./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcef325f-f5b8-49d6-938b-5fb46bfe7d3b/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcef325f-f5b8-49d6-938b-5fb46bfe7d3b/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcef325f-f5b8-49d6-938b-5fb46bfe7d3b/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcef325f-f5b8-49d6-938b-5fb46bfe7d3b/bin/uautomizer-YU5uOKAj3y/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcef325f-f5b8-49d6-938b-5fb46bfe7d3b/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcef325f-f5b8-49d6-938b-5fb46bfe7d3b/bin/uautomizer-YU5uOKAj3y --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 c082dc45380b26d7d2efa14a2b9a25a882bb361e7db7c29c901ddfabd3b29352 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 17:53:23,116 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 17:53:23,119 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 17:53:23,162 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 17:53:23,163 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 17:53:23,164 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 17:53:23,167 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 17:53:23,169 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 17:53:23,172 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 17:53:23,174 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 17:53:23,175 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 17:53:23,177 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 17:53:23,178 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 17:53:23,179 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 17:53:23,181 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 17:53:23,183 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 17:53:23,185 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 17:53:23,186 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 17:53:23,189 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 17:53:23,192 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 17:53:23,195 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 17:53:23,197 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 17:53:23,198 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 17:53:23,200 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 17:53:23,204 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 17:53:23,213 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 17:53:23,213 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 17:53:23,215 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 17:53:23,216 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 17:53:23,217 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 17:53:23,220 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 17:53:23,221 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 17:53:23,223 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 17:53:23,225 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 17:53:23,227 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 17:53:23,228 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 17:53:23,229 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 17:53:23,230 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 17:53:23,230 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 17:53:23,231 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 17:53:23,232 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 17:53:23,233 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcef325f-f5b8-49d6-938b-5fb46bfe7d3b/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-13 17:53:23,297 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 17:53:23,297 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 17:53:23,298 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 17:53:23,298 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 17:53:23,308 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 17:53:23,308 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-13 17:53:23,309 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 17:53:23,310 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 17:53:23,310 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 17:53:23,310 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 17:53:23,312 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 17:53:23,312 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 17:53:23,312 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 17:53:23,313 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 17:53:23,313 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 17:53:23,313 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 17:53:23,314 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 17:53:23,314 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 17:53:23,314 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 17:53:23,314 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 17:53:23,315 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 17:53:23,315 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 17:53:23,315 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 17:53:23,316 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-13 17:53:23,316 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 17:53:23,316 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 17:53:23,317 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 17:53:23,317 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 17:53:23,317 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-13 17:53:23,320 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 17:53:23,320 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-13 17:53:23,320 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-13 17:53:23,320 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 17:53:23,321 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 17:53:23,321 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_fcef325f-f5b8-49d6-938b-5fb46bfe7d3b/bin/uautomizer-YU5uOKAj3y/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcef325f-f5b8-49d6-938b-5fb46bfe7d3b/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c082dc45380b26d7d2efa14a2b9a25a882bb361e7db7c29c901ddfabd3b29352 [2021-11-13 17:53:23,678 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 17:53:23,704 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 17:53:23,708 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 17:53:23,709 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 17:53:23,710 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 17:53:23,712 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcef325f-f5b8-49d6-938b-5fb46bfe7d3b/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2021-11-13 17:53:23,799 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcef325f-f5b8-49d6-938b-5fb46bfe7d3b/bin/uautomizer-YU5uOKAj3y/data/f5d7e3373/0cb03c878b384389933326d73f8b1858/FLAG1da974c55 [2021-11-13 17:53:24,726 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 17:53:24,729 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcef325f-f5b8-49d6-938b-5fb46bfe7d3b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2021-11-13 17:53:24,770 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcef325f-f5b8-49d6-938b-5fb46bfe7d3b/bin/uautomizer-YU5uOKAj3y/data/f5d7e3373/0cb03c878b384389933326d73f8b1858/FLAG1da974c55 [2021-11-13 17:53:25,165 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcef325f-f5b8-49d6-938b-5fb46bfe7d3b/bin/uautomizer-YU5uOKAj3y/data/f5d7e3373/0cb03c878b384389933326d73f8b1858 [2021-11-13 17:53:25,168 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 17:53:25,170 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 17:53:25,172 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 17:53:25,172 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 17:53:25,176 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 17:53:25,177 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:53:25" (1/1) ... [2021-11-13 17:53:25,179 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67a8010c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:53:25, skipping insertion in model container [2021-11-13 17:53:25,179 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 05:53:25" (1/1) ... [2021-11-13 17:53:25,188 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 17:53:25,345 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 17:53:26,021 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_fcef325f-f5b8-49d6-938b-5fb46bfe7d3b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[33110,33123] [2021-11-13 17:53:26,111 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_fcef325f-f5b8-49d6-938b-5fb46bfe7d3b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[47435,47448] [2021-11-13 17:53:26,174 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_fcef325f-f5b8-49d6-938b-5fb46bfe7d3b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[54586,54599] [2021-11-13 17:53:26,193 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_fcef325f-f5b8-49d6-938b-5fb46bfe7d3b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[58145,58158] [2021-11-13 17:53:26,211 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_fcef325f-f5b8-49d6-938b-5fb46bfe7d3b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[61485,61498] [2021-11-13 17:53:26,290 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_fcef325f-f5b8-49d6-938b-5fb46bfe7d3b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[76732,76745] [2021-11-13 17:53:26,325 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_fcef325f-f5b8-49d6-938b-5fb46bfe7d3b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[83878,83891] [2021-11-13 17:53:26,343 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_fcef325f-f5b8-49d6-938b-5fb46bfe7d3b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[87432,87445] [2021-11-13 17:53:26,361 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_fcef325f-f5b8-49d6-938b-5fb46bfe7d3b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[90767,90780] [2021-11-13 17:53:26,395 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_fcef325f-f5b8-49d6-938b-5fb46bfe7d3b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[94900,94913] [2021-11-13 17:53:26,415 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_fcef325f-f5b8-49d6-938b-5fb46bfe7d3b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[98301,98314] [2021-11-13 17:53:26,466 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_fcef325f-f5b8-49d6-938b-5fb46bfe7d3b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[101855,101868] [2021-11-13 17:53:26,501 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_fcef325f-f5b8-49d6-938b-5fb46bfe7d3b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[105190,105203] [2021-11-13 17:53:26,526 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_fcef325f-f5b8-49d6-938b-5fb46bfe7d3b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[108944,108957] [2021-11-13 17:53:26,558 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_fcef325f-f5b8-49d6-938b-5fb46bfe7d3b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[112294,112307] [2021-11-13 17:53:26,589 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_fcef325f-f5b8-49d6-938b-5fb46bfe7d3b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[115829,115842] [2021-11-13 17:53:26,652 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 17:53:26,670 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 17:53:26,983 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_fcef325f-f5b8-49d6-938b-5fb46bfe7d3b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[33110,33123] [2021-11-13 17:53:27,072 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_fcef325f-f5b8-49d6-938b-5fb46bfe7d3b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[47435,47448] [2021-11-13 17:53:27,118 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_fcef325f-f5b8-49d6-938b-5fb46bfe7d3b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[54586,54599] [2021-11-13 17:53:27,136 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_fcef325f-f5b8-49d6-938b-5fb46bfe7d3b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[58145,58158] [2021-11-13 17:53:27,150 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_fcef325f-f5b8-49d6-938b-5fb46bfe7d3b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[61485,61498] [2021-11-13 17:53:27,213 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_fcef325f-f5b8-49d6-938b-5fb46bfe7d3b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[76732,76745] [2021-11-13 17:53:27,240 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_fcef325f-f5b8-49d6-938b-5fb46bfe7d3b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[83878,83891] [2021-11-13 17:53:27,254 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_fcef325f-f5b8-49d6-938b-5fb46bfe7d3b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[87432,87445] [2021-11-13 17:53:27,267 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_fcef325f-f5b8-49d6-938b-5fb46bfe7d3b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[90767,90780] [2021-11-13 17:53:27,283 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_fcef325f-f5b8-49d6-938b-5fb46bfe7d3b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[94900,94913] [2021-11-13 17:53:27,296 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_fcef325f-f5b8-49d6-938b-5fb46bfe7d3b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[98301,98314] [2021-11-13 17:53:27,359 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_fcef325f-f5b8-49d6-938b-5fb46bfe7d3b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[101855,101868] [2021-11-13 17:53:27,388 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_fcef325f-f5b8-49d6-938b-5fb46bfe7d3b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[105190,105203] [2021-11-13 17:53:27,443 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_fcef325f-f5b8-49d6-938b-5fb46bfe7d3b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[108944,108957] [2021-11-13 17:53:27,457 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_fcef325f-f5b8-49d6-938b-5fb46bfe7d3b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[112294,112307] [2021-11-13 17:53:27,485 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_fcef325f-f5b8-49d6-938b-5fb46bfe7d3b/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[115829,115842] [2021-11-13 17:53:27,514 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 17:53:27,544 INFO L208 MainTranslator]: Completed translation [2021-11-13 17:53:27,544 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:53:27 WrapperNode [2021-11-13 17:53:27,544 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 17:53:27,546 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 17:53:27,546 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 17:53:27,546 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 17:53:27,556 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:53:27" (1/1) ... [2021-11-13 17:53:27,643 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:53:27" (1/1) ... [2021-11-13 17:53:27,800 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 17:53:27,801 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 17:53:27,801 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 17:53:27,801 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 17:53:27,812 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:53:27" (1/1) ... [2021-11-13 17:53:27,813 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:53:27" (1/1) ... [2021-11-13 17:53:27,833 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:53:27" (1/1) ... [2021-11-13 17:53:27,833 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:53:27" (1/1) ... [2021-11-13 17:53:27,921 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:53:27" (1/1) ... [2021-11-13 17:53:27,964 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:53:27" (1/1) ... [2021-11-13 17:53:27,983 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:53:27" (1/1) ... [2021-11-13 17:53:28,005 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 17:53:28,008 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 17:53:28,008 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 17:53:28,008 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 17:53:28,009 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:53:27" (1/1) ... [2021-11-13 17:53:28,019 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-13 17:53:28,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcef325f-f5b8-49d6-938b-5fb46bfe7d3b/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 17:53:28,055 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcef325f-f5b8-49d6-938b-5fb46bfe7d3b/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-13 17:53:28,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcef325f-f5b8-49d6-938b-5fb46bfe7d3b/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-13 17:53:28,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 17:53:28,162 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 17:53:28,163 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 17:53:28,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 17:53:32,168 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 17:53:32,168 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-13 17:53:32,174 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:53:32 BoogieIcfgContainer [2021-11-13 17:53:32,175 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 17:53:32,178 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-13 17:53:32,178 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-13 17:53:32,183 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-13 17:53:32,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 05:53:25" (1/3) ... [2021-11-13 17:53:32,184 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a76827b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 05:53:32, skipping insertion in model container [2021-11-13 17:53:32,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 05:53:27" (2/3) ... [2021-11-13 17:53:32,186 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a76827b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 05:53:32, skipping insertion in model container [2021-11-13 17:53:32,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 05:53:32" (3/3) ... [2021-11-13 17:53:32,188 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2021-11-13 17:53:32,196 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-13 17:53:32,196 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2021-11-13 17:53:32,297 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-13 17:53:32,310 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 [2021-11-13 17:53:32,311 INFO L340 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2021-11-13 17:53:32,379 INFO L276 IsEmpty]: Start isEmpty. Operand has 1111 states, 1094 states have (on average 1.8272394881170018) internal successors, (1999), 1110 states have internal predecessors, (1999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:53:32,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-13 17:53:32,418 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:53:32,419 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:53:32,420 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-13 17:53:32,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:53:32,428 INFO L85 PathProgramCache]: Analyzing trace with hash -659325864, now seen corresponding path program 1 times [2021-11-13 17:53:32,440 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:53:32,441 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663865623] [2021-11-13 17:53:32,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:53:32,443 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:53:32,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:33,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:53:33,125 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:53:33,126 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663865623] [2021-11-13 17:53:33,127 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663865623] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:53:33,127 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:53:33,127 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-13 17:53:33,129 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144175418] [2021-11-13 17:53:33,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:53:33,137 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 17:53:33,139 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:53:33,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 17:53:33,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 17:53:33,191 INFO L87 Difference]: Start difference. First operand has 1111 states, 1094 states have (on average 1.8272394881170018) internal successors, (1999), 1110 states have internal predecessors, (1999), 0 states have call successors, (0), 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) [2021-11-13 17:53:34,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:53:34,666 INFO L93 Difference]: Finished difference Result 1449 states and 2552 transitions. [2021-11-13 17:53:34,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 17:53:34,669 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 [2021-11-13 17:53:34,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:53:34,694 INFO L225 Difference]: With dead ends: 1449 [2021-11-13 17:53:34,694 INFO L226 Difference]: Without dead ends: 871 [2021-11-13 17:53:34,702 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-13 17:53:34,710 INFO L933 BasicCegarLoop]: 843 mSDtfsCounter, 4493 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 688 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 890.19ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4493 SdHoareTripleChecker+Valid, 857 SdHoareTripleChecker+Invalid, 718 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 29.09ms SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 688 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1201.50ms IncrementalHoareTripleChecker+Time [2021-11-13 17:53:34,711 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4493 Valid, 857 Invalid, 718 Unknown, 0 Unchecked, 29.09ms Time], IncrementalHoareTripleChecker [30 Valid, 688 Invalid, 0 Unknown, 0 Unchecked, 1201.50ms Time] [2021-11-13 17:53:34,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 871 states. [2021-11-13 17:53:34,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 871 to 871. [2021-11-13 17:53:34,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 871 states, 855 states have (on average 1.3192982456140352) internal successors, (1128), 870 states have internal predecessors, (1128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:53:34,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 871 states to 871 states and 1128 transitions. [2021-11-13 17:53:34,870 INFO L78 Accepts]: Start accepts. Automaton has 871 states and 1128 transitions. Word has length 72 [2021-11-13 17:53:34,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:53:34,871 INFO L470 AbstractCegarLoop]: Abstraction has 871 states and 1128 transitions. [2021-11-13 17:53:34,873 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) [2021-11-13 17:53:34,873 INFO L276 IsEmpty]: Start isEmpty. Operand 871 states and 1128 transitions. [2021-11-13 17:53:34,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-13 17:53:34,881 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:53:34,881 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:53:34,882 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-13 17:53:34,882 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-13 17:53:34,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:53:34,887 INFO L85 PathProgramCache]: Analyzing trace with hash -954340830, now seen corresponding path program 1 times [2021-11-13 17:53:34,888 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:53:34,888 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989750757] [2021-11-13 17:53:34,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:53:34,890 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:53:34,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:35,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:53:35,092 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:53:35,092 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989750757] [2021-11-13 17:53:35,092 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989750757] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:53:35,093 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:53:35,093 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-13 17:53:35,093 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603054342] [2021-11-13 17:53:35,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:53:35,095 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 17:53:35,096 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:53:35,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 17:53:35,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 17:53:35,097 INFO L87 Difference]: Start difference. First operand 871 states and 1128 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:53:36,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:53:36,051 INFO L93 Difference]: Finished difference Result 1240 states and 1621 transitions. [2021-11-13 17:53:36,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 17:53:36,051 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 [2021-11-13 17:53:36,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:53:36,092 INFO L225 Difference]: With dead ends: 1240 [2021-11-13 17:53:36,092 INFO L226 Difference]: Without dead ends: 807 [2021-11-13 17:53:36,096 INFO L932 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 [2021-11-13 17:53:36,104 INFO L933 BasicCegarLoop]: 455 mSDtfsCounter, 3029 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 602 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 671.60ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3029 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.43ms SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 836.03ms IncrementalHoareTripleChecker+Time [2021-11-13 17:53:36,105 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3029 Valid, 491 Invalid, 663 Unknown, 0 Unchecked, 14.43ms Time], IncrementalHoareTripleChecker [61 Valid, 602 Invalid, 0 Unknown, 0 Unchecked, 836.03ms Time] [2021-11-13 17:53:36,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 807 states. [2021-11-13 17:53:36,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 807 to 807. [2021-11-13 17:53:36,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 807 states, 791 states have (on average 1.3337547408343868) internal successors, (1055), 806 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) [2021-11-13 17:53:36,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 807 states to 807 states and 1055 transitions. [2021-11-13 17:53:36,164 INFO L78 Accepts]: Start accepts. Automaton has 807 states and 1055 transitions. Word has length 72 [2021-11-13 17:53:36,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:53:36,166 INFO L470 AbstractCegarLoop]: Abstraction has 807 states and 1055 transitions. [2021-11-13 17:53:36,166 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) [2021-11-13 17:53:36,167 INFO L276 IsEmpty]: Start isEmpty. Operand 807 states and 1055 transitions. [2021-11-13 17:53:36,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-13 17:53:36,175 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:53:36,175 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:53:36,176 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-13 17:53:36,178 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-13 17:53:36,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:53:36,180 INFO L85 PathProgramCache]: Analyzing trace with hash -1430025351, now seen corresponding path program 1 times [2021-11-13 17:53:36,180 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:53:36,180 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211008699] [2021-11-13 17:53:36,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:53:36,181 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:53:36,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:36,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:53:36,375 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:53:36,376 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211008699] [2021-11-13 17:53:36,376 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211008699] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:53:36,376 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:53:36,376 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-13 17:53:36,377 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869621714] [2021-11-13 17:53:36,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:53:36,377 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 17:53:36,378 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:53:36,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 17:53:36,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 17:53:36,379 INFO L87 Difference]: Start difference. First operand 807 states and 1055 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:53:37,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:53:37,012 INFO L93 Difference]: Finished difference Result 944 states and 1219 transitions. [2021-11-13 17:53:37,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 17:53:37,013 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 [2021-11-13 17:53:37,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:53:37,021 INFO L225 Difference]: With dead ends: 944 [2021-11-13 17:53:37,021 INFO L226 Difference]: Without dead ends: 539 [2021-11-13 17:53:37,022 INFO L932 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 [2021-11-13 17:53:37,028 INFO L933 BasicCegarLoop]: 345 mSDtfsCounter, 1993 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 436.35ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1993 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.86ms SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 540.14ms IncrementalHoareTripleChecker+Time [2021-11-13 17:53:37,036 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1993 Valid, 373 Invalid, 388 Unknown, 0 Unchecked, 11.86ms Time], IncrementalHoareTripleChecker [33 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 540.14ms Time] [2021-11-13 17:53:37,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2021-11-13 17:53:37,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 539. [2021-11-13 17:53:37,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 539 states, 523 states have (on average 1.3346080305927341) internal successors, (698), 538 states have internal predecessors, (698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:53:37,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 698 transitions. [2021-11-13 17:53:37,075 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 698 transitions. Word has length 72 [2021-11-13 17:53:37,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:53:37,077 INFO L470 AbstractCegarLoop]: Abstraction has 539 states and 698 transitions. [2021-11-13 17:53:37,077 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) [2021-11-13 17:53:37,077 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 698 transitions. [2021-11-13 17:53:37,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-13 17:53:37,081 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:53:37,081 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:53:37,082 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-13 17:53:37,082 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-13 17:53:37,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:53:37,084 INFO L85 PathProgramCache]: Analyzing trace with hash 463143434, now seen corresponding path program 1 times [2021-11-13 17:53:37,084 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:53:37,087 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500952547] [2021-11-13 17:53:37,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:53:37,089 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:53:37,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:37,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:53:37,249 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:53:37,250 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500952547] [2021-11-13 17:53:37,250 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500952547] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:53:37,250 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:53:37,250 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-13 17:53:37,251 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367839908] [2021-11-13 17:53:37,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:53:37,251 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 17:53:37,252 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:53:37,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 17:53:37,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 17:53:37,253 INFO L87 Difference]: Start difference. First operand 539 states and 698 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) [2021-11-13 17:53:37,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:53:37,739 INFO L93 Difference]: Finished difference Result 748 states and 969 transitions. [2021-11-13 17:53:37,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 17:53:37,739 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 [2021-11-13 17:53:37,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:53:37,743 INFO L225 Difference]: With dead ends: 748 [2021-11-13 17:53:37,743 INFO L226 Difference]: Without dead ends: 460 [2021-11-13 17:53:37,744 INFO L932 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 [2021-11-13 17:53:37,746 INFO L933 BasicCegarLoop]: 318 mSDtfsCounter, 1725 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 336.14ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1725 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.04ms SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 406.80ms IncrementalHoareTripleChecker+Time [2021-11-13 17:53:37,747 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1725 Valid, 330 Invalid, 300 Unknown, 0 Unchecked, 7.04ms Time], IncrementalHoareTripleChecker [18 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 406.80ms Time] [2021-11-13 17:53:37,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2021-11-13 17:53:37,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 460. [2021-11-13 17:53:37,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 460 states, 444 states have (on average 1.3468468468468469) internal successors, (598), 459 states have internal predecessors, (598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:53:37,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 598 transitions. [2021-11-13 17:53:37,782 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 598 transitions. Word has length 73 [2021-11-13 17:53:37,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:53:37,783 INFO L470 AbstractCegarLoop]: Abstraction has 460 states and 598 transitions. [2021-11-13 17:53:37,783 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) [2021-11-13 17:53:37,783 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 598 transitions. [2021-11-13 17:53:37,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-13 17:53:37,785 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:53:37,786 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:53:37,786 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-13 17:53:37,787 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-13 17:53:37,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:53:37,788 INFO L85 PathProgramCache]: Analyzing trace with hash -2053820617, now seen corresponding path program 1 times [2021-11-13 17:53:37,788 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:53:37,788 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100566227] [2021-11-13 