./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/forester-heap/sll-rb-sentinel-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8a7b349-21c5-4c52-9470-c835a2074cdb/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8a7b349-21c5-4c52-9470-c835a2074cdb/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8a7b349-21c5-4c52-9470-c835a2074cdb/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8a7b349-21c5-4c52-9470-c835a2074cdb/bin/utaipan-EQgc7hIp5V/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/forester-heap/sll-rb-sentinel-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8a7b349-21c5-4c52-9470-c835a2074cdb/bin/utaipan-EQgc7hIp5V/config/svcomp-MemCleanup-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8a7b349-21c5-4c52-9470-c835a2074cdb/bin/utaipan-EQgc7hIp5V --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 503a3e49b44041609ec1bba765b53912c88abb90ff278e61e68e863904faf4bb --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 02:20:22,977 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 02:20:22,979 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 02:20:23,035 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 02:20:23,036 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 02:20:23,042 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 02:20:23,044 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 02:20:23,047 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 02:20:23,049 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 02:20:23,050 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 02:20:23,052 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 02:20:23,053 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 02:20:23,054 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 02:20:23,055 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 02:20:23,057 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 02:20:23,059 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 02:20:23,060 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 02:20:23,062 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 02:20:23,064 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 02:20:23,067 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 02:20:23,070 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 02:20:23,071 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 02:20:23,073 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 02:20:23,075 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 02:20:23,079 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 02:20:23,080 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 02:20:23,080 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 02:20:23,082 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 02:20:23,082 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 02:20:23,084 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 02:20:23,084 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 02:20:23,086 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 02:20:23,087 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 02:20:23,088 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 02:20:23,089 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 02:20:23,089 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 02:20:23,090 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 02:20:23,091 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 02:20:23,091 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 02:20:23,092 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 02:20:23,093 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 02:20:23,094 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8a7b349-21c5-4c52-9470-c835a2074cdb/bin/utaipan-EQgc7hIp5V/config/svcomp-MemCleanup-32bit-Taipan_Default.epf [2021-11-23 02:20:23,125 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 02:20:23,125 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 02:20:23,126 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 02:20:23,126 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 02:20:23,127 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 02:20:23,127 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 02:20:23,128 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 02:20:23,128 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 02:20:23,128 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 02:20:23,128 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 02:20:23,128 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 02:20:23,129 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 02:20:23,129 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 02:20:23,129 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 02:20:23,129 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 02:20:23,130 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 02:20:23,130 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 02:20:23,130 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 02:20:23,131 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 02:20:23,132 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 02:20:23,132 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 02:20:23,132 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 02:20:23,132 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 02:20:23,133 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 02:20:23,133 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 02:20:23,133 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 02:20:23,133 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-23 02:20:23,134 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-23 02:20:23,134 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 02:20:23,134 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 02:20:23,135 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 02:20:23,135 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 02:20:23,135 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 02:20:23,135 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 02:20:23,136 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:20:23,136 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 02:20:23,136 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 02:20:23,137 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 02:20:23,137 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 02:20:23,137 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 02:20:23,137 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 02:20:23,138 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_c8a7b349-21c5-4c52-9470-c835a2074cdb/bin/utaipan-EQgc7hIp5V/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8a7b349-21c5-4c52-9470-c835a2074cdb/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 503a3e49b44041609ec1bba765b53912c88abb90ff278e61e68e863904faf4bb [2021-11-23 02:20:23,432 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 02:20:23,464 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 02:20:23,467 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 02:20:23,468 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 02:20:23,469 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 02:20:23,471 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8a7b349-21c5-4c52-9470-c835a2074cdb/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/forester-heap/sll-rb-sentinel-2.i [2021-11-23 02:20:23,553 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8a7b349-21c5-4c52-9470-c835a2074cdb/bin/utaipan-EQgc7hIp5V/data/77d17d12d/7d55f5a139184a8dade021620673a766/FLAGb5d43564c [2021-11-23 02:20:24,270 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 02:20:24,271 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8a7b349-21c5-4c52-9470-c835a2074cdb/sv-benchmarks/c/forester-heap/sll-rb-sentinel-2.i [2021-11-23 02:20:24,287 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8a7b349-21c5-4c52-9470-c835a2074cdb/bin/utaipan-EQgc7hIp5V/data/77d17d12d/7d55f5a139184a8dade021620673a766/FLAGb5d43564c [2021-11-23 02:20:24,537 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8a7b349-21c5-4c52-9470-c835a2074cdb/bin/utaipan-EQgc7hIp5V/data/77d17d12d/7d55f5a139184a8dade021620673a766 [2021-11-23 02:20:24,539 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 02:20:24,541 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 02:20:24,551 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 02:20:24,551 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 02:20:24,555 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 02:20:24,556 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:20:24" (1/1) ... [2021-11-23 02:20:24,563 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6dfc2952 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:20:24, skipping insertion in model container [2021-11-23 02:20:24,564 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:20:24" (1/1) ... [2021-11-23 02:20:24,573 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 02:20:24,629 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 02:20:24,999 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8a7b349-21c5-4c52-9470-c835a2074cdb/sv-benchmarks/c/forester-heap/sll-rb-sentinel-2.i[22534,22547] [2021-11-23 02:20:25,002 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8a7b349-21c5-4c52-9470-c835a2074cdb/sv-benchmarks/c/forester-heap/sll-rb-sentinel-2.i[22606,22619] [2021-11-23 02:20:25,004 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8a7b349-21c5-4c52-9470-c835a2074cdb/sv-benchmarks/c/forester-heap/sll-rb-sentinel-2.i[22746,22759] [2021-11-23 02:20:25,005 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8a7b349-21c5-4c52-9470-c835a2074cdb/sv-benchmarks/c/forester-heap/sll-rb-sentinel-2.i[22820,22833] [2021-11-23 02:20:25,012 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:20:25,020 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 02:20:25,072 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8a7b349-21c5-4c52-9470-c835a2074cdb/sv-benchmarks/c/forester-heap/sll-rb-sentinel-2.i[22534,22547] [2021-11-23 02:20:25,073 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8a7b349-21c5-4c52-9470-c835a2074cdb/sv-benchmarks/c/forester-heap/sll-rb-sentinel-2.i[22606,22619] [2021-11-23 02:20:25,075 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8a7b349-21c5-4c52-9470-c835a2074cdb/sv-benchmarks/c/forester-heap/sll-rb-sentinel-2.i[22746,22759] [2021-11-23 02:20:25,076 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8a7b349-21c5-4c52-9470-c835a2074cdb/sv-benchmarks/c/forester-heap/sll-rb-sentinel-2.i[22820,22833] [2021-11-23 02:20:25,080 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:20:25,113 INFO L208 MainTranslator]: Completed translation [2021-11-23 02:20:25,114 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:20:25 WrapperNode [2021-11-23 02:20:25,114 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 02:20:25,115 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 02:20:25,116 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 02:20:25,116 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 02:20:25,124 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:20:25" (1/1) ... [2021-11-23 02:20:25,140 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:20:25" (1/1) ... [2021-11-23 02:20:25,171 INFO L137 Inliner]: procedures = 119, calls = 36, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 134 [2021-11-23 02:20:25,171 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 02:20:25,172 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 02:20:25,172 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 02:20:25,176 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 02:20:25,187 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:20:25" (1/1) ... [2021-11-23 02:20:25,188 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:20:25" (1/1) ... [2021-11-23 02:20:25,194 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:20:25" (1/1) ... [2021-11-23 02:20:25,195 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:20:25" (1/1) ... [2021-11-23 02:20:25,211 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:20:25" (1/1) ... [2021-11-23 02:20:25,224 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:20:25" (1/1) ... [2021-11-23 02:20:25,226 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:20:25" (1/1) ... [2021-11-23 02:20:25,230 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 02:20:25,231 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 02:20:25,231 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 02:20:25,231 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 02:20:25,242 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:20:25" (1/1) ... [2021-11-23 02:20:25,251 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:20:25,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8a7b349-21c5-4c52-9470-c835a2074cdb/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:20:25,275 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8a7b349-21c5-4c52-9470-c835a2074cdb/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 02:20:25,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8a7b349-21c5-4c52-9470-c835a2074cdb/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 02:20:25,324 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 02:20:25,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 02:20:25,324 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 02:20:25,325 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 02:20:25,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 02:20:25,325 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 02:20:25,325 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 02:20:25,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 02:20:25,326 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 02:20:25,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 02:20:25,499 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 02:20:25,501 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 02:20:26,078 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 02:20:26,169 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 02:20:26,174 INFO L301 CfgBuilder]: Removed 11 assume(true) statements. [2021-11-23 02:20:26,177 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:20:26 BoogieIcfgContainer [2021-11-23 02:20:26,178 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 02:20:26,184 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 02:20:26,184 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 02:20:26,188 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 02:20:26,189 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:20:24" (1/3) ... [2021-11-23 02:20:26,190 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1734b808 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:20:26, skipping insertion in model container [2021-11-23 02:20:26,190 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:20:25" (2/3) ... [2021-11-23 02:20:26,191 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1734b808 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:20:26, skipping insertion in model container [2021-11-23 02:20:26,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:20:26" (3/3) ... [2021-11-23 02:20:26,195 INFO L111 eAbstractionObserver]: Analyzing ICFG sll-rb-sentinel-2.i [2021-11-23 02:20:26,202 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 02:20:26,231 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 61 error locations. [2021-11-23 02:20:26,323 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 02:20:26,341 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 02:20:26,342 INFO L340 AbstractCegarLoop]: Starting to check reachability of 61 error locations. [2021-11-23 02:20:26,371 INFO L276 IsEmpty]: Start isEmpty. Operand has 118 states, 56 states have (on average 2.4285714285714284) internal successors, (136), 117 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:20:26,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-11-23 02:20:26,382 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:20:26,383 INFO L514 BasicCegarLoop]: trace histogram [1, 1] [2021-11-23 02:20:26,384 