./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 a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_3bdf3ced-2eb1-4590-8fac-145ec40bd18d/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_3bdf3ced-2eb1-4590-8fac-145ec40bd18d/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_3bdf3ced-2eb1-4590-8fac-145ec40bd18d/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_3bdf3ced-2eb1-4590-8fac-145ec40bd18d/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ntdrivers-simplified/floppy_simpl3.cil-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_3bdf3ced-2eb1-4590-8fac-145ec40bd18d/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_3bdf3ced-2eb1-4590-8fac-145ec40bd18d/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-a4ecdab [2020-11-28 07:41:22,144 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 07:41:22,147 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 07:41:22,206 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 07:41:22,207 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 07:41:22,217 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 07:41:22,219 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 07:41:22,223 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 07:41:22,225 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 07:41:22,231 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 07:41:22,232 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 07:41:22,234 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 07:41:22,234 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 07:41:22,237 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 07:41:22,238 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 07:41:22,240 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 07:41:22,246 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 07:41:22,250 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 07:41:22,253 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 07:41:22,261 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 07:41:22,263 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 07:41:22,264 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 07:41:22,266 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 07:41:22,267 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 07:41:22,275 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 07:41:22,275 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 07:41:22,276 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 07:41:22,277 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 07:41:22,278 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 07:41:22,279 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 07:41:22,280 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 07:41:22,281 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 07:41:22,282 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 07:41:22,283 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 07:41:22,284 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 07:41:22,285 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 07:41:22,285 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 07:41:22,286 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 07:41:22,286 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 07:41:22,287 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 07:41:22,287 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 07:41:22,290 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_3bdf3ced-2eb1-4590-8fac-145ec40bd18d/bin/utaipan/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2020-11-28 07:41:22,329 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 07:41:22,329 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 07:41:22,331 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 07:41:22,331 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-28 07:41:22,331 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-28 07:41:22,331 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-28 07:41:22,332 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-28 07:41:22,332 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-28 07:41:22,332 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-28 07:41:22,332 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-28 07:41:22,333 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-28 07:41:22,333 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-28 07:41:22,334 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-28 07:41:22,334 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-28 07:41:22,334 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-28 07:41:22,335 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 07:41:22,335 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 07:41:22,335 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 07:41:22,335 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 07:41:22,336 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 07:41:22,336 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 07:41:22,336 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 07:41:22,336 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 07:41:22,336 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-28 07:41:22,337 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-28 07:41:22,337 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-28 07:41:22,338 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 07:41:22,338 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-28 07:41:22,339 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 07:41:22,339 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 07:41:22,339 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 07:41:22,339 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 07:41:22,340 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 07:41:22,340 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 07:41:22,340 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 07:41:22,340 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 07:41:22,341 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-28 07:41:22,341 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 07:41:22,341 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 07:41:22,341 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-28 07:41:22,344 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_3bdf3ced-2eb1-4590-8fac-145ec40bd18d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_3bdf3ced-2eb1-4590-8fac-145ec40bd18d/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9caca1067e52a4490439beb955df6129aef4eea8 [2020-11-28 07:41:22,656 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 07:41:22,694 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 07:41:22,699 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 07:41:22,701 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 07:41:22,701 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 07:41:22,702 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_3bdf3ced-2eb1-4590-8fac-145ec40bd18d/bin/utaipan/../../sv-benchmarks/c/ntdrivers-simplified/floppy_simpl3.cil-2.c [2020-11-28 07:41:22,776 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3bdf3ced-2eb1-4590-8fac-145ec40bd18d/bin/utaipan/data/a13b42794/831f5733bc57406b9afd369933516d64/FLAGc68c9e873 [2020-11-28 07:41:23,417 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 07:41:23,417 