./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-vcloud-master/worker/run_dir_1923440c-bdd5-4d9b-a950-0358a9b4d580/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_1923440c-bdd5-4d9b-a950-0358a9b4d580/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_1923440c-bdd5-4d9b-a950-0358a9b4d580/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_1923440c-bdd5-4d9b-a950-0358a9b4d580/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ntdrivers-simplified/floppy_simpl3.cil-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_1923440c-bdd5-4d9b-a950-0358a9b4d580/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_1923440c-bdd5-4d9b-a950-0358a9b4d580/bin/utaipan --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 [2020-12-09 20:17:21,599 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 20:17:21,600 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 20:17:21,628 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 20:17:21,629 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 20:17:21,630 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 20:17:21,632 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 20:17:21,634 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 20:17:21,636 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 20:17:21,638 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 20:17:21,639 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 20:17:21,640 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 20:17:21,640 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 20:17:21,642 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 20:17:21,643 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 20:17:21,644 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 20:17:21,645 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 20:17:21,646 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 20:17:21,648 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 20:17:21,650 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 20:17:21,652 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 20:17:21,653 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 20:17:21,654 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 20:17:21,655 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 20:17:21,657 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 20:17:21,658 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 20:17:21,658 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 20:17:21,659 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 20:17:21,659 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 20:17:21,660 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 20:17:21,660 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 20:17:21,661 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 20:17:21,662 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 20:17:21,662 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 20:17:21,663 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 20:17:21,663 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 20:17:21,663 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 20:17:21,664 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 20:17:21,664 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 20:17:21,664 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 20:17:21,665 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 20:17:21,666 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_1923440c-bdd5-4d9b-a950-0358a9b4d580/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2020-12-09 20:17:21,682 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 20:17:21,682 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 20:17:21,682 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 20:17:21,682 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 20:17:21,683 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 20:17:21,683 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 20:17:21,683 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 20:17:21,683 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 20:17:21,683 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 20:17:21,683 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 20:17:21,683 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 20:17:21,683 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 20:17:21,684 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 20:17:21,684 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 20:17:21,684 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 20:17:21,684 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-09 20:17:21,685 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-09 20:17:21,685 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 20:17:21,685 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 20:17:21,685 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-09 20:17:21,685 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 20:17:21,685 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 20:17:21,685 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 20:17:21,685 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-12-09 20:17:21,686 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-12-09 20:17:21,686 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-12-09 20:17:21,686 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 20:17:21,686 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 20:17:21,686 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 20:17:21,686 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 20:17:21,686 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 20:17:21,686 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 20:17:21,687 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 20:17:21,687 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 20:17:21,687 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 20:17:21,687 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 20:17:21,687 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 20:17:21,687 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 20:17:21,687 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 20:17:21,687 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-vcloud-master/worker/run_dir_1923440c-bdd5-4d9b-a950-0358a9b4d580/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_1923440c-bdd5-4d9b-a950-0358a9b4d580/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9caca1067e52a4490439beb955df6129aef4eea8 [2020-12-09 20:17:21,885 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 20:17:21,904 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 20:17:21,906 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 20:17:21,907 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 20:17:21,908 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 20:17:21,908 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_1923440c-bdd5-4d9b-a950-0358a9b4d580/bin/utaipan/../../sv-benchmarks/c/ntdrivers-simplified/floppy_simpl3.cil-2.c [2020-12-09 20:17:21,949 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1923440c-bdd5-4d9b-a950-0358a9b4d580/bin/utaipan/data/6c66bedb3/f518da66c56c4719bcdd86949f62f408/FLAG3409ff084 [2020-12-09 20:17:22,370 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 20:17:22,370 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_1923440c-bdd5-4d9b-a950-0358a9b4d580/sv-benchmarks/c/ntdrivers-simplified/floppy_simpl3.cil-2.c [2020-12-09 20:17:22,379 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1923440c-bdd5-4d9b-a950-0358a9b4d580/bin/utaipan/data/6c66bedb3/f518da66c56c4719bcdd86949f62f408/FLAG3409ff084 [2020-12-09 20:17:22,389 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_1923440c-bdd5-4d9b-a950-0358a9b4d580/bin/utaipan/data/6c66bedb3/f518da66c56c4719bcdd86949f62f408 [2020-12-09 20:17:22,390 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 20:17:22,391 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 20:17:22,392 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 20:17:22,392 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 20:17:22,394 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 20:17:22,395 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 08:17:22" (1/1) ... [2020-12-09 20:17:22,396 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a00be1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:17:22, skipping insertion in model container [2020-12-09 20:17:22,396 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 08:17:22" (1/1) ... [2020-12-09 20:17:22,401 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 20:17:22,435 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 20:17:22,540 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_1923440c-bdd5-4d9b-a950-0358a9b4d580/sv-benchmarks/c/ntdrivers-simplified/floppy_simpl3.cil-2.c[2713,2726] [2020-12-09 20:17:22,629 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 20:17:22,638 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 20:17:22,650 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_1923440c-bdd5-4d9b-a950-0358a9b4d580/sv-benchmarks/c/ntdrivers-simplified/floppy_simpl3.cil-2.c[2713,2726] [2020-12-09 20:17:22,701 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 20:17:22,718 INFO L208 MainTranslator]: Completed translation [2020-12-09 20:17:22,718 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:17:22 WrapperNode [2020-12-09 20:17:22,718 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 20:17:22,719 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 20:17:22,719 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 20:17:22,719 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 20:17:22,724 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:17:22" (1/1) ... [2020-12-09 20:17:22,736 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:17:22" (1/1) ... [2020-12-09 20:17:22,785 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 20:17:22,786 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 20:17:22,786 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 20:17:22,786 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 20:17:22,792 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:17:22" (1/1) ... [2020-12-09 20:17:22,792 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:17:22" (1/1) ... [2020-12-09 20:17:22,798 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:17:22" (1/1) ... [2020-12-09 20:17:22,798 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:17:22" (1/1) ... [2020-12-09 20:17:22,816 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:17:22" (1/1) ... [2020-12-09 20:17:22,826 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:17:22" (1/1) ... [2020-12-09 20:17:22,830 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:17:22" (1/1) ... [2020-12-09 20:17:22,838 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 20:17:22,838 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 20:17:22,839 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 20:17:22,839 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 20:17:22,839 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:17:22" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1923440c-bdd5-4d9b-a950-0358a9b4d580/bin/utaipan/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 [2020-12-09 20:17:22,907 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 20:17:22,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-09 20:17:22,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 20:17:22,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 20:17:23,077 WARN L800 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-09 20:17:23,083 WARN L800 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-09 20:17:23,092 WARN L800 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-09 20:17:23,097 WARN L800 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-09 20:17:23,100 WARN L800 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-09 20:17:23,104 WARN L800 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-09 20:17:23,109 WARN L800 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-09 20:17:23,113 WARN L800 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-09 20:17:23,116 WARN L800 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-09 20:17:23,118 WARN L800 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-09 20:17:23,125 WARN L800 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-09 20:17:23,131 WARN L800 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-09 20:17:23,133 WARN L800 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-09 20:17:23,134 WARN L800 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-09 20:17:23,136 WARN L800 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-09 20:17:23,140 WARN L800 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-09 20:17:23,146 WARN L800 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-09 20:17:23,152 WARN L800 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-09 20:17:23,155 WARN L800 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-09 20:17:23,159 WARN L800 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-09 20:17:23,163 WARN L800 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-09 20:17:23,164 WARN L800 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-09 20:17:23,165 WARN L800 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-09 20:17:23,167 WARN L800 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-12-09 20:17:23,772 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##416: assume !false; [2020-12-09 20:17:23,772 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##415: assume false; [2020-12-09 20:17:23,772 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##445: assume false; [2020-12-09 20:17:23,773 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##290: assume false; [2020-12-09 20:17:23,773 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##291: assume !false; [2020-12-09 20:17:23,773 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##490: assume !false; [2020-12-09 20:17:23,773 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##269: assume false; [2020-12-09 20:17:23,773 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##270: assume !false; [2020-12-09 20:17:23,774 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##446: assume !false; [2020-12-09 20:17:23,774 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##209: assume false; [2020-12-09 20:17:23,774 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##210: assume !false; [2020-12-09 20:17:23,774 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##463: assume false; [2020-12-09 20:17:23,774 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##464: assume !false; [2020-12-09 20:17:23,774 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##470: assume false; [2020-12-09 20:17:23,774 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##232: assume false; [2020-12-09 20:17:23,775 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##471: assume !false; [2020-12-09 20:17:23,775 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##233: assume !false; [2020-12-09 20:17:23,775 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##242: assume !false; [2020-12-09 20:17:23,775 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##241: assume false; [2020-12-09 20:17:23,775 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##489: assume false; [2020-12-09 20:17:23,775 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##246: assume !false; [2020-12-09 20:17:23,775 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##245: assume false; [2020-12-09 20:17:23,776 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2020-12-09 20:17:23,776 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2020-12-09 20:17:23,776 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##86: assume !false; [2020-12-09 20:17:23,776 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume false; [2020-12-09 20:17:23,776 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##175: assume !false; [2020-12-09 20:17:23,777 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##174: assume false; [2020-12-09 20:17:23,777 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##180: assume false; [2020-12-09 20:17:23,777 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##181: assume !false; [2020-12-09 20:17:23,777 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##56: assume !false; [2020-12-09 20:17:23,777 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##55: assume false; [2020-12-09 20:17:23,777 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##137: assume false; [2020-12-09 20:17:23,777 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##35: assume !false; [2020-12-09 20:17:23,777 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##34: assume false; [2020-12-09 20:17:23,778 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##138: assume !false; [2020-12-09 20:17:23,778 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##393: assume false; [2020-12-09 20:17:23,778 