 transitions. [2021-11-09 09:09:35,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-09 09:09:35,267 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.583333333333333) internal successors, (79), 11 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2021-11-09 09:09:35,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:09:35,281 INFO L225 Difference]: With dead ends: 2722 [2021-11-09 09:09:35,281 INFO L226 Difference]: Without dead ends: 2430 [2021-11-09 09:09:35,283 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 269 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=300, Invalid=822, Unknown=0, NotChecked=0, Total=1122 [2021-11-09 09:09:35,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2430 states. [2021-11-09 09:09:35,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2430 to 784. [2021-11-09 09:09:35,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 784 states, 768 states have (on average 1.3971354166666667) internal successors, (1073), 783 states have internal predecessors, (1073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:09:35,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 784 states to 784 states and 1073 transitions. [2021-11-09 09:09:35,399 INFO L78 Accepts]: Start accepts. Automaton has 784 states and 1073 transitions. Word has length 79 [2021-11-09 09:09:35,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:09:35,400 INFO L470 AbstractCegarLoop]: Abstraction has 784 states and 1073 transitions. [2021-11-09 09:09:35,400 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.583333333333333) internal successors, (79), 11 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:09:35,400 INFO L276 IsEmpty]: Start isEmpty. Operand 784 states and 1073 transitions. [2021-11-09 09:09:35,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-09 09:09:35,402 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:09:35,402 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:09:35,403 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-09 09:09:35,403 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-09 09:09:35,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:09:35,404 INFO L85 PathProgramCache]: Analyzing trace with hash -612946039, now seen corresponding path program 1 times [2021-11-09 09:09:35,404 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:09:35,404 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175787861] [2021-11-09 09:09:35,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:09:35,404 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:09:35,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:09:35,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:09:35,564 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:09:35,565 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175787861] [2021-11-09 09:09:35,565 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175787861] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:09:35,565 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:09:35,565 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-09 09:09:35,565 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704165568] [2021-11-09 09:09:35,566 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-09 09:09:35,566 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:09:35,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-09 09:09:35,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-09 09:09:35,567 INFO L87 Difference]: Start difference. First operand 784 states and 1073 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:09:36,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:09:36,666 INFO L93 Difference]: Finished difference Result 2056 states and 2911 transitions. [2021-11-09 09:09:36,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-09 09:09:36,666 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2021-11-09 09:09:36,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:09:36,676 INFO L225 Difference]: With dead ends: 2056 [2021-11-09 09:09:36,677 INFO L226 Difference]: Without dead ends: 1784 [2021-11-09 09:09:36,678 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-11-09 09:09:36,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1784 states. [2021-11-09 09:09:36,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1784 to 784. [2021-11-09 09:09:36,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 784 states, 768 states have (on average 1.39453125) internal successors, (1071), 783 states have internal predecessors, (1071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:09:36,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 784 states to 784 states and 1071 transitions. [2021-11-09 09:09:36,786 INFO L78 Accepts]: Start accepts. Automaton has 784 states and 1071 transitions. Word has length 79 [2021-11-09 09:09:36,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:09:36,786 INFO L470 AbstractCegarLoop]: Abstraction has 784 states and 1071 transitions. [2021-11-09 09:09:36,786 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:09:36,787 INFO L276 IsEmpty]: Start isEmpty. Operand 784 states and 1071 transitions. [2021-11-09 09:09:36,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-09 09:09:36,788 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:09:36,788 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:09:36,789 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-09 09:09:36,789 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-09 09:09:36,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:09:36,789 INFO L85 PathProgramCache]: Analyzing trace with hash -244843864, now seen corresponding path program 1 times [2021-11-09 09:09:36,790 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:09:36,790 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602689529] [2021-11-09 09:09:36,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:09:36,790 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:09:36,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:09:37,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:09:37,008 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:09:37,008 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602689529] [2021-11-09 09:09:37,008 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602689529] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:09:37,009 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:09:37,009 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-09 09:09:37,009 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942246230] [2021-11-09 09:09:37,009 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-09 09:09:37,009 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:09:37,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-09 09:09:37,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-09 09:09:37,010 INFO L87 Difference]: Start difference. First operand 784 states and 1071 transitions. Second operand has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 10 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:09:39,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:09:39,633 INFO L93 Difference]: Finished difference Result 3674 states and 5272 transitions. [2021-11-09 09:09:39,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-09 09:09:39,633 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 10 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2021-11-09 09:09:39,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:09:39,653 INFO L225 Difference]: With dead ends: 3674 [2021-11-09 09:09:39,653 INFO L226 Difference]: Without dead ends: 3412 [2021-11-09 09:09:39,655 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2021-11-09 09:09:39,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3412 states. [2021-11-09 09:09:39,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3412 to 788. [2021-11-09 09:09:39,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 788 states, 772 states have (on average 1.3924870466321244) internal successors, (1075), 787 states have internal predecessors, (1075), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:09:39,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 788 states to 788 states and 1075 transitions. [2021-11-09 09:09:39,829 INFO L78 Accepts]: Start accepts. Automaton has 788 states and 1075 transitions. Word has length 79 [2021-11-09 09:09:39,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:09:39,829 INFO L470 AbstractCegarLoop]: Abstraction has 788 states and 1075 transitions. [2021-11-09 09:09:39,830 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.181818181818182) internal successors, (79), 10 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:09:39,830 INFO L276 IsEmpty]: Start isEmpty. Operand 788 states and 1075 transitions. [2021-11-09 09:09:39,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-09 09:09:39,832 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:09:39,832 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:09:39,832 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-09 09:09:39,832 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-09 09:09:39,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:09:39,833 INFO L85 PathProgramCache]: Analyzing trace with hash 391973260, now seen corresponding path program 1 times [2021-11-09 09:09:39,833 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:09:39,833 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932399445] [2021-11-09 09:09:39,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:09:39,834 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:09:39,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:09:39,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:09:39,969 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:09:39,969 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932399445] [2021-11-09 09:09:39,970 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932399445] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:09:39,970 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:09:39,970 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-09 09:09:39,970 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597654048] [2021-11-09 09:09:39,970 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-09 09:09:39,971 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:09:39,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-09 09:09:39,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-09 09:09:39,972 INFO L87 Difference]: Start difference. First operand 788 states and 1075 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:09:41,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:09:41,211 INFO L93 Difference]: Finished difference Result 2042 states and 2890 transitions. [2021-11-09 09:09:41,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-09 09:09:41,211 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2021-11-09 09:09:41,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:09:41,220 INFO L225 Difference]: With dead ends: 2042 [2021-11-09 09:09:41,220 INFO L226 Difference]: Without dead ends: 1784 [2021-11-09 09:09:41,222 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-11-09 09:09:41,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1784 states. [2021-11-09 09:09:41,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1784 to 788. [2021-11-09 09:09:41,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 788 states, 772 states have (on average 1.3911917098445596) internal successors, (1074), 787 states have internal predecessors, (1074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:09:41,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 788 states to 788 states and 1074 transitions. [2021-11-09 09:09:41,357 INFO L78 Accepts]: Start accepts. Automaton has 788 states and 1074 transitions. Word has length 79 [2021-11-09 09:09:41,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:09:41,358 INFO L470 AbstractCegarLoop]: Abstraction has 788 states and 1074 transitions. [2021-11-09 09:09:41,358 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:09:41,358 INFO L276 IsEmpty]: Start isEmpty. Operand 788 states and 1074 transitions. [2021-11-09 09:09:41,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-09 09:09:41,360 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:09:41,360 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:09:41,361 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-09 09:09:41,361 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-09 09:09:41,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:09:41,361 INFO L85 PathProgramCache]: Analyzing trace with hash 1207195179, now seen corresponding path program 1 times [2021-11-09 09:09:41,362 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:09:41,362 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041621618] [2021-11-09 09:09:41,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:09:41,362 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:09:41,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:09:41,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:09:41,511 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:09:41,512 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041621618] [2021-11-09 09:09:41,512 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041621618] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:09:41,512 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:09:41,512 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-09 09:09:41,512 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452930768] [2021-11-09 09:09:41,513 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-09 09:09:41,513 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:09:41,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-09 09:09:41,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-09 09:09:41,514 INFO L87 Difference]: Start difference. First operand 788 states and 1074 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:09:42,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:09:42,550 INFO L93 Difference]: Finished difference Result 2046 states and 2892 transitions. [2021-11-09 09:09:42,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-09 09:09:42,551 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2021-11-09 09:09:42,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:09:42,559 INFO L225 Difference]: With dead ends: 2046 [2021-11-09 09:09:42,560 INFO L226 Difference]: Without dead ends: 1784 [2021-11-09 09:09:42,561 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-11-09 09:09:42,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1784 states. [2021-11-09 09:09:42,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1784 to 788. [2021-11-09 09:09:42,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 788 states, 772 states have (on average 1.3898963730569949) internal successors, (1073), 787 states have internal predecessors, (1073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:09:42,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 788 states to 788 states and 1073 transitions. [2021-11-09 09:09:42,690 INFO L78 Accepts]: Start accepts. Automaton has 788 states and 1073 transitions. Word has length 79 [2021-11-09 09:09:42,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:09:42,690 INFO L470 AbstractCegarLoop]: Abstraction has 788 states and 1073 transitions. [2021-11-09 09:09:42,690 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:09:42,691 INFO L276 IsEmpty]: Start isEmpty. Operand 788 states and 1073 transitions. [2021-11-09 09:09:42,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-09 09:09:42,693 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:09:42,693 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:09:42,693 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-09 09:09:42,693 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-09 09:09:42,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:09:42,694 INFO L85 PathProgramCache]: Analyzing trace with hash 1616040407, now seen corresponding path program 1 times [2021-11-09 09:09:42,694 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:09:42,694 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132609586] [2021-11-09 09:09:42,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:09:42,695 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:09:42,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:09:42,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:09:42,833 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:09:42,834 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132609586] [2021-11-09 09:09:42,834 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132609586] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:09:42,834 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:09:42,834 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-09 09:09:42,834 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111925674] [2021-11-09 09:09:42,835 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-09 09:09:42,835 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:09:42,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-09 09:09:42,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-09 09:09:42,836 INFO L87 Difference]: Start difference. First operand 788 states and 1073 transitions. Second operand has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:09:43,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:09:43,907 INFO L93 Difference]: Finished difference Result 1626 states and 2275 transitions. [2021-11-09 09:09:43,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-09 09:09:43,907 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2021-11-09 09:09:43,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:09:43,912 INFO L225 Difference]: With dead ends: 1626 [2021-11-09 09:09:43,912 INFO L226 Difference]: Without dead ends: 1342 [2021-11-09 09:09:43,914 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2021-11-09 09:09:43,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1342 states. [2021-11-09 09:09:44,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1342 to 788. [2021-11-09 09:09:44,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 788 states, 772 states have (on average 1.38860103626943) internal successors, (1072), 787 states have internal predecessors, (1072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:09:44,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 788 states to 788 states and 1072 transitions. [2021-11-09 09:09:44,033 INFO L78 Accepts]: Start accepts. Automaton has 788 states and 1072 transitions. Word has length 79 [2021-11-09 09:09:44,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:09:44,033 INFO L470 AbstractCegarLoop]: Abstraction has 788 states and 1072 transitions. [2021-11-09 09:09:44,033 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.777777777777779) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:09:44,034 INFO L276 IsEmpty]: Start isEmpty. Operand 788 states and 1072 transitions. [2021-11-09 09:09:44,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-09 09:09:44,035 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:09:44,036 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:09:44,036 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-09 09:09:44,036 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-09 09:09:44,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:09:44,037 INFO L85 PathProgramCache]: Analyzing trace with hash -1975429315, now seen corresponding path program 1 times [2021-11-09 09:09:44,037 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:09:44,037 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126745223] [2021-11-09 09:09:44,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:09:44,037 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:09:44,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:09:44,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:09:44,175 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:09:44,175 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126745223] [2021-11-09 09:09:44,175 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126745223] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:09:44,175 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:09:44,175 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-09 09:09:44,176 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099217962] [2021-11-09 09:09:44,176 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-09 09:09:44,176 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:09:44,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-09 09:09:44,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-09 09:09:44,177 INFO L87 Difference]: Start difference. First operand 788 states and 1072 transitions. Second operand has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:09:45,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:09:45,481 INFO L93 Difference]: Finished difference Result 1634 states and 2288 transitions. [2021-11-09 09:09:45,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-09 09:09:45,481 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2021-11-09 09:09:45,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:09:45,486 INFO L225 Difference]: With dead ends: 1634 [2021-11-09 09:09:45,486 INFO L226 Difference]: Without dead ends: 1342 [2021-11-09 09:09:45,487 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2021-11-09 09:09:45,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1342 states. [2021-11-09 09:09:45,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1342 to 788. [2021-11-09 09:09:45,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 788 states, 772 states have (on average 1.3873056994818653) internal successors, (1071), 787 states have internal predecessors, (1071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:09:45,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 788 states to 788 states and 1071 transitions. [2021-11-09 09:09:45,603 INFO L78 Accepts]: Start accepts. Automaton has 788 states and 1071 transitions. Word has length 80 [2021-11-09 09:09:45,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:09:45,603 INFO L470 AbstractCegarLoop]: Abstraction has 788 states and 1071 transitions. [2021-11-09 09:09:45,603 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:09:45,603 INFO L276 IsEmpty]: Start isEmpty. Operand 788 states and 1071 transitions. [2021-11-09 09:09:45,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-09 09:09:45,605 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:09:45,605 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:09:45,605 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-09 09:09:45,606 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-09 09:09:45,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:09:45,606 INFO L85 PathProgramCache]: Analyzing trace with hash 1896194813, now seen corresponding path program 1 times [2021-11-09 09:09:45,606 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:09:45,607 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700968411] [2021-11-09 09:09:45,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:09:45,607 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:09:45,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:09:45,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:09:45,726 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:09:45,726 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700968411] [2021-11-09 09:09:45,726 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700968411] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:09:45,726 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:09:45,726 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-09 09:09:45,727 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050230731] [2021-11-09 09:09:45,727 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-09 09:09:45,727 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:09:45,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-09 09:09:45,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-09 09:09:45,728 INFO L87 Difference]: Start difference. First operand 788 states and 1071 transitions. Second operand has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:09:46,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:09:46,993 INFO L93 Difference]: Finished difference Result 2046 states and 2889 transitions. [2021-11-09 09:09:46,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-09 09:09:46,993 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2021-11-09 09:09:46,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:09:47,000 INFO L225 Difference]: With dead ends: 2046 [2021-11-09 09:09:47,000 INFO L226 Difference]: Without dead ends: 1784 [2021-11-09 09:09:47,002 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-11-09 09:09:47,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1784 states. [2021-11-09 09:09:47,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1784 to 784. [2021-11-09 09:09:47,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 784 states, 768 states have (on average 1.3880208333333333) internal successors, (1066), 783 states have internal predecessors, (1066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:09:47,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 784 states to 784 states and 1066 transitions. [2021-11-09 09:09:47,136 INFO L78 Accepts]: Start accepts. Automaton has 784 states and 1066 transitions. Word has length 80 [2021-11-09 09:09:47,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:09:47,136 INFO L470 AbstractCegarLoop]: Abstraction has 784 states and 1066 transitions. [2021-11-09 09:09:47,137 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:09:47,137 INFO L276 IsEmpty]: Start isEmpty. Operand 784 states and 1066 transitions. [2021-11-09 09:09:47,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-09 09:09:47,138 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:09:47,139 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:09:47,139 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-09 09:09:47,139 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-09 09:09:47,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:09:47,140 INFO L85 PathProgramCache]: Analyzing trace with hash 2135531548, now seen corresponding path program 1 times [2021-11-09 09:09:47,140 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:09:47,140 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417416393] [2021-11-09 09:09:47,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:09:47,140 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:09:47,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:09:47,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:09:47,281 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:09:47,282 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417416393] [2021-11-09 09:09:47,282 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417416393] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:09:47,282 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:09:47,282 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-09 09:09:47,282 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905310463] [2021-11-09 09:09:47,284 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-09 09:09:47,284 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:09:47,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-09 09:09:47,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-09 09:09:47,285 INFO L87 Difference]: Start difference. First operand 784 states and 1066 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:09:48,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:09:48,349 INFO L93 Difference]: Finished difference Result 1612 states and 2256 transitions. [2021-11-09 09:09:48,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-09 09:09:48,349 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2021-11-09 09:09:48,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:09:48,357 INFO L225 Difference]: With dead ends: 1612 [2021-11-09 09:09:48,357 INFO L226 Difference]: Without dead ends: 1354 [2021-11-09 09:09:48,358 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2021-11-09 09:09:48,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1354 states. [2021-11-09 09:09:48,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1354 to 784. [2021-11-09 09:09:48,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 784 states, 768 states have (on average 1.3854166666666667) internal successors, (1064), 783 states have internal predecessors, (1064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:09:48,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 784 states to 784 states and 1064 transitions. [2021-11-09 09:09:48,489 INFO L78 Accepts]: Start accepts. Automaton has 784 states and 1064 transitions. Word has length 81 [2021-11-09 09:09:48,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:09:48,489 INFO L470 AbstractCegarLoop]: Abstraction has 784 states and 1064 transitions. [2021-11-09 09:09:48,489 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:09:48,489 INFO L276 IsEmpty]: Start isEmpty. Operand 784 states and 1064 transitions. [2021-11-09 09:09:48,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-09 09:09:48,491 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:09:48,491 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:09:48,492 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-09 09:09:48,492 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-09 09:09:48,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:09:48,492 INFO L85 PathProgramCache]: Analyzing trace with hash -247238646, now seen corresponding path program 1 times [2021-11-09 09:09:48,492 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:09:48,493 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420356574] [2021-11-09 09:09:48,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:09:48,493 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:09:48,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:09:48,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:09:48,670 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:09:48,671 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420356574] [2021-11-09 09:09:48,671 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420356574] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:09:48,671 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:09:48,671 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-09 09:09:48,671 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187475338] [2021-11-09 09:09:48,673 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-09 09:09:48,673 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:09:48,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-09 09:09:48,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-09 09:09:48,674 INFO L87 Difference]: Start difference. First operand 784 states and 1064 transitions. Second operand has 11 states, 11 states have (on average 7.363636363636363) internal successors, (81), 10 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:09:51,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:09:51,317 INFO L93 Difference]: Finished difference Result 3698 states and 5294 transitions. [2021-11-09 09:09:51,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-09 09:09:51,317 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.363636363636363) internal successors, (81), 10 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2021-11-09 09:09:51,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:09:51,333 INFO L225 Difference]: With dead ends: 3698 [2021-11-09 09:09:51,333 INFO L226 Difference]: Without dead ends: 3424 [2021-11-09 09:09:51,335 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2021-11-09 09:09:51,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3424 states. [2021-11-09 09:09:51,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3424 to 792. [2021-11-09 09:09:51,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 792 states, 776 states have (on average 1.3814432989690721) internal successors, (1072), 791 states have internal predecessors, (1072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:09:51,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 792 states to 792 states and 1072 transitions. [2021-11-09 09:09:51,500 INFO L78 Accepts]: Start accepts. Automaton has 792 states and 1072 transitions. Word has length 81 [2021-11-09 09:09:51,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:09:51,500 INFO L470 AbstractCegarLoop]: Abstraction has 792 states and 1072 transitions. [2021-11-09 09:09:51,500 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.363636363636363) internal successors, (81), 10 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:09:51,501 INFO L276 IsEmpty]: Start isEmpty. Operand 792 states and 1072 transitions. [2021-11-09 09:09:51,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-09 09:09:51,503 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:09:51,503 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:09:51,503 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-09 09:09:51,503 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-09 09:09:51,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:09:51,504 INFO L85 PathProgramCache]: Analyzing trace with hash -1648828412, now seen corresponding path program 1 times [2021-11-09 09:09:51,504 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:09:51,504 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385732162] [2021-11-09 09:09:51,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:09:51,504 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:09:51,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:09:51,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:09:51,665 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:09:51,665 