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 57 more)] === [2021-11-23 02:20:26,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:20:26,391 INFO L85 PathProgramCache]: Analyzing trace with hash 8374, now seen corresponding path program 1 times [2021-11-23 02:20:26,404 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:20:26,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458315031] [2021-11-23 02:20:26,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:20:26,406 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:20:26,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:20:26,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:20:26,601 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:20:26,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458315031] [2021-11-23 02:20:26,603 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458315031] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:20:26,603 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:20:26,603 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-23 02:20:26,605 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997317164] [2021-11-23 02:20:26,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:20:26,612 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:20:26,612 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:20:26,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:20:26,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:20:26,650 INFO L87 Difference]: Start difference. First operand has 118 states, 56 states have (on average 2.4285714285714284) internal successors, (136), 117 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:20:26,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:20:26,815 INFO L93 Difference]: Finished difference Result 144 states and 151 transitions. [2021-11-23 02:20:26,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:20:26,818 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2021-11-23 02:20:26,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:20:26,830 INFO L225 Difference]: With dead ends: 144 [2021-11-23 02:20:26,830 INFO L226 Difference]: Without dead ends: 143 [2021-11-23 02:20:26,832 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:20:26,837 INFO L933 BasicCegarLoop]: 60 mSDtfsCounter, 102 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:20:26,838 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 80 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:20:26,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2021-11-23 02:20:26,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 119. [2021-11-23 02:20:26,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 60 states have (on average 2.1166666666666667) internal successors, (127), 118 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:20:26,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 127 transitions. [2021-11-23 02:20:26,887 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 127 transitions. Word has length 2 [2021-11-23 02:20:26,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:20:26,887 INFO L470 AbstractCegarLoop]: Abstraction has 119 states and 127 transitions. [2021-11-23 02:20:26,888 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:20:26,888 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 127 transitions. [2021-11-23 02:20:26,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-11-23 02:20:26,888 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:20:26,889 INFO L514 BasicCegarLoop]: trace histogram [1, 1] [2021-11-23 02:20:26,889 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 02:20:26,889 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 57 more)] === [2021-11-23 02:20:26,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:20:26,890 INFO L85 PathProgramCache]: Analyzing trace with hash 8375, now seen corresponding path program 1 times [2021-11-23 02:20:26,891 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:20:26,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525339994] [2021-11-23 02:20:26,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:20:26,892 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:20:26,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:20:26,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:20:26,940 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:20:26,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525339994] [2021-11-23 02:20:26,941 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525339994] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:20:26,941 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:20:26,941 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-23 02:20:26,942 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480733999] [2021-11-23 02:20:26,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:20:26,943 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:20:26,943 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:20:26,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:20:26,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:20:26,945 INFO L87 Difference]: Start difference. First operand 119 states and 127 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:20:27,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:20:27,042 INFO L93 Difference]: Finished difference Result 116 states and 123 transitions. [2021-11-23 02:20:27,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:20:27,043 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2021-11-23 02:20:27,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:20:27,045 INFO L225 Difference]: With dead ends: 116 [2021-11-23 02:20:27,045 INFO L226 Difference]: Without dead ends: 116 [2021-11-23 02:20:27,046 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:20:27,048 INFO L933 BasicCegarLoop]: 60 mSDtfsCounter, 113 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:20:27,048 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 60 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:20:27,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2021-11-23 02:20:27,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2021-11-23 02:20:27,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 60 states have (on average 2.05) internal successors, (123), 115 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:20:27,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 123 transitions. [2021-11-23 02:20:27,061 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 123 transitions. Word has length 2 [2021-11-23 02:20:27,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:20:27,061 INFO L470 AbstractCegarLoop]: Abstraction has 116 states and 123 transitions. [2021-11-23 02:20:27,062 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:20:27,062 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 123 transitions. [2021-11-23 02:20:27,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-23 02:20:27,062 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:20:27,063 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-23 02:20:27,063 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 02:20:27,063 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 57 more)] === [2021-11-23 02:20:27,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:20:27,064 INFO L85 PathProgramCache]: Analyzing trace with hash 8054028, now seen corresponding path program 1 times [2021-11-23 02:20:27,064 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:20:27,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345927100] [2021-11-23 02:20:27,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:20:27,065 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:20:27,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:20:27,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:20:27,116 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:20:27,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345927100] [2021-11-23 02:20:27,116 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345927100] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:20:27,126 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:20:27,127 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 02:20:27,127 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131575482] [2021-11-23 02:20:27,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:20:27,128 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:20:27,128 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:20:27,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:20:27,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:20:27,129 INFO L87 Difference]: Start difference. First operand 116 states and 123 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:20:27,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:20:27,244 INFO L93 Difference]: Finished difference Result 113 states and 119 transitions. [2021-11-23 02:20:27,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:20:27,245 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-11-23 02:20:27,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:20:27,246 INFO L225 Difference]: With dead ends: 113 [2021-11-23 02:20:27,247 INFO L226 Difference]: Without dead ends: 113 [2021-11-23 02:20:27,247 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:20:27,249 INFO L933 BasicCegarLoop]: 58 mSDtfsCounter, 91 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:20:27,249 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 66 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:20:27,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2021-11-23 02:20:27,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 111. [2021-11-23 02:20:27,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 61 states have (on average 1.9508196721311475) internal successors, (119), 110 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:20:27,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 119 transitions. [2021-11-23 02:20:27,260 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 119 transitions. Word has length 4 [2021-11-23 02:20:27,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:20:27,260 INFO L470 AbstractCegarLoop]: Abstraction has 111 states and 119 transitions. [2021-11-23 02:20:27,261 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:20:27,261 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 119 transitions. [2021-11-23 02:20:27,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-23 02:20:27,261 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:20:27,261 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-23 02:20:27,262 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 02:20:27,262 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 57 more)] === [2021-11-23 02:20:27,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:20:27,263 INFO L85 PathProgramCache]: Analyzing trace with hash 8054029, now seen corresponding path program 1 times [2021-11-23 02:20:27,263 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:20:27,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205569176] [2021-11-23 02:20:27,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:20:27,264 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:20:27,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:20:27,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:20:27,317 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:20:27,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205569176] [2021-11-23 02:20:27,317 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205569176] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:20:27,318 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:20:27,318 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 02:20:27,318 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582513741] [2021-11-23 02:20:27,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:20:27,319 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:20:27,319 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:20:27,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:20:27,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:20:27,320 INFO L87 Difference]: Start difference. First operand 111 states and 119 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:20:27,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:20:27,482 INFO L93 Difference]: Finished difference Result 126 states and 132 transitions. [2021-11-23 02:20:27,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:20:27,483 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-11-23 02:20:27,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:20:27,485 INFO L225 Difference]: With dead ends: 126 [2021-11-23 02:20:27,485 INFO L226 Difference]: Without dead ends: 126 [2021-11-23 02:20:27,485 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:20:27,487 INFO L933 BasicCegarLoop]: 59 mSDtfsCounter, 89 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 02:20:27,488 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [89 Valid, 74 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 02:20:27,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2021-11-23 02:20:27,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 114. [2021-11-23 02:20:27,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 66 states have (on average 1.8484848484848484) internal successors, (122), 113 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:20:27,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 122 transitions. [2021-11-23 02:20:27,525 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 122 transitions. Word has length 4 [2021-11-23 02:20:27,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:20:27,526 INFO L470 AbstractCegarLoop]: Abstraction has 114 states and 122 transitions. [2021-11-23 02:20:27,526 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:20:27,526 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 122 transitions. [2021-11-23 02:20:27,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-23 02:20:27,527 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:20:27,527 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:20:27,528 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 02:20:27,528 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 57 more)] === [2021-11-23 02:20:27,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:20:27,529 INFO L85 PathProgramCache]: Analyzing trace with hash -812908213, now seen corresponding path program 1 times [2021-11-23 02:20:27,529 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:20:27,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446351949] [2021-11-23 02:20:27,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:20:27,530 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:20:27,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:20:27,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:20:27,619 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:20:27,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446351949] [2021-11-23 02:20:27,620 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446351949] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:20:27,620 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:20:27,620 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:20:27,621 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764770716] [2021-11-23 02:20:27,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:20:27,621 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:20:27,621 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:20:27,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:20:27,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:20:27,623 INFO L87 Difference]: Start difference. First operand 114 states and 122 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:20:27,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:20:27,788 INFO L93 Difference]: Finished difference Result 116 states and 126 transitions. [2021-11-23 02:20:27,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 02:20:27,788 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-23 02:20:27,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:20:27,790 