./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 aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeb962a8-df25-49a5-ad40-2e56f1ef9931/bin/uautomizer-w2VwFs6gM0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeb962a8-df25-49a5-ad40-2e56f1ef9931/bin/uautomizer-w2VwFs6gM0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeb962a8-df25-49a5-ad40-2e56f1ef9931/bin/uautomizer-w2VwFs6gM0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeb962a8-df25-49a5-ad40-2e56f1ef9931/bin/uautomizer-w2VwFs6gM0/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/forester-heap/dll-01-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeb962a8-df25-49a5-ad40-2e56f1ef9931/bin/uautomizer-w2VwFs6gM0/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeb962a8-df25-49a5-ad40-2e56f1ef9931/bin/uautomizer-w2VwFs6gM0 --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-aef121e [2021-11-22 16:16:21,898 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 16:16:21,901 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 16:16:21,957 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 16:16:21,958 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 16:16:21,963 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 16:16:21,965 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 16:16:21,970 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 16:16:21,973 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 16:16:21,981 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 16:16:21,982 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 16:16:21,985 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 16:16:21,985 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 16:16:21,988 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 16:16:21,991 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 16:16:22,000 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 16:16:22,002 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 16:16:22,003 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 16:16:22,006 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 16:16:22,013 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 16:16:22,015 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 16:16:22,017 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 16:16:22,021 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 16:16:22,022 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 16:16:22,028 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 16:16:22,028 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 16:16:22,029 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 16:16:22,030 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 16:16:22,031 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 16:16:22,033 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 16:16:22,033 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 16:16:22,034 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 16:16:22,036 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 16:16:22,037 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 16:16:22,039 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 16:16:22,039 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 16:16:22,040 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 16:16:22,040 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 16:16:22,041 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 16:16:22,042 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 16:16:22,042 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 16:16:22,043 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeb962a8-df25-49a5-ad40-2e56f1ef9931/bin/uautomizer-w2VwFs6gM0/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-11-22 16:16:22,085 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 16:16:22,085 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 16:16:22,086 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 16:16:22,092 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 16:16:22,094 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 16:16:22,095 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 16:16:22,095 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 16:16:22,095 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 16:16:22,095 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-22 16:16:22,096 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-22 16:16:22,097 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 16:16:22,097 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-22 16:16:22,097 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 16:16:22,098 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-22 16:16:22,098 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-22 16:16:22,098 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-22 16:16:22,098 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 16:16:22,098 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-22 16:16:22,099 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-22 16:16:22,099 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 16:16:22,099 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 16:16:22,099 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 16:16:22,100 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 16:16:22,100 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 16:16:22,100 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 16:16:22,100 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 16:16:22,101 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-22 16:16:22,101 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 16:16:22,101 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 16:16:22,103 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_eeb962a8-df25-49a5-ad40-2e56f1ef9931/bin/uautomizer-w2VwFs6gM0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeb962a8-df25-49a5-ad40-2e56f1ef9931/bin/uautomizer-w2VwFs6gM0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 652acbc8fb2d659424086f7ee4bd5fc2f45ff1d49f46cde68db4fdee1ed0638e [2021-11-22 16:16:22,369 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 16:16:22,397 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 16:16:22,399 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 16:16:22,401 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 16:16:22,402 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 16:16:22,404 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeb962a8-df25-49a5-ad40-2e56f1ef9931/bin/uautomizer-w2VwFs6gM0/../../sv-benchmarks/c/forester-heap/dll-01-2.i [2021-11-22 16:16:22,482 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeb962a8-df25-49a5-ad40-2e56f1ef9931/bin/uautomizer-w2VwFs6gM0/data/bd0259c3c/4f7971c36ca0449b91936643f44fb2cb/FLAG7bd6a0b65 [2021-11-22 16:16:23,076 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 16:16:23,077 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeb962a8-df25-49a5-ad40-2e56f1ef9931/sv-benchmarks/c/forester-heap/dll-01-2.i [2021-11-22 16:16:23,090 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeb962a8-df25-49a5-ad40-2e56f1ef9931/bin/uautomizer-w2VwFs6gM0/data/bd0259c3c/4f7971c36ca0449b91936643f44fb2cb/FLAG7bd6a0b65 [2021-11-22 16:16:23,350 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeb962a8-df25-49a5-ad40-2e56f1ef9931/bin/uautomizer-w2VwFs6gM0/data/bd0259c3c/4f7971c36ca0449b91936643f44fb2cb [2021-11-22 16:16:23,352 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 16:16:23,353 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 16:16:23,355 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 16:16:23,357 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 16:16:23,360 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 16:16:23,360 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 04:16:23" (1/1) ... [2021-11-22 16:16:23,361 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43024844 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:16:23, skipping insertion in model container [2021-11-22 16:16:23,361 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 04:16:23" (1/1) ... [2021-11-22 16:16:23,369 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 16:16:23,407 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 16:16:23,756 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_eeb962a8-df25-49a5-ad40-2e56f1ef9931/sv-benchmarks/c/forester-heap/dll-01-2.i[22080,22093] [2021-11-22 16:16:23,763 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_eeb962a8-df25-49a5-ad40-2e56f1ef9931/sv-benchmarks/c/forester-heap/dll-01-2.i[22353,22366] [2021-11-22 16:16:23,765 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_eeb962a8-df25-49a5-ad40-2e56f1ef9931/sv-benchmarks/c/forester-heap/dll-01-2.i[22587,22600] [2021-11-22 16:16:23,767 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_eeb962a8-df25-49a5-ad40-2e56f1ef9931/sv-benchmarks/c/forester-heap/dll-01-2.i[22657,22670] [2021-11-22 16:16:23,770 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_eeb962a8-df25-49a5-ad40-2e56f1ef9931/sv-benchmarks/c/forester-heap/dll-01-2.i[22924,22937] [2021-11-22 16:16:23,772 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_eeb962a8-df25-49a5-ad40-2e56f1ef9931/sv-benchmarks/c/forester-heap/dll-01-2.i[23032,23045] [2021-11-22 16:16:23,774 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_eeb962a8-df25-49a5-ad40-2e56f1ef9931/sv-benchmarks/c/forester-heap/dll-01-2.i[23263,23276] [2021-11-22 16:16:23,775 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_eeb962a8-df25-49a5-ad40-2e56f1ef9931/sv-benchmarks/c/forester-heap/dll-01-2.i[23343,23356] [2021-11-22 16:16:23,777 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_eeb962a8-df25-49a5-ad40-2e56f1ef9931/sv-benchmarks/c/forester-heap/dll-01-2.i[23422,23435] [2021-11-22 16:16:23,778 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_eeb962a8-df25-49a5-ad40-2e56f1ef9931/sv-benchmarks/c/forester-heap/dll-01-2.i[23512,23525] [2021-11-22 16:16:23,780 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_eeb962a8-df25-49a5-ad40-2e56f1ef9931/sv-benchmarks/c/forester-heap/dll-01-2.i[23690,23703] [2021-11-22 16:16:23,782 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_eeb962a8-df25-49a5-ad40-2e56f1ef9931/sv-benchmarks/c/forester-heap/dll-01-2.i[23768,23781] [2021-11-22 16:16:23,783 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_eeb962a8-df25-49a5-ad40-2e56f1ef9931/sv-benchmarks/c/forester-heap/dll-01-2.i[23845,23858] [2021-11-22 16:16:23,788 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 16:16:23,806 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 16:16:23,862 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_eeb962a8-df25-49a5-ad40-2e56f1ef9931/sv-benchmarks/c/forester-heap/dll-01-2.i[22080,22093] [2021-11-22 16:16:23,869 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_eeb962a8-df25-49a5-ad40-2e56f1ef9931/sv-benchmarks/c/forester-heap/dll-01-2.i[22353,22366] [2021-11-22 16:16:23,871 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_eeb962a8-df25-49a5-ad40-2e56f1ef9931/sv-benchmarks/c/forester-heap/dll-01-2.i[22587,22600] [2021-11-22 16:16:23,872 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_eeb962a8-df25-49a5-ad40-2e56f1ef9931/sv-benchmarks/c/forester-heap/dll-01-2.i[22657,22670] [2021-11-22 16:16:23,884 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_eeb962a8-df25-49a5-ad40-2e56f1ef9931/sv-benchmarks/c/forester-heap/dll-01-2.i[22924,22937] [2021-11-22 16:16:23,885 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_eeb962a8-df25-49a5-ad40-2e56f1ef9931/sv-benchmarks/c/forester-heap/dll-01-2.i[23032,23045] [2021-11-22 16:16:23,887 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_eeb962a8-df25-49a5-ad40-2e56f1ef9931/sv-benchmarks/c/forester-heap/dll-01-2.i[23263,23276] [2021-11-22 16:16:23,888 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_eeb962a8-df25-49a5-ad40-2e56f1ef9931/sv-benchmarks/c/forester-heap/dll-01-2.i[23343,23356] [2021-11-22 16:16:23,889 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_eeb962a8-df25-49a5-ad40-2e56f1ef9931/sv-benchmarks/c/forester-heap/dll-01-2.i[23422,23435] [2021-11-22 16:16:23,891 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_eeb962a8-df25-49a5-ad40-2e56f1ef9931/sv-benchmarks/c/forester-heap/dll-01-2.i[23512,23525] [2021-11-22 16:16:23,898 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_eeb962a8-df25-49a5-ad40-2e56f1ef9931/sv-benchmarks/c/forester-heap/dll-01-2.i[23690,23703] [2021-11-22 16:16:23,900 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_eeb962a8-df25-49a5-ad40-2e56f1ef9931/sv-benchmarks/c/forester-heap/dll-01-2.i[23768,23781] [2021-11-22 16:16:23,901 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_eeb962a8-df25-49a5-ad40-2e56f1ef9931/sv-benchmarks/c/forester-heap/dll-01-2.i[23845,23858] [2021-11-22 16:16:23,904 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 16:16:23,943 INFO L208 MainTranslator]: Completed translation [2021-11-22 16:16:23,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:16:23 WrapperNode [2021-11-22 16:16:23,945 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 16:16:23,947 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 16:16:23,948 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 16:16:23,948 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 16:16:23,957 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:16:23" (1/1) ... [2021-11-22 16:16:23,986 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:16:23" (1/1) ... [2021-11-22 16:16:24,035 INFO L137 Inliner]: procedures = 119, calls = 45, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 231 [2021-11-22 16:16:24,035 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 16:16:24,037 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 16:16:24,037 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 16:16:24,037 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 16:16:24,046 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:16:23" (1/1) ... [2021-11-22 16:16:24,047 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:16:23" (1/1) ... [2021-11-22 16:16:24,072 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:16:23" (1/1) ... [2021-11-22 16:16:24,072 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:16:23" (1/1) ... [2021-11-22 16:16:24,084 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:16:23" (1/1) ... [2021-11-22 16:16:24,092 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:16:23" (1/1) ... [2021-11-22 16:16:24,095 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:16:23" (1/1) ... [2021-11-22 16:16:24,099 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 16:16:24,100 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 16:16:24,101 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 16:16:24,101 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 16:16:24,102 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:16:23" (1/1) ... [2021-11-22 16:16:24,126 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 16:16:24,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeb962a8-df25-49a5-ad40-2e56f1ef9931/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 16:16:24,148 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeb962a8-df25-49a5-ad40-2e56f1ef9931/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-22 16:16:24,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeb962a8-df25-49a5-ad40-2e56f1ef9931/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-22 16:16:24,209 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-22 16:16:24,209 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 16:16:24,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-22 16:16:24,209 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-22 16:16:24,209 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-22 16:16:24,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 16:16:24,210 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 16:16:24,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 16:16:24,380 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 16:16:24,382 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 16:16:24,951 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 16:16:24,962 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 16:16:24,963 INFO L301 CfgBuilder]: Removed 30 assume(true) statements. [2021-11-22 16:16:24,965 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 04:16:24 BoogieIcfgContainer [2021-11-22 16:16:24,965 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 16:16:24,987 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-22 16:16:24,987 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-22 16:16:24,992 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-22 16:16:24,993 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 04:16:23" (1/3) ... [2021-11-22 16:16:24,994 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@674dcea7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 04:16:24, skipping insertion in model container [2021-11-22 16:16:24,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:16:23" (2/3) ... [2021-11-22 16:16:24,994 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@674dcea7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 04:16:24, skipping insertion in model container [2021-11-22 16:16:24,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 04:16:24" (3/3) ... [2021-11-22 16:16:24,996 INFO L111 eAbstractionObserver]: Analyzing ICFG dll-01-2.i [2021-11-22 16:16:25,002 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-22 16:16:25,002 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 86 error locations. [2021-11-22 16:16:25,045 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-22 16:16:25,051 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 [2021-11-22 16:16:25,051 INFO L340 AbstractCegarLoop]: Starting to check reachability of 86 error locations. [2021-11-22 16:16:25,071 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) [2021-11-22 16:16:25,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-22 16:16:25,076 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:16:25,077 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-11-22 16:16:25,077 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-22 16:16:25,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:16:25,083 INFO L85 PathProgramCache]: Analyzing trace with hash 29857, now seen corresponding path program 1 times [2021-11-22 16:16:25,090 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:16:25,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030962680] [2021-11-22 16:16:25,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:16:25,092 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:16:25,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:16:25,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:16:25,241 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:16:25,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030962680] [2021-11-22 16:16:25,244 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030962680] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:16:25,244 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:16:25,244 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-22 16:16:25,246 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780839173] [2021-11-22 16:16:25,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:16:25,252 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 16:16:25,253 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:16:25,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 16:16:25,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 16:16:25,296 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) [2021-11-22 16:16:25,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:16:25,551 INFO L93 Difference]: Finished difference Result 201 states and 210 transitions. [2021-11-22 16:16:25,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 16:16:25,553 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 [2021-11-22 16:16:25,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:16:25,568 INFO L225 Difference]: With dead ends: 201 [2021-11-22 16:16:25,569 INFO L226 Difference]: Without dead ends: 197 [2021-11-22 16:16:25,571 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 [2021-11-22 16:16:25,576 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 [2021-11-22 16:16:25,579 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] [2021-11-22 16:16:25,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2021-11-22 16:16:25,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 193. [2021-11-22 16:16:25,620 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) [2021-11-22 16:16:25,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 204 transitions. [2021-11-22 16:16:25,624 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 204 transitions. Word has length 3 [2021-11-22 16:16:25,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:16:25,625 INFO L470 AbstractCegarLoop]: Abstraction has 193 states and 204 transitions. [2021-11-22 16:16:25,625 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) [2021-11-22 16:16:25,625 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 204 transitions. [2021-11-22 16:16:25,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-22 16:16:25,626 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:16:25,626 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-11-22 16:16:25,626 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-22 16:16:25,626 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-22 16:16:25,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:16:25,627 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2021-11-22 16:16:25,628 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:16:25,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800188956] [2021-11-22 16:16:25,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:16:25,628 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:16:25,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:16:25,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:16:25,678 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:16:25,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800188956] [2021-11-22 16:16:25,678 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800188956] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:16:25,678 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:16:25,679 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-22 16:16:25,679 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447452580] [2021-11-22 16:16:25,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:16:25,680 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 16:16:25,680 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:16:25,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 16:16:25,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 16:16:25,682 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) [2021-11-22 16:16:25,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:16:25,869 INFO L93 Difference]: Finished difference Result 222 states and 232 transitions. [2021-11-22 16:16:25,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 16:16:25,869 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 [2021-11-22 16:16:25,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:16:25,871 INFO L225 Difference]: With dead ends: 222 [2021-11-22 16:16:25,871 INFO L226 Difference]: Without dead ends: 222 [2021-11-22 16:16:25,872 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 [2021-11-22 16:16:25,873 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 [2021-11-22 16:16:25,874 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] [2021-11-22 16:16:25,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2021-11-22 16:16:25,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 202. [2021-11-22 16:16:25,886 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) [2021-11-22 16:16:25,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 224 transitions. [2021-11-22 16:16:25,889 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 224 transitions. Word has length 3 [2021-11-22 16:16:25,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:16:25,889 INFO L470 AbstractCegarLoop]: Abstraction has 202 states and 224 transitions. [2021-11-22 16:16:25,889 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) [2021-11-22 16:16:25,890 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 224 transitions. [2021-11-22 16:16:25,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-22 16:16:25,890 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:16:25,890 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-22 16:16:25,890 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-22 16:16:25,891 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)] === [2021-11-22 16:16:25,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:16:25,892 INFO L85 PathProgramCache]: Analyzing trace with hash 889446311, now seen corresponding path program 1 times [2021-11-22 16:16:25,892 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:16:25,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946289198] [2021-11-22 16:16:25,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:16:25,892 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:16:25,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:16:25,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:16:25,950 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:16:25,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946289198] [2021-11-22 16:16:25,951 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946289198] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:16:25,951 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:16:25,951 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 16:16:25,951 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814387330] [2021-11-22 16:16:25,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:16:25,952 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 16:16:25,952 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:16:25,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 16:16:25,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 16:16:25,953 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) [2021-11-22 16:16:26,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:16:26,010 INFO L93 Difference]: Finished difference Result 217 states and 227 transitions. [2021-11-22 16:16:26,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 16:16:26,010 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 [2021-11-22 16:16:26,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:16:26,012 INFO L225 Difference]: With dead ends: 217 [2021-11-22 16:16:26,012 INFO L226 Difference]: Without dead ends: 217 [2021-11-22 16:16:26,012 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 [2021-11-22 16:16:26,014 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, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 16:16:26,015 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [177 Valid, 204 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 16:16:26,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2021-11-22 16:16:26,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 200. [2021-11-22 16:16:26,041 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) [2021-11-22 16:16:26,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 221 transitions. [2021-11-22 16:16:26,043 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 221 transitions. Word has length 6 [2021-11-22 16:16:26,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:16:26,043 INFO L470 AbstractCegarLoop]: Abstraction has 200 states and 221 transitions. [2021-11-22 16:16:26,044 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) [2021-11-22 