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385732162] [2021-11-09 09:09:51,666 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385732162] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:09:51,666 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:09:51,666 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-09 09:09:51,666 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925640088] [2021-11-09 09:09:51,666 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-09 09:09:51,667 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:09:51,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-09 09:09:51,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-09 09:09:51,668 INFO L87 Difference]: Start difference. First operand 792 states and 1072 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:09:53,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:09:53,037 INFO L93 Difference]: Finished difference Result 1616 states and 2257 transitions. [2021-11-09 09:09:53,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-09 09:09:53,037 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2021-11-09 09:09:53,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:09:53,043 INFO L225 Difference]: With dead ends: 1616 [2021-11-09 09:09:53,043 INFO L226 Difference]: Without dead ends: 1362 [2021-11-09 09:09:53,044 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2021-11-09 09:09:53,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1362 states. [2021-11-09 09:09:53,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1362 to 792. [2021-11-09 09:09:53,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 792 states, 776 states have (on average 1.3788659793814433) internal successors, (1070), 791 states have internal predecessors, (1070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:09:53,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 792 states to 792 states and 1070 transitions. [2021-11-09 09:09:53,171 INFO L78 Accepts]: Start accepts. Automaton has 792 states and 1070 transitions. Word has length 81 [2021-11-09 09:09:53,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:09:53,171 INFO L470 AbstractCegarLoop]: Abstraction has 792 states and 1070 transitions. [2021-11-09 09:09:53,172 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:09:53,172 INFO L276 IsEmpty]: Start isEmpty. Operand 792 states and 1070 transitions. [2021-11-09 09:09:53,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-09 09:09:53,174 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:09:53,174 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:09:53,174 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-09 09:09:53,175 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-09 09:09:53,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:09:53,175 INFO L85 PathProgramCache]: Analyzing trace with hash 1380394973, now seen corresponding path program 1 times [2021-11-09 09:09:53,175 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:09:53,176 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52079482] [2021-11-09 09:09:53,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:09:53,176 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:09:53,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:09:53,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:09:53,339 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:09:53,339 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52079482] [2021-11-09 09:09:53,339 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52079482] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:09:53,340 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:09:53,340 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-09 09:09:53,340 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951484393] [2021-11-09 09:09:53,341 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-09 09:09:53,342 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:09:53,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-09 09:09:53,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-09 09:09:53,343 INFO L87 Difference]: Start difference. First operand 792 states and 1070 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:09:54,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:09:54,674 INFO L93 Difference]: Finished difference Result 1626 states and 2268 transitions. [2021-11-09 09:09:54,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-09 09:09:54,675 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2021-11-09 09:09:54,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:09:54,677 INFO L225 Difference]: With dead ends: 1626 [2021-11-09 09:09:54,677 INFO L226 Difference]: Without dead ends: 1362 [2021-11-09 09:09:54,677 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2021-11-09 09:09:54,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1362 states. [2021-11-09 09:09:54,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1362 to 792. [2021-11-09 09:09:54,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 792 states, 776 states have (on average 1.3737113402061856) internal successors, (1066), 791 states have internal predecessors, (1066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:09:54,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 792 states to 792 states and 1066 transitions. [2021-11-09 09:09:54,786 INFO L78 Accepts]: Start accepts. Automaton has 792 states and 1066 transitions. Word has length 81 [2021-11-09 09:09:54,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:09:54,786 INFO L470 AbstractCegarLoop]: Abstraction has 792 states and 1066 transitions. [2021-11-09 09:09:54,786 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:09:54,787 INFO L276 IsEmpty]: Start isEmpty. Operand 792 states and 1066 transitions. [2021-11-09 09:09:54,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-09 09:09:54,788 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:09:54,788 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:09:54,789 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-09 09:09:54,789 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-09 09:09:54,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:09:54,789 INFO L85 PathProgramCache]: Analyzing trace with hash -90069907, now seen corresponding path program 1 times [2021-11-09 09:09:54,790 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:09:54,790 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442074894] [2021-11-09 09:09:54,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:09:54,790 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:09:54,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:09:54,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:09:54,930 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:09:54,930 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442074894] [2021-11-09 09:09:54,931 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442074894] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:09:54,931 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:09:54,931 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-09 09:09:54,931 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598285672] [2021-11-09 09:09:54,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-09 09:09:54,932 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:09:54,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-09 09:09:54,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-09 09:09:54,933 INFO L87 Difference]: Start difference. First operand 792 states and 1066 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:09:56,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:09:56,113 INFO L93 Difference]: Finished difference Result 1614 states and 2249 transitions. [2021-11-09 09:09:56,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-09 09:09:56,125 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2021-11-09 09:09:56,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:09:56,127 INFO L225 Difference]: With dead ends: 1614 [2021-11-09 09:09:56,127 INFO L226 Difference]: Without dead ends: 1362 [2021-11-09 09:09:56,128 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2021-11-09 09:09:56,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1362 states. [2021-11-09 09:09:56,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1362 to 792. [2021-11-09 09:09:56,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 792 states, 776 states have (on average 1.3724226804123711) internal successors, (1065), 791 states have internal predecessors, (1065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:09:56,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 792 states to 792 states and 1065 transitions. [2021-11-09 09:09:56,302 INFO L78 Accepts]: Start accepts. Automaton has 792 states and 1065 transitions. Word has length 81 [2021-11-09 09:09:56,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:09:56,302 INFO L470 AbstractCegarLoop]: Abstraction has 792 states and 1065 transitions. [2021-11-09 09:09:56,302 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:09:56,302 INFO L276 IsEmpty]: Start isEmpty. Operand 792 states and 1065 transitions. [2021-11-09 09:09:56,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-09 09:09:56,303 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:09:56,303 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:09:56,304 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-09 09:09:56,304 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-09 09:09:56,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:09:56,304 INFO L85 PathProgramCache]: Analyzing trace with hash -1355696644, now seen corresponding path program 1 times [2021-11-09 09:09:56,304 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:09:56,304 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283494320] [2021-11-09 09:09:56,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:09:56,305 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:09:56,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:09:56,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:09:56,476 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:09:56,476 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283494320] [2021-11-09 09:09:56,476 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283494320] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:09:56,477 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:09:56,477 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-09 09:09:56,477 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785525523] [2021-11-09 09:09:56,477 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-09 09:09:56,478 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:09:56,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-09 09:09:56,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-09 09:09:56,479 INFO L87 Difference]: Start difference. First operand 792 states and 1065 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:09:57,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:09:57,933 INFO L93 Difference]: Finished difference Result 1367 states and 1877 transitions. [2021-11-09 09:09:57,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-09 09:09:57,934 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2021-11-09 09:09:57,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:09:57,937 INFO L225 Difference]: With dead ends: 1367 [2021-11-09 09:09:57,937 INFO L226 Difference]: Without dead ends: 1362 [2021-11-09 09:09:57,938 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2021-11-09 09:09:57,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1362 states. [2021-11-09 09:09:58,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1362 to 792. [2021-11-09 09:09:58,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 792 states, 776 states have (on average 1.3698453608247423) internal successors, (1063), 791 states have internal predecessors, (1063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:09:58,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 792 states to 792 states and 1063 transitions. [2021-11-09 09:09:58,067 INFO L78 Accepts]: Start accepts. Automaton has 792 states and 1063 transitions. Word has length 81 [2021-11-09 09:09:58,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:09:58,068 INFO L470 AbstractCegarLoop]: Abstraction has 792 states and 1063 transitions. [2021-11-09 09:09:58,068 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:09:58,068 INFO L276 IsEmpty]: Start isEmpty. Operand 792 states and 1063 transitions. [2021-11-09 09:09:58,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-09 09:09:58,070 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:09:58,070 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:09:58,070 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-09 09:09:58,070 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-09 09:09:58,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:09:58,071 INFO L85 PathProgramCache]: Analyzing trace with hash 558624169, now seen corresponding path program 1 times [2021-11-09 09:09:58,071 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:09:58,071 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862152737] [2021-11-09 09:09:58,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:09:58,072 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:09:58,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:09:58,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:09:58,216 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:09:58,216 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862152737] [2021-11-09 09:09:58,217 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862152737] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:09:58,217 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:09:58,217 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-09 09:09:58,217 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175875074] [2021-11-09 09:09:58,218 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-09 09:09:58,218 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:09:58,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-09 09:09:58,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-09 09:09:58,219 INFO L87 Difference]: Start difference. First operand 792 states and 1063 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:09:59,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:09:59,567 INFO L93 Difference]: Finished difference Result 1616 states and 2248 transitions. [2021-11-09 09:09:59,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-09 09:09:59,567 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2021-11-09 09:09:59,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:09:59,570 INFO L225 Difference]: With dead ends: 1616 [2021-11-09 09:09:59,570 INFO L226 Difference]: Without dead ends: 1362 [2021-11-09 09:09:59,570 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2021-11-09 09:09:59,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1362 states. [2021-11-09 09:09:59,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1362 to 792. [2021-11-09 09:09:59,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 792 states, 776 states have (on average 1.3672680412371134) internal successors, (1061), 791 states have internal predecessors, (1061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:09:59,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 792 states to 792 states and 1061 transitions. [2021-11-09 09:09:59,695 INFO L78 Accepts]: Start accepts. Automaton has 792 states and 1061 transitions. Word has length 81 [2021-11-09 09:09:59,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:09:59,695 INFO L470 AbstractCegarLoop]: Abstraction has 792 states and 1061 transitions. [2021-11-09 09:09:59,696 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:09:59,696 INFO L276 IsEmpty]: Start isEmpty. Operand 792 states and 1061 transitions. [2021-11-09 09:09:59,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-09 09:09:59,697 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:09:59,697 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:09:59,697 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-11-09 09:09:59,697 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-09 09:09:59,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:09:59,697 INFO L85 PathProgramCache]: Analyzing trace with hash -237124242, now seen corresponding path program 1 times [2021-11-09 09:09:59,698 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:09:59,698 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418021402] [2021-11-09 09:09:59,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:09:59,698 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:09:59,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:09:59,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:09:59,854 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:09:59,855 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418021402] [2021-11-09 09:09:59,855 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418021402] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:09:59,855 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:09:59,855 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-09 09:09:59,855 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054177739] [2021-11-09 09:09:59,856 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-09 09:09:59,856 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:09:59,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-09 09:09:59,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-09 09:09:59,857 INFO L87 Difference]: Start difference. First operand 792 states and 1061 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:10:01,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:10:01,188 INFO L93 Difference]: Finished difference Result 1612 states and 2242 transitions. [2021-11-09 09:10:01,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-09 09:10:01,189 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2021-11-09 09:10:01,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:10:01,191 INFO L225 Difference]: With dead ends: 1612 [2021-11-09 09:10:01,191 INFO L226 Difference]: Without dead ends: 1362 [2021-11-09 09:10:01,192 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2021-11-09 09:10:01,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1362 states. [2021-11-09 09:10:01,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1362 to 792. [2021-11-09 09:10:01,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 792 states, 776 states have (on average 1.365979381443299) internal successors, (1060), 791 states have internal predecessors, (1060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:10:01,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 792 states to 792 states and 1060 transitions. [2021-11-09 09:10:01,324 INFO L78 Accepts]: Start accepts. Automaton has 792 states and 1060 transitions. Word has length 81 [2021-11-09 09:10:01,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:10:01,324 INFO L470 AbstractCegarLoop]: Abstraction has 792 states and 1060 transitions. [2021-11-09 09:10:01,325 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:10:01,325 INFO L276 IsEmpty]: Start isEmpty. Operand 792 states and 1060 transitions. [2021-11-09 09:10:01,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-09 09:10:01,327 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:10:01,327 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:10:01,327 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-11-09 09:10:01,327 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-09 09:10:01,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:10:01,328 INFO L85 PathProgramCache]: Analyzing trace with hash 1610096682, now seen corresponding path program 1 times [2021-11-09 09:10:01,328 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:10:01,328 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568442558] [2021-11-09 09:10:01,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:10:01,329 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:10:01,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:10:01,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:10:01,465 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:10:01,465 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568442558] [2021-11-09 09:10:01,465 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568442558] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:10:01,466 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:10:01,466 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-09 09:10:01,466 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257135670] [2021-11-09 09:10:01,466 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-09 09:10:01,467 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:10:01,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-09 09:10:01,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-09 09:10:01,468 INFO L87 Difference]: Start difference. First operand 792 states and 1060 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:10:02,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:10:02,725 INFO L93 Difference]: Finished difference Result 2058 states and 2883 transitions. [2021-11-09 09:10:02,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-09 09:10:02,732 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2021-11-09 09:10:02,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:10:02,737 INFO L225 Difference]: With dead ends: 2058 [2021-11-09 09:10:02,737 INFO L226 Difference]: Without dead ends: 1784 [2021-11-09 09:10:02,738 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-11-09 09:10:02,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1784 states. [2021-11-09 09:10:02,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1784 to 792. [2021-11-09 09:10:02,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 792 states, 776 states have (on average 1.3634020618556701) internal successors, (1058), 791 states have internal predecessors, (1058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:10:02,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 792 states to 792 states and 1058 transitions. [2021-11-09 09:10:02,917 INFO L78 Accepts]: Start accepts. Automaton has 792 states and 1058 transitions. Word has length 81 [2021-11-09 09:10:02,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:10:02,917 INFO L470 AbstractCegarLoop]: Abstraction has 792 states and 1058 transitions. [2021-11-09 09:10:02,917 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:10:02,917 INFO L276 IsEmpty]: Start isEmpty. Operand 792 states and 1058 transitions. [2021-11-09 09:10:02,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-09 09:10:02,918 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:10:02,919 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:10:02,919 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-11-09 09:10:02,919 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-09 09:10:02,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:10:02,920 INFO L85 PathProgramCache]: Analyzing trace with hash -302100420, now seen corresponding path program 1 times [2021-11-09 09:10:02,920 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:10:02,920 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134182132] [2021-11-09 09:10:02,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:10:02,920 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:10:02,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:10:03,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:10:03,055 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:10:03,056 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134182132] [2021-11-09 09:10:03,056 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134182132] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:10:03,056 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:10:03,056 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-09 09:10:03,056 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274277037] [2021-11-09 09:10:03,057 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-09 09:10:03,057 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:10:03,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-09 09:10:03,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-09 09:10:03,058 INFO L87 Difference]: Start difference. First operand 792 states and 1058 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:10:04,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:10:04,677 INFO L93 Difference]: Finished difference Result 2116 states and 2990 transitions. [2021-11-09 09:10:04,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-09 09:10:04,677 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2021-11-09 09:10:04,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:10:04,680 INFO L225 Difference]: With dead ends: 2116 [2021-11-09 09:10:04,680 INFO L226 Difference]: Without dead ends: 1858 [2021-11-09 09:10:04,681 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2021-11-09 09:10:04,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1858 states. [2021-11-09 09:10:04,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1858 to 792. [2021-11-09 09:10:04,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 792 states, 776 states have (on average 1.3608247422680413) internal successors, (1056), 791 states have internal predecessors, (1056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:10:04,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 792 states to 792 states and 1056 transitions. [2021-11-09 09:10:04,818 INFO L78 Accepts]: Start accepts. Automaton has 792 states and 1056 transitions. Word has length 81 [2021-11-09 09:10:04,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:10:04,818 INFO L470 AbstractCegarLoop]: Abstraction has 792 states and 1056 transitions. [2021-11-09 09:10:04,819 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:10:04,819 INFO L276 IsEmpty]: Start isEmpty. Operand 792 states and 1056 transitions. [2021-11-09 09:10:04,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-09 09:10:04,820 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:10:04,821 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:10:04,821 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-11-09 09:10:04,821 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-09 09:10:04,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:10:04,822 INFO L85 PathProgramCache]: Analyzing trace with hash -286808248, now seen corresponding path program 1 times [2021-11-09 09:10:04,822 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:10:04,822 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227452011] [2021-11-09 09:10:04,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:10:04,823 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:10:04,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:10:04,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:10:04,968 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:10:04,968 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227452011] [2021-11-09 09:10:04,969 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227452011] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:10:04,969 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:10:04,969 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-09 09:10:04,969 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54577619] [2021-11-09 09:10:04,969 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-09 09:10:04,970 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:10:04,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-09 09:10:04,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-09 09:10:04,970 INFO L87 Difference]: Start difference. First operand 792 states and 1056 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:10:06,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:10:06,260 INFO L93 Difference]: Finished difference Result 1686 states and 2331 transitions. [2021-11-09 09:10:06,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-09 09:10:06,260 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2021-11-09 09:10:06,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:10:06,262 INFO L225 Difference]: With dead ends: 1686 [2021-11-09 09:10:06,262 INFO L226 Difference]: Without dead ends: 1346 [2021-11-09 09:10:06,263 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2021-11-09 09:10:06,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1346 states. [2021-11-09 09:10:06,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1346 to 792. [2021-11-09 09:10:06,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 792 states, 776 states have (on average 1.3582474226804124) internal successors, (1054), 791 states have internal predecessors, (1054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:10:06,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 792 states to 792 states and 1054 transitions. [2021-11-09 09:10:06,476 INFO L78 Accepts]: Start accepts. Automaton has 792 states and 1054 transitions. Word has length 81 [2021-11-09 09:10:06,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:10:06,476 INFO L470 AbstractCegarLoop]: Abstraction has 792 states and 1054 transitions. [2021-11-09 09:10:06,477 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:10:06,477 INFO L276 IsEmpty]: Start isEmpty. Operand 792 states and 1054 transitions. [2021-11-09 09:10:06,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-09 09:10:06,478 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:10:06,478 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:10:06,478 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-11-09 09:10:06,478 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-09 09:10:06,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:10:06,479 INFO L85 PathProgramCache]: Analyzing trace with hash -1055423202, now seen corresponding path program 1 times [2021-11-09 09:10:06,479 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:10:06,479 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967101887] [2021-11-09 09:10:06,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:10:06,480 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:10:06,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:10:06,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:10:06,636 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:10:06,636 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967101887] [2021-11-09 09:10:06,637 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967101887] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:10:06,637 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:10:06,637 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-09 09:10:06,637 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479553331] [2021-11-09 09:10:06,638 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-09 09:10:06,638 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:10:06,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-09 09:10:06,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-09 09:10:06,639 INFO L87 Difference]: Start difference. First operand 792 states and 1054 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:10:08,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:10:08,007 INFO L93 Difference]: Finished difference Result 1863 states and 2608 transitions. [2021-11-09 09:10:08,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-09 09:10:08,007 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2021-11-09 09:10:08,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:10:08,011 INFO L225 Difference]: With dead ends: 1863 [2021-11-09 09:10:08,012 INFO L226 Difference]: Without dead ends: 1858 [2021-11-09 09:10:08,013 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2021-11-09 09:10:08,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1858 states. [2021-11-09 09:10:08,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1858 to 792. [2021-11-09 09:10:08,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 792 states, 776 states have (on average 1.356958762886598) internal successors, (1053), 791 states have internal predecessors, (1053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:10:08,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 792 states to 792 states and 1053 transitions. [2021-11-09 09:10:08,245 INFO L78 Accepts]: Start accepts. Automaton has 792 states and 1053 transitions. Word has length 81 [2021-11-09 09:10:08,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:10:08,246 INFO L470 AbstractCegarLoop]: Abstraction has 792 states and 1053 transitions. [2021-11-09 09:10:08,246 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:10:08,246 INFO L276 IsEmpty]: Start isEmpty. Operand 792 states and 1053 transitions. [2021-11-09 09:10:08,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-09 09:10:08,248 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:10:08,248 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:10:08,248 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-11-09 09:10:08,249 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-09 09:10:08,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:10:08,249 INFO L85 PathProgramCache]: Analyzing trace with hash 856773900, now seen corresponding path program 1 times [2021-11-09 09:10:08,250 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:10:08,250 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986897437] [2021-11-09 09:10:08,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:10:08,250 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:10:08,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:10:08,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:10:08,473 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:10:08,473 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986897437] [2021-11-09 09:10:08,473 