./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ntdrivers-simplified/floppy_simpl3.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5e0467-1964-495b-a087-d989d522ec30/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5e0467-1964-495b-a087-d989d522ec30/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5e0467-1964-495b-a087-d989d522ec30/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5e0467-1964-495b-a087-d989d522ec30/bin/utaipan-WLngWcDbfI/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ntdrivers-simplified/floppy_simpl3.cil-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5e0467-1964-495b-a087-d989d522ec30/bin/utaipan-WLngWcDbfI/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5e0467-1964-495b-a087-d989d522ec30/bin/utaipan-WLngWcDbfI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9caca1067e52a4490439beb955df6129aef4eea8 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:32:15,340 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:32:15,342 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:32:15,389 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:32:15,389 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:32:15,396 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:32:15,398 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:32:15,403 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:32:15,405 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:32:15,414 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:32:15,415 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:32:15,417 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:32:15,418 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:32:15,421 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:32:15,423 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:32:15,425 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:32:15,427 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:32:15,432 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:32:15,434 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:32:15,444 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:32:15,446 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:32:15,448 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:32:15,452 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:32:15,453 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:32:15,457 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:32:15,457 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:32:15,458 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:32:15,460 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:32:15,461 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:32:15,462 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:32:15,463 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:32:15,464 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:32:15,466 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:32:15,467 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:32:15,468 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:32:15,469 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:32:15,470 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:32:15,471 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:32:15,471 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:32:15,472 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:32:15,473 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:32:15,476 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5e0467-1964-495b-a087-d989d522ec30/bin/utaipan-WLngWcDbfI/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-10-11 02:32:15,519 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:32:15,519 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:32:15,521 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:32:15,521 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:32:15,521 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:32:15,528 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:32:15,528 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:32:15,529 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:32:15,529 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:32:15,529 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:32:15,530 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:32:15,530 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:32:15,531 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:32:15,531 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:32:15,531 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:32:15,532 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 02:32:15,532 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 02:32:15,532 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:32:15,532 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:32:15,533 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-11 02:32:15,533 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:32:15,533 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:32:15,533 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:32:15,533 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-11 02:32:15,534 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-11 02:32:15,534 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-11 02:32:15,536 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:32:15,536 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:32:15,536 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:32:15,536 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:32:15,537 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:32:15,537 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:32:15,537 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:32:15,538 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:32:15,538 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:32:15,538 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:32:15,538 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:32:15,538 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:32:15,538 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:32:15,539 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_8d5e0467-1964-495b-a087-d989d522ec30/bin/utaipan-WLngWcDbfI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5e0467-1964-495b-a087-d989d522ec30/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9caca1067e52a4490439beb955df6129aef4eea8 [2021-10-11 02:32:15,809 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:32:15,836 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:32:15,840 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:32:15,842 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:32:15,843 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:32:15,844 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5e0467-1964-495b-a087-d989d522ec30/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/ntdrivers-simplified/floppy_simpl3.cil-2.c [2021-10-11 02:32:15,932 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5e0467-1964-495b-a087-d989d522ec30/bin/utaipan-WLngWcDbfI/data/1bf3e6286/932831b6f3a74e4dab954196601432fc/FLAGe3b0b4bfe [2021-10-11 02:32:16,458 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:32:16,459 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5e0467-1964-495b-a087-d989d522ec30/sv-benchmarks/c/ntdrivers-simplified/floppy_simpl3.cil-2.c [2021-10-11 02:32:16,485 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5e0467-1964-495b-a087-d989d522ec30/bin/utaipan-WLngWcDbfI/data/1bf3e6286/932831b6f3a74e4dab954196601432fc/FLAGe3b0b4bfe [2021-10-11 02:32:16,786 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5e0467-1964-495b-a087-d989d522ec30/bin/utaipan-WLngWcDbfI/data/1bf3e6286/932831b6f3a74e4dab954196601432fc [2021-10-11 02:32:16,788 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:32:16,790 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:32:16,795 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:32:16,795 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:32:16,799 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:32:16,799 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:32:16" (1/1) ... [2021-10-11 02:32:16,802 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9425107 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:16, skipping insertion in model container [2021-10-11 02:32:16,802 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:32:16" (1/1) ... [2021-10-11 02:32:16,809 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:32:16,861 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:32:17,077 WARN L226 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_8d5e0467-1964-495b-a087-d989d522ec30/sv-benchmarks/c/ntdrivers-simplified/floppy_simpl3.cil-2.c[2713,2726] [2021-10-11 02:32:17,218 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:32:17,228 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:32:17,249 WARN L226 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_8d5e0467-1964-495b-a087-d989d522ec30/sv-benchmarks/c/ntdrivers-simplified/floppy_simpl3.cil-2.c[2713,2726] [2021-10-11 02:32:17,331 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:32:17,369 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:32:17,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:17 WrapperNode [2021-10-11 02:32:17,370 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:32:17,371 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:32:17,371 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:32:17,371 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:32:17,379 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:17" (1/1) ... [2021-10-11 02:32:17,396 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:17" (1/1) ... [2021-10-11 02:32:17,525 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:32:17,525 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:32:17,526 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:32:17,526 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:32:17,532 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:17" (1/1) ... [2021-10-11 02:32:17,533 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:17" (1/1) ... [2021-10-11 02:32:17,541 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:17" (1/1) ... [2021-10-11 02:32:17,541 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:17" (1/1) ... [2021-10-11 02:32:17,581 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:17" (1/1) ... [2021-10-11 02:32:17,609 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:17" (1/1) ... [2021-10-11 02:32:17,616 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:17" (1/1) ... [2021-10-11 02:32:17,627 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:32:17,628 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:32:17,628 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:32:17,629 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:32:17,630 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:17" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5e0467-1964-495b-a087-d989d522ec30/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:32:17,719 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:32:17,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 02:32:17,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:32:17,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:32:18,043 WARN L800 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-11 02:32:18,062 WARN L800 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-11 02:32:18,071 WARN L800 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-11 02:32:18,080 WARN L800 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-11 02:32:18,086 WARN L800 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-11 02:32:18,089 WARN L800 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-11 02:32:18,098 WARN L800 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-11 02:32:18,101 WARN L800 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-11 02:32:18,106 WARN L800 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-11 02:32:18,107 WARN L800 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-11 02:32:18,112 WARN L800 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-11 02:32:18,120 WARN L800 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-11 02:32:18,120 WARN L800 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-11 02:32:18,124 WARN L800 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-11 02:32:18,125 WARN L800 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-11 02:32:18,132 WARN L800 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-11 02:32:18,135 WARN L800 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-11 02:32:18,141 WARN L800 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-11 02:32:18,143 WARN L800 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-11 02:32:18,146 WARN L800 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-11 02:32:18,149 WARN L800 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-11 02:32:18,150 WARN L800 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-11 02:32:18,152 WARN L800 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-11 02:32:18,153 WARN L800 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-10-11 02:32:19,347 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##416: assume !false; [2021-10-11 02:32:19,348 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##415: assume false; [2021-10-11 02:32:19,348 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##445: assume false; [2021-10-11 02:32:19,348 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##290: assume false; [2021-10-11 02:32:19,348 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##291: assume !false; [2021-10-11 02:32:19,349 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##490: assume !false; [2021-10-11 02:32:19,349 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##269: assume false; [2021-10-11 02:32:19,349 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##270: assume !false; [2021-10-11 02:32:19,349 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##446: assume !false; [2021-10-11 02:32:19,350 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##209: assume false; [2021-10-11 02:32:19,350 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##210: assume !false; [2021-10-11 02:32:19,350 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##463: assume false; [2021-10-11 02:32:19,350 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##464: assume !false; [2021-10-11 02:32:19,350 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##470: assume false; [2021-10-11 02:32:19,351 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##232: assume false; [2021-10-11 02:32:19,351 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##471: assume !false; [2021-10-11 02:32:19,351 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##233: assume !false; [2021-10-11 02:32:19,351 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##242: assume !false; [2021-10-11 02:32:19,351 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##241: assume false; [2021-10-11 02:32:19,351 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##489: assume false; [2021-10-11 02:32:19,352 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##246: assume !false; [2021-10-11 02:32:19,352 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##245: assume false; [2021-10-11 02:32:19,352 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2021-10-11 02:32:19,352 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2021-10-11 02:32:19,353 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##86: assume !false; [2021-10-11 02:32:19,353 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume false; [2021-10-11 02:32:19,353 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##175: assume !false; [2021-10-11 02:32:19,353 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##174: assume false; [2021-10-11 02:32:19,353 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##180: assume false; [2021-10-11 02:32:19,353 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##181: assume !false; [2021-10-11 02:32:19,354 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##56: assume !false; [2021-10-11 02:32:19,354 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##55: assume false; [2021-10-11 02:32:19,354 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##137: assume false; [2021-10-11 02:32:19,354 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##35: assume !false; [2021-10-11 02:32:19,354 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##34: assume false; [2021-10-11 02:32:19,355 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##138: assume !false; [2021-10-11 02:32:19,355 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##393: assume false; [2021-10-11 02:32:19,355 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume false; [2021-10-11 02:32:19,355 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##394: assume !false; [2021-10-11 02:32:19,355 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume !false; [2021-10-11 02:32:19,355 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##164: assume !false; [2021-10-11 02:32:19,356 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##163: assume false; [2021-10-11 02:32:19,356 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##329: assume false; [2021-10-11 02:32:19,356 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##330: assume !false; [2021-10-11 02:32:19,356 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##108: assume !false; [2021-10-11 02:32:19,356 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##107: assume false; [2021-10-11 02:32:19,356 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##364: assume !false; [2021-10-11 02:32:19,357 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##363: assume false; [2021-10-11 02:32:20,617 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:32:20,617 INFO L299 CfgBuilder]: Removed 205 assume(true) statements. [2021-10-11 02:32:20,620 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:32:20 BoogieIcfgContainer [2021-10-11 02:32:20,620 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:32:20,622 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:32:20,622 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:32:20,626 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:32:20,626 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:32:16" (1/3) ... [2021-10-11 02:32:20,627 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@512552bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:32:20, skipping insertion in model container [2021-10-11 02:32:20,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:17" (2/3) ... [2021-10-11 02:32:20,627 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@512552bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:32:20, skipping insertion in model container [2021-10-11 02:32:20,628 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:32:20" (3/3) ... [2021-10-11 02:32:20,629 INFO L111 eAbstractionObserver]: Analyzing ICFG floppy_simpl3.cil-2.c [2021-10-11 02:32:20,645 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:32:20,649 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 41 error locations. [2021-10-11 02:32:20,662 INFO L253 AbstractCegarLoop]: Starting to check reachability of 41 error locations. [2021-10-11 02:32:20,684 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:32:20,684 INFO L378 AbstractCegarLoop]: Hoare is false [2021-10-11 02:32:20,684 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:32:20,685 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:32:20,685 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:32:20,685 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:32:20,685 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:32:20,685 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:32:20,707 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states. [2021-10-11 02:32:20,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-11 02:32:20,714 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:20,714 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-11 02:32:20,715 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-10-11 02:32:20,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:20,722 INFO L82 PathProgramCache]: Analyzing trace with hash 49006345, now seen corresponding path program 1 times [2021-10-11 02:32:20,732 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:32:20,732 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389338252] [2021-10-11 02:32:20,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:32:20,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:20,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:20,980 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389338252] [2021-10-11 02:32:20,984 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:20,984 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:32:20,985 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317320351] [2021-10-11 02:32:20,991 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:32:20,991 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:32:21,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:32:21,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:32:21,012 INFO L87 Difference]: Start difference. First operand 256 states. Second operand 3 states. [2021-10-11 02:32:21,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:21,107 INFO L93 Difference]: Finished difference Result 256 states and 338 transitions. [2021-10-11 02:32:21,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:32:21,111 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2021-10-11 02:32:21,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:21,142 INFO L225 Difference]: With dead ends: 256 [2021-10-11 02:32:21,143 INFO L226 Difference]: Without dead ends: 255 [2021-10-11 02:32:21,144 INFO L677 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 [2021-10-11 02:32:21,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2021-10-11 02:32:21,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 255. [2021-10-11 02:32:21,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 255 states. [2021-10-11 02:32:21,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 337 transitions. [2021-10-11 02:32:21,223 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 337 transitions. Word has length 4 [2021-10-11 02:32:21,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:21,223 INFO L481 AbstractCegarLoop]: Abstraction has 255 states and 337 transitions. [2021-10-11 02:32:21,223 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:32:21,223 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 337 transitions. [2021-10-11 02:32:21,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-11 02:32:21,226 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:21,226 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-11 02:32:21,227 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 02:32:21,227 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-10-11 02:32:21,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:21,230 INFO L82 PathProgramCache]: Analyzing trace with hash 1519202053, now seen corresponding path program 1 times [2021-10-11 02:32:21,230 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:32:21,230 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60431415] [2021-10-11 02:32:21,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:32:21,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:21,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:21,286 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60431415] [2021-10-11 02:32:21,286 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:21,287 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-11 02:32:21,287 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452849440] [2021-10-11 02:32:21,288 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:32:21,288 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:32:21,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:32:21,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:32:21,290 INFO L87 Difference]: Start difference. First operand 255 states and 337 transitions. Second operand 3 states. [2021-10-11 02:32:21,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:21,324 INFO L93 Difference]: Finished difference Result 254 states and 336 transitions. [2021-10-11 02:32:21,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:32:21,324 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2021-10-11 02:32:21,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:21,329 INFO L225 Difference]: With dead ends: 254 [2021-10-11 02:32:21,332 INFO L226 Difference]: Without dead ends: 252 [2021-10-11 02:32:21,332 INFO L677 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 [2021-10-11 02:32:21,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2021-10-11 02:32:21,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 252. [2021-10-11 02:32:21,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 252 states. [2021-10-11 02:32:21,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 327 transitions. [2021-10-11 02:32:21,353 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 327 transitions. Word has length 5 [2021-10-11 02:32:21,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:21,353 INFO L481 AbstractCegarLoop]: Abstraction has 252 states and 327 transitions. [2021-10-11 02:32:21,353 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:32:21,353 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 327 transitions. [2021-10-11 02:32:21,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-11 02:32:21,354 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:21,354 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:21,354 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 02:32:21,355 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-10-11 02:32:21,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:21,357 INFO L82 PathProgramCache]: Analyzing trace with hash -332329407, now seen corresponding path program 1 times [2021-10-11 02:32:21,358 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:32:21,358 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739147778] [2021-10-11 02:32:21,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:32:21,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:21,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:21,478 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739147778] [2021-10-11 02:32:21,479 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:21,479 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:32:21,479 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429882600] [2021-10-11 02:32:21,479 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:32:21,480 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:32:21,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:32:21,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:32:21,481 INFO L87 Difference]: Start difference. First operand 252 states and 327 transitions. Second operand 3 states. [2021-10-11 02:32:21,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:21,693 INFO L93 Difference]: Finished difference Result 256 states and 339 transitions. [2021-10-11 02:32:21,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:32:21,694 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2021-10-11 02:32:21,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:21,697 INFO L225 Difference]: With dead ends: 256 [2021-10-11 02:32:21,697 INFO L226 Difference]: Without dead ends: 256 [2021-10-11 02:32:21,698 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:32:21,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2021-10-11 02:32:21,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 256. [2021-10-11 02:32:21,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 256 states. [2021-10-11 02:32:21,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 339 transitions. [2021-10-11 02:32:21,722 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 339 transitions. Word has length 7 [2021-10-11 02:32:21,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:21,722 INFO L481 AbstractCegarLoop]: Abstraction has 256 states and 339 transitions. [2021-10-11 02:32:21,722 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:32:21,722 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 339 transitions. [2021-10-11 02:32:21,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-11 02:32:21,723 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:21,723 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:21,723 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-11 02:32:21,724 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-10-11 02:32:21,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:21,724 INFO L82 PathProgramCache]: Analyzing trace with hash -1480777066, now seen corresponding path program 1 times [2021-10-11 02:32:21,724 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:32:21,725 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933883939] [2021-10-11 02:32:21,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:32:21,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:21,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:21,803 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933883939] [2021-10-11 02:32:21,803 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:21,804 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:32:21,804 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252867932] [2021-10-11 02:32:21,804 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:32:21,804 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:32:21,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:32:21,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:32:21,805 INFO L87 Difference]: Start difference. First operand 256 states and 339 transitions. Second operand 3 states. [2021-10-11 02:32:21,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:21,850 INFO L93 Difference]: Finished difference Result 330 states and 430 transitions. [2021-10-11 02:32:21,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:32:21,855 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2021-10-11 02:32:21,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:21,864 INFO L225 Difference]: With dead ends: 330 [2021-10-11 02:32:21,865 INFO L226 Difference]: Without dead ends: 330 [2021-10-11 02:32:21,865 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:32:21,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2021-10-11 02:32:21,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 244. [2021-10-11 02:32:21,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244 states. [2021-10-11 02:32:21,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 322 transitions. [2021-10-11 02:32:21,884 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 322 transitions. Word has length 9 [2021-10-11 02:32:21,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:21,885 INFO L481 AbstractCegarLoop]: Abstraction has 244 states and 322 transitions. [2021-10-11 02:32:21,885 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:32:21,885 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 322 transitions. [2021-10-11 02:32:21,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-11 02:32:21,890 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:21,890 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:21,890 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-11 02:32:21,891 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-10-11 02:32:21,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:21,891 INFO L82 PathProgramCache]: Analyzing trace with hash -1762256508, now seen corresponding path program 1 times [2021-10-11 02:32:21,892 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:32:21,892 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993417447] [2021-10-11 02:32:21,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:32:21,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:21,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:21,982 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993417447] [2021-10-11 02:32:21,982 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:21,982 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:32:21,983 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428696821] [2021-10-11 02:32:21,983 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:32:21,983 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:32:21,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:32:21,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:32:21,984 INFO L87 Difference]: Start difference. First operand 244 states and 322 transitions. Second operand 3 states. [2021-10-11 02:32:22,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:22,006 INFO L93 Difference]: Finished difference Result 281 states and 366 transitions. [2021-10-11 02:32:22,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:32:22,007 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2021-10-11 02:32:22,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:22,009 INFO L225 Difference]: With dead ends: 281 [2021-10-11 02:32:22,009 INFO L226 Difference]: Without dead ends: 281 [2021-10-11 02:32:22,009 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:32:22,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2021-10-11 02:32:22,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 262. [2021-10-11 02:32:22,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2021-10-11 02:32:22,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 348 transitions. [2021-10-11 02:32:22,017 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 348 transitions. Word has length 13 [2021-10-11 02:32:22,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:22,018 INFO L481 AbstractCegarLoop]: Abstraction has 262 states and 348 transitions. [2021-10-11 02:32:22,018 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:32:22,018 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 348 transitions. [2021-10-11 02:32:22,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-11 