16:16:26,044 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 221 transitions. [2021-11-22 16:16:26,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-22 16:16:26,044 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:16:26,045 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:16:26,045 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-22 16:16:26,045 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-22 16:16:26,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:16:26,046 INFO L85 PathProgramCache]: Analyzing trace with hash 2020777177, now seen corresponding path program 1 times [2021-11-22 16:16:26,046 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:16:26,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157346475] [2021-11-22 16:16:26,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:16:26,047 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:16:26,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:16:26,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:16:26,117 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:16:26,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157346475] [2021-11-22 16:16:26,118 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157346475] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:16:26,118 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:16:26,118 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-22 16:16:26,118 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335686994] [2021-11-22 16:16:26,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:16:26,119 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-22 16:16:26,119 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:16:26,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-22 16:16:26,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-22 16:16:26,120 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) [2021-11-22 16:16:26,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:16:26,318 INFO L93 Difference]: Finished difference Result 199 states and 220 transitions. [2021-11-22 16:16:26,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 16:16:26,319 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 [2021-11-22 16:16:26,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:16:26,320 INFO L225 Difference]: With dead ends: 199 [2021-11-22 16:16:26,320 INFO L226 Difference]: Without dead ends: 199 [2021-11-22 16:16:26,321 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 [2021-11-22 16:16:26,323 INFO L933 BasicCegarLoop]: 185 mSDtfsCounter, 4 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2021-11-22 16:16:26,324 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] [2021-11-22 16:16:26,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2021-11-22 16:16:26,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 199. [2021-11-22 16:16:26,335 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) [2021-11-22 16:16:26,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 220 transitions. [2021-11-22 16:16:26,336 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 220 transitions. Word has length 12 [2021-11-22 16:16:26,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:16:26,337 INFO L470 AbstractCegarLoop]: Abstraction has 199 states and 220 transitions. [2021-11-22 16:16:26,337 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) [2021-11-22 16:16:26,337 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 220 transitions. [2021-11-22 16:16:26,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-22 16:16:26,338 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:16:26,338 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:16:26,338 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-22 16:16:26,339 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr12REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-22 16:16:26,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:16:26,340 INFO L85 PathProgramCache]: Analyzing trace with hash 2020777178, now seen corresponding path program 1 times [2021-11-22 16:16:26,340 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:16:26,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311381893] [2021-11-22 16:16:26,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:16:26,341 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:16:26,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:16:26,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:16:26,431 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:16:26,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311381893] [2021-11-22 16:16:26,432 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311381893] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:16:26,432 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:16:26,432 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-22 16:16:26,433 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573508305] [2021-11-22 16:16:26,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:16:26,433 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-22 16:16:26,434 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:16:26,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-22 16:16:26,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-22 16:16:26,435 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) [2021-11-22 16:16:26,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:16:26,655 INFO L93 Difference]: Finished difference Result 198 states and 219 transitions. [2021-11-22 16:16:26,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 16:16:26,655 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 [2021-11-22 16:16:26,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:16:26,657 INFO L225 Difference]: With dead ends: 198 [2021-11-22 16:16:26,657 INFO L226 Difference]: Without dead ends: 198 [2021-11-22 16:16:26,657 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 [2021-11-22 16:16:26,658 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 [2021-11-22 16:16:26,659 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] [2021-11-22 16:16:26,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2021-11-22 16:16:26,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2021-11-22 16:16:26,674 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) [2021-11-22 16:16:26,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 219 transitions. [2021-11-22 16:16:26,677 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 219 transitions. Word has length 12 [2021-11-22 16:16:26,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:16:26,677 INFO L470 AbstractCegarLoop]: Abstraction has 198 states and 219 transitions. [2021-11-22 16:16:26,677 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) [2021-11-22 16:16:26,677 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 219 transitions. [2021-11-22 16:16:26,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-22 16:16:26,678 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:16:26,678 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:16:26,678 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-22 16:16:26,678 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)] === [2021-11-22 16:16:26,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:16:26,679 INFO L85 PathProgramCache]: Analyzing trace with hash 373192235, now seen corresponding path program 1 times [2021-11-22 16:16:26,679 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:16:26,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842109997] [2021-11-22 16:16:26,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:16:26,679 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:16:26,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:16:26,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:16:26,717 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:16:26,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842109997] [2021-11-22 16:16:26,717 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842109997] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:16:26,717 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:16:26,718 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 16:16:26,718 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480578109] [2021-11-22 16:16:26,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:16:26,718 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 16:16:26,718 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:16:26,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 16:16:26,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 16:16:26,719 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) [2021-11-22 16:16:26,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:16:26,729 INFO L93 Difference]: Finished difference Result 199 states and 220 transitions. [2021-11-22 16:16:26,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 16:16:26,730 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 [2021-11-22 16:16:26,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:16:26,731 INFO L225 Difference]: With dead ends: 199 [2021-11-22 16:16:26,731 INFO L226 Difference]: Without dead ends: 199 [2021-11-22 16:16:26,731 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 [2021-11-22 16:16:26,732 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 [2021-11-22 16:16:26,733 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] [2021-11-22 16:16:26,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2021-11-22 16:16:26,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 199. [2021-11-22 16:16:26,739 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) [2021-11-22 16:16:26,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 220 transitions. [2021-11-22 16:16:26,741 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 220 transitions. Word has length 14 [2021-11-22 16:16:26,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:16:26,741 INFO L470 AbstractCegarLoop]: Abstraction has 199 states and 220 transitions. [2021-11-22 16:16:26,741 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) [2021-11-22 16:16:26,741 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 220 transitions. [2021-11-22 16:16:26,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-22 16:16:26,742 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:16:26,742 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:16:26,742 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-22 16:16:26,742 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-22 16:16:26,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:16:26,743 INFO L85 PathProgramCache]: Analyzing trace with hash -1583692102, now seen corresponding path program 1 times [2021-11-22 16:16:26,743 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:16:26,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334277062] [2021-11-22 16:16:26,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:16:26,744 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:16:26,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:16:26,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:16:26,959 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:16:26,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334277062] [2021-11-22 16:16:26,960 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334277062] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:16:26,960 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:16:26,960 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-22 16:16:26,960 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981453333] [2021-11-22 16:16:26,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:16:26,961 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-22 16:16:26,961 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:16:26,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-22 16:16:26,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-22 16:16:26,962 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) [2021-11-22 16:16:27,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:16:27,253 INFO L93 Difference]: Finished difference Result 198 states and 219 transitions. [2021-11-22 16:16:27,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-22 16:16:27,253 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 [2021-11-22 16:16:27,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:16:27,255 INFO L225 Difference]: With dead ends: 198 [2021-11-22 16:16:27,255 INFO L226 Difference]: Without dead ends: 198 [2021-11-22 16:16:27,255 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2021-11-22 16:16:27,256 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 [2021-11-22 16:16:27,257 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] [2021-11-22 16:16:27,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2021-11-22 16:16:27,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2021-11-22 16:16:27,261 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) [2021-11-22 16:16:27,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 219 transitions. [2021-11-22 16:16:27,267 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 219 transitions. Word has length 15 [2021-11-22 16:16:27,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:16:27,267 INFO L470 AbstractCegarLoop]: Abstraction has 198 states and 219 transitions. [2021-11-22 16:16:27,267 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) [2021-11-22 16:16:27,268 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 219 transitions. [2021-11-22 16:16:27,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-22 16:16:27,269 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:16:27,270 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:16:27,270 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-22 16:16:27,270 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr16REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-22 16:16:27,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:16:27,273 INFO L85 PathProgramCache]: Analyzing trace with hash -1583692101, now seen corresponding path program 1 times [2021-11-22 16:16:27,273 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:16:27,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067259722] [2021-11-22 16:16:27,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:16:27,274 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:16:27,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:16:27,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:16:27,434 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:16:27,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067259722] [2021-11-22 16:16:27,434 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067259722] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:16:27,435 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:16:27,435 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-22 16:16:27,435 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556835555] [2021-11-22 16:16:27,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:16:27,436 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-22 16:16:27,436 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:16:27,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-22 16:16:27,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-22 16:16:27,437 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) [2021-11-22 16:16:27,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:16:27,942 INFO L93 Difference]: Finished difference Result 197 states and 218 transitions. [2021-11-22 16:16:27,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-22 16:16:27,943 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 [2021-11-22 16:16:27,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:16:27,944 INFO L225 Difference]: With dead ends: 197 [2021-11-22 16:16:27,944 INFO L226 Difference]: Without dead ends: 197 [2021-11-22 16:16:27,945 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2021-11-22 16:16:27,946 INFO L933 BasicCegarLoop]: 121 mSDtfsCounter, 169 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 532 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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 [2021-11-22 16:16:27,946 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] [2021-11-22 16:16:27,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2021-11-22 16:16:27,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 197. [2021-11-22 16:16:27,951 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) [2021-11-22 16:16:27,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 218 transitions. [2021-11-22 16:16:27,952 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 218 transitions. Word has length 15 [2021-11-22 16:16:27,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:16:27,953 INFO L470 AbstractCegarLoop]: Abstraction has 197 states and 218 transitions. [2021-11-22 16:16:27,953 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) [2021-11-22 16:16:27,953 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 218 transitions. [2021-11-22 16:16:27,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-22 16:16:27,957 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:16:27,957 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:16:27,959 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-22 16:16:27,960 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)] === [2021-11-22 16:16:27,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:16:27,962 INFO L85 PathProgramCache]: Analyzing trace with hash -2137878992, now seen corresponding path program 1 times [2021-11-22 16:16:27,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:16:27,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828112391] [2021-11-22 16:16:27,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:16:27,963 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:16:27,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:16:28,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:16:28,089 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:16:28,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828112391] [2021-11-22 16:16:28,089 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828112391] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:16:28,089 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:16:28,089 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-22 16:16:28,089 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314544344] [2021-11-22 16:16:28,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:16:28,091 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-22 16:16:28,091 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:16:28,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-22 16:16:28,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-22 16:16:28,093 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) [2021-11-22 16:16:28,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:16:28,351 INFO L93 Difference]: Finished difference Result 289 states and 316 transitions. [2021-11-22 16:16:28,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-22 16:16:28,352 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 [2021-11-22 16:16:28,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:16:28,354 INFO L225 Difference]: With dead ends: 289 [2021-11-22 16:16:28,354 INFO L226 Difference]: Without dead ends: 289 [2021-11-22 16:16:28,354 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 [2021-11-22 16:16:28,355 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 [2021-11-22 16:16:28,355 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] [2021-11-22 16:16:28,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2021-11-22 16:16:28,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 194. [2021-11-22 16:16:28,360 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) [2021-11-22 16:16:28,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 215 transitions. [2021-11-22 16:16:28,361 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 215 transitions. Word has length 16 [2021-11-22 16:16:28,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:16:28,361 INFO L470 AbstractCegarLoop]: Abstraction has 194 states and 215 transitions. [2021-11-22 16:16:28,362 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) [2021-11-22 16:16:28,362 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 215 transitions. [2021-11-22 16:16:28,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-22 16:16:28,362 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:16:28,363 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:16:28,363 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-22 16:16:28,363 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr22REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-22 16:16:28,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:16:28,363 INFO L85 PathProgramCache]: Analyzing trace with hash 1339025717, now seen corresponding path program 1 times [2021-11-22 16:16:28,363 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:16:28,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272653937] [2021-11-22 16:16:28,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:16:28,364 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:16:28,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:16:28,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:16:28,411 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:16:28,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272653937] [2021-11-22 16:16:28,411 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272653937] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:16:28,412 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:16:28,412 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-22 16:16:28,412 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737117138] [2021-11-22 16:16:28,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:16:28,412 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-22 16:16:28,413 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:16:28,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-22 16:16:28,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-22 16:16:28,413 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) [2021-11-22 16:16:28,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:16:28,559 INFO L93 Difference]: Finished difference Result 290 states and 316 transitions. [2021-11-22 16:16:28,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 16:16:28,560 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 [2021-11-22 16:16:28,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:16:28,561 INFO L225 Difference]: With dead ends: 290 [2021-11-22 16:16:28,561 INFO L226 Difference]: Without dead ends: 290 [2021-11-22 16:16:28,562 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 [2021-11-22 16:16:28,562 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 [2021-11-22 16:16:28,563 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] [2021-11-22 16:16:28,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2021-11-22 16:16:28,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 197. [2021-11-22 16:16:28,568 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) [2021-11-22 16:16:28,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 218 transitions. [2021-11-22 16:16:28,569 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 218 transitions. Word has length 18 [2021-11-22 16:16:28,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:16:28,569 INFO L470 AbstractCegarLoop]: Abstraction has 197 states and 218 transitions. [2021-11-22 16:16:28,569 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) [2021-11-22 16:16:28,569 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 218 transitions. [2021-11-22 16:16:28,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-22 16:16:28,570 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:16:28,570 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:16:28,570 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-22 16:16:28,570 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr22REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-22 16:16:28,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:16:28,571 INFO L85 PathProgramCache]: Analyzing trace with hash -1029802310, now seen corresponding path program 1 times [2021-11-22 16:16:28,571 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:16:28,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309750979] [2021-11-22 16:16:28,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:16:28,572 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:16:28,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:16:28,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:16:28,608 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:16:28,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309750979] [2021-11-22 16:16:28,608 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309750979] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:16:28,608 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:16:28,608 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 16:16:28,609 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395387926] [2021-11-22 16:16:28,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:16:28,609 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 16:16:28,609 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:16:28,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 16:16:28,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 16:16:28,610 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) [2021-11-22 16:16:28,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:16:28,772 INFO L93 Difference]: Finished difference Result 191 states and 211 transitions. [2021-11-22 16:16:28,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-22 16:16:28,772 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 [2021-11-22 16:16:28,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:16:28,774 INFO L225 Difference]: With dead ends: 191 [2021-11-22 16:16:28,774 INFO L226 Difference]: Without dead ends: 191 [2021-11-22 16:16:28,774 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 [2021-11-22 16:16:28,775 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, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 16:16:28,776 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [257 Valid, 118 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 16:16:28,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2021-11-22 16:16:28,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 187. [2021-11-22 16:16:28,780 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) [2021-11-22 16:16:28,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 208 transitions. [2021-11-22 16:16:28,781 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 208 transitions. Word has length 20 [2021-11-22 16:16:28,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:16:28,782 INFO L470 AbstractCegarLoop]: Abstraction has 187 states and 208 transitions. [2021-11-22 16:16:28,782 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) [2021-11-22 16:16:28,782 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 208 transitions. [2021-11-22 16:16:28,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-22 16:16:28,783 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:16:28,783 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] [2021-11-22 16:16:28,783 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-22 16:16:28,783 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr23REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-22 16:16:28,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:16:28,784 