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume false; [2020-12-09 20:17:23,778 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##394: assume !false; [2020-12-09 20:17:23,778 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume !false; [2020-12-09 20:17:23,778 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##164: assume !false; [2020-12-09 20:17:23,778 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##163: assume false; [2020-12-09 20:17:23,778 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##329: assume false; [2020-12-09 20:17:23,779 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##330: assume !false; [2020-12-09 20:17:23,779 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##108: assume !false; [2020-12-09 20:17:23,779 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##107: assume false; [2020-12-09 20:17:23,779 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##364: assume !false; [2020-12-09 20:17:23,779 INFO L752 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##363: assume false; [2020-12-09 20:17:24,535 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 20:17:24,535 INFO L299 CfgBuilder]: Removed 205 assume(true) statements. [2020-12-09 20:17:24,538 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 08:17:24 BoogieIcfgContainer [2020-12-09 20:17:24,538 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 20:17:24,540 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 20:17:24,540 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 20:17:24,543 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 20:17:24,543 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 08:17:22" (1/3) ... [2020-12-09 20:17:24,544 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c1642af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 08:17:24, skipping insertion in model container [2020-12-09 20:17:24,544 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:17:22" (2/3) ... [2020-12-09 20:17:24,544 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c1642af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 08:17:24, skipping insertion in model container [2020-12-09 20:17:24,544 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 08:17:24" (3/3) ... [2020-12-09 20:17:24,546 INFO L111 eAbstractionObserver]: Analyzing ICFG floppy_simpl3.cil-2.c [2020-12-09 20:17:24,556 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 20:17:24,559 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 41 error locations. [2020-12-09 20:17:24,566 INFO L253 AbstractCegarLoop]: Starting to check reachability of 41 error locations. [2020-12-09 20:17:24,580 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 20:17:24,581 INFO L378 AbstractCegarLoop]: Hoare is false [2020-12-09 20:17:24,581 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 20:17:24,581 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 20:17:24,581 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 20:17:24,581 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 20:17:24,581 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 20:17:24,581 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 20:17:24,596 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states. [2020-12-09 20:17:24,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-09 20:17:24,601 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:17:24,601 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-12-09 20:17:24,602 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]=== [2020-12-09 20:17:24,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:17:24,606 INFO L82 PathProgramCache]: Analyzing trace with hash 49006345, now seen corresponding path program 1 times [2020-12-09 20:17:24,613 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 20:17:24,613 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981107035] [2020-12-09 20:17:24,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 20:17:24,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:17:24,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:17:24,736 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981107035] [2020-12-09 20:17:24,736 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 20:17:24,736 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 20:17:24,737 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906759676] [2020-12-09 20:17:24,740 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 20:17:24,740 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 20:17:24,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 20:17:24,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 20:17:24,752 INFO L87 Difference]: Start difference. First operand 256 states. Second operand 3 states. [2020-12-09 20:17:24,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:17:24,794 INFO L93 Difference]: Finished difference Result 256 states and 338 transitions. [2020-12-09 20:17:24,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 20:17:24,795 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-12-09 20:17:24,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:17:24,804 INFO L225 Difference]: With dead ends: 256 [2020-12-09 20:17:24,804 INFO L226 Difference]: Without dead ends: 255 [2020-12-09 20:17:24,805 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 [2020-12-09 20:17:24,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2020-12-09 20:17:24,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 255. [2020-12-09 20:17:24,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 255 states. [2020-12-09 20:17:24,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 337 transitions. [2020-12-09 20:17:24,843 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 337 transitions. Word has length 4 [2020-12-09 20:17:24,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:17:24,843 INFO L481 AbstractCegarLoop]: Abstraction has 255 states and 337 transitions. [2020-12-09 20:17:24,843 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 20:17:24,843 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 337 transitions. [2020-12-09 20:17:24,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-09 20:17:24,844 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:17:24,844 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-12-09 20:17:24,844 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-09 20:17:24,844 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]=== [2020-12-09 20:17:24,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:17:24,845 INFO L82 PathProgramCache]: Analyzing trace with hash 1519202053, now seen corresponding path program 1 times [2020-12-09 20:17:24,845 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 20:17:24,845 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7921937] [2020-12-09 20:17:24,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 20:17:24,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:17:24,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:17:24,879 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7921937] [2020-12-09 20:17:24,879 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 20:17:24,879 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-12-09 20:17:24,879 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044921376] [2020-12-09 20:17:24,880 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 20:17:24,881 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 20:17:24,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 20:17:24,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 20:17:24,882 INFO L87 Difference]: Start difference. First operand 255 states and 337 transitions. Second operand 3 states. [2020-12-09 20:17:24,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:17:24,893 INFO L93 Difference]: Finished difference Result 254 states and 336 transitions. [2020-12-09 20:17:24,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 20:17:24,894 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-12-09 20:17:24,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:17:24,896 INFO L225 Difference]: With dead ends: 254 [2020-12-09 20:17:24,896 INFO L226 Difference]: Without dead ends: 252 [2020-12-09 20:17:24,897 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 [2020-12-09 20:17:24,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2020-12-09 20:17:24,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 252. [2020-12-09 20:17:24,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 252 states. [2020-12-09 20:17:24,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 327 transitions. [2020-12-09 20:17:24,912 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 327 transitions. Word has length 5 [2020-12-09 20:17:24,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:17:24,913 INFO L481 AbstractCegarLoop]: Abstraction has 252 states and 327 transitions. [2020-12-09 20:17:24,913 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 20:17:24,913 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 327 transitions. [2020-12-09 20:17:24,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-09 20:17:24,913 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:17:24,914 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-09 20:17:24,914 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-09 20:17:24,914 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]=== [2020-12-09 20:17:24,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:17:24,915 INFO L82 PathProgramCache]: Analyzing trace with hash -332329407, now seen corresponding path program 1 times [2020-12-09 20:17:24,915 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 20:17:24,915 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951938057] [2020-12-09 20:17:24,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 20:17:24,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:17:24,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:17:24,980 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951938057] [2020-12-09 20:17:24,980 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 20:17:24,980 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 20:17:24,980 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395180991] [2020-12-09 20:17:24,980 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 20:17:24,981 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 20:17:24,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 20:17:24,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 20:17:24,982 INFO L87 Difference]: Start difference. First operand 252 states and 327 transitions. Second operand 3 states. [2020-12-09 20:17:25,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:17:25,107 INFO L93 Difference]: Finished difference Result 256 states and 339 transitions. [2020-12-09 20:17:25,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 20:17:25,108 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-12-09 20:17:25,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:17:25,110 INFO L225 Difference]: With dead ends: 256 [2020-12-09 20:17:25,110 INFO L226 Difference]: Without dead ends: 256 [2020-12-09 20:17:25,110 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 [2020-12-09 20:17:25,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2020-12-09 20:17:25,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 256. [2020-12-09 20:17:25,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 256 states. [2020-12-09 20:17:25,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 339 transitions. [2020-12-09 20:17:25,119 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 339 transitions. Word has length 7 [2020-12-09 20:17:25,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:17:25,119 INFO L481 AbstractCegarLoop]: Abstraction has 256 states and 339 transitions. [2020-12-09 20:17:25,119 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 20:17:25,120 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 339 transitions. [2020-12-09 20:17:25,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-09 20:17:25,120 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:17:25,120 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 20:17:25,120 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-09 20:17:25,120 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]=== [2020-12-09 20:17:25,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:17:25,121 INFO L82 PathProgramCache]: Analyzing trace with hash -1480777066, now seen corresponding path program 1 times [2020-12-09 20:17:25,121 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 20:17:25,121 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171572271] [2020-12-09 20:17:25,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 20:17:25,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:17:25,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:17:25,158 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171572271] [2020-12-09 20:17:25,158 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 20:17:25,159 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 20:17:25,159 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921318180] [2020-12-09 20:17:25,159 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 20:17:25,159 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 20:17:25,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 20:17:25,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 20:17:25,160 INFO L87 Difference]: Start difference. First operand 256 states and 339 transitions. Second operand 3 states. [2020-12-09 20:17:25,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:17:25,190 INFO L93 Difference]: Finished difference Result 330 states and 430 transitions. [2020-12-09 20:17:25,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 20:17:25,191 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-12-09 20:17:25,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:17:25,192 INFO L225 Difference]: With dead ends: 330 [2020-12-09 20:17:25,192 INFO L226 Difference]: Without dead ends: 330 [2020-12-09 20:17:25,193 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 [2020-12-09 20:17:25,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2020-12-09 20:17:25,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 244. [2020-12-09 20:17:25,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244 states. [2020-12-09 20:17:25,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 322 transitions. [2020-12-09 20:17:25,199 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 322 transitions. Word has length 9 [2020-12-09 20:17:25,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:17:25,199 INFO L481 AbstractCegarLoop]: Abstraction has 244 states and 322 transitions. [2020-12-09 20:17:25,199 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 20:17:25,199 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 322 transitions. [2020-12-09 20:17:25,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-09 20:17:25,200 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:17:25,200 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 20:17:25,200 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-09 20:17:25,200 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]=== [2020-12-09 20:17:25,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:17:25,201 INFO L82 PathProgramCache]: Analyzing trace with hash -1762256508, now seen corresponding path program 1 times [2020-12-09 20:17:25,201 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 20:17:25,201 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263955948] [2020-12-09 20:17:25,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 20:17:25,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:17:25,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:17:25,230 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263955948] [2020-12-09 20:17:25,231 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 20:17:25,231 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 20:17:25,231 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306682247] [2020-12-09 20:17:25,231 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 20:17:25,231 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 20:17:25,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 20:17:25,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 20:17:25,232 INFO L87 Difference]: Start difference. First operand 244 states and 322 transitions. Second operand 3 states. [2020-12-09 20:17:25,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:17:25,245 INFO L93 Difference]: Finished difference Result 281 states and 366 transitions. [2020-12-09 20:17:25,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 20:17:25,246 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-12-09 20:17:25,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:17:25,247 INFO L225 Difference]: With dead ends: 281 [2020-12-09 20:17:25,247 INFO L226 Difference]: Without dead ends: 281 [2020-12-09 20:17:25,247 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 [2020-12-09 20:17:25,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2020-12-09 20:17:25,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 