02:32:22,020 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:22,020 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:22,020 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-11 02:32:22,021 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-10-11 02:32:22,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:22,021 INFO L82 PathProgramCache]: Analyzing trace with hash 933871802, now seen corresponding path program 1 times [2021-10-11 02:32:22,022 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:32:22,022 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390057446] [2021-10-11 02:32:22,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:32:22,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:22,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:22,096 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390057446] [2021-10-11 02:32:22,096 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:22,096 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:32:22,098 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619464797] [2021-10-11 02:32:22,098 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:32:22,099 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:32:22,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:32:22,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:32:22,100 INFO L87 Difference]: Start difference. First operand 262 states and 348 transitions. Second operand 4 states. [2021-10-11 02:32:22,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:22,131 INFO L93 Difference]: Finished difference Result 289 states and 371 transitions. [2021-10-11 02:32:22,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:32:22,132 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2021-10-11 02:32:22,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:22,134 INFO L225 Difference]: With dead ends: 289 [2021-10-11 02:32:22,134 INFO L226 Difference]: Without dead ends: 289 [2021-10-11 02:32:22,135 INFO L677 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 [2021-10-11 02:32:22,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2021-10-11 02:32:22,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 249. [2021-10-11 02:32:22,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2021-10-11 02:32:22,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 327 transitions. [2021-10-11 02:32:22,144 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 327 transitions. Word has length 16 [2021-10-11 02:32:22,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:22,145 INFO L481 AbstractCegarLoop]: Abstraction has 249 states and 327 transitions. [2021-10-11 02:32:22,145 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:32:22,145 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 327 transitions. [2021-10-11 02:32:22,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-11 02:32:22,153 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:22,153 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:22,153 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-11 02:32:22,155 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-10-11 02:32:22,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:22,155 INFO L82 PathProgramCache]: Analyzing trace with hash 179002156, now seen corresponding path program 1 times [2021-10-11 02:32:22,155 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:32:22,156 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429365882] [2021-10-11 02:32:22,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:32:22,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:22,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:22,227 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429365882] [2021-10-11 02:32:22,227 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:22,227 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:32:22,228 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842986548] [2021-10-11 02:32:22,228 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:32:22,228 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:32:22,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:32:22,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:32:22,229 INFO L87 Difference]: Start difference. First operand 249 states and 327 transitions. Second operand 3 states. [2021-10-11 02:32:22,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:22,401 INFO L93 Difference]: Finished difference Result 266 states and 348 transitions. [2021-10-11 02:32:22,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:32:22,401 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2021-10-11 02:32:22,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:22,408 INFO L225 Difference]: With dead ends: 266 [2021-10-11 02:32:22,408 INFO L226 Difference]: Without dead ends: 266 [2021-10-11 02:32:22,409 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:32:22,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2021-10-11 02:32:22,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2021-10-11 02:32:22,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2021-10-11 02:32:22,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 348 transitions. [2021-10-11 02:32:22,418 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 348 transitions. Word has length 16 [2021-10-11 02:32:22,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:22,419 INFO L481 AbstractCegarLoop]: Abstraction has 266 states and 348 transitions. [2021-10-11 02:32:22,419 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:32:22,419 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 348 transitions. [2021-10-11 02:32:22,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-11 02:32:22,421 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:22,421 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:22,422 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-11 02:32:22,422 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-10-11 02:32:22,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:22,423 INFO L82 PathProgramCache]: Analyzing trace with hash 1804305271, now seen corresponding path program 1 times [2021-10-11 02:32:22,423 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:32:22,424 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740532293] [2021-10-11 02:32:22,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:32:22,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:22,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:22,482 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740532293] [2021-10-11 02:32:22,482 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:22,483 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:32:22,484 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760905426] [2021-10-11 02:32:22,485 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:32:22,485 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:32:22,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:32:22,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:32:22,486 INFO L87 Difference]: Start difference. First operand 266 states and 348 transitions. Second operand 3 states. [2021-10-11 02:32:22,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:22,628 INFO L93 Difference]: Finished difference Result 254 states and 336 transitions. [2021-10-11 02:32:22,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:32:22,629 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2021-10-11 02:32:22,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:22,631 INFO L225 Difference]: With dead ends: 254 [2021-10-11 02:32:22,631 INFO L226 Difference]: Without dead ends: 254 [2021-10-11 02:32:22,632 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:32:22,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2021-10-11 02:32:22,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 254. [2021-10-11 02:32:22,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2021-10-11 02:32:22,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 336 transitions. [2021-10-11 02:32:22,642 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 336 transitions. Word has length 17 [2021-10-11 02:32:22,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:22,643 INFO L481 AbstractCegarLoop]: Abstraction has 254 states and 336 transitions. [2021-10-11 02:32:22,643 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:32:22,643 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 336 transitions. [2021-10-11 02:32:22,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-11 02:32:22,644 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:22,644 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:22,644 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-11 02:32:22,645 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-10-11 02:32:22,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:22,645 INFO L82 PathProgramCache]: Analyzing trace with hash -232870678, now seen corresponding path program 1 times [2021-10-11 02:32:22,647 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:32:22,647 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983400472] [2021-10-11 02:32:22,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:32:22,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:22,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:22,699 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983400472] [2021-10-11 02:32:22,704 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:22,705 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:32:22,705 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773405711] [2021-10-11 02:32:22,705 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:32:22,706 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:32:22,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:32:22,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:32:22,708 INFO L87 Difference]: Start difference. First operand 254 states and 336 transitions. Second operand 3 states. [2021-10-11 02:32:22,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:22,844 INFO L93 Difference]: Finished difference Result 251 states and 332 transitions. [2021-10-11 02:32:22,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:32:22,844 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2021-10-11 02:32:22,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:22,846 INFO L225 Difference]: With dead ends: 251 [2021-10-11 02:32:22,847 INFO L226 Difference]: Without dead ends: 251 [2021-10-11 02:32:22,847 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:32:22,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2021-10-11 02:32:22,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 251. [2021-10-11 02:32:22,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 251 states. [2021-10-11 02:32:22,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 332 transitions. [2021-10-11 02:32:22,854 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 332 transitions. Word has length 17 [2021-10-11 02:32:22,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:22,854 INFO L481 AbstractCegarLoop]: Abstraction has 251 states and 332 transitions. [2021-10-11 02:32:22,854 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:32:22,854 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 332 transitions. [2021-10-11 02:32:22,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-11 02:32:22,855 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:22,855 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:22,856 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-11 02:32:22,856 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-10-11 02:32:22,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:22,857 INFO L82 PathProgramCache]: Analyzing trace with hash 1271555609, now seen corresponding path program 1 times [2021-10-11 02:32:22,857 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:32:22,857 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229791328] [2021-10-11 02:32:22,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:32:22,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:22,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:22,890 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229791328] [2021-10-11 02:32:22,890 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:22,890 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:32:22,891 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146980719] [2021-10-11 02:32:22,892 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:32:22,892 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:32:22,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:32:22,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:32:22,893 INFO L87 Difference]: Start difference. First operand 251 states and 332 transitions. Second operand 4 states. [2021-10-11 02:32:22,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:22,941 INFO L93 Difference]: Finished difference Result 262 states and 344 transitions. [2021-10-11 02:32:22,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:32:22,942 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2021-10-11 02:32:22,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:22,944 INFO L225 Difference]: With dead ends: 262 [2021-10-11 02:32:22,944 INFO L226 Difference]: Without dead ends: 249 [2021-10-11 02:32:22,944 INFO L677 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 [2021-10-11 02:32:22,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2021-10-11 02:32:22,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 249. [2021-10-11 02:32:22,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2021-10-11 02:32:22,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 329 transitions. [2021-10-11 02:32:22,950 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 329 transitions. Word has length 17 [2021-10-11 02:32:22,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:22,951 INFO L481 AbstractCegarLoop]: Abstraction has 249 states and 329 transitions. [2021-10-11 02:32:22,951 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:32:22,951 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 329 transitions. [2021-10-11 02:32:22,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-11 02:32:22,952 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:22,952 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:22,952 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-11 02:32:22,953 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-10-11 02:32:22,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:22,953 INFO L82 PathProgramCache]: Analyzing trace with hash 203415821, now seen corresponding path program 1 times [2021-10-11 02:32:22,953 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:32:22,953 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674626942] [2021-10-11 02:32:22,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:32:22,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:22,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:22,996 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674626942] [2021-10-11 02:32:22,996 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:22,996 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:32:22,997 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378596279] [2021-10-11 02:32:22,997 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:32:22,997 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:32:22,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:32:22,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:32:22,999 INFO L87 Difference]: Start difference. First operand 249 states and 329 transitions. Second operand 3 states. [2021-10-11 02:32:23,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:23,030 INFO L93 Difference]: Finished difference Result 247 states and 317 transitions. [2021-10-11 02:32:23,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:32:23,032 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2021-10-11 02:32:23,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:23,035 INFO L225 Difference]: With dead ends: 247 [2021-10-11 02:32:23,036 INFO L226 Difference]: Without dead ends: 247 [2021-10-11 02:32:23,036 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:32:23,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2021-10-11 02:32:23,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 233. [2021-10-11 02:32:23,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2021-10-11 02:32:23,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 302 transitions. [2021-10-11 02:32:23,042 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 302 transitions. Word has length 18 [2021-10-11 02:32:23,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:23,044 INFO L481 AbstractCegarLoop]: Abstraction has 233 states and 302 transitions. [2021-10-11 02:32:23,045 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:32:23,045 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 302 transitions. [2021-10-11 02:32:23,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-11 02:32:23,049 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:23,050 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:23,050 