INFO L85 PathProgramCache]: Analyzing trace with hash -1029802309, now seen corresponding path program 1 times [2021-11-22 16:16:28,784 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:16:28,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582726274] [2021-11-22 16:16:28,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:16:28,785 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:16:28,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:16:28,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:16:28,837 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:16:28,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582726274] [2021-11-22 16:16:28,837 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582726274] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:16:28,838 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:16:28,838 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 16:16:28,838 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386656717] [2021-11-22 16:16:28,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:16:28,838 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 16:16:28,839 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:16:28,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 16:16:28,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 16:16:28,839 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) [2021-11-22 16:16:29,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:16:29,035 INFO L93 Difference]: Finished difference Result 248 states and 262 transitions. [2021-11-22 16:16:29,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-22 16:16:29,036 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 [2021-11-22 16:16:29,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:16:29,037 INFO L225 Difference]: With dead ends: 248 [2021-11-22 16:16:29,037 INFO L226 Difference]: Without dead ends: 248 [2021-11-22 16:16:29,038 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 [2021-11-22 16:16:29,038 INFO L933 BasicCegarLoop]: 103 mSDtfsCounter, 244 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2021-11-22 16:16:29,038 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] [2021-11-22 16:16:29,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2021-11-22 16:16:29,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 211. [2021-11-22 16:16:29,043 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) [2021-11-22 16:16:29,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 246 transitions. [2021-11-22 16:16:29,045 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 246 transitions. Word has length 20 [2021-11-22 16:16:29,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:16:29,045 INFO L470 AbstractCegarLoop]: Abstraction has 211 states and 246 transitions. [2021-11-22 16:16:29,045 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) [2021-11-22 16:16:29,045 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 246 transitions. [2021-11-22 16:16:29,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-22 16:16:29,046 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:16:29,046 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] [2021-11-22 16:16:29,046 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-22 16:16:29,047 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)] === [2021-11-22 16:16:29,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:16:29,047 INFO L85 PathProgramCache]: Analyzing trace with hash -1797484881, now seen corresponding path program 1 times [2021-11-22 16:16:29,047 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:16:29,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116533138] [2021-11-22 16:16:29,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:16:29,048 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:16:29,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:16:29,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:16:29,079 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:16:29,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116533138] [2021-11-22 16:16:29,079 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116533138] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:16:29,080 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:16:29,080 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-22 16:16:29,080 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654693772] [2021-11-22 16:16:29,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:16:29,080 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 16:16:29,080 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:16:29,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 16:16:29,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-22 16:16:29,081 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) [2021-11-22 16:16:29,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:16:29,191 INFO L93 Difference]: Finished difference Result 243 states and 256 transitions. [2021-11-22 16:16:29,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-22 16:16:29,191 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 [2021-11-22 16:16:29,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:16:29,193 INFO L225 Difference]: With dead ends: 243 [2021-11-22 16:16:29,193 INFO L226 Difference]: Without dead ends: 243 [2021-11-22 16:16:29,193 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 [2021-11-22 16:16:29,193 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 [2021-11-22 16:16:29,194 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] [2021-11-22 16:16:29,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2021-11-22 16:16:29,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 209. [2021-11-22 16:16:29,198 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) [2021-11-22 16:16:29,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 243 transitions. [2021-11-22 16:16:29,199 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 243 transitions. Word has length 22 [2021-11-22 16:16:29,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:16:29,200 INFO L470 AbstractCegarLoop]: Abstraction has 209 states and 243 transitions. [2021-11-22 16:16:29,200 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) [2021-11-22 16:16:29,200 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 243 transitions. [2021-11-22 16:16:29,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-22 16:16:29,201 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:16:29,201 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] [2021-11-22 16:16:29,201 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-22 16:16:29,201 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr26REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-22 16:16:29,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:16:29,202 INFO L85 PathProgramCache]: Analyzing trace with hash 110847663, now seen corresponding path program 1 times [2021-11-22 16:16:29,202 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:16:29,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675062412] [2021-11-22 16:16:29,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:16:29,202 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:16:29,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:16:29,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:16:29,244 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:16:29,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675062412] [2021-11-22 16:16:29,244 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675062412] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:16:29,244 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:16:29,244 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-22 16:16:29,244 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305380113] [2021-11-22 16:16:29,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:16:29,245 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-22 16:16:29,245 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:16:29,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-22 16:16:29,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-22 16:16:29,246 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) [2021-11-22 16:16:29,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:16:29,407 INFO L93 Difference]: Finished difference Result 208 states and 241 transitions. [2021-11-22 16:16:29,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 16:16:29,407 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 [2021-11-22 16:16:29,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:16:29,408 INFO L225 Difference]: With dead ends: 208 [2021-11-22 16:16:29,409 INFO L226 Difference]: Without dead ends: 208 [2021-11-22 16:16:29,409 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 [2021-11-22 16:16:29,410 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, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 16:16:29,410 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 469 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 16:16:29,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2021-11-22 16:16:29,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 208. [2021-11-22 16:16:29,414 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) [2021-11-22 16:16:29,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 241 transitions. [2021-11-22 16:16:29,415 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 241 transitions. Word has length 23 [2021-11-22 16:16:29,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:16:29,416 INFO L470 AbstractCegarLoop]: Abstraction has 208 states and 241 transitions. [2021-11-22 16:16:29,416 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) [2021-11-22 16:16:29,416 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 241 transitions. [2021-11-22 16:16:29,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-22 16:16:29,416 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:16:29,417 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] [2021-11-22 16:16:29,417 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-22 16:16:29,417 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr27REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-22 16:16:29,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:16:29,417 INFO L85 PathProgramCache]: Analyzing trace with hash 110847664, now seen corresponding path program 1 times [2021-11-22 16:16:29,417 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:16:29,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152555381] [2021-11-22 16:16:29,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:16:29,418 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:16:29,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:16:29,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:16:29,470 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:16:29,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152555381] [2021-11-22 16:16:29,470 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152555381] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:16:29,470 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:16:29,470 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-22 16:16:29,470 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281312928] [2021-11-22 16:16:29,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:16:29,471 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-22 16:16:29,471 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:16:29,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-22 16:16:29,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-22 16:16:29,472 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) [2021-11-22 16:16:29,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:16:29,657 INFO L93 Difference]: Finished difference Result 207 states and 239 transitions. [2021-11-22 16:16:29,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 16:16:29,658 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 [2021-11-22 16:16:29,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:16:29,659 INFO L225 Difference]: With dead ends: 207 [2021-11-22 16:16:29,659 INFO L226 Difference]: Without dead ends: 207 [2021-11-22 16:16:29,660 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 [2021-11-22 16:16:29,660 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 [2021-11-22 16:16:29,661 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] [2021-11-22 16:16:29,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2021-11-22 16:16:29,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 207. [2021-11-22 16:16:29,665 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) [2021-11-22 16:16:29,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 239 transitions. [2021-11-22 16:16:29,666 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 239 transitions. Word has length 23 [2021-11-22 16:16:29,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:16:29,666 INFO L470 AbstractCegarLoop]: Abstraction has 207 states and 239 transitions. [2021-11-22 16:16:29,666 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) [2021-11-22 16:16:29,666 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 239 transitions. [2021-11-22 16:16:29,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-22 16:16:29,667 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:16:29,667 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] [2021-11-22 16:16:29,667 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-22 16:16:29,667 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr30REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-22 16:16:29,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:16:29,668 INFO L85 PathProgramCache]: Analyzing trace with hash -398547279, now seen corresponding path program 1 times [2021-11-22 16:16:29,668 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:16:29,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687251217] [2021-11-22 16:16:29,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:16:29,668 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:16:29,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:16:29,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:16:29,766 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:16:29,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687251217] [2021-11-22 16:16:29,766 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687251217] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:16:29,767 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:16:29,767 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-22 16:16:29,767 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478475176] [2021-11-22 16:16:29,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:16:29,767 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-22 16:16:29,767 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:16:29,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-22 16:16:29,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-22 16:16:29,768 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) [2021-11-22 16:16:30,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:16:30,127 INFO L93 Difference]: Finished difference Result 206 states and 238 transitions. [2021-11-22 16:16:30,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-22 16:16:30,127 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 [2021-11-22 16:16:30,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:16:30,129 INFO L225 Difference]: With dead ends: 206 [2021-11-22 16:16:30,129 INFO L226 Difference]: Without dead ends: 206 [2021-11-22 16:16:30,129 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 [2021-11-22 16:16:30,130 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 [2021-11-22 16:16:30,130 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] [2021-11-22 16:16:30,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2021-11-22 16:16:30,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 206. [2021-11-22 16:16:30,134 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) [2021-11-22 16:16:30,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 238 transitions. [2021-11-22 16:16:30,135 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 238 transitions. Word has length 27 [2021-11-22 16:16:30,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:16:30,135 INFO L470 AbstractCegarLoop]: Abstraction has 206 states and 238 transitions. [2021-11-22 16:16:30,136 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) [2021-11-22 16:16:30,136 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 238 transitions. [2021-11-22 16:16:30,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-22 16:16:30,136 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:16:30,137 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] [2021-11-22 16:16:30,137 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-22 16:16:30,137 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr31REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-22 16:16:30,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:16:30,138 INFO L85 PathProgramCache]: Analyzing trace with hash -398547278, now seen corresponding path program 1 times [2021-11-22 16:16:30,139 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:16:30,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982623154] [2021-11-22 16:16:30,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:16:30,139 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:16:30,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:16:30,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:16:30,326 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:16:30,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982623154] [2021-11-22 16:16:30,326 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982623154] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:16:30,326 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:16:30,326 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-22 16:16:30,326 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105940179] [2021-11-22 16:16:30,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:16:30,328 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-22 16:16:30,328 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:16:30,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-22 16:16:30,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-11-22 16:16:30,329 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) [2021-11-22 16:16:30,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:16:30,996 INFO L93 Difference]: Finished difference Result 198 states and 230 transitions. [2021-11-22 16:16:30,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-22 16:16:30,997 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 [2021-11-22 16:16:30,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:16:30,998 INFO L225 Difference]: With dead ends: 198 [2021-11-22 16:16:30,998 INFO L226 Difference]: Without dead ends: 198 [2021-11-22 16:16:30,999 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 [2021-11-22 16:16:30,999 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 [2021-11-22 16:16:31,000 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] [2021-11-22 16:16:31,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2021-11-22 16:16:31,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 188. [2021-11-22 16:16:31,003 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) [2021-11-22 16:16:31,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 219 transitions. [2021-11-22 16:16:31,004 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 219 transitions. Word has length 27 [2021-11-22 16:16:31,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:16:31,004 INFO L470 AbstractCegarLoop]: Abstraction has 188 states and 219 transitions. [2021-11-22 16:16:31,005 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) [2021-11-22 16:16:31,005 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 219 transitions. [2021-11-22 16:16:31,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-22 16:16:31,005 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:16:31,005 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] [2021-11-22 16:16:31,006 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-22 16:16:31,006 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)] === [2021-11-22 16:16:31,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:16:31,006 INFO L85 PathProgramCache]: Analyzing trace with hash 329779259, now seen corresponding path program 1 times [2021-11-22 16:16:31,006 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:16:31,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46314264] [2021-11-22 16:16:31,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:16:31,007 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:16:31,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:16:31,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:16:31,035 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:16:31,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46314264] [2021-11-22 16:16:31,036 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46314264] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:16:31,036 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:16:31,036 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 16:16:31,036 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345797072] [2021-11-22 16:16:31,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:16:31,037 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 16:16:31,037 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:16:31,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 16:16:31,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 16:16:31,038 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) [2021-11-22 16:16:31,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:16:31,047 INFO L93 Difference]: Finished difference Result 262 states and 307 transitions. [2021-11-22 16:16:31,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 16:16:31,048 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 [2021-11-22 16:16:31,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:16:31,049 INFO L225 Difference]: With dead ends: 262 [2021-11-22 16:16:31,050 INFO L226 Difference]: Without dead ends: 262 [2021-11-22 16:16:31,050 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 [2021-11-22 16:16:31,051 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 [2021-11-22 16:16:31,051 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] [2021-11-22 16:16:31,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2021-11-22 16:16:31,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 194. [2021-11-22 16:16:31,056 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) [2021-11-22 16:16:31,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 227 transitions. [2021-11-22 16:16:31,057 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 227 transitions. Word has length 28 [2021-11-22 16:16:31,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:16:31,057 INFO L470 AbstractCegarLoop]: Abstraction has 194 states and 227 transitions. [2021-11-22 16:16:31,057 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) [2021-11-22 16:16:31,057 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 227 transitions. [2021-11-22 16:16:31,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-22 16:16:31,059 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:16:31,060 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] [2021-11-22 16:16:31,060 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-22 16:16:31,060 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)] === [2021-11-22 16:16:31,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:16:31,061 INFO L85 PathProgramCache]: Analyzing trace with hash -751842895, now seen corresponding path program 1 times [2021-11-22 16:16:31,061 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:16:31,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49648900] [2021-11-22 16:16:31,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:16:31,061 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:16:31,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:16:31,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:16:31,131 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:16:31,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49648900] [2021-11-22 16:16:31,131 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49648900] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:16:31,131 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:16:31,131 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-22 16:16:31,132 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646316448] [2021-11-22 16:16:31,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:16:31,132 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-22 16:16:31,132 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:16:31,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-22 16:16:31,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-22 16:16:31,133 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) [2021-11-22 16:16:31,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:16:31,274 INFO L93 Difference]: Finished difference Result 199 states and 233 transitions. [2021-11-22 16:16:31,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 16:16:31,274 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 [2021-11-22 16:16:31,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:16:31,275 INFO L225 Difference]: With dead ends: 199 [2021-11-22 16:16:31,275 INFO L226 Difference]: Without dead ends: 199 [2021-11-22 16:16:31,275 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 [2021-11-22 16:16:31,276 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 [2021-11-22 16:16:31,276 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] [2021-11-22 16:16:31,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2021-11-22 16:16:31,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 190. [2021-11-22 16:16:31,280 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) [2021-11-22 16:16:31,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 223 transitions. [2021-11-22 16:16:31,281 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 223 transitions. Word has length 29 [2021-11-22 16:16:31,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:16:31,281 INFO L470 AbstractCegarLoop]: Abstraction has 190 states and 223 transitions. [2021-11-22 16:16:31,281 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) [2021-11-22 16:16:31,282 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 223 transitions. [2021-11-22 16:16:31,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-22 16:16:31,282 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:16:31,282 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] [2021-11-22 16:16:31,282 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-22 16:16:31,282 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)] === [2021-11-22 16:16:31,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:16:31,283 INFO L85 PathProgramCache]: Analyzing trace with hash 1633211075, now seen corresponding path program 1 times [2021-11-22 16:16:31,283 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:16:31,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950884792] [2021-11-22 16:16:31,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:16:31,283 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:16:31,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:16:31,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:16:31,320 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:16:31,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950884792] [2021-11-22 