INFO L225 Difference]: With dead ends: 116 [2021-11-23 02:20:27,790 INFO L226 Difference]: Without dead ends: 116 [2021-11-23 02:20:27,791 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:20:27,801 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 132 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:20:27,804 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 59 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:20:27,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2021-11-23 02:20:27,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 105. [2021-11-23 02:20:27,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 68 states have (on average 1.6911764705882353) internal successors, (115), 104 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:20:27,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 115 transitions. [2021-11-23 02:20:27,816 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 115 transitions. Word has length 8 [2021-11-23 02:20:27,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:20:27,817 INFO L470 AbstractCegarLoop]: Abstraction has 105 states and 115 transitions. [2021-11-23 02:20:27,817 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:20:27,817 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 115 transitions. [2021-11-23 02:20:27,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-23 02:20:27,818 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:20:27,818 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:20:27,818 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 02:20:27,818 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 57 more)] === [2021-11-23 02:20:27,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:20:27,819 INFO L85 PathProgramCache]: Analyzing trace with hash -812908212, now seen corresponding path program 1 times [2021-11-23 02:20:27,819 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:20:27,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172327208] [2021-11-23 02:20:27,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:20:27,820 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:20:27,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:20:27,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:20:27,946 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:20:27,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172327208] [2021-11-23 02:20:27,947 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172327208] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:20:27,947 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:20:27,947 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 02:20:27,947 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546756484] [2021-11-23 02:20:27,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:20:27,948 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 02:20:27,948 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:20:27,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 02:20:27,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-23 02:20:27,953 INFO L87 Difference]: Start difference. First operand 105 states and 115 transitions. Second operand has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:20:28,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:20:28,255 INFO L93 Difference]: Finished difference Result 135 states and 145 transitions. [2021-11-23 02:20:28,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 02:20:28,255 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-23 02:20:28,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:20:28,256 INFO L225 Difference]: With dead ends: 135 [2021-11-23 02:20:28,256 INFO L226 Difference]: Without dead ends: 135 [2021-11-23 02:20:28,257 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-23 02:20:28,258 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 119 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-23 02:20:28,258 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [119 Valid, 104 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-23 02:20:28,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2021-11-23 02:20:28,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 111. [2021-11-23 02:20:28,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 75 states have (on average 1.6266666666666667) internal successors, (122), 110 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:20:28,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 122 transitions. [2021-11-23 02:20:28,266 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 122 transitions. Word has length 8 [2021-11-23 02:20:28,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:20:28,266 INFO L470 AbstractCegarLoop]: Abstraction has 111 states and 122 transitions. [2021-11-23 02:20:28,266 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:20:28,266 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 122 transitions. [2021-11-23 02:20:28,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-23 02:20:28,267 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:20:28,267 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:20:28,267 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-23 02:20:28,267 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 57 more)] === [2021-11-23 02:20:28,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:20:28,268 INFO L85 PathProgramCache]: Analyzing trace with hash 479237399, now seen corresponding path program 1 times [2021-11-23 02:20:28,268 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:20:28,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148917218] [2021-11-23 02:20:28,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:20:28,268 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:20:28,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:20:28,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:20:28,383 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:20:28,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148917218] [2021-11-23 02:20:28,383 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148917218] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:20:28,383 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:20:28,383 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 02:20:28,384 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152640915] [2021-11-23 02:20:28,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:20:28,384 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 02:20:28,384 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:20:28,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 02:20:28,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:20:28,385 INFO L87 Difference]: Start difference. First operand 111 states and 122 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:20:28,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:20:28,593 INFO L93 Difference]: Finished difference Result 144 states and 154 transitions. [2021-11-23 02:20:28,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 02:20:28,594 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-23 02:20:28,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:20:28,598 INFO L225 Difference]: With dead ends: 144 [2021-11-23 02:20:28,599 INFO L226 Difference]: Without dead ends: 144 [2021-11-23 02:20:28,599 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-23 02:20:28,604 INFO L933 BasicCegarLoop]: 47 mSDtfsCounter, 186 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 02:20:28,606 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [186 Valid, 105 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 02:20:28,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2021-11-23 02:20:28,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 112. [2021-11-23 02:20:28,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 77 states have (on average 1.5974025974025974) internal successors, (123), 111 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:20:28,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 123 transitions. [2021-11-23 02:20:28,619 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 123 transitions. Word has length 10 [2021-11-23 02:20:28,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:20:28,620 INFO L470 AbstractCegarLoop]: Abstraction has 112 states and 123 transitions. [2021-11-23 02:20:28,620 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:20:28,620 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 123 transitions. [2021-11-23 02:20:28,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-23 02:20:28,621 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:20:28,621 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:20:28,621 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-23 02:20:28,621 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr12REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 57 more)] === [2021-11-23 02:20:28,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:20:28,622 INFO L85 PathProgramCache]: Analyzing trace with hash 479463659, now seen corresponding path program 1 times [2021-11-23 02:20:28,623 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:20:28,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221191751] [2021-11-23 02:20:28,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:20:28,623 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:20:28,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:20:28,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:20:28,702 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:20:28,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221191751] [2021-11-23 02:20:28,703 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221191751] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:20:28,703 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:20:28,703 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:20:28,703 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070517447] [2021-11-23 02:20:28,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:20:28,704 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 02:20:28,704 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:20:28,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 02:20:28,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:20:28,705 INFO L87 Difference]: Start difference. First operand 112 states and 123 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:20:28,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:20:28,903 INFO L93 Difference]: Finished difference Result 111 states and 122 transitions. [2021-11-23 02:20:28,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 02:20:28,904 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-23 02:20:28,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:20:28,905 INFO L225 Difference]: With dead ends: 111 [2021-11-23 02:20:28,906 INFO L226 Difference]: Without dead ends: 111 [2021-11-23 02:20:28,906 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-23 02:20:28,907 INFO L933 BasicCegarLoop]: 60 mSDtfsCounter, 36 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 02:20:28,907 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 158 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 02:20:28,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2021-11-23 02:20:28,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2021-11-23 02:20:28,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 77 states have (on average 1.5844155844155845) internal successors, (122), 110 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:20:28,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 122 transitions. [2021-11-23 02:20:28,915 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 122 transitions. Word has length 10 [2021-11-23 02:20:28,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:20:28,915 INFO L470 AbstractCegarLoop]: Abstraction has 111 states and 122 transitions. [2021-11-23 02:20:28,916 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:20:28,916 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 122 transitions. [2021-11-23 02:20:28,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-23 02:20:28,916 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:20:28,917 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:20:28,917 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-23 02:20:28,917 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr13REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 57 more)] === [2021-11-23 02:20:28,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:20:28,918 INFO L85 PathProgramCache]: Analyzing trace with hash 479463660, now seen corresponding path program 1 times [2021-11-23 02:20:28,918 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:20:28,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707731786] [2021-11-23 02:20:28,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:20:28,918 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:20:28,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:20:29,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:20:29,056 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:20:29,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707731786] [2021-11-23 02:20:29,056 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707731786] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:20:29,056 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:20:29,056 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:20:29,057 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90709752] [2021-11-23 02:20:29,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:20:29,057 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 02:20:29,057 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:20:29,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 02:20:29,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:20:29,058 INFO L87 Difference]: Start difference. First operand 111 states and 122 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:20:29,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:20:29,259 INFO L93 Difference]: Finished difference Result 111 states and 123 transitions. [2021-11-23 02:20:29,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 02:20:29,260 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-23 02:20:29,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:20:29,261 INFO L225 Difference]: With dead ends: 111 [2021-11-23 02:20:29,261 INFO L226 Difference]: Without dead ends: 111 [2021-11-23 02:20:29,261 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-23 02:20:29,262 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 9 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 02:20:29,263 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 199 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 02:20:29,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2021-11-23 02:20:29,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 106. [2021-11-23 02:20:29,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 77 states have (on average 1.5194805194805194) internal successors, (117), 105 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:20:29,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 117 transitions. [2021-11-23 02:20:29,268 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 117 transitions. Word has length 10 [2021-11-23 02:20:29,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:20:29,268 INFO L470 AbstractCegarLoop]: Abstraction has 106 states and 117 transitions. [2021-11-23 02:20:29,268 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:20:29,269 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 117 transitions. [2021-11-23 02:20:29,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-23 02:20:29,269 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:20:29,269 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:20:29,270 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-23 02:20:29,270 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 57 more)] === [2021-11-23 02:20:29,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:20:29,270 INFO L85 PathProgramCache]: Analyzing trace with hash 494053857, now seen