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986897437] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:10:08,473 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:10:08,473 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-09 09:10:08,473 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725359755] [2021-11-09 09:10:08,474 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-09 09:10:08,474 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:10:08,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-09 09:10:08,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-09 09:10:08,475 INFO L87 Difference]: Start difference. First operand 792 states and 1053 transitions. Second operand has 11 states, 11 states have (on average 7.363636363636363) internal successors, (81), 10 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:10:12,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:10:12,201 INFO L93 Difference]: Finished difference Result 4054 states and 5748 transitions. [2021-11-09 09:10:12,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-11-09 09:10:12,202 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.363636363636363) internal successors, (81), 10 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2021-11-09 09:10:12,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:10:12,210 INFO L225 Difference]: With dead ends: 4054 [2021-11-09 09:10:12,210 INFO L226 Difference]: Without dead ends: 4037 [2021-11-09 09:10:12,212 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 445 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=374, Invalid=1186, Unknown=0, NotChecked=0, Total=1560 [2021-11-09 09:10:12,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4037 states. [2021-11-09 09:10:12,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4037 to 796. [2021-11-09 09:10:12,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 796 states, 780 states have (on average 1.3551282051282052) internal successors, (1057), 795 states have internal predecessors, (1057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:10:12,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 796 states to 796 states and 1057 transitions. [2021-11-09 09:10:12,444 INFO L78 Accepts]: Start accepts. Automaton has 796 states and 1057 transitions. Word has length 81 [2021-11-09 09:10:12,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:10:12,444 INFO L470 AbstractCegarLoop]: Abstraction has 796 states and 1057 transitions. [2021-11-09 09:10:12,444 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.363636363636363) internal successors, (81), 10 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:10:12,445 INFO L276 IsEmpty]: Start isEmpty. Operand 796 states and 1057 transitions. [2021-11-09 09:10:12,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-09 09:10:12,446 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:10:12,446 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:10:12,446 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-11-09 09:10:12,447 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-09 09:10:12,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:10:12,447 INFO L85 PathProgramCache]: Analyzing trace with hash -544552721, now seen corresponding path program 1 times [2021-11-09 09:10:12,447 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:10:12,448 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119971335] [2021-11-09 09:10:12,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:10:12,448 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:10:12,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:10:12,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:10:12,588 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:10:12,588 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119971335] [2021-11-09 09:10:12,588 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119971335] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:10:12,588 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:10:12,588 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-09 09:10:12,588 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685639032] [2021-11-09 09:10:12,589 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-09 09:10:12,589 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:10:12,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-09 09:10:12,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-09 09:10:12,590 INFO L87 Difference]: Start difference. First operand 796 states and 1057 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:10:13,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:10:13,969 INFO L93 Difference]: Finished difference Result 2114 states and 2982 transitions. [2021-11-09 09:10:13,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-09 09:10:13,970 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2021-11-09 09:10:13,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:10:13,973 INFO L225 Difference]: With dead ends: 2114 [2021-11-09 09:10:13,973 INFO L226 Difference]: Without dead ends: 1862 [2021-11-09 09:10:13,975 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2021-11-09 09:10:13,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1862 states. [2021-11-09 09:10:14,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1862 to 796. [2021-11-09 09:10:14,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 796 states, 780 states have (on average 1.353846153846154) internal successors, (1056), 795 states have internal predecessors, (1056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:10:14,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 796 states to 796 states and 1056 transitions. [2021-11-09 09:10:14,201 INFO L78 Accepts]: Start accepts. Automaton has 796 states and 1056 transitions. Word has length 81 [2021-11-09 09:10:14,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:10:14,201 INFO L470 AbstractCegarLoop]: Abstraction has 796 states and 1056 transitions. [2021-11-09 09:10:14,201 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:10:14,202 INFO L276 IsEmpty]: Start isEmpty. Operand 796 states and 1056 transitions. [2021-11-09 09:10:14,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-09 09:10:14,203 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:10:14,204 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:10:14,204 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-11-09 09:10:14,204 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-09 09:10:14,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:10:14,205 INFO L85 PathProgramCache]: Analyzing trace with hash -1810559777, now seen corresponding path program 1 times [2021-11-09 09:10:14,205 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:10:14,205 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134478190] [2021-11-09 09:10:14,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:10:14,206 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:10:14,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:10:14,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:10:14,401 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:10:14,401 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134478190] [2021-11-09 09:10:14,402 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134478190] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:10:14,402 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:10:14,402 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-09 09:10:14,403 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79977765] [2021-11-09 09:10:14,403 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-09 09:10:14,403 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:10:14,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-09 09:10:14,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-11-09 09:10:14,404 INFO L87 Difference]: Start difference. First operand 796 states and 1056 transitions. Second operand has 12 states, 12 states have (on average 6.75) internal successors, (81), 11 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:10:16,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:10:16,746 INFO L93 Difference]: Finished difference Result 2036 states and 2808 transitions. [2021-11-09 09:10:16,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-09 09:10:16,746 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.75) internal successors, (81), 11 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2021-11-09 09:10:16,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:10:16,748 INFO L225 Difference]: With dead ends: 2036 [2021-11-09 09:10:16,748 INFO L226 Difference]: Without dead ends: 2031 [2021-11-09 09:10:16,749 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 266 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=300, Invalid=822, Unknown=0, NotChecked=0, Total=1122 [2021-11-09 09:10:16,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2031 states. [2021-11-09 09:10:16,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2031 to 796. [2021-11-09 09:10:16,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 796 states, 780 states have (on average 1.3525641025641026) internal successors, (1055), 795 states have internal predecessors, (1055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:10:16,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 796 states to 796 states and 1055 transitions. [2021-11-09 09:10:16,944 INFO L78 Accepts]: Start accepts. Automaton has 796 states and 1055 transitions. Word has length 81 [2021-11-09 09:10:16,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:10:16,945 INFO L470 AbstractCegarLoop]: Abstraction has 796 states and 1055 transitions. [2021-11-09 09:10:16,945 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.75) internal successors, (81), 11 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:10:16,945 INFO L276 IsEmpty]: Start isEmpty. Operand 796 states and 1055 transitions. [2021-11-09 09:10:16,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-09 09:10:16,946 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:10:16,946 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:10:16,946 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-11-09 09:10:16,947 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-09 09:10:16,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:10:16,947 INFO L85 PathProgramCache]: Analyzing trace with hash -1323094470, now seen corresponding path program 1 times [2021-11-09 09:10:16,947 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:10:16,947 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739052019] [2021-11-09 09:10:16,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:10:16,948 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:10:16,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:10:17,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:10:17,065 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:10:17,066 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739052019] [2021-11-09 09:10:17,066 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739052019] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:10:17,066 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:10:17,066 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-09 09:10:17,066 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360711745] [2021-11-09 09:10:17,067 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-09 09:10:17,067 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:10:17,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-09 09:10:17,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-09 09:10:17,068 INFO L87 Difference]: Start difference. First operand 796 states and 1055 transitions. Second operand has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:10:18,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:10:18,472 INFO L93 Difference]: Finished difference Result 2058 states and 2872 transitions. [2021-11-09 09:10:18,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-09 09:10:18,473 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-11-09 09:10:18,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:10:18,477 INFO L225 Difference]: With dead ends: 2058 [2021-11-09 09:10:18,477 INFO L226 Difference]: Without dead ends: 1784 [2021-11-09 09:10:18,478 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-11-09 09:10:18,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1784 states. [2021-11-09 09:10:18,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1784 to 788. [2021-11-09 09:10:18,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 788 states, 772 states have (on average 1.3536269430051813) internal successors, (1045), 787 states have internal predecessors, (1045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:10:18,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 788 states to 788 states and 1045 transitions. [2021-11-09 09:10:18,720 INFO L78 Accepts]: Start accepts. Automaton has 788 states and 1045 transitions. Word has length 82 [2021-11-09 09:10:18,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:10:18,721 INFO L470 AbstractCegarLoop]: Abstraction has 788 states and 1045 transitions. [2021-11-09 09:10:18,721 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:10:18,721 INFO L276 IsEmpty]: Start isEmpty. Operand 788 states and 1045 transitions. [2021-11-09 09:10:18,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-09 09:10:18,723 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:10:18,723 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:10:18,723 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-11-09 09:10:18,724 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-09 09:10:18,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:10:18,724 INFO L85 PathProgramCache]: Analyzing trace with hash -558946144, now seen corresponding path program 1 times [2021-11-09 09:10:18,724 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:10:18,725 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880232083] [2021-11-09 09:10:18,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:10:18,725 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:10:18,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:10:18,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:10:18,873 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:10:18,873 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880232083] [2021-11-09 09:10:18,873 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880232083] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:10:18,873 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:10:18,874 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-09 09:10:18,874 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162459820] [2021-11-09 09:10:18,874 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-09 09:10:18,874 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:10:18,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-09 09:10:18,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-09 09:10:18,875 INFO L87 Difference]: Start difference. First operand 788 states and 1045 transitions. Second operand has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:10:20,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:10:20,669 INFO L93 Difference]: Finished difference Result 1859 states and 2599 transitions. [2021-11-09 09:10:20,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-09 09:10:20,670 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-11-09 09:10:20,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:10:20,672 INFO L225 Difference]: With dead ends: 1859 [2021-11-09 09:10:20,672 INFO L226 Difference]: Without dead ends: 1854 [2021-11-09 09:10:20,673 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2021-11-09 09:10:20,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1854 states. [2021-11-09 09:10:20,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1854 to 788. [2021-11-09 09:10:20,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 788 states, 772 states have (on average 1.3523316062176165) internal successors, (1044), 787 states have internal predecessors, (1044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:10:20,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 788 states to 788 states and 1044 transitions. [2021-11-09 09:10:20,862 INFO L78 Accepts]: Start accepts. Automaton has 788 states and 1044 transitions. Word has length 82 [2021-11-09 09:10:20,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:10:20,863 INFO L470 AbstractCegarLoop]: Abstraction has 788 states and 1044 transitions. [2021-11-09 09:10:20,863 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:10:20,863 INFO L276 IsEmpty]: Start isEmpty. Operand 788 states and 1044 transitions. [2021-11-09 09:10:20,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-09 09:10:20,864 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:10:20,864 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:10:20,864 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-11-09 09:10:20,864 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-09 09:10:20,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:10:20,865 INFO L85 PathProgramCache]: Analyzing trace with hash -1458444177, now seen corresponding path program 1 times [2021-11-09 09:10:20,865 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:10:20,865 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698941164] [2021-11-09 09:10:20,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:10:20,866 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:10:20,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:10:21,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:10:21,004 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:10:21,005 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698941164] [2021-11-09 09:10:21,005 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698941164] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:10:21,005 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:10:21,005 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-09 09:10:21,005 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073679213] [2021-11-09 09:10:21,006 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-09 09:10:21,006 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:10:21,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-09 09:10:21,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-09 09:10:21,007 INFO L87 Difference]: Start difference. First operand 788 states and 1044 transitions. Second operand has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:10:22,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:10:22,738 INFO L93 Difference]: Finished difference Result 1801 states and 2484 transitions. [2021-11-09 09:10:22,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-09 09:10:22,739 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-11-09 09:10:22,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:10:22,741 INFO L225 Difference]: With dead ends: 1801 [2021-11-09 09:10:22,741 INFO L226 Difference]: Without dead ends: 1784 [2021-11-09 09:10:22,741 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-11-09 09:10:22,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1784 states. [2021-11-09 09:10:22,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1784 to 784. [2021-11-09 09:10:22,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 784 states, 768 states have (on average 1.3528645833333333) internal successors, (1039), 783 states have internal predecessors, (1039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:10:22,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 784 states to 784 states and 1039 transitions. [2021-11-09 09:10:22,909 INFO L78 Accepts]: Start accepts. Automaton has 784 states and 1039 transitions. Word has length 82 [2021-11-09 09:10:22,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:10:22,910 INFO L470 AbstractCegarLoop]: Abstraction has 784 states and 1039 transitions. [2021-11-09 09:10:22,910 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:10:22,910 INFO L276 IsEmpty]: Start isEmpty. Operand 784 states and 1039 transitions. [2021-11-09 09:10:22,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-09 09:10:22,912 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:10:22,912 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:10:22,913 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-11-09 09:10:22,913 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-09 09:10:22,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:10:22,914 INFO L85 PathProgramCache]: Analyzing trace with hash 1687929497, now seen corresponding path program 1 times [2021-11-09 09:10:22,914 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:10:22,914 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857623739] [2021-11-09 09:10:22,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:10:22,915 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:10:22,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:10:24,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:10:24,309 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:10:24,310 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857623739] [2021-11-09 09:10:24,310 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857623739] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:10:24,310 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:10:24,310 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-11-09 09:10:24,310 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656168209] [2021-11-09 09:10:24,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-11-09 09:10:24,311 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:10:24,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-11-09 09:10:24,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2021-11-09 09:10:24,312 INFO L87 Difference]: Start difference. First operand 784 states and 1039 transitions. Second operand has 28 states, 28 states have (on average 2.9642857142857144) internal successors, (83), 28 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:10:35,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:10:35,468 INFO L93 Difference]: Finished difference Result 2537 states and 3384 transitions. [2021-11-09 09:10:35,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-11-09 09:10:35,468 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 2.9642857142857144) internal successors, (83), 28 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2021-11-09 09:10:35,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:10:35,470 INFO L225 Difference]: With dead ends: 2537 [2021-11-09 09:10:35,470 INFO L226 Difference]: Without dead ends: 2275 [2021-11-09 09:10:35,472 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 352 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=416, Invalid=2034, Unknown=0, NotChecked=0, Total=2450 [2021-11-09 09:10:35,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2275 states. [2021-11-09 09:10:35,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2275 to 795. [2021-11-09 09:10:35,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 795 states, 779 states have (on average 1.350449293966624) internal successors, (1052), 794 states have internal predecessors, (1052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:10:35,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 795 states to 795 states and 1052 transitions. [2021-11-09 09:10:35,690 INFO L78 Accepts]: Start accepts. Automaton has 795 states and 1052 transitions. Word has length 83 [2021-11-09 09:10:35,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:10:35,690 INFO L470 AbstractCegarLoop]: Abstraction has 795 states and 1052 transitions. [2021-11-09 09:10:35,690 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 2.9642857142857144) internal successors, (83), 28 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:10:35,690 INFO L276 IsEmpty]: Start isEmpty. Operand 795 states and 1052 transitions. [2021-11-09 09:10:35,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-09 09:10:35,691 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:10:35,692 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:10:35,692 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-11-09 09:10:35,692 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-09 09:10:35,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:10:35,692 INFO L85 PathProgramCache]: Analyzing trace with hash -92587651, now seen corresponding path program 1 times [2021-11-09 09:10:35,692 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:10:35,693 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583521889] [2021-11-09 09:10:35,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:10:35,693 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:10:35,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:10:36,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:10:36,945 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:10:36,946 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583521889] [2021-11-09 09:10:36,946 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583521889] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:10:36,946 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:10:36,946 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-11-09 09:10:36,946 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751765753] [2021-11-09 09:10:36,946 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-11-09 09:10:36,947 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:10:36,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-11-09 09:10:36,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=670, Unknown=0, NotChecked=0, Total=756 [2021-11-09 09:10:36,948 INFO L87 Difference]: Start difference. First operand 795 states and 1052 transitions. Second operand has 28 states, 28 states have (on average 2.9642857142857144) internal successors, (83), 28 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:10:46,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:10:46,701 INFO L93 Difference]: Finished difference Result 3421 states and 4751 transitions. [2021-11-09 09:10:46,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-11-09 09:10:46,702 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 2.9642857142857144) internal successors, (83), 28 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2021-11-09 09:10:46,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:10:46,707 INFO L225 Difference]: With dead ends: 3421 [2021-11-09 09:10:46,707 INFO L226 Difference]: Without dead ends: 3164 [2021-11-09 09:10:46,710 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 512 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=505, Invalid=2465, Unknown=0, NotChecked=0, Total=2970 [2021-11-09 09:10:46,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3164 states. [2021-11-09 09:10:46,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3164 to 800. [2021-11-09 09:10:46,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 800 states, 784 states have (on average 1.3494897959183674) internal successors, (1058), 799 states have internal predecessors, (1058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:10:46,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 800 states to 800 states and 1058 transitions. [2021-11-09 09:10:46,981 INFO L78 Accepts]: Start accepts. Automaton has 800 states and 1058 transitions. Word has length 83 [2021-11-09 09:10:46,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:10:46,981 INFO L470 AbstractCegarLoop]: Abstraction has 800 states and 1058 transitions. [2021-11-09 09:10:46,982 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 2.9642857142857144) internal successors, (83), 28 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:10:46,982 INFO L276 IsEmpty]: Start isEmpty. Operand 800 states and 1058 transitions. [2021-11-09 09:10:46,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-09 09:10:46,983 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:10:46,983 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:10:46,983 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-11-09 09:10:46,983 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-09 09:10:46,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:10:46,983 INFO L85 PathProgramCache]: Analyzing trace with hash -539780137, now seen corresponding path program 1 times [2021-11-09 09:10:46,984 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:10:46,984 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310872003] [2021-11-09 09:10:46,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:10:46,984 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:10:47,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:10:48,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:10:48,194 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:10:48,194 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310872003] [2021-11-09 09:10:48,194 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310872003] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:10:48,194 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:10:48,195 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2021-11-09 09:10:48,195 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003823189] [2021-11-09 09:10:48,195 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-11-09 09:10:48,195 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:10:48,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-11-09 09:10:48,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=724, Unknown=0, NotChecked=0, Total=812 [2021-11-09 09:10:48,197 INFO L87 Difference]: Start difference. First operand 800 states and 1058 transitions. Second operand has 29 states, 29 states have (on average 2.8620689655172415) internal successors, (83), 29 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:10:57,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:10:57,711 INFO L93 Difference]: Finished difference Result 3408 states and 4736 transitions. [2021-11-09 09:10:57,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-11-09 09:10:57,712 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 2.8620689655172415) internal successors, (83), 29 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2021-11-09 09:10:57,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:10:57,715 INFO L225 Difference]: With dead ends: 3408 [2021-11-09 09:10:57,715 INFO L226 Difference]: Without dead ends: 3155 [2021-11-09 09:10:57,717 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 810 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=526, Invalid=3014, Unknown=0, NotChecked=0, Total=3540 [2021-11-09 09:10:57,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3155 states. [2021-11-09 09:10:57,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3155 to 800. [2021-11-09 09:10:57,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 800 states, 784 states have (on average 1.346938775510204) internal successors, (1056), 799 states have internal predecessors, (1056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:10:57,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 800 states to 800 states and 1056 transitions. [2021-11-09 09:10:57,964 INFO L78 Accepts]: Start accepts. Automaton has 800 states and 1056 transitions. Word has length 83 [2021-11-09 09:10:57,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:10:57,964 INFO L470 AbstractCegarLoop]: Abstraction has 800 states and 1056 transitions. [2021-11-09 09:10:57,964 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 2.8620689655172415) internal successors, (83), 29 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:10:57,964 INFO L276 IsEmpty]: Start isEmpty. Operand 800 states and 1056 transitions. [2021-11-09 09:10:57,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-09 09:10:57,965 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:10:57,965 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:10:57,965 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-11-09 09:10:57,965 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-09 09:10:57,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:10:57,966 INFO L85 PathProgramCache]: Analyzing trace with hash 70638878, now seen corresponding path program 1 times [2021-11-09 09:10:57,966 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:10:57,966 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035059641] [2021-11-09 09:10:57,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:10:57,967 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:10:57,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:10:59,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:10:59,238 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:10:59,238 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035059641] [2021-11-09 09:10:59,239 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035059641] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:10:59,239 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:10:59,239 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-11-09 09:10:59,239 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295707899] [2021-11-09 09:10:59,240 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-11-09 09:10:59,240 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:10:59,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-11-09 09:10:59,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=685, Unknown=0, NotChecked=0, Total=756 [2021-11-09 09:10:59,241 INFO L87 Difference]: Start difference. First operand 800 states and 1056 transitions. Second operand has 28 states, 28 states have (on average 2.9642857142857144) internal successors, (83), 28 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:11:10,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:11:10,548 INFO L93 Difference]: Finished difference Result 3450 states and 4790 transitions. [2021-11-09 