16:16:31,320 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950884792] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:16:31,320 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:16:31,320 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 16:16:31,321 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829733563] [2021-11-22 16:16:31,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:16:31,321 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 16:16:31,321 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:16:31,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 16:16:31,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 16:16:31,322 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) [2021-11-22 16:16:31,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:16:31,338 INFO L93 Difference]: Finished difference Result 188 states and 220 transitions. [2021-11-22 16:16:31,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 16:16:31,338 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 [2021-11-22 16:16:31,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:16:31,339 INFO L225 Difference]: With dead ends: 188 [2021-11-22 16:16:31,340 INFO L226 Difference]: Without dead ends: 188 [2021-11-22 16:16:31,340 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 [2021-11-22 16:16:31,341 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 [2021-11-22 16:16:31,341 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] [2021-11-22 16:16:31,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2021-11-22 16:16:31,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 188. [2021-11-22 16:16:31,345 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) [2021-11-22 16:16:31,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 220 transitions. [2021-11-22 16:16:31,346 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 220 transitions. Word has length 29 [2021-11-22 16:16:31,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:16:31,346 INFO L470 AbstractCegarLoop]: Abstraction has 188 states and 220 transitions. [2021-11-22 16:16:31,346 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) [2021-11-22 16:16:31,347 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 220 transitions. [2021-11-22 16:16:31,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-22 16:16:31,347 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:16:31,347 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] [2021-11-22 16:16:31,347 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-22 16:16:31,347 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr55REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-22 16:16:31,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:16:31,348 INFO L85 PathProgramCache]: Analyzing trace with hash -910059888, now seen corresponding path program 1 times [2021-11-22 16:16:31,348 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:16:31,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820963240] [2021-11-22 16:16:31,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:16:31,348 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:16:31,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:16:31,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:16:31,488 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:16:31,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820963240] [2021-11-22 16:16:31,488 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820963240] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:16:31,488 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:16:31,488 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-22 16:16:31,489 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730399635] [2021-11-22 16:16:31,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:16:31,492 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-22 16:16:31,493 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:16:31,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-22 16:16:31,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-22 16:16:31,494 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) [2021-11-22 16:16:31,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:16:31,917 INFO L93 Difference]: Finished difference Result 291 states and 320 transitions. [2021-11-22 16:16:31,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-22 16:16:31,918 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 [2021-11-22 16:16:31,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:16:31,919 INFO L225 Difference]: With dead ends: 291 [2021-11-22 16:16:31,919 INFO L226 Difference]: Without dead ends: 291 [2021-11-22 16:16:31,920 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 [2021-11-22 16:16:31,920 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 [2021-11-22 16:16:31,921 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] [2021-11-22 16:16:31,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2021-11-22 16:16:31,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 200. [2021-11-22 16:16:31,926 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) [2021-11-22 16:16:31,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 233 transitions. [2021-11-22 16:16:31,927 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 233 transitions. Word has length 30 [2021-11-22 16:16:31,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:16:31,928 INFO L470 AbstractCegarLoop]: Abstraction has 200 states and 233 transitions. [2021-11-22 16:16:31,928 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) [2021-11-22 16:16:31,928 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 233 transitions. [2021-11-22 16:16:31,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-22 16:16:31,929 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:16:31,929 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] [2021-11-22 16:16:31,929 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-22 16:16:31,929 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr52REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-22 16:16:31,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:16:31,930 INFO L85 PathProgramCache]: Analyzing trace with hash 2071508259, now seen corresponding path program 1 times [2021-11-22 16:16:31,930 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:16:31,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424836758] [2021-11-22 16:16:31,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:16:31,930 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:16:31,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:16:32,007 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:16:32,007 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:16:32,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424836758] [2021-11-22 16:16:32,008 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424836758] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 16:16:32,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [228402282] [2021-11-22 16:16:32,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:16:32,008 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 16:16:32,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeb962a8-df25-49a5-ad40-2e56f1ef9931/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 16:16:32,009 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeb962a8-df25-49a5-ad40-2e56f1ef9931/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 16:16:32,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeb962a8-df25-49a5-ad40-2e56f1ef9931/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-22 16:16:32,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:16:32,070 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-22 16:16:32,076 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 16:16:32,139 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 [2021-11-22 16:16:32,155 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 [2021-11-22 16:16:32,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 16:16:32,207 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 [2021-11-22 16:16:32,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 16:16:32,226 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 [2021-11-22 16:16:32,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 16:16:32,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 16:16:32,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 16:16:32,353 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-22 16:16:32,353 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 [2021-11-22 16:16:32,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 16:16:32,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 16:16:32,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 16:16:32,379 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 [2021-11-22 16:16:32,871 INFO L354 Elim1Store]: treesize reduction 22, result has 12.0 percent of original size [2021-11-22 16:16:32,871 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 [2021-11-22 16:16:32,885 INFO L354 Elim1Store]: treesize reduction 22, result has 12.0 percent of original size [2021-11-22 16:16:32,885 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 [2021-11-22 16:16:32,899 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:16:32,899 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 16:16:34,493 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 [2021-11-22 16:16:34,505 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 [2021-11-22 16:16:34,510 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 [2021-11-22 16:16:34,515 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 [2021-11-22 16:16:34,555 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:16:34,556 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [228402282] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 16:16:34,556 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 16:16:34,556 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 9, 8] total 15 [2021-11-22 16:16:34,556 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145179677] [2021-11-22 16:16:34,557 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 16:16:34,557 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-22 16:16:34,557 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:16:34,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-22 16:16:34,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=160, Unknown=1, NotChecked=0, Total=210 [2021-11-22 16:16:34,558 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) [2021-11-22 16:16:35,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:16:35,188 INFO L93 Difference]: Finished difference Result 348 states and 379 transitions. [2021-11-22 16:16:35,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-22 16:16:35,189 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 [2021-11-22 16:16:35,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:16:35,192 INFO L225 Difference]: With dead ends: 348 [2021-11-22 16:16:35,192 INFO L226 Difference]: Without dead ends: 348 [2021-11-22 16:16:35,192 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 [2021-11-22 16:16:35,193 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 739 mSDsluCounter, 750 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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, 0.4s IncrementalHoareTripleChecker+Time [2021-11-22 16:16:35,193 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [739 Valid, 857 Invalid, 513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 386 Invalid, 0 Unknown, 69 Unchecked, 0.4s Time] [2021-11-22 16:16:35,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2021-11-22 16:16:35,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 228. [2021-11-22 16:16:35,199 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) [2021-11-22 16:16:35,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 274 transitions. [2021-11-22 16:16:35,200 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 274 transitions. Word has length 32 [2021-11-22 16:16:35,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:16:35,201 INFO L470 AbstractCegarLoop]: Abstraction has 228 states and 274 transitions. [2021-11-22 16:16:35,201 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) [2021-11-22 16:16:35,201 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 274 transitions. [2021-11-22 16:16:35,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-22 16:16:35,202 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:16:35,202 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:16:35,241 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeb962a8-df25-49a5-ad40-2e56f1ef9931/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-22 16:16:35,422 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeb962a8-df25-49a5-ad40-2e56f1ef9931/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2021-11-22 16:16:35,423 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr55REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-22 16:16:35,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:16:35,424 INFO L85 PathProgramCache]: Analyzing trace with hash 1393921825, now seen corresponding path program 1 times [2021-11-22 16:16:35,424 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:16:35,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492610068] [2021-11-22 16:16:35,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:16:35,424 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:16:35,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:16:35,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:16:35,569 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:16:35,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492610068] [2021-11-22 16:16:35,569 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492610068] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:16:35,569 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:16:35,570 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-22 16:16:35,570 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247123340] [2021-11-22 16:16:35,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:16:35,570 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-22 16:16:35,570 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:16:35,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-22 16:16:35,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-11-22 16:16:35,571 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) [2021-11-22 16:16:36,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:16:36,221 INFO L93 Difference]: Finished difference Result 334 states and 372 transitions. [2021-11-22 16:16:36,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-22 16:16:36,221 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 [2021-11-22 16:16:36,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:16:36,223 INFO L225 Difference]: With dead ends: 334 [2021-11-22 16:16:36,223 INFO L226 Difference]: Without dead ends: 334 [2021-11-22 16:16:36,224 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 [2021-11-22 16:16:36,224 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 [2021-11-22 16:16:36,225 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] [2021-11-22 16:16:36,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2021-11-22 16:16:36,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 229. [2021-11-22 16:16:36,230 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) [2021-11-22 16:16:36,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 272 transitions. [2021-11-22 16:16:36,231 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 272 transitions. Word has length 35 [2021-11-22 16:16:36,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:16:36,231 INFO L470 AbstractCegarLoop]: Abstraction has 229 states and 272 transitions. [2021-11-22 16:16:36,232 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) [2021-11-22 16:16:36,232 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 272 transitions. [2021-11-22 16:16:36,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-22 16:16:36,232 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:16:36,232 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] [2021-11-22 16:16:36,233 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-22 16:16:36,233 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr56REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-22 16:16:36,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:16:36,233 INFO L85 PathProgramCache]: Analyzing trace with hash 1393921826, now seen corresponding path program 1 times [2021-11-22 16:16:36,233 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:16:36,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289926450] [2021-11-22 16:16:36,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:16:36,234 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:16:36,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:16:36,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:16:36,476 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:16:36,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289926450] [2021-11-22 16:16:36,476 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289926450] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:16:36,477 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:16:36,477 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-22 16:16:36,477 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737972026] [2021-11-22 16:16:36,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:16:36,477 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-22 16:16:36,477 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:16:36,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-22 16:16:36,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-11-22 16:16:36,478 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) [2021-11-22 16:16:37,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:16:37,352 INFO L93 Difference]: Finished difference Result 408 states and 438 transitions. [2021-11-22 16:16:37,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-22 16:16:37,352 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 [2021-11-22 16:16:37,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:16:37,354 INFO L225 Difference]: With dead ends: 408 [2021-11-22 16:16:37,354 INFO L226 Difference]: Without dead ends: 408 [2021-11-22 16:16:37,355 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 [2021-11-22 16:16:37,355 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 [2021-11-22 16:16:37,356 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] [2021-11-22 16:16:37,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2021-11-22 16:16:37,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 235. [2021-11-22 16:16:37,361 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) [2021-11-22 16:16:37,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 279 transitions. [2021-11-22 16:16:37,362 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 279 transitions. Word has length 35 [2021-11-22 16:16:37,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:16:37,362 INFO L470 AbstractCegarLoop]: Abstraction has 235 states and 279 transitions. [2021-11-22 16:16:37,363 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) [2021-11-22 16:16:37,363 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 279 transitions. [2021-11-22 16:16:37,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-22 16:16:37,363 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:16:37,363 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] [2021-11-22 16:16:37,363 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-11-22 16:16:37,364 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)] === [2021-11-22 16:16:37,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:16:37,364 INFO L85 PathProgramCache]: Analyzing trace with hash -470914463, now seen corresponding path program 1 times [2021-11-22 16:16:37,364 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:16:37,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106697590] [2021-11-22 16:16:37,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:16:37,365 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:16:37,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:16:37,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:16:37,628 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:16:37,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106697590] [2021-11-22 16:16:37,628 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106697590] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:16:37,628 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:16:37,628 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-22 16:16:37,629 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795323356] [2021-11-22 16:16:37,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:16:37,629 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-22 16:16:37,629 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:16:37,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-22 16:16:37,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-11-22 16:16:37,630 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) [2021-11-22 16:16:38,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:16:38,616 INFO L93 Difference]: Finished difference Result 403 states and 433 transitions. [2021-11-22 16:16:38,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-22 16:16:38,617 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 [2021-11-22 16:16:38,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:16:38,619 INFO L225 Difference]: With dead ends: 403 [2021-11-22 16:16:38,619 INFO L226 Difference]: Without dead ends: 403 [2021-11-22 16:16:38,619 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=174, Invalid=638, Unknown=0, NotChecked=0, Total=812 [2021-11-22 16:16:38,620 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 [2021-11-22 16:16:38,620 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] [2021-11-22 16:16:38,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2021-11-22 16:16:38,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 235. [2021-11-22 16:16:38,626 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) [2021-11-22 16:16:38,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 278 transitions. [2021-11-22 16:16:38,627 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 278 transitions. Word has length 37 [2021-11-22 16:16:38,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:16:38,628 INFO L470 AbstractCegarLoop]: Abstraction has 235 states and 278 transitions. [2021-11-22 16:16:38,628 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) [2021-11-22 16:16:38,628 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 278 transitions. [2021-11-22 16:16:38,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-22 16:16:38,629 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:16:38,629 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] [2021-11-22 16:16:38,629 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-11-22 16:16:38,629 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr40REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-22 16:16:38,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:16:38,630 INFO L85 PathProgramCache]: Analyzing trace with hash -2012362969, now seen corresponding path program 1 times [2021-11-22 16:16:38,630 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:16:38,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505539966] [2021-11-22 16:16:38,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:16:38,631 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:16:38,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:16:38,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:16:38,674 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:16:38,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505539966] [2021-11-22 16:16:38,674 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505539966] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:16:38,674 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:16:38,675 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-22 16:16:38,675 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047732478] [2021-11-22 16:16:38,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:16:38,675 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-22 16:16:38,675 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:16:38,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-22 16:16:38,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-22 16:16:38,677 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) [2021-11-22 16:16:38,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:16:38,805 INFO L93 Difference]: Finished difference Result 234 states and 277 transitions. [2021-11-22 16:16:38,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 16:16:38,806 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 [2021-11-22 16:16:38,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:16:38,809 INFO L225 Difference]: With dead ends: 234 [2021-11-22 16:16:38,809 INFO L226 Difference]: Without dead ends: 234 [2021-11-22 16:16:38,809 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 [2021-11-22 16:16:38,810 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 [2021-11-22 16:16:38,810 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] [2021-11-22 16:16:38,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2021-11-22 16:16:38,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2021-11-22 16:16:38,815 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) [2021-11-22 16:16:38,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 277 transitions. [2021-11-22 16:16:38,816 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 277 transitions. Word has length 37 [2021-11-22 16:16:38,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:16:38,816 INFO L470 AbstractCegarLoop]: Abstraction has 234 states and 277 transitions. [2021-11-22 16:16:38,816 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) [2021-11-22 16:16:38,816 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 277 transitions. [2021-11-22 16:16:38,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-22 16:16:38,817 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:16:38,817 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] [2021-11-22 16:16:38,818 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-11-22 16:16:38,818 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr41REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-22 16:16:38,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:16:38,818 INFO L85 PathProgramCache]: Analyzing trace with hash -2012362968, now seen corresponding path program 1 times [2021-11-22 16:16:38,818 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:16:38,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529713918] [2021-11-22 16:16:38,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:16:38,819 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:16:38,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:16:38,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:16:38,868 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:16:38,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529713918] [2021-11-22 16:16:38,868 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529713918] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:16:38,868 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:16:38,868 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-22 16:16:38,868 