./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem02_label55.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c946a80-a534-41cc-9807-c3208d793acf/bin/utaipan-tZwUujhuQw/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c946a80-a534-41cc-9807-c3208d793acf/bin/utaipan-tZwUujhuQw/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c946a80-a534-41cc-9807-c3208d793acf/bin/utaipan-tZwUujhuQw/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c946a80-a534-41cc-9807-c3208d793acf/bin/utaipan-tZwUujhuQw/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem02_label55.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c946a80-a534-41cc-9807-c3208d793acf/bin/utaipan-tZwUujhuQw/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c946a80-a534-41cc-9807-c3208d793acf/bin/utaipan-tZwUujhuQw --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8601bc506460b86c86c44bb88543b6ddef5f967e49099ec52accd1d75c17e018 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-20 05:23:58,827 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-20 05:23:58,830 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-20 05:23:58,884 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-20 05:23:58,885 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-20 05:23:58,889 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-20 05:23:58,891 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-20 05:23:58,895 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-20 05:23:58,897 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-20 05:23:58,903 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-20 05:23:58,904 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-20 05:23:58,906 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-20 05:23:58,907 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-20 05:23:58,910 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-20 05:23:58,912 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-20 05:23:58,920 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-20 05:23:58,922 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-20 05:23:58,923 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-20 05:23:58,925 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-20 05:23:58,933 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-20 05:23:58,935 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-20 05:23:58,936 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-20 05:23:58,940 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-20 05:23:58,941 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-20 05:23:58,950 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-20 05:23:58,950 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-20 05:23:58,951 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-20 05:23:58,953 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-20 05:23:58,953 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-20 05:23:58,955 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-20 05:23:58,956 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-20 05:23:58,957 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-20 05:23:58,959 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-20 05:23:58,960 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-20 05:23:58,962 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-20 05:23:58,962 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-20 05:23:58,963 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-20 05:23:58,963 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-20 05:23:58,964 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-20 05:23:58,965 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-20 05:23:58,966 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-20 05:23:58,967 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c946a80-a534-41cc-9807-c3208d793acf/bin/utaipan-tZwUujhuQw/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-20 05:23:59,010 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-20 05:23:59,010 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-20 05:23:59,011 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-20 05:23:59,012 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-20 05:23:59,012 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-20 05:23:59,012 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-20 05:23:59,012 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-20 05:23:59,013 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-20 05:23:59,013 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-20 05:23:59,013 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-20 05:23:59,014 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-20 05:23:59,014 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-20 05:23:59,015 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-20 05:23:59,015 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-20 05:23:59,015 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-20 05:23:59,016 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-20 05:23:59,016 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-20 05:23:59,016 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-20 05:23:59,017 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-20 05:23:59,017 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-20 05:23:59,017 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-20 05:23:59,017 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-20 05:23:59,017 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-20 05:23:59,018 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-20 05:23:59,018 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-20 05:23:59,018 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-20 05:23:59,018 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-20 05:23:59,019 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-20 05:23:59,019 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-20 05:23:59,020 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-20 05:23:59,021 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-20 05:23:59,021 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-20 05:23:59,021 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-20 05:23:59,022 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-20 05:23:59,022 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-20 05:23:59,022 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-20 05:23:59,022 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-20 05:23:59,022 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-20 05:23:59,023 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-20 05:23:59,023 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_4c946a80-a534-41cc-9807-c3208d793acf/bin/utaipan-tZwUujhuQw/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c946a80-a534-41cc-9807-c3208d793acf/bin/utaipan-tZwUujhuQw Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8601bc506460b86c86c44bb88543b6ddef5f967e49099ec52accd1d75c17e018 [2021-10-20 05:23:59,268 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-20 05:23:59,294 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-20 05:23:59,297 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-20 05:23:59,298 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-20 05:23:59,299 INFO L275 PluginConnector]: CDTParser initialized [2021-10-20 05:23:59,300 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c946a80-a534-41cc-9807-c3208d793acf/bin/utaipan-tZwUujhuQw/../../sv-benchmarks/c/eca-rers2012/Problem02_label55.c [2021-10-20 05:23:59,407 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c946a80-a534-41cc-9807-c3208d793acf/bin/utaipan-tZwUujhuQw/data/4a48cb773/b636bca122344831b5cec1dd62ff75d9/FLAGd680fa5de [2021-10-20 05:23:59,958 INFO L306 CDTParser]: Found 1 translation units. [2021-10-20 05:23:59,958 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c946a80-a534-41cc-9807-c3208d793acf/sv-benchmarks/c/eca-rers2012/Problem02_label55.c [2021-10-20 05:23:59,972 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c946a80-a534-41cc-9807-c3208d793acf/bin/utaipan-tZwUujhuQw/data/4a48cb773/b636bca122344831b5cec1dd62ff75d9/FLAGd680fa5de [2021-10-20 05:24:00,246 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c946a80-a534-41cc-9807-c3208d793acf/bin/utaipan-tZwUujhuQw/data/4a48cb773/b636bca122344831b5cec1dd62ff75d9 [2021-10-20 05:24:00,250 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-20 05:24:00,259 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-20 05:24:00,263 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-20 05:24:00,264 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-20 05:24:00,268 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-20 05:24:00,269 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:24:00" (1/1) ... [2021-10-20 05:24:00,270 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@aee9888 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:24:00, skipping insertion in model container [2021-10-20 05:24:00,270 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:24:00" (1/1) ... [2021-10-20 05:24:00,276 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-20 05:24:00,343 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-20 05:24:00,675 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c946a80-a534-41cc-9807-c3208d793acf/sv-benchmarks/c/eca-rers2012/Problem02_label55.c[17358,17371] [2021-10-20 05:24:00,708 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-20 05:24:00,732 INFO L203 MainTranslator]: Completed pre-run [2021-10-20 05:24:00,830 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c946a80-a534-41cc-9807-c3208d793acf/sv-benchmarks/c/eca-rers2012/Problem02_label55.c[17358,17371] [2021-10-20 05:24:00,845 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-20 05:24:00,876 INFO L208 MainTranslator]: Completed translation [2021-10-20 05:24:00,877 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:24:00 WrapperNode [2021-10-20 05:24:00,877 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-20 05:24:00,878 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-20 05:24:00,878 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-20 05:24:00,878 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-20 05:24:00,887 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:24:00" (1/1) ... [2021-10-20 05:24:00,917 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:24:00" (1/1) ... [2021-10-20 05:24:00,978 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-20 05:24:00,979 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-20 05:24:00,980 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-20 05:24:00,980 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-20 05:24:00,989 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:24:00" (1/1) ... [2021-10-20 05:24:00,999 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:24:00" (1/1) ... [2021-10-20 