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-11 02:32:23,050 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-10-11 02:32:23,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:23,055 INFO L82 PathProgramCache]: Analyzing trace with hash -1474307115, now seen corresponding path program 1 times [2021-10-11 02:32:23,055 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:32:23,055 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51423088] [2021-10-11 02:32:23,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:32:23,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:23,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:23,089 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51423088] [2021-10-11 02:32:23,090 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:23,090 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:32:23,090 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912109703] [2021-10-11 02:32:23,090 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:32:23,090 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:32:23,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:32:23,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:32:23,091 INFO L87 Difference]: Start difference. First operand 233 states and 302 transitions. Second operand 3 states. [2021-10-11 02:32:23,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:23,268 INFO L93 Difference]: Finished difference Result 296 states and 381 transitions. [2021-10-11 02:32:23,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:32:23,269 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2021-10-11 02:32:23,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:23,271 INFO L225 Difference]: With dead ends: 296 [2021-10-11 02:32:23,271 INFO L226 Difference]: Without dead ends: 296 [2021-10-11 02:32:23,271 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:32:23,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2021-10-11 02:32:23,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 241. [2021-10-11 02:32:23,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states. [2021-10-11 02:32:23,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 314 transitions. [2021-10-11 02:32:23,278 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 314 transitions. Word has length 19 [2021-10-11 02:32:23,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:23,278 INFO L481 AbstractCegarLoop]: Abstraction has 241 states and 314 transitions. [2021-10-11 02:32:23,278 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:32:23,278 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 314 transitions. [2021-10-11 02:32:23,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-11 02:32:23,279 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:23,279 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:23,279 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-11 02:32:23,280 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-10-11 02:32:23,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:23,280 INFO L82 PathProgramCache]: Analyzing trace with hash 1533461189, now seen corresponding path program 1 times [2021-10-11 02:32:23,280 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:32:23,281 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668137027] [2021-10-11 02:32:23,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:32:23,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:23,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:23,320 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668137027] [2021-10-11 02:32:23,320 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:23,321 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:32:23,321 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683274749] [2021-10-11 02:32:23,321 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:32:23,321 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:32:23,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:32:23,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:32:23,322 INFO L87 Difference]: Start difference. First operand 241 states and 314 transitions. Second operand 4 states. [2021-10-11 02:32:23,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:23,525 INFO L93 Difference]: Finished difference Result 236 states and 306 transitions. [2021-10-11 02:32:23,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:32:23,526 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2021-10-11 02:32:23,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:23,528 INFO L225 Difference]: With dead ends: 236 [2021-10-11 02:32:23,528 INFO L226 Difference]: Without dead ends: 236 [2021-10-11 02:32:23,529 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:32:23,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2021-10-11 02:32:23,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 236. [2021-10-11 02:32:23,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236 states. [2021-10-11 02:32:23,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 306 transitions. [2021-10-11 02:32:23,535 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 306 transitions. Word has length 20 [2021-10-11 02:32:23,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:23,535 INFO L481 AbstractCegarLoop]: Abstraction has 236 states and 306 transitions. [2021-10-11 02:32:23,536 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:32:23,536 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 306 transitions. [2021-10-11 02:32:23,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-11 02:32:23,536 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:23,537 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:23,537 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-11 02:32:23,537 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-10-11 02:32:23,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:23,538 INFO L82 PathProgramCache]: Analyzing trace with hash -464356042, now seen corresponding path program 1 times [2021-10-11 02:32:23,538 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:32:23,538 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355350674] [2021-10-11 02:32:23,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:32:23,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:23,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:23,580 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355350674] [2021-10-11 02:32:23,581 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:23,581 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:32:23,581 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682483110] [2021-10-11 02:32:23,581 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:32:23,581 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:32:23,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:32:23,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:32:23,582 INFO L87 Difference]: Start difference. First operand 236 states and 306 transitions. Second operand 3 states. [2021-10-11 02:32:23,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:23,602 INFO L93 Difference]: Finished difference Result 259 states and 330 transitions. [2021-10-11 02:32:23,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:32:23,602 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2021-10-11 02:32:23,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:23,604 INFO L225 Difference]: With dead ends: 259 [2021-10-11 02:32:23,604 INFO L226 Difference]: Without dead ends: 259 [2021-10-11 02:32:23,605 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:32:23,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2021-10-11 02:32:23,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 224. [2021-10-11 02:32:23,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2021-10-11 02:32:23,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 288 transitions. [2021-10-11 02:32:23,610 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 288 transitions. Word has length 20 [2021-10-11 02:32:23,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:23,610 INFO L481 AbstractCegarLoop]: Abstraction has 224 states and 288 transitions. [2021-10-11 02:32:23,610 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:32:23,611 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 288 transitions. [2021-10-11 02:32:23,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-11 02:32:23,611 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:23,611 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:23,612 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-10-11 02:32:23,612 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-10-11 02:32:23,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:23,612 INFO L82 PathProgramCache]: Analyzing trace with hash 347708576, now seen corresponding path program 1 times [2021-10-11 02:32:23,613 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:32:23,613 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959662219] [2021-10-11 02:32:23,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:32:23,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:23,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:23,757 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959662219] [2021-10-11 02:32:23,757 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:23,757 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:32:23,758 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828186939] [2021-10-11 02:32:23,758 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:32:23,758 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:32:23,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:32:23,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:32:23,759 INFO L87 Difference]: Start difference. First operand 224 states and 288 transitions. Second operand 3 states. [2021-10-11 02:32:23,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:23,792 INFO L93 Difference]: Finished difference Result 226 states and 285 transitions. [2021-10-11 02:32:23,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:32:23,793 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2021-10-11 02:32:23,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:23,794 INFO L225 Difference]: With dead ends: 226 [2021-10-11 02:32:23,795 INFO L226 Difference]: Without dead ends: 226 [2021-10-11 02:32:23,795 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:32:23,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2021-10-11 02:32:23,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 212. [2021-10-11 02:32:23,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2021-10-11 02:32:23,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 270 transitions. [2021-10-11 02:32:23,801 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 270 transitions. Word has length 21 [2021-10-11 02:32:23,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:23,801 INFO L481 AbstractCegarLoop]: Abstraction has 212 states and 270 transitions. [2021-10-11 02:32:23,802 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:32:23,802 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 270 transitions. [2021-10-11 02:32:23,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-11 02:32:23,803 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:23,803 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:23,803 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-10-11 02:32:23,803 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-10-11 02:32:23,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:23,804 INFO L82 PathProgramCache]: Analyzing trace with hash -325807387, now seen corresponding path program 1 times [2021-10-11 02:32:23,804 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:32:23,804 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253941611] [2021-10-11 02:32:23,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:32:23,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:23,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:23,856 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253941611] [2021-10-11 02:32:23,857 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:23,857 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:32:23,857 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544085685] [2021-10-11 02:32:23,857 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:32:23,858 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:32:23,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:32:23,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:32:23,859 INFO L87 Difference]: Start difference. First operand 212 states and 270 transitions. Second operand 4 states. [2021-10-11 02:32:24,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:24,025 INFO L93 Difference]: Finished difference Result 212 states and 267 transitions. [2021-10-11 02:32:24,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:32:24,026 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2021-10-11 02:32:24,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:24,028 INFO L225 Difference]: With dead ends: 212 [2021-10-11 02:32:24,028 INFO L226 Difference]: Without dead ends: 212 [2021-10-11 02:32:24,028 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:32:24,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2021-10-11 02:32:24,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 212. [2021-10-11 02:32:24,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2021-10-11 02:32:24,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 267 transitions. [2021-10-11 02:32:24,033 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 267 transitions. Word has length 22 [2021-10-11 02:32:24,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:24,034 INFO L481 AbstractCegarLoop]: Abstraction has 212 states and 267 transitions. [2021-10-11 02:32:24,034 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:32:24,034 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 267 transitions. [2021-10-11 02:32:24,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-11 02:32:24,035 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:24,035 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:24,035 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-10-11 02:32:24,035 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-10-11 02:32:24,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:24,036 INFO L82 PathProgramCache]: Analyzing trace with hash 93394197, now seen corresponding path program 1 times [2021-10-11 02:32:24,036 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:32:24,036 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375259156] [2021-10-11 02:32:24,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:32:24,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:24,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:24,112 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375259156] [2021-10-11 02:32:24,113 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:24,113 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 02:32:24,113 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95840280] [2021-10-11 02:32:24,113 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:32:24,114 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:32:24,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:32:24,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:32:24,115 INFO L87 Difference]: Start difference. First operand 212 states and 267 transitions. Second operand 5 states. [2021-10-11 02:32:24,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:24,404 INFO L93 Difference]: Finished difference Result 274 states and 343 transitions. [2021-10-11 02:32:24,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 02:32:24,404 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2021-10-11 02:32:24,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:24,406 INFO L225 Difference]: With dead ends: 274 [2021-10-11 02:32:24,406 INFO L226 Difference]: Without dead ends: 274 [2021-10-11 02:32:24,407 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:32:24,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2021-10-11 02:32:24,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 212. [2021-10-11 02:32:24,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2021-10-11 02:32:24,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 267 transitions. [2021-10-11 02:32:24,413 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 267 transitions. Word has length 23 [2021-10-11 02:32:24,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:24,414 INFO L481 AbstractCegarLoop]: Abstraction has 212 states and 267 transitions. [2021-10-11 02:32:24,414 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:32:24,414 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 267 transitions. [2021-10-11 02:32:24,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-11 02:32:24,415 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:24,415 INFO L422 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] [2021-10-11 02:32:24,415 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-10-11 02:32:24,415 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-10-11 