./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/forester-heap/dll-01-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 7e70badd Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca443a6-ab15-45f9-8254-9dfd371ce542/bin/uautomizer-wIGwrQj20G/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca443a6-ab15-45f9-8254-9dfd371ce542/bin/uautomizer-wIGwrQj20G/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca443a6-ab15-45f9-8254-9dfd371ce542/bin/uautomizer-wIGwrQj20G/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca443a6-ab15-45f9-8254-9dfd371ce542/bin/uautomizer-wIGwrQj20G/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/forester-heap/dll-01-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca443a6-ab15-45f9-8254-9dfd371ce542/bin/uautomizer-wIGwrQj20G/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca443a6-ab15-45f9-8254-9dfd371ce542/bin/uautomizer-wIGwrQj20G --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 652acbc8fb2d659424086f7ee4bd5fc2f45ff1d49f46cde68db4fdee1ed0638e --- Real Ultimate output --- This is Ultimate 0.2.1-dev-7e70bad [2021-11-23 13:06:14,174 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 13:06:14,176 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 13:06:14,213 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 13:06:14,214 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 13:06:14,216 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 13:06:14,218 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 13:06:14,221 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 13:06:14,223 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 13:06:14,225 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 13:06:14,226 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 13:06:14,228 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 13:06:14,229 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 13:06:14,230 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 13:06:14,232 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 13:06:14,234 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 13:06:14,236 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 13:06:14,237 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 13:06:14,240 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 13:06:14,243 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 13:06:14,245 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 13:06:14,247 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 13:06:14,249 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 13:06:14,250 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 13:06:14,254 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 13:06:14,255 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 13:06:14,255 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 13:06:14,256 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 13:06:14,257 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 13:06:14,258 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 13:06:14,259 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 13:06:14,260 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 13:06:14,261 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 13:06:14,262 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 13:06:14,264 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 13:06:14,264 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 13:06:14,265 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 13:06:14,266 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 13:06:14,266 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 13:06:14,267 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 13:06:14,268 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 13:06:14,277 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca443a6-ab15-45f9-8254-9dfd371ce542/bin/uautomizer-wIGwrQj20G/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-11-23 13:06:14,319 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 13:06:14,324 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 13:06:14,325 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 13:06:14,326 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 13:06:14,327 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 13:06:14,327 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 13:06:14,327 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 13:06:14,328 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 13:06:14,328 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 13:06:14,328 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 13:06:14,328 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 13:06:14,328 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 13:06:14,329 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 13:06:14,329 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-23 13:06:14,329 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-23 13:06:14,329 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-23 13:06:14,329 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 13:06:14,329 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 13:06:14,330 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 13:06:14,330 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 13:06:14,330 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 13:06:14,330 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 13:06:14,331 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 13:06:14,331 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 13:06:14,331 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 13:06:14,331 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 13:06:14,331 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 13:06:14,332 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 13:06:14,332 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 13:06:14,332 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_4ca443a6-ab15-45f9-8254-9dfd371ce542/bin/uautomizer-wIGwrQj20G/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca443a6-ab15-45f9-8254-9dfd371ce542/bin/uautomizer-wIGwrQj20G Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 652acbc8fb2d659424086f7ee4bd5fc2f45ff1d49f46cde68db4fdee1ed0638e [2021-11-23 13:06:14,694 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 13:06:14,737 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 13:06:14,740 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 13:06:14,742 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 13:06:14,744 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 13:06:14,746 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca443a6-ab15-45f9-8254-9dfd371ce542/bin/uautomizer-wIGwrQj20G/../../sv-benchmarks/c/forester-heap/dll-01-2.i [2021-11-23 13:06:14,826 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca443a6-ab15-45f9-8254-9dfd371ce542/bin/uautomizer-wIGwrQj20G/data/013ea3d83/2f08378656bc49f5a21a9529b2673bc2/FLAG83a2daef2 [2021-11-23 13:06:15,514 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 13:06:15,515 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca443a6-ab15-45f9-8254-9dfd371ce542/sv-benchmarks/c/forester-heap/dll-01-2.i [2021-11-23 13:06:15,534 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca443a6-ab15-45f9-8254-9dfd371ce542/bin/uautomizer-wIGwrQj20G/data/013ea3d83/2f08378656bc49f5a21a9529b2673bc2/FLAG83a2daef2 [2021-11-23 13:06:15,787 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca443a6-ab15-45f9-8254-9dfd371ce542/bin/uautomizer-wIGwrQj20G/data/013ea3d83/2f08378656bc49f5a21a9529b2673bc2 [2021-11-23 13:06:15,790 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 13:06:15,792 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 13:06:15,794 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 13:06:15,794 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 13:06:15,798 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 13:06:15,799 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:06:15" (1/1) ... [2021-11-23 13:06:15,800 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f6e3d59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:06:15, skipping insertion in model container [2021-11-23 13:06:15,801 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:06:15" (1/1) ... [2021-11-23 13:06:15,809 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 13:06:15,857 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 13:06:16,271 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca443a6-ab15-45f9-8254-9dfd371ce542/sv-benchmarks/c/forester-heap/dll-01-2.i[22080,22093] [2021-11-23 13:06:16,289 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca443a6-ab15-45f9-8254-9dfd371ce542/sv-benchmarks/c/forester-heap/dll-01-2.i[22353,22366] [2021-11-23 13:06:16,292 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca443a6-ab15-45f9-8254-9dfd371ce542/sv-benchmarks/c/forester-heap/dll-01-2.i[22587,22600] [2021-11-23 13:06:16,293 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca443a6-ab15-45f9-8254-9dfd371ce542/sv-benchmarks/c/forester-heap/dll-01-2.i[22657,22670] [2021-11-23 13:06:16,297 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca443a6-ab15-45f9-8254-9dfd371ce542/sv-benchmarks/c/forester-heap/dll-01-2.i[22924,22937] [2021-11-23 13:06:16,298 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca443a6-ab15-45f9-8254-9dfd371ce542/sv-benchmarks/c/forester-heap/dll-01-2.i[23032,23045] [2021-11-23 13:06:16,304 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca443a6-ab15-45f9-8254-9dfd371ce542/sv-benchmarks/c/forester-heap/dll-01-2.i[23263,23276] [2021-11-23 13:06:16,307 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca443a6-ab15-45f9-8254-9dfd371ce542/sv-benchmarks/c/forester-heap/dll-01-2.i[23343,23356] [2021-11-23 13:06:16,309 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca443a6-ab15-45f9-8254-9dfd371ce542/sv-benchmarks/c/forester-heap/dll-01-2.i[23422,23435] [2021-11-23 13:06:16,312 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca443a6-ab15-45f9-8254-9dfd371ce542/sv-benchmarks/c/forester-heap/dll-01-2.i[23512,23525] [2021-11-23 13:06:16,317 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca443a6-ab15-45f9-8254-9dfd371ce542/sv-benchmarks/c/forester-heap/dll-01-2.i[23690,23703] [2021-11-23 13:06:16,321 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca443a6-ab15-45f9-8254-9dfd371ce542/sv-benchmarks/c/forester-heap/dll-01-2.i[23768,23781] [2021-11-23 13:06:16,323 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca443a6-ab15-45f9-8254-9dfd371ce542/sv-benchmarks/c/forester-heap/dll-01-2.i[23845,23858] [2021-11-23 13:06:16,338 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 13:06:16,347 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 13:06:16,389 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca443a6-ab15-45f9-8254-9dfd371ce542/sv-benchmarks/c/forester-heap/dll-01-2.i[22080,22093] [2021-11-23 13:06:16,392 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca443a6-ab15-45f9-8254-9dfd371ce542/sv-benchmarks/c/forester-heap/dll-01-2.i[22353,22366] [2021-11-23 13:06:16,395 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca443a6-ab15-45f9-8254-9dfd371ce542/sv-benchmarks/c/forester-heap/dll-01-2.i[22587,22600] [2021-11-23 13:06:16,396 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca443a6-ab15-45f9-8254-9dfd371ce542/sv-benchmarks/c/forester-heap/dll-01-2.i[22657,22670] [2021-11-23 13:06:16,399 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca443a6-ab15-45f9-8254-9dfd371ce542/sv-benchmarks/c/forester-heap/dll-01-2.i[22924,22937] [2021-11-23 13:06:16,402 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca443a6-ab15-45f9-8254-9dfd371ce542/sv-benchmarks/c/forester-heap/dll-01-2.i[23032,23045] [2021-11-23 13:06:16,404 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca443a6-ab15-45f9-8254-9dfd371ce542/sv-benchmarks/c/forester-heap/dll-01-2.i[23263,23276] [2021-11-23 13:06:16,406 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca443a6-ab15-45f9-8254-9dfd371ce542/sv-benchmarks/c/forester-heap/dll-01-2.i[23343,23356] [2021-11-23 13:06:16,407 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca443a6-ab15-45f9-8254-9dfd371ce542/sv-benchmarks/c/forester-heap/dll-01-2.i[23422,23435] [2021-11-23 13:06:16,408 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca443a6-ab15-45f9-8254-9dfd371ce542/sv-benchmarks/c/forester-heap/dll-01-2.i[23512,23525] [2021-11-23 13:06:16,410 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca443a6-ab15-45f9-8254-9dfd371ce542/sv-benchmarks/c/forester-heap/dll-01-2.i[23690,23703] [2021-11-23 13:06:16,411 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca443a6-ab15-45f9-8254-9dfd371ce542/sv-benchmarks/c/forester-heap/dll-01-2.i[23768,23781] [2021-11-23 13:06:16,418 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca443a6-ab15-45f9-8254-9dfd371ce542/sv-benchmarks/c/forester-heap/dll-01-2.i[23845,23858] [2021-11-23 13:06:16,426 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 13:06:16,462 INFO L208 MainTranslator]: Completed translation [2021-11-23 13:06:16,462 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:06:16 WrapperNode [2021-11-23 13:06:16,462 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 13:06:16,464 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 13:06:16,464 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 13:06:16,464 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 13:06:16,472 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:06:16" (1/1) ... [2021-11-23 13:06:16,490 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:06:16" (1/1) ... [2021-11-23 13:06:16,521 INFO L137 Inliner]: procedures = 119, calls = 45, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 231 [2021-11-23 13:06:16,521 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 13:06:16,522 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 13:06:16,522 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 13:06:16,522 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 13:06:16,534 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:06:16" (1/1) ... [2021-11-23 13:06:16,534 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:06:16" (1/1) ... [2021-11-23 13:06:16,543 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:06:16" (1/1) ... [2021-11-23 13:06:16,543 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:06:16" (1/1) ... [2021-11-23 13:06:16,582 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:06:16" (1/1) ... [2021-11-23 13:06:16,590 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:06:16" (1/1) ... [2021-11-23 13:06:16,593 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:06:16" (1/1) ... [2021-11-23 13:06:16,597 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 13:06:16,598 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 13:06:16,598 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 13:06:16,599 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 13:06:16,600 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:06:16" (1/1) ... [2021-11-23 13:06:16,608 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 13:06:16,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca443a6-ab15-45f9-8254-9dfd371ce542/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:06:16,632 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca443a6-ab15-45f9-8254-9dfd371ce542/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 13:06:16,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca443a6-ab15-45f9-8254-9dfd371ce542/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 13:06:16,685 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 13:06:16,685 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 13:06:16,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 13:06:16,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 13:06:16,685 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 13:06:16,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 13:06:16,686 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 13:06:16,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 13:06:16,845 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 13:06:16,847 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 13:06:17,486 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 13:06:17,502 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 13:06:17,502 INFO L301 CfgBuilder]: Removed 30 assume(true) statements. [2021-11-23 13:06:17,505 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:06:17 BoogieIcfgContainer [2021-11-23 13:06:17,506 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 13:06:17,508 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 13:06:17,509 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 13:06:17,514 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 13:06:17,515 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:06:15" (1/3) ... [2021-11-23 13:06:17,516 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b0b5815 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:06:17, skipping insertion in model container [2021-11-23 13:06:17,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:06:16" (2/3) ... [2021-11-23 13:06:17,517 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b0b5815 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:06:17, skipping insertion in model container [2021-11-23 13:06:17,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:06:17" (3/3) ... [2021-11-23 13:06:17,519 INFO L111 eAbstractionObserver]: Analyzing ICFG dll-01-2.i [2021-11-23 13:06:17,525 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 13:06:17,526 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 86 error locations. [2021-11-23 13:06:17,582 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 13:06:17,589 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=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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 [2021-11-23 13:06:17,589 INFO L340 AbstractCegarLoop]: Starting to check reachability of 86 error locations. [2021-11-23 13:06:17,613 INFO L276 IsEmpty]: Start isEmpty. Operand has 203 states, 116 states have (on average 2.1982758620689653) internal successors, (255), 202 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) [2021-11-23 13:06:17,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-23 13:06:17,619 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:06:17,620 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-11-23 13:06:17,621 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-23 13:06:17,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:06:17,627 INFO L85 PathProgramCache]: Analyzing trace with hash 29857, now seen corresponding path program 1 times [2021-11-23 13:06:17,638 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:06:17,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090886639] [2021-11-23 13:06:17,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:06:17,640 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:06:17,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:06:17,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:06:17,807 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:06:17,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090886639] [2021-11-23 13:06:17,809 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090886639] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:06:17,809 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:06:17,809 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 13:06:17,811 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294369284] [2021-11-23 13:06:17,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:06:17,817 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 13:06:17,817 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:06:17,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 13:06:17,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:06:17,853 INFO L87 Difference]: Start difference. First operand has 203 states, 116 states have (on average 2.1982758620689653) internal successors, (255), 202 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) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:18,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:06:18,082 INFO L93 Difference]: Finished difference Result 201 states and 210 transitions. [2021-11-23 13:06:18,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 13:06:18,085 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2021-11-23 13:06:18,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:06:18,097 INFO L225 Difference]: With dead ends: 201 [2021-11-23 13:06:18,098 INFO L226 Difference]: Without dead ends: 197 [2021-11-23 13:06:18,100 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:06:18,104 INFO L933 BasicCegarLoop]: 122 mSDtfsCounter, 191 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 13:06:18,106 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [191 Valid, 124 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 13:06:18,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2021-11-23 13:06:18,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 193. [2021-11-23 13:06:18,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 117 states have (on average 1.7435897435897436) internal successors, (204), 192 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:18,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 204 transitions. [2021-11-23 13:06:18,167 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 204 transitions. Word has length 3 [2021-11-23 13:06:18,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:06:18,167 INFO L470 AbstractCegarLoop]: Abstraction has 193 states and 204 transitions. [2021-11-23 13:06:18,168 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:18,168 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 204 transitions. [2021-11-23 13:06:18,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-23 13:06:18,169 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:06:18,169 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-11-23 13:06:18,169 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 13:06:18,170 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-23 13:06:18,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:06:18,171 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2021-11-23 13:06:18,172 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:06:18,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981341960] [2021-11-23 13:06:18,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:06:18,173 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:06:18,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:06:18,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:06:18,229 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:06:18,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981341960] [2021-11-23 13:06:18,230 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981341960] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:06:18,230 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:06:18,230 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 13:06:18,231 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822716773] [2021-11-23 13:06:18,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:06:18,232 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 13:06:18,233 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:06:18,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 13:06:18,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:06:18,234 INFO L87 Difference]: Start difference. First operand 193 states and 204 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:18,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:06:18,444 INFO L93 Difference]: Finished difference Result 222 states and 232 transitions. [2021-11-23 13:06:18,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 13:06:18,445 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2021-11-23 13:06:18,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:06:18,456 INFO L225 Difference]: With dead ends: 222 [2021-11-23 13:06:18,457 INFO L226 Difference]: Without dead ends: 222 [2021-11-23 13:06:18,458 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:06:18,465 INFO L933 BasicCegarLoop]: 123 mSDtfsCounter, 181 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 13:06:18,466 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [181 Valid, 149 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 13:06:18,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2021-11-23 13:06:18,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 202. [2021-11-23 13:06:18,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 134 states have (on average 1.671641791044776) internal successors, (224), 201 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) [2021-11-23 13:06:18,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 224 transitions. [2021-11-23 13:06:18,504 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 224 transitions. Word has length 3 [2021-11-23 13:06:18,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:06:18,505 INFO L470 AbstractCegarLoop]: Abstraction has 202 states and 224 transitions. [2021-11-23 13:06:18,505 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:18,506 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 224 transitions. [2021-11-23 13:06:18,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-23 13:06:18,506 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:06:18,507 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-23 13:06:18,507 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 13:06:18,507 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-23 13:06:18,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:06:18,516 INFO L85 PathProgramCache]: Analyzing trace with hash 889446311, now seen corresponding path program 1 times [2021-11-23 13:06:18,516 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:06:18,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487771753] [2021-11-23 13:06:18,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:06:18,517 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:06:18,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:06:18,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:06:18,580 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:06:18,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487771753] [2021-11-23 13:06:18,581 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487771753] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:06:18,582 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:06:18,582 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 13:06:18,582 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028613119] [2021-11-23 13:06:18,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:06:18,583 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 13:06:18,583 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:06:18,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 13:06:18,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:06:18,585 INFO L87 Difference]: Start difference. First operand 202 states and 224 transitions. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:18,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:06:18,649 INFO L93 Difference]: Finished difference Result 217 states and 227 transitions. [2021-11-23 13:06:18,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 13:06:18,650 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-11-23 13:06:18,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:06:18,652 INFO L225 Difference]: With dead ends: 217 [2021-11-23 13:06:18,652 INFO L226 Difference]: Without dead ends: 217 [2021-11-23 13:06:18,653 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 [2021-11-23 13:06:18,657 INFO L933 BasicCegarLoop]: 171 mSDtfsCounter, 177 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 13:06:18,659 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [177 Valid, 204 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 13:06:18,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2021-11-23 13:06:18,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 200. [2021-11-23 13:06:18,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 133 states have (on average 1.6616541353383458) internal successors, (221), 199 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:18,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 221 transitions. [2021-11-23 13:06:18,705 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 221 transitions. Word has length 6 [2021-11-23 13:06:18,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:06:18,706 INFO L470 AbstractCegarLoop]: Abstraction has 200 states and 221 transitions. [2021-11-23 13:06:18,707 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:18,707 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 221 transitions. [2021-11-23 13:06:18,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-23 13:06:18,708 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:06:18,708 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:06:18,708 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 13:06:18,709 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-23 13:06:18,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:06:18,710 INFO L85 PathProgramCache]: Analyzing trace with hash 2020777177, now seen corresponding path program 1 times [2021-11-23 13:06:18,711 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:06:18,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602708188] [2021-11-23 13:06:18,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:06:18,716 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:06:18,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:06:18,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:06:18,852 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:06:18,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602708188] [2021-11-23 13:06:18,858 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602708188] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:06:18,862 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:06:18,862 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 13:06:18,863 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882713051] [2021-11-23 13:06:18,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:06:18,864 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 13:06:18,864 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:06:18,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 13:06:18,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 13:06:18,865 INFO L87 Difference]: Start difference. First operand 200 states and 221 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:19,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:06:19,119 INFO L93 Difference]: Finished difference Result 199 states and 220 transitions. [2021-11-23 13:06:19,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 13:06:19,120 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-23 13:06:19,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:06:19,122 INFO L225 Difference]: With dead ends: 199 [2021-11-23 13:06:19,123 INFO L226 Difference]: Without dead ends: 199 [2021-11-23 13:06:19,123 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-23 13:06:19,127 INFO L933 BasicCegarLoop]: 185 mSDtfsCounter, 4 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 13:06:19,129 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 539 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 13:06:19,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2021-11-23 13:06:19,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 199. [2021-11-23 13:06:19,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 133 states have (on average 1.6541353383458646) internal successors, (220), 198 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:19,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 220 transitions. [2021-11-23 13:06:19,153 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 220 transitions. Word has length 12 [2021-11-23 13:06:19,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:06:19,154 INFO L470 AbstractCegarLoop]: Abstraction has 199 states and 220 transitions. [2021-11-23 13:06:19,155 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:19,155 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 220 transitions. [2021-11-23 13:06:19,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-23 13:06:19,156 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:06:19,156 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:06:19,156 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 13:06:19,157 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr12REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-23 13:06:19,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:06:19,159 INFO L85 PathProgramCache]: Analyzing trace with hash 2020777178, now seen corresponding path program 1 times [2021-11-23 13:06:19,159 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:06:19,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554075455] [2021-11-23 13:06:19,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:06:19,160 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:06:19,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:06:19,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:06:19,343 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:06:19,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554075455] [2021-11-23 13:06:19,344 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554075455] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:06:19,344 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:06:19,344 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 13:06:19,345 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017705042] [2021-11-23 13:06:19,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:06:19,345 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 13:06:19,346 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:06:19,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 13:06:19,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 13:06:19,347 INFO L87 Difference]: Start difference. First operand 199 states and 220 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:19,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:06:19,609 INFO L93 Difference]: Finished difference Result 198 states and 219 transitions. [2021-11-23 13:06:19,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 13:06:19,610 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-23 13:06:19,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:06:19,611 INFO L225 Difference]: With dead ends: 198 [2021-11-23 13:06:19,612 INFO L226 Difference]: Without dead ends: 198 [2021-11-23 13:06:19,612 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-23 13:06:19,613 INFO L933 BasicCegarLoop]: 185 mSDtfsCounter, 2 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 548 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 13:06:19,614 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 548 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 13:06:19,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2021-11-23 13:06:19,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2021-11-23 13:06:19,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 133 states have (on average 1.6466165413533835) internal successors, (219), 197 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:19,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 219 transitions. [2021-11-23 13:06:19,621 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 219 transitions. Word has length 12 [2021-11-23 13:06:19,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:06:19,622 INFO L470 AbstractCegarLoop]: Abstraction has 198 states and 219 transitions. [2021-11-23 13:06:19,622 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:19,622 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 219 transitions. [2021-11-23 13:06:19,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-23 13:06:19,623 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:06:19,623 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:06:19,623 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 13:06:19,624 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-23 13:06:19,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:06:19,625 INFO L85 PathProgramCache]: Analyzing trace with hash 373192235, now seen corresponding path program 1 times [2021-11-23 13:06:19,625 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:06:19,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986657736] [2021-11-23 13:06:19,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:06:19,626 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:06:19,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:06:19,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:06:19,663 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:06:19,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986657736] [2021-11-23 13:06:19,663 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986657736] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:06:19,664 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:06:19,664 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 13:06:19,664 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267957767] [2021-11-23 13:06:19,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:06:19,665 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 13:06:19,665 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:06:19,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 13:06:19,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:06:19,667 INFO L87 Difference]: Start difference. First operand 198 states and 219 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:19,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:06:19,679 INFO L93 Difference]: Finished difference Result 199 states and 220 transitions. [2021-11-23 13:06:19,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 13:06:19,680 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-11-23 13:06:19,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:06:19,682 INFO L225 Difference]: With dead ends: 199 [2021-11-23 13:06:19,682 INFO L226 Difference]: Without dead ends: 199 [2021-11-23 13:06:19,683 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 [2021-11-23 13:06:19,684 INFO L933 BasicCegarLoop]: 187 mSDtfsCounter, 0 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 13:06:19,684 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 368 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 13:06:19,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2021-11-23 13:06:19,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 199. [2021-11-23 13:06:19,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 134 states have (on average 1.6417910447761195) internal successors, (220), 198 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:19,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 220 transitions. [2021-11-23 13:06:19,694 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 220 transitions. Word has length 14 [2021-11-23 13:06:19,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:06:19,695 INFO L470 AbstractCegarLoop]: Abstraction has 199 states and 220 transitions. [2021-11-23 13:06:19,696 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:19,696 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 220 transitions. [2021-11-23 13:06:19,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-23 13:06:19,697 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:06:19,697 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:06:19,698 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-23 13:06:19,698 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-23 13:06:19,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:06:19,705 INFO L85 PathProgramCache]: Analyzing trace with hash -1583692102, now seen corresponding path program 1 times [2021-11-23 13:06:19,706 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:06:19,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932044831] [2021-11-23 13:06:19,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:06:19,707 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:06:19,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:06:19,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:06:19,924 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:06:19,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932044831] [2021-11-23 13:06:19,924 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932044831] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:06:19,925 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:06:19,925 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-23 13:06:19,925 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317931293] [2021-11-23 13:06:19,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:06:19,926 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 13:06:19,926 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:06:19,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 13:06:19,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-23 13:06:19,928 INFO L87 Difference]: Start difference. First operand 199 states and 220 transitions. Second operand has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:20,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:06:20,302 INFO L93 Difference]: Finished difference Result 198 states and 219 transitions. [2021-11-23 13:06:20,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-23 13:06:20,303 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-11-23 13:06:20,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:06:20,304 INFO L225 Difference]: With dead ends: 198 [2021-11-23 13:06:20,305 INFO L226 Difference]: Without dead ends: 198 [2021-11-23 13:06:20,305 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2021-11-23 13:06:20,306 INFO L933 BasicCegarLoop]: 121 mSDtfsCounter, 175 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 456 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 13:06:20,306 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 456 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 13:06:20,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2021-11-23 13:06:20,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2021-11-23 13:06:20,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 134 states have (on average 1.6343283582089552) internal successors, (219), 197 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:20,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 219 transitions. [2021-11-23 13:06:20,313 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 219 transitions. Word has length 15 [2021-11-23 13:06:20,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:06:20,314 INFO L470 AbstractCegarLoop]: Abstraction has 198 states and 219 transitions. [2021-11-23 13:06:20,314 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:20,314 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 219 transitions. [2021-11-23 13:06:20,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-23 13:06:20,315 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:06:20,315 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:06:20,315 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-23 13:06:20,315 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr16REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-23 13:06:20,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:06:20,316 INFO L85 PathProgramCache]: Analyzing trace with hash -1583692101, now seen corresponding path program 1 times [2021-11-23 13:06:20,316 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:06:20,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199133231] [2021-11-23 13:06:20,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:06:20,318 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:06:20,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:06:20,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:06:20,498 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:06:20,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199133231] [2021-11-23 13:06:20,498 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199133231] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:06:20,501 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:06:20,501 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-23 13:06:20,502 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682808577] [2021-11-23 13:06:20,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:06:20,502 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 13:06:20,503 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:06:20,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 13:06:20,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-23 13:06:20,504 INFO L87 Difference]: Start difference. First operand 198 states and 219 transitions. Second operand has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:21,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:06:21,052 INFO L93 Difference]: Finished difference Result 197 states and 218 transitions. [2021-11-23 13:06:21,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-23 13:06:21,053 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-11-23 13:06:21,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:06:21,054 INFO L225 Difference]: With dead ends: 197 [2021-11-23 13:06:21,054 INFO L226 Difference]: Without dead ends: 197 [2021-11-23 13:06:21,054 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2021-11-23 13:06:21,055 INFO L933 BasicCegarLoop]: 121 mSDtfsCounter, 169 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 532 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 577 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 532 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-23 13:06:21,055 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [169 Valid, 577 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 532 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-23 13:06:21,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2021-11-23 13:06:21,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 197. [2021-11-23 13:06:21,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 134 states have (on average 1.626865671641791) internal successors, (218), 196 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:21,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 218 transitions. [2021-11-23 13:06:21,060 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 218 transitions. Word has length 15 [2021-11-23 13:06:21,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:06:21,061 INFO L470 AbstractCegarLoop]: Abstraction has 197 states and 218 transitions. [2021-11-23 13:06:21,061 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.142857142857143) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:21,061 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 218 transitions. [2021-11-23 13:06:21,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-23 13:06:21,062 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:06:21,062 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:06:21,062 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-23 13:06:21,062 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-23 13:06:21,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:06:21,063 INFO L85 PathProgramCache]: Analyzing trace with hash -2137878992, now seen corresponding path program 1 times [2021-11-23 13:06:21,063 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:06:21,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567145299] [2021-11-23 13:06:21,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:06:21,064 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:06:21,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:06:21,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:06:21,171 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:06:21,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567145299] [2021-11-23 13:06:21,171 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567145299] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:06:21,171 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:06:21,171 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-23 13:06:21,172 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363325525] [2021-11-23 13:06:21,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:06:21,173 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-23 13:06:21,173 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:06:21,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-23 13:06:21,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-23 13:06:21,175 INFO L87 Difference]: Start difference. First operand 197 states and 218 transitions. Second operand has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:21,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:06:21,437 INFO L93 Difference]: Finished difference Result 289 states and 316 transitions. [2021-11-23 13:06:21,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-23 13:06:21,438 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-11-23 13:06:21,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:06:21,440 INFO L225 Difference]: With dead ends: 289 [2021-11-23 13:06:21,440 INFO L226 Difference]: Without dead ends: 289 [2021-11-23 13:06:21,441 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=98, Unknown=0, NotChecked=0, Total=156 [2021-11-23 13:06:21,442 INFO L933 BasicCegarLoop]: 160 mSDtfsCounter, 199 mSDsluCounter, 491 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 651 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 13:06:21,442 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [199 Valid, 651 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 13:06:21,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2021-11-23 13:06:21,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 194. [2021-11-23 13:06:21,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 132 states have (on average 1.628787878787879) internal successors, (215), 193 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:21,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 215 transitions. [2021-11-23 13:06:21,453 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 215 transitions. Word has length 16 [2021-11-23 13:06:21,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:06:21,454 INFO L470 AbstractCegarLoop]: Abstraction has 194 states and 215 transitions. [2021-11-23 13:06:21,454 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 7 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:21,454 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 215 transitions. [2021-11-23 13:06:21,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-23 13:06:21,455 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:06:21,455 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:06:21,456 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-23 13:06:21,456 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr22REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-23 13:06:21,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:06:21,456 INFO L85 PathProgramCache]: Analyzing trace with hash 1339025717, now seen corresponding path program 1 times [2021-11-23 13:06:21,457 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:06:21,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309139991] [2021-11-23 13:06:21,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:06:21,457 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:06:21,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:06:21,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:06:21,548 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:06:21,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309139991] [2021-11-23 13:06:21,548 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309139991] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:06:21,548 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:06:21,549 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 13:06:21,549 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138597433] [2021-11-23 13:06:21,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:06:21,549 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 13:06:21,549 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:06:21,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 13:06:21,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 13:06:21,550 INFO L87 Difference]: Start difference. First operand 194 states and 215 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:21,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:06:21,736 INFO L93 Difference]: Finished difference Result 290 states and 316 transitions. [2021-11-23 13:06:21,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 13:06:21,736 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-23 13:06:21,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:06:21,739 INFO L225 Difference]: With dead ends: 290 [2021-11-23 13:06:21,739 INFO L226 Difference]: Without dead ends: 290 [2021-11-23 13:06:21,739 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-23 13:06:21,740 INFO L933 BasicCegarLoop]: 161 mSDtfsCounter, 102 mSDsluCounter, 453 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 614 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:06:21,740 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 614 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:06:21,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2021-11-23 13:06:21,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 197. [2021-11-23 13:06:21,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 135 states have (on average 1.614814814814815) internal successors, (218), 196 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:21,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 218 transitions. [2021-11-23 13:06:21,749 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 218 transitions. Word has length 18 [2021-11-23 13:06:21,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:06:21,749 INFO L470 AbstractCegarLoop]: Abstraction has 197 states and 218 transitions. [2021-11-23 13:06:21,749 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:21,750 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 218 transitions. [2021-11-23 13:06:21,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-23 13:06:21,751 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:06:21,752 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] [2021-11-23 13:06:21,752 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-23 13:06:21,752 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr22REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-23 13:06:21,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:06:21,753 INFO L85 PathProgramCache]: Analyzing trace with hash -1029802310, now seen corresponding path program 1 times [2021-11-23 13:06:21,753 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:06:21,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302503379] [2021-11-23 13:06:21,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:06:21,754 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:06:21,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:06:21,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:06:21,830 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:06:21,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302503379] [2021-11-23 13:06:21,830 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302503379] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:06:21,830 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:06:21,830 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 13:06:21,831 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791653271] [2021-11-23 13:06:21,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:06:21,832 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 13:06:21,833 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:06:21,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 13:06:21,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 13:06:21,834 INFO L87 Difference]: Start difference. First operand 197 states and 218 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:22,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:06:22,008 INFO L93 Difference]: Finished difference Result 191 states and 211 transitions. [2021-11-23 13:06:22,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 13:06:22,009 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-11-23 13:06:22,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:06:22,011 INFO L225 Difference]: With dead ends: 191 [2021-11-23 13:06:22,011 INFO L226 Difference]: Without dead ends: 191 [2021-11-23 13:06:22,011 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 13:06:22,012 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 257 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 13:06:22,012 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [257 Valid, 118 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 13:06:22,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2021-11-23 13:06:22,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 187. [2021-11-23 13:06:22,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 137 states have (on average 1.5182481751824817) internal successors, (208), 186 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:22,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 208 transitions. [2021-11-23 13:06:22,018 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 208 transitions. Word has length 20 [2021-11-23 13:06:22,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:06:22,018 INFO L470 AbstractCegarLoop]: Abstraction has 187 states and 208 transitions. [2021-11-23 13:06:22,019 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:22,019 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 208 transitions. [2021-11-23 13:06:22,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-23 13:06:22,020 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:06:22,020 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] [2021-11-23 13:06:22,020 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-23 13:06:22,021 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr23REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-23 13:06:22,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:06:22,022 INFO L85 PathProgramCache]: Analyzing trace with hash -1029802309, now seen corresponding path program 1 times [2021-11-23 13:06:22,022 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:06:22,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118646824] [2021-11-23 13:06:22,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:06:22,024 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:06:22,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:06:22,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:06:22,128 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:06:22,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118646824] [2021-11-23 13:06:22,129 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118646824] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:06:22,129 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:06:22,129 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 13:06:22,129 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984148841] [2021-11-23 13:06:22,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:06:22,130 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 13:06:22,130 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:06:22,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 13:06:22,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 13:06:22,131 INFO L87 Difference]: Start difference. First operand 187 states and 208 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:22,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:06:22,380 INFO L93 Difference]: Finished difference Result 248 states and 262 transitions. [2021-11-23 13:06:22,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 13:06:22,380 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-11-23 13:06:22,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:06:22,382 INFO L225 Difference]: With dead ends: 248 [2021-11-23 13:06:22,382 INFO L226 Difference]: Without dead ends: 248 [2021-11-23 13:06:22,383 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 13:06:22,384 INFO L933 BasicCegarLoop]: 103 mSDtfsCounter, 244 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 13:06:22,384 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [244 Valid, 203 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 13:06:22,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2021-11-23 13:06:22,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 211. [2021-11-23 13:06:22,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 161 states have (on average 1.5279503105590062) internal successors, (246), 210 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:22,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 246 transitions. [2021-11-23 13:06:22,397 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 246 transitions. Word has length 20 [2021-11-23 13:06:22,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:06:22,397 INFO L470 AbstractCegarLoop]: Abstraction has 211 states and 246 transitions. [2021-11-23 13:06:22,398 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:22,398 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 246 transitions. [2021-11-23 13:06:22,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-23 13:06:22,402 