05:24:01,004 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:24:00" (1/1) ... [2021-10-20 05:24:01,005 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:24:00" (1/1) ... [2021-10-20 05:24:01,030 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:24:00" (1/1) ... [2021-10-20 05:24:01,040 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:24:00" (1/1) ... [2021-10-20 05:24:01,048 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:24:00" (1/1) ... [2021-10-20 05:24:01,057 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-20 05:24:01,058 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-20 05:24:01,058 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-20 05:24:01,058 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-20 05:24:01,059 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:24:00" (1/1) ... [2021-10-20 05:24:01,085 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-20 05:24:01,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c946a80-a534-41cc-9807-c3208d793acf/bin/utaipan-tZwUujhuQw/z3 [2021-10-20 05:24:01,125 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c946a80-a534-41cc-9807-c3208d793acf/bin/utaipan-tZwUujhuQw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-20 05:24:01,157 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c946a80-a534-41cc-9807-c3208d793acf/bin/utaipan-tZwUujhuQw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-20 05:24:01,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-20 05:24:01,176 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-20 05:24:01,177 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-20 05:24:01,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-20 05:24:03,053 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-20 05:24:03,053 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-20 05:24:03,057 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:24:03 BoogieIcfgContainer [2021-10-20 05:24:03,057 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-20 05:24:03,060 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-20 05:24:03,060 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-20 05:24:03,063 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-20 05:24:03,063 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 05:24:00" (1/3) ... [2021-10-20 05:24:03,064 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ebf0006 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 05:24:03, skipping insertion in model container [2021-10-20 05:24:03,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:24:00" (2/3) ... [2021-10-20 05:24:03,065 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ebf0006 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 05:24:03, skipping insertion in model container [2021-10-20 05:24:03,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:24:03" (3/3) ... [2021-10-20 05:24:03,067 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem02_label55.c [2021-10-20 05:24:03,076 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-20 05:24:03,076 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-20 05:24:03,139 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-20 05:24:03,148 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-20 05:24:03,148 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-20 05:24:03,171 INFO L276 IsEmpty]: Start isEmpty. Operand has 85 states, 83 states have (on average 1.9518072289156627) internal successors, (162), 84 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:24:03,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-10-20 05:24:03,184 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:24:03,185 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:24:03,186 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:24:03,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:24:03,199 INFO L82 PathProgramCache]: Analyzing trace with hash 1243323571, now seen corresponding path program 1 times [2021-10-20 05:24:03,228 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-20 05:24:03,228 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109547737] [2021-10-20 05:24:03,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:24:03,230 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-20 05:24:03,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:24:03,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:24:03,575 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-20 05:24:03,575 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109547737] [2021-10-20 05:24:03,576 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109547737] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-20 05:24:03,576 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:24:03,576 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-20 05:24:03,578 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947750226] [2021-10-20 05:24:03,583 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-20 05:24:03,583 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-20 05:24:03,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-20 05:24:03,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 05:24:03,599 INFO L87 Difference]: Start difference. First operand has 85 states, 83 states have (on average 1.9518072289156627) internal successors, (162), 84 states have internal predecessors, (162), 0 states have call successors, (0), 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, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:24:04,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:24:04,043 INFO L93 Difference]: Finished difference Result 251 states and 482 transitions. [2021-10-20 05:24:04,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-20 05:24:04,045 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2021-10-20 05:24:04,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:24:04,057 INFO L225 Difference]: With dead ends: 251 [2021-10-20 05:24:04,075 INFO L226 Difference]: Without dead ends: 163 [2021-10-20 05:24:04,078 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 05:24:04,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2021-10-20 05:24:04,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 163. [2021-10-20 05:24:04,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 162 states have (on average 1.8395061728395061) internal successors, (298), 162 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:24:04,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 298 transitions. [2021-10-20 05:24:04,171 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 298 transitions. Word has length 80 [2021-10-20 05:24:04,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:24:04,173 INFO L470 AbstractCegarLoop]: Abstraction has 163 states and 298 transitions. [2021-10-20 05:24:04,173 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:24:04,173 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 298 transitions. [2021-10-20 05:24:04,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-10-20 05:24:04,178 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:24:04,178 INFO L512 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:24:04,178 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-20 05:24:04,179 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:24:04,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:24:04,179 INFO L82 PathProgramCache]: Analyzing trace with hash 1833065640, now seen corresponding path program 1 times [2021-10-20 05:24:04,180 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-20 05:24:04,180 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186346710] [2021-10-20 05:24:04,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:24:04,181 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-20 05:24:04,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:24:04,269 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:24:04,269 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-20 05:24:04,270 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186346710] [2021-10-20 05:24:04,270 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186346710] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-20 05:24:04,270 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:24:04,270 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-20 05:24:04,271 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421187210] [2021-10-20 05:24:04,272 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-20 05:24:04,272 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-20 05:24:04,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-20 05:24:04,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 05:24:04,274 INFO L87 Difference]: Start difference. First operand 163 states and 298 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 2 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:24:04,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:24:04,690 INFO L93 Difference]: Finished difference Result 485 states and 891 transitions. [2021-10-20 05:24:04,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-20 05:24:04,692 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 2 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2021-10-20 05:24:04,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:24:04,696 INFO L225 Difference]: With dead ends: 485 [2021-10-20 05:24:04,696 INFO L226 Difference]: Without dead ends: 323 [2021-10-20 05:24:04,698 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 05:24:04,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2021-10-20 05:24:04,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 323. [2021-10-20 05:24:04,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 322 states have (on average 1.515527950310559) internal successors, (488), 322 states have internal predecessors, (488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:24:04,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 488 transitions. [2021-10-20 05:24:04,728 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 488 transitions. Word has length 84 [2021-10-20 05:24:04,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:24:04,728 INFO L470 AbstractCegarLoop]: Abstraction has 323 states and 488 transitions. [2021-10-20 05:24:04,728 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 2 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:24:04,728 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 488 transitions. [2021-10-20 05:24:04,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-10-20 05:24:04,734 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:24:04,734 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:24:04,734 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-20 05:24:04,735 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:24:04,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:24:04,735 INFO L82 PathProgramCache]: Analyzing trace with hash -2045182483, now seen corresponding path program 1 times [2021-10-20 05:24:04,736 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-20 05:24:04,736 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195148960] [2021-10-20 05:24:04,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:24:04,736 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-20 05:24:04,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:24:04,811 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:24:04,811 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-20 05:24:04,812 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195148960] [2021-10-20 05:24:04,812 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195148960] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-20 05:24:04,812 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:24:04,812 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-20 05:24:04,813 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582916827] [2021-10-20 05:24:04,813 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-20 05:24:04,814 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-20 05:24:04,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-20 05:24:04,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 05:24:04,815 INFO L87 Difference]: Start difference. First operand 323 states and 488 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:24:05,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:24:05,170 INFO L93 Difference]: Finished difference Result 805 states and 1271 transitions. [2021-10-20 05:24:05,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-20 05:24:05,171 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2021-10-20 05:24:05,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:24:05,175 INFO L225 Difference]: With dead ends: 805 [2021-10-20 05:24:05,175 INFO L226 Difference]: Without dead ends: 483 [2021-10-20 05:24:05,177 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 05:24:05,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2021-10-20 05:24:05,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 483. [2021-10-20 05:24:05,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 482 states have (on average 1.4066390041493777) internal successors, (678), 482 states have internal predecessors, (678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:24:05,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 678 transitions. [2021-10-20 05:24:05,241 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 678 transitions. Word has length 89 [2021-10-20 05:24:05,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:24:05,242 INFO L470 AbstractCegarLoop]: Abstraction has 483 states and 678 transitions. [2021-10-20 05:24:05,242 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:24:05,242 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 678 transitions. [2021-10-20 05:24:05,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-10-20 05:24:05,254 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:24:05,255 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:24:05,255 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-20 05:24:05,255 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:24:05,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:24:05,256 INFO L82 PathProgramCache]: Analyzing trace with hash 2122120642, now seen corresponding path program 1 times [2021-10-20 05:24:05,256 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-20 05:24:05,256 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716523710] [2021-10-20 05:24:05,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:24:05,257 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-20 05:24:05,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:24:05,480 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:24:05,484 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-20 05:24:05,485 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716523710] [2021-10-20 05:24:05,485 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716523710] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-20 05:24:05,486 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:24:05,486 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-20 05:24:05,486 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090297188] [2021-10-20 05:24:05,487 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-20 05:24:05,488 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-20 05:24:05,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-20 05:24:05,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 05:24:05,490 INFO L87 Difference]: Start difference. First operand 483 states and 678 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:24:05,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:24:05,951 INFO L93 Difference]: Finished difference Result 1205 states and 1701 transitions. [2021-10-20 05:24:05,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-20 05:24:05,952 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2021-10-20 05:24:05,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:24:05,957 INFO L225 Difference]: With dead ends: 1205 [2021-10-20 05:24:05,957 INFO L226 Difference]: Without dead ends: 723 [2021-10-20 05:24:05,958 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 05:24:05,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 723 states. [2021-10-20 05:24:05,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 723 to 723. [2021-10-20 05:24:05,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 723 states, 722 states have (on average 1.31994459833795) internal successors, (953), 722 states have internal predecessors, (953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:24:05,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 723 states to 723 states and 953 transitions. [2021-10-20 05:24:05,985 INFO L78 Accepts]: Start accepts. Automaton has 723 states and 953 transitions. Word has length 89 [2021-10-20 05:24:05,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:24:05,986 INFO L470 AbstractCegarLoop]: Abstraction has 723 states and 953 transitions. [2021-10-20 05:24:05,986 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:24:05,986 INFO L276 IsEmpty]: Start isEmpty. Operand 723 states and 953 transitions. [2021-10-20 05:24:05,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-10-20 05:24:05,989 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:24:05,989 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:24:05,989 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-20 05:24:05,990 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:24:05,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:24:05,990 INFO L82 PathProgramCache]: Analyzing trace with hash 131051180, now seen corresponding path program 1 times [2021-10-20 05:24:05,990 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-20 05:24:05,990 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047979817] [2021-10-20 05:24:05,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:24:05,991 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-20 05:24:06,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:24:06,094 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-20 05:24:06,094 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-20 05:24:06,095 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047979817] [2021-10-20 05:24:06,095 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047979817] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-20 05:24:06,095 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:24:06,095 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-20 05:24:06,096 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801794680] [2021-10-20 05:24:06,097 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-20 05:24:06,097 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-20 05:24:06,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-20 05:24:06,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 05:24:06,098 INFO L87 Difference]: Start difference. First operand 723 states and 953 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:24:06,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:24:06,452 INFO L93 Difference]: Finished difference Result 1765 states and 2386 transitions. [2021-10-20 05:24:06,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-20 05:24:06,452 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-10-20 05:24:06,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:24:06,459 INFO L225 Difference]: With dead ends: 1765 [2021-10-20 05:24:06,459 INFO L226 Difference]: Without dead ends: 1043 [2021-10-20 05:24:06,461 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 05:24:06,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1043 states. [2021-10-20 05:24:06,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1043 to 1043. [2021-10-20 05:24:06,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1043 states, 1042 states have (on average 1.2984644913627639) internal successors, (1353), 1042 states have internal predecessors, (1353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:24:06,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1043 states to 1043 states and 1353 transitions. [2021-10-20 05:24:06,521 INFO L78 Accepts]: Start accepts. Automaton has 1043 states and 1353 transitions. Word has length 94 [2021-10-20 05:24:06,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:24:06,521 INFO L470 AbstractCegarLoop]: Abstraction has 1043 states and 1353 transitions. [2021-10-20 05:24:06,522 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:24:06,522 INFO L276 IsEmpty]: Start isEmpty. Operand 1043 states and 1353 transitions. [2021-10-20 05:24:06,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-10-20 05:24:06,527 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:24:06,527 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:24:06,527 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-20 05:24:06,528 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:24:06,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:24:06,529 INFO L82 PathProgramCache]: Analyzing trace with hash 588888816, now seen corresponding path program 1 times [2021-10-20 05:24:06,529 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-20 05:24:06,529 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913499575] [2021-10-20 05:24:06,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:24:06,530 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-20 05:24:06,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:24:06,590 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:24:06,590 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-20 05:24:06,590 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913499575] [2021-10-20 05:24:06,591 