corresponding path program 1 times [2021-11-23 02:20:29,271 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:20:29,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554006587] [2021-11-23 02:20:29,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:20:29,271 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:20:29,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:20:29,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:20:29,492 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:20:29,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554006587] [2021-11-23 02:20:29,493 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554006587] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:20:29,493 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:20:29,493 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-23 02:20:29,493 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862033864] [2021-11-23 02:20:29,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:20:29,494 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 02:20:29,494 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:20:29,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 02:20:29,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-11-23 02:20:29,495 INFO L87 Difference]: Start difference. First operand 106 states and 117 transitions. Second operand has 8 states, 8 states have (on average 1.625) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:20:29,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:20:29,774 INFO L93 Difference]: Finished difference Result 158 states and 174 transitions. [2021-11-23 02:20:29,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-23 02:20:29,774 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.625) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-11-23 02:20:29,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:20:29,776 INFO L225 Difference]: With dead ends: 158 [2021-11-23 02:20:29,776 INFO L226 Difference]: Without dead ends: 158 [2021-11-23 02:20:29,776 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2021-11-23 02:20:29,777 INFO L933 BasicCegarLoop]: 48 mSDtfsCounter, 207 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 02:20:29,778 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [207 Valid, 170 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 02:20:29,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2021-11-23 02:20:29,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 113. [2021-11-23 02:20:29,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 84 states have (on average 1.4880952380952381) internal successors, (125), 112 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:20:29,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 125 transitions. [2021-11-23 02:20:29,783 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 125 transitions. Word has length 13 [2021-11-23 02:20:29,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:20:29,783 INFO L470 AbstractCegarLoop]: Abstraction has 113 states and 125 transitions. [2021-11-23 02:20:29,783 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.625) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:20:29,783 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 125 transitions. [2021-11-23 02:20:29,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-23 02:20:29,784 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:20:29,784 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:20:29,785 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-23 02:20:29,785 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr22REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 57 more)] === [2021-11-23 02:20:29,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:20:29,785 INFO L85 PathProgramCache]: Analyzing trace with hash 947851196, now seen corresponding path program 1 times [2021-11-23 02:20:29,786 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:20:29,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071364157] [2021-11-23 02:20:29,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:20:29,786 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:20:29,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:20:29,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:20:29,836 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:20:29,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071364157] [2021-11-23 02:20:29,837 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071364157] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:20:29,837 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:20:29,837 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:20:29,838 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620441649] [2021-11-23 02:20:29,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:20:29,838 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 02:20:29,838 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:20:29,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 02:20:29,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:20:29,840 INFO L87 Difference]: Start difference. First operand 113 states and 125 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:20:29,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:20:29,984 INFO L93 Difference]: Finished difference Result 112 states and 124 transitions. [2021-11-23 02:20:29,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 02:20:29,985 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-11-23 02:20:29,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:20:29,986 INFO L225 Difference]: With dead ends: 112 [2021-11-23 02:20:29,986 INFO L226 Difference]: Without dead ends: 112 [2021-11-23 02:20:29,986 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-23 02:20:29,987 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 30 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:20:29,987 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 154 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:20:29,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2021-11-23 02:20:29,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2021-11-23 02:20:29,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 84 states have (on average 1.4761904761904763) internal successors, (124), 111 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:20:29,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 124 transitions. [2021-11-23 02:20:29,990 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 124 transitions. Word has length 15 [2021-11-23 02:20:29,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:20:29,991 INFO L470 AbstractCegarLoop]: Abstraction has 112 states and 124 transitions. [2021-11-23 02:20:29,991 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:20:29,991 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 124 transitions. [2021-11-23 02:20:29,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-23 02:20:29,992 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:20:29,992 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:20:29,992 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-23 02:20:29,992 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr23REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 57 more)] === [2021-11-23 02:20:29,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:20:29,993 INFO L85 PathProgramCache]: Analyzing trace with hash 947851197, now seen corresponding path program 1 times [2021-11-23 02:20:29,993 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:20:29,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239879148] [2021-11-23 02:20:29,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:20:29,994 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:20:30,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:20:30,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:20:30,097 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:20:30,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239879148] [2021-11-23 02:20:30,098 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239879148] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:20:30,098 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:20:30,098 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:20:30,098 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456919250] [2021-11-23 02:20:30,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:20:30,099 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 02:20:30,099 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:20:30,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 02:20:30,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:20:30,100 INFO L87 Difference]: Start difference. First operand 112 states and 124 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:20:30,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:20:30,232 INFO L93 Difference]: Finished difference Result 109 states and 121 transitions. [2021-11-23 02:20:30,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 02:20:30,232 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-11-23 02:20:30,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:20:30,233 INFO L225 Difference]: With dead ends: 109 [2021-11-23 02:20:30,233 INFO L226 Difference]: Without dead ends: 109 [2021-11-23 02:20:30,233 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:20:30,234 INFO L933 BasicCegarLoop]: 69 mSDtfsCounter, 5 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:20:30,234 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 196 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:20:30,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2021-11-23 02:20:30,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 104. [2021-11-23 02:20:30,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 80 states have (on average 1.4375) internal successors, (115), 103 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:20:30,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 115 transitions. [2021-11-23 02:20:30,239 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 115 transitions. Word has length 15 [2021-11-23 02:20:30,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:20:30,239 INFO L470 AbstractCegarLoop]: Abstraction has 104 states and 115 transitions. [2021-11-23 02:20:30,239 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:20:30,239 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 115 transitions. [2021-11-23 02:20:30,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-23 02:20:30,240 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:20:30,240 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:20:30,240 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-23 02:20:30,241 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr30REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 57 more)] === [2021-11-23 02:20:30,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:20:30,241 INFO L85 PathProgramCache]: Analyzing trace with hash 405330386, now seen corresponding path program 1 times [2021-11-23 02:20:30,241 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:20:30,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162966412] [2021-11-23 02:20:30,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:20:30,242 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:20:30,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:20:30,353 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:20:30,353 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:20:30,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162966412] [2021-11-23 02:20:30,353 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162966412] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:20:30,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1129741320] [2021-11-23 02:20:30,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:20:30,354 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:20:30,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8a7b349-21c5-4c52-9470-c835a2074cdb/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:20:30,356 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8a7b349-21c5-4c52-9470-c835a2074cdb/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:20:30,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8a7b349-21c5-4c52-9470-c835a2074cdb/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 02:20:30,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:20:30,439 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-23 02:20:30,445 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:20:30,521 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 02:20:30,528 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 02:20:30,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:30,592 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-23 02:20:30,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:30,601 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-23 02:20:30,806 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2021-11-23 02:20:30,810 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2021-11-23 02:20:30,817 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:20:30,818 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:20:30,947 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:20:30,947 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1129741320] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 02:20:30,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1991737322] [2021-11-23 02:20:30,967 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2021-11-23 02:20:30,967 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 02:20:30,971 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 02:20:30,977 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 02:20:30,977 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 02:20:31,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:31,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:31,034 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-23 02:20:31,059 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-23 02:20:31,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:31,071 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-11-23 02:20:31,079 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-23 02:20:31,108 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 02:20:31,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:31,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:31,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:31,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:31,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:31,122 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2021-11-23 02:20:31,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:31,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:31,149 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 33 [2021-11-23 02:20:31,160 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 02:20:31,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:31,200 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2021-11-23 02:20:31,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:31,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:31,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:31,220 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 33 [2021-11-23 02:20:31,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:31,238 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2021-11-23 02:20:31,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:31,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:31,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:31,293 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2021-11-23 02:20:31,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:31,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:31,332 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2021-11-23 02:20:31,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:31,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:31,348 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2021-11-23 02:20:31,708 