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:06:22,402 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] [2021-11-23 13:06:22,403 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-23 13:06:22,403 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-23 13:06:22,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:06:22,404 INFO L85 PathProgramCache]: Analyzing trace with hash -1797484881, now seen corresponding path program 1 times [2021-11-23 13:06:22,404 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:06:22,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576719426] [2021-11-23 13:06:22,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:06:22,404 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:06:22,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:06:22,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:06:22,468 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:06:22,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576719426] [2021-11-23 13:06:22,468 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576719426] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:06:22,468 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:06:22,469 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 13:06:22,469 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310195025] [2021-11-23 13:06:22,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:06:22,469 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 13:06:22,470 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:06:22,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 13:06:22,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 13:06:22,471 INFO L87 Difference]: Start difference. First operand 211 states and 246 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:22,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:06:22,621 INFO L93 Difference]: Finished difference Result 243 states and 256 transitions. [2021-11-23 13:06:22,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 13:06:22,622 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-11-23 13:06:22,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:06:22,624 INFO L225 Difference]: With dead ends: 243 [2021-11-23 13:06:22,624 INFO L226 Difference]: Without dead ends: 243 [2021-11-23 13:06:22,624 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 13:06:22,625 INFO L933 BasicCegarLoop]: 143 mSDtfsCounter, 234 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:06:22,626 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [234 Valid, 273 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:06:22,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2021-11-23 13:06:22,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 209. [2021-11-23 13:06:22,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 160 states have (on average 1.51875) internal successors, (243), 208 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:22,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 243 transitions. [2021-11-23 13:06:22,636 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 243 transitions. Word has length 22 [2021-11-23 13:06:22,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:06:22,636 INFO L470 AbstractCegarLoop]: Abstraction has 209 states and 243 transitions. [2021-11-23 13:06:22,636 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:22,637 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 243 transitions. [2021-11-23 13:06:22,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-23 13:06:22,637 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:06:22,638 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] [2021-11-23 13:06:22,638 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-23 13:06:22,638 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr26REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-23 13:06:22,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:06:22,639 INFO L85 PathProgramCache]: Analyzing trace with hash 110847663, now seen corresponding path program 1 times [2021-11-23 13:06:22,639 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:06:22,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812632882] [2021-11-23 13:06:22,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:06:22,640 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:06:22,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:06:22,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:06:22,697 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:06:22,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812632882] [2021-11-23 13:06:22,697 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812632882] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:06:22,697 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:06:22,698 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 13:06:22,698 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130228635] [2021-11-23 13:06:22,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:06:22,698 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 13:06:22,699 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:06:22,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 13:06:22,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 13:06:22,700 INFO L87 Difference]: Start difference. First operand 209 states and 243 transitions. Second operand has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:22,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:06:22,906 INFO L93 Difference]: Finished difference Result 208 states and 241 transitions. [2021-11-23 13:06:22,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 13:06:22,907 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-11-23 13:06:22,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:06:22,909 INFO L225 Difference]: With dead ends: 208 [2021-11-23 13:06:22,909 INFO L226 Difference]: Without dead ends: 208 [2021-11-23 13:06:22,909 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-23 13:06:22,910 INFO L933 BasicCegarLoop]: 162 mSDtfsCounter, 9 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 13:06:22,910 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 469 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 13:06:22,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2021-11-23 13:06:22,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 208. [2021-11-23 13:06:22,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 160 states have (on average 1.50625) internal successors, (241), 207 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:22,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 241 transitions. [2021-11-23 13:06:22,920 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 241 transitions. Word has length 23 [2021-11-23 13:06:22,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:06:22,923 INFO L470 AbstractCegarLoop]: Abstraction has 208 states and 241 transitions. [2021-11-23 13:06:22,923 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:22,923 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 241 transitions. [2021-11-23 13:06:22,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-23 13:06:22,929 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:06:22,929 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] [2021-11-23 13:06:22,929 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-23 13:06:22,929 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr27REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-23 13:06:22,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:06:22,930 INFO L85 PathProgramCache]: Analyzing trace with hash 110847664, now seen corresponding path program 1 times [2021-11-23 13:06:22,930 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:06:22,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373965960] [2021-11-23 13:06:22,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:06:22,931 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:06:22,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:06:23,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:06:23,002 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:06:23,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373965960] [2021-11-23 13:06:23,002 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373965960] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:06:23,002 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:06:23,002 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 13:06:23,003 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402116571] [2021-11-23 13:06:23,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:06:23,003 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 13:06:23,003 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:06:23,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 13:06:23,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 13:06:23,004 INFO L87 Difference]: Start difference. First operand 208 states and 241 transitions. Second operand has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:23,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:06:23,186 INFO L93 Difference]: Finished difference Result 207 states and 239 transitions. [2021-11-23 13:06:23,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 13:06:23,187 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-11-23 13:06:23,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:06:23,188 INFO L225 Difference]: With dead ends: 207 [2021-11-23 13:06:23,188 INFO L226 Difference]: Without dead ends: 207 [2021-11-23 13:06:23,189 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-23 13:06:23,189 INFO L933 BasicCegarLoop]: 163 mSDtfsCounter, 4 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 458 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 13:06:23,190 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 458 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 13:06:23,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2021-11-23 13:06:23,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 207. [2021-11-23 13:06:23,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 160 states have (on average 1.49375) internal successors, (239), 206 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:23,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 239 transitions. [2021-11-23 13:06:23,195 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 239 transitions. Word has length 23 [2021-11-23 13:06:23,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:06:23,195 INFO L470 AbstractCegarLoop]: Abstraction has 207 states and 239 transitions. [2021-11-23 13:06:23,195 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:23,196 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 239 transitions. [2021-11-23 13:06:23,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 13:06:23,196 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:06:23,196 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] [2021-11-23 13:06:23,196 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-23 13:06:23,197 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr30REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-23 13:06:23,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:06:23,197 INFO L85 PathProgramCache]: Analyzing trace with hash -398547279, now seen corresponding path program 1 times [2021-11-23 13:06:23,197 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:06:23,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297593149] [2021-11-23 13:06:23,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:06:23,198 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:06:23,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:06:23,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:06:23,306 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:06:23,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297593149] [2021-11-23 13:06:23,308 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297593149] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:06:23,308 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:06:23,308 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-23 13:06:23,308 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069918314] [2021-11-23 13:06:23,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:06:23,309 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-23 13:06:23,309 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:06:23,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-23 13:06:23,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-23 13:06:23,310 INFO L87 Difference]: Start difference. First operand 207 states and 239 transitions. Second operand has 9 states, 8 states have (on average 3.375) internal successors, (27), 9 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:23,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:06:23,661 INFO L93 Difference]: Finished difference Result 206 states and 238 transitions. [2021-11-23 13:06:23,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-23 13:06:23,661 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 3.375) internal successors, (27), 9 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-11-23 13:06:23,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:06:23,663 INFO L225 Difference]: With dead ends: 206 [2021-11-23 13:06:23,663 INFO L226 Difference]: Without dead ends: 206 [2021-11-23 13:06:23,663 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2021-11-23 13:06:23,664 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 246 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-23 13:06:23,664 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [246 Valid, 434 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 457 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-23 13:06:23,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2021-11-23 13:06:23,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 206. [2021-11-23 13:06:23,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 160 states have (on average 1.4875) internal successors, (238), 205 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:23,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 238 transitions. [2021-11-23 13:06:23,670 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 238 transitions. Word has length 27 [2021-11-23 13:06:23,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:06:23,670 INFO L470 AbstractCegarLoop]: Abstraction has 206 states and 238 transitions. [2021-11-23 13:06:23,670 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.375) internal successors, (27), 9 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:23,670 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 238 transitions. [2021-11-23 13:06:23,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 13:06:23,671 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:06:23,671 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] [2021-11-23 13:06:23,671 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-23 13:06:23,671 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr31REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-23 13:06:23,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:06:23,672 INFO L85 PathProgramCache]: Analyzing trace with hash -398547278, now seen corresponding path program 1 times [2021-11-23 13:06:23,672 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:06:23,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101501955] [2021-11-23 13:06:23,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:06:23,675 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:06:23,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:06:23,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:06:23,858 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:06:23,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101501955] [2021-11-23 13:06:23,858 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101501955] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:06:23,859 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:06:23,859 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-23 13:06:23,859 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158151078] [2021-11-23 13:06:23,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:06:23,860 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-23 13:06:23,861 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:06:23,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-23 13:06:23,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-11-23 13:06:23,861 INFO L87 Difference]: Start difference. First operand 206 states and 238 transitions. Second operand has 10 states, 9 states have (on average 3.0) internal successors, (27), 10 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:24,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:06:24,547 INFO L93 Difference]: Finished difference Result 198 states and 230 transitions. [2021-11-23 13:06:24,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-23 13:06:24,547 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.0) internal successors, (27), 10 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-11-23 13:06:24,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:06:24,548 INFO L225 Difference]: With dead ends: 198 [2021-11-23 13:06:24,549 INFO L226 Difference]: Without dead ends: 198 [2021-11-23 13:06:24,549 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=140, Invalid=366, Unknown=0, NotChecked=0, Total=506 [2021-11-23 13:06:24,550 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 263 mSDsluCounter, 462 mSDsCounter, 0 mSdLazyCounter, 609 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-23 13:06:24,550 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [263 Valid, 559 Invalid, 640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 609 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-23 13:06:24,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2021-11-23 13:06:24,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 188. [2021-11-23 13:06:24,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 152 states have (on average 1.4407894736842106) internal successors, (219), 187 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:24,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 219 transitions. [2021-11-23 13:06:24,555 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 219 transitions. Word has length 27 [2021-11-23 13:06:24,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:06:24,555 INFO L470 AbstractCegarLoop]: Abstraction has 188 states and 219 transitions. [2021-11-23 13:06:24,556 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.0) internal successors, (27), 10 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:24,556 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 219 transitions. [2021-11-23 13:06:24,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-23 13:06:24,557 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:06:24,557 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] [2021-11-23 13:06:24,557 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-23 13:06:24,557 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-23 13:06:24,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:06:24,558 INFO L85 PathProgramCache]: Analyzing trace with hash 329779259, now seen corresponding path program 1 times [2021-11-23 13:06:24,558 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:06:24,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097093413] [2021-11-23 13:06:24,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:06:24,558 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:06:24,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:06:24,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:06:24,579 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:06:24,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097093413] [2021-11-23 13:06:24,579 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097093413] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:06:24,579 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:06:24,579 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 13:06:24,580 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388785246] [2021-11-23 13:06:24,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:06:24,580 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 13:06:24,580 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:06:24,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 13:06:24,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:06:24,581 INFO L87 Difference]: Start difference. First operand 188 states and 219 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:24,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:06:24,590 INFO L93 Difference]: Finished difference Result 262 states and 307 transitions. [2021-11-23 13:06:24,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 13:06:24,591 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-11-23 13:06:24,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:06:24,592 INFO L225 Difference]: With dead ends: 262 [2021-11-23 13:06:24,593 INFO L226 Difference]: Without dead ends: 262 [2021-11-23 13:06:24,593 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 [2021-11-23 13:06:24,594 INFO L933 BasicCegarLoop]: 156 mSDtfsCounter, 52 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 13:06:24,594 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 303 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 13:06:24,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2021-11-23 13:06:24,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 194. [2021-11-23 13:06:24,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 158 states have (on average 1.4367088607594938) internal successors, (227), 193 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:24,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 227 transitions. [2021-11-23 13:06:24,600 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 227 transitions. Word has length 28 [2021-11-23 13:06:24,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:06:24,600 INFO L470 AbstractCegarLoop]: Abstraction has 194 states and 227 transitions. [2021-11-23 13:06:24,600 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:24,601 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 227 transitions. [2021-11-23 13:06:24,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-23 13:06:24,601 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:06:24,601 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] [2021-11-23 13:06:24,601 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-23 13:06:24,602 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-23 13:06:24,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:06:24,602 INFO L85 PathProgramCache]: Analyzing trace with hash -751842895, now seen corresponding path program 1 times [2021-11-23 13:06:24,602 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:06:24,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033300579] [2021-11-23 13:06:24,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:06:24,603 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:06:24,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:06:24,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:06:24,657 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:06:24,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033300579] [2021-11-23 13:06:24,657 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033300579] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:06:24,657 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:06:24,657 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 13:06:24,658 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96736729] [2021-11-23 13:06:24,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:06:24,659 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 13:06:24,659 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:06:24,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 13:06:24,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-23 13:06:24,660 INFO L87 Difference]: Start difference. First operand 194 states and 227 transitions. Second operand has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:24,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:06:24,798 INFO L93 Difference]: Finished difference Result 199 states and 233 transitions. [2021-11-23 13:06:24,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 13:06:24,799 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-11-23 13:06:24,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:06:24,800 INFO L225 Difference]: With dead ends: 199 [2021-11-23 13:06:24,800 INFO L226 Difference]: Without dead ends: 199 [2021-11-23 13:06:24,801 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2021-11-23 13:06:24,801 INFO L933 BasicCegarLoop]: 103 mSDtfsCounter, 235 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:06:24,801 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [235 Valid, 232 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:06:24,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2021-11-23 13:06:24,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 190. [2021-11-23 13:06:24,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 156 states have (on average 1.4294871794871795) internal successors, (223), 189 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:24,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 223 transitions. [2021-11-23 13:06:24,807 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 223 transitions. Word has length 29 [2021-11-23 13:06:24,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:06:24,807 INFO L470 AbstractCegarLoop]: Abstraction has 190 states and 223 transitions. [2021-11-23 13:06:24,807 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:24,807 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 223 transitions. [2021-11-23 13:06:24,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-23 13:06:24,808 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:06:24,808 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] [2021-11-23 13:06:24,808 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-23 13:06:24,808 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-23 13:06:24,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:06:24,809 INFO L85 PathProgramCache]: Analyzing trace with hash 1633211075, now seen corresponding path program 1 times [2021-11-23 13:06:24,809 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:06:24,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128236242] [2021-11-23 13:06:24,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:06:24,810 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:06:24,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:06:24,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:06:24,837 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:06:24,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128236242] [2021-11-23 13:06:24,837 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128236242] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:06:24,837 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:06:24,838 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 13:06:24,838 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393035753] [2021-11-23 13:06:24,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:06:24,838 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 13:06:24,839 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:06:24,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 13:06:24,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:06:24,839 INFO L87 Difference]: Start difference. First operand 190 states and 223 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:24,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:06:24,861 INFO L93 Difference]: Finished difference Result 188 states and 220 transitions. [2021-11-23 13:06:24,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 13:06:24,862 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2021-11-23 13:06:24,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:06:24,863 INFO L225 Difference]: With dead ends: 188 [2021-11-23 13:06:24,864 INFO L226 Difference]: Without dead ends: 188 [2021-11-23 13:06:24,864 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 [2021-11-23 13:06:24,865 INFO L933 BasicCegarLoop]: 141 mSDtfsCounter, 20 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 13:06:24,866 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 266 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 13:06:24,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2021-11-23 13:06:24,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 188. [2021-11-23 13:06:24,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 155 states have (on average 1.4193548387096775) internal successors, (220), 187 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:24,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 220 transitions. [2021-11-23 13:06:24,876 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 220 transitions. Word has length 29 [2021-11-23 13:06:24,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:06:24,876 INFO L470 AbstractCegarLoop]: Abstraction has 188 states and 220 transitions. [2021-11-23 13:06:24,876 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:24,877 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 220 transitions. [2021-11-23 13:06:24,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-23 13:06:24,878 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:06:24,878 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] [2021-11-23 13:06:24,878 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-23 13:06:24,879 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr55REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-23 13:06:24,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:06:24,879 INFO L85 PathProgramCache]: Analyzing trace with hash -910059888, now seen corresponding path program 1 times [2021-11-23 13:06:24,879 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:06:24,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461422087] [2021-11-23 13:06:24,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:06:24,880 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:06:24,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:06:25,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:06:25,065 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:06:25,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461422087] [2021-11-23 13:06:25,066 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461422087] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:06:25,066 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:06:25,066 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-23 13:06:25,066 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382382357] [2021-11-23 