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612243771] [2021-11-22 16:16:38,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:16:38,869 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-22 16:16:38,869 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:16:38,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-22 16:16:38,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-22 16:16:38,870 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) [2021-11-22 16:16:39,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:16:39,025 INFO L93 Difference]: Finished difference Result 233 states and 276 transitions. [2021-11-22 16:16:39,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 16:16:39,026 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 [2021-11-22 16:16:39,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:16:39,027 INFO L225 Difference]: With dead ends: 233 [2021-11-22 16:16:39,027 INFO L226 Difference]: Without dead ends: 233 [2021-11-22 16:16:39,028 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 [2021-11-22 16:16:39,028 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 [2021-11-22 16:16:39,029 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] [2021-11-22 16:16:39,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2021-11-22 16:16:39,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 233. [2021-11-22 16:16:39,033 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) [2021-11-22 16:16:39,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 276 transitions. [2021-11-22 16:16:39,034 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 276 transitions. Word has length 37 [2021-11-22 16:16:39,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:16:39,034 INFO L470 AbstractCegarLoop]: Abstraction has 233 states and 276 transitions. [2021-11-22 16:16:39,034 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) [2021-11-22 16:16:39,034 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 276 transitions. [2021-11-22 16:16:39,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-22 16:16:39,035 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:16:39,035 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] [2021-11-22 16:16:39,035 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-11-22 16:16:39,035 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)] === [2021-11-22 16:16:39,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:16:39,035 INFO L85 PathProgramCache]: Analyzing trace with hash 1939172976, now seen corresponding path program 1 times [2021-11-22 16:16:39,036 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:16:39,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31746697] [2021-11-22 16:16:39,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:16:39,036 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:16:39,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:16:39,138 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-22 16:16:39,139 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:16:39,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31746697] [2021-11-22 16:16:39,139 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31746697] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:16:39,139 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:16:39,139 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-22 16:16:39,140 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436168215] [2021-11-22 16:16:39,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:16:39,140 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-22 16:16:39,140 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:16:39,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-22 16:16:39,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-11-22 16:16:39,141 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) [2021-11-22 16:16:39,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:16:39,382 INFO L93 Difference]: Finished difference Result 256 states and 299 transitions. [2021-11-22 16:16:39,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-22 16:16:39,383 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 [2021-11-22 16:16:39,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:16:39,384 INFO L225 Difference]: With dead ends: 256 [2021-11-22 16:16:39,385 INFO L226 Difference]: Without dead ends: 256 [2021-11-22 16:16:39,385 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 [2021-11-22 16:16:39,385 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 [2021-11-22 16:16:39,386 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] [2021-11-22 16:16:39,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2021-11-22 16:16:39,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 242. [2021-11-22 16:16:39,399 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) [2021-11-22 16:16:39,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 285 transitions. [2021-11-22 16:16:39,400 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 285 transitions. Word has length 37 [2021-11-22 16:16:39,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:16:39,400 INFO L470 AbstractCegarLoop]: Abstraction has 242 states and 285 transitions. [2021-11-22 16:16:39,401 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) [2021-11-22 16:16:39,401 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 285 transitions. [2021-11-22 16:16:39,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-22 16:16:39,401 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:16:39,402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:16:39,402 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-11-22 16:16:39,402 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)] === [2021-11-22 16:16:39,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:16:39,403 INFO L85 PathProgramCache]: Analyzing trace with hash -1413983143, now seen corresponding path program 1 times [2021-11-22 16:16:39,403 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:16:39,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860242349] [2021-11-22 16:16:39,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:16:39,404 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:16:39,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:16:39,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:16:39,430 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:16:39,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860242349] [2021-11-22 16:16:39,431 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860242349] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:16:39,431 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:16:39,431 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 16:16:39,431 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248339702] [2021-11-22 16:16:39,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:16:39,432 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 16:16:39,432 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:16:39,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 16:16:39,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 16:16:39,433 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) [2021-11-22 16:16:39,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:16:39,442 INFO L93 Difference]: Finished difference Result 243 states and 286 transitions. [2021-11-22 16:16:39,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 16:16:39,442 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 [2021-11-22 16:16:39,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:16:39,444 INFO L225 Difference]: With dead ends: 243 [2021-11-22 16:16:39,444 INFO L226 Difference]: Without dead ends: 243 [2021-11-22 16:16:39,445 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 [2021-11-22 16:16:39,446 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 [2021-11-22 16:16:39,446 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] [2021-11-22 16:16:39,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2021-11-22 16:16:39,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 243. [2021-11-22 16:16:39,451 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) [2021-11-22 16:16:39,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 286 transitions. [2021-11-22 16:16:39,453 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 286 transitions. Word has length 39 [2021-11-22 16:16:39,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:16:39,453 INFO L470 AbstractCegarLoop]: Abstraction has 243 states and 286 transitions. [2021-11-22 16:16:39,454 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) [2021-11-22 16:16:39,454 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 286 transitions. [2021-11-22 16:16:39,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-22 16:16:39,454 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:16:39,455 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] [2021-11-22 16:16:39,455 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-11-22 16:16:39,455 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)] === [2021-11-22 16:16:39,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:16:39,456 INFO L85 PathProgramCache]: Analyzing trace with hash -404838824, now seen corresponding path program 1 times [2021-11-22 16:16:39,456 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:16:39,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470277322] [2021-11-22 16:16:39,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:16:39,456 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:16:39,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:16:39,492 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-22 16:16:39,492 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:16:39,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470277322] [2021-11-22 16:16:39,493 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470277322] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:16:39,493 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:16:39,493 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-22 16:16:39,493 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173447012] [2021-11-22 16:16:39,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:16:39,494 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 16:16:39,494 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:16:39,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 16:16:39,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 16:16:39,495 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) [2021-11-22 16:16:39,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:16:39,538 INFO L93 Difference]: Finished difference Result 256 states and 290 transitions. [2021-11-22 16:16:39,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 16:16:39,538 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 [2021-11-22 16:16:39,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:16:39,540 INFO L225 Difference]: With dead ends: 256 [2021-11-22 16:16:39,540 INFO L226 Difference]: Without dead ends: 256 [2021-11-22 16:16:39,540 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 [2021-11-22 16:16:39,545 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 [2021-11-22 16:16:39,545 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] [2021-11-22 16:16:39,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2021-11-22 16:16:39,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 244. [2021-11-22 16:16:39,567 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) [2021-11-22 16:16:39,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 287 transitions. [2021-11-22 16:16:39,568 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 287 transitions. Word has length 39 [2021-11-22 16:16:39,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:16:39,569 INFO L470 AbstractCegarLoop]: Abstraction has 244 states and 287 transitions. [2021-11-22 16:16:39,570 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) [2021-11-22 16:16:39,570 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 287 transitions. [2021-11-22 16:16:39,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-22 16:16:39,571 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:16:39,571 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] [2021-11-22 16:16:39,571 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-11-22 16:16:39,571 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)] === [2021-11-22 16:16:39,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:16:39,572 INFO L85 PathProgramCache]: Analyzing trace with hash -1645380794, now seen corresponding path program 1 times [2021-11-22 16:16:39,572 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:16:39,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022598897] [2021-11-22 16:16:39,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:16:39,572 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:16:39,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:16:39,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:16:39,877 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:16:39,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022598897] [2021-11-22 16:16:39,877 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022598897] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:16:39,877 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:16:39,878 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-11-22 16:16:39,878 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161912669] [2021-11-22 16:16:39,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:16:39,878 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-22 16:16:39,878 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:16:39,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-22 16:16:39,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2021-11-22 16:16:39,879 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) [2021-11-22 16:16:40,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:16:40,871 INFO L93 Difference]: Finished difference Result 409 states and 439 transitions. [2021-11-22 16:16:40,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-22 16:16:40,872 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 [2021-11-22 16:16:40,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:16:40,874 INFO L225 Difference]: With dead ends: 409 [2021-11-22 16:16:40,874 INFO L226 Difference]: Without dead ends: 409 [2021-11-22 16:16:40,875 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 [2021-11-22 16:16:40,875 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 [2021-11-22 16:16:40,876 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] [2021-11-22 16:16:40,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2021-11-22 16:16:40,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 244. [2021-11-22 16:16:40,881 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) [2021-11-22 16:16:40,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 286 transitions. [2021-11-22 16:16:40,883 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 286 transitions. Word has length 40 [2021-11-22 16:16:40,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:16:40,883 INFO L470 AbstractCegarLoop]: Abstraction has 244 states and 286 transitions. [2021-11-22 16:16:40,883 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) [2021-11-22 16:16:40,883 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 286 transitions. [2021-11-22 16:16:40,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-22 16:16:40,884 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:16:40,884 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] [2021-11-22 16:16:40,884 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-11-22 16:16:40,885 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr44REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-22 16:16:40,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:16:40,886 INFO L85 PathProgramCache]: Analyzing trace with hash -1151553849, now seen corresponding path program 1 times [2021-11-22 16:16:40,886 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:16:40,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623497113] [2021-11-22 16:16:40,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:16:40,887 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:16:40,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:16:41,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:16:41,076 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:16:41,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623497113] [2021-11-22 16:16:41,076 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623497113] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:16:41,076 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:16:41,076 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-22 16:16:41,077 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706747087] [2021-11-22 16:16:41,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:16:41,077 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-22 16:16:41,077 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:16:41,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-22 16:16:41,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2021-11-22 16:16:41,078 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) [2021-11-22 16:16:41,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:16:41,640 INFO L93 Difference]: Finished difference Result 243 states and 285 transitions. [2021-11-22 16:16:41,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-22 16:16:41,641 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 [2021-11-22 16:16:41,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:16:41,642 INFO L225 Difference]: With dead ends: 243 [2021-11-22 16:16:41,642 INFO L226 Difference]: Without dead ends: 243 [2021-11-22 16:16:41,643 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 [2021-11-22 16:16:41,644 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, 0.4s IncrementalHoareTripleChecker+Time [2021-11-22 16:16:41,644 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [201 Valid, 697 Invalid, 688 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 662 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-22 16:16:41,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2021-11-22 16:16:41,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 243. [2021-11-22 16:16:41,649 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) [2021-11-22 16:16:41,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 285 transitions. [2021-11-22 16:16:41,650 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 285 transitions. Word has length 40 [2021-11-22 16:16:41,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:16:41,650 INFO L470 AbstractCegarLoop]: Abstraction has 243 states and 285 transitions. [2021-11-22 16:16:41,651 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) [2021-11-22 16:16:41,651 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 285 transitions. [2021-11-22 16:16:41,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-22 16:16:41,651 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:16:41,651 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] [2021-11-22 16:16:41,652 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-11-22 16:16:41,652 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr45REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-22 16:16:41,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:16:41,652 INFO L85 PathProgramCache]: Analyzing trace with hash -1151553848, now seen corresponding path program 1 times [2021-11-22 16:16:41,653 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:16:41,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915776501] [2021-11-22 16:16:41,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:16:41,653 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:16:41,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:16:41,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:16:41,862 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:16:41,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915776501] [2021-11-22 16:16:41,862 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915776501] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:16:41,862 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:16:41,862 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-22 16:16:41,862 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126888640] [2021-11-22 16:16:41,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:16:41,863 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-22 16:16:41,863 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:16:41,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-22 16:16:41,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2021-11-22 16:16:41,863 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) [2021-11-22 16:16:42,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:16:42,344 INFO L93 Difference]: Finished difference Result 242 states and 284 transitions. [2021-11-22 16:16:42,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-22 16:16:42,345 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 [2021-11-22 16:16:42,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:16:42,346 INFO L225 Difference]: With dead ends: 242 [2021-11-22 16:16:42,346 INFO L226 Difference]: Without dead ends: 242 [2021-11-22 16:16:42,347 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 [2021-11-22 16:16:42,347 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, 0.3s IncrementalHoareTripleChecker+Time [2021-11-22 16:16:42,348 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [198 Valid, 551 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 523 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-22 16:16:42,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2021-11-22 16:16:42,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2021-11-22 16:16:42,352 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) [2021-11-22 16:16:42,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 284 transitions. [2021-11-22 16:16:42,355 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 284 transitions. Word has length 40 [2021-11-22 16:16:42,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:16:42,355 INFO L470 AbstractCegarLoop]: Abstraction has 242 states and 284 transitions. [2021-11-22 16:16:42,355 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) [2021-11-22 16:16:42,356 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 284 transitions. [2021-11-22 16:16:42,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-22 16:16:42,356 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:16:42,357 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] [2021-11-22 16:16:42,357 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-11-22 16:16:42,357 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)] === [2021-11-22 16:16:42,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:16:42,358 INFO L85 PathProgramCache]: Analyzing trace with hash -1626494914, now seen corresponding path program 1 times [2021-11-22 16:16:42,358 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:16:42,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570694090] [2021-11-22 16:16:42,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:16:42,358 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:16:42,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:16:42,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:16:42,427 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:16:42,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570694090] [2021-11-22 16:16:42,427 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570694090] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:16:42,427 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:16:42,428 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-22 16:16:42,428 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824986870] [2021-11-22 16:16:42,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:16:42,428 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-22 16:16:42,428 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:16:42,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-22 16:16:42,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-22 16:16:42,429 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) [2021-11-22 16:16:42,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:16:42,689 INFO L93 Difference]: Finished difference Result 252 states and 296 transitions. [2021-11-22 16:16:42,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-22 16:16:42,689 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 [2021-11-22 16:16:42,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:16:42,691 INFO L225 Difference]: With dead ends: 252 [2021-11-22 16:16:42,691 INFO L226 Difference]: Without dead ends: 252 [2021-11-22 16:16:42,691 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 [2021-11-22 16:16:42,693 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, 0.2s IncrementalHoareTripleChecker+Time [2021-11-22 16:16:42,694 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 660 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-22 16:16:42,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2021-11-22 16:16:42,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 239. [2021-11-22 16:16:42,699 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) [2021-11-22 16:16:42,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 281 transitions. [2021-11-22 16:16:42,700 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 281 transitions. Word has length 41 [2021-11-22 16:16:42,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:16:42,700 INFO L470 AbstractCegarLoop]: Abstraction has 239 states and 281 transitions. [2021-11-22 16:16:42,701 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) [2021-11-22 16:16:42,701 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 281 transitions. [2021-11-22 16:16:42,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-22 16:16:42,701 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:16:42,702 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] [2021-11-22 16:16:42,702 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-11-22 16:16:42,702 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)] === [2021-11-22 16:16:42,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:16:42,703 INFO L85 PathProgramCache]: Analyzing trace with hash 1357177023, now seen corresponding path program 1 times [2021-11-22 16:16:42,703 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:16:42,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402997366] [2021-11-22 16:16:42,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:16:42,703 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:16:42,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:16:42,745 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-22 16:16:42,745 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:16:42,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402997366] [2021-11-22 16:16:42,746 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402997366] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:16:42,746 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:16:42,746 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 16:16:42,746 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866204712] [2021-11-22 16:16:42,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:16:42,747 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 16:16:42,747 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:16:42,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 16:16:42,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 