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913499575] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-20 05:24:06,591 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:24:06,591 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-20 05:24:06,591 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145931985] [2021-10-20 05:24:06,592 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-20 05:24:06,592 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-20 05:24:06,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-20 05:24:06,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 05:24:06,594 INFO L87 Difference]: Start difference. First operand 1043 states and 1353 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:24:06,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:24:06,925 INFO L93 Difference]: Finished difference Result 1925 states and 2530 transitions. [2021-10-20 05:24:06,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-20 05:24:06,926 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-10-20 05:24:06,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:24:06,931 INFO L225 Difference]: With dead ends: 1925 [2021-10-20 05:24:06,932 INFO L226 Difference]: Without dead ends: 883 [2021-10-20 05:24:06,934 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 05:24:06,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883 states. [2021-10-20 05:24:06,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 883. [2021-10-20 05:24:06,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 883 states, 882 states have (on average 1.2732426303854876) internal successors, (1123), 882 states have internal predecessors, (1123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:24:06,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 1123 transitions. [2021-10-20 05:24:06,961 INFO L78 Accepts]: Start accepts. Automaton has 883 states and 1123 transitions. Word has length 113 [2021-10-20 05:24:06,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:24:06,961 INFO L470 AbstractCegarLoop]: Abstraction has 883 states and 1123 transitions. [2021-10-20 05:24:06,962 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:24:06,962 INFO L276 IsEmpty]: Start isEmpty. Operand 883 states and 1123 transitions. [2021-10-20 05:24:06,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-10-20 05:24:06,965 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:24:06,966 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:24:06,966 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-20 05:24:06,966 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:24:06,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:24:06,967 INFO L82 PathProgramCache]: Analyzing trace with hash 1360777241, now seen corresponding path program 1 times [2021-10-20 05:24:06,967 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-20 05:24:06,971 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010090162] [2021-10-20 05:24:06,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:24:06,972 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-20 05:24:06,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:24:07,063 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-10-20 05:24:07,063 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-20 05:24:07,063 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010090162] [2021-10-20 05:24:07,064 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010090162] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-20 05:24:07,064 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:24:07,064 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-20 05:24:07,064 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942094117] [2021-10-20 05:24:07,065 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-20 05:24:07,065 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-20 05:24:07,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-20 05:24:07,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 05:24:07,066 INFO L87 Difference]: Start difference. First operand 883 states and 1123 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:24:07,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:24:07,382 INFO L93 Difference]: Finished difference Result 1765 states and 2245 transitions. [2021-10-20 05:24:07,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-20 05:24:07,382 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2021-10-20 05:24:07,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:24:07,388 INFO L225 Difference]: With dead ends: 1765 [2021-10-20 05:24:07,388 INFO L226 Difference]: Without dead ends: 883 [2021-10-20 05:24:07,389 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 05:24:07,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883 states. [2021-10-20 05:24:07,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 883. [2021-10-20 05:24:07,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 883 states, 882 states have (on average 1.2392290249433107) internal successors, (1093), 882 states have internal predecessors, (1093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:24:07,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 1093 transitions. [2021-10-20 05:24:07,427 INFO L78 Accepts]: Start accepts. Automaton has 883 states and 1093 transitions. Word has length 135 [2021-10-20 05:24:07,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:24:07,428 INFO L470 AbstractCegarLoop]: Abstraction has 883 states and 1093 transitions. [2021-10-20 05:24:07,428 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:24:07,429 INFO L276 IsEmpty]: Start isEmpty. Operand 883 states and 1093 transitions. [2021-10-20 05:24:07,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2021-10-20 05:24:07,432 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:24:07,432 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:24:07,432 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-20 05:24:07,433 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:24:07,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:24:07,433 INFO L82 PathProgramCache]: Analyzing trace with hash 443079659, now seen corresponding path program 1 times [2021-10-20 05:24:07,434 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-20 05:24:07,434 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701766657] [2021-10-20 05:24:07,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:24:07,434 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-20 05:24:07,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:24:07,493 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:24:07,493 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-20 05:24:07,493 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701766657] [2021-10-20 05:24:07,494 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701766657] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-20 05:24:07,494 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:24:07,494 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-20 05:24:07,494 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406907213] [2021-10-20 05:24:07,495 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-20 05:24:07,495 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-20 05:24:07,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-20 05:24:07,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 05:24:07,496 INFO L87 Difference]: Start difference. First operand 883 states and 1093 transitions. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 2 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:24:07,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:24:07,865 INFO L93 Difference]: Finished difference Result 2325 states and 2921 transitions. [2021-10-20 05:24:07,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-20 05:24:07,866 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 2 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2021-10-20 05:24:07,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:24:07,874 INFO L225 Difference]: With dead ends: 2325 [2021-10-20 05:24:07,874 INFO L226 Difference]: Without dead ends: 1443 [2021-10-20 05:24:07,876 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 05:24:07,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1443 states. [2021-10-20 05:24:07,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1443 to 1443. [2021-10-20 05:24:07,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1443 states, 1442 states have (on average 1.2295423023578362) internal successors, (1773), 1442 states have internal predecessors, (1773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:24:07,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1443 states to 1443 states and 1773 transitions. [2021-10-20 05:24:07,914 INFO L78 Accepts]: Start accepts. Automaton has 1443 states and 1773 transitions. Word has length 141 [2021-10-20 05:24:07,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:24:07,916 INFO L470 AbstractCegarLoop]: Abstraction has 1443 states and 1773 transitions. [2021-10-20 05:24:07,916 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 2 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:24:07,917 INFO L276 IsEmpty]: Start isEmpty. Operand 1443 states and 1773 transitions. [2021-10-20 05:24:07,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2021-10-20 05:24:07,921 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:24:07,921 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:24:07,921 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-20 05:24:07,921 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:24:07,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:24:07,922 INFO L82 PathProgramCache]: Analyzing trace with hash 56928935, now seen corresponding path program 1 times [2021-10-20 05:24:07,922 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-20 05:24:07,923 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121083586] [2021-10-20 05:24:07,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:24:07,923 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-20 05:24:07,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:24:08,016 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 98 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-20 05:24:08,016 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-20 05:24:08,016 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121083586] [2021-10-20 05:24:08,017 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121083586] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-20 05:24:08,017 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:24:08,017 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-20 05:24:08,020 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197625048] [2021-10-20 05:24:08,021 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-20 05:24:08,021 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-20 