262. [2020-12-09 20:17:25,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2020-12-09 20:17:25,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 348 transitions. [2020-12-09 20:17:25,252 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 348 transitions. Word has length 13 [2020-12-09 20:17:25,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:17:25,252 INFO L481 AbstractCegarLoop]: Abstraction has 262 states and 348 transitions. [2020-12-09 20:17:25,252 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 20:17:25,253 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 348 transitions. [2020-12-09 20:17:25,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-09 20:17:25,253 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:17:25,254 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 20:17:25,254 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-09 20:17:25,254 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]=== [2020-12-09 20:17:25,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:17:25,254 INFO L82 PathProgramCache]: Analyzing trace with hash 933871802, now seen corresponding path program 1 times [2020-12-09 20:17:25,254 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 20:17:25,255 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660903814] [2020-12-09 20:17:25,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 20:17:25,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:17:25,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:17:25,292 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660903814] [2020-12-09 20:17:25,292 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 20:17:25,293 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-09 20:17:25,293 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905936827] [2020-12-09 20:17:25,293 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 20:17:25,293 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 20:17:25,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 20:17:25,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-09 20:17:25,294 INFO L87 Difference]: Start difference. First operand 262 states and 348 transitions. Second operand 4 states. [2020-12-09 20:17:25,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:17:25,325 INFO L93 Difference]: Finished difference Result 289 states and 371 transitions. [2020-12-09 20:17:25,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-09 20:17:25,326 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-12-09 20:17:25,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:17:25,327 INFO L225 Difference]: With dead ends: 289 [2020-12-09 20:17:25,327 INFO L226 Difference]: Without dead ends: 289 [2020-12-09 20:17:25,328 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 [2020-12-09 20:17:25,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2020-12-09 20:17:25,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 249. [2020-12-09 20:17:25,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2020-12-09 20:17:25,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 327 transitions. [2020-12-09 20:17:25,332 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 327 transitions. Word has length 16 [2020-12-09 20:17:25,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:17:25,333 INFO L481 AbstractCegarLoop]: Abstraction has 249 states and 327 transitions. [2020-12-09 20:17:25,333 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 20:17:25,333 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 327 transitions. [2020-12-09 20:17:25,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-09 20:17:25,334 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:17:25,334 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 20:17:25,334 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-09 20:17:25,334 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]=== [2020-12-09 20:17:25,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:17:25,335 INFO L82 PathProgramCache]: Analyzing trace with hash 179002156, now seen corresponding path program 1 times [2020-12-09 20:17:25,335 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 20:17:25,335 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699023355] [2020-12-09 20:17:25,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 20:17:25,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:17:25,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:17:25,359 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699023355] [2020-12-09 20:17:25,359 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 20:17:25,359 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 20:17:25,359 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711352816] [2020-12-09 20:17:25,359 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 20:17:25,359 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 20:17:25,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 20:17:25,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 20:17:25,360 INFO L87 Difference]: Start difference. First operand 249 states and 327 transitions. Second operand 3 states. [2020-12-09 20:17:25,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:17:25,469 INFO L93 Difference]: Finished difference Result 266 states and 348 transitions. [2020-12-09 20:17:25,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 20:17:25,470 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2020-12-09 20:17:25,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:17:25,471 INFO L225 Difference]: With dead ends: 266 [2020-12-09 20:17:25,471 INFO L226 Difference]: Without dead ends: 266 [2020-12-09 20:17:25,472 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 [2020-12-09 20:17:25,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-12-09 20:17:25,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2020-12-09 20:17:25,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-12-09 20:17:25,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 348 transitions. [2020-12-09 20:17:25,479 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 348 transitions. Word has length 16 [2020-12-09 20:17:25,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:17:25,479 INFO L481 AbstractCegarLoop]: Abstraction has 266 states and 348 transitions. [2020-12-09 20:17:25,479 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 20:17:25,479 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 348 transitions. [2020-12-09 20:17:25,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-09 20:17:25,481 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:17:25,481 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 20:17:25,481 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-09 20:17:25,481 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]=== [2020-12-09 20:17:25,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:17:25,482 INFO L82 PathProgramCache]: Analyzing trace with hash 1804305271, now seen corresponding path program 1 times [2020-12-09 20:17:25,482 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 20:17:25,482 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676154203] [2020-12-09 20:17:25,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 20:17:25,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:17:25,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:17:25,514 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676154203] [2020-12-09 20:17:25,514 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 20:17:25,514 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 20:17:25,514 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037984539] [2020-12-09 20:17:25,515 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 20:17:25,515 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 20:17:25,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 20:17:25,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 20:17:25,517 INFO L87 Difference]: Start difference. First operand 266 states and 348 transitions. Second operand 3 states. [2020-12-09 20:17:25,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:17:25,606 INFO L93 Difference]: Finished difference Result 254 states and 336 transitions. [2020-12-09 20:17:25,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 20:17:25,607 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-12-09 20:17:25,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:17:25,608 INFO L225 Difference]: With dead ends: 254 [2020-12-09 20:17:25,608 INFO L226 Difference]: Without dead ends: 254 [2020-12-09 20:17:25,608 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 [2020-12-09 20:17:25,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2020-12-09 20:17:25,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 254. [2020-12-09 20:17:25,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2020-12-09 20:17:25,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 336 transitions. [2020-12-09 20:17:25,613 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 336 transitions. Word has length 17 [2020-12-09 20:17:25,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:17:25,613 INFO L481 AbstractCegarLoop]: Abstraction has 254 states and 336 transitions. [2020-12-09 20:17:25,613 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 20:17:25,613 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 336 transitions. [2020-12-09 20:17:25,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-09 20:17:25,614 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:17:25,614 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 20:17:25,614 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-09 20:17:25,614 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]=== [2020-12-09 20:17:25,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:17:25,614 INFO L82 PathProgramCache]: Analyzing trace with hash -232870678, now seen corresponding path program 1 times [2020-12-09 20:17:25,615 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 20:17:25,615 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896136699] [2020-12-09 20:17:25,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 20:17:25,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:17:25,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:17:25,653 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896136699] [2020-12-09 20:17:25,654 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 20:17:25,654 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 20:17:25,654 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046946317] [2020-12-09 20:17:25,654 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 20:17:25,655 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 20:17:25,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 20:17:25,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 20:17:25,655 INFO L87 Difference]: Start difference. First operand 254 states and 336 transitions. Second operand 3 states. [2020-12-09 20:17:25,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:17:25,753 INFO L93 Difference]: Finished difference Result 251 states and 332 transitions. [2020-12-09 20:17:25,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 20:17:25,754 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-12-09 20:17:25,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:17:25,755 INFO L225 Difference]: With dead ends: 251 [2020-12-09 20:17:25,755 INFO L226 Difference]: Without dead ends: 251 [2020-12-09 20:17:25,755 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 [2020-12-09 20:17:25,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2020-12-09 20:17:25,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 251. [2020-12-09 20:17:25,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 251 states. [2020-12-09 20:17:25,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 332 transitions. [2020-12-09 20:17:25,760 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 332 transitions. Word has length 17 [2020-12-09 20:17:25,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:17:25,760 INFO L481 AbstractCegarLoop]: Abstraction has 251 states and 332 transitions. [2020-12-09 20:17:25,760 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 20:17:25,760 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 332 transitions. [2020-12-09 20:17:25,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-09 20:17:25,761 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:17:25,761 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 20:17:25,761 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-09 20:17:25,761 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]=== [2020-12-09 20:17:25,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:17:25,762 INFO L82 PathProgramCache]: Analyzing trace with hash 1271555609, now seen corresponding path program 1 times [2020-12-09 20:17:25,762 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 20:17:25,762 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437210377] [2020-12-09 20:17:25,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 20:17:25,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:17:25,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:17:25,792 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437210377] [2020-12-09 20:17:25,793 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 20:17:25,793 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-09 20:17:25,793 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554322912] [2020-12-09 20:17:25,793 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 20:17:25,793 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 20:17:25,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 20:17:25,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-09 20:17:25,794 INFO L87 Difference]: Start difference. First operand 251 states and 332 transitions. Second operand 4 states. [2020-12-09 20:17:25,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:17:25,812 INFO L93 Difference]: Finished difference Result 262 states and 344 transitions. [2020-12-09 20:17:25,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 20:17:25,813 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-12-09 20:17:25,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:17:25,814 INFO L225 Difference]: With dead ends: 262 [2020-12-09 20:17:25,814 INFO L226 Difference]: Without dead ends: 249 [2020-12-09 20:17:25,814 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 [2020-12-09 20:17:25,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2020-12-09 20:17:25,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 249. [2020-12-09 20:17:25,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2020-12-09 20:17:25,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 329 transitions. [2020-12-09 20:17:25,818 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 329 transitions. Word has length 17 [2020-12-09 20:17:25,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:17:25,819 INFO L481 AbstractCegarLoop]: Abstraction has 249 states and 329 transitions. [2020-12-09 20:17:25,819 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 20:17:25,819 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 329 transitions. [2020-12-09 20:17:25,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-09 20:17:25,819 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:17:25,819 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 20:17:25,819 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-09 20:17:25,820 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]=== [2020-12-09 20:17:25,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:17:25,820 INFO L82 PathProgramCache]: Analyzing trace with hash 203415821, now seen corresponding path program 1 times [2020-12-09 20:17:25,820 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 20:17:25,820 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348779396] [2020-12-09 20:17:25,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 20:17:25,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:17:25,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:17:25,841 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348779396] [2020-12-09 20:17:25,842 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 20:17:25,842 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 20:17:25,842 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216921066] [2020-12-09 20:17:25,842 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 20:17:25,842 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 20:17:25,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 20:17:25,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 20:17:25,843 INFO L87 Difference]: Start difference. First operand 249 states and 329 transitions. Second operand 3 states. [2020-12-09 20:17:25,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:17:25,860 INFO L93 Difference]: Finished difference Result 247 states and 317 transitions. [2020-12-09 20:17:25,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 20:17:25,860 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2020-12-09 