16:16:42,748 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) [2021-11-22 16:16:42,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:16:42,803 INFO L93 Difference]: Finished difference Result 249 states and 290 transitions. [2021-11-22 16:16:42,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 16:16:42,804 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 [2021-11-22 16:16:42,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:16:42,805 INFO L225 Difference]: With dead ends: 249 [2021-11-22 16:16:42,806 INFO L226 Difference]: Without dead ends: 249 [2021-11-22 16:16:42,807 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 [2021-11-22 16:16:42,807 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, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 16:16:42,808 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 170 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 16:16:42,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2021-11-22 16:16:42,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 237. [2021-11-22 16:16:42,812 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) [2021-11-22 16:16:42,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 278 transitions. [2021-11-22 16:16:42,814 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 278 transitions. Word has length 42 [2021-11-22 16:16:42,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:16:42,814 INFO L470 AbstractCegarLoop]: Abstraction has 237 states and 278 transitions. [2021-11-22 16:16:42,814 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) [2021-11-22 16:16:42,814 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 278 transitions. [2021-11-22 16:16:42,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-22 16:16:42,815 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:16:42,815 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] [2021-11-22 16:16:42,815 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-11-22 16:16:42,815 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr66REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-22 16:16:42,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:16:42,816 INFO L85 PathProgramCache]: Analyzing trace with hash -284774687, now seen corresponding path program 1 times [2021-11-22 16:16:42,816 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:16:42,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239714655] [2021-11-22 16:16:42,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:16:42,817 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:16:42,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:16:42,955 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:16:42,955 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:16:42,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239714655] [2021-11-22 16:16:42,956 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239714655] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 16:16:42,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1354047141] [2021-11-22 16:16:42,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:16:42,956 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 16:16:42,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeb962a8-df25-49a5-ad40-2e56f1ef9931/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 16:16:42,957 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeb962a8-df25-49a5-ad40-2e56f1ef9931/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 16:16:42,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeb962a8-df25-49a5-ad40-2e56f1ef9931/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-22 16:16:43,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:16:43,033 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-22 16:16:43,039 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 16:16:43,047 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 [2021-11-22 16:16:43,053 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 [2021-11-22 16:16:43,070 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 [2021-11-22 16:16:43,081 INFO L354 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2021-11-22 16:16:43,081 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 [2021-11-22 16:16:43,090 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 [2021-11-22 16:16:43,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 16:16:43,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 16:16:43,096 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 [2021-11-22 16:16:43,176 INFO L354 Elim1Store]: treesize reduction 56, result has 23.3 percent of original size [2021-11-22 16:16:43,177 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 [2021-11-22 16:16:43,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 16:16:43,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 16:16:43,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-22 16:16:43,189 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 [2021-11-22 16:16:43,700 INFO L354 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2021-11-22 16:16:43,700 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 [2021-11-22 16:16:43,705 INFO L354 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2021-11-22 16:16:43,705 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 [2021-11-22 16:16:43,728 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-22 16:16:43,728 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 16:16:43,928 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-22 16:16:43,928 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1354047141] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 16:16:43,929 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 16:16:43,929 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 6] total 9 [2021-11-22 16:16:43,929 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543129906] [2021-11-22 16:16:43,929 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 16:16:43,930 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-22 16:16:43,930 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:16:43,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-22 16:16:43,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-11-22 16:16:43,931 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) [2021-11-22 16:16:44,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:16:44,309 INFO L93 Difference]: Finished difference Result 319 states and 354 transitions. [2021-11-22 16:16:44,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-22 16:16:44,310 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 [2021-11-22 16:16:44,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:16:44,312 INFO L225 Difference]: With dead ends: 319 [2021-11-22 16:16:44,312 INFO L226 Difference]: Without dead ends: 319 [2021-11-22 16:16:44,312 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 [2021-11-22 16:16:44,313 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 [2021-11-22 16:16:44,313 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] [2021-11-22 16:16:44,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2021-11-22 16:16:44,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 259. [2021-11-22 16:16:44,318 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) [2021-11-22 16:16:44,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 309 transitions. [2021-11-22 16:16:44,320 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 309 transitions. Word has length 42 [2021-11-22 16:16:44,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:16:44,320 INFO L470 AbstractCegarLoop]: Abstraction has 259 states and 309 transitions. [2021-11-22 16:16:44,320 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) [2021-11-22 16:16:44,321 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 309 transitions. [2021-11-22 16:16:44,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-22 16:16:44,321 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:16:44,321 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:16:44,355 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeb962a8-df25-49a5-ad40-2e56f1ef9931/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-22 16:16:44,537 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeb962a8-df25-49a5-ad40-2e56f1ef9931/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2021-11-22 16:16:44,538 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr69REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-22 16:16:44,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:16:44,538 INFO L85 PathProgramCache]: Analyzing trace with hash -877180804, now seen corresponding path program 1 times [2021-11-22 16:16:44,538 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:16:44,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247024794] [2021-11-22 16:16:44,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:16:44,538 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:16:44,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:16:44,652 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-22 16:16:44,652 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:16:44,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247024794] [2021-11-22 16:16:44,653 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247024794] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:16:44,653 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:16:44,653 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-22 16:16:44,653 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548865351] [2021-11-22 16:16:44,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:16:44,656 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-22 16:16:44,656 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:16:44,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-22 16:16:44,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-22 16:16:44,658 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) [2021-11-22 16:16:45,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:16:45,034 INFO L93 Difference]: Finished difference Result 306 states and 343 transitions. [2021-11-22 16:16:45,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-22 16:16:45,034 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 [2021-11-22 16:16:45,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:16:45,036 INFO L225 Difference]: With dead ends: 306 [2021-11-22 16:16:45,036 INFO L226 Difference]: Without dead ends: 306 [2021-11-22 16:16:45,037 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 [2021-11-22 16:16:45,037 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 358 mSDsluCounter, 442 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2021-11-22 16:16:45,038 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] [2021-11-22 16:16:45,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2021-11-22 16:16:45,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 259. [2021-11-22 16:16:45,043 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) [2021-11-22 16:16:45,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 308 transitions. [2021-11-22 16:16:45,044 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 308 transitions. Word has length 43 [2021-11-22 16:16:45,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:16:45,044 INFO L470 AbstractCegarLoop]: Abstraction has 259 states and 308 transitions. [2021-11-22 16:16:45,045 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) [2021-11-22 16:16:45,045 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 308 transitions. [2021-11-22 16:16:45,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-22 16:16:45,045 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:16:45,046 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] [2021-11-22 16:16:45,046 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-11-22 16:16:45,046 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-22 16:16:45,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:16:45,047 INFO L85 PathProgramCache]: Analyzing trace with hash -877180803, now seen corresponding path program 1 times [2021-11-22 16:16:45,047 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:16:45,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739677371] [2021-11-22 16:16:45,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:16:45,047 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:16:45,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:16:45,186 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-22 16:16:45,186 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:16:45,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739677371] [2021-11-22 16:16:45,186 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739677371] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:16:45,186 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:16:45,187 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-22 16:16:45,187 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530062151] [2021-11-22 16:16:45,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:16:45,188 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-22 16:16:45,188 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:16:45,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-22 16:16:45,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-22 16:16:45,190 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) [2021-11-22 16:16:45,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:16:45,654 INFO L93 Difference]: Finished difference Result 306 states and 342 transitions. [2021-11-22 16:16:45,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-22 16:16:45,655 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 [2021-11-22 16:16:45,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:16:45,657 INFO L225 Difference]: With dead ends: 306 [2021-11-22 16:16:45,657 INFO L226 Difference]: Without dead ends: 306 [2021-11-22 16:16:45,657 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 [2021-11-22 16:16:45,658 INFO L933 BasicCegarLoop]: 101 mSDtfsCounter, 302 mSDsluCounter, 425 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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 [2021-11-22 16:16:45,658 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] [2021-11-22 16:16:45,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2021-11-22 16:16:45,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 259. [2021-11-22 16:16:45,663 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) [2021-11-22 16:16:45,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 305 transitions. [2021-11-22 16:16:45,664 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 305 transitions. Word has length 43 [2021-11-22 16:16:45,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:16:45,664 INFO L470 AbstractCegarLoop]: Abstraction has 259 states and 305 transitions. [2021-11-22 16:16:45,664 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) [2021-11-22 16:16:45,664 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 305 transitions. [2021-11-22 16:16:45,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-22 16:16:45,665 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:16:45,665 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, 1, 1, 1, 1, 1, 1] [2021-11-22 16:16:45,666 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-11-22 16:16:45,666 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)] === [2021-11-22 16:16:45,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:16:45,666 INFO L85 PathProgramCache]: Analyzing trace with hash -238079422, now seen corresponding path program 1 times [2021-11-22 16:16:45,667 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:16:45,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958136991] [2021-11-22 16:16:45,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:16:45,667 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:16:45,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:16:45,733 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-22 16:16:45,733 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:16:45,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958136991] [2021-11-22 16:16:45,733 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958136991] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 16:16:45,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1418135623] [2021-11-22 16:16:45,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:16:45,734 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 16:16:45,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeb962a8-df25-49a5-ad40-2e56f1ef9931/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 16:16:45,742 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeb962a8-df25-49a5-ad40-2e56f1ef9931/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 16:16:45,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeb962a8-df25-49a5-ad40-2e56f1ef9931/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-22 16:16:45,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:16:45,796 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-22 16:16:45,798 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 16:16:46,067 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-22 16:16:46,067 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 16:16:46,300 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-22 16:16:46,301 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1418135623] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 16:16:46,301 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 16:16:46,301 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2021-11-22 16:16:46,302 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063885724] [2021-11-22 16:16:46,302 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 16:16:46,302 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-22 16:16:46,303 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:16:46,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-22 16:16:46,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-22 16:16:46,304 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) [2021-11-22 16:16:46,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:16:46,437 INFO L93 Difference]: Finished difference Result 290 states and 336 transitions. [2021-11-22 16:16:46,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-22 16:16:46,438 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 [2021-11-22 16:16:46,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:16:46,439 INFO L225 Difference]: With dead ends: 290 [2021-11-22 16:16:46,439 INFO L226 Difference]: Without dead ends: 266 [2021-11-22 16:16:46,439 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 [2021-11-22 16:16:46,440 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 [2021-11-22 16:16:46,440 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] [2021-11-22 16:16:46,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2021-11-22 16:16:46,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2021-11-22 16:16:46,445 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) [2021-11-22 16:16:46,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 312 transitions. [2021-11-22 16:16:46,447 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 312 transitions. Word has length 43 [2021-11-22 16:16:46,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:16:46,447 INFO L470 AbstractCegarLoop]: Abstraction has 266 states and 312 transitions. [2021-11-22 16:16:46,447 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) [2021-11-22 16:16:46,448 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 312 transitions. [2021-11-22 16:16:46,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-22 16:16:46,448 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:16:46,448 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] [2021-11-22 16:16:46,486 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeb962a8-df25-49a5-ad40-2e56f1ef9931/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-22 16:16:46,661 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeb962a8-df25-49a5-ad40-2e56f1ef9931/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2021-11-22 16:16:46,661 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)] === [2021-11-22 16:16:46,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:16:46,661 INFO L85 PathProgramCache]: Analyzing trace with hash -1157151236, now seen corresponding path program 1 times [2021-11-22 16:16:46,662 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:16:46,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095830794] [2021-11-22 16:16:46,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:16:46,662 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:16:46,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:16:46,896 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:16:46,896 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:16:46,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095830794] [2021-11-22 16:16:46,897 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095830794] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:16:46,897 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:16:46,897 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-22 16:16:46,897 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556212195] [2021-11-22 16:16:46,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:16:46,897 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-22 16:16:46,897 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:16:46,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-22 16:16:46,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-22 16:16:46,898 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) [2021-11-22 16:16:47,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:16:47,237 INFO L93 Difference]: Finished difference Result 291 states and 325 transitions. [2021-11-22 16:16:47,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-22 16:16:47,238 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 [2021-11-22 16:16:47,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:16:47,239 INFO L225 Difference]: With dead ends: 291 [2021-11-22 16:16:47,239 INFO L226 Difference]: Without dead ends: 291 [2021-11-22 16:16:47,239 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 [2021-11-22 16:16:47,239 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, 0.2s IncrementalHoareTripleChecker+Time [2021-11-22 16:16:47,240 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [214 Valid, 464 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 366 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-22 16:16:47,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2021-11-22 16:16:47,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 265. [2021-11-22 16:16:47,244 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) [2021-11-22 16:16:47,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 310 transitions. [2021-11-22 16:16:47,245 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 310 transitions. Word has length 45 [2021-11-22 16:16:47,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:16:47,246 INFO L470 AbstractCegarLoop]: Abstraction has 265 states and 310 transitions. [2021-11-22 16:16:47,246 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) [2021-11-22 16:16:47,246 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 310 transitions. [2021-11-22 16:16:47,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-22 16:16:47,247 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:16:47,247 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:16:47,247 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-11-22 16:16:47,247 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)] === [2021-11-22 16:16:47,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:16:47,248 INFO L85 PathProgramCache]: Analyzing trace with hash 1529922318, now seen corresponding path program 1 times [2021-11-22 16:16:47,248 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:16:47,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980735215] [2021-11-22 16:16:47,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:16:47,249 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:16:47,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:16:47,273 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:16:47,273 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:16:47,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980735215] [2021-11-22 16:16:47,273 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980735215] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:16:47,273 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:16:47,274 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-22 16:16:47,274 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314124657] [2021-11-22 16:16:47,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:16:47,274 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-22 16:16:47,274 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:16:47,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-22 16:16:47,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-22 16:16:47,275 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) [2021-11-22 16:16:47,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:16:47,286 INFO L93 Difference]: Finished difference Result 405 states and 481 transitions. [2021-11-22 16:16:47,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-22 16:16:47,287 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 [2021-11-22 16:16:47,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:16:47,289 INFO L225 Difference]: With dead ends: 405 [2021-11-22 16:16:47,290 INFO L226 Difference]: Without dead ends: 405 [2021-11-22 16:16:47,290 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 [2021-11-22 16:16:47,291 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 [2021-11-22 16:16:47,291 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] [2021-11-22 16:16:47,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2021-11-22 16:16:47,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 302. [2021-11-22 16:16:47,297 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) [2021-11-22 16:16:47,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 368 transitions. [2021-11-22 16:16:47,299 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 368 transitions. Word has length 45 [2021-11-22 16:16:47,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:16:47,299 INFO L470 AbstractCegarLoop]: Abstraction has 302 states and 368 transitions. [2021-11-22 16:16:47,299 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) [2021-11-22 16:16:47,300 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 368 transitions. [2021-11-22 16:16:47,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-22 16:16:47,300 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:16:47,300 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] [2021-11-22 16:16:47,301 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-11-22 16:16:47,301 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr55REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-22 16:16:47,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:16:47,301 INFO L85 PathProgramCache]: Analyzing trace with hash 1376244065, now seen corresponding path program 1 times [2021-11-22 16:16:47,301 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:16:47,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612193856] [2021-11-22 16:16:47,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:16:47,302 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:16:47,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:16:47,376 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:16:47,377 