09:11:10,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-11-09 09:11:10,549 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 2.9642857142857144) internal successors, (83), 28 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2021-11-09 09:11:10,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:11:10,552 INFO L225 Difference]: With dead ends: 3450 [2021-11-09 09:11:10,552 INFO L226 Difference]: Without dead ends: 3193 [2021-11-09 09:11:10,554 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 463 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=508, Invalid=2462, Unknown=0, NotChecked=0, Total=2970 [2021-11-09 09:11:10,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3193 states. [2021-11-09 09:11:10,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3193 to 799. [2021-11-09 09:11:10,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 799 states, 783 states have (on average 1.3448275862068966) internal successors, (1053), 798 states have internal predecessors, (1053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:11:10,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 799 states to 799 states and 1053 transitions. [2021-11-09 09:11:10,879 INFO L78 Accepts]: Start accepts. Automaton has 799 states and 1053 transitions. Word has length 83 [2021-11-09 09:11:10,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:11:10,879 INFO L470 AbstractCegarLoop]: Abstraction has 799 states and 1053 transitions. [2021-11-09 09:11:10,879 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 2.9642857142857144) internal successors, (83), 28 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:11:10,879 INFO L276 IsEmpty]: Start isEmpty. Operand 799 states and 1053 transitions. [2021-11-09 09:11:10,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-09 09:11:10,880 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:11:10,880 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:11:10,881 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-11-09 09:11:10,881 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-09 09:11:10,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:11:10,881 INFO L85 PathProgramCache]: Analyzing trace with hash -1403952320, now seen corresponding path program 1 times [2021-11-09 09:11:10,881 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:11:10,881 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938636334] [2021-11-09 09:11:10,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:11:10,881 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:11:10,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:11:12,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:11:12,219 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:11:12,220 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938636334] [2021-11-09 09:11:12,220 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938636334] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:11:12,220 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:11:12,220 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2021-11-09 09:11:12,220 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767064877] [2021-11-09 09:11:12,221 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-11-09 09:11:12,221 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:11:12,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-11-09 09:11:12,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=729, Unknown=0, NotChecked=0, Total=812 [2021-11-09 09:11:12,222 INFO L87 Difference]: Start difference. First operand 799 states and 1053 transitions. Second operand has 29 states, 29 states have (on average 2.8620689655172415) internal successors, (83), 29 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:11:24,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:11:24,814 INFO L93 Difference]: Finished difference Result 3486 states and 4814 transitions. [2021-11-09 09:11:24,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-11-09 09:11:24,815 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 2.8620689655172415) internal successors, (83), 29 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2021-11-09 09:11:24,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:11:24,818 INFO L225 Difference]: With dead ends: 3486 [2021-11-09 09:11:24,818 INFO L226 Difference]: Without dead ends: 3233 [2021-11-09 09:11:24,820 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 610 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=720, Invalid=3186, Unknown=0, NotChecked=0, Total=3906 [2021-11-09 09:11:24,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3233 states. [2021-11-09 09:11:25,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3233 to 809. [2021-11-09 09:11:25,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 809 states, 793 states have (on average 1.3430012610340478) internal successors, (1065), 808 states have internal predecessors, (1065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:11:25,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 809 states to 809 states and 1065 transitions. [2021-11-09 09:11:25,154 INFO L78 Accepts]: Start accepts. Automaton has 809 states and 1065 transitions. Word has length 83 [2021-11-09 09:11:25,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:11:25,154 INFO L470 AbstractCegarLoop]: Abstraction has 809 states and 1065 transitions. [2021-11-09 09:11:25,154 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 2.8620689655172415) internal successors, (83), 29 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:11:25,154 INFO L276 IsEmpty]: Start isEmpty. Operand 809 states and 1065 transitions. [2021-11-09 09:11:25,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-09 09:11:25,155 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:11:25,155 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:11:25,155 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-11-09 09:11:25,155 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-09 09:11:25,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:11:25,156 INFO L85 PathProgramCache]: Analyzing trace with hash -793416131, now seen corresponding path program 1 times [2021-11-09 09:11:25,156 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:11:25,156 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697359836] [2021-11-09 09:11:25,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:11:25,156 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:11:25,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:11:26,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:11:26,314 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:11:26,314 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697359836] [2021-11-09 09:11:26,314 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697359836] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:11:26,314 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:11:26,314 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-11-09 09:11:26,315 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890699499] [2021-11-09 09:11:26,315 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-11-09 09:11:26,315 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:11:26,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-11-09 09:11:26,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=673, Unknown=0, NotChecked=0, Total=756 [2021-11-09 09:11:26,316 INFO L87 Difference]: Start difference. First operand 809 states and 1065 transitions. Second operand has 28 states, 28 states have (on average 2.9642857142857144) internal successors, (83), 28 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:11:35,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:11:35,635 INFO L93 Difference]: Finished difference Result 2423 states and 3253 transitions. [2021-11-09 09:11:35,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-11-09 09:11:35,636 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 2.9642857142857144) internal successors, (83), 28 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2021-11-09 09:11:35,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:11:35,638 INFO L225 Difference]: With dead ends: 2423 [2021-11-09 09:11:35,638 INFO L226 Difference]: Without dead ends: 2166 [2021-11-09 09:11:35,639 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 427 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=667, Invalid=2525, Unknown=0, NotChecked=0, Total=3192 [2021-11-09 09:11:35,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2166 states. [2021-11-09 09:11:35,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2166 to 815. [2021-11-09 09:11:35,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 815 states, 799 states have (on average 1.3404255319148937) internal successors, (1071), 814 states have internal predecessors, (1071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:11:35,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 815 states to 815 states and 1071 transitions. [2021-11-09 09:11:35,926 INFO L78 Accepts]: Start accepts. Automaton has 815 states and 1071 transitions. Word has length 83 [2021-11-09 09:11:35,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:11:35,926 INFO L470 AbstractCegarLoop]: Abstraction has 815 states and 1071 transitions. [2021-11-09 09:11:35,927 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 2.9642857142857144) internal successors, (83), 28 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:11:35,927 INFO L276 IsEmpty]: Start isEmpty. Operand 815 states and 1071 transitions. [2021-11-09 09:11:35,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-09 09:11:35,929 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:11:35,929 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:11:35,929 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-11-09 09:11:35,929 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-09 09:11:35,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:11:35,930 INFO L85 PathProgramCache]: Analyzing trace with hash -728677668, now seen corresponding path program 1 times [2021-11-09 09:11:35,930 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:11:35,930 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907211975] [2021-11-09 09:11:35,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:11:35,931 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:11:35,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:11:37,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:11:37,174 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:11:37,174 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907211975] [2021-11-09 09:11:37,174 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907211975] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:11:37,174 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:11:37,174 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2021-11-09 09:11:37,174 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874692533] [2021-11-09 09:11:37,174 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-11-09 09:11:37,174 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:11:37,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-11-09 09:11:37,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=725, Unknown=0, NotChecked=0, Total=812 [2021-11-09 09:11:37,175 INFO L87 Difference]: Start difference. First operand 815 states and 1071 transitions. Second operand has 29 states, 29 states have (on average 2.8620689655172415) internal successors, (83), 29 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:11:48,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:11:48,134 INFO L93 Difference]: Finished difference Result 3450 states and 4787 transitions. [2021-11-09 09:11:48,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-11-09 09:11:48,135 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 2.8620689655172415) internal successors, (83), 29 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2021-11-09 09:11:48,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:11:48,138 INFO L225 Difference]: With dead ends: 3450 [2021-11-09 09:11:48,138 INFO L226 Difference]: Without dead ends: 3197 [2021-11-09 09:11:48,139 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 529 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=703, Invalid=2837, Unknown=0, NotChecked=0, Total=3540 [2021-11-09 09:11:48,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3197 states. [2021-11-09 09:11:48,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3197 to 815. [2021-11-09 09:11:48,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 815 states, 799 states have (on average 1.3379224030037546) internal successors, (1069), 814 states have internal predecessors, (1069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:11:48,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 815 states to 815 states and 1069 transitions. [2021-11-09 09:11:48,443 INFO L78 Accepts]: Start accepts. Automaton has 815 states and 1069 transitions. Word has length 83 [2021-11-09 09:11:48,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:11:48,443 INFO L470 AbstractCegarLoop]: Abstraction has 815 states and 1069 transitions. [2021-11-09 09:11:48,443 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 2.8620689655172415) internal successors, (83), 29 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:11:48,443 INFO L276 IsEmpty]: Start isEmpty. Operand 815 states and 1069 transitions. [2021-11-09 09:11:48,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-09 09:11:48,444 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:11:48,444 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:11:48,444 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-11-09 09:11:48,445 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-09 09:11:48,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:11:48,445 INFO L85 PathProgramCache]: Analyzing trace with hash -119228615, now seen corresponding path program 1 times [2021-11-09 09:11:48,445 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:11:48,445 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274208522] [2021-11-09 09:11:48,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:11:48,446 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:11:48,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:11:49,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:11:49,795 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:11:49,796 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274208522] [2021-11-09 09:11:49,797 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274208522] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:11:49,797 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:11:49,797 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2021-11-09 09:11:49,797 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825599620] [2021-11-09 09:11:49,797 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-11-09 09:11:49,798 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:11:49,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-11-09 09:11:49,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=726, Unknown=0, NotChecked=0, Total=812 [2021-11-09 09:11:49,799 INFO L87 Difference]: Start difference. First operand 815 states and 1069 transitions. Second operand has 29 states, 29 states have (on average 2.8620689655172415) internal successors, (83), 29 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:11:59,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:11:59,004 INFO L93 Difference]: Finished difference Result 2409 states and 3234 transitions. [2021-11-09 09:11:59,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-11-09 09:11:59,005 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 2.8620689655172415) internal successors, (83), 29 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2021-11-09 09:11:59,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:11:59,007 INFO L225 Difference]: With dead ends: 2409 [2021-11-09 09:11:59,007 INFO L226 Difference]: Without dead ends: 2155 [2021-11-09 09:11:59,009 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 521 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=542, Invalid=2538, Unknown=0, NotChecked=0, Total=3080 [2021-11-09 09:11:59,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2155 states. [2021-11-09 09:11:59,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2155 to 835. [2021-11-09 09:11:59,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 835 states, 819 states have (on average 1.336996336996337) internal successors, (1095), 834 states have internal predecessors, (1095), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:11:59,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 835 states to 835 states and 1095 transitions. [2021-11-09 09:11:59,322 INFO L78 Accepts]: Start accepts. Automaton has 835 states and 1095 transitions. Word has length 83 [2021-11-09 09:11:59,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:11:59,322 INFO L470 AbstractCegarLoop]: Abstraction has 835 states and 1095 transitions. [2021-11-09 09:11:59,323 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 2.8620689655172415) internal successors, (83), 29 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:11:59,323 INFO L276 IsEmpty]: Start isEmpty. Operand 835 states and 1095 transitions. [2021-11-09 09:11:59,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-09 09:11:59,324 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:11:59,324 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:11:59,325 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-11-09 09:11:59,325 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-09 09:11:59,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:11:59,325 INFO L85 PathProgramCache]: Analyzing trace with hash -1366575231, now seen corresponding path program 1 times [2021-11-09 09:11:59,325 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:11:59,325 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550824247] [2021-11-09 09:11:59,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:11:59,326 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:11:59,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:12:00,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:12:00,604 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:12:00,604 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550824247] [2021-11-09 09:12:00,604 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550824247] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:12:00,604 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:12:00,604 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2021-11-09 09:12:00,604 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589851384] [2021-11-09 09:12:00,605 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-11-09 09:12:00,605 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:12:00,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-11-09 09:12:00,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=727, Unknown=0, NotChecked=0, Total=812 [2021-11-09 09:12:00,606 INFO L87 Difference]: Start difference. First operand 835 states and 1095 transitions. Second operand has 29 states, 29 states have (on average 2.8620689655172415) internal successors, (83), 29 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:12:14,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:12:14,069 INFO L93 Difference]: Finished difference Result 5174 states and 7337 transitions. [2021-11-09 09:12:14,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-11-09 09:12:14,070 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 2.8620689655172415) internal successors, (83), 29 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2021-11-09 09:12:14,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:12:14,074 INFO L225 Difference]: With dead ends: 5174 [2021-11-09 09:12:14,074 INFO L226 Difference]: Without dead ends: 4923 [2021-11-09 09:12:14,076 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 627 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=520, Invalid=2902, Unknown=0, NotChecked=0, Total=3422 [2021-11-09 09:12:14,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4923 states. [2021-11-09 09:12:14,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4923 to 840. [2021-11-09 09:12:14,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 840 states, 824 states have (on average 1.337378640776699) internal successors, (1102), 839 states have internal predecessors, (1102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:12:14,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 840 states to 840 states and 1102 transitions. [2021-11-09 09:12:14,471 INFO L78 Accepts]: Start accepts. Automaton has 840 states and 1102 transitions. Word has length 83 [2021-11-09 09:12:14,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:12:14,471 INFO L470 AbstractCegarLoop]: Abstraction has 840 states and 1102 transitions. [2021-11-09 09:12:14,471 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 2.8620689655172415) internal successors, (83), 29 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:12:14,471 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states and 1102 transitions. [2021-11-09 09:12:14,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-09 09:12:14,472 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:12:14,472 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:12:14,472 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-11-09 09:12:14,473 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-09 09:12:14,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:12:14,473 INFO L85 PathProgramCache]: Analyzing trace with hash -1899745763, now seen corresponding path program 1 times [2021-11-09 09:12:14,473 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:12:14,473 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115663066] [2021-11-09 09:12:14,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:12:14,473 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:12:14,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:12:15,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:12:15,512 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:12:15,512 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115663066] [2021-11-09 09:12:15,512 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115663066] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:12:15,512 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:12:15,512 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-11-09 09:12:15,512 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574901048] [2021-11-09 09:12:15,512 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-11-09 09:12:15,512 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:12:15,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-11-09 09:12:15,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=671, Unknown=0, NotChecked=0, Total=756 [2021-11-09 09:12:15,513 INFO L87 Difference]: Start difference. First operand 840 states and 1102 transitions. Second operand has 28 states, 28 states have (on average 2.9642857142857144) internal successors, (83), 28 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:12:25,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:12:25,757 INFO L93 Difference]: Finished difference Result 3451 states and 4778 transitions. [2021-11-09 09:12:25,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-11-09 09:12:25,758 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 2.9642857142857144) internal successors, (83), 28 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2021-11-09 09:12:25,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:12:25,762 INFO L225 Difference]: With dead ends: 3451 [2021-11-09 09:12:25,762 INFO L226 Difference]: Without dead ends: 3195 [2021-11-09 09:12:25,765 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 500 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=464, Invalid=2398, Unknown=0, NotChecked=0, Total=2862 [2021-11-09 09:12:25,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3195 states. [2021-11-09 09:12:26,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3195 to 840. [2021-11-09 09:12:26,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 840 states, 824 states have (on average 1.3361650485436893) internal successors, (1101), 839 states have internal predecessors, (1101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:12:26,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 840 states to 840 states and 1101 transitions. [2021-11-09 09:12:26,194 INFO L78 Accepts]: Start accepts. Automaton has 840 states and 1101 transitions. Word has length 83 [2021-11-09 09:12:26,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:12:26,194 INFO L470 AbstractCegarLoop]: Abstraction has 840 states and 1101 transitions. [2021-11-09 09:12:26,194 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 2.9642857142857144) internal successors, (83), 28 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:12:26,195 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states and 1101 transitions. [2021-11-09 09:12:26,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-09 09:12:26,196 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:12:26,196 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:12:26,196 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-11-09 09:12:26,196 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-09 09:12:26,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:12:26,196 INFO L85 PathProgramCache]: Analyzing trace with hash 2051820758, now seen corresponding path program 1 times [2021-11-09 09:12:26,197 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:12:26,197 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775638566] [2021-11-09 09:12:26,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:12:26,197 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:12:26,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:12:27,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:12:27,166 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:12:27,166 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775638566] [2021-11-09 09:12:27,166 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775638566] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:12:27,166 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:12:27,167 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-11-09 09:12:27,167 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548745956] [2021-11-09 09:12:27,170 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-11-09 09:12:27,171 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:12:27,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-11-09 09:12:27,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=675, Unknown=0, NotChecked=0, Total=756 [2021-11-09 09:12:27,174 INFO L87 Difference]: Start difference. First operand 840 states and 1101 transitions. Second operand has 28 states, 28 states have (on average 2.9642857142857144) internal successors, (83), 28 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:12:35,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:12:35,617 INFO L93 Difference]: Finished difference Result 2698 states and 3632 transitions. [2021-11-09 09:12:35,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-11-09 09:12:35,618 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 2.9642857142857144) internal successors, (83), 28 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2021-11-09 09:12:35,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:12:35,620 INFO L225 Difference]: With dead ends: 2698 [2021-11-09 09:12:35,620 INFO L226 Difference]: Without dead ends: 2444 [2021-11-09 09:12:35,621 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 395 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=408, Invalid=2042, Unknown=0, NotChecked=0, Total=2450 [2021-11-09 09:12:35,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2444 states. [2021-11-09 09:12:35,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2444 to 850. [2021-11-09 09:12:35,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 850 states, 834 states have (on average 1.3381294964028776) internal successors, (1116), 849 states have internal predecessors, (1116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:12:35,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 850 states to 850 states and 1116 transitions. [2021-11-09 09:12:35,965 INFO L78 Accepts]: Start accepts. Automaton has 850 states and 1116 transitions. Word has length 83 [2021-11-09 09:12:35,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:12:35,965 INFO L470 AbstractCegarLoop]: Abstraction has 850 states and 1116 transitions. [2021-11-09 09:12:35,965 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 2.9642857142857144) internal successors, (83), 28 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:12:35,966 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states and 1116 transitions. [2021-11-09 09:12:35,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-09 09:12:35,967 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:12:35,967 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:12:35,967 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-11-09 09:12:35,967 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-09 09:12:35,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:12:35,968 INFO L85 PathProgramCache]: Analyzing trace with hash 1787055611, now seen corresponding path program 1 times [2021-11-09 09:12:35,968 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:12:35,968 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534136714] [2021-11-09 09:12:35,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:12:35,969 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:12:35,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:12:37,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:12:37,226 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:12:37,226 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534136714] [2021-11-09 09:12:37,226 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534136714] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:12:37,226 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:12:37,226 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-11-09 09:12:37,227 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886468091] [2021-11-09 09:12:37,227 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-11-09 09:12:37,227 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:12:37,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-11-09 09:12:37,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=670, Unknown=0, NotChecked=0, Total=756 [2021-11-09 09:12:37,228 INFO L87 Difference]: Start difference. First operand 850 states and 1116 transitions. Second operand has 28 states, 28 states have (on average 2.9642857142857144) internal successors, (83), 28 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:12:46,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:12:46,148 INFO L93 Difference]: Finished difference Result 2455 states and 3269 transitions. [2021-11-09 09:12:46,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-11-09 09:12:46,148 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 2.9642857142857144) internal successors, (83), 28 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2021-11-09 09:12:46,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:12:46,152 INFO L225 Difference]: With dead ends: 2455 [2021-11-09 09:12:46,152 INFO L226 Difference]: Without dead ends: 2451 [2021-11-09 09:12:46,153 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 443 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=432, Invalid=2118, Unknown=0, NotChecked=0, Total=2550 [2021-11-09 09:12:46,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2451 states. [2021-11-09 09:12:46,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2451 to 865. [2021-11-09 09:12:46,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 865 states, 849 states have (on average 1.3380447585394581) internal successors, (1136), 864 states have internal predecessors, (1136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:12:46,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 865 states to 865 states and 1136 transitions. [2021-11-09 09:12:46,585 INFO L78 Accepts]: Start accepts. Automaton has 865 states and 1136 transitions. Word has length 83 [2021-11-09 09:12:46,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:12:46,585 INFO L470 AbstractCegarLoop]: Abstraction has 865 states and 1136 transitions. [2021-11-09 09:12:46,585 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 2.9642857142857144) internal successors, (83), 28 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:12:46,585 INFO L276 IsEmpty]: Start isEmpty. Operand 865 states and 1136 transitions. [2021-11-09 09:12:46,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-09 09:12:46,586 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:12:46,586 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:12:46,586 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-11-09 09:12:46,587 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-09 09:12:46,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:12:46,587 INFO L85 PathProgramCache]: Analyzing trace with hash 6538463, now seen corresponding path program 1 times [2021-11-09 09:12:46,587 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:12:46,587 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442719809] [2021-11-09 09:12:46,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:12:46,588 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:12:46,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:12:47,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:12:47,949 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:12:47,949 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442719809] [2021-11-09 09:12:47,949 