20:17:25,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:17:25,861 INFO L225 Difference]: With dead ends: 247 [2020-12-09 20:17:25,862 INFO L226 Difference]: Without dead ends: 247 [2020-12-09 20:17:25,862 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 [2020-12-09 20:17:25,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2020-12-09 20:17:25,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 233. [2020-12-09 20:17:25,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2020-12-09 20:17:25,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 302 transitions. [2020-12-09 20:17:25,866 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 302 transitions. Word has length 18 [2020-12-09 20:17:25,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:17:25,866 INFO L481 AbstractCegarLoop]: Abstraction has 233 states and 302 transitions. [2020-12-09 20:17:25,866 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 20:17:25,866 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 302 transitions. [2020-12-09 20:17:25,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-09 20:17:25,866 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:17:25,866 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 20:17:25,866 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-09 20:17:25,867 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]=== [2020-12-09 20:17:25,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:17:25,867 INFO L82 PathProgramCache]: Analyzing trace with hash -1474307115, now seen corresponding path program 1 times [2020-12-09 20:17:25,867 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 20:17:25,867 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126704054] [2020-12-09 20:17:25,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 20:17:25,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:17:25,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:17:25,886 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126704054] [2020-12-09 20:17:25,886 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 20:17:25,886 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 20:17:25,886 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126727651] [2020-12-09 20:17:25,887 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 20:17:25,887 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 20:17:25,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 20:17:25,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 20:17:25,887 INFO L87 Difference]: Start difference. First operand 233 states and 302 transitions. Second operand 3 states. [2020-12-09 20:17:25,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:17:25,972 INFO L93 Difference]: Finished difference Result 296 states and 381 transitions. [2020-12-09 20:17:25,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 20:17:25,972 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-12-09 20:17:25,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:17:25,973 INFO L225 Difference]: With dead ends: 296 [2020-12-09 20:17:25,974 INFO L226 Difference]: Without dead ends: 296 [2020-12-09 20:17:25,974 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 [2020-12-09 20:17:25,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2020-12-09 20:17:25,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 241. [2020-12-09 20:17:25,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states. [2020-12-09 20:17:25,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 314 transitions. [2020-12-09 20:17:25,978 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 314 transitions. Word has length 19 [2020-12-09 20:17:25,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:17:25,978 INFO L481 AbstractCegarLoop]: Abstraction has 241 states and 314 transitions. [2020-12-09 20:17:25,978 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 20:17:25,978 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 314 transitions. [2020-12-09 20:17:25,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-12-09 20:17:25,979 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:17:25,979 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] [2020-12-09 20:17:25,979 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-09 20:17:25,979 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]=== [2020-12-09 20:17:25,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:17:25,979 INFO L82 PathProgramCache]: Analyzing trace with hash 1533461189, now seen corresponding path program 1 times [2020-12-09 20:17:25,979 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 20:17:25,980 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352492951] [2020-12-09 20:17:25,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 20:17:25,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:17:26,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:17:26,010 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352492951] [2020-12-09 20:17:26,011 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 20:17:26,011 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 20:17:26,011 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217943898] [2020-12-09 20:17:26,011 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 20:17:26,011 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 20:17:26,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 20:17:26,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-09 20:17:26,012 INFO L87 Difference]: Start difference. First operand 241 states and 314 transitions. Second operand 4 states. [2020-12-09 20:17:26,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:17:26,130 INFO L93 Difference]: Finished difference Result 236 states and 306 transitions. [2020-12-09 20:17:26,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 20:17:26,130 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-12-09 20:17:26,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:17:26,132 INFO L225 Difference]: With dead ends: 236 [2020-12-09 20:17:26,132 INFO L226 Difference]: Without dead ends: 236 [2020-12-09 20:17:26,132 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 [2020-12-09 20:17:26,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2020-12-09 20:17:26,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 236. [2020-12-09 20:17:26,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236 states. [2020-12-09 20:17:26,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 306 transitions. [2020-12-09 20:17:26,136 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 306 transitions. Word has length 20 [2020-12-09 20:17:26,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:17:26,136 INFO L481 AbstractCegarLoop]: Abstraction has 236 states and 306 transitions. [2020-12-09 20:17:26,136 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 20:17:26,136 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 306 transitions. [2020-12-09 20:17:26,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-12-09 20:17:26,137 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:17:26,137 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] [2020-12-09 20:17:26,137 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-09 20:17:26,137 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]=== [2020-12-09 20:17:26,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:17:26,137 INFO L82 PathProgramCache]: Analyzing trace with hash -464356042, now seen corresponding path program 1 times [2020-12-09 20:17:26,137 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 20:17:26,138 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848594924] [2020-12-09 20:17:26,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 20:17:26,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:17:26,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:17:26,160 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848594924] [2020-12-09 20:17:26,161 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 20:17:26,161 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 20:17:26,161 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066238513] [2020-12-09 20:17:26,161 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 20:17:26,161 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 20:17:26,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 20:17:26,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 20:17:26,162 INFO L87 Difference]: Start difference. First operand 236 states and 306 transitions. Second operand 3 states. [2020-12-09 20:17:26,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:17:26,174 INFO L93 Difference]: Finished difference Result 259 states and 330 transitions. [2020-12-09 20:17:26,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 20:17:26,175 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2020-12-09 20:17:26,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:17:26,176 INFO L225 Difference]: With dead ends: 259 [2020-12-09 20:17:26,176 INFO L226 Difference]: Without dead ends: 259 [2020-12-09 20:17:26,176 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 [2020-12-09 20:17:26,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2020-12-09 20:17:26,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 224. [2020-12-09 20:17:26,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2020-12-09 20:17:26,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 288 transitions. [2020-12-09 20:17:26,180 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 288 transitions. Word has length 20 [2020-12-09 20:17:26,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:17:26,180 INFO L481 AbstractCegarLoop]: Abstraction has 224 states and 288 transitions. [2020-12-09 20:17:26,180 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 20:17:26,180 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 288 transitions. [2020-12-09 20:17:26,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-09 20:17:26,181 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:17:26,181 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] [2020-12-09 20:17:26,181 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-09 20:17:26,181 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]=== [2020-12-09 20:17:26,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:17:26,181 INFO L82 PathProgramCache]: Analyzing trace with hash 347708576, now seen corresponding path program 1 times [2020-12-09 20:17:26,182 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 20:17:26,182 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174230600] [2020-12-09 20:17:26,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 20:17:26,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:17:26,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:17:26,264 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174230600] [2020-12-09 20:17:26,264 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 20:17:26,265 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 20:17:26,265 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066592911] [2020-12-09 20:17:26,265 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 20:17:26,265 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 20:17:26,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 20:17:26,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 20:17:26,266 INFO L87 Difference]: Start difference. First operand 224 states and 288 transitions. Second operand 3 states. [2020-12-09 20:17:26,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:17:26,292 INFO L93 Difference]: Finished difference Result 226 states and 285 transitions. [2020-12-09 20:17:26,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 20:17:26,292 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2020-12-09 20:17:26,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:17:26,294 INFO L225 Difference]: With dead ends: 226 [2020-12-09 20:17:26,294 INFO L226 Difference]: Without dead ends: 226 [2020-12-09 20:17:26,294 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 [2020-12-09 20:17:26,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-12-09 20:17:26,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 212. [2020-12-09 20:17:26,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2020-12-09 20:17:26,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 270 transitions. [2020-12-09 20:17:26,299 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 270 transitions. Word has length 21 [2020-12-09 20:17:26,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:17:26,299 INFO L481 AbstractCegarLoop]: Abstraction has 212 states and 270 transitions. [2020-12-09 20:17:26,299 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 20:17:26,299 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 270 transitions. [2020-12-09 20:17:26,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-09 20:17:26,300 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:17:26,300 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] [2020-12-09 20:17:26,300 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-09 20:17:26,301 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]=== [2020-12-09 20:17:26,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:17:26,301 INFO L82 PathProgramCache]: Analyzing trace with hash -325807387, now seen corresponding path program 1 times [2020-12-09 20:17:26,301 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 20:17:26,301 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450038810] [2020-12-09 20:17:26,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 20:17:26,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:17:26,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:17:26,345 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450038810] [2020-12-09 20:17:26,346 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 20:17:26,346 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 20:17:26,346 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204708729] [2020-12-09 20:17:26,346 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 20:17:26,346 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 20:17:26,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 20:17:26,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-09 20:17:26,347 INFO L87 Difference]: Start difference. First operand 212 states and 270 transitions. Second operand 4 states. [2020-12-09 20:17:26,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:17:26,470 INFO L93 Difference]: Finished difference Result 212 states and 267 transitions. [2020-12-09 20:17:26,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 20:17:26,470 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2020-12-09 20:17:26,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:17:26,471 INFO L225 Difference]: With dead ends: 212 [2020-12-09 20:17:26,471 INFO L226 Difference]: Without dead ends: 212 [2020-12-09 20:17:26,472 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 [2020-12-09 20:17:26,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2020-12-09 20:17:26,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 212. [2020-12-09 20:17:26,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2020-12-09 20:17:26,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 267 transitions. [2020-12-09 20:17:26,475 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 267 transitions. Word has length 22 [2020-12-09 20:17:26,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:17:26,475 INFO L481 AbstractCegarLoop]: Abstraction has 212 states and 267 transitions. [2020-12-09 20:17:26,475 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 20:17:26,475 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 267 transitions. [2020-12-09 20:17:26,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-09 20:17:26,476 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:17:26,476 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] [2020-12-09 20:17:26,476 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-12-09 20:17:26,476 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]=== [2020-12-09 20:17:26,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:17:26,477 INFO L82 PathProgramCache]: Analyzing trace with hash 93394197, now seen corresponding path program 1 times [2020-12-09 20:17:26,477 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 20:17:26,477 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295530281] [2020-12-09 20:17:26,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 20:17:26,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:17:26,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:17:26,527 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295530281] [2020-12-09 20:17:26,527 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 20:17:26,527 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-09 20:17:26,527 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645492414] [2020-12-09 20:17:26,528 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-09 20:17:26,528 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 20:17:26,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-09 