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:16:47,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612193856] [2021-11-22 16:16:47,377 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612193856] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:16:47,377 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:16:47,377 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-22 16:16:47,378 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735867254] [2021-11-22 16:16:47,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:16:47,378 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-22 16:16:47,378 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:16:47,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-22 16:16:47,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-22 16:16:47,379 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) [2021-11-22 16:16:47,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:16:47,489 INFO L93 Difference]: Finished difference Result 249 states and 280 transitions. [2021-11-22 16:16:47,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 16:16:47,489 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 [2021-11-22 16:16:47,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:16:47,490 INFO L225 Difference]: With dead ends: 249 [2021-11-22 16:16:47,490 INFO L226 Difference]: Without dead ends: 249 [2021-11-22 16:16:47,490 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 [2021-11-22 16:16:47,491 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 [2021-11-22 16:16:47,491 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] [2021-11-22 16:16:47,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2021-11-22 16:16:47,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 249. [2021-11-22 16:16:47,495 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) [2021-11-22 16:16:47,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 280 transitions. [2021-11-22 16:16:47,495 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 280 transitions. Word has length 47 [2021-11-22 16:16:47,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:16:47,495 INFO L470 AbstractCegarLoop]: Abstraction has 249 states and 280 transitions. [2021-11-22 16:16:47,496 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) [2021-11-22 16:16:47,496 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 280 transitions. [2021-11-22 16:16:47,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-22 16:16:47,496 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:16:47,496 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] [2021-11-22 16:16:47,496 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-11-22 16:16:47,496 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)] === [2021-11-22 16:16:47,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:16:47,497 INFO L85 PathProgramCache]: Analyzing trace with hash -1538447444, now seen corresponding path program 1 times [2021-11-22 16:16:47,497 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:16:47,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284111862] [2021-11-22 16:16:47,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:16:47,497 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:16:47,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:16:47,615 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-22 16:16:47,616 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:16:47,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284111862] [2021-11-22 16:16:47,616 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284111862] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:16:47,616 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:16:47,616 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-22 16:16:47,616 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652698271] [2021-11-22 16:16:47,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:16:47,617 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-22 16:16:47,617 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:16:47,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-22 16:16:47,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-11-22 16:16:47,618 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) [2021-11-22 16:16:48,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:16:48,009 INFO L93 Difference]: Finished difference Result 238 states and 263 transitions. [2021-11-22 16:16:48,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-22 16:16:48,010 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 [2021-11-22 16:16:48,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:16:48,011 INFO L225 Difference]: With dead ends: 238 [2021-11-22 16:16:48,011 INFO L226 Difference]: Without dead ends: 238 [2021-11-22 16:16:48,011 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 [2021-11-22 16:16:48,012 INFO L933 BasicCegarLoop]: 86 mSDtfsCounter, 469 mSDsluCounter, 487 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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, 0.2s IncrementalHoareTripleChecker+Time [2021-11-22 16:16:48,012 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [469 Valid, 573 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 433 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-22 16:16:48,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2021-11-22 16:16:48,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 226. [2021-11-22 16:16:48,016 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) [2021-11-22 16:16:48,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 255 transitions. [2021-11-22 16:16:48,017 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 255 transitions. Word has length 50 [2021-11-22 16:16:48,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:16:48,018 INFO L470 AbstractCegarLoop]: Abstraction has 226 states and 255 transitions. [2021-11-22 16:16:48,018 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) [2021-11-22 16:16:48,018 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 255 transitions. [2021-11-22 16:16:48,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-22 16:16:48,018 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:16:48,018 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] [2021-11-22 16:16:48,019 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-11-22 16:16:48,019 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr55REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-22 16:16:48,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:16:48,019 INFO L85 PathProgramCache]: Analyzing trace with hash 1188819543, now seen corresponding path program 1 times [2021-11-22 16:16:48,019 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:16:48,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814426853] [2021-11-22 16:16:48,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:16:48,020 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:16:48,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:16:48,063 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:16:48,063 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:16:48,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814426853] [2021-11-22 16:16:48,064 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814426853] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:16:48,064 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:16:48,064 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-22 16:16:48,064 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076521042] [2021-11-22 16:16:48,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:16:48,065 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-22 16:16:48,065 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:16:48,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-22 16:16:48,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-22 16:16:48,066 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) [2021-11-22 16:16:48,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:16:48,178 INFO L93 Difference]: Finished difference Result 240 states and 270 transitions. [2021-11-22 16:16:48,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 16:16:48,178 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 [2021-11-22 16:16:48,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:16:48,180 INFO L225 Difference]: With dead ends: 240 [2021-11-22 16:16:48,180 INFO L226 Difference]: Without dead ends: 240 [2021-11-22 16:16:48,180 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 [2021-11-22 16:16:48,181 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 [2021-11-22 16:16:48,181 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] [2021-11-22 16:16:48,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2021-11-22 16:16:48,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 229. [2021-11-22 16:16:48,185 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) [2021-11-22 16:16:48,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 258 transitions. [2021-11-22 16:16:48,186 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 258 transitions. Word has length 52 [2021-11-22 16:16:48,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:16:48,187 INFO L470 AbstractCegarLoop]: Abstraction has 229 states and 258 transitions. [2021-11-22 16:16:48,187 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) [2021-11-22 16:16:48,187 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 258 transitions. [2021-11-22 16:16:48,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-22 16:16:48,188 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:16:48,188 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] [2021-11-22 16:16:48,188 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-11-22 16:16:48,188 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr55REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-22 16:16:48,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:16:48,189 INFO L85 PathProgramCache]: Analyzing trace with hash 426433170, now seen corresponding path program 1 times [2021-11-22 16:16:48,189 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:16:48,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987403785] [2021-11-22 16:16:48,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:16:48,189 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:16:48,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:16:48,599 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:16:48,599 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:16:48,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987403785] [2021-11-22 16:16:48,599 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987403785] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 16:16:48,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1345962653] [2021-11-22 16:16:48,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:16:48,599 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 16:16:48,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeb962a8-df25-49a5-ad40-2e56f1ef9931/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 16:16:48,600 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeb962a8-df25-49a5-ad40-2e56f1ef9931/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 16:16:48,601 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeb962a8-df25-49a5-ad40-2e56f1ef9931/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-22 16:16:48,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:16:48,663 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 40 conjunts are in the unsatisfiable core [2021-11-22 16:16:48,667 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 16:16:48,674 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 [2021-11-22 16:16:48,722 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 [2021-11-22 16:16:48,727 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 [2021-11-22 16:16:48,904 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-22 16:16:48,904 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 [2021-11-22 16:16:49,001 INFO L354 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2021-11-22 16:16:49,002 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 [2021-11-22 16:16:49,032 INFO L354 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2021-11-22 16:16:49,033 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 [2021-11-22 16:16:49,240 INFO L354 Elim1Store]: treesize reduction 72, result has 19.1 percent of original size [2021-11-22 16:16:49,240 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 [2021-11-22 16:16:49,279 INFO L354 Elim1Store]: treesize reduction 88, result has 16.2 percent of original size [2021-11-22 16:16:49,280 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 [2021-11-22 16:16:49,800 INFO L354 Elim1Store]: treesize reduction 118, result has 21.3 percent of original size [2021-11-22 16:16:49,800 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 [2021-11-22 16:16:49,841 INFO L354 Elim1Store]: treesize reduction 110, result has 22.5 percent of original size [2021-11-22 16:16:49,841 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 [2021-11-22 16:16:50,347 INFO L354 Elim1Store]: treesize reduction 118, result has 16.9 percent of original size [2021-11-22 16:16:50,347 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 [2021-11-22 16:16:50,385 INFO L354 Elim1Store]: treesize reduction 146, result has 16.1 percent of original size [2021-11-22 16:16:50,386 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 [2021-11-22 16:16:52,891 INFO L354 Elim1Store]: treesize reduction 63, result has 11.3 percent of original size [2021-11-22 16:16:52,892 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 [2021-11-22 16:16:52,899 INFO L354 Elim1Store]: treesize reduction 70, result has 1.4 percent of original size [2021-11-22 16:16:52,899 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 [2021-11-22 16:16:53,160 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:16:53,160 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 16:17:01,322 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_#t~mem11#1.offset| Int)) (let ((.cse1 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|)) (.cse2 (+ |ULTIMATE.start_main_#t~mem11#1.offset| 4)) (.cse3 (+ |c_ULTIMATE.start_main_~list~0#1.offset| 8))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$.base| .cse1 (store (select |c_#memory_$Pointer$.base| .cse1) .cse2 |c_ULTIMATE.start_main_~end~0#1.base|)) |c_ULTIMATE.start_main_~list~0#1.base|) .cse3))) (or (= (select |c_#valid| .cse0) 1) (and (= (select (select (store |c_#memory_$Pointer$.offset| .cse1 (store (select |c_#memory_$Pointer$.offset| .cse1) .cse2 |c_ULTIMATE.start_main_~end~0#1.offset|)) |c_ULTIMATE.start_main_~list~0#1.base|) .cse3) 0) (= .cse0 0)))))) is different from false [2021-11-22 16:17:09,248 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:17:09,249 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1345962653] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 16:17:09,249 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 16:17:09,249 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 12] total 40 [2021-11-22 16:17:09,249 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992388749] [2021-11-22 16:17:09,249 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 16:17:09,250 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2021-11-22 16:17:09,250 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:17:09,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-11-22 16:17:09,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=230, Invalid=1251, Unknown=5, NotChecked=74, Total=1560 [2021-11-22 16:17:09,252 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) [2021-11-22 16:17:44,694 WARN L227 SmtUtils]: Spent 6.05s on a formula simplification that was a NOOP. DAG size: 54 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-22 16:17:55,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:17:55,646 INFO L93 Difference]: Finished difference Result 400 states and 431 transitions. [2021-11-22 16:17:55,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-11-22 16:17:55,646 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 [2021-11-22 16:17:55,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:17:55,648 INFO L225 Difference]: With dead ends: 400 [2021-11-22 16:17:55,648 INFO L226 Difference]: Without dead ends: 400 [2021-11-22 16:17:55,650 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 87 SyntacticMatches, 5 SemanticMatches, 71 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1469 ImplicationChecksByTransitivity, 61.2s TimeCoverageRelationStatistics Valid=753, Invalid=4345, Unknown=18, NotChecked=140, Total=5256 [2021-11-22 16:17:55,651 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 521 mSDsluCounter, 1451 mSDsCounter, 0 mSdLazyCounter, 942 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 521 SdHoareTripleChecker+Valid, 1550 SdHoareTripleChecker+Invalid, 1948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 942 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 948 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-22 16:17:55,651 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [521 Valid, 1550 Invalid, 1948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 942 Invalid, 0 Unknown, 948 Unchecked, 1.0s Time] [2021-11-22 16:17:55,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2021-11-22 16:17:55,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 294. [2021-11-22 16:17:55,657 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) [2021-11-22 16:17:55,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 329 transitions. [2021-11-22 16:17:55,658 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 329 transitions. Word has length 54 [2021-11-22 16:17:55,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:17:55,659 INFO L470 AbstractCegarLoop]: Abstraction has 294 states and 329 transitions. [2021-11-22 16:17:55,659 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) [2021-11-22 16:17:55,659 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 329 transitions. [2021-11-22 16:17:55,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-22 16:17:55,660 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:17:55,660 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] [2021-11-22 16:17:55,699 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeb962a8-df25-49a5-ad40-2e56f1ef9931/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-22 16:17:55,873 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeb962a8-df25-49a5-ad40-2e56f1ef9931/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 16:17:55,873 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr52REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-22 16:17:55,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:17:55,874 INFO L85 PathProgramCache]: Analyzing trace with hash -2048851803, now seen corresponding path program 1 times [2021-11-22 16:17:55,874 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:17:55,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541055259] [2021-11-22 16:17:55,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:17:55,874 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:17:55,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:17:56,291 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:17:56,292 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:17:56,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541055259] [2021-11-22 16:17:56,292 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541055259] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 16:17:56,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1182673594] [2021-11-22 16:17:56,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:17:56,292 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 16:17:56,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeb962a8-df25-49a5-ad40-2e56f1ef9931/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 16:17:56,294 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeb962a8-df25-49a5-ad40-2e56f1ef9931/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 16:17:56,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeb962a8-df25-49a5-ad40-2e56f1ef9931/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-22 16:17:56,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:17:56,364 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-22 16:17:56,367 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 16:17:56,375 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 [2021-11-22 16:17:56,547 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-22 16:17:56,547 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 [2021-11-22 16:17:56,595 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 [2021-11-22 16:17:56,736 INFO L354 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2021-11-22 16:17:56,736 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 [2021-11-22 16:17:57,033 INFO L354 Elim1Store]: treesize reduction 62, result has 27.1 percent of original size [2021-11-22 16:17:57,033 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 [2021-11-22 16:17:57,211 INFO L354 Elim1Store]: treesize reduction 60, result has 20.0 percent of original size [2021-11-22 16:17:57,212 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 [2021-11-22 16:17:57,787 INFO L354 Elim1Store]: treesize reduction 68, result has 4.2 percent of original size [2021-11-22 16:17:57,787 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 [2021-11-22 16:17:57,904 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:17:57,904 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 16:18:37,064 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 [2021-11-22 16:18:37,093 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-11-22 16:18:37,093 INFO L186 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2021-11-22 16:18:37,093 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2021-11-22 16:18:37,093 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66796036] [2021-11-22 16:18:37,094 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2021-11-22 16:18:37,094 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-22 16:18:37,094 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:18:37,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-22 16:18:37,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=189, Invalid=985, Unknown=16, NotChecked=0, Total=1190 [2021-11-22 16:18:37,095 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) [2021-11-22 16:18:38,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:18:38,879 INFO L93 Difference]: Finished difference Result 452 states and 480 transitions. [2021-11-22 16:18:38,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-22 16:18:38,880 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 [2021-11-22 16:18:38,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:18:38,882 INFO L225 Difference]: With dead ends: 452 [2021-11-22 16:18:38,882 INFO L226 Difference]: Without dead ends: 452 [2021-11-22 16:18:38,883 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 70 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 734 ImplicationChecksByTransitivity, 40.4s TimeCoverageRelationStatistics Valid=409, Invalid=1927, Unknown=16, NotChecked=0, Total=2352 [2021-11-22 16:18:38,883 INFO L933 BasicCegarLoop]: 79 mSDtfsCounter, 865 mSDsluCounter, 577 mSDsCounter, 0 mSdLazyCounter, 738 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 865 SdHoareTripleChecker+Valid, 656 SdHoareTripleChecker+Invalid, 857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 738 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-22 16:18:38,884 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [865 Valid, 656 Invalid, 857 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 738 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-22 16:18:38,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2021-11-22 16:18:38,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 343. [2021-11-22 16:18:38,891 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) [2021-11-22 16:18:38,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 389 transitions. [2021-11-22 16:18:38,892 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 389 transitions. Word has length 56 [2021-11-22 16:18:38,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:18:38,893 INFO L470 AbstractCegarLoop]: Abstraction has 343 states and 389 transitions. [2021-11-22 16:18:38,893 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) [2021-11-22 16:18:38,893 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 389 transitions. [2021-11-22 16:18:38,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-22 16:18:38,894 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:18:38,894 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] [2021-11-22 16:18:38,927 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeb962a8-df25-49a5-ad40-2e56f1ef9931/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-22 16:18:39,111 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeb962a8-df25-49a5-ad40-2e56f1ef9931/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2021-11-22 16:18:39,112 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr53REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-22 16:18:39,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:18:39,112 INFO L85 PathProgramCache]: Analyzing trace with hash -2048851802, now seen corresponding path program 1 times [2021-11-22 16:18:39,112 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:18:39,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740849655] [2021-11-22 16:18:39,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:18:39,112 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:18:39,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:18:39,519 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:18:39,520 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:18:39,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740849655] [2021-11-22 16:18:39,520 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740849655] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 16:18:39,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [561318496] [2021-11-22 16:18:39,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:18:39,520 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 16:18:39,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeb962a8-df25-49a5-ad40-2e56f1ef9931/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 16:18:39,521 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeb962a8-df25-49a5-ad40-2e56f1ef9931/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 16:18:39,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeb962a8-df25-49a5-ad40-2e56f1ef9931/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-22 16:18:39,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:18:39,596 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 34 conjunts are in the unsatisfiable core [2021-11-22 16:18:39,599 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 16:18:39,904 INFO L354 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2021-11-22 16:18:39,905 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 [2021-11-22 16:18:39,936 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-11-22 16:18:39,936 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 [2021-11-22 16:18:40,225 INFO L354 Elim1Store]: treesize reduction 52, result has 22.4 percent of original size [2021-11-22 16:18:40,225 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 [2021-11-22 16:18:40,247 INFO L354 Elim1Store]: treesize reduction 92, result has 17.1 percent of original size [2021-11-22 16:18:40,248 