17:53:37,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:53:37,789 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:53:37,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:37,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:53:37,943 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:53:37,944 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100566227] [2021-11-13 17:53:37,944 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100566227] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:53:37,944 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:53:37,947 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-13 17:53:37,948 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845179233] [2021-11-13 17:53:37,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:53:37,949 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-13 17:53:37,950 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:53:37,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-13 17:53:37,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-13 17:53:37,952 INFO L87 Difference]: Start difference. First operand 460 states and 598 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) [2021-11-13 17:53:38,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:53:38,337 INFO L93 Difference]: Finished difference Result 637 states and 824 transitions. [2021-11-13 17:53:38,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 17:53:38,343 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 [2021-11-13 17:53:38,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:53:38,347 INFO L225 Difference]: With dead ends: 637 [2021-11-13 17:53:38,347 INFO L226 Difference]: Without dead ends: 390 [2021-11-13 17:53:38,348 INFO L932 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 [2021-11-13 17:53:38,349 INFO L933 BasicCegarLoop]: 283 mSDtfsCounter, 1435 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 253.45ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1435 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.83ms SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 317.76ms IncrementalHoareTripleChecker+Time [2021-11-13 17:53:38,350 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1435 Valid, 303 Invalid, 242 Unknown, 0 Unchecked, 5.83ms Time], IncrementalHoareTripleChecker [18 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 317.76ms Time] [2021-11-13 17:53:38,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2021-11-13 17:53:38,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 390. [2021-11-13 17:53:38,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 374 states have (on average 1.3502673796791445) internal successors, (505), 389 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:53:38,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 505 transitions. [2021-11-13 17:53:38,388 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 505 transitions. Word has length 74 [2021-11-13 17:53:38,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:53:38,389 INFO L470 AbstractCegarLoop]: Abstraction has 390 states and 505 transitions. [2021-11-13 17:53:38,389 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) [2021-11-13 17:53:38,390 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 505 transitions. [2021-11-13 17:53:38,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-13 17:53:38,391 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:53:38,392 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:53:38,392 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-13 17:53:38,392 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-13 17:53:38,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:53:38,394 INFO L85 PathProgramCache]: Analyzing trace with hash 892076084, now seen corresponding path program 1 times [2021-11-13 17:53:38,394 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:53:38,394 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483262182] [2021-11-13 17:53:38,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:53:38,395 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:53:38,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:38,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:53:38,704 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:53:38,704 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483262182] [2021-11-13 17:53:38,704 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483262182] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:53:38,704 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:53:38,705 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-13 17:53:38,705 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039885221] [2021-11-13 17:53:38,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:53:38,706 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-13 17:53:38,706 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:53:38,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-13 17:53:38,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-11-13 17:53:38,707 INFO L87 Difference]: Start difference. First operand 390 states and 505 transitions. Second operand has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 10 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) [2021-11-13 17:53:40,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:53:40,233 INFO L93 Difference]: Finished difference Result 825 states and 1108 transitions. [2021-11-13 17:53:40,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-13 17:53:40,234 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 10 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 [2021-11-13 17:53:40,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:53:40,241 INFO L225 Difference]: With dead ends: 825 [2021-11-13 17:53:40,242 INFO L226 Difference]: Without dead ends: 727 [2021-11-13 17:53:40,243 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=108, Invalid=272, Unknown=0, NotChecked=0, Total=380 [2021-11-13 17:53:40,246 INFO L933 BasicCegarLoop]: 326 mSDtfsCounter, 2403 mSDsluCounter, 1626 mSDsCounter, 0 mSdLazyCounter, 1540 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 965.55ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2403 SdHoareTripleChecker+Valid, 1952 SdHoareTripleChecker+Invalid, 1576 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 23.20ms SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1540 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1174.87ms IncrementalHoareTripleChecker+Time [2021-11-13 17:53:40,246 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2403 Valid, 1952 Invalid, 1576 Unknown, 0 Unchecked, 23.20ms Time], IncrementalHoareTripleChecker [36 Valid, 1540 Invalid, 0 Unknown, 0 Unchecked, 1174.87ms Time] [2021-11-13 17:53:40,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 727 states. [2021-11-13 17:53:40,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 727 to 390. [2021-11-13 17:53:40,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 374 states have (on average 1.3475935828877006) internal successors, (504), 389 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:53:40,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 504 transitions. [2021-11-13 17:53:40,292 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 504 transitions. Word has length 75 [2021-11-13 17:53:40,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:53:40,294 INFO L470 AbstractCegarLoop]: Abstraction has 390 states and 504 transitions. [2021-11-13 17:53:40,294 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 10 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) [2021-11-13 17:53:40,294 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 504 transitions. [2021-11-13 17:53:40,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-13 17:53:40,301 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:53:40,301 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:53:40,301 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-13 17:53:40,302 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-13 17:53:40,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:53:40,302 INFO L85 PathProgramCache]: Analyzing trace with hash 1792005462, now seen corresponding path program 1 times [2021-11-13 17:53:40,303 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:53:40,303 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841181407] [2021-11-13 17:53:40,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:53:40,303 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:53:40,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:40,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:53:40,534 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:53:40,534 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841181407] [2021-11-13 17:53:40,535 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841181407] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:53:40,535 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:53:40,535 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-13 17:53:40,535 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198979998] [2021-11-13 17:53:40,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:53:40,536 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-13 17:53:40,536 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:53:40,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-13 17:53:40,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-13 17:53:40,537 INFO L87 Difference]: Start difference. First operand 390 states and 504 transitions. Second operand has 8 states, 8 states have (on average 9.375) internal successors, (75), 7 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) [2021-11-13 17:53:41,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:53:41,516 INFO L93 Difference]: Finished difference Result 754 states and 960 transitions. [2021-11-13 17:53:41,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-13 17:53:41,517 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 7 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 [2021-11-13 17:53:41,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:53:41,521 INFO L225 Difference]: With dead ends: 754 [2021-11-13 17:53:41,521 INFO L226 Difference]: Without dead ends: 542 [2021-11-13 17:53:41,522 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2021-11-13 17:53:41,523 INFO L933 BasicCegarLoop]: 257 mSDtfsCounter, 2630 mSDsluCounter, 661 mSDsCounter, 0 mSdLazyCounter, 749 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 629.39ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2630 SdHoareTripleChecker+Valid, 918 SdHoareTripleChecker+Invalid, 794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.79ms SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 749 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 757.72ms IncrementalHoareTripleChecker+Time [2021-11-13 17:53:41,524 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2630 Valid, 918 Invalid, 794 Unknown, 0 Unchecked, 14.79ms Time], IncrementalHoareTripleChecker [45 Valid, 749 Invalid, 0 Unknown, 0 Unchecked, 757.72ms Time] [2021-11-13 17:53:41,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2021-11-13 17:53:41,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 390. [2021-11-13 17:53:41,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 374 states have (on average 1.3449197860962567) internal successors, (503), 389 states have internal predecessors, (503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:53:41,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 503 transitions. [2021-11-13 17:53:41,567 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 503 transitions. Word has length 75 [2021-11-13 17:53:41,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:53:41,567 INFO L470 AbstractCegarLoop]: Abstraction has 390 states and 503 transitions. [2021-11-13 17:53:41,568 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 7 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) [2021-11-13 17:53:41,568 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 503 transitions. [2021-11-13 17:53:41,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-13 17:53:41,570 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:53:41,570 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:53:41,570 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-13 17:53:41,570 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-13 17:53:41,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:53:41,571 INFO L85 PathProgramCache]: Analyzing trace with hash 1107897332, now seen corresponding path program 1 times [2021-11-13 17:53:41,571 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:53:41,572 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867885560] [2021-11-13 17:53:41,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:53:41,572 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:53:41,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:41,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:53:41,749 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:53:41,749 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867885560] [2021-11-13 17:53:41,750 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867885560] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:53:41,750 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:53:41,750 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-13 17:53:41,750 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393285676] [2021-11-13 17:53:41,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:53:41,751 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-13 17:53:41,751 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:53:41,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-13 17:53:41,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-13 17:53:41,753 INFO L87 Difference]: Start difference. First operand 390 states and 503 transitions. Second operand has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 8 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:53:43,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:53:43,151 INFO L93 Difference]: Finished difference Result 820 states and 1103 transitions. [2021-11-13 17:53:43,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-13 17:53:43,152 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 8 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2021-11-13 17:53:43,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:53:43,157 INFO L225 Difference]: With dead ends: 820 [2021-11-13 17:53:43,158 INFO L226 Difference]: Without dead ends: 731 [2021-11-13 17:53:43,159 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2021-11-13 17:53:43,160 INFO L933 BasicCegarLoop]: 326 mSDtfsCounter, 3143 mSDsluCounter, 1064 mSDsCounter, 0 mSdLazyCounter, 1079 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 806.66ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3143 SdHoareTripleChecker+Valid, 1390 SdHoareTripleChecker+Invalid, 1127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 19.52ms SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 1079 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 981.43ms IncrementalHoareTripleChecker+Time [2021-11-13 17:53:43,160 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3143 Valid, 1390 Invalid, 1127 Unknown, 0 Unchecked, 19.52ms Time], IncrementalHoareTripleChecker [48 Valid, 1079 Invalid, 0 Unknown, 0 Unchecked, 981.43ms Time] [2021-11-13 17:53:43,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 731 states. [2021-11-13 17:53:43,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 731 to 390. [2021-11-13 17:53:43,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 374 states have (on average 1.3422459893048129) internal successors, (502), 389 states have internal predecessors, (502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:53:43,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 502 transitions. [2021-11-13 17:53:43,209 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 502 transitions. Word has length 75 [2021-11-13 17:53:43,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:53:43,210 INFO L470 AbstractCegarLoop]: Abstraction has 390 states and 502 transitions. [2021-11-13 17:53:43,210 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 8 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:53:43,210 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 502 transitions. [2021-11-13 17:53:43,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-13 17:53:43,212 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:53:43,212 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:53:43,213 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-13 17:53:43,213 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-13 17:53:43,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:53:43,214 INFO L85 PathProgramCache]: Analyzing trace with hash -1055548212, now seen corresponding path program 1 times [2021-11-13 17:53:43,214 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:53:43,214 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594346816] [2021-11-13 17:53:43,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:53:43,215 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:53:43,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:43,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:53:43,369 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:53:43,370 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594346816] [2021-11-13 17:53:43,370 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594346816] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:53:43,370 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:53:43,370 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-13 17:53:43,370 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783051835] [2021-11-13 17:53:43,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:53:43,371 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-13 17:53:43,371 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:53:43,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-13 17:53:43,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-13 17:53:43,373 INFO L87 Difference]: Start difference. First operand 390 states and 502 transitions. Second operand has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 8 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:53:44,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:53:44,737 INFO L93 Difference]: Finished difference Result 863 states and 1156 transitions. [2021-11-13 17:53:44,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-13 17:53:44,738 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 8 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2021-11-13 17:53:44,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:53:44,746 INFO L225 Difference]: With dead ends: 863 [2021-11-13 17:53:44,747 INFO L226 Difference]: Without dead ends: 735 [2021-11-13 17:53:44,748 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-11-13 17:53:44,751 INFO L933 BasicCegarLoop]: 438 mSDtfsCounter, 1991 mSDsluCounter, 1398 mSDsCounter, 0 mSdLazyCounter, 1376 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 810.37ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1991 SdHoareTripleChecker+Valid, 1836 SdHoareTripleChecker+Invalid, 1396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 20.17ms SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1003.85ms IncrementalHoareTripleChecker+Time [2021-11-13 17:53:44,752 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1991 Valid, 1836 Invalid, 1396 Unknown, 0 Unchecked, 20.17ms Time], IncrementalHoareTripleChecker [20 Valid, 1376 Invalid, 0 Unknown, 0 Unchecked, 1003.85ms Time] [2021-11-13 17:53:44,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states. [2021-11-13 17:53:44,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 390. [2021-11-13 17:53:44,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 374 states have (on average 1.339572192513369) internal successors, (501), 389 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:53:44,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 501 transitions. [2021-11-13 17:53:44,802 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 501 transitions. Word has length 75 [2021-11-13 17:53:44,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:53:44,802 INFO L470 AbstractCegarLoop]: Abstraction has 390 states and 501 transitions. [2021-11-13 17:53:44,803 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 8 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:53:44,803 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 501 transitions. [2021-11-13 17:53:44,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-13 17:53:44,805 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:53:44,805 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:53:44,805 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-13 17:53:44,806 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-13 17:53:44,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:53:44,806 INFO L85 PathProgramCache]: Analyzing trace with hash 798728465, now seen corresponding path program 1 times [2021-11-13 17:53:44,807 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:53:44,807 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137234294] [2021-11-13 17:53:44,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:53:44,807 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:53:44,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:45,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:53:45,045 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:53:45,045 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137234294] [2021-11-13 17:53:45,045 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137234294] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:53:45,045 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:53:45,046 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-13 17:53:45,046 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383681592] [2021-11-13 17:53:45,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:53:45,047 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-13 17:53:45,047 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:53:45,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-13 17:53:45,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-13 17:53:45,048 INFO L87 Difference]: Start difference. First operand 390 states and 501 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) [2021-11-13 17:53:46,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:53:46,439 INFO L93 Difference]: Finished difference Result 799 states and 1065 transitions. [2021-11-13 17:53:46,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-13 17:53:46,440 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 [2021-11-13 17:53:46,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:53:46,445 INFO L225 Difference]: With dead ends: 799 [2021-11-13 17:53:46,446 INFO L226 Difference]: Without dead ends: 723 [2021-11-13 17:53:46,447 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2021-11-13 17:53:46,447 INFO L933 BasicCegarLoop]: 379 mSDtfsCounter, 2749 mSDsluCounter, 1212 mSDsCounter, 0 mSdLazyCounter, 1214 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 836.04ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2749 SdHoareTripleChecker+Valid, 1591 SdHoareTripleChecker+Invalid, 1286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.69ms SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 1214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1017.08ms IncrementalHoareTripleChecker+Time [2021-11-13 17:53:46,448 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2749 Valid, 1591 Invalid, 1286 Unknown, 0 Unchecked, 15.69ms Time], IncrementalHoareTripleChecker [72 Valid, 1214 Invalid, 0 Unknown, 0 Unchecked, 1017.08ms Time] [2021-11-13 17:53:46,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 723 states. [2021-11-13 17:53:46,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 723 to 390. [2021-11-13 17:53:46,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 374 states have (on average 1.3368983957219251) internal successors, (500), 389 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:53:46,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 500 transitions. [2021-11-13 17:53:46,497 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 500 transitions. Word has length 77 [2021-11-13 17:53:46,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:53:46,497 INFO L470 AbstractCegarLoop]: Abstraction has 390 states and 500 transitions. [2021-11-13 17:53:46,498 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) [2021-11-13 17:53:46,498 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 500 transitions. [2021-11-13 17:53:46,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-13 17:53:46,500 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:53:46,500 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:53:46,500 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-13 17:53:46,500 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-13 17:53:46,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:53:46,501 INFO L85 PathProgramCache]: Analyzing trace with hash -1612110043, now seen corresponding path program 1 times [2021-11-13 17:53:46,501 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:53:46,502 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872642774] [2021-11-13 17:53:46,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:53:46,502 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:53:46,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:46,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:53:46,732 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:53:46,732 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872642774] [2021-11-13 17:53:46,732 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872642774] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:53:46,732 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:53:46,733 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-13 17:53:46,733 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734775109] [2021-11-13 17:53:46,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:53:46,734 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-13 17:53:46,734 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:53:46,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-13 17:53:46,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-13 17:53:46,735 INFO L87 Difference]: Start difference. First operand 390 states and 500 transitions. Second operand has 11 states, 11 states have (on average 7.0) internal successors, (77), 10 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) [2021-11-13 17:53:48,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:53:48,844 INFO L93 Difference]: Finished difference Result 1026 states and 1382 transitions. [2021-11-13 17:53:48,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-13 17:53:48,845 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.0) internal successors, (77), 10 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 [2021-11-13 17:53:48,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:53:48,851 INFO L225 Difference]: With dead ends: 1026 [2021-11-13 17:53:48,852 INFO L226 Difference]: Without dead ends: 883 [2021-11-13 17:53:48,853 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=216, Invalid=596, Unknown=0, NotChecked=0, Total=812 [2021-11-13 17:53:48,854 INFO L933 BasicCegarLoop]: 587 mSDtfsCounter, 2400 mSDsluCounter, 1995 mSDsCounter, 0 mSdLazyCounter, 1996 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1160.61ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2400 SdHoareTripleChecker+Valid, 2582 SdHoareTripleChecker+Invalid, 2035 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 17.71ms SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1996 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1438.04ms IncrementalHoareTripleChecker+Time [2021-11-13 17:53:48,854 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2400 Valid, 2582 Invalid, 2035 Unknown, 0 Unchecked, 17.71ms Time], IncrementalHoareTripleChecker [39 Valid, 1996 Invalid, 0 Unknown, 0 Unchecked, 1438.04ms Time] [2021-11-13 17:53:48,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883 states. [2021-11-13 17:53:48,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 390. [2021-11-13 17:53:48,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 374 states have (on average 1.3342245989304813) internal successors, (499), 389 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:53:48,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 499 transitions. [2021-11-13 17:53:48,923 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 499 transitions. Word has length 77 [2021-11-13 17:53:48,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:53:48,923 INFO L470 AbstractCegarLoop]: Abstraction has 390 states and 499 transitions. [2021-11-13 17:53:48,924 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.0) internal successors, (77), 10 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) [2021-11-13 17:53:48,924 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 499 transitions. [2021-11-13 17:53:48,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-13 17:53:48,926 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:53:48,926 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:53:48,926 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-13 17:53:48,927 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-13 17:53:48,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:53:48,927 INFO L85 PathProgramCache]: Analyzing trace with hash 1927792199, now seen corresponding path program 1 times [2021-11-13 17:53:48,928 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:53:48,928 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248054721] [2021-11-13 17:53:48,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:53:48,928 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:53:48,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:49,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:53:49,072 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:53:49,072 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248054721] [2021-11-13 17:53:49,073 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248054721] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:53:49,073 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:53:49,073 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-13 17:53:49,073 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727274916] [2021-11-13 17:53:49,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:53:49,074 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-13 17:53:49,075 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:53:49,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-13 17:53:49,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-13 17:53:49,076 INFO L87 Difference]: Start difference. First operand 390 states and 499 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) [2021-11-13 17:53:50,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:53:50,461 INFO L93 Difference]: Finished difference Result 829 states and 1108 transitions. [2021-11-13 17:53:50,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-13 17:53:50,462 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 [2021-11-13 17:53:50,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:53:50,468 INFO L225 Difference]: With dead ends: 829 [2021-11-13 17:53:50,468 INFO L226 Difference]: Without dead ends: 731 [2021-11-13 17:53:50,469 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-11-13 17:53:50,471 INFO L933 BasicCegarLoop]: 504 mSDtfsCounter, 2056 mSDsluCounter, 1407 mSDsCounter, 0 mSdLazyCounter, 1405 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 848.59ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2056 SdHoareTripleChecker+Valid, 1911 SdHoareTripleChecker+Invalid, 1437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.91ms SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1030.84ms IncrementalHoareTripleChecker+Time [2021-11-13 17:53:50,472 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2056 Valid, 1911 Invalid, 1437 Unknown, 0 Unchecked, 15.91ms Time], IncrementalHoareTripleChecker [32 Valid, 1405 Invalid, 0 Unknown, 0 Unchecked, 1030.84ms Time] [2021-11-13 17:53:50,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 731 states. [2021-11-13 17:53:50,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 731 to 390. [2021-11-13 17:53:50,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 374 states have (on average 1.3315508021390374) internal successors, (498), 389 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:53:50,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 498 transitions. [2021-11-13 17:53:50,552 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 498 transitions. Word has length 77 [2021-11-13 17:53:50,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:53:50,552 INFO L470 AbstractCegarLoop]: Abstraction has 390 states and 498 transitions. [2021-11-13 17:53:50,553 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) [2021-11-13 17:53:50,553 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 498 transitions. [2021-11-13 17:53:50,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-13 17:53:50,555 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:53:50,555 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:53:50,555 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-13 17:53:50,556 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-13 17:53:50,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:53:50,557 INFO L85 PathProgramCache]: Analyzing trace with hash -1181439000, now seen corresponding path program 1 times [2021-11-13 17:53:50,557 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:53:50,557 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121347443] [2021-11-13 17:53:50,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:53:50,558 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:53:50,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:50,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:53:50,755 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:53:50,755 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121347443] [2021-11-13 17:53:50,756 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121347443] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:53:50,756 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:53:50,756 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-13 17:53:50,756 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69512114] [2021-11-13 17:53:50,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:53:50,757 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-13 17:53:50,757 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:53:50,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-13 17:53:50,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-13 17:53:50,759 INFO L87 Difference]: Start difference. First operand 390 states and 498 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) [2021-11-13 17:53:52,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:53:52,183 INFO L93 Difference]: Finished difference Result 799 states and 1063 transitions. [2021-11-13 17:53:52,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-13 17:53:52,183 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 [2021-11-13 17:53:52,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:53:52,189 INFO L225 Difference]: With dead ends: 799 [2021-11-13 17:53:52,189 INFO L226 Difference]: Without dead ends: 723 [2021-11-13 17:53:52,190 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2021-11-13 17:53:52,191 INFO L933 BasicCegarLoop]: 405 mSDtfsCounter, 2612 mSDsluCounter, 1288 mSDsCounter, 0 mSdLazyCounter, 1268 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 