13:06:25,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:06:25,070 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-23 13:06:25,071 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:06:25,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-23 13:06:25,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-23 13:06:25,072 INFO L87 Difference]: Start difference. First operand 188 states and 220 transitions. Second operand has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:25,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:06:25,504 INFO L93 Difference]: Finished difference Result 291 states and 320 transitions. [2021-11-23 13:06:25,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-23 13:06:25,509 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2021-11-23 13:06:25,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:06:25,510 INFO L225 Difference]: With dead ends: 291 [2021-11-23 13:06:25,510 INFO L226 Difference]: Without dead ends: 291 [2021-11-23 13:06:25,510 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2021-11-23 13:06:25,511 INFO L933 BasicCegarLoop]: 142 mSDtfsCounter, 369 mSDsluCounter, 667 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 369 SdHoareTripleChecker+Valid, 809 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-23 13:06:25,511 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [369 Valid, 809 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-23 13:06:25,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2021-11-23 13:06:25,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 200. [2021-11-23 13:06:25,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 167 states have (on average 1.3952095808383234) internal successors, (233), 199 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) [2021-11-23 13:06:25,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 233 transitions. [2021-11-23 13:06:25,517 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 233 transitions. Word has length 30 [2021-11-23 13:06:25,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:06:25,517 INFO L470 AbstractCegarLoop]: Abstraction has 200 states and 233 transitions. [2021-11-23 13:06:25,517 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:25,517 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 233 transitions. [2021-11-23 13:06:25,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-23 13:06:25,518 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:06:25,518 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-23 13:06:25,518 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-23 13:06:25,519 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr52REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-23 13:06:25,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:06:25,519 INFO L85 PathProgramCache]: Analyzing trace with hash 2071508259, now seen corresponding path program 1 times [2021-11-23 13:06:25,519 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:06:25,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258098523] [2021-11-23 13:06:25,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:06:25,520 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:06:25,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:06:25,595 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:06:25,596 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:06:25,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258098523] [2021-11-23 13:06:25,596 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258098523] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 13:06:25,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [929790591] [2021-11-23 13:06:25,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:06:25,597 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:06:25,597 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca443a6-ab15-45f9-8254-9dfd371ce542/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:06:25,602 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca443a6-ab15-45f9-8254-9dfd371ce542/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:06:25,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca443a6-ab15-45f9-8254-9dfd371ce542/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 13:06:25,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:06:25,685 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-23 13:06:25,691 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:06:25,769 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 13:06:25,777 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 13:06:25,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:06:25,846 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-23 13:06:25,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:06:25,858 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-11-23 13:06:25,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:06:25,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:06:25,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:06:25,979 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 13:06:25,979 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2021-11-23 13:06:25,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:06:25,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:06:25,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:06:25,994 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-11-23 13:06:26,497 INFO L354 Elim1Store]: treesize reduction 22, result has 12.0 percent of original size [2021-11-23 13:06:26,497 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 63 treesize of output 50 [2021-11-23 13:06:26,518 INFO L354 Elim1Store]: treesize reduction 22, result has 12.0 percent of original size [2021-11-23 13:06:26,519 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 38 treesize of output 25 [2021-11-23 13:06:26,535 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:06:26,535 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:06:28,147 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 26 [2021-11-23 13:06:28,150 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 24 [2021-11-23 13:06:28,160 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 28 [2021-11-23 13:06:28,166 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 27 [2021-11-23 13:06:28,198 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:06:28,198 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [929790591] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 13:06:28,198 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 13:06:28,199 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 9, 8] total 15 [2021-11-23 13:06:28,200 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638178937] [2021-11-23 13:06:28,200 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 13:06:28,201 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-23 13:06:28,201 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:06:28,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-23 13:06:28,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=160, Unknown=1, NotChecked=0, Total=210 [2021-11-23 13:06:28,202 INFO L87 Difference]: Start difference. First operand 200 states and 233 transitions. Second operand has 15 states, 15 states have (on average 5.866666666666666) internal successors, (88), 15 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:28,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:06:28,954 INFO L93 Difference]: Finished difference Result 348 states and 379 transitions. [2021-11-23 13:06:28,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-23 13:06:28,955 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.866666666666666) internal successors, (88), 15 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-11-23 13:06:28,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:06:28,958 INFO L225 Difference]: With dead ends: 348 [2021-11-23 13:06:28,958 INFO L226 Difference]: Without dead ends: 348 [2021-11-23 13:06:28,958 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 58 SyntacticMatches, 3 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=149, Invalid=402, Unknown=1, NotChecked=0, Total=552 [2021-11-23 13:06:28,959 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 739 mSDsluCounter, 750 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 739 SdHoareTripleChecker+Valid, 857 SdHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 69 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-23 13:06:28,960 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [739 Valid, 857 Invalid, 513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 386 Invalid, 0 Unknown, 69 Unchecked, 0.5s Time] [2021-11-23 13:06:28,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2021-11-23 13:06:28,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 228. [2021-11-23 13:06:28,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 195 states have (on average 1.405128205128205) internal successors, (274), 227 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:28,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 274 transitions. [2021-11-23 13:06:28,968 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 274 transitions. Word has length 32 [2021-11-23 13:06:28,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:06:28,968 INFO L470 AbstractCegarLoop]: Abstraction has 228 states and 274 transitions. [2021-11-23 13:06:28,969 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.866666666666666) internal successors, (88), 15 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:28,969 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 274 transitions. [2021-11-23 13:06:28,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-23 13:06:28,970 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:06:28,970 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] [2021-11-23 13:06:29,013 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca443a6-ab15-45f9-8254-9dfd371ce542/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-23 13:06:29,184 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca443a6-ab15-45f9-8254-9dfd371ce542/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2021-11-23 13:06:29,185 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr55REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-23 13:06:29,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:06:29,185 INFO L85 PathProgramCache]: Analyzing trace with hash 1393921825, now seen corresponding path program 1 times [2021-11-23 13:06:29,185 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:06:29,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935989080] [2021-11-23 13:06:29,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:06:29,186 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:06:29,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:06:29,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:06:29,364 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:06:29,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935989080] [2021-11-23 13:06:29,364 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935989080] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:06:29,364 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:06:29,364 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-23 13:06:29,365 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389513806] [2021-11-23 13:06:29,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:06:29,365 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-23 13:06:29,365 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:06:29,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-23 13:06:29,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-11-23 13:06:29,366 INFO L87 Difference]: Start difference. First operand 228 states and 274 transitions. Second operand has 11 states, 10 states have (on average 3.5) internal successors, (35), 11 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:30,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:06:30,035 INFO L93 Difference]: Finished difference Result 334 states and 372 transitions. [2021-11-23 13:06:30,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-23 13:06:30,035 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.5) internal successors, (35), 11 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2021-11-23 13:06:30,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:06:30,038 INFO L225 Difference]: With dead ends: 334 [2021-11-23 13:06:30,038 INFO L226 Difference]: Without dead ends: 334 [2021-11-23 13:06:30,038 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=100, Invalid=362, Unknown=0, NotChecked=0, Total=462 [2021-11-23 13:06:30,039 INFO L933 BasicCegarLoop]: 132 mSDtfsCounter, 387 mSDsluCounter, 861 mSDsCounter, 0 mSdLazyCounter, 761 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 387 SdHoareTripleChecker+Valid, 993 SdHoareTripleChecker+Invalid, 787 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-23 13:06:30,042 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [387 Valid, 993 Invalid, 787 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 761 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-23 13:06:30,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2021-11-23 13:06:30,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 229. [2021-11-23 13:06:30,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 198 states have (on average 1.3737373737373737) internal successors, (272), 228 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) [2021-11-23 13:06:30,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 272 transitions. [2021-11-23 13:06:30,050 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 272 transitions. Word has length 35 [2021-11-23 13:06:30,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:06:30,050 INFO L470 AbstractCegarLoop]: Abstraction has 229 states and 272 transitions. [2021-11-23 13:06:30,051 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.5) internal successors, (35), 11 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:30,051 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 272 transitions. [2021-11-23 13:06:30,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-23 13:06:30,052 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:06:30,052 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] [2021-11-23 13:06:30,052 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-23 13:06:30,053 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr56REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-23 13:06:30,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:06:30,053 INFO L85 PathProgramCache]: Analyzing trace with hash 1393921826, now seen corresponding path program 1 times [2021-11-23 13:06:30,054 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:06:30,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032584651] [2021-11-23 13:06:30,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:06:30,054 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:06:30,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:06:30,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:06:30,316 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:06:30,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032584651] [2021-11-23 13:06:30,317 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032584651] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:06:30,317 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:06:30,317 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-23 13:06:30,317 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608399452] [2021-11-23 13:06:30,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:06:30,317 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-23 13:06:30,318 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:06:30,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-23 13:06:30,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-11-23 13:06:30,318 INFO L87 Difference]: Start difference. First operand 229 states and 272 transitions. Second operand has 12 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 12 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:31,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:06:31,161 INFO L93 Difference]: Finished difference Result 408 states and 438 transitions. [2021-11-23 13:06:31,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-23 13:06:31,162 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 12 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2021-11-23 13:06:31,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:06:31,164 INFO L225 Difference]: With dead ends: 408 [2021-11-23 13:06:31,164 INFO L226 Difference]: Without dead ends: 408 [2021-11-23 13:06:31,165 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=135, Invalid=465, Unknown=0, NotChecked=0, Total=600 [2021-11-23 13:06:31,165 INFO L933 BasicCegarLoop]: 132 mSDtfsCounter, 619 mSDsluCounter, 877 mSDsCounter, 0 mSdLazyCounter, 841 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 619 SdHoareTripleChecker+Valid, 1009 SdHoareTripleChecker+Invalid, 874 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 841 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-23 13:06:31,166 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [619 Valid, 1009 Invalid, 874 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 841 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-23 13:06:31,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2021-11-23 13:06:31,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 235. [2021-11-23 13:06:31,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 204 states have (on average 1.3676470588235294) internal successors, (279), 234 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:31,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 279 transitions. [2021-11-23 13:06:31,173 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 279 transitions. Word has length 35 [2021-11-23 13:06:31,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:06:31,173 INFO L470 AbstractCegarLoop]: Abstraction has 235 states and 279 transitions. [2021-11-23 13:06:31,173 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 12 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:31,173 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 279 transitions. [2021-11-23 13:06:31,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-23 13:06:31,174 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:06:31,174 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] [2021-11-23 13:06:31,174 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-11-23 13:06:31,174 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-23 13:06:31,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:06:31,175 INFO L85 PathProgramCache]: Analyzing trace with hash -470914463, now seen corresponding path program 1 times [2021-11-23 13:06:31,175 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:06:31,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122707638] [2021-11-23 13:06:31,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:06:31,176 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:06:31,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:06:31,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:06:31,419 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:06:31,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122707638] [2021-11-23 13:06:31,420 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122707638] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:06:31,420 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:06:31,420 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-23 13:06:31,420 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674473264] [2021-11-23 13:06:31,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:06:31,421 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-23 13:06:31,421 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:06:31,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-23 13:06:31,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-11-23 13:06:31,422 INFO L87 Difference]: Start difference. First operand 235 states and 279 transitions. Second operand has 13 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 13 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:32,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:06:32,460 INFO L93 Difference]: Finished difference Result 403 states and 433 transitions. [2021-11-23 13:06:32,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-23 13:06:32,461 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 13 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-11-23 13:06:32,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:06:32,463 INFO L225 Difference]: With dead ends: 403 [2021-11-23 13:06:32,463 INFO L226 Difference]: Without dead ends: 403 [2021-11-23 13:06:32,464 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=174, Invalid=638, Unknown=0, NotChecked=0, Total=812 [2021-11-23 13:06:32,464 INFO L933 BasicCegarLoop]: 138 mSDtfsCounter, 681 mSDsluCounter, 1125 mSDsCounter, 0 mSdLazyCounter, 841 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 681 SdHoareTripleChecker+Valid, 1263 SdHoareTripleChecker+Invalid, 880 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 841 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-23 13:06:32,465 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [681 Valid, 1263 Invalid, 880 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 841 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-23 13:06:32,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2021-11-23 13:06:32,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 235. [2021-11-23 13:06:32,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 204 states have (on average 1.3627450980392157) internal successors, (278), 234 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:32,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 278 transitions. [2021-11-23 13:06:32,472 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 278 transitions. Word has length 37 [2021-11-23 13:06:32,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:06:32,472 INFO L470 AbstractCegarLoop]: Abstraction has 235 states and 278 transitions. [2021-11-23 13:06:32,473 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.8461538461538463) internal successors, (37), 13 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:32,473 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 278 transitions. [2021-11-23 13:06:32,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-23 13:06:32,473 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:06:32,474 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] [2021-11-23 13:06:32,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-11-23 13:06:32,474 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr40REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-23 13:06:32,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:06:32,474 INFO L85 PathProgramCache]: Analyzing trace with hash -2012362969, now seen corresponding path program 1 times [2021-11-23 13:06:32,475 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:06:32,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291067563] [2021-11-23 13:06:32,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:06:32,475 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:06:32,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:06:32,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:06:32,511 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:06:32,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291067563] [2021-11-23 13:06:32,511 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291067563] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:06:32,512 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:06:32,512 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 13:06:32,512 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156092454] [2021-11-23 13:06:32,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:06:32,512 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 13:06:32,513 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:06:32,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 13:06:32,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 13:06:32,514 INFO L87 Difference]: Start difference. First operand 235 states and 278 transitions. Second operand has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:32,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:06:32,655 INFO L93 Difference]: Finished difference Result 234 states and 277 transitions. [2021-11-23 13:06:32,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 13:06:32,656 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-11-23 13:06:32,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:06:32,658 INFO L225 Difference]: With dead ends: 234 [2021-11-23 13:06:32,658 INFO L226 Difference]: Without dead ends: 234 [2021-11-23 13:06:32,658 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-23 13:06:32,659 INFO L933 BasicCegarLoop]: 144 mSDtfsCounter, 4 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:06:32,659 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 418 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:06:32,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2021-11-23 13:06:32,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2021-11-23 13:06:32,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 204 states have (on average 1.357843137254902) internal successors, (277), 233 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:32,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 277 transitions. [2021-11-23 13:06:32,664 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 277 transitions. Word has length 37 [2021-11-23 13:06:32,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:06:32,664 INFO L470 AbstractCegarLoop]: Abstraction has 234 states and 277 transitions. [2021-11-23 13:06:32,664 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:32,665 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 277 transitions. [2021-11-23 13:06:32,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-23 13:06:32,665 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:06:32,665 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] [2021-11-23 13:06:32,665 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-11-23 13:06:32,665 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr41REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-23 13:06:32,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:06:32,666 INFO L85 PathProgramCache]: Analyzing trace with hash -2012362968, now seen corresponding path program 1 times [2021-11-23 13:06:32,666 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:06:32,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614486816] [2021-11-23 13:06:32,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:06:32,666 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:06:32,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:06:32,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:06:32,728 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:06:32,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614486816] [2021-11-23 13:06:32,728 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614486816] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:06:32,728 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:06:32,729 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 13:06:32,729 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737813327] [2021-11-23 13:06:32,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:06:32,729 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 13:06:32,729 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:06:32,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 13:06:32,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 13:06:32,730 INFO L87 Difference]: Start difference. First operand 234 states and 277 transitions. Second operand has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:32,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:06:32,884 INFO L93 Difference]: Finished difference Result 233 states and 276 transitions. [2021-11-23 13:06:32,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 13:06:32,884 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-11-23 13:06:32,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:06:32,886 INFO L225 Difference]: With dead ends: 233 [2021-11-23 13:06:32,886 INFO L226 Difference]: Without dead ends: 233 [2021-11-23 13:06:32,886 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-23 13:06:32,888 INFO L933 BasicCegarLoop]: 144 mSDtfsCounter, 2 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:06:32,888 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 412 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:06:32,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2021-11-23 13:06:32,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 233. [2021-11-23 13:06:32,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 204 states have (on average 1.3529411764705883) internal successors, (276), 232 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:32,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 276 transitions. [2021-11-23 13:06:32,895 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 276 transitions. Word has length 37 [2021-11-23 13:06:32,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:06:32,895 INFO L470 AbstractCegarLoop]: Abstraction has 233 states and 276 transitions. [2021-11-23 13:06:32,895 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:32,895 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 276 transitions. [2021-11-23 13:06:32,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-23 13:06:32,896 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:06:32,896 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] [2021-11-23 13:06:32,896 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-11-23 13:06:32,897 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-23 13:06:32,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:06:32,897 INFO L85 PathProgramCache]: Analyzing trace with hash 1939172976, now seen corresponding path program 1 times [2021-11-23 13:06:32,897 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:06:32,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464574753] [2021-11-23 13:06:32,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:06:32,898 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:06:32,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:06:32,973 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 13:06:32,973 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:06:32,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464574753] [2021-11-23 13:06:32,973 