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 [2021-11-22 16:18:41,409 INFO L354 Elim1Store]: treesize reduction 193, result has 14.2 percent of original size [2021-11-22 16:18:41,409 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 [2021-11-22 16:18:41,458 INFO L354 Elim1Store]: treesize reduction 77, result has 23.8 percent of original size [2021-11-22 16:18:41,458 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 [2021-11-22 16:18:42,055 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:18:42,055 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 16:18:43,118 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-22 16:18:43,118 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 [2021-11-22 16:18:44,597 INFO L354 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2021-11-22 16:18:44,597 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 [2021-11-22 16:18:44,606 INFO L354 Elim1Store]: treesize reduction 10, result has 9.1 percent of original size [2021-11-22 16:18:44,606 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 [2021-11-22 16:18:46,526 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:18:46,526 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [561318496] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-22 16:18:46,526 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-22 16:18:46,526 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11, 11] total 33 [2021-11-22 16:18:46,526 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269090485] [2021-11-22 16:18:46,526 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-22 16:18:46,527 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2021-11-22 16:18:46,527 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:18:46,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-11-22 16:18:46,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=1008, Unknown=1, NotChecked=0, Total=1122 [2021-11-22 16:18:46,528 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) [2021-11-22 16:18:51,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:18:51,341 INFO L93 Difference]: Finished difference Result 495 states and 526 transitions. [2021-11-22 16:18:51,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-11-22 16:18:51,341 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 [2021-11-22 16:18:51,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:18:51,343 INFO L225 Difference]: With dead ends: 495 [2021-11-22 16:18:51,343 INFO L226 Difference]: Without dead ends: 495 [2021-11-22 16:18:51,345 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 95 SyntacticMatches, 6 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 951 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=707, Invalid=3714, Unknown=1, NotChecked=0, Total=4422 [2021-11-22 16:18:51,346 INFO L933 BasicCegarLoop]: 126 mSDtfsCounter, 1618 mSDsluCounter, 1904 mSDsCounter, 0 mSdLazyCounter, 1875 mSolverCounterSat, 173 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1618 SdHoareTripleChecker+Valid, 2030 SdHoareTripleChecker+Invalid, 2773 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 173 IncrementalHoareTripleChecker+Valid, 1875 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 725 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-11-22 16:18:51,346 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1618 Valid, 2030 Invalid, 2773 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [173 Valid, 1875 Invalid, 0 Unknown, 725 Unchecked, 1.7s Time] [2021-11-22 16:18:51,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2021-11-22 16:18:51,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 342. [2021-11-22 16:18:51,353 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) [2021-11-22 16:18:51,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 387 transitions. [2021-11-22 16:18:51,366 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 387 transitions. Word has length 56 [2021-11-22 16:18:51,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:18:51,367 INFO L470 AbstractCegarLoop]: Abstraction has 342 states and 387 transitions. [2021-11-22 16:18:51,367 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) [2021-11-22 16:18:51,367 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 387 transitions. [2021-11-22 16:18:51,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-22 16:18:51,368 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:18:51,368 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] [2021-11-22 16:18:51,405 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeb962a8-df25-49a5-ad40-2e56f1ef9931/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2021-11-22 16:18:51,581 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeb962a8-df25-49a5-ad40-2e56f1ef9931/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2021-11-22 16:18:51,581 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)] === [2021-11-22 16:18:51,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:18:51,582 INFO L85 PathProgramCache]: Analyzing trace with hash -1627380482, now seen corresponding path program 1 times [2021-11-22 16:18:51,582 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:18:51,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574278180] [2021-11-22 16:18:51,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:18:51,582 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:18:51,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:18:52,127 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:18:52,127 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:18:52,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574278180] [2021-11-22 16:18:52,127 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574278180] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 16:18:52,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1068841705] [2021-11-22 16:18:52,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:18:52,128 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 16:18:52,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeb962a8-df25-49a5-ad40-2e56f1ef9931/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 16:18:52,130 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeb962a8-df25-49a5-ad40-2e56f1ef9931/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 16:18:52,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeb962a8-df25-49a5-ad40-2e56f1ef9931/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-22 16:18:52,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:18:52,207 INFO L263 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 47 conjunts are in the unsatisfiable core [2021-11-22 16:18:52,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 16:18:52,215 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 [2021-11-22 16:18:52,266 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-22 16:18:52,266 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 [2021-11-22 16:18:52,279 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 [2021-11-22 16:18:52,285 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 [2021-11-22 16:18:52,344 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-11-22 16:18:52,345 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 [2021-11-22 16:18:52,362 INFO L354 Elim1Store]: treesize reduction 43, result has 17.3 percent of original size [2021-11-22 16:18:52,362 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 [2021-11-22 16:18:52,559 INFO L354 Elim1Store]: treesize reduction 92, result has 15.6 percent of original size [2021-11-22 16:18:52,559 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 [2021-11-22 16:18:52,588 INFO L354 Elim1Store]: treesize reduction 84, result has 21.5 percent of original size [2021-11-22 16:18:52,589 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 [2021-11-22 16:18:53,593 INFO L354 Elim1Store]: treesize reduction 17, result has 5.6 percent of original size [2021-11-22 16:18:53,594 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 [2021-11-22 16:18:53,611 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-11-22 16:18:53,611 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 [2021-11-22 16:18:53,621 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-22 16:18:53,621 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 16:18:54,551 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-22 16:18:54,551 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 [2021-11-22 16:18:54,661 INFO L354 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2021-11-22 16:18:54,662 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 [2021-11-22 16:18:54,790 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-22 16:18:54,790 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1068841705] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-22 16:18:54,790 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-22 16:18:54,790 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [15, 15] total 31 [2021-11-22 16:18:54,790 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447514838] [2021-11-22 16:18:54,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:18:54,790 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-22 16:18:54,791 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:18:54,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-22 16:18:54,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=778, Unknown=0, NotChecked=0, Total=930 [2021-11-22 16:18:54,791 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) [2021-11-22 16:18:56,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:18:56,145 INFO L93 Difference]: Finished difference Result 374 states and 416 transitions. [2021-11-22 16:18:56,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-22 16:18:56,145 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 [2021-11-22 16:18:56,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:18:56,147 INFO L225 Difference]: With dead ends: 374 [2021-11-22 16:18:56,147 INFO L226 Difference]: Without dead ends: 374 [2021-11-22 16:18:56,148 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 98 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 661 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=302, Invalid=1860, Unknown=0, NotChecked=0, Total=2162 [2021-11-22 16:18:56,149 INFO L933 BasicCegarLoop]: 83 mSDtfsCounter, 298 mSDsluCounter, 631 mSDsCounter, 0 mSdLazyCounter, 685 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 714 SdHoareTripleChecker+Invalid, 726 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-22 16:18:56,149 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [298 Valid, 714 Invalid, 726 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 685 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-22 16:18:56,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2021-11-22 16:18:56,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 342. [2021-11-22 16:18:56,154 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) [2021-11-22 16:18:56,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 386 transitions. [2021-11-22 16:18:56,155 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 386 transitions. Word has length 57 [2021-11-22 16:18:56,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:18:56,156 INFO L470 AbstractCegarLoop]: Abstraction has 342 states and 386 transitions. [2021-11-22 16:18:56,156 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) [2021-11-22 16:18:56,156 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 386 transitions. [2021-11-22 16:18:56,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-22 16:18:56,157 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:18:56,157 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] [2021-11-22 16:18:56,205 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeb962a8-df25-49a5-ad40-2e56f1ef9931/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-22 16:18:56,385 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeb962a8-df25-49a5-ad40-2e56f1ef9931/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2021-11-22 16:18:56,385 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr55REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-22 16:18:56,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:18:56,386 INFO L85 PathProgramCache]: Analyzing trace with hash 1135767587, now seen corresponding path program 1 times [2021-11-22 16:18:56,386 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:18:56,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832757763] [2021-11-22 16:18:56,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:18:56,386 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:18:56,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:18:56,943 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:18:56,943 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:18:56,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832757763] [2021-11-22 16:18:56,943 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832757763] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 16:18:56,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1681973668] [2021-11-22 16:18:56,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:18:56,943 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 16:18:56,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeb962a8-df25-49a5-ad40-2e56f1ef9931/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 16:18:56,944 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeb962a8-df25-49a5-ad40-2e56f1ef9931/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 16:18:56,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeb962a8-df25-49a5-ad40-2e56f1ef9931/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-22 16:18:57,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:18:57,015 INFO L263 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 39 conjunts are in the unsatisfiable core [2021-11-22 16:18:57,017 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 16:18:57,026 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 [2021-11-22 16:18:57,074 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-22 16:18:57,074 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 [2021-11-22 16:18:57,120 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 [2021-11-22 16:18:57,192 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-11-22 16:18:57,193 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 [2021-11-22 16:18:57,348 INFO L354 Elim1Store]: treesize reduction 68, result has 20.0 percent of original size [2021-11-22 16:18:57,348 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 [2021-11-22 16:19:01,646 INFO L354 Elim1Store]: treesize reduction 54, result has 36.5 percent of original size [2021-11-22 16:19:01,646 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 [2021-11-22 16:19:01,785 INFO L354 Elim1Store]: treesize reduction 62, result has 28.7 percent of original size [2021-11-22 16:19:01,785 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 [2021-11-22 16:19:02,194 INFO L354 Elim1Store]: treesize reduction 136, result has 16.0 percent of original size [2021-11-22 16:19:02,194 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 [2021-11-22 16:19:03,099 INFO L354 Elim1Store]: treesize reduction 194, result has 17.4 percent of original size [2021-11-22 16:19:03,100 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 [2021-11-22 16:19:06,321 INFO L354 Elim1Store]: treesize reduction 196, result has 14.4 percent of original size [2021-11-22 16:19:06,322 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 [2021-11-22 16:19:09,906 INFO L354 Elim1Store]: treesize reduction 121, result has 6.2 percent of original size [2021-11-22 16:19:09,906 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 [2021-11-22 16:19:13,575 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:19:13,576 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 16:19:15,662 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~end~0#1.offset| Int)) (= (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base| (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#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))) 1)) is different from false [2021-11-22 16:19:52,859 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 [2021-11-22 16:20:34,033 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-11-22 16:20:34,034 INFO L186 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2021-11-22 16:20:34,034 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2021-11-22 16:20:34,034 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171541124] [2021-11-22 16:20:34,034 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2021-11-22 16:20:34,034 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-11-22 16:20:34,034 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:20:34,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-11-22 16:20:34,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=289, Invalid=1748, Unknown=41, NotChecked=178, Total=2256 [2021-11-22 16:20:34,036 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) [2021-11-22 16:20:44,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:20:44,535 INFO L93 Difference]: Finished difference Result 493 states and 536 transitions. [2021-11-22 16:20:44,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-22 16:20:44,536 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 [2021-11-22 16:20:44,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:20:44,538 INFO L225 Difference]: With dead ends: 493 [2021-11-22 16:20:44,538 INFO L226 Difference]: Without dead ends: 493 [2021-11-22 16:20:44,539 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 83 SyntacticMatches, 1 SemanticMatches, 63 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 1035 ImplicationChecksByTransitivity, 95.1s TimeCoverageRelationStatistics Valid=557, Invalid=3312, Unknown=45, NotChecked=246, Total=4160 [2021-11-22 16:20:44,540 INFO L933 BasicCegarLoop]: 130 mSDtfsCounter, 528 mSDsluCounter, 1226 mSDsCounter, 0 mSdLazyCounter, 1368 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 528 SdHoareTripleChecker+Valid, 1356 SdHoareTripleChecker+Invalid, 1438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 1368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-11-22 16:20:44,540 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [528 Valid, 1356 Invalid, 1438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 1368 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-11-22 16:20:44,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2021-11-22 16:20:44,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 342. [2021-11-22 16:20:44,547 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) [2021-11-22 16:20:44,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 385 transitions. [2021-11-22 16:20:44,548 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 385 transitions. Word has length 59 [2021-11-22 16:20:44,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:20:44,549 INFO L470 AbstractCegarLoop]: Abstraction has 342 states and 385 transitions. [2021-11-22 16:20:44,549 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) [2021-11-22 16:20:44,549 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 385 transitions. [2021-11-22 16:20:44,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-22 16:20:44,550 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:20:44,550 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] [2021-11-22 16:20:44,585 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeb962a8-df25-49a5-ad40-2e56f1ef9931/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-22 16:20:44,765 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeb962a8-df25-49a5-ad40-2e56f1ef9931/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2021-11-22 16:20:44,766 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr56REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 82 more)] === [2021-11-22 16:20:44,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:20:44,766 INFO L85 PathProgramCache]: Analyzing trace with hash 1135767588, now seen corresponding path program 1 times [2021-11-22 16:20:44,766 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:20:44,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123343225] [2021-11-22 16:20:44,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:20:44,766 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:20:44,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:20:45,601 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:20:45,602 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:20:45,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123343225] [2021-11-22 16:20:45,602 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123343225] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-22 16:20:45,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1570209736] [2021-11-22 16:20:45,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:20:45,602 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-22 16:20:45,602 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeb962a8-df25-49a5-ad40-2e56f1ef9931/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 16:20:45,603 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeb962a8-df25-49a5-ad40-2e56f1ef9931/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-22 16:20:45,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeb962a8-df25-49a5-ad40-2e56f1ef9931/bin/uautomizer-w2VwFs6gM0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-22 16:20:45,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:20:45,685 INFO L263 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 55 conjunts are in the unsatisfiable core [2021-11-22 16:20:45,688 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 16:20:45,700 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 [2021-11-22 16:20:45,772 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-22 16:20:45,773 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 [2021-11-22 16:20:45,791 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 [2021-11-22 16:20:45,868 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 [2021-11-22 16:20:45,883 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 [2021-11-22 16:20:46,058 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-11-22 16:20:46,058 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 [2021-11-22 16:20:46,083 INFO L354 Elim1Store]: treesize reduction 43, result has 17.3 percent of original size [2021-11-22 16:20:46,084 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 [2021-11-22 16:20:46,430 INFO L354 Elim1Store]: treesize reduction 68, result has 20.0 percent of original size [2021-11-22 16:20:46,431 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 [2021-11-22 16:20:46,478 INFO L354 Elim1Store]: treesize reduction 92, result has 20.0 percent of original size [2021-11-22 16:20:46,479 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 [2021-11-22 16:20:50,953 INFO L354 Elim1Store]: treesize reduction 8, result has 65.2 percent of original size [2021-11-22 16:20:50,953 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 [2021-11-22 16:20:50,961 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 [2021-11-22 16:20:51,094 INFO L354 Elim1Store]: treesize reduction 62, result has 28.7 percent of original size [2021-11-22 16:20:51,094 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 [2021-11-22 16:20:51,119 INFO L354 Elim1Store]: treesize reduction 68, result has 21.8 percent of original size [2021-11-22 16:20:51,120 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 [2021-11-22 16:20:51,619 INFO L354 Elim1Store]: treesize reduction 136, result has 16.0 percent of original size [2021-11-22 16:20:51,620 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 [2021-11-22 16:20:51,665 INFO L354 Elim1Store]: treesize reduction 160, result has 14.0 percent of original size [2021-11-22 16:20:51,665 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 [2021-11-22 16:20:52,962 INFO L354 Elim1Store]: treesize reduction 194, result has 17.4 percent of original size [2021-11-22 16:20:52,962 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 [2021-11-22 16:20:53,033 INFO L354 Elim1Store]: treesize reduction 218, result has 17.1 percent of original size [2021-11-22 16:20:53,034 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 [2021-11-22 16:20:55,653 INFO L354 Elim1Store]: treesize reduction 196, result has 14.4 percent of original size [2021-11-22 16:20:55,653 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 [2021-11-22 16:20:55,713 INFO L354 Elim1Store]: treesize reduction 236, result has 13.6 percent of original size [2021-11-22 16:20:55,713 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 [2021-11-22 16:21:01,940 INFO L354 Elim1Store]: treesize reduction 121, result has 6.2 percent of original size [2021-11-22 16:21:01,940 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 [2021-11-22 16:21:01,951 INFO L354 Elim1Store]: treesize reduction 128, result has 0.8 percent of original size [2021-11-22 16:21:01,951 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 [2021-11-22 16:21:02,564 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:21:02,564 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 16:21:05,022 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|ULTIMATE.start_main_~end~0#1.offset| Int)) (<= 0 (+ (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~end~0#1.base| (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset| 0) (+ 8 |ULTIMATE.start_main_~end~0#1.offset|) 0)) |c_ULTIMATE.start_main_~list~0#1.base|) (+ |c_ULTIMATE.start_main_~list~0#1.offset| 8)) 8))) (forall ((|ULTIMATE.start_main_~end~0#1.offset| Int)) (let ((.cse0 (+ 8 |ULTIMATE.start_main_~end~0#1.offset|)) (.cse1 (+ |c_ULTIMATE.start_main_~list~0#1.offset| 8))) (<= (+ (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~end~0#1.base| (store (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset| 0) .cse0 0)) |c_ULTIMATE.start_main_~list~0#1.base|) .cse1) 12) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base| (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#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 [2021-11-22 16:21:30,656 WARN L227 SmtUtils]: Spent 6.04s 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) [2021-11-22 16:21:32,673 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_subst_2 Int)) (<= 0 (+ (select (select (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|))) (store |c_#memory_$Pointer$.offset| .cse0 (store (store (select |c_#memory_$Pointer$.offset| .cse0) v_subst_2 0) (+ 8 v_subst_2) 0))) |c_ULTIMATE.start_main_~list~0#1.base|) (+ |c_ULTIMATE.start_main_~list~0#1.offset| 8)) 8))) (forall ((v_subst_1 Int)) (let ((.cse1 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|)) (.cse2 (+ 8 v_subst_1)) (.cse3 (+ |c_ULTIMATE.start_main_~list~0#1.offset| 8))) (<= (+ 12 (select (select (store |c_#memory_$Pointer$.offset| .cse1 (store (store (select |c_#memory_$Pointer$.offset| .cse1) v_subst_1 0) .cse2 0)) |c_ULTIMATE.start_main_~list~0#1.base|) .cse3)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| .cse1 (store (store (select |c_#memory_$Pointer$.base| .cse1) v_subst_1 0) .cse2 0)) |c_ULTIMATE.start_main_~list~0#1.base|) .cse3)))))) is different from false [2021-11-22 16:21:34,712 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 [2021-11-22 16:22:03,167 WARN L227 SmtUtils]: Spent 5.99s 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) [2021-11-22 16:23:03,452 WARN L227 SmtUtils]: Spent 10.05s on a formula simplification that was a NOOP. DAG size: 59 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-22 16:25:26,221 INFO L354 Elim1Store]: treesize reduction 658, result has 26.3 percent of original size [2021-11-22 16:25:26,222 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