02:32:24,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:24,416 INFO L82 PathProgramCache]: Analyzing trace with hash -1423251781, now seen corresponding path program 1 times [2021-10-11 02:32:24,416 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:32:24,416 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997613628] [2021-10-11 02:32:24,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:32:24,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:24,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:24,468 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997613628] [2021-10-11 02:32:24,468 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:24,468 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 02:32:24,469 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013531906] [2021-10-11 02:32:24,469 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:32:24,469 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:32:24,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:32:24,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:32:24,470 INFO L87 Difference]: Start difference. First operand 212 states and 267 transitions. Second operand 5 states. [2021-10-11 02:32:24,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:24,548 INFO L93 Difference]: Finished difference Result 224 states and 280 transitions. [2021-10-11 02:32:24,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:32:24,549 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2021-10-11 02:32:24,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:24,550 INFO L225 Difference]: With dead ends: 224 [2021-10-11 02:32:24,550 INFO L226 Difference]: Without dead ends: 202 [2021-10-11 02:32:24,551 INFO L677 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 [2021-10-11 02:32:24,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2021-10-11 02:32:24,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2021-10-11 02:32:24,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2021-10-11 02:32:24,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 251 transitions. [2021-10-11 02:32:24,556 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 251 transitions. Word has length 24 [2021-10-11 02:32:24,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:24,556 INFO L481 AbstractCegarLoop]: Abstraction has 202 states and 251 transitions. [2021-10-11 02:32:24,556 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:32:24,557 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 251 transitions. [2021-10-11 02:32:24,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-11 02:32:24,557 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:24,557 INFO L422 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] [2021-10-11 02:32:24,558 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-10-11 02:32:24,558 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-10-11 02:32:24,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:24,559 INFO L82 PathProgramCache]: Analyzing trace with hash 2113500424, now seen corresponding path program 1 times [2021-10-11 02:32:24,559 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:32:24,559 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444779228] [2021-10-11 02:32:24,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:32:24,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:24,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:24,589 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444779228] [2021-10-11 02:32:24,590 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:24,590 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:32:24,590 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226287286] [2021-10-11 02:32:24,590 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:32:24,591 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:32:24,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:32:24,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:32:24,591 INFO L87 Difference]: Start difference. First operand 202 states and 251 transitions. Second operand 3 states. [2021-10-11 02:32:24,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:24,716 INFO L93 Difference]: Finished difference Result 232 states and 283 transitions. [2021-10-11 02:32:24,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:32:24,716 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2021-10-11 02:32:24,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:24,718 INFO L225 Difference]: With dead ends: 232 [2021-10-11 02:32:24,718 INFO L226 Difference]: Without dead ends: 232 [2021-10-11 02:32:24,719 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:32:24,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2021-10-11 02:32:24,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 222. [2021-10-11 02:32:24,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 222 states. [2021-10-11 02:32:24,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 274 transitions. [2021-10-11 02:32:24,725 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 274 transitions. Word has length 24 [2021-10-11 02:32:24,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:24,725 INFO L481 AbstractCegarLoop]: Abstraction has 222 states and 274 transitions. [2021-10-11 02:32:24,725 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:32:24,726 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 274 transitions. [2021-10-11 02:32:24,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-11 02:32:24,726 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:24,726 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:24,727 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-10-11 02:32:24,727 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-10-11 02:32:24,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:24,728 INFO L82 PathProgramCache]: Analyzing trace with hash 1111471689, now seen corresponding path program 1 times [2021-10-11 02:32:24,728 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:32:24,728 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502603047] [2021-10-11 02:32:24,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:32:24,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:24,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:24,769 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502603047] [2021-10-11 02:32:24,769 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:24,769 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 02:32:24,769 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316882064] [2021-10-11 02:32:24,770 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:32:24,770 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:32:24,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:32:24,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:32:24,771 INFO L87 Difference]: Start difference. First operand 222 states and 274 transitions. Second operand 5 states. [2021-10-11 02:32:24,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:24,931 INFO L93 Difference]: Finished difference Result 247 states and 301 transitions. [2021-10-11 02:32:24,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 02:32:24,931 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2021-10-11 02:32:24,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:24,933 INFO L225 Difference]: With dead ends: 247 [2021-10-11 02:32:24,933 INFO L226 Difference]: Without dead ends: 246 [2021-10-11 02:32:24,934 INFO L677 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 [2021-10-11 02:32:24,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2021-10-11 02:32:24,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 236. [2021-10-11 02:32:24,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236 states. [2021-10-11 02:32:24,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 291 transitions. [2021-10-11 02:32:24,940 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 291 transitions. Word has length 25 [2021-10-11 02:32:24,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:24,940 INFO L481 AbstractCegarLoop]: Abstraction has 236 states and 291 transitions. [2021-10-11 02:32:24,940 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:32:24,940 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 291 transitions. [2021-10-11 02:32:24,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-11 02:32:24,941 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:24,941 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:24,941 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-10-11 02:32:24,942 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-10-11 02:32:24,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:24,942 INFO L82 PathProgramCache]: Analyzing trace with hash 1111459773, now seen corresponding path program 1 times [2021-10-11 02:32:24,943 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:32:24,943 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608858338] [2021-10-11 02:32:24,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:32:24,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:24,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:24,985 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608858338] [2021-10-11 02:32:24,986 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:24,986 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:32:24,986 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600074905] [2021-10-11 02:32:24,986 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:32:24,987 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:32:24,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:32:24,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:32:24,987 INFO L87 Difference]: Start difference. First operand 236 states and 291 transitions. Second operand 4 states. [2021-10-11 02:32:25,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:25,136 INFO L93 Difference]: Finished difference Result 246 states and 298 transitions. [2021-10-11 02:32:25,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:32:25,137 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2021-10-11 02:32:25,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:25,138 INFO L225 Difference]: With dead ends: 246 [2021-10-11 02:32:25,139 INFO L226 Difference]: Without dead ends: 246 [2021-10-11 02:32:25,139 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:32:25,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2021-10-11 02:32:25,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 236. [2021-10-11 02:32:25,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236 states. [2021-10-11 02:32:25,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 289 transitions. [2021-10-11 02:32:25,146 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 289 transitions. Word has length 25 [2021-10-11 02:32:25,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:25,146 INFO L481 AbstractCegarLoop]: Abstraction has 236 states and 289 transitions. [2021-10-11 02:32:25,146 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:32:25,146 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 289 transitions. [2021-10-11 02:32:25,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-11 02:32:25,147 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:25,147 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:25,148 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-10-11 02:32:25,148 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-10-11 02:32:25,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:25,149 INFO L82 PathProgramCache]: Analyzing trace with hash -55354404, now seen corresponding path program 1 times [2021-10-11 02:32:25,149 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:32:25,149 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415830271] [2021-10-11 02:32:25,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:32:25,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:25,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:25,186 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415830271] [2021-10-11 02:32:25,186 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:25,186 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:32:25,186 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368655877] [2021-10-11 02:32:25,186 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:32:25,187 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:32:25,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:32:25,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:32:25,188 INFO L87 Difference]: Start difference. First operand 236 states and 289 transitions. Second operand 4 states. [2021-10-11 02:32:25,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:25,372 INFO L93 Difference]: Finished difference Result 236 states and 283 transitions. [2021-10-11 02:32:25,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:32:25,373 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2021-10-11 02:32:25,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:25,375 INFO L225 Difference]: With dead ends: 236 [2021-10-11 02:32:25,375 INFO L226 Difference]: Without dead ends: 236 [2021-10-11 02:32:25,377 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:32:25,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2021-10-11 02:32:25,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 236. [2021-10-11 02:32:25,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236 states. [2021-10-11 02:32:25,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 283 transitions. [2021-10-11 02:32:25,384 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 283 transitions. Word has length 25 [2021-10-11 02:32:25,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:25,385 INFO L481 AbstractCegarLoop]: Abstraction has 236 states and 283 transitions. [2021-10-11 02:32:25,385 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:32:25,385 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 283 transitions. [2021-10-11 02:32:25,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-11 02:32:25,386 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:25,386 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:25,387 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-10-11 02:32:25,388 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-10-11 02:32:25,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:25,389 INFO L82 PathProgramCache]: Analyzing trace with hash -559828025, now seen corresponding path program 1 times [2021-10-11 02:32:25,389 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:32:25,389 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509964334] [2021-10-11 02:32:25,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:32:25,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:25,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:25,484 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509964334] [2021-10-11 02:32:25,484 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:25,484 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 02:32:25,485 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208232597] [2021-10-11 02:32:25,485 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:32:25,485 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:32:25,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:32:25,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:32:25,491 INFO L87 Difference]: Start difference. First operand 236 states and 283 transitions. Second operand 5 states. [2021-10-11 02:32:25,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:25,753 INFO L93 Difference]: Finished difference Result 254 states and 307 transitions. [2021-10-11 02:32:25,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:32:25,754 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2021-10-11 02:32:25,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:25,756 INFO L225 Difference]: With dead ends: 254 [2021-10-11 02:32:25,756 INFO L226 Difference]: Without dead ends: 254 [2021-10-11 02:32:25,757 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:32:25,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2021-10-11 02:32:25,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 236. [2021-10-11 02:32:25,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236 states. [2021-10-11 02:32:25,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 283 transitions. [2021-10-11 02:32:25,763 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 283 transitions. Word has length 25 [2021-10-11 02:32:25,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:25,764 INFO L481 AbstractCegarLoop]: Abstraction has 236 states and 283 transitions. [2021-10-11 02:32:25,764 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:32:25,764 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 283 transitions. [2021-10-11 02:32:25,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-11 02:32:25,765 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:25,765 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:25,765 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-10-11 02:32:25,766 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-10-11 