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442719809] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:12:47,949 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:12:47,949 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-11-09 09:12:47,950 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964773285] [2021-11-09 09:12:47,950 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-11-09 09:12:47,950 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:12:47,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-11-09 09:12:47,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2021-11-09 09:12:47,951 INFO L87 Difference]: Start difference. First operand 865 states and 1136 transitions. Second operand has 28 states, 28 states have (on average 2.9642857142857144) internal successors, (83), 28 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:12:58,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:12:58,095 INFO L93 Difference]: Finished difference Result 2472 states and 3315 transitions. [2021-11-09 09:12:58,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-11-09 09:12:58,096 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 2.9642857142857144) internal successors, (83), 28 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2021-11-09 09:12:58,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:12:58,098 INFO L225 Difference]: With dead ends: 2472 [2021-11-09 09:12:58,098 INFO L226 Difference]: Without dead ends: 2215 [2021-11-09 09:12:58,099 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 493 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=524, Invalid=2556, Unknown=0, NotChecked=0, Total=3080 [2021-11-09 09:12:58,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2215 states. [2021-11-09 09:12:58,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2215 to 870. [2021-11-09 09:12:58,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 870 states, 854 states have (on average 1.3372365339578454) internal successors, (1142), 869 states have internal predecessors, (1142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:12:58,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 870 states to 870 states and 1142 transitions. [2021-11-09 09:12:58,509 INFO L78 Accepts]: Start accepts. Automaton has 870 states and 1142 transitions. Word has length 83 [2021-11-09 09:12:58,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:12:58,510 INFO L470 AbstractCegarLoop]: Abstraction has 870 states and 1142 transitions. [2021-11-09 09:12:58,510 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 2.9642857142857144) internal successors, (83), 28 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:12:58,510 INFO L276 IsEmpty]: Start isEmpty. Operand 870 states and 1142 transitions. [2021-11-09 09:12:58,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-09 09:12:58,512 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:12:58,512 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:12:58,513 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-11-09 09:12:58,513 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-09 09:12:58,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:12:58,513 INFO L85 PathProgramCache]: Analyzing trace with hash -440390878, now seen corresponding path program 1 times [2021-11-09 09:12:58,514 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:12:58,514 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311103691] [2021-11-09 09:12:58,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:12:58,514 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:12:58,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:12:59,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:12:59,873 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:12:59,873 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311103691] [2021-11-09 09:12:59,873 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311103691] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:12:59,874 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:12:59,874 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2021-11-09 09:12:59,874 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418142686] [2021-11-09 09:12:59,874 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-11-09 09:12:59,876 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:12:59,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-11-09 09:12:59,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=722, Unknown=0, NotChecked=0, Total=812 [2021-11-09 09:12:59,878 INFO L87 Difference]: Start difference. First operand 870 states and 1142 transitions. Second operand has 29 states, 29 states have (on average 2.8620689655172415) internal successors, (83), 29 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:13:12,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:13:12,182 INFO L93 Difference]: Finished difference Result 3462 states and 4797 transitions. [2021-11-09 09:13:12,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-11-09 09:13:12,183 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 2.8620689655172415) internal successors, (83), 29 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2021-11-09 09:13:12,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:13:12,187 INFO L225 Difference]: With dead ends: 3462 [2021-11-09 09:13:12,187 INFO L226 Difference]: Without dead ends: 3209 [2021-11-09 09:13:12,189 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 678 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=534, Invalid=2888, Unknown=0, NotChecked=0, Total=3422 [2021-11-09 09:13:12,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3209 states. [2021-11-09 09:13:12,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3209 to 879. [2021-11-09 09:13:12,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 879 states, 863 states have (on average 1.3371958285052143) internal successors, (1154), 878 states have internal predecessors, (1154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:13:12,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 879 states to 879 states and 1154 transitions. [2021-11-09 09:13:12,591 INFO L78 Accepts]: Start accepts. Automaton has 879 states and 1154 transitions. Word has length 83 [2021-11-09 09:13:12,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:13:12,591 INFO L470 AbstractCegarLoop]: Abstraction has 879 states and 1154 transitions. [2021-11-09 09:13:12,592 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 2.8620689655172415) internal successors, (83), 29 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:13:12,592 INFO L276 IsEmpty]: Start isEmpty. Operand 879 states and 1154 transitions. [2021-11-09 09:13:12,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-09 09:13:12,593 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:13:12,593 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:13:12,593 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-11-09 09:13:12,593 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-09 09:13:12,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:13:12,594 INFO L85 PathProgramCache]: Analyzing trace with hash 169764992, now seen corresponding path program 1 times [2021-11-09 09:13:12,594 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:13:12,594 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039164853] [2021-11-09 09:13:12,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:13:12,595 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:13:12,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:13:14,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:13:14,038 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:13:14,038 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039164853] [2021-11-09 09:13:14,038 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039164853] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:13:14,038 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:13:14,038 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-11-09 09:13:14,038 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505167376] [2021-11-09 09:13:14,039 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-11-09 09:13:14,039 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:13:14,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-11-09 09:13:14,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2021-11-09 09:13:14,040 INFO L87 Difference]: Start difference. First operand 879 states and 1154 transitions. Second operand has 28 states, 28 states have (on average 2.9642857142857144) internal successors, (83), 28 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:13:24,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:13:24,413 INFO L93 Difference]: Finished difference Result 2512 states and 3368 transitions. [2021-11-09 09:13:24,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-11-09 09:13:24,414 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 2.9642857142857144) internal successors, (83), 28 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2021-11-09 09:13:24,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:13:24,416 INFO L225 Difference]: With dead ends: 2512 [2021-11-09 09:13:24,416 INFO L226 Difference]: Without dead ends: 2255 [2021-11-09 09:13:24,417 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 476 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=496, Invalid=2366, Unknown=0, NotChecked=0, Total=2862 [2021-11-09 09:13:24,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2255 states. [2021-11-09 09:13:24,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2255 to 885. [2021-11-09 09:13:24,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 885 states, 869 states have (on average 1.334867663981588) internal successors, (1160), 884 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:13:24,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 885 states to 885 states and 1160 transitions. [2021-11-09 09:13:24,866 INFO L78 Accepts]: Start accepts. Automaton has 885 states and 1160 transitions. Word has length 83 [2021-11-09 09:13:24,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:13:24,866 INFO L470 AbstractCegarLoop]: Abstraction has 885 states and 1160 transitions. [2021-11-09 09:13:24,867 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 2.9642857142857144) internal successors, (83), 28 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:13:24,867 INFO L276 IsEmpty]: Start isEmpty. Operand 885 states and 1160 transitions. [2021-11-09 09:13:24,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-09 09:13:24,868 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:13:24,868 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:13:24,868 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-11-09 09:13:24,868 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-09 09:13:24,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:13:24,868 INFO L85 PathProgramCache]: Analyzing trace with hash -894466387, now seen corresponding path program 1 times [2021-11-09 09:13:24,868 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:13:24,869 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938582080] [2021-11-09 09:13:24,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:13:24,869 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:13:24,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:13:25,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:13:25,787 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:13:25,787 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938582080] [2021-11-09 09:13:25,788 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938582080] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:13:25,788 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:13:25,788 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-11-09 09:13:25,788 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48089355] [2021-11-09 09:13:25,788 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-09 09:13:25,789 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:13:25,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-09 09:13:25,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2021-11-09 09:13:25,789 INFO L87 Difference]: Start difference. First operand 885 states and 1160 transitions. Second operand has 19 states, 19 states have (on average 4.421052631578948) internal successors, (84), 19 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) [2021-11-09 09:13:31,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:13:31,020 INFO L93 Difference]: Finished difference Result 2345 states and 3244 transitions. [2021-11-09 09:13:31,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-09 09:13:31,021 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.421052631578948) internal successors, (84), 19 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 [2021-11-09 09:13:31,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:13:31,023 INFO L225 Difference]: With dead ends: 2345 [2021-11-09 09:13:31,023 INFO L226 Difference]: Without dead ends: 2056 [2021-11-09 09:13:31,024 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=266, Invalid=1066, Unknown=0, NotChecked=0, Total=1332 [2021-11-09 09:13:31,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2056 states. [2021-11-09 09:13:31,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2056 to 853. [2021-11-09 09:13:31,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 853 states, 837 states have (on average 1.3309438470728794) internal successors, (1114), 852 states have internal predecessors, (1114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:13:31,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 853 states to 853 states and 1114 transitions. [2021-11-09 09:13:31,451 INFO L78 Accepts]: Start accepts. Automaton has 853 states and 1114 transitions. Word has length 84 [2021-11-09 09:13:31,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:13:31,451 INFO L470 AbstractCegarLoop]: Abstraction has 853 states and 1114 transitions. [2021-11-09 09:13:31,452 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 4.421052631578948) internal successors, (84), 19 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) [2021-11-09 09:13:31,452 INFO L276 IsEmpty]: Start isEmpty. Operand 853 states and 1114 transitions. [2021-11-09 09:13:31,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-09 09:13:31,453 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:13:31,453 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:13:31,453 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-11-09 09:13:31,454 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-09 09:13:31,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:13:31,454 INFO L85 PathProgramCache]: Analyzing trace with hash 1276582986, now seen corresponding path program 1 times [2021-11-09 09:13:31,454 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:13:31,454 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293029496] [2021-11-09 09:13:31,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:13:31,455 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:13:31,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:13:32,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:13:32,464 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:13:32,464 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293029496] [2021-11-09 09:13:32,464 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293029496] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:13:32,464 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:13:32,464 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-11-09 09:13:32,464 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708627463] [2021-11-09 09:13:32,465 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-11-09 09:13:32,465 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:13:32,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-11-09 09:13:32,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=334, Unknown=0, NotChecked=0, Total=380 [2021-11-09 09:13:32,466 INFO L87 Difference]: Start difference. First operand 853 states and 1114 transitions. Second operand has 20 states, 20 states have (on average 4.2) internal successors, (84), 20 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) [2021-11-09 09:13:38,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:13:38,407 INFO L93 Difference]: Finished difference Result 2560 states and 3543 transitions. [2021-11-09 09:13:38,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-09 09:13:38,408 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 4.2) internal successors, (84), 20 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 [2021-11-09 09:13:38,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:13:38,410 INFO L225 Difference]: With dead ends: 2560 [2021-11-09 09:13:38,410 INFO L226 Difference]: Without dead ends: 2290 [2021-11-09 09:13:38,411 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=286, Invalid=1196, Unknown=0, NotChecked=0, Total=1482 [2021-11-09 09:13:38,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2290 states. [2021-11-09 09:13:38,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2290 to 844. [2021-11-09 09:13:38,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 844 states, 828 states have (on average 1.3297101449275361) internal successors, (1101), 843 states have internal predecessors, (1101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:13:38,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1101 transitions. [2021-11-09 09:13:38,880 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1101 transitions. Word has length 84 [2021-11-09 09:13:38,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:13:38,880 INFO L470 AbstractCegarLoop]: Abstraction has 844 states and 1101 transitions. [2021-11-09 09:13:38,880 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 4.2) internal successors, (84), 20 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) [2021-11-09 09:13:38,880 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1101 transitions. [2021-11-09 09:13:38,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-09 09:13:38,881 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:13:38,881 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:13:38,881 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-11-09 09:13:38,881 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-09 09:13:38,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:13:38,882 INFO L85 PathProgramCache]: Analyzing trace with hash 1011817839, now seen corresponding path program 1 times [2021-11-09 09:13:38,882 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:13:38,882 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685423413] [2021-11-09 09:13:38,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:13:38,882 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:13:38,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:13:39,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:13:39,331 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:13:39,332 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685423413] [2021-11-09 09:13:39,332 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685423413] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:13:39,332 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:13:39,332 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-09 09:13:39,332 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409805438] [2021-11-09 09:13:39,332 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-09 09:13:39,333 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:13:39,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-09 09:13:39,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-11-09 09:13:39,333 INFO L87 Difference]: Start difference. First operand 844 states and 1101 transitions. Second operand has 13 states, 13 states have (on average 6.461538461538462) internal successors, (84), 13 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) [2021-11-09 09:13:41,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:13:41,932 INFO L93 Difference]: Finished difference Result 2584 states and 3622 transitions. [2021-11-09 09:13:41,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-09 09:13:41,933 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.461538461538462) internal successors, (84), 13 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 [2021-11-09 09:13:41,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:13:41,935 INFO L225 Difference]: With dead ends: 2584 [2021-11-09 09:13:41,935 INFO L226 Difference]: Without dead ends: 2264 [2021-11-09 09:13:41,936 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=97, Invalid=365, Unknown=0, NotChecked=0, Total=462 [2021-11-09 09:13:41,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2264 states. [2021-11-09 09:13:42,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2264 to 825. [2021-11-09 09:13:42,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 825 states, 809 states have (on average 1.3263288009888752) internal successors, (1073), 824 states have internal predecessors, (1073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:13:42,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 825 states to 825 states and 1073 transitions. [2021-11-09 09:13:42,352 INFO L78 Accepts]: Start accepts. Automaton has 825 states and 1073 transitions. Word has length 84 [2021-11-09 09:13:42,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:13:42,352 INFO L470 AbstractCegarLoop]: Abstraction has 825 states and 1073 transitions. [2021-11-09 09:13:42,353 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.461538461538462) internal successors, (84), 13 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) [2021-11-09 09:13:42,353 INFO L276 IsEmpty]: Start isEmpty. Operand 825 states and 1073 transitions. [2021-11-09 09:13:42,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-09 09:13:42,354 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:13:42,354 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:13:42,354 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2021-11-09 09:13:42,354 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-09 09:13:42,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:13:42,354 INFO L85 PathProgramCache]: Analyzing trace with hash 1501718143, now seen corresponding path program 1 times [2021-11-09 09:13:42,355 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:13:42,355 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560302528] [2021-11-09 09:13:42,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:13:42,355 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:13:42,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:13:42,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:13:42,493 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:13:42,493 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560302528] [2021-11-09 09:13:42,493 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560302528] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:13:42,493 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:13:42,494 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-09 09:13:42,494 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624458956] [2021-11-09 09:13:42,494 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-09 09:13:42,494 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:13:42,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-09 09:13:42,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-09 09:13:42,495 INFO L87 Difference]: Start difference. First operand 825 states and 1073 transitions. Second operand has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 8 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) [2021-11-09 09:13:44,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:13:44,581 INFO L93 Difference]: Finished difference Result 1402 states and 1887 transitions. [2021-11-09 09:13:44,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-09 09:13:44,582 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 8 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 [2021-11-09 09:13:44,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:13:44,583 INFO L225 Difference]: With dead ends: 1402 [2021-11-09 09:13:44,583 INFO L226 Difference]: Without dead ends: 1395 [2021-11-09 09:13:44,584 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2021-11-09 09:13:44,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1395 states. [2021-11-09 09:13:45,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1395 to 825. [2021-11-09 09:13:45,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 825 states, 809 states have (on average 1.3201483312731768) internal successors, (1068), 824 states have internal predecessors, (1068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:13:45,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 825 states to 825 states and 1068 transitions. [2021-11-09 09:13:45,063 INFO L78 Accepts]: Start accepts. Automaton has 825 states and 1068 transitions. Word has length 84 [2021-11-09 09:13:45,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:13:45,063 INFO L470 AbstractCegarLoop]: Abstraction has 825 states and 1068 transitions. [2021-11-09 09:13:45,064 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 8 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) [2021-11-09 09:13:45,064 INFO L276 IsEmpty]: Start isEmpty. Operand 825 states and 1068 transitions. [2021-11-09 09:13:45,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-09 09:13:45,065 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:13:45,065 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:13:45,065 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-11-09 09:13:45,066 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-09 09:13:45,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:13:45,066 INFO L85 PathProgramCache]: Analyzing trace with hash 962307331, now seen corresponding path program 1 times [2021-11-09 09:13:45,066 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:13:45,066 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618137109] [2021-11-09 09:13:45,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:13:45,066 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:13:45,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:13:45,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:13:45,487 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:13:45,487 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618137109] [2021-11-09 09:13:45,487 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618137109] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:13:45,487 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:13:45,487 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-09 09:13:45,487 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746511786] [2021-11-09 09:13:45,488 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-09 09:13:45,488 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:13:45,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-09 09:13:45,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-11-09 09:13:45,489 INFO L87 Difference]: Start difference. First operand 825 states and 1068 transitions. Second operand has 12 states, 12 states have (on average 7.0) internal successors, (84), 12 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) [2021-11-09 09:13:47,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:13:47,852 INFO L93 Difference]: Finished difference Result 1804 states and 2446 transitions. [2021-11-09 09:13:47,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-09 09:13:47,852 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.0) internal successors, (84), 12 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 [2021-11-09 09:13:47,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:13:47,854 INFO L225 Difference]: With dead ends: 1804 [2021-11-09 09:13:47,854 INFO L226 Difference]: Without dead ends: 1536 [2021-11-09 09:13:47,855 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2021-11-09 09:13:47,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1536 states. [2021-11-09 09:13:48,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1536 to 817. [2021-11-09 09:13:48,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 817 states, 801 states have (on average 1.317103620474407) internal successors, (1055), 816 states have internal predecessors, (1055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:13:48,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 817 states to 817 states and 1055 transitions. [2021-11-09 09:13:48,359 INFO L78 Accepts]: Start accepts. Automaton has 817 states and 1055 transitions. Word has length 84 [2021-11-09 09:13:48,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:13:48,359 INFO L470 AbstractCegarLoop]: Abstraction has 817 states and 1055 transitions. [2021-11-09 09:13:48,359 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.0) internal successors, (84), 12 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) [2021-11-09 09:13:48,359 INFO L276 IsEmpty]: Start isEmpty. Operand 817 states and 1055 transitions. [2021-11-09 09:13:48,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-09 09:13:48,360 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:13:48,360 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:13:48,360 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2021-11-09 09:13:48,361 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-09 09:13:48,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:13:48,361 INFO L85 PathProgramCache]: Analyzing trace with hash 1125323963, now seen corresponding path program 1 times [2021-11-09 09:13:48,361 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:13:48,361 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303039198] [2021-11-09 09:13:48,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:13:48,361 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:13:48,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:13:49,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:13:49,211 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:13:49,211 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303039198] [2021-11-09 09:13:49,211 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303039198] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:13:49,211 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:13:49,211 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-11-09 09:13:49,211 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617846498] [2021-11-09 09:13:49,211 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-09 09:13:49,212 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:13:49,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-09 09:13:49,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2021-11-09 09:13:49,213 INFO L87 Difference]: Start difference. First operand 817 states and 1055 transitions. Second operand has 19 states, 19 states have (on average 4.421052631578948) internal successors, (84), 19 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) [2021-11-09 09:13:54,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:13:54,348 INFO L93 Difference]: Finished difference Result 2716 states and 3760 transitions. [2021-11-09 09:13:54,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-09 09:13:54,349 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.421052631578948) internal successors, (84), 19 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 [2021-11-09 09:13:54,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:13:54,351 INFO L225 Difference]: With dead ends: 2716 [2021-11-09 09:13:54,351 INFO L226 Difference]: Without dead ends: 2402 [2021-11-09 09:13:54,351 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=307, Invalid=1025, Unknown=0, NotChecked=0, Total=1332 [2021-11-09 09:13:54,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2402 states. [2021-11-09 09:13:54,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2402 to 773. [2021-11-09 09:13:54,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 773 states, 757 states have (on average 1.323645970937913) internal successors, (1002), 772 states have internal predecessors, (1002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:13:54,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 773 states to 773 states and 1002 transitions. [2021-11-09 09:13:54,811 INFO L78 Accepts]: Start accepts. Automaton has 773 states and 1002 transitions. Word has length 84 [2021-11-09 09:13:54,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:13:54,811 INFO L470 AbstractCegarLoop]: Abstraction has 773 states and 1002 transitions. [2021-11-09 09:13:54,811 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 4.421052631578948) internal successors, (84), 19 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) [2021-11-09 09:13:54,811 INFO L276 IsEmpty]: Start isEmpty. Operand 773 states and 1002 transitions. [2021-11-09 09:13:54,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-09 09:13:54,812 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:13:54,812 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:13:54,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2021-11-09 09:13:54,812 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-09 09:13:54,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:13:54,813 INFO L85 PathProgramCache]: Analyzing trace with hash -1417366327, now seen corresponding path program 1 times [2021-11-09 09:13:54,813 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:13:54,813 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960245513] [2021-11-09 09:13:54,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:13:54,813 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:13:54,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:13:55,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:13:55,369 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:13:55,370 