20:17:26,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 20:17:26,528 INFO L87 Difference]: Start difference. First operand 212 states and 267 transitions. Second operand 5 states. [2020-12-09 20:17:26,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:17:26,740 INFO L93 Difference]: Finished difference Result 274 states and 343 transitions. [2020-12-09 20:17:26,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-09 20:17:26,740 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2020-12-09 20:17:26,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:17:26,742 INFO L225 Difference]: With dead ends: 274 [2020-12-09 20:17:26,742 INFO L226 Difference]: Without dead ends: 274 [2020-12-09 20:17:26,742 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 [2020-12-09 20:17:26,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2020-12-09 20:17:26,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 212. [2020-12-09 20:17:26,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2020-12-09 20:17:26,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 267 transitions. [2020-12-09 20:17:26,747 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 267 transitions. Word has length 23 [2020-12-09 20:17:26,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:17:26,748 INFO L481 AbstractCegarLoop]: Abstraction has 212 states and 267 transitions. [2020-12-09 20:17:26,748 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-09 20:17:26,748 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 267 transitions. [2020-12-09 20:17:26,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-12-09 20:17:26,748 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:17:26,749 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] [2020-12-09 20:17:26,749 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-12-09 20:17:26,749 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]=== [2020-12-09 20:17:26,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:17:26,749 INFO L82 PathProgramCache]: Analyzing trace with hash -1423251781, now seen corresponding path program 1 times [2020-12-09 20:17:26,750 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 20:17:26,750 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778940425] [2020-12-09 20:17:26,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 20:17:26,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:17:26,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:17:26,781 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778940425] [2020-12-09 20:17:26,781 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 20:17:26,781 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-09 20:17:26,781 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688968049] [2020-12-09 20:17:26,781 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-09 20:17:26,782 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 20:17:26,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-09 20:17:26,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-09 20:17:26,782 INFO L87 Difference]: Start difference. First operand 212 states and 267 transitions. Second operand 5 states. [2020-12-09 20:17:26,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:17:26,819 INFO L93 Difference]: Finished difference Result 224 states and 280 transitions. [2020-12-09 20:17:26,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-09 20:17:26,819 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2020-12-09 20:17:26,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:17:26,820 INFO L225 Difference]: With dead ends: 224 [2020-12-09 20:17:26,820 INFO L226 Difference]: Without dead ends: 202 [2020-12-09 20:17:26,821 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 [2020-12-09 20:17:26,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2020-12-09 20:17:26,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2020-12-09 20:17:26,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2020-12-09 20:17:26,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 251 transitions. [2020-12-09 20:17:26,824 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 251 transitions. Word has length 24 [2020-12-09 20:17:26,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:17:26,824 INFO L481 AbstractCegarLoop]: Abstraction has 202 states and 251 transitions. [2020-12-09 20:17:26,824 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-09 20:17:26,824 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 251 transitions. [2020-12-09 20:17:26,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-12-09 20:17:26,825 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:17:26,825 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] [2020-12-09 20:17:26,825 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-12-09 20:17:26,825 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]=== [2020-12-09 20:17:26,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:17:26,826 INFO L82 PathProgramCache]: Analyzing trace with hash 2113500424, now seen corresponding path program 1 times [2020-12-09 20:17:26,826 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 20:17:26,826 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877935856] [2020-12-09 20:17:26,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 20:17:26,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:17:26,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:17:26,843 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877935856] [2020-12-09 20:17:26,843 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 20:17:26,844 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 20:17:26,844 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403034692] [2020-12-09 20:17:26,844 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 20:17:26,844 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 20:17:26,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 20:17:26,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 20:17:26,845 INFO L87 Difference]: Start difference. First operand 202 states and 251 transitions. Second operand 3 states. [2020-12-09 20:17:26,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:17:26,918 INFO L93 Difference]: Finished difference Result 232 states and 283 transitions. [2020-12-09 20:17:26,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 20:17:26,918 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-12-09 20:17:26,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:17:26,919 INFO L225 Difference]: With dead ends: 232 [2020-12-09 20:17:26,919 INFO L226 Difference]: Without dead ends: 232 [2020-12-09 20:17:26,919 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 [2020-12-09 20:17:26,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2020-12-09 20:17:26,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 222. [2020-12-09 20:17:26,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 222 states. [2020-12-09 20:17:26,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 274 transitions. [2020-12-09 20:17:26,923 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 274 transitions. Word has length 24 [2020-12-09 20:17:26,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:17:26,923 INFO L481 AbstractCegarLoop]: Abstraction has 222 states and 274 transitions. [2020-12-09 20:17:26,923 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 20:17:26,923 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 274 transitions. [2020-12-09 20:17:26,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-09 20:17:26,924 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:17:26,924 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] [2020-12-09 20:17:26,924 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-12-09 20:17:26,924 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]=== [2020-12-09 20:17:26,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:17:26,924 INFO L82 PathProgramCache]: Analyzing trace with hash 1111471689, now seen corresponding path program 1 times [2020-12-09 20:17:26,924 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 20:17:26,925 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378886215] [2020-12-09 20:17:26,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 20:17:26,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:17:26,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:17:26,948 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378886215] [2020-12-09 20:17:26,948 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 20:17:26,948 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-09 20:17:26,948 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109133776] [2020-12-09 20:17:26,948 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-09 20:17:26,948 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 20:17:26,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-09 20:17:26,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-09 20:17:26,949 INFO L87 Difference]: Start difference. First operand 222 states and 274 transitions. Second operand 5 states. [2020-12-09 20:17:27,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:17:27,033 INFO L93 Difference]: Finished difference Result 247 states and 301 transitions. [2020-12-09 20:17:27,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-09 20:17:27,033 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-12-09 20:17:27,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:17:27,034 INFO L225 Difference]: With dead ends: 247 [2020-12-09 20:17:27,035 INFO L226 Difference]: Without dead ends: 246 [2020-12-09 20:17:27,035 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 [2020-12-09 20:17:27,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2020-12-09 20:17:27,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 236. [2020-12-09 20:17:27,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236 states. [2020-12-09 20:17:27,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 291 transitions. [2020-12-09 20:17:27,039 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 291 transitions. Word has length 25 [2020-12-09 20:17:27,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:17:27,039 INFO L481 AbstractCegarLoop]: Abstraction has 236 states and 291 transitions. [2020-12-09 20:17:27,039 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-09 20:17:27,039 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 291 transitions. [2020-12-09 20:17:27,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-09 20:17:27,039 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:17:27,040 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] [2020-12-09 20:17:27,040 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-12-09 20:17:27,040 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]=== [2020-12-09 20:17:27,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:17:27,040 INFO L82 PathProgramCache]: Analyzing trace with hash 1111459773, now seen corresponding path program 1 times [2020-12-09 20:17:27,040 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 20:17:27,040 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551707442] [2020-12-09 20:17:27,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 20:17:27,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:17:27,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:17:27,063 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551707442] [2020-12-09 20:17:27,064 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 20:17:27,064 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 20:17:27,064 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047256029] [2020-12-09 20:17:27,064 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 20:17:27,064 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 20:17:27,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 20:17:27,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-09 20:17:27,065 INFO L87 Difference]: Start difference. First operand 236 states and 291 transitions. Second operand 4 states. [2020-12-09 20:17:27,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:17:27,153 INFO L93 Difference]: Finished difference Result 246 states and 298 transitions. [2020-12-09 20:17:27,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 20:17:27,154 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2020-12-09 20:17:27,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:17:27,155 INFO L225 Difference]: With dead ends: 246 [2020-12-09 20:17:27,155 INFO L226 Difference]: Without dead ends: 246 [2020-12-09 20:17:27,155 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 [2020-12-09 20:17:27,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2020-12-09 20:17:27,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 236. [2020-12-09 20:17:27,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236 states. [2020-12-09 20:17:27,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 289 transitions. [2020-12-09 20:17:27,159 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 289 transitions. Word has length 25 [2020-12-09 20:17:27,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:17:27,159 INFO L481 AbstractCegarLoop]: Abstraction has 236 states and 289 transitions. [2020-12-09 20:17:27,159 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 20:17:27,159 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 289 transitions. [2020-12-09 20:17:27,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-09 20:17:27,160 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:17:27,160 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] [2020-12-09 20:17:27,160 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-12-09 20:17:27,160 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]=== [2020-12-09 20:17:27,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:17:27,160 INFO L82 PathProgramCache]: Analyzing trace with hash -55354404, now seen corresponding path program 1 times [2020-12-09 20:17:27,161 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 20:17:27,161 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191631644] [2020-12-09 20:17:27,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 20:17:27,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:17:27,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:17:27,182 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191631644] [2020-12-09 20:17:27,182 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 20:17:27,182 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 20:17:27,183 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547856030] [2020-12-09 20:17:27,183 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 20:17:27,183 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 20:17:27,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 20:17:27,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-09 20:17:27,183 INFO L87 Difference]: Start difference. First operand 236 states and 289 transitions. Second operand 4 states. [2020-12-09 20:17:27,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:17:27,294 INFO L93 Difference]: Finished difference Result 236 states and 283 transitions. [2020-12-09 20:17:27,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 20:17:27,295 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2020-12-09 20:17:27,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:17:27,296 INFO L225 Difference]: With dead ends: 236 [2020-12-09 20:17:27,296 INFO L226 Difference]: Without dead ends: 236 [2020-12-09 20:17:27,296 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 [2020-12-09 20:17:27,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2020-12-09 20:17:27,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 236. [2020-12-09 20:17:27,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236 states. [2020-12-09 20:17:27,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 283 transitions. [2020-12-09 20:17:27,300 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 283 transitions. Word has length 25 [2020-12-09 20:17:27,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:17:27,301 INFO L481 AbstractCegarLoop]: Abstraction has 236 states and 283 transitions. [2020-12-09 20:17:27,301 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 20:17:27,301 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 283 transitions. [2020-12-09 20:17:27,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-09 20:17:27,301 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:17:27,301 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] [2020-12-09 20:17:27,302 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-12-09 20:17:27,302 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]=== [2020-12-09 20:17:27,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:17:27,302 INFO L82 PathProgramCache]: Analyzing trace with hash -559828025, now seen corresponding path program 1 times [2020-12-09 20:17:27,302 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 20:17:27,302 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404722343] [2020-12-09 20:17:27,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 20:17:27,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:17:27,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:17:27,344 