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464574753] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:06:32,973 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:06:32,973 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-23 13:06:32,974 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799643206] [2021-11-23 13:06:32,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:06:32,974 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-23 13:06:32,974 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:06:32,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-23 13:06:32,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-23 13:06:32,974 INFO L87 Difference]: Start difference. First operand 233 states and 276 transitions. Second operand has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:33,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:06:33,224 INFO L93 Difference]: Finished difference Result 256 states and 299 transitions. [2021-11-23 13:06:33,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-23 13:06:33,224 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-11-23 13:06:33,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:06:33,226 INFO L225 Difference]: With dead ends: 256 [2021-11-23 13:06:33,226 INFO L226 Difference]: Without dead ends: 256 [2021-11-23 13:06:33,227 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2021-11-23 13:06:33,227 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 52 mSDsluCounter, 499 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 628 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 13:06:33,227 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 628 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 13:06:33,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2021-11-23 13:06:33,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 242. [2021-11-23 13:06:33,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 213 states have (on average 1.3380281690140845) internal successors, (285), 241 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:33,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 285 transitions. [2021-11-23 13:06:33,235 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 285 transitions. Word has length 37 [2021-11-23 13:06:33,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:06:33,235 INFO L470 AbstractCegarLoop]: Abstraction has 242 states and 285 transitions. [2021-11-23 13:06:33,235 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:33,235 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 285 transitions. [2021-11-23 13:06:33,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-23 13:06:33,236 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:06:33,236 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] [2021-11-23 13:06:33,236 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-11-23 13:06:33,237 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-23 13:06:33,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:06:33,237 INFO L85 PathProgramCache]: Analyzing trace with hash -1413983143, now seen corresponding path program 1 times [2021-11-23 13:06:33,238 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:06:33,238 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710491555] [2021-11-23 13:06:33,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:06:33,238 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:06:33,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:06:33,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:06:33,270 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:06:33,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710491555] [2021-11-23 13:06:33,270 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710491555] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:06:33,270 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:06:33,270 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 13:06:33,271 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814995162] [2021-11-23 13:06:33,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:06:33,271 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 13:06:33,271 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:06:33,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 13:06:33,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:06:33,273 INFO L87 Difference]: Start difference. First operand 242 states and 285 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:33,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:06:33,281 INFO L93 Difference]: Finished difference Result 243 states and 286 transitions. [2021-11-23 13:06:33,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 13:06:33,282 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2021-11-23 13:06:33,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:06:33,283 INFO L225 Difference]: With dead ends: 243 [2021-11-23 13:06:33,283 INFO L226 Difference]: Without dead ends: 243 [2021-11-23 13:06:33,284 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 [2021-11-23 13:06:33,285 INFO L933 BasicCegarLoop]: 146 mSDtfsCounter, 0 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 13:06:33,285 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 286 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 13:06:33,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2021-11-23 13:06:33,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 243. [2021-11-23 13:06:33,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 214 states have (on average 1.3364485981308412) internal successors, (286), 242 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:33,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 286 transitions. [2021-11-23 13:06:33,292 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 286 transitions. Word has length 39 [2021-11-23 13:06:33,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:06:33,292 INFO L470 AbstractCegarLoop]: Abstraction has 243 states and 286 transitions. [2021-11-23 13:06:33,292 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:33,293 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 286 transitions. [2021-11-23 13:06:33,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-23 13:06:33,293 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:06:33,293 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] [2021-11-23 13:06:33,294 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-11-23 13:06:33,294 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr83ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-23 13:06:33,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:06:33,294 INFO L85 PathProgramCache]: Analyzing trace with hash -404838824, now seen corresponding path program 1 times [2021-11-23 13:06:33,295 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:06:33,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118904401] [2021-11-23 13:06:33,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:06:33,295 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:06:33,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:06:33,323 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 13:06:33,324 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:06:33,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118904401] [2021-11-23 13:06:33,324 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118904401] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:06:33,324 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:06:33,325 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 13:06:33,325 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750092832] [2021-11-23 13:06:33,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:06:33,325 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 13:06:33,326 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:06:33,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 13:06:33,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:06:33,327 INFO L87 Difference]: Start difference. First operand 243 states and 286 transitions. Second operand has 3 states, 2 states have (on average 19.5) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:33,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:06:33,375 INFO L93 Difference]: Finished difference Result 256 states and 290 transitions. [2021-11-23 13:06:33,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 13:06:33,376 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 19.5) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2021-11-23 13:06:33,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:06:33,377 INFO L225 Difference]: With dead ends: 256 [2021-11-23 13:06:33,377 INFO L226 Difference]: Without dead ends: 256 [2021-11-23 13:06:33,378 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:06:33,383 INFO L933 BasicCegarLoop]: 124 mSDtfsCounter, 99 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 13:06:33,384 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 152 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 13:06:33,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2021-11-23 13:06:33,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 244. [2021-11-23 13:06:33,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 215 states have (on average 1.3348837209302327) internal successors, (287), 243 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:33,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 287 transitions. [2021-11-23 13:06:33,409 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 287 transitions. Word has length 39 [2021-11-23 13:06:33,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:06:33,409 INFO L470 AbstractCegarLoop]: Abstraction has 244 states and 287 transitions. [2021-11-23 13:06:33,410 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 19.5) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:33,410 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 287 transitions. [2021-11-23 13:06:33,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-23 13:06:33,411 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:06:33,411 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] [2021-11-23 13:06:33,411 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-11-23 13:06:33,411 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr60ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-23 13:06:33,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:06:33,412 INFO L85 PathProgramCache]: Analyzing trace with hash -1645380794, now seen corresponding path program 1 times [2021-11-23 13:06:33,412 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:06:33,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386923077] [2021-11-23 13:06:33,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:06:33,413 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:06:33,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:06:33,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:06:33,744 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:06:33,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386923077] [2021-11-23 13:06:33,744 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386923077] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:06:33,744 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:06:33,744 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-11-23 13:06:33,745 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868440223] [2021-11-23 13:06:33,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:06:33,745 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-23 13:06:33,745 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:06:33,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-23 13:06:33,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2021-11-23 13:06:33,746 INFO L87 Difference]: Start difference. First operand 244 states and 287 transitions. Second operand has 14 states, 14 states have (on average 2.857142857142857) internal successors, (40), 14 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:34,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:06:34,697 INFO L93 Difference]: Finished difference Result 409 states and 439 transitions. [2021-11-23 13:06:34,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-23 13:06:34,697 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.857142857142857) internal successors, (40), 14 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2021-11-23 13:06:34,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:06:34,700 INFO L225 Difference]: With dead ends: 409 [2021-11-23 13:06:34,700 INFO L226 Difference]: Without dead ends: 409 [2021-11-23 13:06:34,700 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=179, Invalid=633, Unknown=0, NotChecked=0, Total=812 [2021-11-23 13:06:34,701 INFO L933 BasicCegarLoop]: 119 mSDtfsCounter, 591 mSDsluCounter, 1034 mSDsCounter, 0 mSdLazyCounter, 768 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 591 SdHoareTripleChecker+Valid, 1153 SdHoareTripleChecker+Invalid, 806 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 768 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-23 13:06:34,701 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [591 Valid, 1153 Invalid, 806 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 768 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-23 13:06:34,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2021-11-23 13:06:34,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 244. [2021-11-23 13:06:34,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 215 states have (on average 1.330232558139535) internal successors, (286), 243 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:34,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 286 transitions. [2021-11-23 13:06:34,709 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 286 transitions. Word has length 40 [2021-11-23 13:06:34,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:06:34,709 INFO L470 AbstractCegarLoop]: Abstraction has 244 states and 286 transitions. [2021-11-23 13:06:34,710 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.857142857142857) internal successors, (40), 14 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:34,710 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 286 transitions. [2021-11-23 13:06:34,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-23 13:06:34,710 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:06:34,711 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] [2021-11-23 13:06:34,711 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-11-23 13:06:34,711 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr44REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-23 13:06:34,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:06:34,712 INFO L85 PathProgramCache]: Analyzing trace with hash -1151553849, now seen corresponding path program 1 times [2021-11-23 13:06:34,712 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:06:34,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658201002] [2021-11-23 13:06:34,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:06:34,712 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:06:34,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:06:34,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:06:34,915 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:06:34,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658201002] [2021-11-23 13:06:34,916 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658201002] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:06:34,916 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:06:34,916 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-23 13:06:34,916 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230969607] [2021-11-23 13:06:34,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:06:34,917 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-23 13:06:34,917 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:06:34,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-23 13:06:34,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2021-11-23 13:06:34,917 INFO L87 Difference]: Start difference. First operand 244 states and 286 transitions. Second operand has 14 states, 13 states have (on average 3.076923076923077) internal successors, (40), 14 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:35,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:06:35,438 INFO L93 Difference]: Finished difference Result 243 states and 285 transitions. [2021-11-23 13:06:35,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-23 13:06:35,439 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.076923076923077) internal successors, (40), 14 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2021-11-23 13:06:35,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:06:35,440 INFO L225 Difference]: With dead ends: 243 [2021-11-23 13:06:35,440 INFO L226 Difference]: Without dead ends: 243 [2021-11-23 13:06:35,441 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=122, Invalid=528, Unknown=0, NotChecked=0, Total=650 [2021-11-23 13:06:35,445 INFO L933 BasicCegarLoop]: 89 mSDtfsCounter, 201 mSDsluCounter, 608 mSDsCounter, 0 mSdLazyCounter, 662 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 697 SdHoareTripleChecker+Invalid, 688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 662 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-23 13:06:35,446 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [201 Valid, 697 Invalid, 688 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 662 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-23 13:06:35,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2021-11-23 13:06:35,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 243. [2021-11-23 13:06:35,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 215 states have (on average 1.3255813953488371) internal successors, (285), 242 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:35,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 285 transitions. [2021-11-23 13:06:35,453 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 285 transitions. Word has length 40 [2021-11-23 13:06:35,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:06:35,454 INFO L470 AbstractCegarLoop]: Abstraction has 243 states and 285 transitions. [2021-11-23 13:06:35,454 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.076923076923077) internal successors, (40), 14 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:35,454 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 285 transitions. [2021-11-23 13:06:35,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-23 13:06:35,455 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:06:35,455 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] [2021-11-23 13:06:35,455 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-11-23 13:06:35,455 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr45REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-23 13:06:35,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:06:35,456 INFO L85 PathProgramCache]: Analyzing trace with hash -1151553848, now seen corresponding path program 1 times [2021-11-23 13:06:35,456 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:06:35,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688291431] [2021-11-23 13:06:35,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:06:35,457 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:06:35,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:06:35,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:06:35,666 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:06:35,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688291431] [2021-11-23 13:06:35,667 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688291431] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:06:35,667 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:06:35,667 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-23 13:06:35,667 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199810011] [2021-11-23 13:06:35,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:06:35,668 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-23 13:06:35,668 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:06:35,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-23 13:06:35,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2021-11-23 13:06:35,668 INFO L87 Difference]: Start difference. First operand 243 states and 285 transitions. Second operand has 14 states, 13 states have (on average 3.076923076923077) internal successors, (40), 14 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:36,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:06:36,106 INFO L93 Difference]: Finished difference Result 242 states and 284 transitions. [2021-11-23 13:06:36,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-23 13:06:36,107 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.076923076923077) internal successors, (40), 14 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2021-11-23 13:06:36,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:06:36,110 INFO L225 Difference]: With dead ends: 242 [2021-11-23 13:06:36,111 INFO L226 Difference]: Without dead ends: 242 [2021-11-23 13:06:36,111 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=122, Invalid=528, Unknown=0, NotChecked=0, Total=650 [2021-11-23 13:06:36,112 INFO L933 BasicCegarLoop]: 89 mSDtfsCounter, 198 mSDsluCounter, 462 mSDsCounter, 0 mSdLazyCounter, 523 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 13:06:36,112 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [198 Valid, 551 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 523 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 13:06:36,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2021-11-23 13:06:36,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2021-11-23 13:06:36,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 215 states have (on average 1.3209302325581396) internal successors, (284), 241 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:36,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 284 transitions. [2021-11-23 13:06:36,118 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 284 transitions. Word has length 40 [2021-11-23 13:06:36,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:06:36,119 INFO L470 AbstractCegarLoop]: Abstraction has 242 states and 284 transitions. [2021-11-23 13:06:36,119 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.076923076923077) internal successors, (40), 14 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:36,119 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 284 transitions. [2021-11-23 13:06:36,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-23 13:06:36,120 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:06:36,120 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] [2021-11-23 13:06:36,120 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-11-23 13:06:36,121 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-23 13:06:36,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:06:36,121 INFO L85 PathProgramCache]: Analyzing trace with hash -1626494914, now seen corresponding path program 1 times [2021-11-23 13:06:36,121 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:06:36,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263755388] [2021-11-23 13:06:36,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:06:36,122 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:06:36,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:06:36,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:06:36,186 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:06:36,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263755388] [2021-11-23 13:06:36,187 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263755388] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:06:36,187 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:06:36,187 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-23 13:06:36,187 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647635334] [2021-11-23 13:06:36,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:06:36,188 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-23 13:06:36,188 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:06:36,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-23 13:06:36,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-23 13:06:36,189 INFO L87 Difference]: Start difference. First operand 242 states and 284 transitions. Second operand has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:36,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:06:36,403 INFO L93 Difference]: Finished difference Result 252 states and 296 transitions. [2021-11-23 13:06:36,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-23 13:06:36,404 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2021-11-23 13:06:36,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:06:36,405 INFO L225 Difference]: With dead ends: 252 [2021-11-23 13:06:36,405 INFO L226 Difference]: Without dead ends: 252 [2021-11-23 13:06:36,405 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=98, Unknown=0, NotChecked=0, Total=156 [2021-11-23 13:06:36,406 INFO L933 BasicCegarLoop]: 143 mSDtfsCounter, 22 mSDsluCounter, 517 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 660 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:06:36,406 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 660 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:06:36,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2021-11-23 13:06:36,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 239. [2021-11-23 13:06:36,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 213 states have (on average 1.3192488262910798) internal successors, (281), 238 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:36,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 281 transitions. [2021-11-23 13:06:36,412 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 281 transitions. Word has length 41 [2021-11-23 13:06:36,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:06:36,412 INFO L470 AbstractCegarLoop]: Abstraction has 239 states and 281 transitions. [2021-11-23 13:06:36,413 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:36,413 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 281 transitions. [2021-11-23 13:06:36,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-23 13:06:36,413 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:06:36,414 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] [2021-11-23 13:06:36,414 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-11-23 13:06:36,414 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-23 13:06:36,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:06:36,414 INFO L85 PathProgramCache]: Analyzing trace with hash 1357177023, now seen corresponding path program 1 times [2021-11-23 13:06:36,415 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:06:36,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407364409] [2021-11-23 13:06:36,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:06:36,415 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:06:36,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:06:36,440 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 13:06:36,440 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:06:36,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407364409] [2021-11-23 13:06:36,440 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407364409] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:06:36,441 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:06:36,441 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 13:06:36,441 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607766767] [2021-11-23 13:06:36,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:06:36,441 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 13:06:36,442 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:06:36,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 13:06:36,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:06:36,442 INFO L87 Difference]: Start difference. First operand 239 states and 281 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:36,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:06:36,492 INFO L93 Difference]: Finished difference Result 249 states and 290 transitions. [2021-11-23 13:06:36,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 13:06:36,492 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2021-11-23 13:06:36,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:06:36,494 INFO L225 Difference]: With dead ends: 249 [2021-11-23 13:06:36,494 INFO L226 Difference]: Without dead ends: 249 [2021-11-23 13:06:36,494 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 [2021-11-23 13:06:36,495 INFO L933 BasicCegarLoop]: 127 mSDtfsCounter, 91 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 13:06:36,495 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 170 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 13:06:36,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2021-11-23 13:06:36,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 237. [2021-11-23 13:06:36,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 212 states have (on average 1.3113207547169812) internal successors, (278), 236 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:36,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 278 transitions. [2021-11-23 13:06:36,501 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 278 transitions. Word has length 42 [2021-11-23 13:06:36,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:06:36,502 INFO L470 AbstractCegarLoop]: Abstraction has 237 states and 278 transitions. [2021-11-23 13:06:36,502 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:36,502 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 278 transitions. [2021-11-23 13:06:36,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-23 13:06:36,503 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:06:36,503 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-23 13:06:36,503 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-11-23 13:06:36,503 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr66REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-23 13:06:36,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:06:36,504 INFO L85 PathProgramCache]: Analyzing trace with hash -284774687, now seen corresponding path program 1 times [2021-11-23 13:06:36,504 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:06:36,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746773212] [2021-11-23 13:06:36,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:06:36,504 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:06:36,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:06:36,620 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:06:36,621 