05:24:08,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-20 05:24:08,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 05:24:08,027 INFO L87 Difference]: Start difference. First operand 1443 states and 1773 transitions. Second operand has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:24:08,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:24:08,386 INFO L93 Difference]: Finished difference Result 3525 states and 4456 transitions. [2021-10-20 05:24:08,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-20 05:24:08,393 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 146 [2021-10-20 05:24:08,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:24:08,405 INFO L225 Difference]: With dead ends: 3525 [2021-10-20 05:24:08,405 INFO L226 Difference]: Without dead ends: 2083 [2021-10-20 05:24:08,408 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 05:24:08,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2083 states. [2021-10-20 05:24:08,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2083 to 2083. [2021-10-20 05:24:08,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2083 states, 2082 states have (on average 1.2459173871277618) internal successors, (2594), 2082 states have internal predecessors, (2594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:24:08,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2083 states to 2083 states and 2594 transitions. [2021-10-20 05:24:08,486 INFO L78 Accepts]: Start accepts. Automaton has 2083 states and 2594 transitions. Word has length 146 [2021-10-20 05:24:08,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:24:08,487 INFO L470 AbstractCegarLoop]: Abstraction has 2083 states and 2594 transitions. [2021-10-20 05:24:08,487 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:24:08,487 INFO L276 IsEmpty]: Start isEmpty. Operand 2083 states and 2594 transitions. [2021-10-20 05:24:08,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2021-10-20 05:24:08,492 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:24:08,493 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:24:08,493 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-20 05:24:08,493 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:24:08,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:24:08,494 INFO L82 PathProgramCache]: Analyzing trace with hash -1148152170, now seen corresponding path program 1 times [2021-10-20 05:24:08,494 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-20 05:24:08,495 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942965970] [2021-10-20 05:24:08,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:24:08,496 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-20 05:24:08,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:24:08,579 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 100 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-10-20 05:24:08,579 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-20 05:24:08,579 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942965970] [2021-10-20 05:24:08,579 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942965970] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-20 05:24:08,580 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:24:08,580 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-20 05:24:08,580 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408686075] [2021-10-20 05:24:08,580 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-20 05:24:08,581 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-20 05:24:08,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-20 05:24:08,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 05:24:08,582 INFO L87 Difference]: Start difference. First operand 2083 states and 2594 transitions. Second operand has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:24:08,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:24:08,939 INFO L93 Difference]: Finished difference Result 4645 states and 5818 transitions. [2021-10-20 05:24:08,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-20 05:24:08,939 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 155 [2021-10-20 05:24:08,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:24:08,953 INFO L225 Difference]: With dead ends: 4645 [2021-10-20 05:24:08,953 INFO L226 Difference]: Without dead ends: 2323 [2021-10-20 05:24:08,956 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 05:24:08,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2323 states. [2021-10-20 05:24:09,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2323 to 2163. [2021-10-20 05:24:09,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2163 states, 2162 states have (on average 1.2243293246993525) internal successors, (2647), 2162 states have internal predecessors, (2647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:24:09,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2163 states to 2163 states and 2647 transitions. [2021-10-20 05:24:09,023 INFO L78 Accepts]: Start accepts. Automaton has 2163 states and 2647 transitions. Word has length 155 [2021-10-20 05:24:09,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:24:09,023 INFO L470 AbstractCegarLoop]: Abstraction has 2163 states and 2647 transitions. [2021-10-20 05:24:09,024 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:24:09,024 INFO L276 IsEmpty]: Start isEmpty. Operand 2163 states and 2647 transitions. [2021-10-20 05:24:09,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2021-10-20 05:24:09,030 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:24:09,030 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:24:09,030 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-20 05:24:09,031 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:24:09,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:24:09,031 INFO L82 PathProgramCache]: Analyzing trace with hash -1447480344, now seen corresponding path program 1 times [2021-10-20 05:24:09,031 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-20 05:24:09,034 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697310142] [2021-10-20 05:24:09,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:24:09,034 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-20 05:24:09,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:24:09,217 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 68 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:24:09,217 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-20 05:24:09,217 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697310142] [2021-10-20 05:24:09,218 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697310142] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-20 05:24:09,218 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1452937445] [2021-10-20 05:24:09,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:24:09,218 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-20 05:24:09,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c946a80-a534-41cc-9807-c3208d793acf/bin/utaipan-tZwUujhuQw/z3 [2021-10-20 05:24:09,224 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c946a80-a534-41cc-9807-c3208d793acf/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-20 05:24:09,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c946a80-a534-41cc-9807-c3208d793acf/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-20 05:24:09,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:24:09,369 INFO L263 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-20 05:24:09,380 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:24:09,945 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-10-20 05:24:09,945 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:24:10,332 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-10-20 05:24:10,333 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1452937445] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-20 05:24:10,333 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2021-10-20 05:24:10,333 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [4] total 6 [2021-10-20 05:24:10,333 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902227715] [2021-10-20 05:24:10,334 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-20 05:24:10,334 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-20 05:24:10,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-20 05:24:10,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-20 05:24:10,335 INFO L87 Difference]: Start difference. First operand 2163 states and 2647 transitions. Second operand has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:24:10,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:24:10,703 INFO L93 Difference]: Finished difference Result 4725 states and 5751 transitions. [2021-10-20 05:24:10,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-20 05:24:10,704 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 178 [2021-10-20 05:24:10,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:24:10,715 INFO L225 Difference]: With dead ends: 4725 [2021-10-20 05:24:10,716 INFO L226 Difference]: Without dead ends: 2083 [2021-10-20 05:24:10,719 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 358 GetRequests, 353 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 23.3ms TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-20 05:24:10,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2083 states. [2021-10-20 05:24:10,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2083 to 2083. [2021-10-20 05:24:10,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2083 states, 2082 states have (on average 1.1959654178674353) internal successors, (2490), 2082 states have internal predecessors, (2490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:24:10,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2083 states to 2083 states and 2490 transitions. [2021-10-20 05:24:10,781 INFO L78 Accepts]: Start accepts. Automaton has 2083 states and 2490 transitions. Word has length 178 [2021-10-20 05:24:10,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:24:10,781 INFO L470 AbstractCegarLoop]: Abstraction has 2083 states and 2490 transitions. [2021-10-20 05:24:10,782 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:24:10,782 INFO L276 IsEmpty]: Start isEmpty. Operand 2083 states and 2490 transitions. [2021-10-20 05:24:10,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2021-10-20 05:24:10,788 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:24:10,789 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:24:10,827 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c946a80-a534-41cc-9807-c3208d793acf/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-20 05:24:11,016 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c946a80-a534-41cc-9807-c3208d793acf/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-10-20 05:24:11,016 