02:32:25,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:25,766 INFO L82 PathProgramCache]: Analyzing trace with hash -433753737, now seen corresponding path program 1 times [2021-10-11 02:32:25,766 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:32:25,767 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832267198] [2021-10-11 02:32:25,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:32:25,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:25,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:25,815 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832267198] [2021-10-11 02:32:25,816 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:25,816 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:32:25,816 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757407763] [2021-10-11 02:32:25,816 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:32:25,816 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:32:25,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:32:25,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:32:25,820 INFO L87 Difference]: Start difference. First operand 236 states and 283 transitions. Second operand 4 states. [2021-10-11 02:32:25,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:25,951 INFO L93 Difference]: Finished difference Result 243 states and 288 transitions. [2021-10-11 02:32:25,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:32:25,952 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 26 [2021-10-11 02:32:25,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:25,954 INFO L225 Difference]: With dead ends: 243 [2021-10-11 02:32:25,954 INFO L226 Difference]: Without dead ends: 233 [2021-10-11 02:32:25,954 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:32:25,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2021-10-11 02:32:25,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 230. [2021-10-11 02:32:25,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2021-10-11 02:32:25,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 274 transitions. [2021-10-11 02:32:25,960 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 274 transitions. Word has length 26 [2021-10-11 02:32:25,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:25,960 INFO L481 AbstractCegarLoop]: Abstraction has 230 states and 274 transitions. [2021-10-11 02:32:25,961 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:32:25,961 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 274 transitions. [2021-10-11 02:32:25,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-11 02:32:25,961 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:25,962 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:25,962 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-10-11 02:32:25,962 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-10-11 02:32:25,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:25,963 INFO L82 PathProgramCache]: Analyzing trace with hash -222326515, now seen corresponding path program 1 times [2021-10-11 02:32:25,963 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:32:25,963 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715136996] [2021-10-11 02:32:25,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:32:25,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:25,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:25,989 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715136996] [2021-10-11 02:32:25,990 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:25,990 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:32:25,990 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648914533] [2021-10-11 02:32:25,990 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:32:25,991 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:32:25,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:32:25,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:32:25,991 INFO L87 Difference]: Start difference. First operand 230 states and 274 transitions. Second operand 3 states. [2021-10-11 02:32:26,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:26,114 INFO L93 Difference]: Finished difference Result 233 states and 272 transitions. [2021-10-11 02:32:26,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:32:26,115 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2021-10-11 02:32:26,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:26,117 INFO L225 Difference]: With dead ends: 233 [2021-10-11 02:32:26,117 INFO L226 Difference]: Without dead ends: 233 [2021-10-11 02:32:26,117 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:32:26,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2021-10-11 02:32:26,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 225. [2021-10-11 02:32:26,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 225 states. [2021-10-11 02:32:26,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 266 transitions. [2021-10-11 02:32:26,123 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 266 transitions. Word has length 26 [2021-10-11 02:32:26,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:26,124 INFO L481 AbstractCegarLoop]: Abstraction has 225 states and 266 transitions. [2021-10-11 02:32:26,124 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:32:26,124 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 266 transitions. [2021-10-11 02:32:26,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-11 02:32:26,125 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:26,125 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:26,125 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-10-11 02:32:26,126 INFO L429 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-10-11 02:32:26,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:26,126 INFO L82 PathProgramCache]: Analyzing trace with hash 1715268696, now seen corresponding path program 1 times [2021-10-11 02:32:26,126 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:32:26,127 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106984987] [2021-10-11 02:32:26,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:32:26,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:26,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:26,184 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106984987] [2021-10-11 02:32:26,184 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:26,185 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:32:26,185 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021600408] [2021-10-11 02:32:26,185 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:32:26,186 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:32:26,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:32:26,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:32:26,187 INFO L87 Difference]: Start difference. First operand 225 states and 266 transitions. Second operand 4 states. [2021-10-11 02:32:26,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:26,347 INFO L93 Difference]: Finished difference Result 230 states and 268 transitions. [2021-10-11 02:32:26,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:32:26,347 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 27 [2021-10-11 02:32:26,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:26,349 INFO L225 Difference]: With dead ends: 230 [2021-10-11 02:32:26,349 INFO L226 Difference]: Without dead ends: 214 [2021-10-11 02:32:26,349 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:32:26,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2021-10-11 02:32:26,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 209. [2021-10-11 02:32:26,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209 states. [2021-10-11 02:32:26,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 247 transitions. [2021-10-11 02:32:26,355 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 247 transitions. Word has length 27 [2021-10-11 02:32:26,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:26,355 INFO L481 AbstractCegarLoop]: Abstraction has 209 states and 247 transitions. [2021-10-11 02:32:26,355 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:32:26,356 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 247 transitions. [2021-10-11 02:32:26,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-11 02:32:26,356 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:26,357 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:26,357 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-10-11 02:32:26,357 INFO L429 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-10-11 02:32:26,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:26,358 INFO L82 PathProgramCache]: Analyzing trace with hash -419781972, now seen corresponding path program 1 times [2021-10-11 02:32:26,358 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:32:26,358 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612595933] [2021-10-11 02:32:26,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:32:26,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:26,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:26,429 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612595933] [2021-10-11 02:32:26,430 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:26,430 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:32:26,430 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967627054] [2021-10-11 02:32:26,431 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:32:26,431 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:32:26,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:32:26,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:32:26,431 INFO L87 Difference]: Start difference. First operand 209 states and 247 transitions. Second operand 4 states. [2021-10-11 02:32:26,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:26,561 INFO L93 Difference]: Finished difference Result 235 states and 284 transitions. [2021-10-11 02:32:26,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:32:26,562 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 27 [2021-10-11 02:32:26,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:26,563 INFO L225 Difference]: With dead ends: 235 [2021-10-11 02:32:26,564 INFO L226 Difference]: Without dead ends: 235 [2021-10-11 02:32:26,564 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:32:26,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2021-10-11 02:32:26,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 195. [2021-10-11 02:32:26,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2021-10-11 02:32:26,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 232 transitions. [2021-10-11 02:32:26,569 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 232 transitions. Word has length 27 [2021-10-11 02:32:26,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:26,569 INFO L481 AbstractCegarLoop]: Abstraction has 195 states and 232 transitions. [2021-10-11 02:32:26,570 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:32:26,570 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 232 transitions. [2021-10-11 02:32:26,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-10-11 02:32:26,570 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:26,571 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:26,571 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-10-11 02:32:26,571 INFO L429 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-10-11 02:32:26,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:26,572 INFO L82 PathProgramCache]: Analyzing trace with hash 350969545, now seen corresponding path program 1 times [2021-10-11 02:32:26,572 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:32:26,572 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039508263] [2021-10-11 02:32:26,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:32:26,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:26,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:26,614 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039508263] [2021-10-11 02:32:26,615 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:26,615 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:32:26,615 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626406912] [2021-10-11 02:32:26,615 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:32:26,615 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:32:26,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:32:26,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:32:26,616 INFO L87 Difference]: Start difference. First operand 195 states and 232 transitions. Second operand 4 states. [2021-10-11 02:32:26,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:26,749 INFO L93 Difference]: Finished difference Result 176 states and 206 transitions. [2021-10-11 02:32:26,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:32:26,749 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2021-10-11 02:32:26,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:26,751 INFO L225 Difference]: With dead ends: 176 [2021-10-11 02:32:26,751 INFO L226 Difference]: Without dead ends: 176 [2021-10-11 02:32:26,751 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:32:26,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2021-10-11 02:32:26,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 176. [2021-10-11 02:32:26,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176 states. [2021-10-11 02:32:26,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 206 transitions. [2021-10-11 02:32:26,756 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 206 transitions. Word has length 29 [2021-10-11 02:32:26,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:26,756 INFO L481 AbstractCegarLoop]: Abstraction has 176 states and 206 transitions. [2021-10-11 02:32:26,756 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:32:26,756 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 206 transitions. [2021-10-11 02:32:26,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-10-11 02:32:26,757 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:26,757 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:26,757 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-10-11 02:32:26,758 INFO L429 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-10-11 02:32:26,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:26,758 INFO L82 PathProgramCache]: Analyzing trace with hash 1516076744, now seen corresponding path program 1 times [2021-10-11 02:32:26,758 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:32:26,759 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163000509] [2021-10-11 02:32:26,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:32:26,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:26,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:26,837 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163000509] [2021-10-11 02:32:26,837 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:26,838 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-11 02:32:26,838 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816334071] [2021-10-11 02:32:26,838 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 02:32:26,838 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:32:26,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 02:32:26,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:32:26,839 INFO L87 Difference]: Start difference. First operand 176 states and 206 transitions. Second operand 6 states. [2021-10-11 02:32:27,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:27,031 INFO L93 Difference]: Finished difference Result 190 states and 219 transitions. [2021-10-11 02:32:27,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-11 02:32:27,032 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2021-10-11 02:32:27,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:27,033 INFO L225 Difference]: With dead ends: 190 [2021-10-11 02:32:27,033 INFO L226 Difference]: Without dead ends: 118 [2021-10-11 02:32:27,035 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-11 02:32:27,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2021-10-11 02:32:27,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 102. [2021-10-11 02:32:27,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2021-10-11 02:32:27,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 123 transitions. [2021-10-11 02:32:27,038 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 123 transitions. Word has length 30 [2021-10-11 02:32:27,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:27,038 INFO L481 AbstractCegarLoop]: Abstraction has 102 states and 123 transitions. [2021-10-11 02:32:27,038 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 02:32:27,039 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 123 transitions. [2021-10-11 02:32:27,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-11 02:32:27,039 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:27,039 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:27,040 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-10-11 02:32:27,040 INFO L429 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-10-11 