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404722343] [2020-12-09 20:17:27,344 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 20:17:27,344 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-09 20:17:27,345 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022805375] [2020-12-09 20:17:27,345 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-09 20:17:27,345 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 20:17:27,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-09 20:17:27,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 20:17:27,346 INFO L87 Difference]: Start difference. First operand 236 states and 283 transitions. Second operand 5 states. [2020-12-09 20:17:27,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:17:27,538 INFO L93 Difference]: Finished difference Result 254 states and 307 transitions. [2020-12-09 20:17:27,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-09 20:17:27,539 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-12-09 20:17:27,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:17:27,540 INFO L225 Difference]: With dead ends: 254 [2020-12-09 20:17:27,540 INFO L226 Difference]: Without dead ends: 254 [2020-12-09 20:17:27,541 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 [2020-12-09 20:17:27,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2020-12-09 20:17:27,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 236. [2020-12-09 20:17:27,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236 states. [2020-12-09 20:17:27,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 283 transitions. [2020-12-09 20:17:27,546 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 283 transitions. Word has length 25 [2020-12-09 20:17:27,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:17:27,546 INFO L481 AbstractCegarLoop]: Abstraction has 236 states and 283 transitions. [2020-12-09 20:17:27,546 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-09 20:17:27,546 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 283 transitions. [2020-12-09 20:17:27,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-12-09 20:17:27,547 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:17:27,547 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] [2020-12-09 20:17:27,547 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-12-09 20:17:27,547 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]=== [2020-12-09 20:17:27,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:17:27,548 INFO L82 PathProgramCache]: Analyzing trace with hash -433753737, now seen corresponding path program 1 times [2020-12-09 20:17:27,548 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 20:17:27,548 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179970281] [2020-12-09 20:17:27,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 20:17:27,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:17:27,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:17:27,578 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179970281] [2020-12-09 20:17:27,579 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 20:17:27,579 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 20:17:27,579 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079917817] [2020-12-09 20:17:27,579 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 20:17:27,579 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 20:17:27,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 20:17:27,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-09 20:17:27,580 INFO L87 Difference]: Start difference. First operand 236 states and 283 transitions. Second operand 4 states. [2020-12-09 20:17:27,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:17:27,680 INFO L93 Difference]: Finished difference Result 243 states and 288 transitions. [2020-12-09 20:17:27,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 20:17:27,681 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 26 [2020-12-09 20:17:27,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:17:27,682 INFO L225 Difference]: With dead ends: 243 [2020-12-09 20:17:27,682 INFO L226 Difference]: Without dead ends: 233 [2020-12-09 20:17:27,682 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 [2020-12-09 20:17:27,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2020-12-09 20:17:27,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 230. [2020-12-09 20:17:27,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-12-09 20:17:27,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 274 transitions. [2020-12-09 20:17:27,687 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 274 transitions. Word has length 26 [2020-12-09 20:17:27,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:17:27,687 INFO L481 AbstractCegarLoop]: Abstraction has 230 states and 274 transitions. [2020-12-09 20:17:27,687 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 20:17:27,687 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 274 transitions. [2020-12-09 20:17:27,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-12-09 20:17:27,688 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:17:27,688 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] [2020-12-09 20:17:27,688 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-12-09 20:17:27,688 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]=== [2020-12-09 20:17:27,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:17:27,689 INFO L82 PathProgramCache]: Analyzing trace with hash -222326515, now seen corresponding path program 1 times [2020-12-09 20:17:27,689 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 20:17:27,689 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703682259] [2020-12-09 20:17:27,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 20:17:27,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:17:27,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:17:27,710 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703682259] [2020-12-09 20:17:27,710 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 20:17:27,710 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 20:17:27,711 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114156480] [2020-12-09 20:17:27,711 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 20:17:27,711 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 20:17:27,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 20:17:27,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 20:17:27,712 INFO L87 Difference]: Start difference. First operand 230 states and 274 transitions. Second operand 3 states. [2020-12-09 20:17:27,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:17:27,788 INFO L93 Difference]: Finished difference Result 233 states and 272 transitions. [2020-12-09 20:17:27,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 20:17:27,788 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2020-12-09 20:17:27,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:17:27,790 INFO L225 Difference]: With dead ends: 233 [2020-12-09 20:17:27,790 INFO L226 Difference]: Without dead ends: 233 [2020-12-09 20:17:27,790 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 [2020-12-09 20:17:27,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2020-12-09 20:17:27,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 225. [2020-12-09 20:17:27,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 225 states. [2020-12-09 20:17:27,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 266 transitions. [2020-12-09 20:17:27,795 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 266 transitions. Word has length 26 [2020-12-09 20:17:27,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:17:27,795 INFO L481 AbstractCegarLoop]: Abstraction has 225 states and 266 transitions. [2020-12-09 20:17:27,795 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 20:17:27,795 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 266 transitions. [2020-12-09 20:17:27,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-12-09 20:17:27,796 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:17:27,796 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] [2020-12-09 20:17:27,796 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-12-09 20:17:27,796 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]=== [2020-12-09 20:17:27,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:17:27,797 INFO L82 PathProgramCache]: Analyzing trace with hash 1715268696, now seen corresponding path program 1 times [2020-12-09 20:17:27,797 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 20:17:27,797 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384701952] [2020-12-09 20:17:27,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 20:17:27,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:17:27,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:17:27,827 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384701952] [2020-12-09 20:17:27,827 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 20:17:27,827 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 20:17:27,827 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996872940] [2020-12-09 20:17:27,827 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 20:17:27,828 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 20:17:27,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 20:17:27,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-09 20:17:27,828 INFO L87 Difference]: Start difference. First operand 225 states and 266 transitions. Second operand 4 states. [2020-12-09 20:17:27,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:17:27,926 INFO L93 Difference]: Finished difference Result 230 states and 268 transitions. [2020-12-09 20:17:27,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 20:17:27,926 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 27 [2020-12-09 20:17:27,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:17:27,927 INFO L225 Difference]: With dead ends: 230 [2020-12-09 20:17:27,927 INFO L226 Difference]: Without dead ends: 214 [2020-12-09 20:17:27,928 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 [2020-12-09 20:17:27,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2020-12-09 20:17:27,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 209. [2020-12-09 20:17:27,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209 states. [2020-12-09 20:17:27,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 247 transitions. [2020-12-09 20:17:27,931 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 247 transitions. Word has length 27 [2020-12-09 20:17:27,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:17:27,931 INFO L481 AbstractCegarLoop]: Abstraction has 209 states and 247 transitions. [2020-12-09 20:17:27,931 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 20:17:27,931 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 247 transitions. [2020-12-09 20:17:27,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-12-09 20:17:27,932 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:17:27,932 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] [2020-12-09 20:17:27,932 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-12-09 20:17:27,932 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]=== [2020-12-09 20:17:27,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:17:27,932 INFO L82 PathProgramCache]: Analyzing trace with hash -419781972, now seen corresponding path program 1 times [2020-12-09 20:17:27,933 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 20:17:27,933 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460390325] [2020-12-09 20:17:27,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 20:17:27,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:17:27,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:17:27,965 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460390325] [2020-12-09 20:17:27,965 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 20:17:27,965 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-09 20:17:27,965 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305872506] [2020-12-09 20:17:27,966 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 20:17:27,966 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 20:17:27,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 20:17:27,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-09 20:17:27,966 INFO L87 Difference]: Start difference. First operand 209 states and 247 transitions. Second operand 4 states. [2020-12-09 20:17:28,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:17:28,035 INFO L93 Difference]: Finished difference Result 235 states and 284 transitions. [2020-12-09 20:17:28,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 20:17:28,035 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 27 [2020-12-09 20:17:28,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:17:28,036 INFO L225 Difference]: With dead ends: 235 [2020-12-09 20:17:28,036 INFO L226 Difference]: Without dead ends: 235 [2020-12-09 20:17:28,036 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 [2020-12-09 20:17:28,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2020-12-09 20:17:28,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 195. [2020-12-09 20:17:28,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2020-12-09 20:17:28,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 232 transitions. [2020-12-09 20:17:28,040 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 232 transitions. Word has length 27 [2020-12-09 20:17:28,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:17:28,040 INFO L481 AbstractCegarLoop]: Abstraction has 195 states and 232 transitions. [2020-12-09 20:17:28,040 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 20:17:28,040 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 232 transitions. [2020-12-09 20:17:28,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-12-09 20:17:28,041 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:17:28,041 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] [2020-12-09 20:17:28,041 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-12-09 20:17:28,041 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]=== [2020-12-09 20:17:28,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:17:28,041 INFO L82 PathProgramCache]: Analyzing trace with hash 350969545, now seen corresponding path program 1 times [2020-12-09 20:17:28,041 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 20:17:28,042 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465317586] [2020-12-09 20:17:28,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 20:17:28,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:17:28,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:17:28,062 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465317586] [2020-12-09 20:17:28,062 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 20:17:28,062 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 20:17:28,062 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821874933] [2020-12-09 20:17:28,062 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 20:17:28,063 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 20:17:28,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 20:17:28,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-09 20:17:28,063 INFO L87 Difference]: Start difference. First operand 195 states and 232 transitions. Second operand 4 states. [2020-12-09 20:17:28,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:17:28,137 INFO L93 Difference]: Finished difference Result 176 states and 206 transitions. [2020-12-09 20:17:28,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 20:17:28,137 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2020-12-09 20:17:28,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:17:28,138 INFO L225 Difference]: With dead ends: 176 [2020-12-09 20:17:28,138 INFO L226 Difference]: Without dead ends: 176 [2020-12-09 20:17:28,138 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 [2020-12-09 20:17:28,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2020-12-09 20:17:28,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 176. [2020-12-09 20:17:28,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176 states. [2020-12-09 20:17:28,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 206 transitions. [2020-12-09 20:17:28,141 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 206 transitions. Word has length 29 [2020-12-09 20:17:28,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:17:28,141 INFO L481 AbstractCegarLoop]: Abstraction has 176 states and 206 transitions. [2020-12-09 20:17:28,141 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 20:17:28,142 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 206 transitions. [2020-12-09 20:17:28,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-12-09 20:17:28,142 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:17:28,142 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] [2020-12-09 20:17:28,142 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-12-09 