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 02:20:33,208 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3149#(and (= |ULTIMATE.start_main_~null~0#1.offset| 0) (not (= (select |#valid| |ULTIMATE.start_main_~end~0#1.base|) 1)) (or (not (= |ULTIMATE.start_main_~null~0#1.offset| |ULTIMATE.start_main_~end~0#1.offset|)) (not (= |ULTIMATE.start_main_~null~0#1.base| |ULTIMATE.start_main_~end~0#1.base|))) (= |ULTIMATE.start_main_~list~0#1.offset| 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2021-11-23 02:20:33,209 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-23 02:20:33,209 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 02:20:33,209 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 5] total 8 [2021-11-23 02:20:33,209 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861305479] [2021-11-23 02:20:33,209 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 02:20:33,210 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 02:20:33,210 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:20:33,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 02:20:33,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2021-11-23 02:20:33,211 INFO L87 Difference]: Start difference. First operand 104 states and 115 transitions. Second operand has 8 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:20:33,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:20:33,567 INFO L93 Difference]: Finished difference Result 156 states and 171 transitions. [2021-11-23 02:20:33,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-23 02:20:33,567 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-11-23 02:20:33,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:20:33,569 INFO L225 Difference]: With dead ends: 156 [2021-11-23 02:20:33,569 INFO L226 Difference]: Without dead ends: 156 [2021-11-23 02:20:33,569 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 39 SyntacticMatches, 5 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=113, Invalid=393, Unknown=0, NotChecked=0, Total=506 [2021-11-23 02:20:33,570 INFO L933 BasicCegarLoop]: 37 mSDtfsCounter, 124 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-23 02:20:33,571 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 193 Invalid, 371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-23 02:20:33,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2021-11-23 02:20:33,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 112. [2021-11-23 02:20:33,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 88 states have (on average 1.4090909090909092) internal successors, (124), 111 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:20:33,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 124 transitions. [2021-11-23 02:20:33,576 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 124 transitions. Word has length 19 [2021-11-23 02:20:33,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:20:33,576 INFO L470 AbstractCegarLoop]: Abstraction has 112 states and 124 transitions. [2021-11-23 02:20:33,577 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:20:33,577 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 124 transitions. [2021-11-23 02:20:33,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-23 02:20:33,578 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:20:33,578 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:20:33,611 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8a7b349-21c5-4c52-9470-c835a2074cdb/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-23 02:20:33,802 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8a7b349-21c5-4c52-9470-c835a2074cdb/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-11-23 02:20:33,802 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 57 more)] === [2021-11-23 02:20:33,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:20:33,803 INFO L85 PathProgramCache]: Analyzing trace with hash 404025859, now seen corresponding path program 1 times [2021-11-23 02:20:33,803 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:20:33,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868255035] [2021-11-23 02:20:33,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:20:33,803 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:20:33,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:20:33,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:20:33,924 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:20:33,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868255035] [2021-11-23 02:20:33,925 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868255035] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:20:33,925 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:20:33,925 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 02:20:33,925 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471778794] [2021-11-23 02:20:33,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:20:33,927 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 02:20:33,927 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:20:33,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 02:20:33,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:20:33,928 INFO L87 Difference]: Start difference. First operand 112 states and 124 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:20:34,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:20:34,074 INFO L93 Difference]: Finished difference Result 109 states and 119 transitions. [2021-11-23 02:20:34,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 02:20:34,075 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-11-23 02:20:34,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:20:34,076 INFO L225 Difference]: With dead ends: 109 [2021-11-23 02:20:34,076 INFO L226 Difference]: Without dead ends: 109 [2021-11-23 02:20:34,076 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-23 02:20:34,077 INFO L933 BasicCegarLoop]: 63 mSDtfsCounter, 4 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:20:34,078 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 196 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:20:34,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2021-11-23 02:20:34,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2021-11-23 02:20:34,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 85 states have (on average 1.4) internal successors, (119), 108 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:20:34,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 119 transitions. [2021-11-23 02:20:34,082 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 119 transitions. Word has length 19 [2021-11-23 02:20:34,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:20:34,082 INFO L470 AbstractCegarLoop]: Abstraction has 109 states and 119 transitions. [2021-11-23 02:20:34,082 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:20:34,083 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 119 transitions. [2021-11-23 02:20:34,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-23 02:20:34,083 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:20:34,084 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:20:34,084 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-23 02:20:34,084 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 57 more)] === [2021-11-23 02:20:34,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:20:34,084 INFO L85 PathProgramCache]: Analyzing trace with hash -360214418, now seen corresponding path program 1 times [2021-11-23 02:20:34,085 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:20:34,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140243840] [2021-11-23 02:20:34,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:20:34,085 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:20:34,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:20:34,484 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:20:34,485 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:20:34,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140243840] [2021-11-23 02:20:34,485 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140243840] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:20:34,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1474285182] [2021-11-23 02:20:34,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:20:34,485 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:20:34,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8a7b349-21c5-4c52-9470-c835a2074cdb/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:20:34,486 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8a7b349-21c5-4c52-9470-c835a2074cdb/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:20:34,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8a7b349-21c5-4c52-9470-c835a2074cdb/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-23 02:20:34,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:20:34,568 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-23 02:20:34,571 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:20:34,581 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-23 02:20:34,618 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-23 02:20:34,682 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-23 02:20:34,682 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-11-23 02:20:34,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:34,747 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-11-23 02:20:34,758 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-23 02:20:34,807 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2021-11-23 02:20:34,850 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-11-23 02:20:34,893 INFO L354 Elim1Store]: treesize reduction 35, result has 20.5 percent of original size [2021-11-23 02:20:34,894 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 26 [2021-11-23 02:20:35,114 INFO L354 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2021-11-23 02:20:35,115 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 14 [2021-11-23 02:20:35,119 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:20:35,119 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:20:35,811 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~end~0#1.offset| Int) (v_DerPreprocessor_3 Int)) (= ~unnamed1~0~BLACK (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~end~0#1.base| (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset| v_DerPreprocessor_3) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|) ~unnamed1~0~BLACK)) |c_ULTIMATE.start_main_~list~0#1.base|) (+ |c_ULTIMATE.start_main_~list~0#1.offset| 4)))) is different from false [2021-11-23 02:20:36,516 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~end~0#1.offset_96| Int) (v_DerPreprocessor_3 Int)) (= ~unnamed1~0~BLACK (select (select (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|))) (store |c_#memory_int| .cse0 (store (store (select |c_#memory_int| .cse0) |v_ULTIMATE.start_main_~end~0#1.offset_96| v_DerPreprocessor_3) (+ 4 |v_ULTIMATE.start_main_~end~0#1.offset_96|) ~unnamed1~0~BLACK))) |c_ULTIMATE.start_main_~list~0#1.base|) (+ |c_ULTIMATE.start_main_~list~0#1.offset| 4)))) is different from false [2021-11-23 02:20:41,536 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:20:41,536 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1474285182] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 02:20:41,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1626658357] [2021-11-23 02:20:41,539 INFO L159 IcfgInterpreter]: Started Sifa with 19 locations of interest [2021-11-23 02:20:41,539 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 02:20:41,540 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 02:20:41,540 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 02:20:41,540 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 02:20:41,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:41,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:41,566 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-23 02:20:41,585 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-23 02:20:41,594 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-23 02:20:41,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:41,604 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-11-23 02:20:41,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:41,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:41,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:41,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:41,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:41,633 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2021-11-23 02:20:41,643 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 02:20:41,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:41,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:41,653 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 33 [2021-11-23 02:20:41,664 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 02:20:41,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:41,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:41,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:41,692 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 33 [2021-11-23 02:20:41,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:41,705 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2021-11-23 02:20:41,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:41,717 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2021-11-23 02:20:41,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:41,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:41,753 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2021-11-23 02:20:41,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:41,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:41,771 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2021-11-23 02:20:41,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:41,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:41,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:41,788 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2021-11-23 02:20:41,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:41,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:41,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:41,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:41,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:41,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:41,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:41,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:41,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:41,858 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 48 [2021-11-23 02:20:41,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:41,898 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 21 [2021-11-23 02:20:41,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:41,913 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 56 [2021-11-23 02:20:41,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:41,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:41,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:41,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:41,936 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 45 [2021-11-23 02:20:41,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:42,023 INFO L354 Elim1Store]: treesize reduction 48, result has 23.8 percent of original size [2021-11-23 02:20:42,023 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 33 treesize of output 31 [2021-11-23 02:20:42,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:42,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:42,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:42,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:42,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:42,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:42,053 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 45 [2021-11-23 02:20:42,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:42,074 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:20:42,100 INFO L354 Elim1Store]: treesize reduction 32, result has 31.9 percent of original size [2021-11-23 02:20:42,100 