02:32:27,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:27,041 INFO L82 PathProgramCache]: Analyzing trace with hash 6108514, now seen corresponding path program 1 times [2021-10-11 02:32:27,041 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:32:27,041 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047101867] [2021-10-11 02:32:27,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:32:27,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:27,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:27,165 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047101867] [2021-10-11 02:32:27,166 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:27,166 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-11 02:32:27,166 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260757885] [2021-10-11 02:32:27,166 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-10-11 02:32:27,166 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:32:27,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-11 02:32:27,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-11 02:32:27,167 INFO L87 Difference]: Start difference. First operand 102 states and 123 transitions. Second operand 7 states. [2021-10-11 02:32:27,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:27,484 INFO L93 Difference]: Finished difference Result 139 states and 168 transitions. [2021-10-11 02:32:27,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-11 02:32:27,484 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2021-10-11 02:32:27,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:27,486 INFO L225 Difference]: With dead ends: 139 [2021-10-11 02:32:27,486 INFO L226 Difference]: Without dead ends: 139 [2021-10-11 02:32:27,489 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2021-10-11 02:32:27,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2021-10-11 02:32:27,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 102. [2021-10-11 02:32:27,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2021-10-11 02:32:27,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 123 transitions. [2021-10-11 02:32:27,495 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 123 transitions. Word has length 33 [2021-10-11 02:32:27,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:27,496 INFO L481 AbstractCegarLoop]: Abstraction has 102 states and 123 transitions. [2021-10-11 02:32:27,496 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-10-11 02:32:27,496 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 123 transitions. [2021-10-11 02:32:27,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-10-11 02:32:27,496 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:27,497 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:27,497 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-10-11 02:32:27,497 INFO L429 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-10-11 02:32:27,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:27,498 INFO L82 PathProgramCache]: Analyzing trace with hash 1451876725, now seen corresponding path program 1 times [2021-10-11 02:32:27,498 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:32:27,499 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678214757] [2021-10-11 02:32:27,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:32:27,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:27,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:27,601 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678214757] [2021-10-11 02:32:27,601 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:27,601 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 02:32:27,602 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850043936] [2021-10-11 02:32:27,602 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:32:27,602 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:32:27,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:32:27,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:32:27,603 INFO L87 Difference]: Start difference. First operand 102 states and 123 transitions. Second operand 5 states. [2021-10-11 02:32:27,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:27,746 INFO L93 Difference]: Finished difference Result 133 states and 165 transitions. [2021-10-11 02:32:27,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:32:27,746 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 36 [2021-10-11 02:32:27,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:27,747 INFO L225 Difference]: With dead ends: 133 [2021-10-11 02:32:27,748 INFO L226 Difference]: Without dead ends: 133 [2021-10-11 02:32:27,748 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:32:27,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2021-10-11 02:32:27,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 88. [2021-10-11 02:32:27,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2021-10-11 02:32:27,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 104 transitions. [2021-10-11 02:32:27,751 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 104 transitions. Word has length 36 [2021-10-11 02:32:27,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:27,752 INFO L481 AbstractCegarLoop]: Abstraction has 88 states and 104 transitions. [2021-10-11 02:32:27,752 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:32:27,752 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 104 transitions. [2021-10-11 02:32:27,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-10-11 02:32:27,752 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:27,753 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:27,753 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-10-11 02:32:27,753 INFO L429 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-10-11 02:32:27,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:27,754 INFO L82 PathProgramCache]: Analyzing trace with hash 895975256, now seen corresponding path program 1 times [2021-10-11 02:32:27,754 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:32:27,754 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749476022] [2021-10-11 02:32:27,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:32:27,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:27,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:27,862 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749476022] [2021-10-11 02:32:27,863 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:27,863 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-10-11 02:32:27,863 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399129839] [2021-10-11 02:32:27,863 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-10-11 02:32:27,863 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:32:27,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-11 02:32:27,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-10-11 02:32:27,864 INFO L87 Difference]: Start difference. First operand 88 states and 104 transitions. Second operand 8 states. [2021-10-11 02:32:28,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:28,225 INFO L93 Difference]: Finished difference Result 136 states and 156 transitions. [2021-10-11 02:32:28,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-11 02:32:28,225 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 37 [2021-10-11 02:32:28,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:28,226 INFO L225 Difference]: With dead ends: 136 [2021-10-11 02:32:28,226 INFO L226 Difference]: Without dead ends: 122 [2021-10-11 02:32:28,227 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2021-10-11 02:32:28,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2021-10-11 02:32:28,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 88. [2021-10-11 02:32:28,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2021-10-11 02:32:28,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 103 transitions. [2021-10-11 02:32:28,229 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 103 transitions. Word has length 37 [2021-10-11 02:32:28,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:28,229 INFO L481 AbstractCegarLoop]: Abstraction has 88 states and 103 transitions. [2021-10-11 02:32:28,230 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-10-11 02:32:28,230 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 103 transitions. [2021-10-11 02:32:28,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-10-11 02:32:28,230 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:28,230 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:28,230 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-10-11 02:32:28,231 INFO L429 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-10-11 02:32:28,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:28,231 INFO L82 PathProgramCache]: Analyzing trace with hash -54315103, now seen corresponding path program 1 times [2021-10-11 02:32:28,231 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:32:28,231 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686684089] [2021-10-11 02:32:28,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:32:28,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:28,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:28,318 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686684089] [2021-10-11 02:32:28,318 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:28,318 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-11 02:32:28,318 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964585400] [2021-10-11 02:32:28,319 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 02:32:28,319 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:32:28,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 02:32:28,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:32:28,319 INFO L87 Difference]: Start difference. First operand 88 states and 103 transitions. Second operand 6 states. [2021-10-11 02:32:28,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:28,411 INFO L93 Difference]: Finished difference Result 106 states and 121 transitions. [2021-10-11 02:32:28,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 02:32:28,412 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 37 [2021-10-11 02:32:28,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:28,413 INFO L225 Difference]: With dead ends: 106 [2021-10-11 02:32:28,413 INFO L226 Difference]: Without dead ends: 90 [2021-10-11 02:32:28,414 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-11 02:32:28,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2021-10-11 02:32:28,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2021-10-11 02:32:28,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2021-10-11 02:32:28,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 104 transitions. [2021-10-11 02:32:28,418 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 104 transitions. Word has length 37 [2021-10-11 02:32:28,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:28,418 INFO L481 AbstractCegarLoop]: Abstraction has 90 states and 104 transitions. [2021-10-11 02:32:28,418 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 02:32:28,419 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 104 transitions. [2021-10-11 02:32:28,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-10-11 02:32:28,419 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:28,419 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:28,419 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-10-11 02:32:28,420 INFO L429 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-10-11 02:32:28,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:28,420 INFO L82 PathProgramCache]: Analyzing trace with hash -1661516033, now seen corresponding path program 1 times [2021-10-11 02:32:28,422 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:32:28,422 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128000655] [2021-10-11 02:32:28,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:32:28,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:28,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:28,479 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128000655] [2021-10-11 02:32:28,479 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:28,479 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-11 02:32:28,480 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252945852] [2021-10-11 02:32:28,480 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 02:32:28,480 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:32:28,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 02:32:28,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:32:28,481 INFO L87 Difference]: Start difference. First operand 90 states and 104 transitions. Second operand 6 states. [2021-10-11 02:32:28,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:28,557 INFO L93 Difference]: Finished difference Result 102 states and 115 transitions. [2021-10-11 02:32:28,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-11 02:32:28,557 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 40 [2021-10-11 02:32:28,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:28,558 INFO L225 Difference]: With dead ends: 102 [2021-10-11 02:32:28,558 INFO L226 Difference]: Without dead ends: 66 [2021-10-11 02:32:28,559 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-10-11 02:32:28,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2021-10-11 02:32:28,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2021-10-11 02:32:28,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2021-10-11 02:32:28,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 76 transitions. [2021-10-11 02:32:28,561 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 76 transitions. Word has length 40 [2021-10-11 02:32:28,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:28,561 INFO L481 AbstractCegarLoop]: Abstraction has 66 states and 76 transitions. [2021-10-11 02:32:28,561 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 02:32:28,562 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 76 transitions. [2021-10-11 02:32:28,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-10-11 02:32:28,562 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:28,562 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:28,562 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-10-11 02:32:28,563 INFO L429 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-10-11 02:32:28,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:28,564 INFO L82 PathProgramCache]: Analyzing trace with hash -912112478, now seen corresponding path program 1 times [2021-10-11 02:32:28,564 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:32:28,564 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106537809] [2021-10-11 02:32:28,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:32:28,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:28,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:28,638 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106537809] [2021-10-11 02:32:28,638 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:28,638 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:32:28,638 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702603173] [2021-10-11 02:32:28,639 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:32:28,639 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:32:28,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:32:28,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:32:28,640 INFO L87 Difference]: Start difference. First operand 66 states and 76 transitions. Second operand 4 states. [2021-10-11 02:32:28,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:28,676 INFO L93 Difference]: Finished difference Result 68 states and 77 transitions. [2021-10-11 02:32:28,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:32:28,677 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 40 [2021-10-11 02:32:28,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:28,678 INFO L225 Difference]: With dead ends: 68 [2021-10-11 02:32:28,678 INFO L226 Difference]: Without dead ends: 66 [2021-10-11 02:32:28,679 INFO L677 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 [2021-10-11 02:32:28,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2021-10-11 02:32:28,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2021-10-11 02:32:28,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2021-10-11 02:32:28,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 75 transitions. [2021-10-11 02:32:28,681 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 75 transitions. Word has length 40 [2021-10-11 02:32:28,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:28,681 INFO L481 AbstractCegarLoop]: Abstraction has 66 states and 75 transitions. [2021-10-11 02:32:28,681 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:32:28,681 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 75 transitions. [2021-10-11 02:32:28,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-10-11 02:32:28,682 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:28,682 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:28,682 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-10-11 02:32:28,683 INFO L429 