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960245513] [2021-11-09 09:13:55,370 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960245513] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:13:55,370 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:13:55,370 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-11-09 09:13:55,370 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384616318] [2021-11-09 09:13:55,370 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-09 09:13:55,371 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:13:55,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-09 09:13:55,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2021-11-09 09:13:55,371 INFO L87 Difference]: Start difference. First operand 773 states and 1002 transitions. Second operand has 15 states, 15 states have (on average 5.6) internal successors, (84), 15 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) [2021-11-09 09:13:59,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:13:59,003 INFO L93 Difference]: Finished difference Result 2539 states and 3541 transitions. [2021-11-09 09:13:59,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-09 09:13:59,004 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.6) internal successors, (84), 15 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 [2021-11-09 09:13:59,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:13:59,006 INFO L225 Difference]: With dead ends: 2539 [2021-11-09 09:13:59,006 INFO L226 Difference]: Without dead ends: 2161 [2021-11-09 09:13:59,007 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=192, Invalid=564, Unknown=0, NotChecked=0, Total=756 [2021-11-09 09:13:59,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2161 states. [2021-11-09 09:13:59,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2161 to 657. [2021-11-09 09:13:59,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 657 states, 642 states have (on average 1.3364485981308412) internal successors, (858), 656 states have internal predecessors, (858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:13:59,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 858 transitions. [2021-11-09 09:13:59,461 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 858 transitions. Word has length 84 [2021-11-09 09:13:59,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:13:59,461 INFO L470 AbstractCegarLoop]: Abstraction has 657 states and 858 transitions. [2021-11-09 09:13:59,461 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.6) internal successors, (84), 15 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) [2021-11-09 09:13:59,461 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 858 transitions. [2021-11-09 09:13:59,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-09 09:13:59,462 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:13:59,462 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:13:59,463 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2021-11-09 09:13:59,463 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-09 09:13:59,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:13:59,463 INFO L85 PathProgramCache]: Analyzing trace with hash 1170352801, now seen corresponding path program 1 times [2021-11-09 09:13:59,463 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:13:59,463 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523982329] [2021-11-09 09:13:59,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:13:59,463 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:13:59,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:13:59,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:13:59,799 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:13:59,799 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523982329] [2021-11-09 09:13:59,799 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523982329] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:13:59,800 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:13:59,800 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-09 09:13:59,800 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749217878] [2021-11-09 09:13:59,800 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-09 09:13:59,800 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:13:59,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-09 09:13:59,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-11-09 09:13:59,801 INFO L87 Difference]: Start difference. First operand 657 states and 858 transitions. Second operand has 10 states, 10 states have (on average 8.4) internal successors, (84), 10 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) [2021-11-09 09:14:01,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:14:01,986 INFO L93 Difference]: Finished difference Result 1940 states and 2669 transitions. [2021-11-09 09:14:01,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-09 09:14:01,986 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.4) internal successors, (84), 10 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 [2021-11-09 09:14:01,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:14:01,988 INFO L225 Difference]: With dead ends: 1940 [2021-11-09 09:14:01,988 INFO L226 Difference]: Without dead ends: 1604 [2021-11-09 09:14:01,989 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2021-11-09 09:14:01,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1604 states. [2021-11-09 09:14:02,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1604 to 571. [2021-11-09 09:14:02,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 571 states, 560 states have (on average 1.3464285714285715) internal successors, (754), 570 states have internal predecessors, (754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:14:02,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 754 transitions. [2021-11-09 09:14:02,414 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 754 transitions. Word has length 84 [2021-11-09 09:14:02,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:14:02,414 INFO L470 AbstractCegarLoop]: Abstraction has 571 states and 754 transitions. [2021-11-09 09:14:02,414 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.4) internal successors, (84), 10 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) [2021-11-09 09:14:02,414 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 754 transitions. [2021-11-09 09:14:02,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-09 09:14:02,415 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:14:02,415 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:14:02,415 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2021-11-09 09:14:02,415 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-09 09:14:02,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:14:02,415 INFO L85 PathProgramCache]: Analyzing trace with hash 960598555, now seen corresponding path program 1 times [2021-11-09 09:14:02,416 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:14:02,416 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114646499] [2021-11-09 09:14:02,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:14:02,416 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:14:02,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:14:03,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:14:03,088 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:14:03,088 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114646499] [2021-11-09 09:14:03,088 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114646499] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:14:03,088 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:14:03,088 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-11-09 09:14:03,089 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024082029] [2021-11-09 09:14:03,089 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-09 09:14:03,089 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:14:03,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-09 09:14:03,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=218, Unknown=0, NotChecked=0, Total=272 [2021-11-09 09:14:03,090 INFO L87 Difference]: Start difference. First operand 571 states and 754 transitions. Second operand has 17 states, 17 states have (on average 4.9411764705882355) internal successors, (84), 17 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) [2021-11-09 09:14:07,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:14:07,196 INFO L93 Difference]: Finished difference Result 2638 states and 3764 transitions. [2021-11-09 09:14:07,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-09 09:14:07,197 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 4.9411764705882355) internal successors, (84), 17 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 [2021-11-09 09:14:07,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:14:07,199 INFO L225 Difference]: With dead ends: 2638 [2021-11-09 09:14:07,199 INFO L226 Difference]: Without dead ends: 2366 [2021-11-09 09:14:07,199 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=168, Invalid=644, Unknown=0, NotChecked=0, Total=812 [2021-11-09 09:14:07,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2366 states. [2021-11-09 09:14:07,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2366 to 565. [2021-11-09 09:14:07,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 565 states, 554 states have (on average 1.3411552346570397) internal successors, (743), 564 states have internal predecessors, (743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:14:07,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 743 transitions. [2021-11-09 09:14:07,582 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 743 transitions. Word has length 84 [2021-11-09 09:14:07,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:14:07,582 INFO L470 AbstractCegarLoop]: Abstraction has 565 states and 743 transitions. [2021-11-09 09:14:07,582 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 4.9411764705882355) internal successors, (84), 17 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) [2021-11-09 09:14:07,582 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 743 transitions. [2021-11-09 09:14:07,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-09 09:14:07,583 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:14:07,583 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:14:07,583 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2021-11-09 09:14:07,583 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-09 09:14:07,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:14:07,584 INFO L85 PathProgramCache]: Analyzing trace with hash 937996927, now seen corresponding path program 1 times [2021-11-09 09:14:07,584 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:14:07,584 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591822806] [2021-11-09 09:14:07,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:14:07,584 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:14:07,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:14:07,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:14:07,896 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:14:07,897 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591822806] [2021-11-09 09:14:07,897 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591822806] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:14:07,897 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:14:07,897 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-09 09:14:07,897 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593340659] [2021-11-09 09:14:07,898 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-09 09:14:07,898 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:14:07,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-09 09:14:07,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-11-09 09:14:07,898 INFO L87 Difference]: Start difference. First operand 565 states and 743 transitions. Second operand has 11 states, 11 states have (on average 7.636363636363637) internal successors, (84), 11 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:14:09,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:14:09,794 INFO L93 Difference]: Finished difference Result 1457 states and 1992 transitions. [2021-11-09 09:14:09,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-09 09:14:09,794 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.636363636363637) internal successors, (84), 11 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2021-11-09 09:14:09,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:14:09,795 INFO L225 Difference]: With dead ends: 1457 [2021-11-09 09:14:09,795 INFO L226 Difference]: Without dead ends: 1199 [2021-11-09 09:14:09,796 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=105, Invalid=315, Unknown=0, NotChecked=0, Total=420 [2021-11-09 09:14:09,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1199 states. [2021-11-09 09:14:10,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1199 to 545. [2021-11-09 09:14:10,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 535 states have (on average 1.3345794392523365) internal successors, (714), 544 states have internal predecessors, (714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:14:10,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 714 transitions. [2021-11-09 09:14:10,210 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 714 transitions. Word has length 84 [2021-11-09 09:14:10,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:14:10,211 INFO L470 AbstractCegarLoop]: Abstraction has 545 states and 714 transitions. [2021-11-09 09:14:10,211 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.636363636363637) internal successors, (84), 11 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:14:10,211 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 714 transitions. [2021-11-09 09:14:10,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-09 09:14:10,211 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:14:10,211 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:14:10,212 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2021-11-09 09:14:10,212 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-09 09:14:10,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:14:10,212 INFO L85 PathProgramCache]: Analyzing trace with hash -1707932206, now seen corresponding path program 1 times [2021-11-09 09:14:10,212 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:14:10,213 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144777051] [2021-11-09 09:14:10,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:14:10,213 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:14:10,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:14:10,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:14:10,384 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:14:10,384 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144777051] [2021-11-09 09:14:10,384 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144777051] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:14:10,384 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:14:10,384 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-09 09:14:10,384 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442177173] [2021-11-09 09:14:10,385 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-09 09:14:10,385 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:14:10,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-09 09:14:10,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-09 09:14:10,385 INFO L87 Difference]: Start difference. First operand 545 states and 714 transitions. Second operand has 11 states, 11 states have (on average 7.636363636363637) internal successors, (84), 10 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) [2021-11-09 09:14:17,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:14:17,399 INFO L93 Difference]: Finished difference Result 3945 states and 5633 transitions. [2021-11-09 09:14:17,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-11-09 09:14:17,400 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.636363636363637) internal successors, (84), 10 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 [2021-11-09 09:14:17,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:14:17,404 INFO L225 Difference]: With dead ends: 3945 [2021-11-09 09:14:17,404 INFO L226 Difference]: Without dead ends: 3665 [2021-11-09 09:14:17,405 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 451 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=374, Invalid=1186, Unknown=0, NotChecked=0, Total=1560 [2021-11-09 09:14:17,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3665 states. [2021-11-09 09:14:17,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3665 to 549. [2021-11-09 09:14:17,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 539 states have (on average 1.3302411873840445) internal successors, (717), 548 states have internal predecessors, (717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:14:17,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 717 transitions. [2021-11-09 09:14:17,988 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 717 transitions. Word has length 84 [2021-11-09 09:14:17,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:14:17,988 INFO L470 AbstractCegarLoop]: Abstraction has 549 states and 717 transitions. [2021-11-09 09:14:17,988 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.636363636363637) internal successors, (84), 10 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) [2021-11-09 09:14:17,988 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 717 transitions. [2021-11-09 09:14:17,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-09 09:14:17,989 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:14:17,989 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:14:17,989 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2021-11-09 09:14:17,989 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-09 09:14:17,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:14:17,990 INFO L85 PathProgramCache]: Analyzing trace with hash -293602119, now seen corresponding path program 1 times [2021-11-09 09:14:17,990 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:14:17,990 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867275261] [2021-11-09 09:14:17,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:14:17,990 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:14:18,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:14:18,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:14:18,521 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:14:18,521 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867275261] [2021-11-09 09:14:18,521 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867275261] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:14:18,521 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:14:18,521 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-11-09 09:14:18,522 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232125227] [2021-11-09 09:14:18,522 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-09 09:14:18,522 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:14:18,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-09 09:14:18,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2021-11-09 09:14:18,523 INFO L87 Difference]: Start difference. First operand 549 states and 717 transitions. Second operand has 15 states, 15 states have (on average 5.6) internal successors, (84), 15 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) [2021-11-09 09:14:24,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:14:24,542 INFO L93 Difference]: Finished difference Result 3209 states and 4631 transitions. [2021-11-09 09:14:24,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-11-09 09:14:24,542 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.6) internal successors, (84), 15 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 [2021-11-09 09:14:24,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:14:24,545 INFO L225 Difference]: With dead ends: 3209 [2021-11-09 09:14:24,546 INFO L226 Difference]: Without dead ends: 2930 [2021-11-09 09:14:24,546 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=206, Invalid=850, Unknown=0, NotChecked=0, Total=1056 [2021-11-09 09:14:24,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2930 states. [2021-11-09 09:14:25,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2930 to 534. [2021-11-09 09:14:25,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 525 states have (on average 1.3276190476190477) internal successors, (697), 533 states have internal predecessors, (697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:14:25,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 697 transitions. [2021-11-09 09:14:25,073 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 697 transitions. Word has length 84 [2021-11-09 09:14:25,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:14:25,073 INFO L470 AbstractCegarLoop]: Abstraction has 534 states and 697 transitions. [2021-11-09 09:14:25,074 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.6) internal successors, (84), 15 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) [2021-11-09 09:14:25,074 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 697 transitions. [2021-11-09 09:14:25,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-09 09:14:25,075 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:14:25,075 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:14:25,076 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2021-11-09 09:14:25,076 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-09 09:14:25,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:14:25,076 INFO L85 PathProgramCache]: Analyzing trace with hash -1170173426, now seen corresponding path program 1 times [2021-11-09 09:14:25,077 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:14:25,077 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562768298] [2021-11-09 09:14:25,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:14:25,077 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:14:25,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:14:26,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:14:26,355 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:14:26,355 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562768298] [2021-11-09 09:14:26,355 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562768298] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:14:26,355 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:14:26,355 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-11-09 09:14:26,355 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091192225] [2021-11-09 09:14:26,356 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-11-09 09:14:26,356 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:14:26,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-11-09 09:14:26,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=407, Unknown=0, NotChecked=0, Total=462 [2021-11-09 09:14:26,357 INFO L87 Difference]: Start difference. First operand 534 states and 697 transitions. Second operand has 22 states, 22 states have (on average 3.8181818181818183) internal successors, (84), 22 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) [2021-11-09 09:14:32,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:14:32,102 INFO L93 Difference]: Finished difference Result 1354 states and 1838 transitions. [2021-11-09 09:14:32,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-11-09 09:14:32,103 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 3.8181818181818183) internal successors, (84), 22 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 [2021-11-09 09:14:32,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:14:32,103 INFO L225 Difference]: With dead ends: 1354 [2021-11-09 09:14:32,104 INFO L226 Difference]: Without dead ends: 1100 [2021-11-09 09:14:32,104 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=311, Invalid=1171, Unknown=0, NotChecked=0, Total=1482 [2021-11-09 09:14:32,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1100 states. [2021-11-09 09:14:32,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1100 to 549. [2021-11-09 09:14:32,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 540 states have (on average 1.3277777777777777) internal successors, (717), 548 states have internal predecessors, (717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:14:32,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 717 transitions. [2021-11-09 09:14:32,585 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 717 transitions. Word has length 84 [2021-11-09 09:14:32,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:14:32,585 INFO L470 AbstractCegarLoop]: Abstraction has 549 states and 717 transitions. [2021-11-09 09:14:32,585 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 3.8181818181818183) internal successors, (84), 22 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) [2021-11-09 09:14:32,585 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 717 transitions. [2021-11-09 09:14:32,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-09 09:14:32,586 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:14:32,586 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:14:32,586 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2021-11-09 09:14:32,587 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-09 09:14:32,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:14:32,588 INFO L85 PathProgramCache]: Analyzing trace with hash 279660116, now seen corresponding path program 1 times [2021-11-09 09:14:32,588 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:14:32,588 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324587207] [2021-11-09 09:14:32,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:14:32,589 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:14:32,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:14:32,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:14:32,818 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:14:32,818 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324587207] [2021-11-09 09:14:32,818 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324587207] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:14:32,818 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:14:32,818 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-09 09:14:32,819 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683790648] [2021-11-09 09:14:32,819 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-09 09:14:32,819 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:14:32,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-09 09:14:32,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-11-09 09:14:32,820 INFO L87 Difference]: Start difference. First operand 549 states and 717 transitions. Second operand has 12 states, 12 states have (on average 7.0) internal successors, (84), 11 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:14:35,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:14:35,338 INFO L93 Difference]: Finished difference Result 1054 states and 1418 transitions. [2021-11-09 09:14:35,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-09 09:14:35,339 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.0) internal successors, (84), 11 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2021-11-09 09:14:35,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:14:35,340 INFO L225 Difference]: With dead ends: 1054 [2021-11-09 09:14:35,341 INFO L226 Difference]: Without dead ends: 1047 [2021-11-09 09:14:35,341 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=243, Invalid=627, Unknown=0, NotChecked=0, Total=870 [2021-11-09 09:14:35,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1047 states. [2021-11-09 09:14:35,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1047 to 553. [2021-11-09 09:14:35,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 544 states have (on average 1.3235294117647058) internal successors, (720), 552 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:14:35,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 720 transitions. [2021-11-09 09:14:35,861 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 720 transitions. Word has length 84 [2021-11-09 09:14:35,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:14:35,862 INFO L470 AbstractCegarLoop]: Abstraction has 553 states and 720 transitions. [2021-11-09 09:14:35,862 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.0) internal successors, (84), 11 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:14:35,862 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 720 transitions. [2021-11-09 09:14:35,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-09 09:14:35,863 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:14:35,863 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:14:35,864 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2021-11-09 09:14:35,864 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-09 09:14:35,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:14:35,865 INFO L85 PathProgramCache]: Analyzing trace with hash -96734064, now seen corresponding path program 1 times [2021-11-09 09:14:35,865 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:14:35,865 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447232160] [2021-11-09 09:14:35,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:14:35,865 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:14:35,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:14:36,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:14:36,214 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:14:36,214 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447232160] [2021-11-09 09:14:36,214 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447232160] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:14:36,215 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:14:36,215 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-09 09:14:36,215 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248889807] [2021-11-09 09:14:36,215 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-09 09:14:36,215 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:14:36,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-09 09:14:36,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-11-09 09:14:36,216 INFO L87 Difference]: Start difference. First operand 553 states and 720 transitions. Second operand has 11 states, 11 states have (on average 7.636363636363637) internal successors, (84), 11 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:14:38,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:14:38,504 INFO L93 Difference]: Finished difference Result 1158 states and 1562 transitions. [2021-11-09 09:14:38,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-09 09:14:38,505 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.636363636363637) internal successors, (84), 11 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2021-11-09 09:14:38,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:14:38,506 INFO L225 Difference]: With dead ends: 1158 [2021-11-09 09:14:38,506 INFO L226 Difference]: Without dead ends: 1154 [2021-11-09 09:14:38,506 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=105, Invalid=315, Unknown=0, NotChecked=0, Total=420 [2021-11-09 09:14:38,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1154 states. [2021-11-09 09:14:39,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1154 to 543. [2021-11-09 09:14:39,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 535 states have (on average 1.325233644859813) internal successors, (709), 542 states have internal predecessors, (709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:14:39,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 709 transitions. [2021-11-09 09:14:39,071 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 709 transitions. Word has length 84 [2021-11-09 09:14:39,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:14:39,072 INFO L470 AbstractCegarLoop]: Abstraction has 543 states and 709 transitions. [2021-11-09 09:14:39,072 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.636363636363637) internal successors, (84), 11 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:14:39,072 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 709 transitions. [2021-11-09 09:14:39,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-09 09:14:39,073 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:14:39,073 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:14:39,073 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2021-11-09 09:14:39,073 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-09 09:14:39,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:14:39,073 INFO L85 PathProgramCache]: Analyzing trace with hash -259750696, now seen corresponding path program 1 times [2021-11-09 09:14:39,074 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:14:39,074 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420985108] [2021-11-09 09:14:39,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:14:39,074 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:14:39,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:14:41,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:14:41,421 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:14:41,421 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420985108] [2021-11-09 09:14:41,421 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420985108] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:14:41,422 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:14:41,422 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-11-09 09:14:41,422 