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:24:11,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:24:11,017 INFO L82 PathProgramCache]: Analyzing trace with hash 590730411, now seen corresponding path program 1 times [2021-10-20 05:24:11,017 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-20 05:24:11,017 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656411246] [2021-10-20 05:24:11,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:24:11,017 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-20 05:24:11,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:24:11,078 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 106 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2021-10-20 05:24:11,078 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-20 05:24:11,078 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656411246] [2021-10-20 05:24:11,079 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656411246] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-20 05:24:11,079 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:24:11,079 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-20 05:24:11,080 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387463605] [2021-10-20 05:24:11,080 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-20 05:24:11,080 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-20 05:24:11,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-20 05:24:11,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 05:24:11,082 INFO L87 Difference]: Start difference. First operand 2083 states and 2490 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 2 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:24:11,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:24:11,241 INFO L93 Difference]: Finished difference Result 3685 states and 4441 transitions. [2021-10-20 05:24:11,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-20 05:24:11,242 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 2 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 187 [2021-10-20 05:24:11,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:24:11,247 INFO L225 Difference]: With dead ends: 3685 [2021-10-20 05:24:11,247 INFO L226 Difference]: Without dead ends: 963 [2021-10-20 05:24:11,250 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 05:24:11,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 963 states. [2021-10-20 05:24:11,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 963 to 963. [2021-10-20 05:24:11,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 963 states, 962 states have (on average 1.0977130977130978) internal successors, (1056), 962 states have internal predecessors, (1056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:24:11,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 963 states to 963 states and 1056 transitions. [2021-10-20 05:24:11,274 INFO L78 Accepts]: Start accepts. Automaton has 963 states and 1056 transitions. Word has length 187 [2021-10-20 05:24:11,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:24:11,275 INFO L470 AbstractCegarLoop]: Abstraction has 963 states and 1056 transitions. [2021-10-20 05:24:11,275 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 2 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:24:11,275 INFO L276 IsEmpty]: Start isEmpty. Operand 963 states and 1056 transitions. [2021-10-20 05:24:11,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2021-10-20 05:24:11,279 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:24:11,279 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:24:11,279 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-20 05:24:11,280 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:24:11,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:24:11,280 INFO L82 PathProgramCache]: Analyzing trace with hash -1124111570, now seen corresponding path program 1 times [2021-10-20 05:24:11,281 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-20 05:24:11,281 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585997156] [2021-10-20 05:24:11,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:24:11,281 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-20 05:24:11,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:24:11,380 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 242 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:24:11,381 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-20 05:24:11,381 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585997156] [2021-10-20 05:24:11,381 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585997156] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-20 05:24:11,381 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:24:11,382 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-20 05:24:11,382 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693233583] [2021-10-20 05:24:11,383 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-20 05:24:11,383 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-20 05:24:11,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-20 05:24:11,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-20 05:24:11,384 INFO L87 Difference]: Start difference. First operand 963 states and 1056 transitions. Second operand has 4 states, 4 states have (on average 53.25) internal successors, (213), 4 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:24:11,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:24:11,612 INFO L93 Difference]: Finished difference Result 1845 states and 2029 transitions. [2021-10-20 05:24:11,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-20 05:24:11,612 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 53.25) internal successors, (213), 4 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 213 [2021-10-20 05:24:11,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:24:11,618 INFO L225 Difference]: With dead ends: 1845 [2021-10-20 05:24:11,618 INFO L226 Difference]: Without dead ends: 963 [2021-10-20 05:24:11,619 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.8ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-20 05:24:11,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 963 states. [2021-10-20 05:24:11,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 963 to 963. [2021-10-20 05:24:11,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 963 states, 962 states have (on average 1.0914760914760915) internal successors, (1050), 962 states have internal predecessors, (1050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:24:11,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 963 states to 963 states and 1050 transitions. [2021-10-20 05:24:11,643 INFO L78 Accepts]: Start accepts. Automaton has 963 states and 1050 transitions. Word has length 213 [2021-10-20 05:24:11,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:24:11,644 INFO L470 AbstractCegarLoop]: Abstraction has 963 states and 1050 transitions. [2021-10-20 05:24:11,644 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.25) internal successors, (213), 4 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:24:11,644 INFO L276 IsEmpty]: Start isEmpty. Operand 963 states and 1050 transitions. [2021-10-20 05:24:11,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2021-10-20 05:24:11,648 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:24:11,649 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:24:11,649 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-20 05:24:11,649 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:24:11,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:24:11,650 INFO L82 PathProgramCache]: Analyzing trace with hash 246788965, now seen corresponding path program 1 times [2021-10-20 05:24:11,650 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-20 05:24:11,650 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361112252] [2021-10-20 05:24:11,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:24:11,651 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-20 05:24:11,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:24:11,839 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 167 proven. 94 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2021-10-20 05:24:11,839 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-20 05:24:11,839 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361112252] [2021-10-20 05:24:11,839 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361112252] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-20 05:24:11,840 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1012802969] [2021-10-20 05:24:11,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:24:11,840 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-20 05:24:11,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c946a80-a534-41cc-9807-c3208d793acf/bin/utaipan-tZwUujhuQw/z3 [2021-10-20 05:24:11,841 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c946a80-a534-41cc-9807-c3208d793acf/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-20 05:24:11,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c946a80-a534-41cc-9807-c3208d793acf/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-20 05:24:12,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:24:12,082 INFO L263 TraceCheckSpWp]: Trace formula consists of 428 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-20 05:24:12,101 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:24:12,950 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 138 proven. 121 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2021-10-20 05:24:12,951 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:24:13,493 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 167 proven. 