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 81 treesize of output 63 [2021-11-23 02:20:42,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:42,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:42,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:42,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:42,188 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 34 [2021-11-23 02:20:42,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:42,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:42,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:42,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:42,205 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2021-11-23 02:20:42,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:42,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:42,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:42,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:42,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:42,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:42,231 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 54 [2021-11-23 02:20:42,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:42,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:42,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:42,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:42,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:42,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:42,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:42,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:42,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:42,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:42,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:42,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:42,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:42,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:42,322 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 19 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 61 [2021-11-23 02:20:42,466 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:20:42,548 INFO L354 Elim1Store]: treesize reduction 68, result has 28.4 percent of original size [2021-11-23 02:20:42,549 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 504 treesize of output 506 [2021-11-23 02:20:42,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:42,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:42,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:42,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:42,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:42,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:42,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:42,597 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:20:42,695 INFO L354 Elim1Store]: treesize reduction 164, result has 16.8 percent of original size [2021-11-23 02:20:42,696 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 13 case distinctions, treesize of input 540 treesize of output 520 [2021-11-23 02:20:42,727 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:20:42,782 INFO L354 Elim1Store]: treesize reduction 77, result has 18.9 percent of original size [2021-11-23 02:20:42,783 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 525 treesize of output 514 [2021-11-23 02:20:43,321 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:20:43,450 INFO L354 Elim1Store]: treesize reduction 196, result has 15.9 percent of original size [2021-11-23 02:20:43,450 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 852 treesize of output 679 [2021-11-23 02:20:43,476 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:20:43,599 INFO L354 Elim1Store]: treesize reduction 172, result has 19.2 percent of original size [2021-11-23 02:20:43,600 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 807 treesize of output 726 [2021-11-23 02:20:43,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:43,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:43,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:43,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:43,634 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:20:43,807 INFO L354 Elim1Store]: treesize reduction 422, result has 11.2 percent of original size [2021-11-23 02:20:43,808 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 20 case distinctions, treesize of input 802 treesize of output 775 [2021-11-23 02:20:44,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:44,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:44,248 INFO L354 Elim1Store]: treesize reduction 176, result has 11.6 percent of original size [2021-11-23 02:20:44,249 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 658 treesize of output 562 [2021-11-23 02:20:44,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:44,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:44,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:44,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:44,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:44,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:44,287 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:20:44,360 INFO L354 Elim1Store]: treesize reduction 218, result has 16.8 percent of original size [2021-11-23 02:20:44,361 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 12 case distinctions, treesize of input 639 treesize of output 638 [2021-11-23 02:20:44,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:44,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:44,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:44,388 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:20:44,425 INFO L354 Elim1Store]: treesize reduction 127, result has 8.0 percent of original size [2021-11-23 02:20:44,426 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 646 treesize of output 598 [2021-11-23 02:20:44,818 INFO L354 Elim1Store]: treesize reduction 228, result has 13.3 percent of original size [2021-11-23 02:20:44,819 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 20 case distinctions, treesize of input 630 treesize of output 619 [2021-11-23 02:20:45,006 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 02:20:45,011 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-23 02:20:45,017 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 02:20:45,055 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-23 02:20:45,080 INFO L354 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2021-11-23 02:20:45,080 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 59 treesize of output 66 [2021-11-23 02:20:45,098 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-11-23 02:20:45,099 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 63 treesize of output 58 [2021-11-23 02:20:45,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:45,238 INFO L354 Elim1Store]: treesize reduction 37, result has 31.5 percent of original size [2021-11-23 02:20:45,238 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 90 treesize of output 87 [2021-11-23 02:20:45,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:45,266 INFO L354 Elim1Store]: treesize reduction 37, result has 31.5 percent of original size [2021-11-23 02:20:45,267 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 84 treesize of output 81 [2021-11-23 02:20:45,403 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-23 02:20:45,435 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-23 02:20:45,435 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-11-23 02:20:45,444 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2021-11-23 02:20:45,456 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-23 02:20:45,460 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 02:20:45,465 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 02:20:45,501 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-11-23 02:20:45,501 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 59 treesize of output 54 [2021-11-23 02:20:45,521 INFO L354 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2021-11-23 02:20:45,522 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 58 [2021-11-23 02:20:45,574 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-23 02:20:45,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:45,669 INFO L354 Elim1Store]: treesize reduction 37, result has 31.5 percent of original size [2021-11-23 02:20:45,670 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 90 treesize of output 87 [2021-11-23 02:20:45,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:45,697 INFO L354 Elim1Store]: treesize reduction 37, result has 31.5 percent of original size [2021-11-23 02:20:45,698 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 84 treesize of output 81 [2021-11-23 02:20:45,850 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-23 02:20:45,945 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 02:20:47,584 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3803#(and (<= (+ 8 |ULTIMATE.start_main_~end~0#1.offset|) (select |#length| |ULTIMATE.start_main_~end~0#1.base|)) (not (= |ULTIMATE.start_main_~null~0#1.base| |ULTIMATE.start_main_~end~0#1.base|)) (= |ULTIMATE.start_main_~null~0#1.offset| 0) (= (select |#valid| |ULTIMATE.start_main_~end~0#1.base|) 1) (= |ULTIMATE.start_main_~end~0#1.base| |ULTIMATE.start_main_~list~0#1.base|) (= |ULTIMATE.start_main_~list~0#1.offset| |ULTIMATE.start_main_~end~0#1.offset|) (= |ULTIMATE.start_main_~list~0#1.offset| 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (not (= ~unnamed1~0~BLACK (select (select |#memory_int| |ULTIMATE.start_main_~end~0#1.base|) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|)))) (= |#NULL.base| 0))' at error location [2021-11-23 02:20:47,584 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-23 02:20:47,584 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 02:20:47,584 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10, 11] total 28 [2021-11-23 02:20:47,585 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439426204] [2021-11-23 02:20:47,585 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 02:20:47,585 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-11-23 02:20:47,585 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:20:47,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-11-23 02:20:47,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=227, Invalid=1498, Unknown=5, NotChecked=162, Total=1892 [2021-11-23 02:20:47,587 INFO L87 Difference]: Start difference. First operand 109 states and 119 transitions. Second operand has 28 states, 28 states have (on average 1.8571428571428572) internal successors, (52), 28 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:20:53,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:20:53,044 INFO L93 Difference]: Finished difference Result 214 states and 232 transitions. [2021-11-23 02:20:53,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-11-23 02:20:53,045 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 1.8571428571428572) internal successors, (52), 28 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-11-23 02:20:53,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:20:53,046 INFO L225 Difference]: With dead ends: 214 [2021-11-23 02:20:53,046 INFO L226 Difference]: Without dead ends: 214 [2021-11-23 02:20:53,048 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 30 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 893 ImplicationChecksByTransitivity, 13.0s TimeCoverageRelationStatistics Valid=443, Invalid=2526, Unknown=9, NotChecked=214, Total=3192 [2021-11-23 02:20:53,049 INFO L933 BasicCegarLoop]: 47 mSDtfsCounter, 254 mSDsluCounter, 454 mSDsCounter, 0 mSdLazyCounter, 619 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 492 SdHoareTripleChecker+Invalid, 1146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 452 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-23 02:20:53,050 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [254 Valid, 492 Invalid, 1146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 619 Invalid, 0 Unknown, 452 Unchecked, 0.5s Time] [2021-11-23 02:20:53,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2021-11-23 02:20:53,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 121. [2021-11-23 02:20:53,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 97 states have (on average 1.3711340206185567) internal successors, (133), 120 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:20:53,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 133 transitions. [2021-11-23 02:20:53,055 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 133 transitions. Word has length 20 [2021-11-23 02:20:53,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:20:53,056 INFO L470 AbstractCegarLoop]: Abstraction has 121 states and 133 transitions. [2021-11-23 02:20:53,056 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 1.8571428571428572) internal successors, (52), 28 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:20:53,056 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 133 transitions. [2021-11-23 02:20:53,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-23 02:20:53,057 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:20:53,058 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:20:53,100 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8a7b349-21c5-4c52-9470-c835a2074cdb/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-23 02:20:53,274 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8a7b349-21c5-4c52-9470-c835a2074cdb/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:20:53,274 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr55ASSERT_VIOLATIONMEMORY_FREE === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 57 more)] === [2021-11-23 02:20:53,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:20:53,275 INFO L85 PathProgramCache]: Analyzing trace with hash -1695487611, now seen corresponding path program 1 times [2021-11-23 02:20:53,275 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:20:53,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100180517] [2021-11-23 02:20:53,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:20:53,275 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:20:53,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:20:53,337 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 02:20:53,338 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:20:53,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100180517] [2021-11-23 02:20:53,338 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100180517] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:20:53,338 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:20:53,338 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 02:20:53,339 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456486384] [2021-11-23 02:20:53,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:20:53,339 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:20:53,339 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:20:53,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:20:53,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:20:53,340 INFO L87 Difference]: Start difference. First operand 121 states and 133 transitions. Second operand has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:20:53,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:20:53,417 INFO L93 Difference]: Finished difference Result 122 states and 133 transitions. [2021-11-23 02:20:53,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:20:53,418 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-11-23 02:20:53,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:20:53,419 INFO L225 Difference]: With dead ends: 122 [2021-11-23 02:20:53,419 INFO L226 Difference]: Without dead ends: 122 [2021-11-23 02:20:53,419 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:20:53,420 INFO L933 BasicCegarLoop]: 59 mSDtfsCounter, 39 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:20:53,421 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 73 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:20:53,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2021-11-23 