840.11ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2612 SdHoareTripleChecker+Valid, 1693 SdHoareTripleChecker+Invalid, 1337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.57ms SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 1268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1022.30ms IncrementalHoareTripleChecker+Time [2021-11-13 17:53:52,192 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2612 Valid, 1693 Invalid, 1337 Unknown, 0 Unchecked, 15.57ms Time], IncrementalHoareTripleChecker [69 Valid, 1268 Invalid, 0 Unknown, 0 Unchecked, 1022.30ms Time] [2021-11-13 17:53:52,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 723 states. [2021-11-13 17:53:52,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 723 to 390. [2021-11-13 17:53:52,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 374 states have (on average 1.3288770053475936) internal successors, (497), 389 states have internal predecessors, (497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:53:52,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 497 transitions. [2021-11-13 17:53:52,271 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 497 transitions. Word has length 77 [2021-11-13 17:53:52,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:53:52,271 INFO L470 AbstractCegarLoop]: Abstraction has 390 states and 497 transitions. [2021-11-13 17:53:52,272 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) [2021-11-13 17:53:52,272 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 497 transitions. [2021-11-13 17:53:52,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-13 17:53:52,274 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:53:52,274 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:53:52,274 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-13 17:53:52,275 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-13 17:53:52,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:53:52,275 INFO L85 PathProgramCache]: Analyzing trace with hash 540447535, now seen corresponding path program 1 times [2021-11-13 17:53:52,276 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:53:52,276 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116415058] [2021-11-13 17:53:52,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:53:52,276 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:53:52,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:52,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:53:52,439 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:53:52,439 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116415058] [2021-11-13 17:53:52,439 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116415058] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:53:52,439 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:53:52,439 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-13 17:53:52,440 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242002194] [2021-11-13 17:53:52,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:53:52,440 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-13 17:53:52,441 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:53:52,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-13 17:53:52,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-13 17:53:52,442 INFO L87 Difference]: Start difference. First operand 390 states and 497 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) [2021-11-13 17:53:54,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:53:54,031 INFO L93 Difference]: Finished difference Result 799 states and 1061 transitions. [2021-11-13 17:53:54,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-13 17:53:54,032 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 [2021-11-13 17:53:54,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:53:54,037 INFO L225 Difference]: With dead ends: 799 [2021-11-13 17:53:54,038 INFO L226 Difference]: Without dead ends: 723 [2021-11-13 17:53:54,039 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-11-13 17:53:54,040 INFO L933 BasicCegarLoop]: 462 mSDtfsCounter, 1780 mSDsluCounter, 1764 mSDsCounter, 0 mSdLazyCounter, 1659 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1001.52ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1780 SdHoareTripleChecker+Valid, 2226 SdHoareTripleChecker+Invalid, 1703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 16.63ms SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 1659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1213.58ms IncrementalHoareTripleChecker+Time [2021-11-13 17:53:54,040 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1780 Valid, 2226 Invalid, 1703 Unknown, 0 Unchecked, 16.63ms Time], IncrementalHoareTripleChecker [44 Valid, 1659 Invalid, 0 Unknown, 0 Unchecked, 1213.58ms Time] [2021-11-13 17:53:54,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 723 states. [2021-11-13 17:53:54,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 723 to 390. [2021-11-13 17:53:54,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 374 states have (on average 1.3262032085561497) internal successors, (496), 389 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:53:54,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 496 transitions. [2021-11-13 17:53:54,115 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 496 transitions. Word has length 77 [2021-11-13 17:53:54,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:53:54,116 INFO L470 AbstractCegarLoop]: Abstraction has 390 states and 496 transitions. [2021-11-13 17:53:54,116 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) [2021-11-13 17:53:54,117 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 496 transitions. [2021-11-13 17:53:54,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-13 17:53:54,118 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:53:54,119 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:53:54,119 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-13 17:53:54,119 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)] === [2021-11-13 17:53:54,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:53:54,120 INFO L85 PathProgramCache]: Analyzing trace with hash -1913205315, now seen corresponding path program 1 times [2021-11-13 17:53:54,120 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:53:54,120 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173088055] [2021-11-13 17:53:54,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:53:54,121 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:53:54,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:54,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:53:54,285 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:53:54,285 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173088055] [2021-11-13 17:53:54,285 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173088055] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:53:54,286 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:53:54,286 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-13 17:53:54,286 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339852800] [2021-11-13 17:53:54,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:53:54,287 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-13 17:53:54,287 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:53:54,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-13 17:53:54,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-13 17:53:54,288 INFO L87 Difference]: Start difference. First operand 390 states and 496 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) [2021-11-13 17:53:55,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:53:55,502 INFO L93 Difference]: Finished difference Result 795 states and 1056 transitions. [2021-11-13 17:53:55,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-13 17:53:55,503 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 [2021-11-13 17:53:55,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:53:55,507 INFO L225 Difference]: With dead ends: 795 [2021-11-13 17:53:55,507 INFO L226 Difference]: Without dead ends: 723 [2021-11-13 17:53:55,508 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2021-11-13 17:53:55,509 INFO L933 BasicCegarLoop]: 394 mSDtfsCounter, 2370 mSDsluCounter, 1277 mSDsCounter, 0 mSdLazyCounter, 1243 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 733.16ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2370 SdHoareTripleChecker+Valid, 1671 SdHoareTripleChecker+Invalid, 1300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.70ms SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 1243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 889.72ms IncrementalHoareTripleChecker+Time [2021-11-13 17:53:55,509 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2370 Valid, 1671 Invalid, 1300 Unknown, 0 Unchecked, 14.70ms Time], IncrementalHoareTripleChecker [57 Valid, 1243 Invalid, 0 Unknown, 0 Unchecked, 889.72ms Time] [2021-11-13 17:53:55,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 723 states. [2021-11-13 17:53:55,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 723 to 390. [2021-11-13 17:53:55,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 374 states have (on average 1.3235294117647058) internal successors, (495), 389 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:53:55,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 495 transitions. [2021-11-13 17:53:55,589 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 495 transitions. Word has length 77 [2021-11-13 17:53:55,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:53:55,590 INFO L470 AbstractCegarLoop]: Abstraction has 390 states and 495 transitions. [2021-11-13 17:53:55,591 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) [2021-11-13 17:53:55,591 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 495 transitions. [2021-11-13 17:53:55,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-13 17:53:55,593 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:53:55,593 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:53:55,594 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-13 17:53:55,594 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-13 17:53:55,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:53:55,595 INFO L85 PathProgramCache]: Analyzing trace with hash -738667670, now seen corresponding path program 1 times [2021-11-13 17:53:55,595 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:53:55,595 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511923448] [2021-11-13 17:53:55,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:53:55,596 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:53:55,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:55,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:53:55,799 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:53:55,800 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511923448] [2021-11-13 17:53:55,800 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511923448] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:53:55,800 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:53:55,800 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-13 17:53:55,800 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965885315] [2021-11-13 17:53:55,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:53:55,801 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-13 17:53:55,801 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:53:55,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-13 17:53:55,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-13 17:53:55,803 INFO L87 Difference]: Start difference. First operand 390 states and 495 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) [2021-11-13 17:53:57,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:53:57,182 INFO L93 Difference]: Finished difference Result 804 states and 1063 transitions. [2021-11-13 17:53:57,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-13 17:53:57,182 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 [2021-11-13 17:53:57,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:53:57,187 INFO L225 Difference]: With dead ends: 804 [2021-11-13 17:53:57,187 INFO L226 Difference]: Without dead ends: 723 [2021-11-13 17:53:57,189 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2021-11-13 17:53:57,190 INFO L933 BasicCegarLoop]: 366 mSDtfsCounter, 2916 mSDsluCounter, 1205 mSDsCounter, 0 mSdLazyCounter, 1129 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 787.25ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2916 SdHoareTripleChecker+Valid, 1571 SdHoareTripleChecker+Invalid, 1202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.36ms SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 1129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 955.96ms IncrementalHoareTripleChecker+Time [2021-11-13 17:53:57,190 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2916 Valid, 1571 Invalid, 1202 Unknown, 0 Unchecked, 15.36ms Time], IncrementalHoareTripleChecker [73 Valid, 1129 Invalid, 0 Unknown, 0 Unchecked, 955.96ms Time] [2021-11-13 17:53:57,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 723 states. [2021-11-13 17:53:57,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 723 to 390. [2021-11-13 17:53:57,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 374 states have (on average 1.320855614973262) internal successors, (494), 389 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:53:57,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 494 transitions. [2021-11-13 17:53:57,265 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 494 transitions. Word has length 79 [2021-11-13 17:53:57,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:53:57,266 INFO L470 AbstractCegarLoop]: Abstraction has 390 states and 494 transitions. [2021-11-13 17:53:57,266 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) [2021-11-13 17:53:57,267 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 494 transitions. [2021-11-13 17:53:57,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-13 17:53:57,268 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:53:57,269 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:53:57,269 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-13 17:53:57,269 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-13 17:53:57,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:53:57,270 INFO L85 PathProgramCache]: Analyzing trace with hash 749865809, now seen corresponding path program 1 times [2021-11-13 17:53:57,270 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:53:57,270 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548400641] [2021-11-13 17:53:57,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:53:57,271 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:53:57,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:57,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:53:57,445 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:53:57,446 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548400641] [2021-11-13 17:53:57,446 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548400641] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:53:57,446 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:53:57,446 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-13 17:53:57,446 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931886105] [2021-11-13 17:53:57,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:53:57,447 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-13 17:53:57,447 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:53:57,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-13 17:53:57,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-13 17:53:57,448 INFO L87 Difference]: Start difference. First operand 390 states and 494 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) [2021-11-13 17:53:58,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:53:58,677 INFO L93 Difference]: Finished difference Result 776 states and 1021 transitions. [2021-11-13 17:53:58,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-13 17:53:58,678 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 [2021-11-13 17:53:58,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:53:58,682 INFO L225 Difference]: With dead ends: 776 [2021-11-13 17:53:58,683 INFO L226 Difference]: Without dead ends: 707 [2021-11-13 17:53:58,684 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-11-13 17:53:58,685 INFO L933 BasicCegarLoop]: 373 mSDtfsCounter, 2304 mSDsluCounter, 1581 mSDsCounter, 0 mSdLazyCounter, 1448 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 733.33ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2304 SdHoareTripleChecker+Valid, 1954 SdHoareTripleChecker+Invalid, 1547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.06ms SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 1448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 894.63ms IncrementalHoareTripleChecker+Time [2021-11-13 17:53:58,685 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2304 Valid, 1954 Invalid, 1547 Unknown, 0 Unchecked, 10.06ms Time], IncrementalHoareTripleChecker [99 Valid, 1448 Invalid, 0 Unknown, 0 Unchecked, 894.63ms Time] [2021-11-13 17:53:58,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2021-11-13 17:53:58,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 390. [2021-11-13 17:53:58,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 374 states have (on average 1.3181818181818181) internal successors, (493), 389 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:53:58,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 493 transitions. [2021-11-13 17:53:58,761 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 493 transitions. Word has length 79 [2021-11-13 17:53:58,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:53:58,762 INFO L470 AbstractCegarLoop]: Abstraction has 390 states and 493 transitions. [2021-11-13 17:53:58,762 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) [2021-11-13 17:53:58,762 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 493 transitions. [2021-11-13 17:53:58,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-13 17:53:58,764 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:53:58,764 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:53:58,764 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-13 17:53:58,765 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-13 17:53:58,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:53:58,765 INFO L85 PathProgramCache]: Analyzing trace with hash 261207811, now seen corresponding path program 1 times [2021-11-13 17:53:58,765 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:53:58,766 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386975992] [2021-11-13 17:53:58,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:53:58,766 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:53:58,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:53:58,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:53:58,909 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:53:58,909 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386975992] [2021-11-13 17:53:58,909 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386975992] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:53:58,909 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:53:58,910 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-13 17:53:58,910 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256250139] [2021-11-13 17:53:58,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:53:58,911 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-13 17:53:58,911 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:53:58,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-13 17:53:58,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-13 17:53:58,913 INFO L87 Difference]: Start difference. First operand 390 states and 493 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) [2021-11-13 17:54:00,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:54:00,311 INFO L93 Difference]: Finished difference Result 835 states and 1103 transitions. [2021-11-13 17:54:00,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-13 17:54:00,337 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 [2021-11-13 17:54:00,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:54:00,343 INFO L225 Difference]: With dead ends: 835 [2021-11-13 17:54:00,343 INFO L226 Difference]: Without dead ends: 731 [2021-11-13 17:54:00,344 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-11-13 17:54:00,345 INFO L933 BasicCegarLoop]: 504 mSDtfsCounter, 2159 mSDsluCounter, 1438 mSDsCounter, 0 mSdLazyCounter, 1403 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 827.14ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2159 SdHoareTripleChecker+Valid, 1942 SdHoareTripleChecker+Invalid, 1440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.32ms SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 1403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1020.29ms IncrementalHoareTripleChecker+Time [2021-11-13 17:54:00,345 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2159 Valid, 1942 Invalid, 1440 Unknown, 0 Unchecked, 14.32ms Time], IncrementalHoareTripleChecker [37 Valid, 1403 Invalid, 0 Unknown, 0 Unchecked, 1020.29ms Time] [2021-11-13 17:54:00,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 731 states. [2021-11-13 17:54:00,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 731 to 390. [2021-11-13 17:54:00,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 374 states have (on average 1.3155080213903743) internal successors, (492), 389 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:54:00,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 492 transitions. [2021-11-13 17:54:00,407 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 492 transitions. Word has length 79 [2021-11-13 17:54:00,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:54:00,408 INFO L470 AbstractCegarLoop]: Abstraction has 390 states and 492 transitions. [2021-11-13 17:54:00,408 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) [2021-11-13 17:54:00,408 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 492 transitions. [2021-11-13 17:54:00,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-13 17:54:00,410 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:54:00,410 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:54:00,410 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-13 17:54:00,411 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-13 17:54:00,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:54:00,412 INFO L85 PathProgramCache]: Analyzing trace with hash -1928072588, now seen corresponding path program 1 times [2021-11-13 17:54:00,412 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:54:00,412 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811021508] [2021-11-13 17:54:00,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:54:00,413 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:54:00,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:00,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:54:00,587 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:54:00,587 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811021508] [2021-11-13 17:54:00,587 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811021508] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:54:00,587 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:54:00,588 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-13 17:54:00,588 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472676578] [2021-11-13 17:54:00,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:54:00,590 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-13 17:54:00,590 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:54:00,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-13 17:54:00,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-13 17:54:00,591 INFO L87 Difference]: Start difference. First operand 390 states and 492 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) [2021-11-13 17:54:02,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:54:02,014 INFO L93 Difference]: Finished difference Result 740 states and 964 transitions. [2021-11-13 17:54:02,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-13 17:54:02,015 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 [2021-11-13 17:54:02,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:54:02,019 INFO L225 Difference]: With dead ends: 740 [2021-11-13 17:54:02,019 INFO L226 Difference]: Without dead ends: 723 [2021-11-13 17:54:02,020 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-11-13 17:54:02,020 INFO L933 BasicCegarLoop]: 488 mSDtfsCounter, 2360 mSDsluCounter, 1451 mSDsCounter, 0 mSdLazyCounter, 1419 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 872.67ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2360 SdHoareTripleChecker+Valid, 1939 SdHoareTripleChecker+Invalid, 1483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.38ms SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 1419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1060.04ms IncrementalHoareTripleChecker+Time [2021-11-13 17:54:02,021 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2360 Valid, 1939 Invalid, 1483 Unknown, 0 Unchecked, 14.38ms Time], IncrementalHoareTripleChecker [64 Valid, 1419 Invalid, 0 Unknown, 0 Unchecked, 1060.04ms Time] [2021-11-13 17:54:02,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 723 states. [2021-11-13 17:54:02,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 723 to 390. [2021-11-13 17:54:02,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 374 states have (on average 1.3128342245989304) internal successors, (491), 389 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:54:02,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 491 transitions. [2021-11-13 17:54:02,077 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 491 transitions. Word has length 79 [2021-11-13 17:54:02,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:54:02,078 INFO L470 AbstractCegarLoop]: Abstraction has 390 states and 491 transitions. [2021-11-13 17:54:02,078 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) [2021-11-13 17:54:02,079 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 491 transitions. [2021-11-13 17:54:02,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-13 17:54:02,080 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:54:02,081 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:54:02,081 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-13 17:54:02,081 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-13 17:54:02,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:54:02,082 INFO L85 PathProgramCache]: Analyzing trace with hash -439539109, now seen corresponding path program 1 times [2021-11-13 17:54:02,082 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:54:02,083 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270237583] [2021-11-13 17:54:02,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:54:02,083 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:54:02,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:02,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:54:02,250 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:54:02,251 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270237583] [2021-11-13 17:54:02,251 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270237583] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:54:02,251 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:54:02,251 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-13 17:54:02,251 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734136888] [2021-11-13 17:54:02,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:54:02,252 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-13 17:54:02,252 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:54:02,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-13 17:54:02,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-13 17:54:02,256 INFO L87 Difference]: Start difference. First operand 390 states and 491 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) [2021-11-13 17:54:03,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:54:03,773 INFO L93 Difference]: Finished difference Result 712 states and 922 transitions. [2021-11-13 17:54:03,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-13 17:54:03,773 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 [2021-11-13 17:54:03,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:54:03,777 INFO L225 Difference]: With dead ends: 712 [2021-11-13 17:54:03,777 INFO L226 Difference]: Without dead ends: 707 [2021-11-13 17:54:03,778 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-11-13 17:54:03,779 INFO L933 BasicCegarLoop]: 385 mSDtfsCounter, 2271 mSDsluCounter, 1618 mSDsCounter, 0 mSdLazyCounter, 1461 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 929.23ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2271 SdHoareTripleChecker+Valid, 2003 SdHoareTripleChecker+Invalid, 1559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.45ms SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 1461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1127.87ms IncrementalHoareTripleChecker+Time [2021-11-13 17:54:03,779 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2271 Valid, 2003 Invalid, 1559 Unknown, 0 Unchecked, 13.45ms Time], IncrementalHoareTripleChecker [98 Valid, 1461 Invalid, 0 Unknown, 0 Unchecked, 1127.87ms Time] [2021-11-13 17:54:03,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2021-11-13 17:54:03,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 390. [2021-11-13 17:54:03,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 374 states have (on average 1.3101604278074865) internal successors, (490), 389 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:54:03,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 490 transitions. [2021-11-13 17:54:03,851 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 490 transitions. Word has length 79 [2021-11-13 17:54:03,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:54:03,851 INFO L470 AbstractCegarLoop]: Abstraction has 390 states and 490 transitions. [2021-11-13 17:54:03,851 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) [2021-11-13 17:54:03,852 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 490 transitions. [2021-11-13 17:54:03,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-13 17:54:03,853 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:54:03,854 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:54:03,854 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-13 17:54:03,854 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-13 17:54:03,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:54:03,855 INFO L85 PathProgramCache]: Analyzing trace with hash -845454890, now seen corresponding path program 1 times [2021-11-13 17:54:03,855 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:54:03,855 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497615723] [2021-11-13 17:54:03,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:54:03,856 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:54:03,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:04,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:54:04,120 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:54:04,120 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497615723] [2021-11-13 17:54:04,121 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497615723] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:54:04,121 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:54:04,121 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-13 17:54:04,121 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831179231] [2021-11-13 17:54:04,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:54:04,123 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-13 17:54:04,124 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:54:04,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-13 17:54:04,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-11-13 17:54:04,125 INFO L87 Difference]: Start difference. First operand 390 states and 490 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) [2021-11-13 17:54:06,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:54:06,594 INFO L93 Difference]: Finished difference Result 1041 states and 1397 transitions. [2021-11-13 17:54:06,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-13 17:54:06,594 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 [2021-11-13 17:54:06,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:54:06,600 INFO L225 Difference]: With dead ends: 1041 [2021-11-13 17:54:06,600 INFO L226 Difference]: Without dead ends: 1036 [2021-11-13 17:54:06,601 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-11-13 17:54:06,602 INFO L933 BasicCegarLoop]: 434 mSDtfsCounter, 4648 mSDsluCounter, 1454 mSDsCounter, 0 mSdLazyCounter, 1492 mSolverCounterSat, 553 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1200.25ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4648 SdHoareTripleChecker+Valid, 1888 SdHoareTripleChecker+Invalid, 2045 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 16.95ms SdHoareTripleChecker+Time, 553 IncrementalHoareTripleChecker+Valid, 1492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1458.27ms IncrementalHoareTripleChecker+Time [2021-11-13 17:54:06,603 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4648 Valid, 1888 Invalid, 2045 Unknown, 0 Unchecked, 16.95ms Time], IncrementalHoareTripleChecker [553 Valid, 1492 Invalid, 0 Unknown, 0 Unchecked, 1458.27ms Time] [2021-11-13 17:54:06,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1036 states. [2021-11-13 17:54:06,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1036 to 394. [2021-11-13 17:54:06,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 378 states have (on average 1.306878306878307) internal successors, (494), 393 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:54:06,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 494 transitions. [2021-11-13 17:54:06,692 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 494 transitions. Word has length 79 [2021-11-13 17:54:06,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:54:06,693 INFO L470 AbstractCegarLoop]: Abstraction has 394 states and 494 transitions. [2021-11-13 17:54:06,693 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) [2021-11-13 17:54:06,693 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 494 transitions. [2021-11-13 17:54:06,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-13 17:54:06,695 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:54:06,695 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:54:06,695 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-13 17:54:06,696 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-13 17:54:06,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:54:06,697 INFO L85 PathProgramCache]: Analyzing trace with hash 88191580, now seen corresponding path program 1 times [2021-11-13 17:54:06,697 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:54:06,697 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861827309] [2021-11-13 17:54:06,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:54:06,698 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:54:06,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:06,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:54:06,859 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:54:06,860 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861827309] [2021-11-13 17:54:06,860 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861827309] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:54:06,860 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:54:06,860 