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777969322] [2021-11-09 09:14:41,422 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-11-09 09:14:41,422 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:14:41,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-11-09 09:14:41,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=581, Unknown=0, NotChecked=0, Total=650 [2021-11-09 09:14:41,423 INFO L87 Difference]: Start difference. First operand 543 states and 709 transitions. Second operand has 26 states, 26 states have (on average 3.230769230769231) internal successors, (84), 26 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) [2021-11-09 09:14:50,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:14:50,067 INFO L93 Difference]: Finished difference Result 1296 states and 1778 transitions. [2021-11-09 09:14:50,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-11-09 09:14:50,067 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.230769230769231) internal successors, (84), 26 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 [2021-11-09 09:14:50,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:14:50,069 INFO L225 Difference]: With dead ends: 1296 [2021-11-09 09:14:50,069 INFO L226 Difference]: Without dead ends: 1286 [2021-11-09 09:14:50,069 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 470 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=416, Invalid=2034, Unknown=0, NotChecked=0, Total=2450 [2021-11-09 09:14:50,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1286 states. [2021-11-09 09:14:50,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1286 to 539. [2021-11-09 09:14:50,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 539 states, 531 states have (on average 1.3258003766478343) internal successors, (704), 538 states have internal predecessors, (704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:14:50,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 704 transitions. [2021-11-09 09:14:50,607 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 704 transitions. Word has length 84 [2021-11-09 09:14:50,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:14:50,607 INFO L470 AbstractCegarLoop]: Abstraction has 539 states and 704 transitions. [2021-11-09 09:14:50,608 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.230769230769231) internal successors, (84), 26 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) [2021-11-09 09:14:50,608 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 704 transitions. [2021-11-09 09:14:50,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-09 09:14:50,608 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:14:50,609 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:14:50,609 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2021-11-09 09:14:50,609 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-09 09:14:50,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:14:50,609 INFO L85 PathProgramCache]: Analyzing trace with hash 379623425, now seen corresponding path program 1 times [2021-11-09 09:14:50,609 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:14:50,610 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736690304] [2021-11-09 09:14:50,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:14:50,610 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:14:50,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:14:50,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:14:50,932 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:14:50,932 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736690304] [2021-11-09 09:14:50,933 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736690304] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:14:50,933 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:14:50,933 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-09 09:14:50,933 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160564401] [2021-11-09 09:14:50,933 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-09 09:14:50,934 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:14:50,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-09 09:14:50,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-11-09 09:14:50,934 INFO L87 Difference]: Start difference. First operand 539 states and 704 transitions. Second operand has 12 states, 12 states have (on average 7.0) internal successors, (84), 12 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) [2021-11-09 09:14:53,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:14:53,345 INFO L93 Difference]: Finished difference Result 1658 states and 2330 transitions. [2021-11-09 09:14:53,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-09 09:14:53,346 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.0) internal successors, (84), 12 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 [2021-11-09 09:14:53,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:14:53,347 INFO L225 Difference]: With dead ends: 1658 [2021-11-09 09:14:53,347 INFO L226 Difference]: Without dead ends: 1333 [2021-11-09 09:14:53,348 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=133, Invalid=373, Unknown=0, NotChecked=0, Total=506 [2021-11-09 09:14:53,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1333 states. [2021-11-09 09:14:53,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1333 to 464. [2021-11-09 09:14:53,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 464 states, 459 states have (on average 1.34640522875817) internal successors, (618), 463 states have internal predecessors, (618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:14:53,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 618 transitions. [2021-11-09 09:14:53,838 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 618 transitions. Word has length 84 [2021-11-09 09:14:53,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:14:53,838 INFO L470 AbstractCegarLoop]: Abstraction has 464 states and 618 transitions. [2021-11-09 09:14:53,838 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.0) internal successors, (84), 12 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) [2021-11-09 09:14:53,838 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 618 transitions. [2021-11-09 09:14:53,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-09 09:14:53,839 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:14:53,839 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:14:53,839 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2021-11-09 09:14:53,839 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-09 09:14:53,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:14:53,839 INFO L85 PathProgramCache]: Analyzing trace with hash 567259418, now seen corresponding path program 1 times [2021-11-09 09:14:53,839 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:14:53,840 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533885394] [2021-11-09 09:14:53,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:14:53,840 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:14:53,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:14:54,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:14:54,426 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:14:54,427 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533885394] [2021-11-09 09:14:54,427 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533885394] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:14:54,427 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:14:54,427 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-11-09 09:14:54,427 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179662746] [2021-11-09 09:14:54,427 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-09 09:14:54,428 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:14:54,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-09 09:14:54,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2021-11-09 09:14:54,428 INFO L87 Difference]: Start difference. First operand 464 states and 618 transitions. Second operand has 15 states, 15 states have (on average 5.666666666666667) internal successors, (85), 15 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) [2021-11-09 09:14:58,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:14:58,904 INFO L93 Difference]: Finished difference Result 2062 states and 2967 transitions. [2021-11-09 09:14:58,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-09 09:14:58,904 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.666666666666667) internal successors, (85), 15 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 [2021-11-09 09:14:58,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:14:58,906 INFO L225 Difference]: With dead ends: 2062 [2021-11-09 09:14:58,906 INFO L226 Difference]: Without dead ends: 1792 [2021-11-09 09:14:58,908 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=208, Invalid=662, Unknown=0, NotChecked=0, Total=870 [2021-11-09 09:14:58,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1792 states. [2021-11-09 09:14:59,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1792 to 425. [2021-11-09 09:14:59,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 425 states, 422 states have (on average 1.3483412322274881) internal successors, (569), 424 states have internal predecessors, (569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:14:59,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 569 transitions. [2021-11-09 09:14:59,411 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 569 transitions. Word has length 85 [2021-11-09 09:14:59,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:14:59,411 INFO L470 AbstractCegarLoop]: Abstraction has 425 states and 569 transitions. [2021-11-09 09:14:59,411 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.666666666666667) internal successors, (85), 15 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) [2021-11-09 09:14:59,412 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 569 transitions. [2021-11-09 09:14:59,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-09 09:14:59,412 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:14:59,412 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:14:59,412 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2021-11-09 09:14:59,412 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-09 09:14:59,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:14:59,413 INFO L85 PathProgramCache]: Analyzing trace with hash -1176082131, now seen corresponding path program 1 times [2021-11-09 09:14:59,413 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:14:59,413 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275340443] [2021-11-09 09:14:59,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:14:59,413 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:14:59,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:14:59,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:14:59,540 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:14:59,540 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275340443] [2021-11-09 09:14:59,540 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275340443] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:14:59,540 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:14:59,541 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-09 09:14:59,541 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774991818] [2021-11-09 09:14:59,541 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-09 09:14:59,541 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:14:59,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-09 09:14:59,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-09 09:14:59,542 INFO L87 Difference]: Start difference. First operand 425 states and 569 transitions. Second operand has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:15:00,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:15:00,986 INFO L93 Difference]: Finished difference Result 1025 states and 1433 transitions. [2021-11-09 09:15:00,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-09 09:15:00,987 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2021-11-09 09:15:00,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:15:00,988 INFO L225 Difference]: With dead ends: 1025 [2021-11-09 09:15:00,988 INFO L226 Difference]: Without dead ends: 745 [2021-11-09 09:15:00,989 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=106, Invalid=274, Unknown=0, NotChecked=0, Total=380 [2021-11-09 09:15:00,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 745 states. [2021-11-09 09:15:01,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 745 to 417. [2021-11-09 09:15:01,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 414 states have (on average 1.3502415458937198) internal successors, (559), 416 states have internal predecessors, (559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:15:01,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 559 transitions. [2021-11-09 09:15:01,466 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 559 transitions. Word has length 85 [2021-11-09 09:15:01,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:15:01,466 INFO L470 AbstractCegarLoop]: Abstraction has 417 states and 559 transitions. [2021-11-09 09:15:01,467 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:15:01,467 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 559 transitions. [2021-11-09 09:15:01,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-09 09:15:01,468 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:15:01,468 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:15:01,468 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2021-11-09 09:15:01,468 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-09 09:15:01,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:15:01,469 INFO L85 PathProgramCache]: Analyzing trace with hash -271355459, now seen corresponding path program 1 times [2021-11-09 09:15:01,469 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:15:01,469 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571600073] [2021-11-09 09:15:01,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:15:01,469 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:15:01,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:15:01,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:15:01,618 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:15:01,619 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571600073] [2021-11-09 09:15:01,619 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571600073] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:15:01,619 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:15:01,619 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-09 09:15:01,619 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288967560] [2021-11-09 09:15:01,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-09 09:15:01,620 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:15:01,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-09 09:15:01,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-09 09:15:01,621 INFO L87 Difference]: Start difference. First operand 417 states and 559 transitions. Second operand has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:15:03,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:15:03,269 INFO L93 Difference]: Finished difference Result 809 states and 1133 transitions. [2021-11-09 09:15:03,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-09 09:15:03,269 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2021-11-09 09:15:03,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:15:03,270 INFO L225 Difference]: With dead ends: 809 [2021-11-09 09:15:03,270 INFO L226 Difference]: Without dead ends: 802 [2021-11-09 09:15:03,271 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=267, Unknown=0, NotChecked=0, Total=380 [2021-11-09 09:15:03,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 802 states. [2021-11-09 09:15:03,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 802 to 417. [2021-11-09 09:15:03,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 414 states have (on average 1.3478260869565217) internal successors, (558), 416 states have internal predecessors, (558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:15:03,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 558 transitions. [2021-11-09 09:15:03,749 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 558 transitions. Word has length 85 [2021-11-09 09:15:03,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:15:03,750 INFO L470 AbstractCegarLoop]: Abstraction has 417 states and 558 transitions. [2021-11-09 09:15:03,750 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:15:03,750 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 558 transitions. [2021-11-09 09:15:03,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-09 09:15:03,750 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:15:03,751 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:15:03,751 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2021-11-09 09:15:03,751 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-09 09:15:03,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:15:03,751 INFO L85 PathProgramCache]: Analyzing trace with hash 1161243347, now seen corresponding path program 1 times [2021-11-09 09:15:03,751 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:15:03,751 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241127646] [2021-11-09 09:15:03,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:15:03,752 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:15:03,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:15:04,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:15:04,947 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:15:04,948 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241127646] [2021-11-09 09:15:04,948 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241127646] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:15:04,948 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:15:04,948 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-11-09 09:15:04,948 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213394353] [2021-11-09 09:15:04,948 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-11-09 09:15:04,948 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:15:04,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-11-09 09:15:04,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=665, Unknown=0, NotChecked=0, Total=756 [2021-11-09 09:15:04,949 INFO L87 Difference]: Start difference. First operand 417 states and 558 transitions. Second operand has 28 states, 28 states have (on average 3.0714285714285716) internal successors, (86), 28 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:15:15,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:15:15,374 INFO L93 Difference]: Finished difference Result 4143 states and 6046 transitions. [2021-11-09 09:15:15,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-11-09 09:15:15,374 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 3.0714285714285716) internal successors, (86), 28 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2021-11-09 09:15:15,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:15:15,400 INFO L225 Difference]: With dead ends: 4143 [2021-11-09 09:15:15,400 INFO L226 Difference]: Without dead ends: 4137 [2021-11-09 09:15:15,402 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 578 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=486, Invalid=2484, Unknown=0, NotChecked=0, Total=2970 [2021-11-09 09:15:15,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4137 states. [2021-11-09 09:15:15,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4137 to 438. [2021-11-09 09:15:15,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438 states, 435 states have (on average 1.342528735632184) internal successors, (584), 437 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:15:15,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 584 transitions. [2021-11-09 09:15:15,845 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 584 transitions. Word has length 86 [2021-11-09 09:15:15,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:15:15,846 INFO L470 AbstractCegarLoop]: Abstraction has 438 states and 584 transitions. [2021-11-09 09:15:15,846 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 3.0714285714285716) internal successors, (86), 28 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:15:15,846 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 584 transitions. [2021-11-09 09:15:15,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-09 09:15:15,846 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:15:15,846 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:15:15,847 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2021-11-09 09:15:15,847 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-09 09:15:15,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:15:15,847 INFO L85 PathProgramCache]: Analyzing trace with hash 91928287, now seen corresponding path program 1 times [2021-11-09 09:15:15,847 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:15:15,847 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140113079] [2021-11-09 09:15:15,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:15:15,847 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:15:15,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:15:16,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:15:16,642 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:15:16,643 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140113079] [2021-11-09 09:15:16,643 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140113079] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:15:16,643 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:15:16,643 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-11-09 09:15:16,643 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363777410] [2021-11-09 09:15:16,643 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-11-09 09:15:16,643 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:15:16,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-11-09 09:15:16,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=408, Unknown=0, NotChecked=0, Total=462 [2021-11-09 09:15:16,644 INFO L87 Difference]: Start difference. First operand 438 states and 584 transitions. Second operand has 22 states, 22 states have (on average 3.9545454545454546) internal successors, (87), 22 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) [2021-11-09 09:15:24,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:15:24,808 INFO L93 Difference]: Finished difference Result 3599 states and 5224 transitions. [2021-11-09 09:15:24,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-11-09 09:15:24,808 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 3.9545454545454546) internal successors, (87), 22 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 [2021-11-09 09:15:24,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:15:24,811 INFO L225 Difference]: With dead ends: 3599 [2021-11-09 09:15:24,812 INFO L226 Difference]: Without dead ends: 3593 [2021-11-09 09:15:24,812 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 459 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=383, Invalid=1873, Unknown=0, NotChecked=0, Total=2256 [2021-11-09 09:15:24,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3593 states. [2021-11-09 09:15:25,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3593 to 439. [2021-11-09 09:15:25,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 436 states have (on average 1.3440366972477065) internal successors, (586), 438 states have internal predecessors, (586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:15:25,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 586 transitions. [2021-11-09 09:15:25,252 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 586 transitions. Word has length 87 [2021-11-09 09:15:25,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:15:25,252 INFO L470 AbstractCegarLoop]: Abstraction has 439 states and 586 transitions. [2021-11-09 09:15:25,252 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 3.9545454545454546) internal successors, (87), 22 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) [2021-11-09 09:15:25,252 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 586 transitions. [2021-11-09 09:15:25,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-09 09:15:25,253 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:15:25,253 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:15:25,253 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2021-11-09 09:15:25,253 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-09 09:15:25,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:15:25,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1168057198, now seen corresponding path program 1 times [2021-11-09 09:15:25,253 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:15:25,254 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499507487] [2021-11-09 09:15:25,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:15:25,254 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:15:25,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:15:25,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:15:25,631 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:15:25,631 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499507487] [2021-11-09 09:15:25,632 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499507487] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:15:25,632 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:15:25,632 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-09 09:15:25,632 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126279752] [2021-11-09 09:15:25,632 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-09 09:15:25,632 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:15:25,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-09 09:15:25,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-11-09 09:15:25,633 INFO L87 Difference]: Start difference. First operand 439 states and 586 transitions. Second operand has 13 states, 13 states have (on average 6.6923076923076925) internal successors, (87), 13 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) [2021-11-09 09:15:28,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:15:28,931 INFO L93 Difference]: Finished difference Result 1757 states and 2516 transitions. [2021-11-09 09:15:28,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-09 09:15:28,932 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.6923076923076925) internal successors, (87), 13 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 [2021-11-09 09:15:28,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:15:28,933 INFO L225 Difference]: With dead ends: 1757 [2021-11-09 09:15:28,933 INFO L226 Difference]: Without dead ends: 1751 [2021-11-09 09:15:28,933 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2021-11-09 09:15:28,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1751 states. [2021-11-09 09:15:29,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1751 to 411. [2021-11-09 09:15:29,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 411 states, 409 states have (on average 1.3422982885085575) internal successors, (549), 410 states have internal predecessors, (549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:15:29,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 549 transitions. [2021-11-09 09:15:29,360 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 549 transitions. Word has length 87 [2021-11-09 09:15:29,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:15:29,360 INFO L470 AbstractCegarLoop]: Abstraction has 411 states and 549 transitions. [2021-11-09 09:15:29,360 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.6923076923076925) internal successors, (87), 13 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) [2021-11-09 09:15:29,360 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 549 transitions. [2021-11-09 09:15:29,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-09 09:15:29,361 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:15:29,361 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:15:29,361 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2021-11-09 09:15:29,361 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-09 09:15:29,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:15:29,361 INFO L85 PathProgramCache]: Analyzing trace with hash -1658495763, now seen corresponding path program 1 times [2021-11-09 09:15:29,361 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:15:29,361 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733551149] [2021-11-09 09:15:29,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:15:29,362 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:15:29,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:15:29,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:15:29,666 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:15:29,666 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733551149] [2021-11-09 09:15:29,666 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733551149] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:15:29,666 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:15:29,666 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-09 09:15:29,667 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575516699] [2021-11-09 09:15:29,667 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-09 09:15:29,667 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:15:29,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-09 09:15:29,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-11-09 09:15:29,668 INFO L87 Difference]: Start difference. First operand 411 states and 549 transitions. Second operand has 13 states, 13 states have (on average 6.6923076923076925) internal successors, (87), 13 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) [2021-11-09 09:15:32,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:15:32,665 INFO L93 Difference]: Finished difference Result 1606 states and 2306 transitions. [2021-11-09 09:15:32,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-09 09:15:32,665 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.6923076923076925) internal successors, (87), 13 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 [2021-11-09 09:15:32,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:15:32,667 INFO L225 Difference]: With dead ends: 1606 [2021-11-09 09:15:32,667 INFO L226 Difference]: Without dead ends: 1588 [2021-11-09 09:15:32,667 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2021-11-09 09:15:32,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1588 states. [2021-11-09 09:15:33,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1588 to 393. [2021-11-09 09:15:33,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 392 states have (on average 1.3520408163265305) internal successors, (530), 392 states have internal predecessors, (530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:15:33,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 530 transitions. [2021-11-09 09:15:33,063 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 530 transitions. Word has length 87 [2021-11-09 09:15:33,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:15:33,063 INFO L470 AbstractCegarLoop]: Abstraction has 393 states and 530 transitions. [2021-11-09 09:15:33,063 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.6923076923076925) internal successors, (87), 13 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) [2021-11-09 09:15:33,063 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 530 transitions. [2021-11-09 09:15:33,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-09 09:15:33,064 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:15:33,064 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:15:33,064 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2021-11-09 09:15:33,064 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-09 09:15:33,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:15:33,065 INFO L85 PathProgramCache]: Analyzing trace with hash -2132814901, now seen corresponding path program 1 times [2021-11-09 09:15:33,065 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:15:33,065 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823279073] [2021-11-09 09:15:33,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:15:33,066 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:15:33,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:15:33,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:15:33,115 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:15:33,115 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823279073] [2021-11-09 09:15:33,116 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823279073] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:15:33,116 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:15:33,116 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 09:15:33,116 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113918006] [2021-11-09 09:15:33,117 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 09:15:33,117 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:15:33,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 09:15:33,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 09:15:33,118 INFO L87 Difference]: Start difference. First operand 393 states and 530 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:15:33,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:15:33,906 INFO L93 Difference]: Finished difference Result 877 states and 1244 transitions. [2021-11-09 09:15:33,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 09:15:33,907 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-11-09 09:15:33,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:15:33,907 INFO L225 Difference]: With dead ends: 877 [2021-11-09 09:15:33,907 INFO L226 Difference]: Without dead ends: 627 [2021-11-09 09:15:33,908 INFO L786 BasicCegarLoop]: 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 [2021-11-09 09:15:33,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 627 states. [2021-11-09 09:15:34,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 627 to 625. [2021-11-09 09:15:34,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 625 states, 624 states have (on average 1.3878205128205128) internal successors, (866), 624 states have internal predecessors, (866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:15:34,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 625 states to 625 states and 866 transitions. [2021-11-09 09:15:34,625 INFO L78 Accepts]: Start accepts. Automaton has 625 states and 866 transitions. Word has length 114 [2021-11-09 09:15:34,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:15:34,625 INFO L470 AbstractCegarLoop]: Abstraction has 625 states and 866 transitions. [2021-11-09 09:15:34,626 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:15:34,626 INFO L276 IsEmpty]: Start isEmpty. Operand 625 states and 866 transitions. [2021-11-09 09:15:34,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-09 09:15:34,627 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:15:34,627 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:15:34,627 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2021-11-09 09:15:34,627 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-09 09:15:34,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:15:34,627 INFO L85 PathProgramCache]: Analyzing trace with hash -1778175941, now seen corresponding path program 1 times [2021-11-09 09:15:34,627 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:15:34,627 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116766552] [2021-11-09 09:15:34,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:15:34,628 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:15:34,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:15:34,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:15:34,672 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:15:34,672 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116766552] [2021-11-09 09:15:34,672 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116766552] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:15:34,672 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:15:34,672 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-09 09:15:34,672 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079706266] [2021-11-09 09:15:34,673 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-09 09:15:34,673 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:15:34,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-09 09:15:34,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-09 09:15:34,673 INFO L87 Difference]: Start difference. First operand 625 states and 866 transitions. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:15:37,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:15:37,043 INFO L93 Difference]: Finished difference Result 2089 states and 2982 transitions. [2021-11-09 09:15:37,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-09 09:15:37,044 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-11-09 09:15:37,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:15:37,045 INFO L225 Difference]: With dead ends: 2089 [2021-11-09 09:15:37,045 INFO L226 Difference]: Without dead ends: 1607 [2021-11-09 09:15:37,046 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-09 09:15:37,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1607 states. [2021-11-09 09:15:37,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1607 to 729. [2021-11-09 09:15:37,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 729 states, 728 states have (on average 1.370879120879121) internal successors, (998), 728 states have internal predecessors, (998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:15:37,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 729 states to 729 states and 998 transitions. [2021-11-09 09:15:37,937 INFO L78 Accepts]: Start accepts. Automaton has 729 states and 998 transitions. Word has length 116 [2021-11-09 09:15:37,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:15:37,938 INFO L470 AbstractCegarLoop]: Abstraction has 729 states and 998 transitions. [2021-11-09 09:15:37,938 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:15:37,938 INFO L276 IsEmpty]: Start isEmpty. Operand 729 states and 998 transitions. [2021-11-09 09:15:37,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-09 09:15:37,939 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:15:37,939 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:15:37,939 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2021-11-09 09:15:37,939 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-09 09:15:37,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:15:37,939 INFO L85 PathProgramCache]: Analyzing trace with hash 1881237749, now seen corresponding path program 1 times [2021-11-09 09:15:37,939 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:15:37,939 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388174978] [2021-11-09 09:15:37,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:15:37,940 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:15:37,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:15:37,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:15:37,985 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:15:37,985 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388174978] [2021-11-09 09:15:37,985 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388174978] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:15:37,985 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:15:37,985 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-09 09:15:37,985 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986171685] [2021-11-09 09:15:37,986 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-09 09:15:37,986 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:15:37,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-09 09:15:37,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-09 09:15:37,986 INFO L87 Difference]: Start difference. First operand 729 states and 998 transitions. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:15:42,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:15:42,570 INFO L93 Difference]: Finished difference Result 3561 states and 5042 transitions. [2021-11-09 09:15:42,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-09 09:15:42,570 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-11-09 09:15:42,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:15:42,573 INFO L225 Difference]: With dead ends: 3561 [2021-11-09 09:15:42,573 INFO L226 Difference]: Without dead ends: 2975 [2021-11-09 09:15:42,574 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-09 09:15:42,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2975 states. [2021-11-09 09:15:44,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2975 to 1345. [2021-11-09 09:15:44,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1345 states, 1344 states have (on average 1.3913690476190477) internal successors, (1870), 1344 states have internal predecessors, (1870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:15:44,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1345 states to 1345 states and 1870 transitions. [2021-11-09 09:15:44,401 INFO L78 Accepts]: Start accepts. Automaton has 1345 states and 1870 transitions. Word has length 116 [2021-11-09 09:15:44,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:15:44,401 INFO L470 AbstractCegarLoop]: Abstraction has 1345 states and 1870 transitions. [2021-11-09 09:15:44,401 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:15:44,401 INFO L276 IsEmpty]: Start isEmpty. Operand 1345 states and 1870 transitions. [2021-11-09 09:15:44,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-09 09:15:44,402 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:15:44,402 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:15:44,403 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2021-11-09 09:15:44,403 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-09 09:15:44,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:15:44,403 INFO L85 PathProgramCache]: Analyzing trace with hash -455453719, now seen corresponding path program 1 times [2021-11-09 09:15:44,403 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:15:44,403 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620182601] [2021-11-09 09:15:44,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:15:44,403 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:15:44,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:15:44,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:15:44,447 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:15:44,447 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620182601] [2021-11-09 09:15:44,447 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620182601] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:15:44,447 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:15:44,447 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-09 09:15:44,448 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143082647] [2021-11-09 09:15:44,448 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-09 09:15:44,448 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:15:44,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-09 09:15:44,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-09 09:15:44,449 INFO L87 Difference]: Start difference. First operand 1345 states and 1870 transitions. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:15:52,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:15:52,348 INFO L93 Difference]: Finished difference Result 6505 states and 9138 transitions. [2021-11-09 09:15:52,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-09 09:15:52,354 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-11-09 09:15:52,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:15:52,359 INFO L225 Difference]: With dead ends: 6505 [2021-11-09 09:15:52,359 INFO L226 Difference]: Without dead ends: 5303 [2021-11-09 09:15:52,361 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-09 09:15:52,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5303 states. [2021-11-09 09:15:56,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5303 to 2609. [2021-11-09 09:15:56,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2609 states, 2608 states have (on average 1.3980061349693251) internal successors, (3646), 2608 states have internal predecessors, (3646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:15:56,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2609 states to 2609 states and 3646 transitions. [2021-11-09 09:15:56,143 INFO L78 Accepts]: Start accepts. Automaton has 2609 states and 3646 transitions. Word has length 116 [2021-11-09 09:15:56,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:15:56,143 INFO L470 AbstractCegarLoop]: Abstraction has 2609 states and 3646 transitions. [2021-11-09 09:15:56,143 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:15:56,143 INFO L276 IsEmpty]: Start isEmpty. Operand 2609 states and 3646 transitions. [2021-11-09 09:15:56,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-09 09:15:56,146 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:15:56,146 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:15:56,146 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2021-11-09 09:15:56,147 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-09 09:15:56,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:15:56,147 INFO L85 PathProgramCache]: Analyzing trace with hash 2067568748, now seen corresponding path program 1 times [2021-11-09 09:15:56,147 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:15:56,147 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350107148] [2021-11-09 09:15:56,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:15:56,148 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:15:56,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:15:56,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:15:56,191 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:15:56,191 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350107148] [2021-11-09 09:15:56,191 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350107148] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:15:56,191 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:15:56,192 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 09:15:56,192 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251710341] [2021-11-09 09:15:56,192 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 09:15:56,192 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:15:56,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 09:15:56,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 09:15:56,192 INFO L87 Difference]: Start difference. First operand 2609 states and 3646 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:16:01,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:16:01,507 INFO L93 Difference]: Finished difference Result 6373 states and 8992 transitions. [2021-11-09 09:16:01,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 09:16:01,508 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-11-09 09:16:01,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:16:01,511 INFO L225 Difference]: With dead ends: 6373 [2021-11-09 09:16:01,511 INFO L226 Difference]: Without dead ends: 3907 [2021-11-09 09:16:01,513 INFO L786 BasicCegarLoop]: 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 [2021-11-09 09:16:01,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3907 states. [2021-11-09 09:16:08,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3907 to 3905. [2021-11-09 09:16:08,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3905 states, 3904 states have (on average 1.3929303278688525) internal successors, (5438), 3904 states have internal predecessors, (5438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:16:08,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3905 states to 3905 states and 5438 transitions. [2021-11-09 09:16:08,104 INFO L78 Accepts]: Start accepts. Automaton has 3905 states and 5438 transitions. Word has length 116 [2021-11-09 09:16:08,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:16:08,104 INFO L470 AbstractCegarLoop]: Abstraction has 3905 states and 5438 transitions. [2021-11-09 09:16:08,104 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:16:08,104 INFO L276 IsEmpty]: Start isEmpty. Operand 3905 states and 5438 transitions. [2021-11-09 09:16:08,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-09 09:16:08,107 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:16:08,107 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:16:08,107 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2021-11-09 09:16:08,107 INFO L402 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-09 09:16:08,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:16:08,107 INFO L85 PathProgramCache]: Analyzing trace with hash 1298275755, now seen corresponding path program 1 times [2021-11-09 09:16:08,107 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:16:08,108 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606300276] [2021-11-09 09:16:08,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:16:08,108 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:16:08,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:16:08,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:16:08,146 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:16:08,146 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606300276] [2021-11-09 09:16:08,146 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606300276] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:16:08,146 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:16:08,146 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 09:16:08,146 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148369813] [2021-11-09 09:16:08,146 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 09:16:08,146 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:16:08,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 09:16:08,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 09:16:08,147 INFO L87 Difference]: Start difference. First operand 3905 states and 5438 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:16:17,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:16:17,226 INFO L93 Difference]: Finished difference Result 9613 states and 13376 transitions. [2021-11-09 09:16:17,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 09:16:17,226 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-11-09 09:16:17,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:16:17,232 INFO L225 Difference]: With dead ends: 9613 [2021-11-09 09:16:17,233 INFO L226 Difference]: Without dead ends: 5851 [2021-11-09 09:16:17,236 INFO L786 BasicCegarLoop]: 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 [2021-11-09 09:16:17,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5851 states. [2021-11-09 09:16:26,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5851 to 5849. [2021-11-09 09:16:26,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5849 states, 5848 states have (on average 1.3676470588235294) internal successors, (7998), 5848 states have internal predecessors, (7998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:16:26,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5849 states to 5849 states and 7998 transitions. [2021-11-09 09:16:26,806 INFO L78 Accepts]: Start accepts. Automaton has 5849 states and 7998 transitions. Word has length 116 [2021-11-09 09:16:26,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:16:26,807 INFO L470 AbstractCegarLoop]: Abstraction has 5849 states and 7998 transitions. [2021-11-09 09:16:26,807 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:16:26,807 INFO L276 IsEmpty]: Start isEmpty. Operand 5849 states and 7998 transitions. [2021-11-09 09:16:26,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-09 09:16:26,809 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:16:26,809 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:16:26,809 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2021-11-09 09:16:26,809 INFO L402 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-09 09:16:26,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:16:26,810 INFO L85 PathProgramCache]: Analyzing trace with hash -1451686365, now seen corresponding path program 1 times [2021-11-09 09:16:26,810 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:16:26,810 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852734853] [2021-11-09 09:16:26,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:16:26,810 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:16:26,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:16:26,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:16:26,859 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:16:26,859 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852734853] [2021-11-09 09:16:26,859 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852734853] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:16:26,859 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:16:26,859 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-09 09:16:26,859 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331534035] [2021-11-09 09:16:26,860 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-09 09:16:26,860 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:16:26,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-09 09:16:26,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-09 09:16:26,860 INFO L87 Difference]: Start difference. First operand 5849 states and 7998 transitions. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:17:01,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:17:01,337 INFO L93 Difference]: Finished difference Result 26401 states and 35954 transitions. [2021-11-09 09:17:01,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-09 09:17:01,338 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-11-09 09:17:01,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:17:01,363 INFO L225 Difference]: With dead ends: 26401 [2021-11-09 09:17:01,363 INFO L226 Difference]: Without dead ends: 20695 [2021-11-09 09:17:01,372 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-09 09:17:01,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20695 states. [2021-11-09 09:17:21,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20695 to 11913. [2021-11-09 09:17:21,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11913 states, 11912 states have (on average 1.365849563465413) internal successors, (16270), 11912 states have internal predecessors, (16270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:17:21,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11913 states to 11913 states and 16270 transitions. [2021-11-09 09:17:21,497 INFO L78 Accepts]: Start accepts. Automaton has 11913 states and 16270 transitions. Word has length 116 [2021-11-09 09:17:21,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:17:21,497 INFO L470 AbstractCegarLoop]: Abstraction has 11913 states and 16270 transitions. [2021-11-09 09:17:21,497 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:17:21,497 INFO L276 IsEmpty]: Start isEmpty. Operand 11913 states and 16270 transitions. [2021-11-09 09:17:21,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-09 09:17:21,501 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:17:21,501 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:17:21,501 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2021-11-09 09:17:21,501 INFO L402 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-09 09:17:21,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:17:21,501 INFO L85 PathProgramCache]: Analyzing trace with hash -871511505, now seen corresponding path program 1 times [2021-11-09 09:17:21,501 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:17:21,502 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736040895] [2021-11-09 09:17:21,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:17:21,502 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:17:21,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:17:21,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:17:21,547 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:17:21,547 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736040895] [2021-11-09 09:17:21,547 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736040895] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:17:21,547 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:17:21,547 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-09 09:17:21,548 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256141826] [2021-11-09 09:17:21,548 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-09 09:17:21,548 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:17:21,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-09 09:17:21,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-09 09:17:21,549 INFO L87 Difference]: Start difference. First operand 11913 states and 16270 transitions. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:18:35,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:18:35,034 INFO L93 Difference]: Finished difference Result 52049 states and 70946 transitions. [2021-11-09 09:18:35,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-09 09:18:35,034 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-11-09 09:18:35,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:18:35,087 INFO L225 Difference]: With dead ends: 52049 [2021-11-09 09:18:35,087 INFO L226 Difference]: Without dead ends: 40279 [2021-11-09 09:18:35,103 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-09 09:18:35,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40279 states. [2021-11-09 09:19:16,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40279 to 24401. [2021-11-09 09:19:16,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24401 states, 24400 states have (on average 1.3625409836065574) internal successors, (33246), 24400 states have internal predecessors, (33246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:19:16,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24401 states to 24401 states and 33246 transitions. [2021-11-09 09:19:16,751 INFO L78 Accepts]: Start accepts. Automaton has 24401 states and 33246 transitions. Word has length 116 [2021-11-09 09:19:16,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:19:16,751 INFO L470 AbstractCegarLoop]: Abstraction has 24401 states and 33246 transitions. [2021-11-09 09:19:16,751 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:19:16,751 INFO L276 IsEmpty]: Start isEmpty. Operand 24401 states and 33246 transitions. [2021-11-09 09:19:16,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-11-09 09:19:16,755 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:19:16,755 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:19:16,756 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2021-11-09 09:19:16,756 INFO L402 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-09 09:19:16,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:19:16,756 INFO L85 PathProgramCache]: Analyzing trace with hash -389045736, now seen corresponding path program 1 times [2021-11-09 09:19:16,756 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:19:16,756 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035778470] [2021-11-09 09:19:16,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:19:16,756 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:19:16,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:19:16,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:19:16,802 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:19:16,802 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035778470] [2021-11-09 09:19:16,802 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035778470] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:19:16,803 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:19:16,803 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 09:19:16,803 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889430679] [2021-11-09 09:19:16,803 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 09:19:16,804 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:19:16,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 09:19:16,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 09:19:16,804 INFO L87 Difference]: Start difference. First operand 24401 states and 33246 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:19:59,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:19:59,426 INFO L93 Difference]: Finished difference Result 47893 states and 65184 transitions. [2021-11-09 09:19:59,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 09:19:59,427 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2021-11-09 09:19:59,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:19:59,459 INFO L225 Difference]: With dead ends: 47893 [2021-11-09 09:19:59,459 INFO L226 Difference]: Without dead ends: 23635 [2021-11-09 09:19:59,480 INFO L786 BasicCegarLoop]: 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 [2021-11-09 09:19:59,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23635 states. [2021-11-09 09:20:39,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23635 to 21841. [2021-11-09 09:20:39,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21841 states, 21840 states have (on average 1.3566849816849818) internal successors, (29630), 21840 states have internal predecessors, (29630), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:20:39,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21841 states to 21841 states and 29630 transitions. [2021-11-09 09:20:39,891 INFO L78 Accepts]: Start accepts. Automaton has 21841 states and 29630 transitions. Word has length 117 [2021-11-09 09:20:39,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:20:39,891 INFO L470 AbstractCegarLoop]: Abstraction has 21841 states and 29630 transitions. [2021-11-09 09:20:39,891 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:20:39,891 INFO L276 IsEmpty]: Start isEmpty. Operand 21841 states and 29630 transitions. [2021-11-09 09:20:39,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-11-09 09:20:39,894 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:20:39,894 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:20:39,894 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2021-11-09 09:20:39,894 INFO L402 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-09 09:20:39,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:20:39,895 INFO L85 PathProgramCache]: Analyzing trace with hash 966003247, now seen corresponding path program 1 times [2021-11-09 09:20:39,895 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:20:39,895 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417538896] [2021-11-09 09:20:39,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:20:39,895 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:20:39,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:20:39,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:20:39,944 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:20:39,944 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417538896] [2021-11-09 09:20:39,944 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417538896] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:20:39,944 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:20:39,944 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 09:20:39,944 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131195617] [2021-11-09 09:20:39,945 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 09:20:39,945 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:20:39,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 09:20:39,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 09:20:39,946 INFO L87 Difference]: Start difference. First operand 21841 states and 29630 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:21:18,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:21:18,697 INFO L93 Difference]: Finished difference Result 42453 states and 57440 transitions. [2021-11-09 09:21:18,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 09:21:18,697 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 118 [2021-11-09 09:21:18,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:21:18,724 INFO L225 Difference]: With dead ends: 42453 [2021-11-09 09:21:18,724 INFO L226 Difference]: Without dead ends: 20755 [2021-11-09 09:21:18,735 INFO L786 BasicCegarLoop]: 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 [2021-11-09 09:21:18,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20755 states. [2021-11-09 09:21:56,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20755 to 20353. [2021-11-09 09:21:56,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20353 states, 20352 states have (on average 1.3434551886792452) internal successors, (27342), 20352 states have internal predecessors, (27342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:21:56,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20353 states to 20353 states and 27342 transitions. [2021-11-09 09:21:56,746 INFO L78 Accepts]: Start accepts. Automaton has 20353 states and 27342 transitions. Word has length 118 [2021-11-09 09:21:56,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:21:56,746 INFO L470 AbstractCegarLoop]: Abstraction has 20353 states and 27342 transitions. [2021-11-09 09:21:56,746 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:21:56,746 INFO L276 IsEmpty]: Start isEmpty. Operand 20353 states and 27342 transitions. [2021-11-09 09:21:56,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-11-09 09:21:56,748 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:21:56,749 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:21:56,749 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2021-11-09 09:21:56,749 INFO L402 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-09 09:21:56,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:21:56,750 INFO L85 PathProgramCache]: Analyzing trace with hash -1314946245, now seen corresponding path program 1 times [2021-11-09 09:21:56,750 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:21:56,750 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817198413] [2021-11-09 09:21:56,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:21:56,751 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:21:56,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:21:56,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:21:56,801 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:21:56,801 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817198413] [2021-11-09 09:21:56,801 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817198413] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:21:56,801 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:21:56,804 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 09:21:56,804 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478420418] [2021-11-09 09:21:56,804 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-09 09:21:56,804 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:21:56,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 09:21:56,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 09:21:56,805 INFO L87 Difference]: Start difference. First operand 20353 states and 27342 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)