02:20:53,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2021-11-23 02:20:53,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 98 states have (on average 1.3571428571428572) internal successors, (133), 121 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:20:53,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 133 transitions. [2021-11-23 02:20:53,430 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 133 transitions. Word has length 24 [2021-11-23 02:20:53,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:20:53,430 INFO L470 AbstractCegarLoop]: Abstraction has 122 states and 133 transitions. [2021-11-23 02:20:53,431 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:20:53,431 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 133 transitions. [2021-11-23 02:20:53,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-23 02:20:53,437 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:20:53,437 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:20:53,437 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-23 02:20:53,438 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 57 more)] === [2021-11-23 02:20:53,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:20:53,439 INFO L85 PathProgramCache]: Analyzing trace with hash -2088284808, now seen corresponding path program 1 times [2021-11-23 02:20:53,439 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:20:53,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981968817] [2021-11-23 02:20:53,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:20:53,440 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:20:53,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:20:53,950 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:20:53,951 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:20:53,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981968817] [2021-11-23 02:20:53,951 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981968817] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 02:20:53,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [121922364] [2021-11-23 02:20:53,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:20:53,952 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 02:20:53,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8a7b349-21c5-4c52-9470-c835a2074cdb/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:20:53,956 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8a7b349-21c5-4c52-9470-c835a2074cdb/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 02:20:53,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8a7b349-21c5-4c52-9470-c835a2074cdb/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-23 02:20:54,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:20:54,031 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 30 conjunts are in the unsatisfiable core [2021-11-23 02:20:54,033 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:20:54,039 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-23 02:20:54,067 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-23 02:20:54,136 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-23 02:20:54,137 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-11-23 02:20:54,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:20:54,195 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-11-23 02:20:54,203 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-23 02:20:54,247 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2021-11-23 02:20:54,293 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-11-23 02:20:54,317 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-23 02:20:54,332 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-23 02:20:54,333 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-11-23 02:20:54,380 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-11-23 02:20:54,380 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 25 [2021-11-23 02:20:54,391 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-23 02:20:54,445 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2021-11-23 02:20:54,531 INFO L354 Elim1Store]: treesize reduction 41, result has 31.7 percent of original size [2021-11-23 02:20:54,531 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 38 treesize of output 39 [2021-11-23 02:20:54,607 INFO L354 Elim1Store]: treesize reduction 35, result has 20.5 percent of original size [2021-11-23 02:20:54,607 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 26 [2021-11-23 02:20:54,776 INFO L354 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2021-11-23 02:20:54,777 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 14 [2021-11-23 02:20:54,784 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:20:54,784 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:20:55,441 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~end~0#1.offset| Int) (v_DerPreprocessor_5 Int)) (= ~unnamed1~0~BLACK (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~end~0#1.base| (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~end~0#1.base|) |ULTIMATE.start_main_~end~0#1.offset| v_DerPreprocessor_5) (+ 4 |ULTIMATE.start_main_~end~0#1.offset|) ~unnamed1~0~BLACK)) |c_ULTIMATE.start_main_~list~0#1.base|) (+ |c_ULTIMATE.start_main_~list~0#1.offset| 4)))) is different from false [2021-11-23 02:20:56,154 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~end~0#1.offset_108| Int) (v_DerPreprocessor_5 Int)) (= (select (select (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|))) (store |c_#memory_int| .cse0 (store (store (select |c_#memory_int| .cse0) |v_ULTIMATE.start_main_~end~0#1.offset_108| v_DerPreprocessor_5) (+ 4 |v_ULTIMATE.start_main_~end~0#1.offset_108|) ~unnamed1~0~BLACK))) |c_ULTIMATE.start_main_~list~0#1.base|) (+ |c_ULTIMATE.start_main_~list~0#1.offset| 4)) ~unnamed1~0~BLACK)) is different from false [2021-11-23 02:20:56,936 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~end~0#1.offset_108| Int) (v_DerPreprocessor_6 Int) (v_DerPreprocessor_5 Int)) (= ~unnamed1~0~BLACK (select (select (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~end~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset| v_DerPreprocessor_6)))) (store .cse0 |c_ULTIMATE.start_main_#t~malloc7#1.base| (store (store (select .cse0 |c_ULTIMATE.start_main_#t~malloc7#1.base|) |v_ULTIMATE.start_main_~end~0#1.offset_108| v_DerPreprocessor_5) (+ 4 |v_ULTIMATE.start_main_~end~0#1.offset_108|) ~unnamed1~0~BLACK))) |c_ULTIMATE.start_main_~list~0#1.base|) (+ |c_ULTIMATE.start_main_~list~0#1.offset| 4)))) is different from false [2021-11-23 02:21:05,237 INFO L354 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2021-11-23 02:21:05,238 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 99 treesize of output 98 [2021-11-23 02:21:07,263 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~end~0#1.offset_108| Int) (v_DerPreprocessor_8 Int) (v_DerPreprocessor_7 Int) (v_DerPreprocessor_6 Int) (|v_ULTIMATE.start_main_#t~malloc7#1.base_15| Int) (v_DerPreprocessor_5 Int) (|v_ULTIMATE.start_main_~end~0#1.offset_110| Int)) (or (= ~unnamed1~0~BLACK (select (select (let ((.cse0 (let ((.cse1 (store |c_#memory_int| |c_ULTIMATE.start_main_~end~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset| v_DerPreprocessor_8)))) (store .cse1 |c_ULTIMATE.start_main_#t~malloc4#1.base| (store (store (store (select .cse1 |c_ULTIMATE.start_main_#t~malloc4#1.base|) |v_ULTIMATE.start_main_~end~0#1.offset_110| v_DerPreprocessor_7) (+ 4 |v_ULTIMATE.start_main_~end~0#1.offset_110|) ~unnamed1~0~RED) |v_ULTIMATE.start_main_~end~0#1.offset_110| v_DerPreprocessor_6))))) (store .cse0 |v_ULTIMATE.start_main_#t~malloc7#1.base_15| (store (store (select .cse0 |v_ULTIMATE.start_main_#t~malloc7#1.base_15|) |v_ULTIMATE.start_main_~end~0#1.offset_108| v_DerPreprocessor_5) (+ 4 |v_ULTIMATE.start_main_~end~0#1.offset_108|) ~unnamed1~0~BLACK))) |c_ULTIMATE.start_main_~list~0#1.base|) (+ |c_ULTIMATE.start_main_~list~0#1.offset| 4))) (= |v_ULTIMATE.start_main_#t~malloc7#1.base_15| |c_ULTIMATE.start_main_~end~0#1.base|))) is different from false [2021-11-23 02:21:24,980 WARN L227 SmtUtils]: Spent 9.43s on a formula simplification. DAG size of input: 548 DAG size of output: 529 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 02:21:25,000 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-11-23 02:21:25,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [47973354] [2021-11-23 02:21:25,003 INFO L159 IcfgInterpreter]: Started Sifa with 23 locations of interest [2021-11-23 02:21:25,003 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 02:21:25,004 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 02:21:25,004 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 02:21:25,004 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 02:21:25,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:25,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:25,037 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-23 02:21:25,059 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-23 02:21:25,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:25,069 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-11-23 02:21:25,079 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-23 02:21:25,101 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 02:21:25,112 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-23 02:21:25,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:25,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:25,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:25,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:25,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:25,128 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2021-11-23 02:21:25,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:25,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:25,145 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 33 [2021-11-23 02:21:25,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:25,170 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2021-11-23 02:21:25,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:25,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:25,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:25,186 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 33 [2021-11-23 02:21:25,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:25,201 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2021-11-23 02:21:25,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:25,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:25,234 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2021-11-23 02:21:25,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:25,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:25,247 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2021-11-23 02:21:25,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:25,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:25,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:25,264 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2021-11-23 02:21:25,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:25,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:25,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:25,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:25,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:25,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:25,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:25,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:25,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:25,327 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 48 [2021-11-23 02:21:25,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:25,378 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 56 [2021-11-23 02:21:25,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:25,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:25,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:25,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:25,400 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 45 [2021-11-23 02:21:25,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:25,418 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 21 [2021-11-23 02:21:25,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:25,495 INFO L354 Elim1Store]: treesize reduction 48, result has 23.8 percent of original size [2021-11-23 02:21:25,495 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 81 treesize of output 63 [2021-11-23 02:21:25,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:25,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:25,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:25,518 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 31 [2021-11-23 02:21:25,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:25,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:25,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:25,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:25,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:25,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:25,550 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 45 [2021-11-23 02:21:25,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:25,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:25,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:25,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:25,603 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2021-11-23 02:21:25,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:25,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:25,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:25,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:25,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:25,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:25,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:25,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:25,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:25,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:25,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:25,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:25,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:25,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:25,643 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 19 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 56 [2021-11-23 02:21:25,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:25,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:25,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:25,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:25,665 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2021-11-23 02:21:25,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:25,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:25,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:25,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:25,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:25,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:25,684 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 54 [2021-11-23 02:21:25,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:25,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:25,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:25,729 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 31 [2021-11-23 02:21:25,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:25,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:25,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:25,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:25,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:25,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:25,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:25,751 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 57 [2021-11-23 02:21:25,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:25,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:25,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:25,772 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 72 [2021-11-23 02:21:25,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:25,888 INFO L354 Elim1Store]: treesize reduction 