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:06:36,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746773212] [2021-11-23 13:06:36,621 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746773212] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 13:06:36,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [899453686] [2021-11-23 13:06:36,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:06:36,622 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:06:36,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca443a6-ab15-45f9-8254-9dfd371ce542/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:06:36,624 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca443a6-ab15-45f9-8254-9dfd371ce542/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:06:36,625 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca443a6-ab15-45f9-8254-9dfd371ce542/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-23 13:06:36,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:06:36,687 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-23 13:06:36,690 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:06:36,699 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 13:06:36,704 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 13:06:36,720 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 21 [2021-11-23 13:06:36,736 INFO L354 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2021-11-23 13:06:36,736 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 33 [2021-11-23 13:06:36,746 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 21 [2021-11-23 13:06:36,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:06:36,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:06:36,753 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 20 [2021-11-23 13:06:36,854 INFO L354 Elim1Store]: treesize reduction 56, result has 23.3 percent of original size [2021-11-23 13:06:36,854 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 30 treesize of output 32 [2021-11-23 13:06:36,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:06:36,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:06:36,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 13:06:36,873 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-11-23 13:06:37,402 INFO L354 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2021-11-23 13:06:37,402 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 65 treesize of output 45 [2021-11-23 13:06:37,408 INFO L354 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2021-11-23 13:06:37,408 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 36 treesize of output 16 [2021-11-23 13:06:37,435 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 13:06:37,435 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:06:37,665 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 13:06:37,666 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [899453686] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 13:06:37,666 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 13:06:37,666 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 6] total 9 [2021-11-23 13:06:37,666 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681586513] [2021-11-23 13:06:37,666 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 13:06:37,667 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-23 13:06:37,667 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:06:37,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-23 13:06:37,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-23 13:06:37,668 INFO L87 Difference]: Start difference. First operand 237 states and 278 transitions. Second operand has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 9 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) [2021-11-23 13:06:38,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:06:38,043 INFO L93 Difference]: Finished difference Result 319 states and 354 transitions. [2021-11-23 13:06:38,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-23 13:06:38,046 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 9 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 42 [2021-11-23 13:06:38,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:06:38,048 INFO L225 Difference]: With dead ends: 319 [2021-11-23 13:06:38,048 INFO L226 Difference]: Without dead ends: 319 [2021-11-23 13:06:38,048 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 79 SyntacticMatches, 5 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2021-11-23 13:06:38,049 INFO L933 BasicCegarLoop]: 109 mSDtfsCounter, 221 mSDsluCounter, 455 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 564 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 13:06:38,049 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [221 Valid, 564 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 13:06:38,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2021-11-23 13:06:38,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 259. [2021-11-23 13:06:38,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 234 states have (on average 1.3205128205128205) internal successors, (309), 258 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:38,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 309 transitions. [2021-11-23 13:06:38,055 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 309 transitions. Word has length 42 [2021-11-23 13:06:38,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:06:38,056 INFO L470 AbstractCegarLoop]: Abstraction has 259 states and 309 transitions. [2021-11-23 13:06:38,056 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 9 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) [2021-11-23 13:06:38,056 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 309 transitions. [2021-11-23 13:06:38,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-23 13:06:38,057 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:06:38,057 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] [2021-11-23 13:06:38,094 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca443a6-ab15-45f9-8254-9dfd371ce542/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-23 13:06:38,272 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca443a6-ab15-45f9-8254-9dfd371ce542/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:06:38,273 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr69REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-23 13:06:38,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:06:38,273 INFO L85 PathProgramCache]: Analyzing trace with hash -877180804, now seen corresponding path program 1 times [2021-11-23 13:06:38,273 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:06:38,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566049320] [2021-11-23 13:06:38,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:06:38,274 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:06:38,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:06:38,366 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 13:06:38,366 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:06:38,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566049320] [2021-11-23 13:06:38,367 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566049320] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:06:38,367 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:06:38,367 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-23 13:06:38,367 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221402681] [2021-11-23 13:06:38,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:06:38,368 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-23 13:06:38,368 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:06:38,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-23 13:06:38,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-23 13:06:38,369 INFO L87 Difference]: Start difference. First operand 259 states and 309 transitions. Second operand has 10 states, 9 states have (on average 4.777777777777778) internal successors, (43), 10 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:38,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:06:38,755 INFO L93 Difference]: Finished difference Result 306 states and 343 transitions. [2021-11-23 13:06:38,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-23 13:06:38,755 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.777777777777778) internal successors, (43), 10 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2021-11-23 13:06:38,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:06:38,757 INFO L225 Difference]: With dead ends: 306 [2021-11-23 13:06:38,757 INFO L226 Difference]: Without dead ends: 306 [2021-11-23 13:06:38,757 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2021-11-23 13:06:38,758 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 358 mSDsluCounter, 442 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 358 SdHoareTripleChecker+Valid, 540 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-23 13:06:38,758 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [358 Valid, 540 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-23 13:06:38,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2021-11-23 13:06:38,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 259. [2021-11-23 13:06:38,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 234 states have (on average 1.3162393162393162) internal successors, (308), 258 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:38,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 308 transitions. [2021-11-23 13:06:38,764 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 308 transitions. Word has length 43 [2021-11-23 13:06:38,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:06:38,765 INFO L470 AbstractCegarLoop]: Abstraction has 259 states and 308 transitions. [2021-11-23 13:06:38,765 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.777777777777778) internal successors, (43), 10 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:38,765 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 308 transitions. [2021-11-23 13:06:38,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-23 13:06:38,765 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:06:38,766 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] [2021-11-23 13:06:38,766 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-11-23 13:06:38,766 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-23 13:06:38,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:06:38,766 INFO L85 PathProgramCache]: Analyzing trace with hash -877180803, now seen corresponding path program 1 times [2021-11-23 13:06:38,766 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:06:38,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408881860] [2021-11-23 13:06:38,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:06:38,767 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:06:38,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:06:38,918 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 13:06:38,918 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:06:38,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408881860] [2021-11-23 13:06:38,919 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408881860] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:06:38,919 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:06:38,919 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-23 13:06:38,919 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570062921] [2021-11-23 13:06:38,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:06:38,920 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-23 13:06:38,920 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:06:38,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-23 13:06:38,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-23 13:06:38,920 INFO L87 Difference]: Start difference. First operand 259 states and 308 transitions. Second operand has 10 states, 9 states have (on average 4.777777777777778) internal successors, (43), 10 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:39,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:06:39,340 INFO L93 Difference]: Finished difference Result 306 states and 342 transitions. [2021-11-23 13:06:39,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-23 13:06:39,341 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.777777777777778) internal successors, (43), 10 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2021-11-23 13:06:39,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:06:39,342 INFO L225 Difference]: With dead ends: 306 [2021-11-23 13:06:39,343 INFO L226 Difference]: Without dead ends: 306 [2021-11-23 13:06:39,343 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2021-11-23 13:06:39,343 INFO L933 BasicCegarLoop]: 101 mSDtfsCounter, 302 mSDsluCounter, 425 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 526 SdHoareTripleChecker+Invalid, 494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-23 13:06:39,344 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [302 Valid, 526 Invalid, 494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 470 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-23 13:06:39,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2021-11-23 13:06:39,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 259. [2021-11-23 13:06:39,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 234 states have (on average 1.3034188034188035) internal successors, (305), 258 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:39,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 305 transitions. [2021-11-23 13:06:39,350 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 305 transitions. Word has length 43 [2021-11-23 13:06:39,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:06:39,350 INFO L470 AbstractCegarLoop]: Abstraction has 259 states and 305 transitions. [2021-11-23 13:06:39,351 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.777777777777778) internal successors, (43), 10 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:39,351 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 305 transitions. [2021-11-23 13:06:39,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-23 13:06:39,351 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:06:39,352 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] [2021-11-23 13:06:39,352 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-11-23 13:06:39,352 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr85ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-23 13:06:39,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:06:39,353 INFO L85 PathProgramCache]: Analyzing trace with hash -238079422, now seen corresponding path program 1 times [2021-11-23 13:06:39,353 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:06:39,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058447927] [2021-11-23 13:06:39,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:06:39,353 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:06:39,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:06:39,400 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 13:06:39,400 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:06:39,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058447927] [2021-11-23 13:06:39,400 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058447927] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 13:06:39,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [36587690] [2021-11-23 13:06:39,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:06:39,401 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:06:39,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca443a6-ab15-45f9-8254-9dfd371ce542/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:06:39,408 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca443a6-ab15-45f9-8254-9dfd371ce542/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:06:39,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca443a6-ab15-45f9-8254-9dfd371ce542/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-23 13:06:39,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:06:39,474 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-23 13:06:39,477 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:06:39,739 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 13:06:39,739 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:06:39,987 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 13:06:39,987 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [36587690] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 13:06:39,988 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 13:06:39,988 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2021-11-23 13:06:39,988 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328837000] [2021-11-23 13:06:39,989 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 13:06:39,989 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 13:06:39,989 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:06:39,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 13:06:39,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-23 13:06:39,991 INFO L87 Difference]: Start difference. First operand 259 states and 305 transitions. Second operand has 6 states, 5 states have (on average 17.0) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:40,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:06:40,121 INFO L93 Difference]: Finished difference Result 290 states and 336 transitions. [2021-11-23 13:06:40,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 13:06:40,122 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.0) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 43 [2021-11-23 13:06:40,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:06:40,124 INFO L225 Difference]: With dead ends: 290 [2021-11-23 13:06:40,124 INFO L226 Difference]: Without dead ends: 266 [2021-11-23 13:06:40,124 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 82 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-23 13:06:40,125 INFO L933 BasicCegarLoop]: 124 mSDtfsCounter, 0 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:06:40,125 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 378 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 168 Invalid, 0 Unknown, 2 Unchecked, 0.1s Time] [2021-11-23 13:06:40,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2021-11-23 13:06:40,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2021-11-23 13:06:40,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 241 states have (on average 1.2946058091286308) internal successors, (312), 265 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:40,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 312 transitions. [2021-11-23 13:06:40,135 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 312 transitions. Word has length 43 [2021-11-23 13:06:40,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:06:40,136 INFO L470 AbstractCegarLoop]: Abstraction has 266 states and 312 transitions. [2021-11-23 13:06:40,136 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.0) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:40,136 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 312 transitions. [2021-11-23 13:06:40,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-23 13:06:40,137 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:06:40,137 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] [2021-11-23 13:06:40,178 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca443a6-ab15-45f9-8254-9dfd371ce542/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-23 13:06:40,360 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca443a6-ab15-45f9-8254-9dfd371ce542/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2021-11-23 13:06:40,361 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr71ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-23 13:06:40,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:06:40,361 INFO L85 PathProgramCache]: Analyzing trace with hash -1157151236, now seen corresponding path program 1 times [2021-11-23 13:06:40,361 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:06:40,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289134314] [2021-11-23 13:06:40,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:06:40,362 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:06:40,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:06:40,600 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:06:40,600 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:06:40,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289134314] [2021-11-23 13:06:40,600 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289134314] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:06:40,600 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:06:40,601 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-23 13:06:40,601 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401416979] [2021-11-23 13:06:40,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:06:40,601 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 13:06:40,601 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:06:40,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 13:06:40,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-23 13:06:40,602 INFO L87 Difference]: Start difference. First operand 266 states and 312 transitions. Second operand has 8 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:40,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:06:40,923 INFO L93 Difference]: Finished difference Result 291 states and 325 transitions. [2021-11-23 13:06:40,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-23 13:06:40,923 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2021-11-23 13:06:40,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:06:40,925 INFO L225 Difference]: With dead ends: 291 [2021-11-23 13:06:40,925 INFO L226 Difference]: Without dead ends: 291 [2021-11-23 13:06:40,925 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-11-23 13:06:40,925 INFO L933 BasicCegarLoop]: 136 mSDtfsCounter, 214 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-23 13:06:40,925 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [214 Valid, 464 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 366 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-23 13:06:40,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2021-11-23 13:06:40,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 265. [2021-11-23 13:06:40,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 240 states have (on average 1.2916666666666667) internal successors, (310), 264 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:40,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 310 transitions. [2021-11-23 13:06:40,932 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 310 transitions. Word has length 45 [2021-11-23 13:06:40,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:06:40,932 INFO L470 AbstractCegarLoop]: Abstraction has 265 states and 310 transitions. [2021-11-23 13:06:40,932 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:40,932 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 310 transitions. [2021-11-23 13:06:40,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-23 13:06:40,933 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:06:40,933 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] [2021-11-23 13:06:40,933 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-11-23 13:06:40,933 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-23 13:06:40,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:06:40,934 INFO L85 PathProgramCache]: Analyzing trace with hash 1529922318, now seen corresponding path program 1 times [2021-11-23 13:06:40,934 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:06:40,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622013905] [2021-11-23 13:06:40,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:06:40,935 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:06:40,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:06:40,959 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:06:40,960 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:06:40,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622013905] [2021-11-23 13:06:40,960 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622013905] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:06:40,960 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:06:40,960 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 13:06:40,960 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112993287] [2021-11-23 13:06:40,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:06:40,961 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 13:06:40,961 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:06:40,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 13:06:40,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:06:40,962 INFO L87 Difference]: Start difference. First operand 265 states and 310 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:40,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:06:40,973 INFO L93 Difference]: Finished difference Result 405 states and 481 transitions. [2021-11-23 13:06:40,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 13:06:40,974 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2021-11-23 13:06:40,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:06:40,976 INFO L225 Difference]: With dead ends: 405 [2021-11-23 13:06:40,976 INFO L226 Difference]: Without dead ends: 405 [2021-11-23 13:06:40,976 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 [2021-11-23 13:06:40,977 INFO L933 BasicCegarLoop]: 178 mSDtfsCounter, 56 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 13:06:40,977 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 313 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 13:06:40,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2021-11-23 13:06:40,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 302. [2021-11-23 13:06:40,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 277 states have (on average 1.3285198555956679) internal successors, (368), 301 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:40,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 368 transitions. [2021-11-23 13:06:40,985 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 368 transitions. Word has length 45 [2021-11-23 13:06:40,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:06:40,985 INFO L470 AbstractCegarLoop]: Abstraction has 302 states and 368 transitions. [2021-11-23 13:06:40,985 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:40,986 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 368 transitions. [2021-11-23 13:06:40,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-23 13:06:40,986 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:06:40,986 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-23 13:06:40,987 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-11-23 13:06:40,987 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr55REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-23 13:06:40,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:06:40,987 INFO L85 PathProgramCache]: Analyzing trace with hash 1376244065, now seen corresponding path program 1 times [2021-11-23 13:06:40,987 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:06:40,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144680013] [2021-11-23 13:06:40,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:06:40,988 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:06:40,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:06:41,054 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:06:41,055 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:06:41,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144680013] [2021-11-23 13:06:41,055 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144680013] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:06:41,055 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:06:41,055 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-23 13:06:41,055 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331499299] [2021-11-23 13:06:41,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:06:41,056 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 13:06:41,056 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:06:41,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 13:06:41,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-23 13:06:41,057 INFO L87 Difference]: Start difference. First operand 302 states and 368 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:41,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:06:41,187 INFO L93 Difference]: Finished difference Result 249 states and 280 transitions. [2021-11-23 13:06:41,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 13:06:41,188 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2021-11-23 13:06:41,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:06:41,190 INFO L225 Difference]: With dead ends: 249 [2021-11-23 13:06:41,190 INFO L226 Difference]: Without dead ends: 249 [2021-11-23 13:06:41,190 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-23 13:06:41,191 INFO L933 BasicCegarLoop]: 134 mSDtfsCounter, 56 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 524 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:06:41,191 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 524 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:06:41,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2021-11-23 13:06:41,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 249. [2021-11-23 13:06:41,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 225 states have (on average 1.2444444444444445) internal successors, (280), 248 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:41,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 280 transitions. [2021-11-23 13:06:41,200 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 280 transitions. Word has length 47 [2021-11-23 13:06:41,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:06:41,200 INFO L470 AbstractCegarLoop]: Abstraction has 249 states and 280 transitions. [2021-11-23 13:06:41,201 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:41,201 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 280 transitions. [2021-11-23 13:06:41,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-23 13:06:41,202 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:06:41,202 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] [2021-11-23 13:06:41,202 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-11-23 13:06:41,202 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr85ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-23 