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-13 17:54:06,860 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601288542] [2021-11-13 17:54:06,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:54:06,861 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-13 17:54:06,861 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:54:06,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-13 17:54:06,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-13 17:54:06,862 INFO L87 Difference]: Start difference. First operand 394 states and 494 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) [2021-11-13 17:54:08,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:54:08,413 INFO L93 Difference]: Finished difference Result 773 states and 1013 transitions. [2021-11-13 17:54:08,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-13 17:54:08,414 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 [2021-11-13 17:54:08,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:54:08,418 INFO L225 Difference]: With dead ends: 773 [2021-11-13 17:54:08,418 INFO L226 Difference]: Without dead ends: 707 [2021-11-13 17:54:08,419 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-11-13 17:54:08,419 INFO L933 BasicCegarLoop]: 382 mSDtfsCounter, 2269 mSDsluCounter, 1612 mSDsCounter, 0 mSdLazyCounter, 1446 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 906.59ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2269 SdHoareTripleChecker+Valid, 1994 SdHoareTripleChecker+Invalid, 1544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.06ms SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 1446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1105.09ms IncrementalHoareTripleChecker+Time [2021-11-13 17:54:08,420 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2269 Valid, 1994 Invalid, 1544 Unknown, 0 Unchecked, 14.06ms Time], IncrementalHoareTripleChecker [98 Valid, 1446 Invalid, 0 Unknown, 0 Unchecked, 1105.09ms Time] [2021-11-13 17:54:08,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2021-11-13 17:54:08,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 394. [2021-11-13 17:54:08,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 378 states have (on average 1.3042328042328042) internal successors, (493), 393 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:54:08,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 493 transitions. [2021-11-13 17:54:08,509 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 493 transitions. Word has length 79 [2021-11-13 17:54:08,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:54:08,510 INFO L470 AbstractCegarLoop]: Abstraction has 394 states and 493 transitions. [2021-11-13 17:54:08,510 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) [2021-11-13 17:54:08,511 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 493 transitions. [2021-11-13 17:54:08,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-13 17:54:08,512 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:54:08,513 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:54:08,513 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-13 17:54:08,513 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-13 17:54:08,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:54:08,514 INFO L85 PathProgramCache]: Analyzing trace with hash 310074252, now seen corresponding path program 1 times [2021-11-13 17:54:08,514 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:54:08,514 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307945987] [2021-11-13 17:54:08,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:54:08,515 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:54:08,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:08,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:54:08,677 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:54:08,677 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307945987] [2021-11-13 17:54:08,677 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307945987] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:54:08,678 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:54:08,678 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-13 17:54:08,678 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175312963] [2021-11-13 17:54:08,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:54:08,679 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-13 17:54:08,679 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:54:08,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-13 17:54:08,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-13 17:54:08,680 INFO L87 Difference]: Start difference. First operand 394 states and 493 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) [2021-11-13 17:54:10,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:54:10,060 INFO L93 Difference]: Finished difference Result 776 states and 1015 transitions. [2021-11-13 17:54:10,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-13 17:54:10,060 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 [2021-11-13 17:54:10,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:54:10,065 INFO L225 Difference]: With dead ends: 776 [2021-11-13 17:54:10,065 INFO L226 Difference]: Without dead ends: 707 [2021-11-13 17:54:10,066 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-11-13 17:54:10,067 INFO L933 BasicCegarLoop]: 382 mSDtfsCounter, 2268 mSDsluCounter, 1608 mSDsCounter, 0 mSdLazyCounter, 1442 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 794.68ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2268 SdHoareTripleChecker+Valid, 1990 SdHoareTripleChecker+Invalid, 1540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.49ms SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 1442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 973.89ms IncrementalHoareTripleChecker+Time [2021-11-13 17:54:10,068 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2268 Valid, 1990 Invalid, 1540 Unknown, 0 Unchecked, 11.49ms Time], IncrementalHoareTripleChecker [98 Valid, 1442 Invalid, 0 Unknown, 0 Unchecked, 973.89ms Time] [2021-11-13 17:54:10,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2021-11-13 17:54:10,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 394. [2021-11-13 17:54:10,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 378 states have (on average 1.3015873015873016) internal successors, (492), 393 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:54:10,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 492 transitions. [2021-11-13 17:54:10,156 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 492 transitions. Word has length 79 [2021-11-13 17:54:10,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:54:10,156 INFO L470 AbstractCegarLoop]: Abstraction has 394 states and 492 transitions. [2021-11-13 17:54:10,156 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) [2021-11-13 17:54:10,157 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 492 transitions. [2021-11-13 17:54:10,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-13 17:54:10,158 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:54:10,159 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:54:10,159 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-13 17:54:10,159 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-13 17:54:10,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:54:10,160 INFO L85 PathProgramCache]: Analyzing trace with hash -274145819, now seen corresponding path program 1 times [2021-11-13 17:54:10,160 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:54:10,160 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97690919] [2021-11-13 17:54:10,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:54:10,161 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:54:10,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:10,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:54:10,304 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:54:10,304 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97690919] [2021-11-13 17:54:10,304 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97690919] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:54:10,305 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:54:10,305 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-13 17:54:10,305 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078758855] [2021-11-13 17:54:10,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:54:10,306 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-13 17:54:10,306 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:54:10,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-13 17:54:10,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-13 17:54:10,307 INFO L87 Difference]: Start difference. First operand 394 states and 492 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) [2021-11-13 17:54:11,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:54:11,505 INFO L93 Difference]: Finished difference Result 808 states and 1057 transitions. [2021-11-13 17:54:11,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-13 17:54:11,505 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 [2021-11-13 17:54:11,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:54:11,509 INFO L225 Difference]: With dead ends: 808 [2021-11-13 17:54:11,509 INFO L226 Difference]: Without dead ends: 727 [2021-11-13 17:54:11,510 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-11-13 17:54:11,511 INFO L933 BasicCegarLoop]: 488 mSDtfsCounter, 2071 mSDsluCounter, 1447 mSDsCounter, 0 mSdLazyCounter, 1390 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 680.93ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2071 SdHoareTripleChecker+Valid, 1935 SdHoareTripleChecker+Invalid, 1449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.85ms SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 1390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 849.96ms IncrementalHoareTripleChecker+Time [2021-11-13 17:54:11,511 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2071 Valid, 1935 Invalid, 1449 Unknown, 0 Unchecked, 9.85ms Time], IncrementalHoareTripleChecker [59 Valid, 1390 Invalid, 0 Unknown, 0 Unchecked, 849.96ms Time] [2021-11-13 17:54:11,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 727 states. [2021-11-13 17:54:11,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 727 to 394. [2021-11-13 17:54:11,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 378 states have (on average 1.2989417989417988) internal successors, (491), 393 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:54:11,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 491 transitions. [2021-11-13 17:54:11,593 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 491 transitions. Word has length 79 [2021-11-13 17:54:11,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:54:11,594 INFO L470 AbstractCegarLoop]: Abstraction has 394 states and 491 transitions. [2021-11-13 17:54:11,594 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) [2021-11-13 17:54:11,594 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 491 transitions. [2021-11-13 17:54:11,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-13 17:54:11,596 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:54:11,596 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:54:11,596 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-11-13 17:54:11,596 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-13 17:54:11,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:54:11,597 INFO L85 PathProgramCache]: Analyzing trace with hash 1678498669, now seen corresponding path program 1 times [2021-11-13 17:54:11,597 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:54:11,598 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635860673] [2021-11-13 17:54:11,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:54:11,598 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:54:11,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:11,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:54:11,854 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:54:11,854 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635860673] [2021-11-13 17:54:11,854 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635860673] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:54:11,855 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:54:11,855 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-13 17:54:11,855 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966835921] [2021-11-13 17:54:11,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:54:11,856 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-13 17:54:11,856 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:54:11,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-13 17:54:11,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-11-13 17:54:11,857 INFO L87 Difference]: Start difference. First operand 394 states and 491 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) [2021-11-13 17:54:14,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:54:14,484 INFO L93 Difference]: Finished difference Result 1105 states and 1490 transitions. [2021-11-13 17:54:14,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-13 17:54:14,485 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 [2021-11-13 17:54:14,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:54:14,490 INFO L225 Difference]: With dead ends: 1105 [2021-11-13 17:54:14,490 INFO L226 Difference]: Without dead ends: 1036 [2021-11-13 17:54:14,491 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-11-13 17:54:14,492 INFO L933 BasicCegarLoop]: 445 mSDtfsCounter, 4608 mSDsluCounter, 1478 mSDsCounter, 0 mSdLazyCounter, 1493 mSolverCounterSat, 546 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1217.03ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4608 SdHoareTripleChecker+Valid, 1923 SdHoareTripleChecker+Invalid, 2039 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 17.61ms SdHoareTripleChecker+Time, 546 IncrementalHoareTripleChecker+Valid, 1493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1482.82ms IncrementalHoareTripleChecker+Time [2021-11-13 17:54:14,492 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4608 Valid, 1923 Invalid, 2039 Unknown, 0 Unchecked, 17.61ms Time], IncrementalHoareTripleChecker [546 Valid, 1493 Invalid, 0 Unknown, 0 Unchecked, 1482.82ms Time] [2021-11-13 17:54:14,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1036 states. [2021-11-13 17:54:14,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1036 to 398. [2021-11-13 17:54:14,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 382 states have (on average 1.2958115183246073) internal successors, (495), 397 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:54:14,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 495 transitions. [2021-11-13 17:54:14,584 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 495 transitions. Word has length 79 [2021-11-13 17:54:14,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:54:14,584 INFO L470 AbstractCegarLoop]: Abstraction has 398 states and 495 transitions. [2021-11-13 17:54:14,585 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) [2021-11-13 17:54:14,585 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 495 transitions. [2021-11-13 17:54:14,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-13 17:54:14,587 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:54:14,587 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:54:14,587 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-11-13 17:54:14,587 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-13 17:54:14,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:54:14,588 INFO L85 PathProgramCache]: Analyzing trace with hash 861543357, now seen corresponding path program 1 times [2021-11-13 17:54:14,588 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:54:14,589 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711030704] [2021-11-13 17:54:14,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:54:14,589 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:54:14,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:14,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:54:14,738 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:54:14,738 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711030704] [2021-11-13 17:54:14,739 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711030704] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:54:14,739 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:54:14,739 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-13 17:54:14,739 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961924848] [2021-11-13 17:54:14,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:54:14,740 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-13 17:54:14,740 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:54:14,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-13 17:54:14,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-13 17:54:14,742 INFO L87 Difference]: Start difference. First operand 398 states and 495 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) [2021-11-13 17:54:16,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:54:16,022 INFO L93 Difference]: Finished difference Result 773 states and 1009 transitions. [2021-11-13 17:54:16,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-13 17:54:16,023 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 [2021-11-13 17:54:16,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:54:16,026 INFO L225 Difference]: With dead ends: 773 [2021-11-13 17:54:16,027 INFO L226 Difference]: Without dead ends: 707 [2021-11-13 17:54:16,027 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-11-13 17:54:16,028 INFO L933 BasicCegarLoop]: 390 mSDtfsCounter, 2242 mSDsluCounter, 1636 mSDsCounter, 0 mSdLazyCounter, 1451 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 728.84ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2242 SdHoareTripleChecker+Valid, 2026 SdHoareTripleChecker+Invalid, 1548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.89ms SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 1451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 912.59ms IncrementalHoareTripleChecker+Time [2021-11-13 17:54:16,028 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2242 Valid, 2026 Invalid, 1548 Unknown, 0 Unchecked, 9.89ms Time], IncrementalHoareTripleChecker [97 Valid, 1451 Invalid, 0 Unknown, 0 Unchecked, 912.59ms Time] [2021-11-13 17:54:16,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2021-11-13 17:54:16,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 398. [2021-11-13 17:54:16,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 382 states have (on average 1.293193717277487) internal successors, (494), 397 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:54:16,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 494 transitions. [2021-11-13 17:54:16,095 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 494 transitions. Word has length 79 [2021-11-13 17:54:16,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:54:16,096 INFO L470 AbstractCegarLoop]: Abstraction has 398 states and 494 transitions. [2021-11-13 17:54:16,096 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) [2021-11-13 17:54:16,096 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 494 transitions. [2021-11-13 17:54:16,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-13 17:54:16,098 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:54:16,098 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:54:16,098 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-11-13 17:54:16,098 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-13 17:54:16,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:54:16,099 INFO L85 PathProgramCache]: Analyzing trace with hash -861388972, now seen corresponding path program 1 times [2021-11-13 17:54:16,099 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:54:16,100 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524018378] [2021-11-13 17:54:16,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:54:16,100 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:54:16,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:16,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:54:16,234 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:54:16,234 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524018378] [2021-11-13 17:54:16,234 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524018378] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:54:16,234 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:54:16,235 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-13 17:54:16,235 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662495778] [2021-11-13 17:54:16,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:54:16,236 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-13 17:54:16,236 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:54:16,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-13 17:54:16,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-13 17:54:16,237 INFO L87 Difference]: Start difference. First operand 398 states and 494 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) [2021-11-13 17:54:17,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:54:17,376 INFO L93 Difference]: Finished difference Result 712 states and 915 transitions. [2021-11-13 17:54:17,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-13 17:54:17,377 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 [2021-11-13 17:54:17,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:54:17,380 INFO L225 Difference]: With dead ends: 712 [2021-11-13 17:54:17,380 INFO L226 Difference]: Without dead ends: 707 [2021-11-13 17:54:17,381 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-11-13 17:54:17,381 INFO L933 BasicCegarLoop]: 443 mSDtfsCounter, 1829 mSDsluCounter, 1321 mSDsCounter, 0 mSdLazyCounter, 1304 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 633.23ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1829 SdHoareTripleChecker+Valid, 1764 SdHoareTripleChecker+Invalid, 1390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.65ms SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 1304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 790.54ms IncrementalHoareTripleChecker+Time [2021-11-13 17:54:17,381 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1829 Valid, 1764 Invalid, 1390 Unknown, 0 Unchecked, 8.65ms Time], IncrementalHoareTripleChecker [86 Valid, 1304 Invalid, 0 Unknown, 0 Unchecked, 790.54ms Time] [2021-11-13 17:54:17,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2021-11-13 17:54:17,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 398. [2021-11-13 17:54:17,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 382 states have (on average 1.2905759162303665) internal successors, (493), 397 states have internal predecessors, (493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:54:17,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 493 transitions. [2021-11-13 17:54:17,453 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 493 transitions. Word has length 79 [2021-11-13 17:54:17,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:54:17,454 INFO L470 AbstractCegarLoop]: Abstraction has 398 states and 493 transitions. [2021-11-13 17:54:17,454 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) [2021-11-13 17:54:17,454 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 493 transitions. [2021-11-13 17:54:17,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-13 17:54:17,455 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:54:17,455 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:54:17,456 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-11-13 17:54:17,456 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-13 17:54:17,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:54:17,456 INFO L85 PathProgramCache]: Analyzing trace with hash 1854145171, now seen corresponding path program 1 times [2021-11-13 17:54:17,457 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:54:17,457 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387298784] [2021-11-13 17:54:17,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:54:17,457 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:54:17,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:17,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:54:17,606 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:54:17,606 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387298784] [2021-11-13 17:54:17,606 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387298784] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:54:17,607 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:54:17,607 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-13 17:54:17,607 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358222199] [2021-11-13 17:54:17,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:54:17,608 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-13 17:54:17,608 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:54:17,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-13 17:54:17,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-13 17:54:17,609 INFO L87 Difference]: Start difference. First operand 398 states and 493 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) [2021-11-13 17:54:18,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:54:18,884 INFO L93 Difference]: Finished difference Result 773 states and 1006 transitions. [2021-11-13 17:54:18,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-13 17:54:18,885 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 [2021-11-13 17:54:18,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:54:18,889 INFO L225 Difference]: With dead ends: 773 [2021-11-13 17:54:18,889 INFO L226 Difference]: Without dead ends: 707 [2021-11-13 17:54:18,890 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-11-13 17:54:18,890 INFO L933 BasicCegarLoop]: 438 mSDtfsCounter, 2152 mSDsluCounter, 1778 mSDsCounter, 0 mSdLazyCounter, 1579 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 727.78ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2152 SdHoareTripleChecker+Valid, 2216 SdHoareTripleChecker+Invalid, 1674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.42ms SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 1579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 894.80ms IncrementalHoareTripleChecker+Time [2021-11-13 17:54:18,891 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2152 Valid, 2216 Invalid, 1674 Unknown, 0 Unchecked, 9.42ms Time], IncrementalHoareTripleChecker [95 Valid, 1579 Invalid, 0 Unknown, 0 Unchecked, 894.80ms Time] [2021-11-13 17:54:18,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2021-11-13 17:54:18,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 398. [2021-11-13 17:54:18,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 382 states have (on average 1.287958115183246) internal successors, (492), 397 states have internal predecessors, (492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:54:18,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 492 transitions. [2021-11-13 17:54:18,954 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 492 transitions. Word has length 79 [2021-11-13 17:54:18,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:54:18,955 INFO L470 AbstractCegarLoop]: Abstraction has 398 states and 492 transitions. [2021-11-13 17:54:18,955 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) [2021-11-13 17:54:18,955 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 492 transitions. [2021-11-13 17:54:18,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-13 17:54:18,956 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:54:18,957 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:54:18,957 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-11-13 17:54:18,957 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)] === [2021-11-13 17:54:18,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:54:18,958 INFO L85 PathProgramCache]: Analyzing trace with hash -403243016, now seen corresponding path program 1 times [2021-11-13 17:54:18,958 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:54:18,958 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107680518] [2021-11-13 17:54:18,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:54:18,959 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:54:18,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:19,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:54:19,098 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:54:19,099 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107680518] [2021-11-13 17:54:19,099 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107680518] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:54:19,099 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:54:19,099 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-13 17:54:19,100 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215718607] [2021-11-13 17:54:19,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:54:19,100 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-13 17:54:19,100 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:54:19,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-13 17:54:19,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-13 17:54:19,101 INFO L87 Difference]: Start difference. First operand 398 states and 492 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) [2021-11-13 17:54:20,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:54:20,265 INFO L93 Difference]: Finished difference Result 773 states and 1005 transitions. [2021-11-13 17:54:20,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-13 17:54:20,266 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 [2021-11-13 17:54:20,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:54:20,269 INFO L225 Difference]: With dead ends: 773 [2021-11-13 17:54:20,269 INFO L226 Difference]: Without dead ends: 707 [2021-11-13 17:54:20,270 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-11-13 17:54:20,271 INFO L933 BasicCegarLoop]: 443 mSDtfsCounter, 2419 mSDsluCounter, 1315 mSDsCounter, 0 mSdLazyCounter, 1291 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 656.23ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2419 SdHoareTripleChecker+Valid, 1758 SdHoareTripleChecker+Invalid, 1406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.69ms SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 1291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 803.32ms IncrementalHoareTripleChecker+Time [2021-11-13 17:54:20,271 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2419 Valid, 1758 Invalid, 1406 Unknown, 0 Unchecked, 9.69ms Time], IncrementalHoareTripleChecker [115 Valid, 1291 Invalid, 0 Unknown, 0 Unchecked, 803.32ms Time] [2021-11-13 17:54:20,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2021-11-13 17:54:20,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 398. [2021-11-13 17:54:20,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 382 states have (on average 1.2853403141361257) internal successors, (491), 397 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:54:20,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 491 transitions. [2021-11-13 17:54:20,356 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 491 transitions. Word has length 79 [2021-11-13 17:54:20,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:54:20,357 INFO L470 AbstractCegarLoop]: Abstraction has 398 states and 491 transitions. [2021-11-13 17:54:20,357 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) [2021-11-13 17:54:20,357 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 491 transitions. [2021-11-13 17:54:20,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-13 17:54:20,358 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:54:20,359 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:54:20,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-11-13 17:54:20,359 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-13 17:54:20,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:54:20,360 INFO L85 PathProgramCache]: Analyzing trace with hash 1967609083, now seen corresponding path program 1 times [2021-11-13 17:54:20,360 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:54:20,360 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933119832] [2021-11-13 17:54:20,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:54:20,361 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:54:20,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:20,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:54:20,491 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:54:20,491 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933119832] [2021-11-13 17:54:20,491 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933119832] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:54:20,491 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:54:20,491 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-13 17:54:20,492 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573956260] [2021-11-13 17:54:20,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:54:20,492 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-13 17:54:20,492 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:54:20,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-13 17:54:20,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-13 17:54:20,493 INFO L87 Difference]: Start difference. First operand 398 states and 491 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) [2021-11-13 17:54:21,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:54:21,811 INFO L93 Difference]: Finished difference Result 712 states and 910 transitions. [2021-11-13 17:54:21,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-13 17:54:21,812 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 [2021-11-13 17:54:21,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:54:21,824 INFO L225 Difference]: With dead ends: 712 [2021-11-13 17:54:21,824 INFO L226 Difference]: Without dead ends: 707 [2021-11-13 17:54:21,825 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-11-13 17:54:21,826 INFO L933 BasicCegarLoop]: 446 mSDtfsCounter, 2379 mSDsluCounter, 1326 mSDsCounter, 0 mSdLazyCounter, 1291 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 740.80ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2379 SdHoareTripleChecker+Valid, 1772 SdHoareTripleChecker+Invalid, 1407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.71ms SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 1291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 903.26ms IncrementalHoareTripleChecker+Time [2021-11-13 17:54:21,826 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2379 Valid, 1772 Invalid, 1407 Unknown, 0 Unchecked, 11.71ms Time], IncrementalHoareTripleChecker [116 Valid, 1291 Invalid, 0 Unknown, 0 Unchecked, 903.26ms Time] [2021-11-13 17:54:21,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2021-11-13 17:54:21,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 394. [2021-11-13 17:54:21,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 378 states have (on average 1.2857142857142858) internal successors, (486), 393 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:54:21,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 486 transitions. [2021-11-13 17:54:21,926 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 486 transitions. Word has length 80 [2021-11-13 17:54:21,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:54:21,927 INFO L470 AbstractCegarLoop]: Abstraction has 394 states and 486 transitions. [2021-11-13 17:54:21,927 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) [2021-11-13 17:54:21,927 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 486 transitions. [2021-11-13 