0 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2021-10-20 05:24:13,494 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1012802969] provided 1 perfect and 1 imperfect interpolant sequences [2021-10-20 05:24:13,494 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2021-10-20 05:24:13,494 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4, 4] total 8 [2021-10-20 05:24:13,497 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517922371] [2021-10-20 05:24:13,498 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-20 05:24:13,498 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-20 05:24:13,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-20 05:24:13,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-10-20 05:24:13,500 INFO L87 Difference]: Start difference. First operand 963 states and 1050 transitions. Second operand has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:24:13,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:24:13,714 INFO L93 Difference]: Finished difference Result 1363 states and 1487 transitions. [2021-10-20 05:24:13,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-20 05:24:13,715 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 248 [2021-10-20 05:24:13,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:24:13,716 INFO L225 Difference]: With dead ends: 1363 [2021-10-20 05:24:13,716 INFO L226 Difference]: Without dead ends: 0 [2021-10-20 05:24:13,717 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 499 GetRequests, 493 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 36.5ms TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-10-20 05:24:13,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-20 05:24:13,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-20 05:24:13,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:24:13,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-20 05:24:13,718 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 248 [2021-10-20 05:24:13,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:24:13,719 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-20 05:24:13,719 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:24:13,719 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-20 05:24:13,720 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-20 05:24:13,722 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-20 05:24:13,758 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c946a80-a534-41cc-9807-c3208d793acf/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-20 05:24:13,923 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c946a80-a534-41cc-9807-c3208d793acf/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-20 05:24:13,925 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-20 05:24:13,929 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:24:13,956 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:24:13,957 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:24:14,340 INFO L857 garLoopResultBuilder]: For program point L301(lines 301 423) no Hoare annotation was computed. [2021-10-20 05:24:14,341 INFO L857 garLoopResultBuilder]: For program point L235(lines 235 423) no Hoare annotation was computed. [2021-10-20 05:24:14,341 INFO L857 garLoopResultBuilder]: For program point L169(lines 169 423) no Hoare annotation was computed. [2021-10-20 05:24:14,341 INFO L857 garLoopResultBuilder]: For program point L303(lines 303 423) no Hoare annotation was computed. [2021-10-20 05:24:14,341 INFO L857 garLoopResultBuilder]: For program point L105(lines 105 423) no Hoare annotation was computed. [2021-10-20 05:24:14,341 INFO L857 garLoopResultBuilder]: For program point L40(lines 40 423) no Hoare annotation was computed. [2021-10-20 05:24:14,341 INFO L857 garLoopResultBuilder]: For program point L371(lines 371 423) no Hoare annotation was computed. [2021-10-20 05:24:14,341 INFO L857 garLoopResultBuilder]: For program point L307(lines 307 423) no Hoare annotation was computed. [2021-10-20 05:24:14,341 INFO L857 garLoopResultBuilder]: For program point L175(lines 175 423) no Hoare annotation was computed. [2021-10-20 05:24:14,342 INFO L857 garLoopResultBuilder]: For program point L109(lines 109 423) no Hoare annotation was computed. [2021-10-20 05:24:14,342 INFO L857 garLoopResultBuilder]: For program point L242(lines 242 423) no Hoare annotation was computed. [2021-10-20 05:24:14,342 INFO L857 garLoopResultBuilder]: For program point L45(lines 45 423) no Hoare annotation was computed. [2021-10-20 05:24:14,342 INFO L857 garLoopResultBuilder]: For program point L244(lines 244 423) no Hoare annotation was computed. [2021-10-20 05:24:14,342 INFO L857 garLoopResultBuilder]: For program point L179(lines 179 423) no Hoare annotation was computed. [2021-10-20 05:24:14,342 INFO L857 garLoopResultBuilder]: For program point L378(lines 378 423) no Hoare annotation was computed. [2021-10-20 05:24:14,342 INFO L857 garLoopResultBuilder]: For program point L48(lines 48 423) no Hoare annotation was computed. [2021-10-20 05:24:14,342 INFO L857 garLoopResultBuilder]: For program point L247(lines 247 423) no Hoare annotation was computed. [2021-10-20 05:24:14,343 INFO L857 garLoopResultBuilder]: For program point L116(lines 116 423) no Hoare annotation was computed. [2021-10-20 05:24:14,343 INFO L857 garLoopResultBuilder]: For program point L52(lines 52 423) no Hoare annotation was computed. [2021-10-20 05:24:14,343 INFO L857 garLoopResultBuilder]: For program point L185(lines 185 423) no Hoare annotation was computed. [2021-10-20 05:24:14,343 INFO L857 garLoopResultBuilder]: For program point L385(lines 385 423) no Hoare annotation was computed. [2021-10-20 05:24:14,343 INFO L857 garLoopResultBuilder]: For program point L319(lines 319 423) no Hoare annotation was computed. [2021-10-20 05:24:14,343 INFO L857 garLoopResultBuilder]: For program point L189(lines 189 423) no Hoare annotation was computed. [2021-10-20 05:24:14,343 INFO L857 garLoopResultBuilder]: For program point L123(lines 123 423) no Hoare annotation was computed. [2021-10-20 05:24:14,343 INFO L857 garLoopResultBuilder]: For program point L57(lines 57 423) no Hoare annotation was computed. [2021-10-20 05:24:14,343 INFO L857 garLoopResultBuilder]: For program point L388(lines 388 423) no Hoare annotation was computed. [2021-10-20 05:24:14,344 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-20 05:24:14,344 INFO L857 garLoopResultBuilder]: For program point L390(lines 390 423) no Hoare annotation was computed. [2021-10-20 05:24:14,344 INFO L857 garLoopResultBuilder]: For program point L324(lines 324 423) no Hoare annotation was computed. [2021-10-20 05:24:14,344 INFO L857 garLoopResultBuilder]: For program point L258(lines 258 423) no Hoare annotation was computed. [2021-10-20 05:24:14,344 INFO L857 garLoopResultBuilder]: For program point L60(lines 60 423) no Hoare annotation was computed. [2021-10-20 05:24:14,344 INFO L857 garLoopResultBuilder]: For program point L195(lines 195 423) no Hoare annotation was computed. [2021-10-20 05:24:14,344 INFO L857 garLoopResultBuilder]: For program point L129(lines 129 423) no Hoare annotation was computed. [2021-10-20 05:24:14,344 INFO L857 garLoopResultBuilder]: For program point L64(lines 64 423) no Hoare annotation was computed. [2021-10-20 05:24:14,345 INFO L857 garLoopResultBuilder]: For program point L263(lines 263 423) no Hoare annotation was computed. [2021-10-20 05:24:14,345 INFO L857 garLoopResultBuilder]: For program point L197(lines 197 423) no Hoare annotation was computed. [2021-10-20 05:24:14,345 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 497) no Hoare annotation was computed. [2021-10-20 05:24:14,345 INFO L857 garLoopResultBuilder]: For program point L199(lines 199 423) no Hoare annotation was computed. [2021-10-20 05:24:14,345 INFO L857 garLoopResultBuilder]: For program point L133(lines 133 423) no Hoare annotation was computed. [2021-10-20 05:24:14,345 INFO L857 garLoopResultBuilder]: For program point L399(lines 399 423) no Hoare annotation was computed. [2021-10-20 05:24:14,345 INFO L857 garLoopResultBuilder]: For program point L201(lines 201 423) no Hoare annotation was computed. [2021-10-20 05:24:14,345 INFO L857 garLoopResultBuilder]: For program point L69(lines 69 423) no Hoare annotation was computed. [2021-10-20 05:24:14,346 INFO L857 garLoopResultBuilder]: For program point L269(lines 269 423) no Hoare annotation was computed. [2021-10-20 05:24:14,346 INFO L857 garLoopResultBuilder]: For program point L204(lines 204 423) no Hoare annotation was computed. [2021-10-20 05:24:14,346 INFO L857 garLoopResultBuilder]: For program point L271(lines 271 423) no Hoare annotation was computed. [2021-10-20 05:24:14,346 INFO L857 garLoopResultBuilder]: For program point L404(lines 404 423) no Hoare annotation was computed. [2021-10-20 05:24:14,346 INFO L857 garLoopResultBuilder]: For program point L338(lines 338 423) no Hoare annotation was computed. [2021-10-20 05:24:14,346 INFO L857 garLoopResultBuilder]: For program point L140(lines 140 423) no Hoare annotation was computed. [2021-10-20 05:24:14,346 INFO L857 garLoopResultBuilder]: For program point L75(lines 75 423) no Hoare annotation was computed. [2021-10-20 05:24:14,346 INFO L857 garLoopResultBuilder]: For program point L208(lines 208 423) no Hoare annotation was computed. [2021-10-20 05:24:14,346 INFO L857 garLoopResultBuilder]: For program point L341(lines 341 423) no Hoare annotation was computed. [2021-10-20 05:24:14,347 INFO L857 garLoopResultBuilder]: For program point L408(lines 408 423) no Hoare annotation was computed. [2021-10-20 05:24:14,347 INFO L857 garLoopResultBuilder]: For program point L144(lines 144 423) no Hoare annotation was computed. [2021-10-20 05:24:14,347 INFO L853 garLoopResultBuilder]: At program point L607(lines 39 608) the Hoare annotation is: (let ((.cse0 (<= 9 ~a28~0)) (.cse5 (<= 10 ~a28~0)) (.cse4 (<= ~a28~0 10)) (.cse2 (= ~a11~0 1)) (.cse3 (<= ~a17~0 7)) (.cse8 (= ~a25~0 0)) (.cse1 (= ~a25~0 1)) (.cse9 (= ~a11~0 0)) (.cse6 (<= ~a17~0 8)) (.cse7 (= ~a19~0 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse6 .cse4 .cse7 .cse8) (and .cse0 .cse1 .cse9 .cse6 .cse4) (and .cse0 .cse1 .cse6 .cse7) (and .cse5 .cse2 .cse4 .cse8) (and (<= 11 ~a28~0) .cse2 .cse7 .cse8) (and .cse3 .cse9 .cse4 .cse8) (and .cse2 .cse6 .cse4 .cse8) (and .cse1 .cse2 .cse3 .cse7 (<= ~a28~0 7)) (and (< ~a28~0 10) .cse9 .cse6 .cse8) (and .cse1 .cse9 .cse6 .cse7))) [2021-10-20 05:24:14,347 INFO L857 garLoopResultBuilder]: For program point L79(lines 79 423) no Hoare annotation was computed. [2021-10-20 05:24:14,353 INFO L857 garLoopResultBuilder]: For program point L212(lines 212 423) no Hoare annotation was computed. [2021-10-20 05:24:14,353 INFO L860 garLoopResultBuilder]: At program point L610(lines 610 627) the Hoare annotation is: true [2021-10-20 05:24:14,353 INFO L857 garLoopResultBuilder]: For program point L412(lines 412 423) no Hoare annotation was computed. [2021-10-20 05:24:14,353 INFO L857 garLoopResultBuilder]: For program point L347(lines 347 423) no Hoare annotation was computed. [2021-10-20 05:24:14,353 INFO L857 garLoopResultBuilder]: For program point L149(lines 149 423) no Hoare annotation was computed. [2021-10-20 05:24:14,354 INFO L857 garLoopResultBuilder]: For program point L414(lines 414 423) no Hoare annotation was computed. [2021-10-20 05:24:14,354 INFO L857 garLoopResultBuilder]: For program point L84(lines 84 423) no Hoare annotation was computed. [2021-10-20 05:24:14,354 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-20 05:24:14,354 INFO L857 garLoopResultBuilder]: For program point L417(lines 417 423) no Hoare annotation was computed. [2021-10-20 05:24:14,354 INFO L857 garLoopResultBuilder]: For program point L153(lines 153 423) no Hoare annotation was computed. [2021-10-20 05:24:14,355 INFO L853 garLoopResultBuilder]: At program point L616-2(lines 616 626) the Hoare annotation is: (let ((.cse0 (<= 9 ~a28~0)) (.cse5 (<= 10 ~a28~0)) (.cse4 (<= ~a28~0 10)) (.cse2 (= ~a11~0 1)) (.cse3 (<= ~a17~0 7)) (.cse8 (= ~a25~0 0)) (.cse1 (= ~a25~0 1)) (.cse9 (= ~a11~0 0)) (.cse6 (<= ~a17~0 