13:06:41,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:06:41,203 INFO L85 PathProgramCache]: Analyzing trace with hash -1538447444, now seen corresponding path program 1 times [2021-11-23 13:06:41,203 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:06:41,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751336550] [2021-11-23 13:06:41,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:06:41,204 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:06:41,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:06:41,345 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 13:06:41,345 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:06:41,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751336550] [2021-11-23 13:06:41,345 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751336550] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:06:41,346 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:06:41,346 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-23 13:06:41,346 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227863658] [2021-11-23 13:06:41,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:06:41,347 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-23 13:06:41,347 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:06:41,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-23 13:06:41,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-23 13:06:41,348 INFO L87 Difference]: Start difference. First operand 249 states and 280 transitions. Second operand has 11 states, 11 states have (on average 4.545454545454546) internal successors, (50), 11 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:41,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:06:41,870 INFO L93 Difference]: Finished difference Result 238 states and 263 transitions. [2021-11-23 13:06:41,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-23 13:06:41,871 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.545454545454546) internal successors, (50), 11 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2021-11-23 13:06:41,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:06:41,873 INFO L225 Difference]: With dead ends: 238 [2021-11-23 13:06:41,873 INFO L226 Difference]: Without dead ends: 238 [2021-11-23 13:06:41,873 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=106, Invalid=314, Unknown=0, NotChecked=0, Total=420 [2021-11-23 13:06:41,874 INFO L933 BasicCegarLoop]: 86 mSDtfsCounter, 469 mSDsluCounter, 487 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 469 SdHoareTripleChecker+Valid, 573 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-23 13:06:41,874 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [469 Valid, 573 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 433 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-23 13:06:41,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2021-11-23 13:06:41,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 226. [2021-11-23 13:06:41,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 202 states have (on average 1.2623762376237624) internal successors, (255), 225 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) [2021-11-23 13:06:41,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 255 transitions. [2021-11-23 13:06:41,880 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 255 transitions. Word has length 50 [2021-11-23 13:06:41,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:06:41,881 INFO L470 AbstractCegarLoop]: Abstraction has 226 states and 255 transitions. [2021-11-23 13:06:41,881 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.545454545454546) internal successors, (50), 11 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:41,881 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 255 transitions. [2021-11-23 13:06:41,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-23 13:06:41,882 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:06:41,882 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-23 13:06:41,882 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-11-23 13:06:41,882 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr55REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-23 13:06:41,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:06:41,883 INFO L85 PathProgramCache]: Analyzing trace with hash 1188819543, now seen corresponding path program 1 times [2021-11-23 13:06:41,883 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:06:41,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114368321] [2021-11-23 13:06:41,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:06:41,884 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:06:41,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:06:41,925 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:06:41,926 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:06:41,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114368321] [2021-11-23 13:06:41,926 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114368321] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:06:41,926 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:06:41,927 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 13:06:41,927 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399703305] [2021-11-23 13:06:41,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:06:41,927 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 13:06:41,927 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:06:41,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 13:06:41,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 13:06:41,928 INFO L87 Difference]: Start difference. First operand 226 states and 255 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:42,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:06:42,052 INFO L93 Difference]: Finished difference Result 240 states and 270 transitions. [2021-11-23 13:06:42,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 13:06:42,052 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2021-11-23 13:06:42,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:06:42,054 INFO L225 Difference]: With dead ends: 240 [2021-11-23 13:06:42,054 INFO L226 Difference]: Without dead ends: 240 [2021-11-23 13:06:42,054 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-23 13:06:42,055 INFO L933 BasicCegarLoop]: 139 mSDtfsCounter, 19 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:06:42,055 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 491 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:06:42,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2021-11-23 13:06:42,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 229. [2021-11-23 13:06:42,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 205 states have (on average 1.2585365853658537) internal successors, (258), 228 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:42,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 258 transitions. [2021-11-23 13:06:42,065 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 258 transitions. Word has length 52 [2021-11-23 13:06:42,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:06:42,065 INFO L470 AbstractCegarLoop]: Abstraction has 229 states and 258 transitions. [2021-11-23 13:06:42,065 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:06:42,065 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 258 transitions. [2021-11-23 13:06:42,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-23 13:06:42,066 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:06:42,066 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-23 13:06:42,066 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-11-23 13:06:42,067 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr55REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-23 13:06:42,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:06:42,067 INFO L85 PathProgramCache]: Analyzing trace with hash 426433170, now seen corresponding path program 1 times [2021-11-23 13:06:42,067 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:06:42,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599448052] [2021-11-23 13:06:42,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:06:42,068 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:06:42,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:06:42,503 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:06:42,503 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:06:42,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599448052] [2021-11-23 13:06:42,503 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599448052] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 13:06:42,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2100005286] [2021-11-23 13:06:42,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:06:42,503 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:06:42,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca443a6-ab15-45f9-8254-9dfd371ce542/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:06:42,505 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca443a6-ab15-45f9-8254-9dfd371ce542/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:06:42,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca443a6-ab15-45f9-8254-9dfd371ce542/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-23 13:06:42,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:06:42,580 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 40 conjunts are in the unsatisfiable core [2021-11-23 13:06:42,583 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:06:42,591 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-23 13:06:42,636 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-23 13:06:42,640 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-23 13:06:42,774 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-23 13:06:42,774 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-11-23 13:06:42,854 INFO L354 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2021-11-23 13:06:42,854 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 35 [2021-11-23 13:06:42,879 INFO L354 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2021-11-23 13:06:42,879 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 20 [2021-11-23 13:06:43,088 INFO L354 Elim1Store]: treesize reduction 72, result has 19.1 percent of original size [2021-11-23 13:06:43,089 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 91 treesize of output 76 [2021-11-23 13:06:43,114 INFO L354 Elim1Store]: treesize reduction 88, result has 16.2 percent of original size [2021-11-23 13:06:43,115 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 83 treesize of output 81 [2021-11-23 13:06:43,566 INFO L354 Elim1Store]: treesize reduction 118, result has 21.3 percent of original size [2021-11-23 13:06:43,567 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 104 treesize of output 102 [2021-11-23 13:06:43,600 INFO L354 Elim1Store]: treesize reduction 110, result has 22.5 percent of original size [2021-11-23 13:06:43,600 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 99 treesize of output 101 [2021-11-23 13:06:44,071 INFO L354 Elim1Store]: treesize reduction 118, result has 16.9 percent of original size [2021-11-23 13:06:44,072 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 113 treesize of output 93 [2021-11-23 13:06:44,104 INFO L354 Elim1Store]: treesize reduction 146, result has 16.1 percent of original size [2021-11-23 13:06:44,105 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 105 treesize of output 106 [2021-11-23 13:06:46,633 INFO L354 Elim1Store]: treesize reduction 63, result has 11.3 percent of original size [2021-11-23 13:06:46,633 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 110 treesize of output 79 [2021-11-23 13:06:46,646 INFO L354 Elim1Store]: treesize reduction 70, result has 1.4 percent of original size [2021-11-23 13:06:46,646 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 67 treesize of output 45 [2021-11-23 13:06:46,949 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:06:46,949 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:07:10,077 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:07:10,078 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2100005286] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 13:07:10,078 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 13:07:10,078 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 12] total 40 [2021-11-23 13:07:10,078 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400685818] [2021-11-23 13:07:10,078 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 13:07:10,079 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2021-11-23 13:07:10,079 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:07:10,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-11-23 13:07:10,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=243, Invalid=1311, Unknown=6, NotChecked=0, Total=1560 [2021-11-23 13:07:10,080 INFO L87 Difference]: Start difference. First operand 229 states and 258 transitions. Second operand has 40 states, 40 states have (on average 3.675) internal successors, (147), 40 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:07:23,201 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse5 (+ 8 |c_ULTIMATE.start_main_~end~0#1.offset|)) (.cse6 (+ |c_ULTIMATE.start_main_~list~0#1.offset| 8))) (and (= (select |c_#valid| |c_ULTIMATE.start_main_~list~0#1.base|) 1) (forall ((|ULTIMATE.start_main_~end~0#1.offset| Int) (|ULTIMATE.start_main_#t~mem11#1.offset| Int)) (let ((.cse2 (+ |ULTIMATE.start_main_#t~mem11#1.offset| 4)) (.cse3 (+ |c_ULTIMATE.start_main_~list~0#1.offset| 8))) (let ((.cse0 (select (select (let ((.cse4 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset| |c_ULTIMATE.start_main_#t~malloc10#1.base|)))) (store .cse4 |c_ULTIMATE.start_main_#t~malloc10#1.base| (store (select .cse4 |c_ULTIMATE.start_main_#t~malloc10#1.base|) .cse2 |c_ULTIMATE.start_main_~end~0#1.base|))) |c_ULTIMATE.start_main_~list~0#1.base|) .cse3))) (or (= (select |c_#valid| .cse0) 1) (and (= (select (select (let ((.cse1 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~end~0#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset| |c_ULTIMATE.start_main_#t~malloc10#1.offset|)))) (store .cse1 |c_ULTIMATE.start_main_#t~malloc10#1.base| (store (select .cse1 |c_ULTIMATE.start_main_#t~malloc10#1.base|) .cse2 |ULTIMATE.start_main_~end~0#1.offset|))) |c_ULTIMATE.start_main_~list~0#1.base|) .cse3) 0) (= .cse0 0)))))) (= (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~end~0#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~end~0#1.base|) .cse5 0)) |c_ULTIMATE.start_main_~list~0#1.base|) .cse6) 0) (= |c_ULTIMATE.start_main_~list~0#1.offset| 0) (= (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base|) .cse5 0)) |c_ULTIMATE.start_main_~list~0#1.base|) .cse6) 0))) is different from false [2021-11-23 13:07:30,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:07:30,816 INFO L93 Difference]: Finished difference Result 400 states and 431 transitions. [2021-11-23 13:07:30,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-11-23 13:07:30,816 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 3.675) internal successors, (147), 40 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-11-23 13:07:30,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:07:30,818 INFO L225 Difference]: With dead ends: 400 [2021-11-23 13:07:30,818 INFO L226 Difference]: Without dead ends: 400 [2021-11-23 13:07:30,820 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 88 SyntacticMatches, 3 SemanticMatches, 68 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1257 ImplicationChecksByTransitivity, 42.8s TimeCoverageRelationStatistics Valid=672, Invalid=4009, Unknown=15, NotChecked=134, Total=4830 [2021-11-23 13:07:30,821 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 522 mSDsluCounter, 1485 mSDsCounter, 0 mSdLazyCounter, 947 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 522 SdHoareTripleChecker+Valid, 1584 SdHoareTripleChecker+Invalid, 1765 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 947 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 760 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-23 13:07:30,821 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [522 Valid, 1584 Invalid, 1765 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 947 Invalid, 0 Unknown, 760 Unchecked, 1.0s Time] [2021-11-23 13:07:30,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2021-11-23 13:07:30,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 294. [2021-11-23 13:07:30,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 270 states have (on average 1.2185185185185186) internal successors, (329), 293 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:07:30,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 329 transitions. [2021-11-23 13:07:30,829 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 329 transitions. Word has length 54 [2021-11-23 13:07:30,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:07:30,829 INFO L470 AbstractCegarLoop]: Abstraction has 294 states and 329 transitions. [2021-11-23 13:07:30,830 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 3.675) internal successors, (147), 40 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:07:30,830 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 329 transitions. [2021-11-23 13:07:30,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-23 13:07:30,831 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:07:30,831 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-23 13:07:30,867 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca443a6-ab15-45f9-8254-9dfd371ce542/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-11-23 13:07:31,048 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca443a6-ab15-45f9-8254-9dfd371ce542/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:07:31,049 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr52REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-23 13:07:31,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:07:31,049 INFO L85 PathProgramCache]: Analyzing trace with hash -2048851803, now seen corresponding path program 1 times [2021-11-23 13:07:31,049 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:07:31,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175125303] [2021-11-23 13:07:31,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:07:31,049 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:07:31,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:07:31,516 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:07:31,516 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:07:31,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175125303] [2021-11-23 13:07:31,516 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175125303] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 13:07:31,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [582975984] [2021-11-23 13:07:31,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:07:31,517 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:07:31,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca443a6-ab15-45f9-8254-9dfd371ce542/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:07:31,519 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca443a6-ab15-45f9-8254-9dfd371ce542/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:07:31,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca443a6-ab15-45f9-8254-9dfd371ce542/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-23 13:07:31,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:07:31,591 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-23 13:07:31,595 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:07:31,606 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-23 13:07:31,766 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-23 13:07:31,767 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-11-23 13:07:31,835 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2021-11-23 13:07:31,997 INFO L354 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2021-11-23 13:07:31,998 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 29 [2021-11-23 13:07:32,317 INFO L354 Elim1Store]: treesize reduction 62, result has 27.1 percent of original size [2021-11-23 13:07:32,317 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 49 treesize of output 48 [2021-11-23 13:07:32,484 INFO L354 Elim1Store]: treesize reduction 60, result has 20.0 percent of original size [2021-11-23 13:07:32,484 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 39 [2021-11-23 13:07:32,970 INFO L354 Elim1Store]: treesize reduction 68, result has 4.2 percent of original size [2021-11-23 13:07:32,970 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 60 treesize of output 36 [2021-11-23 13:07:33,050 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:07:33,050 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:08:02,136 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 3777 treesize of output 3761 [2021-11-23 13:08:02,175 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-11-23 13:08:02,175 INFO L186 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2021-11-23 13:08:02,176 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2021-11-23 13:08:02,176 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712230344] [2021-11-23 13:08:02,176 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2021-11-23 13:08:02,176 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-23 13:08:02,176 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:08:02,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-23 13:08:02,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=988, Unknown=12, NotChecked=0, Total=1190 [2021-11-23 13:08:02,178 INFO L87 Difference]: Start difference. First operand 294 states and 329 transitions. Second operand has 14 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 14 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:08:03,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:08:03,854 INFO L93 Difference]: Finished difference Result 452 states and 480 transitions. [2021-11-23 13:08:03,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-23 13:08:03,854 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 14 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2021-11-23 13:08:03,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:08:03,856 INFO L225 Difference]: With dead ends: 452 [2021-11-23 13:08:03,856 INFO L226 Difference]: Without dead ends: 452 [2021-11-23 13:08:03,857 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 70 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 737 ImplicationChecksByTransitivity, 30.2s TimeCoverageRelationStatistics Valid=410, Invalid=1930, Unknown=12, NotChecked=0, Total=2352 [2021-11-23 13:08:03,857 INFO L933 BasicCegarLoop]: 79 mSDtfsCounter, 906 mSDsluCounter, 602 mSDsCounter, 0 mSdLazyCounter, 734 mSolverCounterSat, 140 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 906 SdHoareTripleChecker+Valid, 681 SdHoareTripleChecker+Invalid, 874 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-23 13:08:03,857 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [906 Valid, 681 Invalid, 874 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 734 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-23 13:08:03,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2021-11-23 13:08:03,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 343. [2021-11-23 13:08:03,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 319 states have (on average 1.219435736677116) internal successors, (389), 342 states have internal predecessors, (389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:08:03,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 389 transitions. [2021-11-23 13:08:03,867 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 389 transitions. Word has length 56 [2021-11-23 13:08:03,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:08:03,867 INFO L470 AbstractCegarLoop]: Abstraction has 343 states and 389 transitions. [2021-11-23 13:08:03,868 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 14 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:08:03,868 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 389 transitions. [2021-11-23 13:08:03,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-23 13:08:03,869 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:08:03,869 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-23 13:08:03,904 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca443a6-ab15-45f9-8254-9dfd371ce542/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-23 13:08:04,082 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca443a6-ab15-45f9-8254-9dfd371ce542/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2021-11-23 13:08:04,083 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr53REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-23 13:08:04,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:08:04,083 INFO L85 PathProgramCache]: Analyzing trace with hash -2048851802, now seen corresponding path program 1 times [2021-11-23 13:08:04,083 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:08:04,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482269587] [2021-11-23 13:08:04,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:08:04,084 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:08:04,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:08:04,512 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:08:04,512 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:08:04,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482269587] [2021-11-23 13:08:04,513 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482269587] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 13:08:04,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [804719240] [2021-11-23 13:08:04,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:08:04,513 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:08:04,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca443a6-ab15-45f9-8254-9dfd371ce542/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:08:04,517 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca443a6-ab15-45f9-8254-9dfd371ce542/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:08:04,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca443a6-ab15-45f9-8254-9dfd371ce542/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-23 13:08:04,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:08:04,596 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 34 conjunts are in the unsatisfiable core [2021-11-23 13:08:04,599 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:08:04,942 INFO L354 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2021-11-23 13:08:04,943 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 26 [2021-11-23 13:08:04,979 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-11-23 13:08:04,980 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 18 [2021-11-23 13:08:05,315 INFO L354 Elim1Store]: treesize reduction 52, result has 22.4 percent of original size [2021-11-23 13:08:05,315 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 94 treesize of output 78 [2021-11-23 13:08:05,351 INFO L354 Elim1Store]: treesize reduction 92, result has 17.1 percent of original size [2021-11-23 13:08:05,351 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 90 treesize of output 92 [2021-11-23 13:08:06,466 INFO L354 Elim1Store]: treesize reduction 193, result has 14.2 percent of original size [2021-11-23 13:08:06,467 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 165 treesize of output 139 [2021-11-23 13:08:06,526 INFO L354 Elim1Store]: treesize reduction 77, result has 23.8 percent of original size [2021-11-23 13:08:06,527 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 10 case distinctions, treesize of input 130 treesize of output 109 [2021-11-23 13:08:07,230 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:08:07,231 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:08:08,549 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 13:08:08,549 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 104 treesize of output 108 [2021-11-23 13:08:11,879 INFO L354 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2021-11-23 13:08:11,880 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 351 treesize of output 270 [2021-11-23 13:08:11,888 INFO L354 Elim1Store]: treesize reduction 10, result has 9.1 percent of original size [2021-11-23 13:08:11,888 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 391 treesize of output 271 [2021-11-23 13:08:12,330 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:08:12,330 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [804719240] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 13:08:12,330 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 13:08:12,330 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11, 11] total 33 [2021-11-23 13:08:12,330 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120240640] [2021-11-23 13:08:12,330 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 13:08:12,331 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2021-11-23 13:08:12,331 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:08:12,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-11-23 13:08:12,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=1008, Unknown=1, NotChecked=0, Total=1122 [2021-11-23 13:08:12,332 INFO L87 Difference]: Start difference. First operand 343 states and 389 transitions. Second operand has 34 states, 33 states have (on average 5.03030303030303) internal successors, (166), 34 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:08:18,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:08:18,875 INFO L93 Difference]: Finished difference Result 505 states and 545 transitions. [2021-11-23 13:08:18,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-11-23 13:08:18,876 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 5.03030303030303) internal successors, (166), 34 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2021-11-23 13:08:18,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:08:18,878 INFO L225 Difference]: With dead ends: 505 [2021-11-23 13:08:18,878 INFO L226 Difference]: Without dead ends: 505 [2021-11-23 13:08:18,880 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 101 SyntacticMatches, 3 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1499 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=810, Invalid=4889, Unknown=1, NotChecked=0, Total=5700 [2021-11-23 13:08:18,881 INFO L933 BasicCegarLoop]: 127 mSDtfsCounter, 1124 mSDsluCounter, 1899 mSDsCounter, 0 mSdLazyCounter, 1347 mSolverCounterSat, 162 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1124 SdHoareTripleChecker+Valid, 2026 SdHoareTripleChecker+Invalid, 2461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 162 