17:54:21,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-13 17:54:21,928 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:54:21,929 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:54:21,929 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-11-13 17:54:21,929 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-13 17:54:21,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:54:21,930 INFO L85 PathProgramCache]: Analyzing trace with hash 724648618, now seen corresponding path program 1 times [2021-11-13 17:54:21,930 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:54:21,930 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435068884] [2021-11-13 17:54:21,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:54:21,931 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:54:21,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:22,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:54:22,067 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:54:22,067 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435068884] [2021-11-13 17:54:22,067 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435068884] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:54:22,067 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:54:22,067 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-13 17:54:22,068 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750141485] [2021-11-13 17:54:22,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:54:22,068 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-13 17:54:22,069 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:54:22,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-13 17:54:22,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-13 17:54:22,070 INFO L87 Difference]: Start difference. First operand 394 states and 486 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) [2021-11-13 17:54:23,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:54:23,177 INFO L93 Difference]: Finished difference Result 776 states and 1005 transitions. [2021-11-13 17:54:23,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-13 17:54:23,177 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 [2021-11-13 17:54:23,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:54:23,181 INFO L225 Difference]: With dead ends: 776 [2021-11-13 17:54:23,181 INFO L226 Difference]: Without dead ends: 707 [2021-11-13 17:54:23,182 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=296, Unknown=0, NotChecked=0, Total=420 [2021-11-13 17:54:23,182 INFO L933 BasicCegarLoop]: 450 mSDtfsCounter, 1247 mSDsluCounter, 1340 mSDsCounter, 0 mSdLazyCounter, 1291 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 623.99ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1247 SdHoareTripleChecker+Valid, 1790 SdHoareTripleChecker+Invalid, 1350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.76ms SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 1291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 761.69ms IncrementalHoareTripleChecker+Time [2021-11-13 17:54:23,183 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1247 Valid, 1790 Invalid, 1350 Unknown, 0 Unchecked, 7.76ms Time], IncrementalHoareTripleChecker [59 Valid, 1291 Invalid, 0 Unknown, 0 Unchecked, 761.69ms Time] [2021-11-13 17:54:23,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2021-11-13 17:54:23,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 390. [2021-11-13 17:54:23,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 374 states have (on average 1.286096256684492) internal successors, (481), 389 states have internal predecessors, (481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:54:23,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 481 transitions. [2021-11-13 17:54:23,246 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 481 transitions. Word has length 80 [2021-11-13 17:54:23,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:54:23,246 INFO L470 AbstractCegarLoop]: Abstraction has 390 states and 481 transitions. [2021-11-13 17:54:23,246 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) [2021-11-13 17:54:23,246 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 481 transitions. [2021-11-13 17:54:23,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-13 17:54:23,247 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:54:23,247 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:54:23,247 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-11-13 17:54:23,248 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-13 17:54:23,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:54:23,248 INFO L85 PathProgramCache]: Analyzing trace with hash -1565003779, now seen corresponding path program 1 times [2021-11-13 17:54:23,248 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:54:23,249 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714848766] [2021-11-13 17:54:23,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:54:23,249 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:54:23,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:23,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:54:23,396 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:54:23,396 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714848766] [2021-11-13 17:54:23,396 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714848766] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:54:23,397 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:54:23,397 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-13 17:54:23,397 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266651821] [2021-11-13 17:54:23,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:54:23,398 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-13 17:54:23,398 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:54:23,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-13 17:54:23,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-13 17:54:23,399 INFO L87 Difference]: Start difference. First operand 390 states and 481 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) [2021-11-13 17:54:24,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:54:24,916 INFO L93 Difference]: Finished difference Result 771 states and 999 transitions. [2021-11-13 17:54:24,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-13 17:54:24,917 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 [2021-11-13 17:54:24,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:54:24,920 INFO L225 Difference]: With dead ends: 771 [2021-11-13 17:54:24,920 INFO L226 Difference]: Without dead ends: 706 [2021-11-13 17:54:24,921 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2021-11-13 17:54:24,922 INFO L933 BasicCegarLoop]: 397 mSDtfsCounter, 2208 mSDsluCounter, 1658 mSDsCounter, 0 mSdLazyCounter, 1415 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 853.49ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2208 SdHoareTripleChecker+Valid, 2055 SdHoareTripleChecker+Invalid, 1512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.62ms SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 1415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1031.87ms IncrementalHoareTripleChecker+Time [2021-11-13 17:54:24,922 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2208 Valid, 2055 Invalid, 1512 Unknown, 0 Unchecked, 12.62ms Time], IncrementalHoareTripleChecker [97 Valid, 1415 Invalid, 0 Unknown, 0 Unchecked, 1031.87ms Time] [2021-11-13 17:54:24,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2021-11-13 17:54:25,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 389. [2021-11-13 17:54:25,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 373 states have (on average 1.2841823056300268) internal successors, (479), 388 states have internal predecessors, (479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:54:25,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 479 transitions. [2021-11-13 17:54:25,034 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 479 transitions. Word has length 80 [2021-11-13 17:54:25,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:54:25,034 INFO L470 AbstractCegarLoop]: Abstraction has 389 states and 479 transitions. [2021-11-13 17:54:25,035 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) [2021-11-13 17:54:25,035 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 479 transitions. [2021-11-13 17:54:25,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-13 17:54:25,036 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:54:25,037 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:54:25,037 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-11-13 17:54:25,037 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-13 17:54:25,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:54:25,038 INFO L85 PathProgramCache]: Analyzing trace with hash 484129246, now seen corresponding path program 1 times [2021-11-13 17:54:25,038 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:54:25,038 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208118143] [2021-11-13 17:54:25,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:54:25,039 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:54:25,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:25,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:54:25,507 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:54:25,507 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208118143] [2021-11-13 17:54:25,507 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208118143] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:54:25,508 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:54:25,508 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-13 17:54:25,508 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661417106] [2021-11-13 17:54:25,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:54:25,508 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-13 17:54:25,509 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:54:25,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-13 17:54:25,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-11-13 17:54:25,509 INFO L87 Difference]: Start difference. First operand 389 states and 479 transitions. Second operand has 13 states, 13 states have (on average 6.230769230769231) internal successors, (81), 13 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) [2021-11-13 17:54:27,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:54:27,470 INFO L93 Difference]: Finished difference Result 913 states and 1127 transitions. [2021-11-13 17:54:27,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-13 17:54:27,471 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.230769230769231) internal successors, (81), 13 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 [2021-11-13 17:54:27,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:54:27,475 INFO L225 Difference]: With dead ends: 913 [2021-11-13 17:54:27,475 INFO L226 Difference]: Without dead ends: 845 [2021-11-13 17:54:27,476 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=141, Invalid=411, Unknown=0, NotChecked=0, Total=552 [2021-11-13 17:54:27,476 INFO L933 BasicCegarLoop]: 593 mSDtfsCounter, 2074 mSDsluCounter, 3627 mSDsCounter, 0 mSdLazyCounter, 1337 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 865.69ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2074 SdHoareTripleChecker+Valid, 4220 SdHoareTripleChecker+Invalid, 1462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 15.60ms SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 1337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1043.19ms IncrementalHoareTripleChecker+Time [2021-11-13 17:54:27,477 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2074 Valid, 4220 Invalid, 1462 Unknown, 0 Unchecked, 15.60ms Time], IncrementalHoareTripleChecker [125 Valid, 1337 Invalid, 0 Unknown, 0 Unchecked, 1043.19ms Time] [2021-11-13 17:54:27,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 845 states. [2021-11-13 17:54:27,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 845 to 385. [2021-11-13 17:54:27,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 370 states have (on average 1.281081081081081) internal successors, (474), 384 states have internal predecessors, (474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:54:27,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 474 transitions. [2021-11-13 17:54:27,559 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 474 transitions. Word has length 81 [2021-11-13 17:54:27,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:54:27,559 INFO L470 AbstractCegarLoop]: Abstraction has 385 states and 474 transitions. [2021-11-13 17:54:27,559 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.230769230769231) internal successors, (81), 13 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) [2021-11-13 17:54:27,559 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 474 transitions. [2021-11-13 17:54:27,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-13 17:54:27,560 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:54:27,560 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:54:27,560 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-11-13 17:54:27,560 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-13 17:54:27,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:54:27,561 INFO L85 PathProgramCache]: Analyzing trace with hash 852624389, now seen corresponding path program 1 times [2021-11-13 17:54:27,561 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:54:27,561 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888788538] [2021-11-13 17:54:27,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:54:27,561 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:54:27,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:28,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:54:28,013 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:54:28,014 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888788538] [2021-11-13 17:54:28,014 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888788538] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:54:28,014 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:54:28,014 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-13 17:54:28,014 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924924947] [2021-11-13 17:54:28,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:54:28,015 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-13 17:54:28,015 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:54:28,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-13 17:54:28,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-11-13 17:54:28,016 INFO L87 Difference]: Start difference. First operand 385 states and 474 transitions. Second operand has 13 states, 13 states have (on average 6.230769230769231) internal successors, (81), 13 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) [2021-11-13 17:54:29,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:54:29,699 INFO L93 Difference]: Finished difference Result 912 states and 1124 transitions. [2021-11-13 17:54:29,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-13 17:54:29,700 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.230769230769231) internal successors, (81), 13 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 [2021-11-13 17:54:29,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:54:29,704 INFO L225 Difference]: With dead ends: 912 [2021-11-13 17:54:29,704 INFO L226 Difference]: Without dead ends: 844 [2021-11-13 17:54:29,705 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=158, Invalid=492, Unknown=0, NotChecked=0, Total=650 [2021-11-13 17:54:29,706 INFO L933 BasicCegarLoop]: 513 mSDtfsCounter, 2208 mSDsluCounter, 2860 mSDsCounter, 0 mSdLazyCounter, 1117 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 708.48ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2208 SdHoareTripleChecker+Valid, 3373 SdHoareTripleChecker+Invalid, 1243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.11ms SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 1117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 845.11ms IncrementalHoareTripleChecker+Time [2021-11-13 17:54:29,706 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2208 Valid, 3373 Invalid, 1243 Unknown, 0 Unchecked, 11.11ms Time], IncrementalHoareTripleChecker [126 Valid, 1117 Invalid, 0 Unknown, 0 Unchecked, 845.11ms Time] [2021-11-13 17:54:29,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 844 states. [2021-11-13 17:54:29,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 844 to 381. [2021-11-13 17:54:29,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 367 states have (on average 1.2779291553133516) internal successors, (469), 380 states have internal predecessors, (469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:54:29,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 469 transitions. [2021-11-13 17:54:29,801 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 469 transitions. Word has length 81 [2021-11-13 17:54:29,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:54:29,801 INFO L470 AbstractCegarLoop]: Abstraction has 381 states and 469 transitions. [2021-11-13 17:54:29,802 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.230769230769231) internal successors, (81), 13 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) [2021-11-13 17:54:29,802 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 469 transitions. [2021-11-13 17:54:29,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-13 17:54:29,802 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:54:29,803 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:54:29,803 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-11-13 17:54:29,803 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-13 17:54:29,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:54:29,803 INFO L85 PathProgramCache]: Analyzing trace with hash -132869610, now seen corresponding path program 1 times [2021-11-13 17:54:29,803 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:54:29,803 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579305945] [2021-11-13 17:54:29,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:54:29,804 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:54:29,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:30,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:54:30,211 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:54:30,211 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579305945] [2021-11-13 17:54:30,212 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579305945] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:54:30,212 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:54:30,212 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-13 17:54:30,212 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168453889] [2021-11-13 17:54:30,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:54:30,213 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-13 17:54:30,213 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:54:30,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-13 17:54:30,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-11-13 17:54:30,214 INFO L87 Difference]: Start difference. First operand 381 states and 469 transitions. Second operand has 13 states, 13 states have (on average 6.230769230769231) internal successors, (81), 13 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) [2021-11-13 17:54:31,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:54:31,614 INFO L93 Difference]: Finished difference Result 955 states and 1206 transitions. [2021-11-13 17:54:31,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-13 17:54:31,614 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.230769230769231) internal successors, (81), 13 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 [2021-11-13 17:54:31,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:54:31,619 INFO L225 Difference]: With dead ends: 955 [2021-11-13 17:54:31,619 INFO L226 Difference]: Without dead ends: 880 [2021-11-13 17:54:31,620 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=141, Invalid=411, Unknown=0, NotChecked=0, Total=552 [2021-11-13 17:54:31,621 INFO L933 BasicCegarLoop]: 832 mSDtfsCounter, 2274 mSDsluCounter, 4082 mSDsCounter, 0 mSdLazyCounter, 817 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 522.39ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2274 SdHoareTripleChecker+Valid, 4914 SdHoareTripleChecker+Invalid, 900 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.48ms SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 817 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 629.66ms IncrementalHoareTripleChecker+Time [2021-11-13 17:54:31,622 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2274 Valid, 4914 Invalid, 900 Unknown, 0 Unchecked, 12.48ms Time], IncrementalHoareTripleChecker [83 Valid, 817 Invalid, 0 Unknown, 0 Unchecked, 629.66ms Time] [2021-11-13 17:54:31,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 880 states. [2021-11-13 17:54:31,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 880 to 370. [2021-11-13 17:54:31,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 357 states have (on average 1.2745098039215685) internal successors, (455), 369 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:54:31,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 455 transitions. [2021-11-13 17:54:31,720 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 455 transitions. Word has length 81 [2021-11-13 17:54:31,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:54:31,720 INFO L470 AbstractCegarLoop]: Abstraction has 370 states and 455 transitions. [2021-11-13 17:54:31,721 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.230769230769231) internal successors, (81), 13 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) [2021-11-13 17:54:31,721 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 455 transitions. [2021-11-13 17:54:31,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-13 17:54:31,722 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:54:31,723 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:54:31,723 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-11-13 17:54:31,723 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-13 17:54:31,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:54:31,724 INFO L85 PathProgramCache]: Analyzing trace with hash 295761583, now seen corresponding path program 1 times [2021-11-13 17:54:31,724 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:54:31,724 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116218466] [2021-11-13 17:54:31,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:54:31,725 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:54:31,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:32,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:54:32,128 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:54:32,128 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116218466] [2021-11-13 17:54:32,129 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116218466] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:54:32,129 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:54:32,129 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-13 17:54:32,130 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536334096] [2021-11-13 17:54:32,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:54:32,131 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-13 17:54:32,131 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:54:32,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-13 17:54:32,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-11-13 17:54:32,131 INFO L87 Difference]: Start difference. First operand 370 states and 455 transitions. Second operand has 12 states, 12 states have (on average 6.75) internal successors, (81), 12 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) [2021-11-13 17:54:33,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:54:33,535 INFO L93 Difference]: Finished difference Result 943 states and 1246 transitions. [2021-11-13 17:54:33,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-13 17:54:33,536 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.75) internal successors, (81), 12 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 [2021-11-13 17:54:33,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:54:33,541 INFO L225 Difference]: With dead ends: 943 [2021-11-13 17:54:33,542 INFO L226 Difference]: Without dead ends: 816 [2021-11-13 17:54:33,543 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=129, Invalid=377, Unknown=0, NotChecked=0, Total=506 [2021-11-13 17:54:33,544 INFO L933 BasicCegarLoop]: 901 mSDtfsCounter, 2529 mSDsluCounter, 4029 mSDsCounter, 0 mSdLazyCounter, 607 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 392.02ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2529 SdHoareTripleChecker+Valid, 4930 SdHoareTripleChecker+Invalid, 632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.73ms SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 607 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 465.81ms IncrementalHoareTripleChecker+Time [2021-11-13 17:54:33,544 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2529 Valid, 4930 Invalid, 632 Unknown, 0 Unchecked, 11.73ms Time], IncrementalHoareTripleChecker [25 Valid, 607 Invalid, 0 Unknown, 0 Unchecked, 465.81ms Time] [2021-11-13 17:54:33,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 816 states. [2021-11-13 17:54:33,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 816 to 307. [2021-11-13 17:54:33,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 298 states have (on average 1.2751677852348993) internal successors, (380), 306 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:54:33,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 380 transitions. [2021-11-13 17:54:33,628 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 380 transitions. Word has length 81 [2021-11-13 17:54:33,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:54:33,628 INFO L470 AbstractCegarLoop]: Abstraction has 307 states and 380 transitions. [2021-11-13 17:54:33,629 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.75) internal successors, (81), 12 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) [2021-11-13 17:54:33,629 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 380 transitions. [2021-11-13 17:54:33,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-13 17:54:33,630 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:54:33,630 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:54:33,630 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-11-13 17:54:33,631 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)] === [2021-11-13 17:54:33,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:54:33,631 INFO L85 PathProgramCache]: Analyzing trace with hash 487027968, now seen corresponding path program 1 times [2021-11-13 17:54:33,632 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:54:33,632 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099963634] [2021-11-13 17:54:33,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:54:33,632 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:54:33,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:33,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:54:33,963 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:54:33,963 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099963634] [2021-11-13 17:54:33,963 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099963634] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:54:33,963 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:54:33,963 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-13 17:54:33,963 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053800145] [2021-11-13 17:54:33,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:54:33,964 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-13 17:54:33,964 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:54:33,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-13 17:54:33,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-11-13 17:54:33,965 INFO L87 Difference]: Start difference. First operand 307 states and 380 transitions. Second operand has 11 states, 11 states have (on average 7.363636363636363) 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) [2021-11-13 17:54:35,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:54:35,070 INFO L93 Difference]: Finished difference Result 804 states and 1070 transitions. [2021-11-13 17:54:35,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-13 17:54:35,070 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.363636363636363) 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 [2021-11-13 17:54:35,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:54:35,089 INFO L225 Difference]: With dead ends: 804 [2021-11-13 17:54:35,089 INFO L226 Difference]: Without dead ends: 623 [2021-11-13 17:54:35,091 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=147, Invalid=359, Unknown=0, NotChecked=0, Total=506 [2021-11-13 17:54:35,092 INFO L933 BasicCegarLoop]: 351 mSDtfsCounter, 1911 mSDsluCounter, 1243 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 229.14ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1911 SdHoareTripleChecker+Valid, 1594 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.93ms SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 274.29ms IncrementalHoareTripleChecker+Time [2021-11-13 17:54:35,092 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1911 Valid, 1594 Invalid, 323 Unknown, 0 Unchecked, 6.93ms Time], IncrementalHoareTripleChecker [34 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 274.29ms Time] [2021-11-13 17:54:35,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 623 states. [2021-11-13 17:54:35,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 623 to 190. [2021-11-13 17:54:35,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 186 states have (on average 1.2526881720430108) internal successors, (233), 189 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:54:35,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 233 transitions. [2021-11-13 17:54:35,200 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 233 transitions. Word has length 81 [2021-11-13 17:54:35,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:54:35,201 INFO L470 AbstractCegarLoop]: Abstraction has 190 states and 233 transitions. [2021-11-13 17:54:35,201 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.363636363636363) 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) [2021-11-13 17:54:35,201 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 233 transitions. [2021-11-13 17:54:35,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-13 17:54:35,202 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:54:35,202 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:54:35,203 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-11-13 17:54:35,203 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-13 17:54:35,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:54:35,205 INFO L85 PathProgramCache]: Analyzing trace with hash 2090211926, now seen corresponding path program 1 times [2021-11-13 17:54:35,205 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:54:35,205 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959822826] [2021-11-13 17:54:35,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:54:35,206 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:54:35,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:35,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:54:35,355 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:54:35,356 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959822826] [2021-11-13 17:54:35,356 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959822826] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:54:35,356 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:54:35,356 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-13 17:54:35,356 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118447766] [2021-11-13 17:54:35,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:54:35,357 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-13 17:54:35,357 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:54:35,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-13 17:54:35,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-13 17:54:35,358 INFO L87 Difference]: Start difference. First operand 190 states and 233 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) [2021-11-13 17:54:36,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:54:36,050 INFO L93 Difference]: Finished difference Result 375 states and 488 transitions. [2021-11-13 17:54:36,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-13 17:54:36,051 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 [2021-11-13 17:54:36,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:54:36,055 INFO L225 Difference]: With dead ends: 375 [2021-11-13 17:54:36,055 INFO L226 Difference]: Without dead ends: 293 [2021-11-13 17:54:36,056 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=113, Invalid=267, Unknown=0, NotChecked=0, Total=380 [2021-11-13 17:54:36,058 INFO L933 BasicCegarLoop]: 218 mSDtfsCounter, 1047 mSDsluCounter, 518 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 305.69ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1047 SdHoareTripleChecker+Valid, 736 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.50ms SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 372.50ms IncrementalHoareTripleChecker+Time [2021-11-13 17:54:36,059 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1047 Valid, 736 Invalid, 555 Unknown, 0 Unchecked, 5.50ms Time], IncrementalHoareTripleChecker [24 Valid, 531 Invalid, 0 Unknown, 0 Unchecked, 372.50ms Time] [2021-11-13 17:54:36,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2021-11-13 17:54:36,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 190. [2021-11-13 17:54:36,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 186 states have (on average 1.2473118279569892) internal successors, (232), 189 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:54:36,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 232 transitions. [2021-11-13 17:54:36,127 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 232 transitions. Word has length 82 [2021-11-13 17:54:36,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:54:36,128 INFO L470 AbstractCegarLoop]: Abstraction has 190 states and 232 transitions. [2021-11-13 17:54:36,128 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) [2021-11-13 17:54:36,128 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 232 transitions. [2021-11-13 17:54:36,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-13 17:54:36,128 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:54:36,128 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:54:36,129 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-11-13 17:54:36,129 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-13 17:54:36,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:54:36,129 INFO L85 PathProgramCache]: Analyzing trace with hash -1292332739, now seen corresponding path program 1 times [2021-11-13 17:54:36,129 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:54:36,129 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293802356] [2021-11-13 17:54:36,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:54:36,130 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:54:36,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:36,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:54:36,264 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:54:36,265 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293802356] [2021-11-13 17:54:36,265 