8)) (.cse7 (= ~a19~0 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse6 .cse4 .cse7 .cse8) (and .cse0 .cse1 .cse9 .cse6 .cse4) (and .cse0 .cse1 .cse6 .cse7) (and .cse5 .cse2 .cse4 .cse8) (and (<= 11 ~a28~0) .cse2 .cse7 .cse8) (and .cse3 .cse9 .cse4 .cse8) (and .cse2 .cse6 .cse4 .cse8) (and .cse1 .cse2 .cse3 .cse7 (<= ~a28~0 7)) (and (< ~a28~0 10) .cse9 .cse6 .cse8) (and .cse1 .cse9 .cse6 .cse7))) [2021-10-20 05:24:14,355 INFO L857 garLoopResultBuilder]: For program point L286(lines 286 423) no Hoare annotation was computed. [2021-10-20 05:24:14,355 INFO L857 garLoopResultBuilder]: For program point L419(lines 419 423) no Hoare annotation was computed. [2021-10-20 05:24:14,355 INFO L857 garLoopResultBuilder]: For program point L222(lines 222 423) no Hoare annotation was computed. [2021-10-20 05:24:14,356 INFO L857 garLoopResultBuilder]: For program point L290(lines 290 423) no Hoare annotation was computed. [2021-10-20 05:24:14,356 INFO L857 garLoopResultBuilder]: For program point L158(lines 158 423) no Hoare annotation was computed. [2021-10-20 05:24:14,356 INFO L857 garLoopResultBuilder]: For program point L92(lines 92 423) no Hoare annotation was computed. [2021-10-20 05:24:14,356 INFO L857 garLoopResultBuilder]: For program point L621(line 621) no Hoare annotation was computed. [2021-10-20 05:24:14,356 INFO L857 garLoopResultBuilder]: For program point L225(lines 225 423) no Hoare annotation was computed. [2021-10-20 05:24:14,356 INFO L857 garLoopResultBuilder]: For program point L359(lines 359 423) no Hoare annotation was computed. [2021-10-20 05:24:14,357 INFO L857 garLoopResultBuilder]: For program point L293(lines 293 423) no Hoare annotation was computed. [2021-10-20 05:24:14,357 INFO L857 garLoopResultBuilder]: For program point L228(lines 228 423) no Hoare annotation was computed. [2021-10-20 05:24:14,357 INFO L857 garLoopResultBuilder]: For program point L493-1(lines 39 608) no Hoare annotation was computed. [2021-10-20 05:24:14,357 INFO L857 garLoopResultBuilder]: For program point L296(lines 296 423) no Hoare annotation was computed. [2021-10-20 05:24:14,357 INFO L857 garLoopResultBuilder]: For program point L164(lines 164 423) no Hoare annotation was computed. [2021-10-20 05:24:14,357 INFO L857 garLoopResultBuilder]: For program point L496-1(lines 39 608) no Hoare annotation was computed. [2021-10-20 05:24:14,358 INFO L857 garLoopResultBuilder]: For program point L364(lines 364 423) no Hoare annotation was computed. [2021-10-20 05:24:14,358 INFO L857 garLoopResultBuilder]: For program point L497(line 497) no Hoare annotation was computed. [2021-10-20 05:24:14,358 INFO L857 garLoopResultBuilder]: For program point L233(lines 233 423) no Hoare annotation was computed. [2021-10-20 05:24:14,358 INFO L857 garLoopResultBuilder]: For program point L101(lines 101 423) no Hoare annotation was computed. [2021-10-20 05:24:14,363 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-20 05:24:14,399 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 05:24:14 BoogieIcfgContainer [2021-10-20 05:24:14,400 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-20 05:24:14,401 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-20 05:24:14,401 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-20 05:24:14,401 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-20 05:24:14,402 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:24:03" (3/4) ... [2021-10-20 05:24:14,404 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-20 05:24:14,433 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 114 nodes and edges [2021-10-20 05:24:14,435 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2021-10-20 05:24:14,437 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-10-20 05:24:14,438 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-20 05:24:14,575 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c946a80-a534-41cc-9807-c3208d793acf/bin/utaipan-tZwUujhuQw/witness.graphml [2021-10-20 05:24:14,576 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-20 05:24:14,577 INFO L168 Benchmark]: Toolchain (without parser) took 14317.29 ms. Allocated memory was 109.1 MB in the beginning and 205.5 MB in the end (delta: 96.5 MB). Free memory was 72.0 MB in the beginning and 66.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 100.7 MB. Max. memory is 16.1 GB. [2021-10-20 05:24:14,578 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 109.1 MB. Free memory was 82.8 MB in the beginning and 82.8 MB in the end (delta: 25.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-20 05:24:14,578 INFO L168 Benchmark]: CACSL2BoogieTranslator took 613.83 ms. Allocated memory is still 109.1 MB. Free memory was 71.7 MB in the beginning and 68.8 MB in the end (delta: 3.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-20 05:24:14,579 INFO L168 Benchmark]: Boogie Procedure Inliner took 100.69 ms. Allocated memory is still 109.1 MB. Free memory was 68.8 MB in the beginning and 63.4 MB in the end (delta: 5.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-20 05:24:14,579 INFO L168 Benchmark]: Boogie Preprocessor took 77.87 ms. Allocated memory is still 109.1 MB. Free memory was 62.9 MB in the beginning and 59.2 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-20 05:24:14,579 INFO L168 Benchmark]: RCFGBuilder took 1999.33 ms. Allocated memory was 109.1 MB in the beginning and 136.3 MB in the end (delta: 27.3 MB). Free memory was 58.7 MB in the beginning and 59.1 MB in the end (delta: -422.7 kB). Peak memory consumption was 36.1 MB. Max. memory is 16.1 GB. [2021-10-20 05:24:14,580 INFO L168 Benchmark]: TraceAbstraction took 11340.63 ms. Allocated memory was 136.3 MB in the beginning and 205.5 MB in the end (delta: 69.2 MB). Free memory was 59.1 MB in the beginning and 82.3 MB in the end (delta: -23.2 MB). Peak memory consumption was 45.8 MB. Max. memory is 16.1 GB. [2021-10-20 05:24:14,580 INFO L168 Benchmark]: Witness Printer took 175.12 ms. Allocated memory is still 205.5 MB. Free memory was 82.3 MB in the beginning and 66.6 MB in the end (delta: 15.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-20 05:24:14,583 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 109.1 MB. Free memory was 82.8 MB in the beginning and 82.8 MB in the end (delta: 25.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 613.83 ms. Allocated memory is still 109.1 MB. Free memory was 71.7 MB in the beginning and 68.8 MB in the end (delta: 3.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 100.69 ms. Allocated memory is still 109.1 MB. Free memory was 68.8 MB in the beginning and 63.4 MB in the end (delta: 5.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 77.87 ms. Allocated memory is still 109.1 MB. Free memory was 62.9 MB in the beginning and 59.2 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1999.33 ms. Allocated memory was 109.1 MB in the beginning and 136.3 MB in the end (delta: 27.3 MB). Free memory was 58.7 MB in the beginning and 59.1 MB in the end (delta: -422.7 kB). Peak memory consumption was 36.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 11340.63 ms. Allocated memory was 136.3 MB in the beginning and 205.5 MB in the end (delta: 69.2 MB). Free memory was 59.1 MB in the beginning and 82.3 MB in the end (delta: -23.2 MB). Peak memory consumption was 45.8 MB. Max. memory is 16.1 GB. * Witness Printer took 175.12 ms. Allocated memory is still 205.5 MB. Free memory was 82.3 MB in the beginning and 66.6 MB in the end (delta: 15.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 497]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 85 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 11225.1ms, OverallIterations: 14, TraceHistogramMax: 6, EmptinessCheckTime: 82.2ms, AutomataDifference: 4932.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 416.2ms, InitialAbstractionConstructionTime: 18.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1218 SDtfs, 790 SDslu, 78 SDs, 0 SdLazy, 3069 SolverSat, 731 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3296.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 889 GetRequests, 865 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 93.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=2163occurred in iteration=10, InterpolantAutomatonStates: 42, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 615.9ms AutomataMinimizationTime, 14 MinimizatonAttempts, 160 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 51 NumberOfFragments, 313 HoareAnnotationTreeSize, 3 FomulaSimplifications, 448 FormulaSimplificationTreeSizeReduction, 52.2ms HoareSimplificationTime, 3 FomulaSimplificationsInter, 210 FormulaSimplificationTreeSizeReductionInter, 356.9ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 157.3ms SsaConstructionTime, 529.0ms SatisfiabilityAnalysisTime, 3516.1ms InterpolantComputationTime, 2378 NumberOfCodeBlocks, 2378 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 2786 ConstructedInterpolants, 0 QuantifiedInterpolants, 8761 SizeOfPredicates, 1 NumberOfNonLiveVariables, 771 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 18 InterpolantComputations, 15 PerfectInterpolantSequences, 1905/2178 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 616]: Loop Invariant Derived loop invariant: (((((((((((((9 <= a28 && a25 == 1) && a11 == 1) && a17 <= 7) && a28 <= 10) || ((((10 <= a28 && a17 <= 8) && a28 <= 10) && a19 == 1) && a25 == 0)) || ((((9 <= a28 && a25 == 1) && a11 == 0) && a17 <= 8) && a28 <= 10)) || (((9 <= a28 && a25 == 1) && a17 <= 8) && a19 == 1)) || (((10 <= a28 && a11 == 1) && a28 <= 10) && a25 == 0)) || (((11 <= a28 && a11 == 1) && a19 == 1) && a25 == 0)) || (((a17 <= 7 && a11 == 0) && a28 <= 10) && a25 == 0)) || (((a11 == 1 && a17 <= 8) && a28 <= 10) && a25 == 0)) || ((((a25 == 1 && a11 == 1) && a17 <= 7) && a19 == 1) && a28 <= 7)) || (((a28 < 10 && a11 == 0) && a17 <= 8) && a25 == 0)) || (((a25 == 1 && a11 == 0) && a17 <= 8) && a19 == 1) - InvariantResult [Line: 610]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: (((((((((((((9 <= a28 && a25 == 1) && a11 == 1) && a17 <= 7) && a28 <= 10) || ((((10 <= a28 && a17 <= 8) && a28 <= 10) && a19 == 1) && a25 == 0)) || ((((9 <= a28 && a25 == 1) && a11 == 0) && a17 <= 8) && a28 <= 10)) || (((9 <= a28 && a25 == 1) && a17 <= 8) && a19 == 1)) || (((10 <= a28 && a11 == 1) && a28 <= 10) && a25 == 0)) || (((11 <= a28 && a11 == 1) && a19 == 1) && a25 == 0)) || (((a17 <= 7 && a11 == 0) && a28 <= 10) && a25 == 0)) || (((a11 == 1 && a17 <= 8) && a28 <= 10) && a25 == 0)) || ((((a25 == 1 && a11 == 1) && a17 <= 7) && a19 == 1) && a28 <= 7)) || (((a28 < 10 && a11 == 0) && a17 <= 8) && a25 == 0)) || (((a25 == 1 && a11 == 0) && a17 <= 8) && a19 == 1) RESULT: Ultimate proved your program to be correct! [2021-10-20 05:24:14,634 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c946a80-a534-41cc-9807-c3208d793acf/bin/utaipan-tZwUujhuQw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...