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-10-11 02:32:28,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:28,683 INFO L82 PathProgramCache]: Analyzing trace with hash 99780200, now seen corresponding path program 1 times [2021-10-11 02:32:28,683 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:32:28,684 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417359323] [2021-10-11 02:32:28,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:32:28,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:28,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:28,772 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417359323] [2021-10-11 02:32:28,772 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:28,772 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-11 02:32:28,772 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184576462] [2021-10-11 02:32:28,773 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 02:32:28,773 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:32:28,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 02:32:28,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:32:28,774 INFO L87 Difference]: Start difference. First operand 66 states and 75 transitions. Second operand 6 states. [2021-10-11 02:32:28,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:28,864 INFO L93 Difference]: Finished difference Result 82 states and 90 transitions. [2021-10-11 02:32:28,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 02:32:28,865 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 49 [2021-10-11 02:32:28,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:28,866 INFO L225 Difference]: With dead ends: 82 [2021-10-11 02:32:28,866 INFO L226 Difference]: Without dead ends: 63 [2021-10-11 02:32:28,866 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-11 02:32:28,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2021-10-11 02:32:28,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2021-10-11 02:32:28,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2021-10-11 02:32:28,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 69 transitions. [2021-10-11 02:32:28,868 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 69 transitions. Word has length 49 [2021-10-11 02:32:28,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:28,869 INFO L481 AbstractCegarLoop]: Abstraction has 63 states and 69 transitions. [2021-10-11 02:32:28,869 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 02:32:28,869 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 69 transitions. [2021-10-11 02:32:28,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-10-11 02:32:28,870 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:28,870 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:28,870 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-10-11 02:32:28,870 INFO L429 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-10-11 02:32:28,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:28,871 INFO L82 PathProgramCache]: Analyzing trace with hash -1098471420, now seen corresponding path program 1 times [2021-10-11 02:32:28,871 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:32:28,871 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41437997] [2021-10-11 02:32:28,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:32:28,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:29,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:29,016 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41437997] [2021-10-11 02:32:29,016 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:29,016 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-10-11 02:32:29,017 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068142646] [2021-10-11 02:32:29,018 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-10-11 02:32:29,018 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:32:29,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-11 02:32:29,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-10-11 02:32:29,019 INFO L87 Difference]: Start difference. First operand 63 states and 69 transitions. Second operand 9 states. [2021-10-11 02:32:29,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:29,379 INFO L93 Difference]: Finished difference Result 87 states and 93 transitions. [2021-10-11 02:32:29,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-11 02:32:29,380 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 51 [2021-10-11 02:32:29,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:29,381 INFO L225 Difference]: With dead ends: 87 [2021-10-11 02:32:29,381 INFO L226 Difference]: Without dead ends: 63 [2021-10-11 02:32:29,381 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2021-10-11 02:32:29,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2021-10-11 02:32:29,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2021-10-11 02:32:29,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2021-10-11 02:32:29,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 68 transitions. [2021-10-11 02:32:29,384 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 68 transitions. Word has length 51 [2021-10-11 02:32:29,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:29,384 INFO L481 AbstractCegarLoop]: Abstraction has 63 states and 68 transitions. [2021-10-11 02:32:29,384 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-10-11 02:32:29,385 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 68 transitions. [2021-10-11 02:32:29,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-11 02:32:29,385 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:29,385 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:29,386 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-10-11 02:32:29,386 INFO L429 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr14ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr12ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr25ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr40ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr10ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr17ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr23ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr27ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr15ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr13ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr11ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr31ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr39ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr26ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr18ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK]=== [2021-10-11 02:32:29,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:29,387 INFO L82 PathProgramCache]: Analyzing trace with hash -1605273236, now seen corresponding path program 1 times [2021-10-11 02:32:29,387 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:32:29,387 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242427677] [2021-10-11 02:32:29,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:32:29,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:29,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:29,518 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242427677] [2021-10-11 02:32:29,519 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:29,519 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-10-11 02:32:29,519 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745358641] [2021-10-11 02:32:29,519 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-10-11 02:32:29,520 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:32:29,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-11 02:32:29,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-10-11 02:32:29,520 INFO L87 Difference]: Start difference. First operand 63 states and 68 transitions. Second operand 9 states. [2021-10-11 02:32:29,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:29,769 INFO L93 Difference]: Finished difference Result 78 states and 85 transitions. [2021-10-11 02:32:29,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-11 02:32:29,769 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 54 [2021-10-11 02:32:29,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:29,770 INFO L225 Difference]: With dead ends: 78 [2021-10-11 02:32:29,770 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 02:32:29,771 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=93, Invalid=213, Unknown=0, NotChecked=0, Total=306 [2021-10-11 02:32:29,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 02:32:29,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 02:32:29,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 02:32:29,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 02:32:29,771 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 54 [2021-10-11 02:32:29,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:29,772 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 02:32:29,772 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-10-11 02:32:29,772 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 02:32:29,772 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 02:32:29,772 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-10-11 02:32:29,780 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:32:29 BoogieIcfgContainer [2021-10-11 02:32:29,780 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:32:29,781 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:32:29,781 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:32:29,781 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:32:29,782 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:32:20" (3/4) ... [2021-10-11 02:32:29,785 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 02:32:29,841 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 231 nodes and edges [2021-10-11 02:32:29,845 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 63 nodes and edges [2021-10-11 02:32:29,849 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-10-11 02:32:29,853 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-10-11 02:32:30,052 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8d5e0467-1964-495b-a087-d989d522ec30/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:32:30,052 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:32:30,054 INFO L168 Benchmark]: Toolchain (without parser) took 13262.98 ms. Allocated memory was 121.6 MB in the beginning and 289.4 MB in the end (delta: 167.8 MB). Free memory was 88.9 MB in the beginning and 134.1 MB in the end (delta: -45.2 MB). Peak memory consumption was 122.6 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:30,054 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 83.9 MB. Free memory was 38.7 MB in the beginning and 38.7 MB in the end (delta: 41.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:32:30,055 INFO L168 Benchmark]: CACSL2BoogieTranslator took 575.49 ms. Allocated memory is still 121.6 MB. Free memory was 88.7 MB in the beginning and 88.7 MB in the end (delta: -83.8 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:30,055 INFO L168 Benchmark]: Boogie Procedure Inliner took 153.72 ms. Allocated memory is still 121.6 MB. Free memory was 88.7 MB in the beginning and 81.2 MB in the end (delta: 7.5 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:30,056 INFO L168 Benchmark]: Boogie Preprocessor took 102.02 ms. Allocated memory is still 121.6 MB. Free memory was 81.2 MB in the beginning and 76.1 MB in the end (delta: 5.1 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:30,056 INFO L168 Benchmark]: RCFGBuilder took 2991.81 ms. Allocated memory was 121.6 MB in the beginning and 165.7 MB in the end (delta: 44.0 MB). Free memory was 76.1 MB in the beginning and 83.6 MB in the end (delta: -7.4 MB). Peak memory consumption was 64.6 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:30,057 INFO L168 Benchmark]: TraceAbstraction took 9158.66 ms. Allocated memory was 165.7 MB in the beginning and 289.4 MB in the end (delta: 123.7 MB). Free memory was 82.6 MB in the beginning and 163.4 MB in the end (delta: -80.9 MB). Peak memory consumption was 42.9 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:30,057 INFO L168 Benchmark]: Witness Printer took 271.50 ms. Allocated memory is still 289.4 MB. Free memory was 163.4 MB in the beginning and 134.1 MB in the end (delta: 29.4 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:30,060 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 83.9 MB. Free memory was 38.7 MB in the beginning and 38.7 MB in the end (delta: 41.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 575.49 ms. Allocated memory is still 121.6 MB. Free memory was 88.7 MB in the beginning and 88.7 MB in the end (delta: -83.8 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 153.72 ms. Allocated memory is still 121.6 MB. Free memory was 88.7 MB in the beginning and 81.2 MB in the end (delta: 7.5 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 102.02 ms. Allocated memory is still 121.6 MB. Free memory was 81.2 MB in the beginning and 76.1 MB in the end (delta: 5.1 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2991.81 ms. Allocated memory was 121.6 MB in the beginning and 165.7 MB in the end (delta: 44.0 MB). Free memory was 76.1 MB in the beginning and 83.6 MB in the end (delta: -7.4 MB). Peak memory consumption was 64.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 9158.66 ms. Allocated memory was 165.7 MB in the beginning and 289.4 MB in the end (delta: 123.7 MB). Free memory was 82.6 MB in the beginning and 163.4 MB in the end (delta: -80.9 MB). Peak memory consumption was 42.9 MB. Max. memory is 16.1 GB. * Witness Printer took 271.50 ms. Allocated memory is still 289.4 MB. Free memory was 163.4 MB in the beginning and 134.1 MB in the end (delta: 29.4 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 65]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 65]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 65]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 65]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 65]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 65]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 65]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 65]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 65]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 65]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 65]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 65]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 65]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 65]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 670]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 65]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 65]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 65]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 65]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 65]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 65]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 65]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 65]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 65]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 65]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 65]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 65]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 65]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 65]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 65]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 65]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 65]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 65]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 65]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 65]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 65]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 65]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 65]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 65]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 65]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 65]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - AllSpecificationsHoldResult: All specifications hold 41 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 256 locations, 41 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 9.0s, OverallIterations: 38, TraceHistogramMax: 1, AutomataDifference: 5.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 7132 SDtfs, 6185 SDslu, 6852 SDs, 0 SdLazy, 2946 SolverSat, 451 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 219 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 148 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=266occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 38 MinimizatonAttempts, 561 StatesRemovedByMinimization, 20 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 954 NumberOfCodeBlocks, 954 NumberOfCodeBlocksAsserted, 38 NumberOfCheckSat, 916 ConstructedInterpolants, 0 QuantifiedInterpolants, 85702 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 38 InterpolantComputations, 38 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...