IncrementalHoareTripleChecker+Valid, 1347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 952 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-11-23 13:08:18,881 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1124 Valid, 2026 Invalid, 2461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [162 Valid, 1347 Invalid, 0 Unknown, 952 Unchecked, 1.4s Time] [2021-11-23 13:08:18,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2021-11-23 13:08:18,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 342. [2021-11-23 13:08:18,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 318 states have (on average 1.2169811320754718) internal successors, (387), 341 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:08:18,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 387 transitions. [2021-11-23 13:08:18,894 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 387 transitions. Word has length 56 [2021-11-23 13:08:18,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:08:18,895 INFO L470 AbstractCegarLoop]: Abstraction has 342 states and 387 transitions. [2021-11-23 13:08:18,895 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 5.03030303030303) internal successors, (166), 34 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:08:18,896 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 387 transitions. [2021-11-23 13:08:18,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-23 13:08:18,897 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:08:18,897 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] [2021-11-23 13:08:18,940 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca443a6-ab15-45f9-8254-9dfd371ce542/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-23 13:08:19,111 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca443a6-ab15-45f9-8254-9dfd371ce542/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2021-11-23 13:08:19,112 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr71ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-23 13:08:19,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:08:19,112 INFO L85 PathProgramCache]: Analyzing trace with hash -1627380482, now seen corresponding path program 1 times [2021-11-23 13:08:19,112 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:08:19,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273639201] [2021-11-23 13:08:19,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:08:19,112 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:08:19,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:08:19,742 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:08:19,742 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:08:19,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273639201] [2021-11-23 13:08:19,742 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273639201] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 13:08:19,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [952346714] [2021-11-23 13:08:19,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:08:19,743 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:08:19,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca443a6-ab15-45f9-8254-9dfd371ce542/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:08:19,745 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca443a6-ab15-45f9-8254-9dfd371ce542/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:08:19,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca443a6-ab15-45f9-8254-9dfd371ce542/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-23 13:08:19,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:08:19,826 INFO L263 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 47 conjunts are in the unsatisfiable core [2021-11-23 13:08:19,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:08:19,835 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-23 13:08:19,886 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-23 13:08:19,886 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-11-23 13:08:19,900 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2021-11-23 13:08:19,906 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-23 13:08:19,970 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-11-23 13:08:19,970 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 66 treesize of output 44 [2021-11-23 13:08:19,984 INFO L354 Elim1Store]: treesize reduction 43, result has 17.3 percent of original size [2021-11-23 13:08:19,984 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 56 treesize of output 49 [2021-11-23 13:08:20,148 INFO L354 Elim1Store]: treesize reduction 92, result has 15.6 percent of original size [2021-11-23 13:08:20,148 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 108 treesize of output 77 [2021-11-23 13:08:20,171 INFO L354 Elim1Store]: treesize reduction 84, result has 21.5 percent of original size [2021-11-23 13:08:20,171 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 98 treesize of output 85 [2021-11-23 13:08:21,155 INFO L354 Elim1Store]: treesize reduction 17, result has 5.6 percent of original size [2021-11-23 13:08:21,155 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 84 treesize of output 47 [2021-11-23 13:08:21,159 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-11-23 13:08:21,159 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 22 [2021-11-23 13:08:21,166 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 13:08:21,166 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:08:22,031 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 13:08:22,032 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 568 treesize of output 492 [2021-11-23 13:08:22,158 INFO L354 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2021-11-23 13:08:22,159 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 562 treesize of output 1 [2021-11-23 13:08:22,348 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 13:08:22,349 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [952346714] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-23 13:08:22,349 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-23 13:08:22,349 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [15, 15] total 31 [2021-11-23 13:08:22,349 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883831829] [2021-11-23 13:08:22,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:08:22,350 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-23 13:08:22,350 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:08:22,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-23 13:08:22,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=778, Unknown=0, NotChecked=0, Total=930 [2021-11-23 13:08:22,351 INFO L87 Difference]: Start difference. First operand 342 states and 387 transitions. Second operand has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:08:23,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:08:23,935 INFO L93 Difference]: Finished difference Result 374 states and 416 transitions. [2021-11-23 13:08:23,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-23 13:08:23,935 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2021-11-23 13:08:23,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:08:23,937 INFO L225 Difference]: With dead ends: 374 [2021-11-23 13:08:23,937 INFO L226 Difference]: Without dead ends: 374 [2021-11-23 13:08:23,938 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 98 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 661 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=302, Invalid=1860, Unknown=0, NotChecked=0, Total=2162 [2021-11-23 13:08:23,939 INFO L933 BasicCegarLoop]: 83 mSDtfsCounter, 278 mSDsluCounter, 656 mSDsCounter, 0 mSdLazyCounter, 710 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 739 SdHoareTripleChecker+Invalid, 749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 710 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-23 13:08:23,939 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [278 Valid, 739 Invalid, 749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 710 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-11-23 13:08:23,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2021-11-23 13:08:23,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 342. [2021-11-23 13:08:23,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 318 states have (on average 1.2138364779874213) internal successors, (386), 341 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:08:23,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 386 transitions. [2021-11-23 13:08:23,947 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 386 transitions. Word has length 57 [2021-11-23 13:08:23,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:08:23,948 INFO L470 AbstractCegarLoop]: Abstraction has 342 states and 386 transitions. [2021-11-23 13:08:23,948 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:08:23,948 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 386 transitions. [2021-11-23 13:08:23,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-23 13:08:23,949 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:08:23,950 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-23 13:08:23,990 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca443a6-ab15-45f9-8254-9dfd371ce542/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-23 13:08:24,176 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca443a6-ab15-45f9-8254-9dfd371ce542/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2021-11-23 13:08:24,177 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr55REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-23 13:08:24,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:08:24,177 INFO L85 PathProgramCache]: Analyzing trace with hash 1135767587, now seen corresponding path program 1 times [2021-11-23 13:08:24,177 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:08:24,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914011775] [2021-11-23 13:08:24,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:08:24,177 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:08:24,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:08:24,870 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:08:24,871 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:08:24,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914011775] [2021-11-23 13:08:24,871 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914011775] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 13:08:24,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [134655967] [2021-11-23 13:08:24,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:08:24,871 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:08:24,871 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca443a6-ab15-45f9-8254-9dfd371ce542/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:08:24,876 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca443a6-ab15-45f9-8254-9dfd371ce542/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:08:24,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca443a6-ab15-45f9-8254-9dfd371ce542/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-23 13:08:24,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:08:24,958 INFO L263 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 39 conjunts are in the unsatisfiable core [2021-11-23 13:08:24,961 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:08:24,976 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-23 13:08:25,042 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-23 13:08:25,042 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-11-23 13:08:25,110 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 19 [2021-11-23 13:08:25,196 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-11-23 13:08:25,197 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 29 [2021-11-23 13:08:25,408 INFO L354 Elim1Store]: treesize reduction 68, result has 20.0 percent of original size [2021-11-23 13:08:25,408 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 60 treesize of output 41 [2021-11-23 13:08:29,756 INFO L354 Elim1Store]: treesize reduction 54, result has 36.5 percent of original size [2021-11-23 13:08:29,757 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 28 treesize of output 45 [2021-11-23 13:08:29,912 INFO L354 Elim1Store]: treesize reduction 62, result has 28.7 percent of original size [2021-11-23 13:08:29,912 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 67 treesize of output 60 [2021-11-23 13:08:30,394 INFO L354 Elim1Store]: treesize reduction 136, result has 16.0 percent of original size [2021-11-23 13:08:30,395 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 80 treesize of output 72 [2021-11-23 13:08:31,344 INFO L354 Elim1Store]: treesize reduction 194, result has 17.4 percent of original size [2021-11-23 13:08:31,344 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 90 treesize of output 91 [2021-11-23 13:08:34,754 INFO L354 Elim1Store]: treesize reduction 196, result has 14.4 percent of original size [2021-11-23 13:08:34,754 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 91 treesize of output 82 [2021-11-23 13:08:38,605 INFO L354 Elim1Store]: treesize reduction 121, result has 6.2 percent of original size [2021-11-23 13:08:38,605 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 91 treesize of output 58 [2021-11-23 13:08:42,314 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:08:42,315 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:09:25,001 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~end~0#1.offset_93| Int) (|ULTIMATE.start_main_#t~mem11#1.offset| Int)) (= (select |c_#valid| (select (select (let ((.cse0 (let ((.cse2 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|))) (store |c_#memory_$Pointer$.base| .cse2 (store (select |c_#memory_$Pointer$.base| .cse2) (+ |ULTIMATE.start_main_#t~mem11#1.offset| 4) |c_ULTIMATE.start_main_~end~0#1.base|))))) (let ((.cse1 (select (select .cse0 |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|))) (store .cse0 .cse1 (store (store (select .cse0 .cse1) |v_ULTIMATE.start_main_~end~0#1.offset_93| 0) (+ 8 |v_ULTIMATE.start_main_~end~0#1.offset_93|) 0)))) |c_ULTIMATE.start_main_~list~0#1.base|) (+ |c_ULTIMATE.start_main_~list~0#1.offset| 8))) 1)) is different from false [2021-11-23 13:09:27,017 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~end~0#1.offset_93| Int) (|ULTIMATE.start_main_~end~0#1.offset| Int) (|ULTIMATE.start_main_#t~mem11#1.offset| Int)) (= (select |c_#valid| (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset| |c_ULTIMATE.start_main_#t~malloc10#1.base|)))) (store .cse2 |c_ULTIMATE.start_main_#t~malloc10#1.base| (store (select .cse2 |c_ULTIMATE.start_main_#t~malloc10#1.base|) (+ |ULTIMATE.start_main_#t~mem11#1.offset| 4) |c_ULTIMATE.start_main_~end~0#1.base|))))) (let ((.cse1 (select (select .cse0 |c_ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|))) (store .cse0 .cse1 (store (store (select .cse0 .cse1) |v_ULTIMATE.start_main_~end~0#1.offset_93| 0) (+ 8 |v_ULTIMATE.start_main_~end~0#1.offset_93|) 0)))) |c_ULTIMATE.start_main_~list~0#1.base|) (+ |c_ULTIMATE.start_main_~list~0#1.offset| 8))) 1)) is different from false [2021-11-23 13:10:06,616 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-11-23 13:10:06,616 INFO L186 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2021-11-23 13:10:06,616 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2021-11-23 13:10:06,616 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434766642] [2021-11-23 13:10:06,616 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2021-11-23 13:10:06,616 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-11-23 13:10:06,617 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:10:06,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-11-23 13:10:06,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=288, Invalid=1747, Unknown=43, NotChecked=178, Total=2256 [2021-11-23 13:10:06,618 INFO L87 Difference]: Start difference. First operand 342 states and 386 transitions. Second operand has 20 states, 19 states have (on average 3.1052631578947367) internal successors, (59), 20 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:10:16,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:10:16,908 INFO L93 Difference]: Finished difference Result 493 states and 536 transitions. [2021-11-23 13:10:16,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-23 13:10:16,908 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 3.1052631578947367) internal successors, (59), 20 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2021-11-23 13:10:16,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:10:16,911 INFO L225 Difference]: With dead ends: 493 [2021-11-23 13:10:16,911 INFO L226 Difference]: Without dead ends: 493 [2021-11-23 13:10:16,912 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 83 SyntacticMatches, 1 SemanticMatches, 63 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 1045 ImplicationChecksByTransitivity, 99.0s TimeCoverageRelationStatistics Valid=554, Invalid=3313, Unknown=47, NotChecked=246, Total=4160 [2021-11-23 13:10:16,913 INFO L933 BasicCegarLoop]: 130 mSDtfsCounter, 700 mSDsluCounter, 1336 mSDsCounter, 0 mSdLazyCounter, 1533 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 700 SdHoareTripleChecker+Valid, 1466 SdHoareTripleChecker+Invalid, 1611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 1533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-11-23 13:10:16,913 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [700 Valid, 1466 Invalid, 1611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 1533 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-11-23 13:10:16,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2021-11-23 13:10:16,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 342. [2021-11-23 13:10:16,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 318 states have (on average 1.2106918238993711) internal successors, (385), 341 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:10:16,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 385 transitions. [2021-11-23 13:10:16,924 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 385 transitions. Word has length 59 [2021-11-23 13:10:16,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:10:16,925 INFO L470 AbstractCegarLoop]: Abstraction has 342 states and 385 transitions. [2021-11-23 13:10:16,925 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 3.1052631578947367) internal successors, (59), 20 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:10:16,925 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 385 transitions. [2021-11-23 13:10:16,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-23 13:10:16,926 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:10:16,927 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-23 13:10:16,965 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca443a6-ab15-45f9-8254-9dfd371ce542/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-23 13:10:17,152 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca443a6-ab15-45f9-8254-9dfd371ce542/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2021-11-23 13:10:17,153 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr56REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-23 13:10:17,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:10:17,153 INFO L85 PathProgramCache]: Analyzing trace with hash 1135767588, now seen corresponding path program 1 times [2021-11-23 13:10:17,153 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:10:17,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796185061] [2021-11-23 13:10:17,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:10:17,153 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:10:17,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:10:17,949 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:10:17,949 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:10:17,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796185061] [2021-11-23 13:10:17,949 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796185061] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 13:10:17,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1501451470] [2021-11-23 13:10:17,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:10:17,950 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:10:17,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca443a6-ab15-45f9-8254-9dfd371ce542/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:10:17,950 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca443a6-ab15-45f9-8254-9dfd371ce542/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:10:17,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ca443a6-ab15-45f9-8254-9dfd371ce542/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-23 13:10:18,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:10:18,013 INFO L263 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 55 conjunts are in the unsatisfiable core [2021-11-23 13:10:18,014 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:10:18,024 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-23 13:10:18,078 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-23 13:10:18,079 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-11-23 13:10:18,090 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-23 13:10:18,142 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 24 [2021-11-23 13:10:18,154 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-23 13:10:18,309 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-11-23 13:10:18,310 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 88 treesize of output 54 [2021-11-23 13:10:18,337 INFO L354 Elim1Store]: treesize reduction 43, result has 17.3 percent of original size [2021-11-23 13:10:18,337 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 78 treesize of output 71 [2021-11-23 13:10:18,587 INFO L354 Elim1Store]: treesize reduction 68, result has 20.0 percent of original size [2021-11-23 13:10:18,587 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 118 treesize of output 75 [2021-11-23 13:10:18,616 INFO L354 Elim1Store]: treesize reduction 92, result has 20.0 percent of original size [2021-11-23 13:10:18,616 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 108 treesize of output 104 [2021-11-23 13:10:23,086 INFO L354 Elim1Store]: treesize reduction 8, result has 65.2 percent of original size [2021-11-23 13:10:23,086 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 24 [2021-11-23 13:10:23,095 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2021-11-23 13:10:23,227 INFO L354 Elim1Store]: treesize reduction 62, result has 28.7 percent of original size [2021-11-23 13:10:23,227 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 102 treesize of output 89 [2021-11-23 13:10:23,254 INFO L354 Elim1Store]: treesize reduction 68, result has 21.8 percent of original size [2021-11-23 13:10:23,256 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 88 treesize of output 90 [2021-11-23 13:10:23,919 INFO L354 Elim1Store]: treesize reduction 136, result has 16.0 percent of original size [2021-11-23 13:10:23,919 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 126 treesize of output 110 [2021-11-23 13:10:23,982 INFO L354 Elim1Store]: treesize reduction 160, result has 14.0 percent of original size [2021-11-23 13:10:23,983 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 118 treesize of output 119 [2021-11-23 13:10:25,220 INFO L354 Elim1Store]: treesize reduction 194, result has 17.4 percent of original size [2021-11-23 13:10:25,220 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 139 treesize of output 136 [2021-11-23 13:10:25,292 INFO L354 Elim1Store]: treesize reduction 218, result has 17.1 percent of original size [2021-11-23 13:10:25,292 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 141 treesize of output 155 [2021-11-23 13:10:27,606 INFO L354 Elim1Store]: treesize reduction 196, result has 14.4 percent of original size [2021-11-23 13:10:27,606 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 148 treesize of output 127 [2021-11-23 13:10:27,668 INFO L354 Elim1Store]: treesize reduction 236, result has 13.6 percent of original size [2021-11-23 13:10:27,668 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 140 treesize of output 144 [2021-11-23 13:10:33,002 INFO L354 Elim1Store]: treesize reduction 121, result has 6.2 percent of original size [2021-11-23 13:10:33,003 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 140 treesize of output 99 [2021-11-23 13:10:33,018 INFO L354 Elim1Store]: treesize reduction 128, result has 0.8 percent of original size [2021-11-23 13:10:33,018 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 84 treesize of output 56 [2021-11-23 13:10:33,744 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:10:33,744 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:10:49,624 WARN L227 SmtUtils]: Spent 8.24s on a formula simplification that was a NOOP. DAG size: 32 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 13:10:51,638 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|ULTIMATE.start_main_~end~0#1.offset| Int)) (<= 0 (+ (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem12#1.base| (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem12#1.base|) |ULTIMATE.start_main_~end~0#1.offset| 0) (+ 8 |ULTIMATE.start_main_~end~0#1.offset|) 0)) |c_ULTIMATE.start_main_~list~0#1.base|) (+ |c_ULTIMATE.start_main_~list~0#1.offset| 8)) 8))) (forall ((|ULTIMATE.start_main_~end~0#1.offset| Int)) (let ((.cse0 (+ 8 |ULTIMATE.start_main_~end~0#1.offset|)) (.cse1 (+ |c_ULTIMATE.start_main_~list~0#1.offset| 8))) (<= (+ (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem12#1.base| (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem12#1.base|) |ULTIMATE.start_main_~end~0#1.offset| 0) .cse0 0)) |c_ULTIMATE.start_main_~list~0#1.base|) .cse1) 12) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem12#1.base| (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem12#1.base|) |ULTIMATE.start_main_~end~0#1.offset| 0) .cse0 0)) |c_ULTIMATE.start_main_~list~0#1.base|) .cse1)))))) is different from false [2021-11-23 13:11:08,744 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|ULTIMATE.start_main_#t~mem11#1.offset| Int) (v_subst_2 Int)) (<= 0 (+ (select (select (let ((.cse2 (+ |ULTIMATE.start_main_#t~mem11#1.offset| 4))) (let ((.cse0 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem11#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem11#1.base|) .cse2 |c_ULTIMATE.start_main_~end~0#1.offset|))) (.cse1 (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem11#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem11#1.base|) .cse2 |c_ULTIMATE.start_main_~end~0#1.base|)) |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|))) (store .cse0 .cse1 (store (store (select .cse0 .cse1) v_subst_2 0) (+ 8 v_subst_2) 0)))) |c_ULTIMATE.start_main_~list~0#1.base|) (+ |c_ULTIMATE.start_main_~list~0#1.offset| 8)) 8))) (forall ((|ULTIMATE.start_main_#t~mem11#1.offset| Int) (v_subst_1 Int)) (let ((.cse6 (+ |ULTIMATE.start_main_#t~mem11#1.offset| 4))) (let ((.cse8 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem11#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem11#1.base|) .cse6 |c_ULTIMATE.start_main_~end~0#1.base|)))) (let ((.cse4 (select (select .cse8 |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|)) (.cse5 (+ 8 v_subst_1)) (.cse7 (+ |c_ULTIMATE.start_main_~list~0#1.offset| 8))) (<= (+ (select (select (let ((.cse3 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem11#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem11#1.base|) .cse6 |c_ULTIMATE.start_main_~end~0#1.offset|)))) (store .cse3 .cse4 (store (store (select .cse3 .cse4) v_subst_1 0) .cse5 0))) |c_ULTIMATE.start_main_~list~0#1.base|) .cse7) 12) (select |c_#length| (select (select (store .cse8 .cse4 (store (store (select .cse8 .cse4) v_subst_1 0) .cse5 0)) |c_ULTIMATE.start_main_~list~0#1.base|) .cse7)))))))) is different from false [2021-11-23 13:11:50,776 WARN L227 SmtUtils]: Spent 6.12s on a formula simplification that was a NOOP. DAG size: 53 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 13:11:52,805 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|ULTIMATE.start_main_~end~0#1.offset| Int) (|ULTIMATE.start_main_#t~mem11#1.offset| Int) (v_subst_2 Int)) (<= 0 (+ (select (select (let ((.cse3 (+ |ULTIMATE.start_main_#t~mem11#1.offset| 4))) (let ((.cse0 (let ((.cse4 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~end~0#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset| |c_ULTIMATE.start_main_#t~malloc10#1.offset|)))) (store .cse4 |c_ULTIMATE.start_main_#t~malloc10#1.base| (store (select .cse4 |c_ULTIMATE.start_main_#t~malloc10#1.base|) .cse3 |ULTIMATE.start_main_~end~0#1.offset|)))) (.cse1 (select (select (let ((.cse2 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset| |c_ULTIMATE.start_main_#t~malloc10#1.base|)))) (store .cse2 |c_ULTIMATE.start_main_#t~malloc10#1.base| (store (select .cse2 |c_ULTIMATE.start_main_#t~malloc10#1.base|) .cse3 |c_ULTIMATE.start_main_~end~0#1.base|))) |c_ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|))) (store .cse0 .cse1 (store (store (select .cse0 .cse1) v_subst_2 0) (+ 8 v_subst_2) 0)))) |c_ULTIMATE.start_main_~list~0#1.base|) (+ |c_ULTIMATE.start_main_~list~0#1.offset| 8)) 8))) (forall ((|ULTIMATE.start_main_~end~0#1.offset| Int) (|ULTIMATE.start_main_#t~mem11#1.offset| Int) (v_subst_1 Int)) (let ((.cse9 (+ |ULTIMATE.start_main_#t~mem11#1.offset| 4))) (let ((.cse11 (let ((.cse12 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset| |c_ULTIMATE.start_main_#t~malloc10#1.base|)))) (store .cse12 |c_ULTIMATE.start_main_#t~malloc10#1.base| (store (select .cse12 |c_ULTIMATE.start_main_#t~malloc10#1.base|) .cse9 |c_ULTIMATE.start_main_~end~0#1.base|))))) (let ((.cse6 (select (select .cse11 |c_ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset|)) (.cse7 (+ 8 v_subst_1)) (.cse10 (+ |c_ULTIMATE.start_main_~list~0#1.offset| 8))) (<= (+ (select (select (let ((.cse5 (let ((.cse8 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~end~0#1.base| (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset| |c_ULTIMATE.start_main_#t~malloc10#1.offset|)))) (store .cse8 |c_ULTIMATE.start_main_#t~malloc10#1.base| (store (select .cse8 |c_ULTIMATE.start_main_#t~malloc10#1.base|) .cse9 |ULTIMATE.start_main_~end~0#1.offset|))))) (store .cse5 .cse6 (store (store (select .cse5 .cse6) v_subst_1 0) .cse7 0))) |c_ULTIMATE.start_main_~list~0#1.base|) .cse10) 12) (select |c_#length| (select (select (store .cse11 .cse6 (store (store (select .cse11 .cse6) v_subst_1 0) .cse7 0)) |c_ULTIMATE.start_main_~list~0#1.base|) .cse10)))))))) is different from false [2021-11-23 13:13:53,113 INFO L354 Elim1Store]: treesize reduction 658, result has 26.3 percent of original size [2021-11-23 13:13:53,114 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 10 case distinctions, treesize of input 4322927 treesize of output 4093785