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293802356] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:54:36,265 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:54:36,265 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-13 17:54:36,265 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945463455] [2021-11-13 17:54:36,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:54:36,266 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-13 17:54:36,266 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:54:36,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-13 17:54:36,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-13 17:54:36,268 INFO L87 Difference]: Start difference. First operand 190 states and 232 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) [2021-11-13 17:54:36,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:54:36,950 INFO L93 Difference]: Finished difference Result 296 states and 371 transitions. [2021-11-13 17:54:36,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-13 17:54:36,951 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 [2021-11-13 17:54:36,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:54:36,952 INFO L225 Difference]: With dead ends: 296 [2021-11-13 17:54:36,952 INFO L226 Difference]: Without dead ends: 289 [2021-11-13 17:54:36,952 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=218, Unknown=0, NotChecked=0, Total=306 [2021-11-13 17:54:36,953 INFO L933 BasicCegarLoop]: 219 mSDtfsCounter, 908 mSDsluCounter, 839 mSDsCounter, 0 mSdLazyCounter, 700 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 330.72ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 908 SdHoareTripleChecker+Valid, 1058 SdHoareTripleChecker+Invalid, 729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.57ms SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 404.44ms IncrementalHoareTripleChecker+Time [2021-11-13 17:54:36,953 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [908 Valid, 1058 Invalid, 729 Unknown, 0 Unchecked, 4.57ms Time], IncrementalHoareTripleChecker [29 Valid, 700 Invalid, 0 Unknown, 0 Unchecked, 404.44ms Time] [2021-11-13 17:54:36,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2021-11-13 17:54:37,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 190. [2021-11-13 17:54:37,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 186 states have (on average 1.2419354838709677) internal successors, (231), 189 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:54:37,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 231 transitions. [2021-11-13 17:54:37,016 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 231 transitions. Word has length 82 [2021-11-13 17:54:37,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:54:37,016 INFO L470 AbstractCegarLoop]: Abstraction has 190 states and 231 transitions. [2021-11-13 17:54:37,016 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) [2021-11-13 17:54:37,016 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 231 transitions. [2021-11-13 17:54:37,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-13 17:54:37,017 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:54:37,017 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:54:37,017 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-11-13 17:54:37,017 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-13 17:54:37,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:54:37,018 INFO L85 PathProgramCache]: Analyzing trace with hash 1541081534, now seen corresponding path program 1 times [2021-11-13 17:54:37,018 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:54:37,018 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259476563] [2021-11-13 17:54:37,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:54:37,019 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:54:37,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:37,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:54:37,255 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:54:37,255 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259476563] [2021-11-13 17:54:37,256 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259476563] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:54:37,256 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:54:37,256 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-13 17:54:37,256 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141279787] [2021-11-13 17:54:37,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:54:37,257 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-13 17:54:37,257 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:54:37,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-13 17:54:37,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-11-13 17:54:37,258 INFO L87 Difference]: Start difference. First operand 190 states and 231 transitions. Second operand has 12 states, 12 states have (on average 6.833333333333333) internal successors, (82), 11 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:54:38,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:54:38,648 INFO L93 Difference]: Finished difference Result 465 states and 612 transitions. [2021-11-13 17:54:38,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-13 17:54:38,649 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.833333333333333) internal successors, (82), 11 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2021-11-13 17:54:38,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:54:38,650 INFO L225 Difference]: With dead ends: 465 [2021-11-13 17:54:38,650 INFO L226 Difference]: Without dead ends: 458 [2021-11-13 17:54:38,650 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=244, Invalid=626, Unknown=0, NotChecked=0, Total=870 [2021-11-13 17:54:38,651 INFO L933 BasicCegarLoop]: 213 mSDtfsCounter, 1694 mSDsluCounter, 933 mSDsCounter, 0 mSdLazyCounter, 860 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 514.38ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1694 SdHoareTripleChecker+Valid, 1146 SdHoareTripleChecker+Invalid, 985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.91ms SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 860 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 631.93ms IncrementalHoareTripleChecker+Time [2021-11-13 17:54:38,651 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1694 Valid, 1146 Invalid, 985 Unknown, 0 Unchecked, 6.91ms Time], IncrementalHoareTripleChecker [125 Valid, 860 Invalid, 0 Unknown, 0 Unchecked, 631.93ms Time] [2021-11-13 17:54:38,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2021-11-13 17:54:38,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 194. [2021-11-13 17:54:38,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 190 states have (on average 1.236842105263158) internal successors, (235), 193 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:54:38,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 235 transitions. [2021-11-13 17:54:38,715 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 235 transitions. Word has length 82 [2021-11-13 17:54:38,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:54:38,716 INFO L470 AbstractCegarLoop]: Abstraction has 194 states and 235 transitions. [2021-11-13 17:54:38,716 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.833333333333333) internal successors, (82), 11 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:54:38,716 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 235 transitions. [2021-11-13 17:54:38,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-13 17:54:38,716 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:54:38,717 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:54:38,717 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-11-13 17:54:38,717 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-13 17:54:38,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:54:38,717 INFO L85 PathProgramCache]: Analyzing trace with hash -1264877342, now seen corresponding path program 1 times [2021-11-13 17:54:38,717 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:54:38,718 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357178243] [2021-11-13 17:54:38,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:54:38,718 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:54:38,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:38,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:54:38,844 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:54:38,844 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357178243] [2021-11-13 17:54:38,844 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357178243] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:54:38,845 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:54:38,845 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-13 17:54:38,845 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669934989] [2021-11-13 17:54:38,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:54:38,846 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-13 17:54:38,846 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:54:38,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-13 17:54:38,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-13 17:54:38,847 INFO L87 Difference]: Start difference. First operand 194 states and 235 transitions. Second operand has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:54:39,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:54:39,522 INFO L93 Difference]: Finished difference Result 296 states and 369 transitions. [2021-11-13 17:54:39,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-13 17:54:39,523 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2021-11-13 17:54:39,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:54:39,523 INFO L225 Difference]: With dead ends: 296 [2021-11-13 17:54:39,524 INFO L226 Difference]: Without dead ends: 289 [2021-11-13 17:54:39,524 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=101, Invalid=241, Unknown=0, NotChecked=0, Total=342 [2021-11-13 17:54:39,524 INFO L933 BasicCegarLoop]: 212 mSDtfsCounter, 905 mSDsluCounter, 646 mSDsCounter, 0 mSdLazyCounter, 609 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 314.93ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 905 SdHoareTripleChecker+Valid, 858 SdHoareTripleChecker+Invalid, 642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.82ms SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 383.26ms IncrementalHoareTripleChecker+Time [2021-11-13 17:54:39,525 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [905 Valid, 858 Invalid, 642 Unknown, 0 Unchecked, 4.82ms Time], IncrementalHoareTripleChecker [33 Valid, 609 Invalid, 0 Unknown, 0 Unchecked, 383.26ms Time] [2021-11-13 17:54:39,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2021-11-13 17:54:39,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 190. [2021-11-13 17:54:39,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 186 states have (on average 1.2365591397849462) internal successors, (230), 189 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:54:39,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 230 transitions. [2021-11-13 17:54:39,587 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 230 transitions. Word has length 83 [2021-11-13 17:54:39,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:54:39,587 INFO L470 AbstractCegarLoop]: Abstraction has 190 states and 230 transitions. [2021-11-13 17:54:39,587 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 8 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:54:39,587 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 230 transitions. [2021-11-13 17:54:39,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-13 17:54:39,588 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:54:39,588 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:54:39,589 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-11-13 17:54:39,589 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-13 17:54:39,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:54:39,589 INFO L85 PathProgramCache]: Analyzing trace with hash 31269841, now seen corresponding path program 1 times [2021-11-13 17:54:39,590 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:54:39,590 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915403215] [2021-11-13 17:54:39,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:54:39,590 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:54:39,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:40,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:54:40,961 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:54:40,961 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915403215] [2021-11-13 17:54:40,961 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915403215] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:54:40,961 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:54:40,961 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-11-13 17:54:40,962 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37873000] [2021-11-13 17:54:40,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:54:40,962 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-11-13 17:54:40,962 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:54:40,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-11-13 17:54:40,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=668, Unknown=0, NotChecked=0, Total=756 [2021-11-13 17:54:40,963 INFO L87 Difference]: Start difference. First operand 190 states and 230 transitions. Second operand has 28 states, 28 states have (on average 3.0) internal successors, (84), 28 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) [2021-11-13 17:54:47,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:54:47,495 INFO L93 Difference]: Finished difference Result 1039 states and 1383 transitions. [2021-11-13 17:54:47,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-11-13 17:54:47,495 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 3.0) internal successors, (84), 28 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 [2021-11-13 17:54:47,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:54:47,497 INFO L225 Difference]: With dead ends: 1039 [2021-11-13 17:54:47,497 INFO L226 Difference]: Without dead ends: 1033 [2021-11-13 17:54:47,499 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 453 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=426, Invalid=2124, Unknown=0, NotChecked=0, Total=2550 [2021-11-13 17:54:47,500 INFO L933 BasicCegarLoop]: 761 mSDtfsCounter, 2646 mSDsluCounter, 10924 mSDsCounter, 0 mSdLazyCounter, 5762 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3339.43ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2646 SdHoareTripleChecker+Valid, 11685 SdHoareTripleChecker+Invalid, 5842 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 46.36ms SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 5762 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3912.96ms IncrementalHoareTripleChecker+Time [2021-11-13 17:54:47,500 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2646 Valid, 11685 Invalid, 5842 Unknown, 0 Unchecked, 46.36ms Time], IncrementalHoareTripleChecker [80 Valid, 5762 Invalid, 0 Unknown, 0 Unchecked, 3912.96ms Time] [2021-11-13 17:54:47,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1033 states. [2021-11-13 17:54:47,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1033 to 211. [2021-11-13 17:54:47,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 207 states have (on average 1.2367149758454106) internal successors, (256), 210 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:54:47,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 256 transitions. [2021-11-13 17:54:47,576 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 256 transitions. Word has length 84 [2021-11-13 17:54:47,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:54:47,576 INFO L470 AbstractCegarLoop]: Abstraction has 211 states and 256 transitions. [2021-11-13 17:54:47,576 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 3.0) internal successors, (84), 28 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) [2021-11-13 17:54:47,576 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 256 transitions. [2021-11-13 17:54:47,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-13 17:54:47,583 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:54:47,583 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:54:47,583 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-11-13 17:54:47,583 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-13 17:54:47,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:54:47,584 INFO L85 PathProgramCache]: Analyzing trace with hash 1365227640, now seen corresponding path program 1 times [2021-11-13 17:54:47,584 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:54:47,585 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257238040] [2021-11-13 17:54:47,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:54:47,585 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:54:47,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:48,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:54:48,780 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:54:48,782 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257238040] [2021-11-13 17:54:48,782 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257238040] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:54:48,783 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:54:48,783 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-11-13 17:54:48,789 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180636420] [2021-11-13 17:54:48,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:54:48,791 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-11-13 17:54:48,791 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:54:48,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-11-13 17:54:48,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=615, Unknown=0, NotChecked=0, Total=702 [2021-11-13 17:54:48,792 INFO L87 Difference]: Start difference. First operand 211 states and 256 transitions. Second operand has 27 states, 27 states have (on average 3.111111111111111) internal successors, (84), 27 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) [2021-11-13 17:54:54,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:54:54,093 INFO L93 Difference]: Finished difference Result 776 states and 995 transitions. [2021-11-13 17:54:54,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-11-13 17:54:54,094 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 3.111111111111111) internal successors, (84), 27 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 [2021-11-13 17:54:54,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:54:54,096 INFO L225 Difference]: With dead ends: 776 [2021-11-13 17:54:54,096 INFO L226 Difference]: Without dead ends: 768 [2021-11-13 17:54:54,097 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 488 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=404, Invalid=2046, Unknown=0, NotChecked=0, Total=2450 [2021-11-13 17:54:54,098 INFO L933 BasicCegarLoop]: 686 mSDtfsCounter, 1576 mSDsluCounter, 7981 mSDsCounter, 0 mSdLazyCounter, 4164 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2735.94ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1576 SdHoareTripleChecker+Valid, 8667 SdHoareTripleChecker+Invalid, 4227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 35.28ms SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 4164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3203.47ms IncrementalHoareTripleChecker+Time [2021-11-13 17:54:54,098 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1576 Valid, 8667 Invalid, 4227 Unknown, 0 Unchecked, 35.28ms Time], IncrementalHoareTripleChecker [63 Valid, 4164 Invalid, 0 Unknown, 0 Unchecked, 3203.47ms Time] [2021-11-13 17:54:54,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 768 states. [2021-11-13 17:54:54,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 768 to 215. [2021-11-13 17:54:54,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 211 states have (on average 1.2369668246445498) internal successors, (261), 214 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:54:54,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 261 transitions. [2021-11-13 17:54:54,182 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 261 transitions. Word has length 84 [2021-11-13 17:54:54,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:54:54,182 INFO L470 AbstractCegarLoop]: Abstraction has 215 states and 261 transitions. [2021-11-13 17:54:54,183 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 3.111111111111111) internal successors, (84), 27 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) [2021-11-13 17:54:54,183 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 261 transitions. [2021-11-13 17:54:54,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-13 17:54:54,184 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:54:54,184 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:54:54,184 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-11-13 17:54:54,184 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-13 17:54:54,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:54:54,185 INFO L85 PathProgramCache]: Analyzing trace with hash 1267060153, now seen corresponding path program 1 times [2021-11-13 17:54:54,185 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:54:54,186 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017016953] [2021-11-13 17:54:54,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:54:54,186 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:54:54,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:54:55,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:54:55,232 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:54:55,233 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017016953] [2021-11-13 17:54:55,233 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017016953] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:54:55,233 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:54:55,233 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-11-13 17:54:55,233 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691778947] [2021-11-13 17:54:55,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:54:55,233 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-11-13 17:54:55,234 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:54:55,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-11-13 17:54:55,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=571, Unknown=0, NotChecked=0, Total=650 [2021-11-13 17:54:55,235 INFO L87 Difference]: Start difference. First operand 215 states and 261 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) [2021-11-13 17:55:00,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:55:00,315 INFO L93 Difference]: Finished difference Result 784 states and 1004 transitions. [2021-11-13 17:55:00,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-11-13 17:55:00,315 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 [2021-11-13 17:55:00,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:55:00,317 INFO L225 Difference]: With dead ends: 784 [2021-11-13 17:55:00,317 INFO L226 Difference]: Without dead ends: 776 [2021-11-13 17:55:00,319 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 393 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=383, Invalid=1873, Unknown=0, NotChecked=0, Total=2256 [2021-11-13 17:55:00,319 INFO L933 BasicCegarLoop]: 686 mSDtfsCounter, 2006 mSDsluCounter, 8607 mSDsCounter, 0 mSdLazyCounter, 4622 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2676.18ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2006 SdHoareTripleChecker+Valid, 9293 SdHoareTripleChecker+Invalid, 4700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 35.37ms SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 4622 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3139.51ms IncrementalHoareTripleChecker+Time [2021-11-13 17:55:00,320 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2006 Valid, 9293 Invalid, 4700 Unknown, 0 Unchecked, 35.37ms Time], IncrementalHoareTripleChecker [78 Valid, 4622 Invalid, 0 Unknown, 0 Unchecked, 3139.51ms Time] [2021-11-13 17:55:00,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 776 states. [2021-11-13 17:55:00,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 776 to 224. [2021-11-13 17:55:00,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 220 states have (on average 1.2363636363636363) internal successors, (272), 223 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:55:00,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 272 transitions. [2021-11-13 17:55:00,403 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 272 transitions. Word has length 84 [2021-11-13 17:55:00,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:55:00,404 INFO L470 AbstractCegarLoop]: Abstraction has 224 states and 272 transitions. [2021-11-13 17:55:00,404 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) [2021-11-13 17:55:00,404 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 272 transitions. [2021-11-13 17:55:00,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-13 17:55:00,404 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:55:00,405 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:55:00,405 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-11-13 17:55:00,405 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-13 17:55:00,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:55:00,405 INFO L85 PathProgramCache]: Analyzing trace with hash 601058947, now seen corresponding path program 1 times [2021-11-13 17:55:00,405 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:55:00,406 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900118563] [2021-11-13 17:55:00,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:55:00,406 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:55:00,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:00,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:55:00,829 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:55:00,829 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900118563] [2021-11-13 17:55:00,829 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900118563] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:55:00,829 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:55:00,829 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-13 17:55:00,830 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274745680] [2021-11-13 17:55:00,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:55:00,830 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-13 17:55:00,830 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:55:00,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-13 17:55:00,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-11-13 17:55:00,831 INFO L87 Difference]: Start difference. First operand 224 states and 272 transitions. Second operand has 12 states, 12 states have (on average 7.083333333333333) internal successors, (85), 12 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) [2021-11-13 17:55:02,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:55:02,185 INFO L93 Difference]: Finished difference Result 479 states and 628 transitions. [2021-11-13 17:55:02,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-13 17:55:02,185 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.083333333333333) internal successors, (85), 12 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 [2021-11-13 17:55:02,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:55:02,187 INFO L225 Difference]: With dead ends: 479 [2021-11-13 17:55:02,187 INFO L226 Difference]: Without dead ends: 464 [2021-11-13 17:55:02,187 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=129, Invalid=377, Unknown=0, NotChecked=0, Total=506 [2021-11-13 17:55:02,190 INFO L933 BasicCegarLoop]: 498 mSDtfsCounter, 1080 mSDsluCounter, 2315 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 346.74ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1080 SdHoareTripleChecker+Valid, 2813 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.25ms SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 413.20ms IncrementalHoareTripleChecker+Time [2021-11-13 17:55:02,190 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1080 Valid, 2813 Invalid, 497 Unknown, 0 Unchecked, 9.25ms Time], IncrementalHoareTripleChecker [20 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 413.20ms Time] [2021-11-13 17:55:02,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2021-11-13 17:55:02,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 208. [2021-11-13 17:55:02,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 205 states have (on average 1.2390243902439024) internal successors, (254), 207 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:55:02,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 254 transitions. [2021-11-13 17:55:02,309 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 254 transitions. Word has length 85 [2021-11-13 17:55:02,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:55:02,309 INFO L470 AbstractCegarLoop]: Abstraction has 208 states and 254 transitions. [2021-11-13 17:55:02,310 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.083333333333333) internal successors, (85), 12 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) [2021-11-13 17:55:02,310 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 254 transitions. [2021-11-13 17:55:02,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-13 17:55:02,310 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:55:02,310 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:55:02,310 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-11-13 17:55:02,311 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-13 17:55:02,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:55:02,315 INFO L85 PathProgramCache]: Analyzing trace with hash -909500381, now seen corresponding path program 1 times [2021-11-13 17:55:02,316 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:55:02,316 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479437768] [2021-11-13 17:55:02,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:55:02,316 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:55:02,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:04,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:55:04,005 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:55:04,005 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479437768] [2021-11-13 17:55:04,005 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479437768] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:55:04,005 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:55:04,005 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-11-13 17:55:04,005 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091206872] [2021-11-13 17:55:04,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:55:04,006 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-11-13 17:55:04,006 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:55:04,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-11-13 17:55:04,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=580, Unknown=0, NotChecked=0, Total=650 [2021-11-13 17:55:04,006 INFO L87 Difference]: Start difference. First operand 208 states and 254 transitions. Second operand has 26 states, 26 states have (on average 3.269230769230769) internal successors, (85), 26 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:55:11,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:55:11,261 INFO L93 Difference]: Finished difference Result 1126 states and 1529 transitions. [2021-11-13 17:55:11,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-11-13 17:55:11,261 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.269230769230769) internal successors, (85), 26 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2021-11-13 17:55:11,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:55:11,263 INFO L225 Difference]: With dead ends: 1126 [2021-11-13 17:55:11,263 INFO L226 Difference]: Without dead ends: 1120 [2021-11-13 17:55:11,265 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 474 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=421, Invalid=2029, Unknown=0, NotChecked=0, Total=2450 [2021-11-13 17:55:11,265 INFO L933 BasicCegarLoop]: 911 mSDtfsCounter, 2830 mSDsluCounter, 10729 mSDsCounter, 0 mSdLazyCounter, 4988 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3372.19ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2830 SdHoareTripleChecker+Valid, 11640 SdHoareTripleChecker+Invalid, 5067 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 43.55ms SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 4988 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3934.15ms IncrementalHoareTripleChecker+Time [2021-11-13 17:55:11,265 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2830 Valid, 11640 Invalid, 5067 Unknown, 0 Unchecked, 43.55ms Time], IncrementalHoareTripleChecker [79 Valid, 4988 Invalid, 0 Unknown, 0 Unchecked, 3934.15ms Time] [2021-11-13 17:55:11,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1120 states. [2021-11-13 17:55:11,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1120 to 209. [2021-11-13 17:55:11,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 206 states have (on average 1.2378640776699028) internal successors, (255), 208 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:55:11,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 255 transitions. [2021-11-13 17:55:11,356 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 255 transitions. Word has length 85 [2021-11-13 17:55:11,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:55:11,357 INFO L470 AbstractCegarLoop]: Abstraction has 209 states and 255 transitions. [2021-11-13 17:55:11,357 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.269230769230769) internal successors, (85), 26 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:55:11,357 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 255 transitions. [2021-11-13 17:55:11,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-13 17:55:11,357 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:55:11,358 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:55:11,358 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-11-13 17:55:11,358 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)] === [2021-11-13 17:55:11,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:55:11,358 INFO L85 PathProgramCache]: Analyzing trace with hash 1852833578, now seen corresponding path program 1 times [2021-11-13 17:55:11,359 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:55:11,359 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138056055] [2021-11-13 17:55:11,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:55:11,359 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:55:11,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:11,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:55:11,748 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:55:11,748 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138056055] [2021-11-13 17:55:11,748 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138056055] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:55:11,748 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:55:11,748 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-13 17:55:11,749 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021417679] [2021-11-13 17:55:11,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:55:11,749 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-13 17:55:11,749 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:55:11,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-13 17:55:11,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-11-13 17:55:11,750 INFO L87 Difference]: Start difference. First operand 209 states and 255 transitions. Second operand has 12 states, 12 states have (on average 7.083333333333333) internal successors, (85), 12 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) [2021-11-13 17:55:13,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:55:13,035 INFO L93 Difference]: Finished difference Result 482 states and 632 transitions. [2021-11-13 17:55:13,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-13 17:55:13,035 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.083333333333333) internal successors, (85), 12 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 [2021-11-13 17:55:13,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:55:13,037 INFO L225 Difference]: With dead ends: 482 [2021-11-13 17:55:13,037 INFO L226 Difference]: Without dead ends: 456 [2021-11-13 17:55:13,037 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=129, Invalid=377, Unknown=0, NotChecked=0, Total=506 [2021-11-13 17:55:13,038 INFO L933 BasicCegarLoop]: 504 mSDtfsCounter, 1112 mSDsluCounter, 2198 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 304.08ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1112 SdHoareTripleChecker+Valid, 2702 SdHoareTripleChecker+Invalid, 456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.50ms SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 358.91ms IncrementalHoareTripleChecker+Time [2021-11-13 17:55:13,038 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1112 Valid, 2702 Invalid, 456 Unknown, 0 Unchecked, 7.50ms Time], IncrementalHoareTripleChecker [16 Valid, 440 Invalid, 0 Unknown, 0 Unchecked, 358.91ms Time] [2021-11-13 17:55:13,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2021-11-13 17:55:13,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 182. [2021-11-13 17:55:13,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 180 states have (on average 1.2444444444444445) internal successors, (224), 181 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:55:13,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 224 transitions. [2021-11-13 17:55:13,122 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 224 transitions. Word has length 85 [2021-11-13 17:55:13,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:55:13,123 INFO L470 AbstractCegarLoop]: Abstraction has 182 states and 224 transitions. [2021-11-13 17:55:13,123 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.083333333333333) internal successors, (85), 12 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) [2021-11-13 17:55:13,123 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 224 transitions. [2021-11-13 17:55:13,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-13 17:55:13,123 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:55:13,124 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:55:13,124 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-11-13 17:55:13,124 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-13 17:55:13,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:55:13,125 INFO L85 PathProgramCache]: Analyzing trace with hash -917215218, now seen corresponding path program 1 times [2021-11-13 17:55:13,125 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:55:13,125 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060763208] [2021-11-13 17:55:13,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:55:13,125 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:55:13,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:13,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:55:13,558 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:55:13,558 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060763208] [2021-11-13 17:55:13,558 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060763208] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:55:13,559 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:55:13,559 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-13 17:55:13,559 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442985436] [2021-11-13 17:55:13,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:55:13,559 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-13 17:55:13,559 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:55:13,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-13 17:55:13,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-11-13 17:55:13,560 INFO L87 Difference]: Start difference. First operand 182 states and 224 transitions. Second operand has 13 states, 13 states have (on average 6.538461538461538) internal successors, (85), 13 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:55:15,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:55:15,119 INFO L93 Difference]: Finished difference Result 675 states and 939 transitions. [2021-11-13 17:55:15,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-13 17:55:15,120 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.538461538461538) internal successors, (85), 13 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2021-11-13 17:55:15,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:55:15,121 INFO L225 Difference]: With dead ends: 675 [2021-11-13 17:55:15,121 INFO L226 Difference]: Without dead ends: 669 [2021-11-13 17:55:15,122 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2021-11-13 17:55:15,123 INFO L933 BasicCegarLoop]: 431 mSDtfsCounter, 1433 mSDsluCounter, 3133 mSDsCounter, 0 mSdLazyCounter, 670 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 403.27ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1433 SdHoareTripleChecker+Valid, 3564 SdHoareTripleChecker+Invalid, 695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.35ms SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 670 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 480.07ms IncrementalHoareTripleChecker+Time [2021-11-13 17:55:15,123 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1433 Valid, 3564 Invalid, 695 Unknown, 0 Unchecked, 9.35ms Time], IncrementalHoareTripleChecker [25 Valid, 670 Invalid, 0 Unknown, 0 Unchecked, 480.07ms Time] [2021-11-13 17:55:15,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 669 states. [2021-11-13 17:55:15,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 669 to 154. [2021-11-13 17:55:15,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 153 states have (on average 1.2483660130718954) internal successors, (191), 153 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:55:15,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 191 transitions. [2021-11-13 17:55:15,204 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 191 transitions. Word has length 85 [2021-11-13 17:55:15,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:55:15,205 INFO L470 AbstractCegarLoop]: Abstraction has 154 states and 191 transitions. [2021-11-13 17:55:15,205 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.538461538461538) internal successors, (85), 13 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:55:15,205 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 191 transitions. [2021-11-13 17:55:15,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-11-13 17:55:15,205 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:55:15,206 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:55:15,206 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-11-13 17:55:15,206 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-13 17:55:15,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:55:15,206 INFO L85 PathProgramCache]: Analyzing trace with hash 1569723451, now seen corresponding path program 1 times [2021-11-13 17:55:15,207 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:55:15,207 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312286336] [2021-11-13 17:55:15,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:55:15,207 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:55:15,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:15,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:55:15,302 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:55:15,303 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312286336] [2021-11-13 17:55:15,303 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312286336] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:55:15,303 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:55:15,303 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-13 17:55:15,303 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380592305] [2021-11-13 17:55:15,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:55:15,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 17:55:15,304 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:55:15,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 17:55:15,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-13 17:55:15,305 INFO L87 Difference]: Start difference. First operand 154 states and 191 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 7 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:55:16,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:55:16,407 INFO L93 Difference]: Finished difference Result 794 states and 1141 transitions. [2021-11-13 17:55:16,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-13 17:55:16,408 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 7 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2021-11-13 17:55:16,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:55:16,410 INFO L225 Difference]: With dead ends: 794 [2021-11-13 17:55:16,411 INFO L226 Difference]: Without dead ends: 730 [2021-11-13 17:55:16,411 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-11-13 17:55:16,412 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 1784 mSDsluCounter, 956 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 88.27ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1784 SdHoareTripleChecker+Valid, 1142 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.42ms SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 106.64ms IncrementalHoareTripleChecker+Time [2021-11-13 17:55:16,412 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1784 Valid, 1142 Invalid, 100 Unknown, 0 Unchecked, 6.42ms Time], IncrementalHoareTripleChecker [15 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 106.64ms Time] [2021-11-13 17:55:16,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 730 states. [2021-11-13 17:55:16,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 730 to 216. [2021-11-13 17:55:16,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 215 states have (on average 1.3162790697674418) internal successors, (283), 215 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:55:16,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 283 transitions. [2021-11-13 17:55:16,645 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 283 transitions. Word has length 111 [2021-11-13 17:55:16,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:55:16,646 INFO L470 AbstractCegarLoop]: Abstraction has 216 states and 283 transitions. [2021-11-13 17:55:16,646 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 7 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:55:16,646 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 283 transitions. [2021-11-13 17:55:16,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-13 17:55:16,647 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:55:16,648 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:55:16,648 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-11-13 17:55:16,648 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-13 17:55:16,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:55:16,650 INFO L85 PathProgramCache]: Analyzing trace with hash 1004312690, now seen corresponding path program 1 times [2021-11-13 17:55:16,650 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:55:16,650 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304195057] [2021-11-13 17:55:16,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:55:16,651 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:55:16,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:16,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:55:16,761 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:55:16,761 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304195057] [2021-11-13 17:55:16,762 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304195057] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:55:16,762 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:55:16,762 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-13 17:55:16,762 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484792819] [2021-11-13 17:55:16,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:55:16,763 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 17:55:16,763 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:55:16,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 17:55:16,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-13 17:55:16,764 INFO L87 Difference]: Start difference. First operand 216 states and 283 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:55:17,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:55:17,803 INFO L93 Difference]: Finished difference Result 910 states and 1311 transitions. [2021-11-13 17:55:17,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 17:55:17,804 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 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 113 [2021-11-13 17:55:17,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:55:17,805 INFO L225 Difference]: With dead ends: 910 [2021-11-13 17:55:17,806 INFO L226 Difference]: Without dead ends: 784 [2021-11-13 17:55:17,806 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-11-13 17:55:17,807 INFO L933 BasicCegarLoop]: 270 mSDtfsCounter, 1196 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 70.07ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1196 SdHoareTripleChecker+Valid, 884 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.85ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 88.29ms IncrementalHoareTripleChecker+Time [2021-11-13 17:55:17,807 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1196 Valid, 884 Invalid, 83 Unknown, 0 Unchecked, 4.85ms Time], IncrementalHoareTripleChecker [4 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 88.29ms Time] [2021-11-13 17:55:17,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 784 states. [2021-11-13 17:55:18,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 784 to 340. [2021-11-13 17:55:18,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 339 states have (on average 1.3805309734513274) internal successors, (468), 339 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:55:18,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 468 transitions. [2021-11-13 17:55:18,081 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 468 transitions. Word has length 113 [2021-11-13 17:55:18,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:55:18,081 INFO L470 AbstractCegarLoop]: Abstraction has 340 states and 468 transitions. [2021-11-13 17:55:18,081 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:55:18,081 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 468 transitions. [2021-11-13 17:55:18,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-13 17:55:18,082 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:55:18,082 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:55:18,082 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-11-13 17:55:18,082 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-13 17:55:18,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:55:18,083 INFO L85 PathProgramCache]: Analyzing trace with hash -1515443221, now seen corresponding path program 1 times [2021-11-13 17:55:18,083 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:55:18,083 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713890680] [2021-11-13 17:55:18,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:55:18,084 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:55:18,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:18,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:55:18,144 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:55:18,144 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713890680] [2021-11-13 17:55:18,144 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713890680] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:55:18,145 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:55:18,145 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 17:55:18,145 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373485033] [2021-11-13 17:55:18,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:55:18,146 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 17:55:18,146 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:55:18,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 17:55:18,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 17:55:18,147 INFO L87 Difference]: Start difference. First operand 340 states and 468 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:55:18,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:55:18,760 INFO L93 Difference]: Finished difference Result 814 states and 1166 transitions. [2021-11-13 17:55:18,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 17:55:18,761 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 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 113 [2021-11-13 17:55:18,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:55:18,762 INFO L225 Difference]: With dead ends: 814 [2021-11-13 17:55:18,762 INFO L226 Difference]: Without dead ends: 564 [2021-11-13 17:55:18,763 INFO L932 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 [2021-11-13 17:55:18,763 INFO L933 BasicCegarLoop]: 183 mSDtfsCounter, 110 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.29ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.24ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.33ms IncrementalHoareTripleChecker+Time [2021-11-13 17:55:18,764 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 305 Invalid, 21 Unknown, 0 Unchecked, 1.24ms Time], IncrementalHoareTripleChecker [7 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 28.33ms Time] [2021-11-13 17:55:18,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2021-11-13 17:55:19,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 558. [2021-11-13 17:55:19,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 558 states, 557 states have (on average 1.398563734290844) internal successors, (779), 557 states have internal predecessors, (779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:55:19,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 779 transitions. [2021-11-13 17:55:19,309 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 779 transitions. Word has length 113 [2021-11-13 17:55:19,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:55:19,309 INFO L470 AbstractCegarLoop]: Abstraction has 558 states and 779 transitions. [2021-11-13 17:55:19,310 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:55:19,310 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 779 transitions. [2021-11-13 17:55:19,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-13 17:55:19,311 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:55:19,312 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:55:19,312 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-11-13 17:55:19,312 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-13 17:55:19,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:55:19,313 INFO L85 PathProgramCache]: Analyzing trace with hash -1448949709, now seen corresponding path program 1 times [2021-11-13 17:55:19,313 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:55:19,313 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218187083] [2021-11-13 17:55:19,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:55:19,314 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:55:19,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:19,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:55:19,509 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:55:19,509 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218187083] [2021-11-13 17:55:19,510 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218187083] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:55:19,510 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:55:19,510 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-13 17:55:19,510 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762654040] [2021-11-13 17:55:19,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:55:19,511 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 17:55:19,511 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:55:19,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 17:55:19,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-13 17:55:19,512 INFO L87 Difference]: Start difference. First operand 558 states and 779 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:55:20,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:55:20,169 INFO L93 Difference]: Finished difference Result 1028 states and 1463 transitions. [2021-11-13 17:55:20,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 17:55:20,170 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 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 113 [2021-11-13 17:55:20,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:55:20,171 INFO L225 Difference]: With dead ends: 1028 [2021-11-13 17:55:20,171 INFO L226 Difference]: Without dead ends: 560 [2021-11-13 17:55:20,172 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2021-11-13 17:55:20,173 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 676 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 47.23ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 676 SdHoareTripleChecker+Valid, 554 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.95ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 56.99ms IncrementalHoareTripleChecker+Time [2021-11-13 17:55:20,173 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [676 Valid, 554 Invalid, 71 Unknown, 0 Unchecked, 1.95ms Time], IncrementalHoareTripleChecker [8 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 56.99ms Time] [2021-11-13 17:55:20,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2021-11-13 17:55:20,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 558. [2021-11-13 17:55:20,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 558 states, 557 states have (on average 1.3949730700179532) internal successors, (777), 557 states have internal predecessors, (777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:55:20,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 777 transitions. [2021-11-13 17:55:20,685 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 777 transitions. Word has length 113 [2021-11-13 17:55:20,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:55:20,685 INFO L470 AbstractCegarLoop]: Abstraction has 558 states and 777 transitions. [2021-11-13 17:55:20,685 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:55:20,685 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 777 transitions. [2021-11-13 17:55:20,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-13 17:55:20,686 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:55:20,686 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:55:20,686 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-11-13 17:55:20,687 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-13 17:55:20,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:55:20,687 INFO L85 PathProgramCache]: Analyzing trace with hash -1415505294, now seen corresponding path program 1 times [2021-11-13 17:55:20,687 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:55:20,687 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392750157] [2021-11-13 17:55:20,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:55:20,687 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:55:20,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:20,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:55:20,783 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:55:20,783 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392750157] [2021-11-13 17:55:20,783 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392750157] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:55:20,783 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:55:20,784 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-13 17:55:20,784 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513230696] [2021-11-13 17:55:20,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:55:20,785 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 17:55:20,785 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:55:20,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 17:55:20,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-13 17:55:20,786 INFO L87 Difference]: Start difference. First operand 558 states and 777 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:55:22,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:55:22,619 INFO L93 Difference]: Finished difference Result 1852 states and 2657 transitions. [2021-11-13 17:55:22,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 17:55:22,620 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 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 113 [2021-11-13 17:55:22,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:55:22,623 INFO L225 Difference]: With dead ends: 1852 [2021-11-13 17:55:22,623 INFO L226 Difference]: Without dead ends: 1617 [2021-11-13 17:55:22,624 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-11-13 17:55:22,625 INFO L933 BasicCegarLoop]: 276 mSDtfsCounter, 1054 mSDsluCounter, 699 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 70.63ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1054 SdHoareTripleChecker+Valid, 975 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.75ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 90.28ms IncrementalHoareTripleChecker+Time [2021-11-13 17:55:22,625 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1054 Valid, 975 Invalid, 103 Unknown, 0 Unchecked, 4.75ms Time], IncrementalHoareTripleChecker [4 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 90.28ms Time] [2021-11-13 17:55:22,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1617 states. [2021-11-13 17:55:23,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1617 to 908. [2021-11-13 17:55:23,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 908 states, 907 states have (on average 1.4167585446527011) internal successors, (1285), 907 states have internal predecessors, (1285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:55:23,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 908 states to 908 states and 1285 transitions. [2021-11-13 17:55:23,585 INFO L78 Accepts]: Start accepts. Automaton has 908 states and 1285 transitions. Word has length 113 [2021-11-13 17:55:23,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:55:23,585 INFO L470 AbstractCegarLoop]: Abstraction has 908 states and 1285 transitions. [2021-11-13 17:55:23,585 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:55:23,586 INFO L276 IsEmpty]: Start isEmpty. Operand 908 states and 1285 transitions. [2021-11-13 17:55:23,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-13 17:55:23,587 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:55:23,588 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:55:23,588 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2021-11-13 17:55:23,588 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-13 17:55:23,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:55:23,589 INFO L85 PathProgramCache]: Analyzing trace with hash -1051419534, now seen corresponding path program 1 times [2021-11-13 17:55:23,589 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:55:23,590 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968785561] [2021-11-13 17:55:23,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:55:23,590 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:55:23,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:23,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:55:23,703 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:55:23,703 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968785561] [2021-11-13 17:55:23,703 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968785561] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:55:23,703 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:55:23,704 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-13 17:55:23,704 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103536728] [2021-11-13 17:55:23,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:55:23,705 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 17:55:23,705 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:55:23,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 17:55:23,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-13 17:55:23,706 INFO L87 Difference]: Start difference. First operand 908 states and 1285 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:55:26,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:55:26,116 INFO L93 Difference]: Finished difference Result 2085 states and 2996 transitions. [2021-11-13 17:55:26,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 17:55:26,117 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 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 113 [2021-11-13 17:55:26,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:55:26,120 INFO L225 Difference]: With dead ends: 2085 [2021-11-13 17:55:26,120 INFO L226 Difference]: Without dead ends: 1850 [2021-11-13 17:55:26,121 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-11-13 17:55:26,121 INFO L933 BasicCegarLoop]: 276 mSDtfsCounter, 1070 mSDsluCounter, 720 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 73.49ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1070 SdHoareTripleChecker+Valid, 996 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.60ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 89.95ms IncrementalHoareTripleChecker+Time [2021-11-13 17:55:26,122 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1070 Valid, 996 Invalid, 87 Unknown, 0 Unchecked, 5.60ms Time], IncrementalHoareTripleChecker [4 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 89.95ms Time] [2021-11-13 17:55:26,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1850 states. [2021-11-13 17:55:27,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1850 to 1141. [2021-11-13 17:55:27,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1141 states, 1140 states have (on average 1.424561403508772) internal successors, (1624), 1140 states have internal predecessors, (1624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:55:27,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1141 states to 1141 states and 1624 transitions. [2021-11-13 17:55:27,319 INFO L78 Accepts]: Start accepts. Automaton has 1141 states and 1624 transitions. Word has length 113 [2021-11-13 17:55:27,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:55:27,320 INFO L470 AbstractCegarLoop]: Abstraction has 1141 states and 1624 transitions. [2021-11-13 17:55:27,320 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:55:27,320 INFO L276 IsEmpty]: Start isEmpty. Operand 1141 states and 1624 transitions. [2021-11-13 17:55:27,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-13 17:55:27,321 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:55:27,321 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:55:27,321 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-11-13 17:55:27,321 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-13 17:55:27,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:55:27,322 INFO L85 PathProgramCache]: Analyzing trace with hash -310960526, now seen corresponding path program 1 times [2021-11-13 17:55:27,322 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:55:27,322 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640654170] [2021-11-13 17:55:27,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:55:27,322 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:55:27,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:27,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:55:27,459 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:55:27,459 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640654170] [2021-11-13 17:55:27,459 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640654170] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:55:27,459 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:55:27,459 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-13 17:55:27,460 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536957608] [2021-11-13 17:55:27,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:55:27,461 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 17:55:27,461 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:55:27,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 17:55:27,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-13 17:55:27,462 INFO L87 Difference]: Start difference. First operand 1141 states and 1624 transitions. Second operand has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:55:29,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:55:29,805 INFO L93 Difference]: Finished difference Result 2318 states and 3335 transitions. [2021-11-13 17:55:29,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 17:55:29,805 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 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 113 [2021-11-13 17:55:29,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:55:29,808 INFO L225 Difference]: With dead ends: 2318 [2021-11-13 17:55:29,809 INFO L226 Difference]: Without dead ends: 2083 [2021-11-13 17:55:29,809 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-11-13 17:55:29,810 INFO L933 BasicCegarLoop]: 272 mSDtfsCounter, 1172 mSDsluCounter, 747 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 74.55ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1172 SdHoareTripleChecker+Valid, 1019 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.58ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 92.17ms IncrementalHoareTripleChecker+Time [2021-11-13 17:55:29,810 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1172 Valid, 1019 Invalid, 107 Unknown, 0 Unchecked, 4.58ms Time], IncrementalHoareTripleChecker [4 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 92.17ms Time] [2021-11-13 17:55:29,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2083 states. [2021-11-13 17:55:31,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2083 to 1374. [2021-11-13 17:55:31,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1374 states, 1373 states have (on average 1.4297159504734158) internal successors, (1963), 1373 states have internal predecessors, (1963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:55:31,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1374 states to 1374 states and 1963 transitions. [2021-11-13 17:55:31,295 INFO L78 Accepts]: Start accepts. Automaton has 1374 states and 1963 transitions. Word has length 113 [2021-11-13 17:55:31,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:55:31,296 INFO L470 AbstractCegarLoop]: Abstraction has 1374 states and 1963 transitions. [2021-11-13 17:55:31,296 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.142857142857142) internal successors, (113), 7 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:55:31,296 INFO L276 IsEmpty]: Start isEmpty. Operand 1374 states and 1963 transitions. [2021-11-13 17:55:31,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-13 17:55:31,297 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:55:31,297 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:55:31,297 