20:17:28,142 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]=== [2020-12-09 20:17:28,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:17:28,143 INFO L82 PathProgramCache]: Analyzing trace with hash 1516076744, now seen corresponding path program 1 times [2020-12-09 20:17:28,143 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 20:17:28,143 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929816659] [2020-12-09 20:17:28,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 20:17:28,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:17:28,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:17:28,186 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929816659] [2020-12-09 20:17:28,186 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 20:17:28,186 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-09 20:17:28,187 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007183133] [2020-12-09 20:17:28,187 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-09 20:17:28,187 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 20:17:28,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-09 20:17:28,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-09 20:17:28,187 INFO L87 Difference]: Start difference. First operand 176 states and 206 transitions. Second operand 6 states. [2020-12-09 20:17:28,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:17:28,297 INFO L93 Difference]: Finished difference Result 190 states and 219 transitions. [2020-12-09 20:17:28,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-09 20:17:28,297 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2020-12-09 20:17:28,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:17:28,298 INFO L225 Difference]: With dead ends: 190 [2020-12-09 20:17:28,298 INFO L226 Difference]: Without dead ends: 118 [2020-12-09 20:17:28,299 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 [2020-12-09 20:17:28,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2020-12-09 20:17:28,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 102. [2020-12-09 20:17:28,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2020-12-09 20:17:28,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 123 transitions. [2020-12-09 20:17:28,301 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 123 transitions. Word has length 30 [2020-12-09 20:17:28,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:17:28,301 INFO L481 AbstractCegarLoop]: Abstraction has 102 states and 123 transitions. [2020-12-09 20:17:28,302 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-09 20:17:28,302 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 123 transitions. [2020-12-09 20:17:28,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-12-09 20:17:28,302 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:17:28,302 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] [2020-12-09 20:17:28,302 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-12-09 20:17:28,303 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]=== [2020-12-09 20:17:28,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:17:28,303 INFO L82 PathProgramCache]: Analyzing trace with hash 6108514, now seen corresponding path program 1 times [2020-12-09 20:17:28,303 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 20:17:28,303 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970428463] [2020-12-09 20:17:28,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 20:17:28,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:17:28,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:17:28,372 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970428463] [2020-12-09 20:17:28,372 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 20:17:28,372 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-09 20:17:28,372 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377600922] [2020-12-09 20:17:28,372 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-09 20:17:28,373 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 20:17:28,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-09 20:17:28,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-12-09 20:17:28,373 INFO L87 Difference]: Start difference. First operand 102 states and 123 transitions. Second operand 7 states. [2020-12-09 20:17:28,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:17:28,562 INFO L93 Difference]: Finished difference Result 139 states and 168 transitions. [2020-12-09 20:17:28,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-09 20:17:28,562 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2020-12-09 20:17:28,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:17:28,563 INFO L225 Difference]: With dead ends: 139 [2020-12-09 20:17:28,563 INFO L226 Difference]: Without dead ends: 139 [2020-12-09 20:17:28,563 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-12-09 20:17:28,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2020-12-09 20:17:28,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 102. [2020-12-09 20:17:28,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2020-12-09 20:17:28,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 123 transitions. [2020-12-09 20:17:28,566 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 123 transitions. Word has length 33 [2020-12-09 20:17:28,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:17:28,566 INFO L481 AbstractCegarLoop]: Abstraction has 102 states and 123 transitions. [2020-12-09 20:17:28,566 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-09 20:17:28,566 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 123 transitions. [2020-12-09 20:17:28,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-12-09 20:17:28,567 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:17:28,567 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] [2020-12-09 20:17:28,567 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-12-09 20:17:28,567 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]=== [2020-12-09 20:17:28,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:17:28,568 INFO L82 PathProgramCache]: Analyzing trace with hash 1451876725, now seen corresponding path program 1 times [2020-12-09 20:17:28,568 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 20:17:28,568 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810663642] [2020-12-09 20:17:28,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 20:17:28,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:17:28,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:17:28,631 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810663642] [2020-12-09 20:17:28,631 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 20:17:28,631 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-09 20:17:28,632 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545310677] [2020-12-09 20:17:28,632 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-09 20:17:28,632 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 20:17:28,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-09 20:17:28,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 20:17:28,633 INFO L87 Difference]: Start difference. First operand 102 states and 123 transitions. Second operand 5 states. [2020-12-09 20:17:28,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:17:28,724 INFO L93 Difference]: Finished difference Result 133 states and 165 transitions. [2020-12-09 20:17:28,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-09 20:17:28,725 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 36 [2020-12-09 20:17:28,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:17:28,725 INFO L225 Difference]: With dead ends: 133 [2020-12-09 20:17:28,725 INFO L226 Difference]: Without dead ends: 133 [2020-12-09 20:17:28,726 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 [2020-12-09 20:17:28,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2020-12-09 20:17:28,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 88. [2020-12-09 20:17:28,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2020-12-09 20:17:28,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 104 transitions. [2020-12-09 20:17:28,728 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 104 transitions. Word has length 36 [2020-12-09 20:17:28,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:17:28,728 INFO L481 AbstractCegarLoop]: Abstraction has 88 states and 104 transitions. [2020-12-09 20:17:28,728 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-09 20:17:28,728 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 104 transitions. [2020-12-09 20:17:28,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-12-09 20:17:28,729 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:17:28,729 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] [2020-12-09 20:17:28,729 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-12-09 20:17:28,729 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]=== [2020-12-09 20:17:28,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:17:28,730 INFO L82 PathProgramCache]: Analyzing trace with hash 895975256, now seen corresponding path program 1 times [2020-12-09 20:17:28,730 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 20:17:28,730 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972357014] [2020-12-09 20:17:28,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 20:17:28,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:17:28,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:17:28,810 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972357014] [2020-12-09 20:17:28,810 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 20:17:28,810 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-09 20:17:28,810 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752047456] [2020-12-09 20:17:28,811 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-09 20:17:28,811 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 20:17:28,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-09 20:17:28,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-12-09 20:17:28,812 INFO L87 Difference]: Start difference. First operand 88 states and 104 transitions. Second operand 8 states. [2020-12-09 20:17:29,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:17:29,022 INFO L93 Difference]: Finished difference Result 136 states and 156 transitions. [2020-12-09 20:17:29,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-09 20:17:29,022 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 37 [2020-12-09 20:17:29,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:17:29,023 INFO L225 Difference]: With dead ends: 136 [2020-12-09 20:17:29,023 INFO L226 Difference]: Without dead ends: 122 [2020-12-09 20:17:29,024 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2020-12-09 20:17:29,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2020-12-09 20:17:29,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 88. [2020-12-09 20:17:29,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2020-12-09 20:17:29,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 103 transitions. [2020-12-09 20:17:29,026 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 103 transitions. Word has length 37 [2020-12-09 20:17:29,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:17:29,026 INFO L481 AbstractCegarLoop]: Abstraction has 88 states and 103 transitions. [2020-12-09 20:17:29,026 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-09 20:17:29,026 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 103 transitions. [2020-12-09 20:17:29,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-12-09 20:17:29,027 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:17:29,027 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] [2020-12-09 20:17:29,027 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-12-09 20:17:29,028 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]=== [2020-12-09 20:17:29,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:17:29,028 INFO L82 PathProgramCache]: Analyzing trace with hash -54315103, now seen corresponding path program 1 times [2020-12-09 20:17:29,028 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 20:17:29,028 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278378896] [2020-12-09 20:17:29,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 20:17:29,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:17:29,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:17:29,073 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278378896] [2020-12-09 20:17:29,073 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 20:17:29,073 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-09 20:17:29,073 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87239400] [2020-12-09 20:17:29,074 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-09 20:17:29,074 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 20:17:29,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-09 20:17:29,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-09 20:17:29,074 INFO L87 Difference]: Start difference. First operand 88 states and 103 transitions. Second operand 6 states. [2020-12-09 20:17:29,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:17:29,135 INFO L93 Difference]: Finished difference Result 106 states and 121 transitions. [2020-12-09 20:17:29,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-09 20:17:29,135 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 37 [2020-12-09 20:17:29,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:17:29,136 INFO L225 Difference]: With dead ends: 106 [2020-12-09 20:17:29,136 INFO L226 Difference]: Without dead ends: 90 [2020-12-09 20:17:29,136 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 [2020-12-09 20:17:29,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2020-12-09 20:17:29,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2020-12-09 20:17:29,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-12-09 20:17:29,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 104 transitions. [2020-12-09 20:17:29,139 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 104 transitions. Word has length 37 [2020-12-09 20:17:29,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:17:29,139 INFO L481 AbstractCegarLoop]: Abstraction has 90 states and 104 transitions. [2020-12-09 20:17:29,139 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-09 20:17:29,139 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 104 transitions. [2020-12-09 20:17:29,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-12-09 20:17:29,139 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:17:29,140 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] [2020-12-09 20:17:29,140 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-12-09 20:17:29,140 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]=== [2020-12-09 20:17:29,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:17:29,140 INFO L82 PathProgramCache]: Analyzing trace with hash -1661516033, now seen corresponding path program 1 times [2020-12-09 20:17:29,141 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 20:17:29,141 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214166158] [2020-12-09 20:17:29,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 20:17:29,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:17:29,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:17:29,176 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214166158] [2020-12-09 20:17:29,176 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 20:17:29,176 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-09 20:17:29,176 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138163184] [2020-12-09 20:17:29,176 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-09 20:17:29,176 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 20:17:29,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-09 20:17:29,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-09 20:17:29,177 INFO L87 Difference]: Start difference. First operand 90 states and 104 transitions. Second operand 6 states. [2020-12-09 20:17:29,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:17:29,227 INFO L93 Difference]: Finished difference Result 102 states and 115 transitions. [2020-12-09 20:17:29,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-09 20:17:29,227 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 40 [2020-12-09 20:17:29,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:17:29,228 INFO L225 Difference]: With dead ends: 102 [2020-12-09 20:17:29,228 INFO L226 Difference]: Without dead ends: 66 [2020-12-09 20:17:29,228 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 [2020-12-09 20:17:29,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-12-09 20:17:29,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2020-12-09 20:17:29,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-12-09 20:17:29,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 76 transitions. [2020-12-09 20:17:29,229 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 76 transitions. Word has length 40 [2020-12-09 20:17:29,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:17:29,229 