88, result has 20.0 percent of original size [2021-11-23 02:21:25,888 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 290 treesize of output 214 [2021-11-23 02:21:25,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:25,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:25,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:25,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:25,916 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:21:25,917 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:21:25,969 INFO L354 Elim1Store]: treesize reduction 132, result has 18.5 percent of original size [2021-11-23 02:21:25,970 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 286 treesize of output 286 [2021-11-23 02:21:25,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:26,035 INFO L354 Elim1Store]: treesize reduction 108, result has 19.4 percent of original size [2021-11-23 02:21:26,035 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 271 treesize of output 268 [2021-11-23 02:21:26,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:26,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:26,097 INFO L354 Elim1Store]: treesize reduction 40, result has 2.4 percent of original size [2021-11-23 02:21:26,097 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 307 treesize of output 223 [2021-11-23 02:21:26,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:26,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:26,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:26,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:26,121 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:21:26,122 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:21:26,123 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:21:26,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:26,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:26,175 INFO L354 Elim1Store]: treesize reduction 88, result has 25.4 percent of original size [2021-11-23 02:21:26,175 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 248 treesize of output 259 [2021-11-23 02:21:26,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:26,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:26,202 INFO L354 Elim1Store]: treesize reduction 52, result has 1.9 percent of original size [2021-11-23 02:21:26,202 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 244 treesize of output 237 [2021-11-23 02:21:26,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:26,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:26,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:26,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:26,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:26,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:26,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:26,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:26,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:26,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:26,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:26,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:26,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:26,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:26,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:26,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:26,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:26,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:26,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:26,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:26,324 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 26 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 63 [2021-11-23 02:21:26,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:26,455 INFO L354 Elim1Store]: treesize reduction 88, result has 20.0 percent of original size [2021-11-23 02:21:26,456 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 302 treesize of output 258 [2021-11-23 02:21:26,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:26,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:26,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:26,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:26,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:26,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:26,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:26,488 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:21:26,488 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:21:26,489 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:21:26,496 INFO L354 Elim1Store]: treesize reduction 52, result has 1.9 percent of original size [2021-11-23 02:21:26,497 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 7 case distinctions, treesize of input 304 treesize of output 307 [2021-11-23 02:21:26,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:26,569 INFO L354 Elim1Store]: treesize reduction 112, result has 18.8 percent of original size [2021-11-23 02:21:26,570 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 289 treesize of output 290 [2021-11-23 02:21:26,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:26,734 INFO L354 Elim1Store]: treesize reduction 136, result has 17.6 percent of original size [2021-11-23 02:21:26,736 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 469 treesize of output 287 [2021-11-23 02:21:26,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:26,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:26,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:26,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:26,769 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:21:26,770 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:21:26,894 INFO L354 Elim1Store]: treesize reduction 236, result has 16.0 percent of original size [2021-11-23 02:21:26,895 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 9 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 13 case distinctions, treesize of input 405 treesize of output 408 [2021-11-23 02:21:26,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:27,008 INFO L354 Elim1Store]: treesize reduction 208, result has 16.5 percent of original size [2021-11-23 02:21:27,009 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 390 treesize of output 386 [2021-11-23 02:21:27,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:27,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:27,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:27,126 INFO L354 Elim1Store]: treesize reduction 88, result has 1.1 percent of original size [2021-11-23 02:21:27,127 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 9 case distinctions, treesize of input 525 treesize of output 367 [2021-11-23 02:21:27,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:27,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:27,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:27,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:27,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:27,405 INFO L354 Elim1Store]: treesize reduction 326, result has 12.8 percent of original size [2021-11-23 02:21:27,405 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 22 case distinctions, treesize of input 506 treesize of output 524 [2021-11-23 02:21:27,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:27,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:27,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:27,447 INFO L354 Elim1Store]: treesize reduction 136, result has 0.7 percent of original size [2021-11-23 02:21:27,448 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 501 treesize of output 485 [2021-11-23 02:21:27,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:27,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:27,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:27,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:27,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:27,482 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:21:27,483 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:21:27,585 INFO L354 Elim1Store]: treesize reduction 236, result has 16.0 percent of original size [2021-11-23 02:21:27,585 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 13 case distinctions, treesize of input 467 treesize of output 481 [2021-11-23 02:21:27,733 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:21:27,734 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:21:27,735 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:21:28,008 INFO L354 Elim1Store]: treesize reduction 132, result has 23.7 percent of original size [2021-11-23 02:21:28,009 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 14 case distinctions, treesize of input 834 treesize of output 692 [2021-11-23 02:21:28,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:28,034 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:21:28,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:28,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:28,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:28,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:28,042 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:21:28,043 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:21:28,044 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:21:28,095 INFO L354 Elim1Store]: treesize reduction 117, result has 5.6 percent of original size [2021-11-23 02:21:28,096 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 782 treesize of output 762 [2021-11-23 02:21:28,122 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:21:28,123 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:21:28,123 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:21:28,307 INFO L354 Elim1Store]: treesize reduction 172, result has 16.1 percent of original size [2021-11-23 02:21:28,308 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 767 treesize of output 759 [2021-11-23 02:21:29,136 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:21:29,137 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:21:29,408 INFO L354 Elim1Store]: treesize reduction 184, result has 22.0 percent of original size [2021-11-23 02:21:29,409 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 8 new quantified variables, introduced 15 case distinctions, treesize of input 1492 treesize of output 940 [2021-11-23 02:21:29,439 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:21:29,440 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:21:29,666 INFO L354 Elim1Store]: treesize reduction 252, result has 24.1 percent of original size [2021-11-23 02:21:29,667 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 1302 treesize of output 1293 [2021-11-23 02:21:29,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:29,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:29,705 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:21:29,706 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:21:29,916 INFO L354 Elim1Store]: treesize reduction 372, result has 15.1 percent of original size [2021-11-23 02:21:29,917 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 27 case distinctions, treesize of input 1332 treesize of output 1282 [2021-11-23 02:21:32,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:32,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:32,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:32,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:32,396 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:21:32,397 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:21:32,426 INFO L354 Elim1Store]: treesize reduction 140, result has 0.7 percent of original size [2021-11-23 02:21:32,427 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 15 case distinctions, treesize of input 3821 treesize of output 2678 [2021-11-23 02:21:32,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:32,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:32,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:32,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:32,528 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:21:32,529 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:21:32,545 INFO L354 Elim1Store]: treesize reduction 200, result has 0.5 percent of original size [2021-11-23 02:21:32,546 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 3802 treesize of output 3605 [2021-11-23 02:21:32,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:32,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:32,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:32,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:32,628 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:21:32,630 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:21:32,885 INFO L354 Elim1Store]: treesize reduction 284, result has 22.8 percent of original size [2021-11-23 02:21:32,886 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 5 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 25 case distinctions, treesize of input 3783 treesize of output 3576 [2021-11-23 02:21:37,290 INFO L354 Elim1Store]: treesize reduction 444, result has 11.4 percent of original size [2021-11-23 02:21:37,291 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 2 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 35 case distinctions, treesize of input 3822 treesize of output 3647 [2021-11-23 02:21:41,984 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:21:41,985 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:21:42,271 INFO L354 Elim1Store]: treesize reduction 236, result has 20.3 percent of original size [2021-11-23 02:21:42,272 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 20 case distinctions, treesize of input 4591 treesize of output 3176 [2021-11-23 02:21:42,340 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:21:42,340 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:21:42,607 INFO L354 Elim1Store]: treesize reduction 356, result has 11.9 percent of original size [2021-11-23 02:21:42,608 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 20 case distinctions, treesize of input 4707 treesize of output 4518 [2021-11-23 02:21:42,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:42,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:42,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:42,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:42,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:21:42,671 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:21:42,672 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:21:42,878 INFO L354 Elim1Store]: treesize reduction 458, result has 12.6 percent of original size [2021-11-23 02:21:42,879 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 6 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 34 case distinctions, treesize of input 4696 treesize of output 4461 [2021-11-23 02:22:06,003 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:22:06,004 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:22:07,245 INFO L354 Elim1Store]: treesize reduction 606, result has 13.2 percent of original size [2021-11-23 02:22:07,246 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 15 new quantified variables, introduced 55 case distinctions, treesize of input 11578 treesize of output 6300 [2021-11-23 02:22:07,295 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:22:07,295 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:22:07,869 INFO L354 Elim1Store]: treesize reduction 340, result has 16.3 percent of original size [2021-11-23 02:22:07,870 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 6300 treesize of output 5728 [2021-11-23 02:22:07,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:22:07,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 02:22:07,937 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:22:07,938 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 02:22:08,691 INFO L354 Elim1Store]: treesize reduction 508, result has 11.2 percent of original size [2021-11-23 02:22:08,692 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 3 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 44 case distinctions, treesize of input 5728 treesize of output 5224