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2021-11-13 17:55:31,297 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-13 17:55:31,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:55:31,298 INFO L85 PathProgramCache]: Analyzing trace with hash 1879024262, now seen corresponding path program 1 times [2021-11-13 17:55:31,298 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:55:31,298 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817358755] [2021-11-13 17:55:31,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:55:31,298 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:55:31,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:31,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:55:31,360 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:55:31,360 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817358755] [2021-11-13 17:55:31,360 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817358755] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:55:31,360 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:55:31,361 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 17:55:31,361 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030655770] [2021-11-13 17:55:31,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:55:31,362 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 17:55:31,362 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:55:31,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 17:55:31,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 17:55:31,363 INFO L87 Difference]: Start difference. First operand 1374 states and 1963 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) [2021-11-13 17:55:34,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:55:34,256 INFO L93 Difference]: Finished difference Result 3854 states and 5543 transitions. [2021-11-13 17:55:34,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 17:55:34,257 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 [2021-11-13 17:55:34,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:55:34,262 INFO L225 Difference]: With dead ends: 3854 [2021-11-13 17:55:34,263 INFO L226 Difference]: Without dead ends: 2570 [2021-11-13 17:55:34,265 INFO L932 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 [2021-11-13 17:55:34,266 INFO L933 BasicCegarLoop]: 253 mSDtfsCounter, 89 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.14ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.28ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.23ms IncrementalHoareTripleChecker+Time [2021-11-13 17:55:34,266 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [89 Valid, 405 Invalid, 11 Unknown, 0 Unchecked, 1.28ms Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 18.23ms Time] [2021-11-13 17:55:34,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2570 states. [2021-11-13 17:55:36,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2570 to 2480. [2021-11-13 17:55:36,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2480 states, 2479 states have (on average 1.4292053247277128) internal successors, (3543), 2479 states have internal predecessors, (3543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:55:36,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2480 states to 2480 states and 3543 transitions. [2021-11-13 17:55:36,974 INFO L78 Accepts]: Start accepts. Automaton has 2480 states and 3543 transitions. Word has length 114 [2021-11-13 17:55:36,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:55:36,974 INFO L470 AbstractCegarLoop]: Abstraction has 2480 states and 3543 transitions. [2021-11-13 17:55:36,974 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) [2021-11-13 17:55:36,975 INFO L276 IsEmpty]: Start isEmpty. Operand 2480 states and 3543 transitions. [2021-11-13 17:55:36,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-13 17:55:36,976 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:55:36,976 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:55:36,977 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2021-11-13 17:55:36,977 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-13 17:55:36,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:55:36,978 INFO L85 PathProgramCache]: Analyzing trace with hash -658426381, now seen corresponding path program 1 times [2021-11-13 17:55:36,978 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:55:36,978 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768227575] [2021-11-13 17:55:36,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:55:36,978 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:55:37,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:37,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:55:37,041 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:55:37,041 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768227575] [2021-11-13 17:55:37,042 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768227575] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:55:37,042 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:55:37,042 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 17:55:37,042 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565838994] [2021-11-13 17:55:37,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:55:37,043 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 17:55:37,043 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:55:37,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 17:55:37,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 17:55:37,044 INFO L87 Difference]: Start difference. First operand 2480 states and 3543 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:55:42,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:55:42,824 INFO L93 Difference]: Finished difference Result 7084 states and 10129 transitions. [2021-11-13 17:55:42,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 17:55:42,825 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-11-13 17:55:42,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:55:42,836 INFO L225 Difference]: With dead ends: 7084 [2021-11-13 17:55:42,837 INFO L226 Difference]: Without dead ends: 4694 [2021-11-13 17:55:42,842 INFO L932 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 [2021-11-13 17:55:42,843 INFO L933 BasicCegarLoop]: 246 mSDtfsCounter, 82 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.81ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.47ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.75ms IncrementalHoareTripleChecker+Time [2021-11-13 17:55:42,843 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [82 Valid, 405 Invalid, 11 Unknown, 0 Unchecked, 1.47ms Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 17.75ms Time] [2021-11-13 17:55:42,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4694 states. [2021-11-13 17:55:48,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4694 to 4516. [2021-11-13 17:55:48,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4516 states, 4515 states have (on average 1.4212624584717608) internal successors, (6417), 4515 states have internal predecessors, (6417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:55:48,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4516 states to 4516 states and 6417 transitions. [2021-11-13 17:55:48,052 INFO L78 Accepts]: Start accepts. Automaton has 4516 states and 6417 transitions. Word has length 115 [2021-11-13 17:55:48,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:55:48,053 INFO L470 AbstractCegarLoop]: Abstraction has 4516 states and 6417 transitions. [2021-11-13 17:55:48,053 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:55:48,053 INFO L276 IsEmpty]: Start isEmpty. Operand 4516 states and 6417 transitions. [2021-11-13 17:55:48,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-13 17:55:48,055 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:55:48,055 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:55:48,055 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2021-11-13 17:55:48,055 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-13 17:55:48,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:55:48,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1836152402, now seen corresponding path program 1 times [2021-11-13 17:55:48,056 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:55:48,057 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198201571] [2021-11-13 17:55:48,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:55:48,057 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:55:48,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:55:48,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:55:48,122 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:55:48,122 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198201571] [2021-11-13 17:55:48,123 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198201571] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:55:48,123 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:55:48,123 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 17:55:48,123 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931622529] [2021-11-13 17:55:48,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:55:48,124 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 17:55:48,124 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:55:48,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 17:55:48,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 17:55:48,125 INFO L87 Difference]: Start difference. First operand 4516 states and 6417 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) [2021-11-13 17:55:58,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:55:58,087 INFO L93 Difference]: Finished difference Result 13016 states and 18443 transitions. [2021-11-13 17:55:58,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 17:55:58,088 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 [2021-11-13 17:55:58,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:55:58,108 INFO L225 Difference]: With dead ends: 13016 [2021-11-13 17:55:58,108 INFO L226 Difference]: Without dead ends: 8590 [2021-11-13 17:55:58,117 INFO L932 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 [2021-11-13 17:55:58,117 INFO L933 BasicCegarLoop]: 239 mSDtfsCounter, 75 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.95ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.43ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.97ms IncrementalHoareTripleChecker+Time [2021-11-13 17:55:58,118 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [75 Valid, 405 Invalid, 11 Unknown, 0 Unchecked, 1.43ms Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 17.97ms Time] [2021-11-13 17:55:58,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8590 states. [2021-11-13 17:56:07,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8590 to 8236. [2021-11-13 17:56:07,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8236 states, 8235 states have (on average 1.4077717061323618) internal successors, (11593), 8235 states have internal predecessors, (11593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:56:07,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8236 states to 8236 states and 11593 transitions. [2021-11-13 17:56:07,605 INFO L78 Accepts]: Start accepts. Automaton has 8236 states and 11593 transitions. Word has length 116 [2021-11-13 17:56:07,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:56:07,606 INFO L470 AbstractCegarLoop]: Abstraction has 8236 states and 11593 transitions. [2021-11-13 17:56:07,606 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) [2021-11-13 17:56:07,606 INFO L276 IsEmpty]: Start isEmpty. Operand 8236 states and 11593 transitions. [2021-11-13 17:56:07,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-11-13 17:56:07,607 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:56:07,608 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:56:07,608 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2021-11-13 17:56:07,608 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-13 17:56:07,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:56:07,609 INFO L85 PathProgramCache]: Analyzing trace with hash 1618075135, now seen corresponding path program 1 times [2021-11-13 17:56:07,609 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:56:07,609 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332784024] [2021-11-13 17:56:07,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:56:07,610 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:56:07,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:07,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:56:07,671 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:56:07,672 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332784024] [2021-11-13 17:56:07,672 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332784024] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:56:07,672 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:56:07,672 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 17:56:07,672 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400347976] [2021-11-13 17:56:07,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:56:07,673 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 17:56:07,673 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:56:07,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 17:56:07,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 17:56:07,674 INFO L87 Difference]: Start difference. First operand 8236 states and 11593 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) [2021-11-13 17:56:25,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:56:25,851 INFO L93 Difference]: Finished difference Result 23824 states and 33355 transitions. [2021-11-13 17:56:25,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 17:56:25,852 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 [2021-11-13 17:56:25,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:56:25,882 INFO L225 Difference]: With dead ends: 23824 [2021-11-13 17:56:25,882 INFO L226 Difference]: Without dead ends: 15678 [2021-11-13 17:56:25,896 INFO L932 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 [2021-11-13 17:56:25,897 INFO L933 BasicCegarLoop]: 232 mSDtfsCounter, 65 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.64ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.49ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.99ms IncrementalHoareTripleChecker+Time [2021-11-13 17:56:25,897 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 405 Invalid, 12 Unknown, 0 Unchecked, 1.49ms Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 18.99ms Time] [2021-11-13 17:56:25,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15678 states. [2021-11-13 17:56:42,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15678 to 14972. [2021-11-13 17:56:42,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14972 states, 14971 states have (on average 1.3894195444526083) internal successors, (20801), 14971 states have internal predecessors, (20801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:56:42,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14972 states to 14972 states and 20801 transitions. [2021-11-13 17:56:42,851 INFO L78 Accepts]: Start accepts. Automaton has 14972 states and 20801 transitions. Word has length 117 [2021-11-13 17:56:42,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:56:42,851 INFO L470 AbstractCegarLoop]: Abstraction has 14972 states and 20801 transitions. [2021-11-13 17:56:42,851 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) [2021-11-13 17:56:42,852 INFO L276 IsEmpty]: Start isEmpty. Operand 14972 states and 20801 transitions. [2021-11-13 17:56:42,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-11-13 17:56:42,852 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:56:42,852 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:56:42,853 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2021-11-13 17:56:42,853 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-13 17:56:42,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:56:42,853 INFO L85 PathProgramCache]: Analyzing trace with hash -1304740322, now seen corresponding path program 1 times [2021-11-13 17:56:42,853 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:56:42,853 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133586196] [2021-11-13 17:56:42,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:56:42,854 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:56:42,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:56:42,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:56:42,943 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:56:42,943 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133586196] [2021-11-13 17:56:42,943 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133586196] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:56:42,943 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:56:42,944 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-13 17:56:42,944 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927993724] [2021-11-13 17:56:42,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:56:42,945 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-13 17:56:42,945 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:56:42,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 17:56:42,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-13 17:56:42,946 INFO L87 Difference]: Start difference. First operand 14972 states and 20801 transitions. Second operand has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 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) [2021-11-13 17:57:14,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:57:14,753 INFO L93 Difference]: Finished difference Result 26382 states and 36426 transitions. [2021-11-13 17:57:14,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-13 17:57:14,754 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 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 [2021-11-13 17:57:14,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:57:14,802 INFO L225 Difference]: With dead ends: 26382 [2021-11-13 17:57:14,802 INFO L226 Difference]: Without dead ends: 26380 [2021-11-13 17:57:14,810 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-11-13 17:57:14,810 INFO L933 BasicCegarLoop]: 247 mSDtfsCounter, 308 mSDsluCounter, 761 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.32ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 1008 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.73ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.51ms IncrementalHoareTripleChecker+Time [2021-11-13 17:57:14,811 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [308 Valid, 1008 Invalid, 43 Unknown, 0 Unchecked, 2.73ms Time], IncrementalHoareTripleChecker [5 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 38.51ms Time] [2021-11-13 17:57:14,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26380 states. [2021-11-13 17:57:33,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26380 to 15452. [2021-11-13 17:57:33,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15452 states, 15451 states have (on average 1.3711086661057537) internal successors, (21185), 15451 states have internal predecessors, (21185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:57:33,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15452 states to 15452 states and 21185 transitions. [2021-11-13 17:57:33,545 INFO L78 Accepts]: Start accepts. Automaton has 15452 states and 21185 transitions. Word has length 118 [2021-11-13 17:57:33,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:57:33,546 INFO L470 AbstractCegarLoop]: Abstraction has 15452 states and 21185 transitions. [2021-11-13 17:57:33,546 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 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) [2021-11-13 17:57:33,546 INFO L276 IsEmpty]: Start isEmpty. Operand 15452 states and 21185 transitions. [2021-11-13 17:57:33,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-11-13 17:57:33,547 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:57:33,547 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:57:33,547 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2021-11-13 17:57:33,547 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-13 17:57:33,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:57:33,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1757610562, now seen corresponding path program 1 times [2021-11-13 17:57:33,548 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:57:33,548 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943277539] [2021-11-13 17:57:33,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:57:33,549 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:57:33,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:57:33,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:57:33,810 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:57:33,810 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943277539] [2021-11-13 17:57:33,810 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943277539] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:57:33,810 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:57:33,811 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-13 17:57:33,811 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481718019] [2021-11-13 17:57:33,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:57:33,812 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-13 17:57:33,812 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:57:33,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-13 17:57:33,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-13 17:57:33,813 INFO L87 Difference]: Start difference. First operand 15452 states and 21185 transitions. Second operand has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 7 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) [2021-11-13 17:58:06,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:58:06,439 INFO L93 Difference]: Finished difference Result 29464 states and 40551 transitions. [2021-11-13 17:58:06,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-13 17:58:06,439 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 7 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 [2021-11-13 17:58:06,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:58:06,479 INFO L225 Difference]: With dead ends: 29464 [2021-11-13 17:58:06,479 INFO L226 Difference]: Without dead ends: 26662 [2021-11-13 17:58:06,487 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-11-13 17:58:06,487 INFO L933 BasicCegarLoop]: 270 mSDtfsCounter, 1173 mSDsluCounter, 642 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 73.06ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1173 SdHoareTripleChecker+Valid, 912 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.88ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 90.51ms IncrementalHoareTripleChecker+Time [2021-11-13 17:58:06,487 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1173 Valid, 912 Invalid, 100 Unknown, 0 Unchecked, 5.88ms Time], IncrementalHoareTripleChecker [4 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 90.51ms Time] [2021-11-13 17:58:06,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26662 states. [2021-11-13 17:58:28,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26662 to 18252. [2021-11-13 17:58:28,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18252 states, 18251 states have (on average 1.3711577447811079) internal successors, (25025), 18251 states have internal predecessors, (25025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:58:28,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18252 states to 18252 states and 25025 transitions. [2021-11-13 17:58:28,465 INFO L78 Accepts]: Start accepts. Automaton has 18252 states and 25025 transitions. Word has length 118 [2021-11-13 17:58:28,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:58:28,465 INFO L470 AbstractCegarLoop]: Abstraction has 18252 states and 25025 transitions. [2021-11-13 17:58:28,465 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.857142857142858) internal successors, (118), 7 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) [2021-11-13 17:58:28,465 INFO L276 IsEmpty]: Start isEmpty. Operand 18252 states and 25025 transitions. [2021-11-13 17:58:28,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-11-13 17:58:28,466 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:58:28,466 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:58:28,466 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2021-11-13 17:58:28,466 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-13 17:58:28,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:58:28,467 INFO L85 PathProgramCache]: Analyzing trace with hash 1602725625, now seen corresponding path program 1 times [2021-11-13 17:58:28,467 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:58:28,467 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696809095] [2021-11-13 17:58:28,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:58:28,467 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:58:28,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:58:28,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:58:28,529 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:58:28,530 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696809095] [2021-11-13 17:58:28,530 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696809095] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:58:28,530 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:58:28,530 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 17:58:28,530 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738144607] [2021-11-13 17:58:28,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:58:28,531 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 17:58:28,531 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:58:28,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 17:58:28,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 17:58:28,532 INFO L87 Difference]: Start difference. First operand 18252 states and 25025 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) [2021-11-13 17:59:00,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 17:59:00,792 INFO L93 Difference]: Finished difference Result 47296 states and 64675 transitions. [2021-11-13 17:59:00,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 17:59:00,793 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 119 [2021-11-13 17:59:00,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 17:59:00,835 INFO L225 Difference]: With dead ends: 47296 [2021-11-13 17:59:00,835 INFO L226 Difference]: Without dead ends: 29134 [2021-11-13 17:59:00,853 INFO L932 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 [2021-11-13 17:59:00,854 INFO L933 BasicCegarLoop]: 263 mSDtfsCounter, 93 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.48ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.52ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.19ms IncrementalHoareTripleChecker+Time [2021-11-13 17:59:00,854 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [93 Valid, 408 Invalid, 11 Unknown, 0 Unchecked, 1.52ms Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 17.19ms Time] [2021-11-13 17:59:00,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29134 states. [2021-11-13 17:59:32,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29134 to 27468. [2021-11-13 17:59:32,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27468 states, 27467 states have (on average 1.3561364546546766) internal successors, (37249), 27467 states have internal predecessors, (37249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 17:59:32,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27468 states to 27468 states and 37249 transitions. [2021-11-13 17:59:32,445 INFO L78 Accepts]: Start accepts. Automaton has 27468 states and 37249 transitions. Word has length 119 [2021-11-13 17:59:32,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 17:59:32,445 INFO L470 AbstractCegarLoop]: Abstraction has 27468 states and 37249 transitions. [2021-11-13 17:59:32,445 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has 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) [2021-11-13 17:59:32,446 INFO L276 IsEmpty]: Start isEmpty. Operand 27468 states and 37249 transitions. [2021-11-13 17:59:32,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2021-11-13 17:59:32,451 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 17:59:32,452 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 17:59:32,452 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2021-11-13 17:59:32,452 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-13 17:59:32,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 17:59:32,452 INFO L85 PathProgramCache]: Analyzing trace with hash -1955512847, now seen corresponding path program 1 times [2021-11-13 17:59:32,453 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 17:59:32,453 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063567625] [2021-11-13 17:59:32,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 17:59:32,453 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 17:59:32,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 17:59:32,523 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 17:59:32,524 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 17:59:32,524 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063567625] [2021-11-13 17:59:32,524 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063567625] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 17:59:32,524 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 17:59:32,524 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-13 17:59:32,525 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440450278] [2021-11-13 17:59:32,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 17:59:32,525 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-13 17:59:32,525 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 17:59:32,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-13 17:59:32,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-13 17:59:32,526 INFO L87 Difference]: Start difference. First operand 27468 states and 37249 transitions. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:00:03,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:00:03,618 INFO L93 Difference]: Finished difference Result 54848 states and 74403 transitions. [2021-11-13 18:00:03,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-13 18:00:03,619 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 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 149 [2021-11-13 18:00:03,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-13 18:00:03,659 INFO L225 Difference]: With dead ends: 54848 [2021-11-13 18:00:03,659 INFO L226 Difference]: Without dead ends: 27470 [2021-11-13 18:00:03,682 INFO L932 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 [2021-11-13 18:00:03,682 INFO L933 BasicCegarLoop]: 230 mSDtfsCounter, 81 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.50ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.25ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.78ms IncrementalHoareTripleChecker+Time [2021-11-13 18:00:03,682 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [81 Valid, 379 Invalid, 10 Unknown, 0 Unchecked, 1.25ms Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 18.78ms Time] [2021-11-13 18:00:03,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27470 states. [2021-11-13 18:00:34,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27470 to 27468. [2021-11-13 18:00:34,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27468 states, 27467 states have (on average 1.340991007390687) internal successors, (36833), 27467 states have internal predecessors, (36833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:00:34,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27468 states to 27468 states and 36833 transitions. [2021-11-13 18:00:34,432 INFO L78 Accepts]: Start accepts. Automaton has 27468 states and 36833 transitions. Word has length 149 [2021-11-13 18:00:34,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-13 18:00:34,432 INFO L470 AbstractCegarLoop]: Abstraction has 27468 states and 36833 transitions. [2021-11-13 18:00:34,432 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:00:34,432 INFO L276 IsEmpty]: Start isEmpty. Operand 27468 states and 36833 transitions. [2021-11-13 18:00:34,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2021-11-13 18:00:34,435 INFO L506 BasicCegarLoop]: Found error trace [2021-11-13 18:00:34,436 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:00:34,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2021-11-13 18:00:34,436 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 13 more)] === [2021-11-13 18:00:34,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:00:34,437 INFO L85 PathProgramCache]: Analyzing trace with hash 15080616, now seen corresponding path program 1 times [2021-11-13 18:00:34,437 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:00:34,437 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129328518] [2021-11-13 18:00:34,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:00:34,438 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:00:34,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:00:34,682 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 14 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:00:34,682 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:00:34,683 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129328518] [2021-11-13 18:00:34,683 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129328518] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-13 18:00:34,683 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [864535140] [2021-11-13 18:00:34,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:00:34,683 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-13 18:00:34,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcef325f-f5b8-49d6-938b-5fb46bfe7d3b/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:00:34,690 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcef325f-f5b8-49d6-938b-5fb46bfe7d3b/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-13 18:00:34,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcef325f-f5b8-49d6-938b-5fb46bfe7d3b/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-13 18:00:34,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:00:34,959 INFO L263 TraceCheckSpWp]: Trace formula consists of 736 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-13 18:00:34,975 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-13 18:00:36,670 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:00:36,671 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-13 18:00:39,565 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:00:39,566 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [864535140] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-13 18:00:39,566 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-13 18:00:39,566 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 28 [2021-11-13 18:00:39,566 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316790588] [2021-11-13 18:00:39,567 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-13 18:00:39,569 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-11-13 18:00:39,569 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:00:39,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-11-13 18:00:39,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=715, Unknown=0, NotChecked=0, Total=812 [2021-11-13 18:00:39,572 INFO L87 Difference]: Start difference. First operand 27468 states and 36833 transitions. Second operand has 29 states, 29 states have (on average 13.689655172413794) internal successors, (397), 28 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)