INFO L481 AbstractCegarLoop]: Abstraction has 66 states and 76 transitions. [2020-12-09 20:17:29,229 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-09 20:17:29,229 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 76 transitions. [2020-12-09 20:17:29,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-12-09 20:17:29,229 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:17:29,230 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, 1, 1, 1] [2020-12-09 20:17:29,230 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-12-09 20:17:29,230 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]=== [2020-12-09 20:17:29,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:17:29,230 INFO L82 PathProgramCache]: Analyzing trace with hash -912112478, now seen corresponding path program 1 times [2020-12-09 20:17:29,230 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 20:17:29,230 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344255071] [2020-12-09 20:17:29,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 20:17:29,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:17:29,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:17:29,256 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344255071] [2020-12-09 20:17:29,256 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 20:17:29,256 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-09 20:17:29,256 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179685021] [2020-12-09 20:17:29,257 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 20:17:29,257 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 20:17:29,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 20:17:29,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-09 20:17:29,257 INFO L87 Difference]: Start difference. First operand 66 states and 76 transitions. Second operand 4 states. [2020-12-09 20:17:29,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:17:29,280 INFO L93 Difference]: Finished difference Result 68 states and 77 transitions. [2020-12-09 20:17:29,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 20:17:29,280 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 40 [2020-12-09 20:17:29,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:17:29,281 INFO L225 Difference]: With dead ends: 68 [2020-12-09 20:17:29,281 INFO L226 Difference]: Without dead ends: 66 [2020-12-09 20:17:29,281 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 [2020-12-09 20:17:29,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-12-09 20:17:29,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2020-12-09 20:17:29,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-12-09 20:17:29,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 75 transitions. [2020-12-09 20:17:29,282 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 75 transitions. Word has length 40 [2020-12-09 20:17:29,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:17:29,282 INFO L481 AbstractCegarLoop]: Abstraction has 66 states and 75 transitions. [2020-12-09 20:17:29,282 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 20:17:29,282 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 75 transitions. [2020-12-09 20:17:29,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-12-09 20:17:29,283 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:17:29,283 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] [2020-12-09 20:17:29,283 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2020-12-09 20:17:29,283 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]=== [2020-12-09 20:17:29,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:17:29,283 INFO L82 PathProgramCache]: Analyzing trace with hash 99780200, now seen corresponding path program 1 times [2020-12-09 20:17:29,284 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 20:17:29,284 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949683972] [2020-12-09 20:17:29,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 20:17:29,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:17:29,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:17:29,333 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949683972] [2020-12-09 20:17:29,333 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 20:17:29,333 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-09 20:17:29,333 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313297617] [2020-12-09 20:17:29,334 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-09 20:17:29,334 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 20:17:29,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-09 20:17:29,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-09 20:17:29,334 INFO L87 Difference]: Start difference. First operand 66 states and 75 transitions. Second operand 6 states. [2020-12-09 20:17:29,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:17:29,390 INFO L93 Difference]: Finished difference Result 82 states and 90 transitions. [2020-12-09 20:17:29,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-09 20:17:29,390 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 49 [2020-12-09 20:17:29,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:17:29,391 INFO L225 Difference]: With dead ends: 82 [2020-12-09 20:17:29,391 INFO L226 Difference]: Without dead ends: 63 [2020-12-09 20:17:29,391 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 [2020-12-09 20:17:29,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-12-09 20:17:29,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2020-12-09 20:17:29,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-12-09 20:17:29,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 69 transitions. [2020-12-09 20:17:29,392 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 69 transitions. Word has length 49 [2020-12-09 20:17:29,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:17:29,393 INFO L481 AbstractCegarLoop]: Abstraction has 63 states and 69 transitions. [2020-12-09 20:17:29,393 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-09 20:17:29,393 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 69 transitions. [2020-12-09 20:17:29,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-12-09 20:17:29,393 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:17:29,393 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] [2020-12-09 20:17:29,393 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2020-12-09 20:17:29,393 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]=== [2020-12-09 20:17:29,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:17:29,394 INFO L82 PathProgramCache]: Analyzing trace with hash -1098471420, now seen corresponding path program 1 times [2020-12-09 20:17:29,394 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 20:17:29,394 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953341114] [2020-12-09 20:17:29,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 20:17:29,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:17:29,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:17:29,481 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953341114] [2020-12-09 20:17:29,481 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 20:17:29,481 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-09 20:17:29,481 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770314573] [2020-12-09 20:17:29,482 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-09 20:17:29,482 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 20:17:29,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-09 20:17:29,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-12-09 20:17:29,482 INFO L87 Difference]: Start difference. First operand 63 states and 69 transitions. Second operand 9 states. [2020-12-09 20:17:29,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:17:29,681 INFO L93 Difference]: Finished difference Result 87 states and 93 transitions. [2020-12-09 20:17:29,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-09 20:17:29,681 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 51 [2020-12-09 20:17:29,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:17:29,682 INFO L225 Difference]: With dead ends: 87 [2020-12-09 20:17:29,682 INFO L226 Difference]: Without dead ends: 63 [2020-12-09 20:17:29,683 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2020-12-09 20:17:29,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-12-09 20:17:29,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2020-12-09 20:17:29,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-12-09 20:17:29,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 68 transitions. [2020-12-09 20:17:29,684 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 68 transitions. Word has length 51 [2020-12-09 20:17:29,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:17:29,684 INFO L481 AbstractCegarLoop]: Abstraction has 63 states and 68 transitions. [2020-12-09 20:17:29,685 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-09 20:17:29,685 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 68 transitions. [2020-12-09 20:17:29,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-12-09 20:17:29,685 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:17:29,685 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] [2020-12-09 20:17:29,685 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2020-12-09 20:17:29,686 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]=== [2020-12-09 20:17:29,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:17:29,686 INFO L82 PathProgramCache]: Analyzing trace with hash -1605273236, now seen corresponding path program 1 times [2020-12-09 20:17:29,686 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 20:17:29,686 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371716916] [2020-12-09 20:17:29,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 20:17:29,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:17:29,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:17:29,799 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371716916] [2020-12-09 20:17:29,799 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 20:17:29,799 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-09 20:17:29,799 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813790483] [2020-12-09 20:17:29,800 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-09 20:17:29,800 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 20:17:29,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-09 20:17:29,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-12-09 20:17:29,801 INFO L87 Difference]: Start difference. First operand 63 states and 68 transitions. Second operand 9 states. [2020-12-09 20:17:29,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:17:29,996 INFO L93 Difference]: Finished difference Result 78 states and 85 transitions. [2020-12-09 20:17:29,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-12-09 20:17:29,997 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 54 [2020-12-09 20:17:29,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:17:29,997 INFO L225 Difference]: With dead ends: 78 [2020-12-09 20:17:29,997 INFO L226 Difference]: Without dead ends: 0 [2020-12-09 20:17:29,997 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=93, Invalid=213, Unknown=0, NotChecked=0, Total=306 [2020-12-09 20:17:29,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-09 20:17:29,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-09 20:17:29,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-09 20:17:29,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-09 20:17:29,998 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 54 [2020-12-09 20:17:29,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:17:29,998 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-09 20:17:29,998 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-09 20:17:29,998 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-09 20:17:29,999 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-09 20:17:29,999 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2020-12-09 20:17:30,003 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 08:17:30 BoogieIcfgContainer [2020-12-09 20:17:30,003 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 20:17:30,004 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 20:17:30,004 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 20:17:30,004 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 20:17:30,004 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 08:17:24" (3/4) ... [2020-12-09 20:17:30,007 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-09 20:17:30,038 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 231 nodes and edges [2020-12-09 20:17:30,042 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 63 nodes and edges [2020-12-09 20:17:30,045 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2020-12-09 20:17:30,049 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-12-09 20:17:30,174 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_1923440c-bdd5-4d9b-a950-0358a9b4d580/bin/utaipan/witness.graphml [2020-12-09 20:17:30,174 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 20:17:30,175 INFO L168 Benchmark]: Toolchain (without parser) took 7783.11 ms. Allocated memory was 88.1 MB in the beginning and 243.3 MB in the end (delta: 155.2 MB). Free memory was 64.0 MB in the beginning and 132.0 MB in the end (delta: -68.0 MB). Peak memory consumption was 85.7 MB. Max. memory is 16.1 GB. [2020-12-09 20:17:30,175 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 88.1 MB. Free memory is still 61.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 20:17:30,176 INFO L168 Benchmark]: CACSL2BoogieTranslator took 326.28 ms. Allocated memory is still 88.1 MB. Free memory was 63.9 MB in the beginning and 57.4 MB in the end (delta: 6.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-09 20:17:30,176 INFO L168 Benchmark]: Boogie Procedure Inliner took 66.31 ms. Allocated memory is still 88.1 MB. Free memory was 57.4 MB in the beginning and 49.7 MB in the end (delta: 7.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-09 20:17:30,176 INFO L168 Benchmark]: Boogie Preprocessor took 52.26 ms. Allocated memory is still 88.1 MB. Free memory was 49.7 MB in the beginning and 44.9 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-09 20:17:30,177 INFO L168 Benchmark]: RCFGBuilder took 1699.70 ms. Allocated memory was 88.1 MB in the beginning and 138.4 MB in the end (delta: 50.3 MB). Free memory was 44.5 MB in the beginning and 78.0 MB in the end (delta: -33.5 MB). Peak memory consumption was 49.2 MB. Max. memory is 16.1 GB. [2020-12-09 20:17:30,177 INFO L168 Benchmark]: TraceAbstraction took 5463.55 ms. Allocated memory was 138.4 MB in the beginning and 243.3 MB in the end (delta: 104.9 MB). Free memory was 78.0 MB in the beginning and 161.4 MB in the end (delta: -83.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 16.1 GB. [2020-12-09 20:17:30,177 INFO L168 Benchmark]: Witness Printer took 170.30 ms. Allocated memory is still 243.3 MB. Free memory was 161.4 MB in the beginning and 132.0 MB in the end (delta: 29.4 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. [2020-12-09 20:17:30,179 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 88.1 MB. Free memory is still 61.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 326.28 ms. Allocated memory is still 88.1 MB. Free memory was 63.9 MB in the beginning and 57.4 MB in the end (delta: 6.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 66.31 ms. Allocated memory is still 88.1 MB. Free memory was 57.4 MB in the beginning and 49.7 MB in the end (delta: 7.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 52.26 ms. Allocated memory is still 88.1 MB. Free memory was 49.7 MB in the beginning and 44.9 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1699.70 ms. Allocated memory was 88.1 MB in the beginning and 138.4 MB in the end (delta: 50.3 MB). Free memory was 44.5 MB in the beginning and 78.0 MB in the end (delta: -33.5 MB). Peak memory consumption was 49.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5463.55 ms. Allocated memory was 138.4 MB in the beginning and 243.3 MB in the end (delta: 104.9 MB). Free memory was 78.0 MB in the beginning and 161.4 MB in the end (delta: -83.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 16.1 GB. * Witness Printer took 170.30 ms. Allocated memory is still 243.3 MB. Free memory was 161.4 MB in the beginning and 132.0 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: 5.4s, OverallIterations: 38, TraceHistogramMax: 1, AutomataDifference: 3.4s, 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, 1.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 219 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 148 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 1.0s 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: 0.1s AutomataMinimizationTime, 38 MinimizatonAttempts, 561 StatesRemovedByMinimization, 20 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.9s 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...