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_3bdf3ced-2eb1-4590-8fac-145ec40bd18d/sv-benchmarks/c/ntdrivers-simplified/floppy_simpl3.cil-2.c [2020-11-28 07:41:23,438 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3bdf3ced-2eb1-4590-8fac-145ec40bd18d/bin/utaipan/data/a13b42794/831f5733bc57406b9afd369933516d64/FLAGc68c9e873 [2020-11-28 07:41:23,689 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_3bdf3ced-2eb1-4590-8fac-145ec40bd18d/bin/utaipan/data/a13b42794/831f5733bc57406b9afd369933516d64 [2020-11-28 07:41:23,691 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 07:41:23,693 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 07:41:23,697 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 07:41:23,698 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 07:41:23,701 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 07:41:23,702 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:41:23" (1/1) ... [2020-11-28 07:41:23,705 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44b2cefb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:41:23, skipping insertion in model container [2020-11-28 07:41:23,705 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:41:23" (1/1) ... [2020-11-28 07:41:23,712 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 07:41:23,777 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 07:41:24,084 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:41:24,105 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 07:41:24,205 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:41:24,229 INFO L208 MainTranslator]: Completed translation [2020-11-28 07:41:24,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:41:24 WrapperNode [2020-11-28 07:41:24,229 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 07:41:24,230 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 07:41:24,230 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 07:41:24,231 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 07:41:24,236 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:41:24" (1/1) ... [2020-11-28 07:41:24,254 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:41:24" (1/1) ... [2020-11-28 07:41:24,373 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 07:41:24,374 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 07:41:24,374 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 07:41:24,374 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 07:41:24,396 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:41:24" (1/1) ... [2020-11-28 07:41:24,396 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:41:24" (1/1) ... [2020-11-28 07:41:24,405 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:41:24" (1/1) ... [2020-11-28 07:41:24,406 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:41:24" (1/1) ... [2020-11-28 07:41:24,462 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:41:24" (1/1) ... [2020-11-28 07:41:24,519 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:41:24" (1/1) ... [2020-11-28 07:41:24,524 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:41:24" (1/1) ... [2020-11-28 07:41:24,544 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 07:41:24,559 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 07:41:24,559 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 07:41:24,559 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 07:41:24,561 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:41:24" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3bdf3ced-2eb1-4590-8fac-145ec40bd18d/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 [2020-11-28 07:41:24,630 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 07:41:24,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 07:41:24,630 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 07:41:24,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 07:41:25,053 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-11-28 07:41:25,063 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-11-28 07:41:25,071 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-11-28 07:41:25,074 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-11-28 07:41:25,080 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-11-28 07:41:25,084 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-11-28 07:41:25,088 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-11-28 07:41:25,091 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-11-28 07:41:25,092 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-11-28 07:41:25,093 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-11-28 07:41:25,098 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-11-28 07:41:25,103 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-11-28 07:41:25,106 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-11-28 07:41:25,106 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-11-28 07:41:25,108 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-11-28 07:41:25,110 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-11-28 07:41:25,114 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-11-28 07:41:25,118 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-11-28 07:41:25,119 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-11-28 07:41:25,123 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-11-28 07:41:25,125 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-11-28 07:41:25,126 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-11-28 07:41:25,126 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-11-28 07:41:25,128 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-11-28 07:41:26,287 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##416: assume !false; [2020-11-28 07:41:26,287 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##415: assume false; [2020-11-28 07:41:26,288 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##445: assume false; [2020-11-28 07:41:26,288 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##290: assume false; [2020-11-28 07:41:26,288 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##291: assume !false; [2020-11-28 07:41:26,288 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##490: assume !false; [2020-11-28 07:41:26,289 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##269: assume false; [2020-11-28 07:41:26,289 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##270: assume !false; [2020-11-28 07:41:26,289 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##446: assume !false; [2020-11-28 07:41:26,289 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##209: assume false; [2020-11-28 07:41:26,289 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##210: assume !false; [2020-11-28 07:41:26,289 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##463: assume false; [2020-11-28 07:41:26,290 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##464: assume !false; [2020-11-28 07:41:26,292 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##470: assume false; [2020-11-28 07:41:26,292 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##232: assume false; [2020-11-28 07:41:26,293 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##471: assume !false; [2020-11-28 07:41:26,293 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##233: assume !false; [2020-11-28 07:41:26,293 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##242: assume !false; [2020-11-28 07:41:26,293 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##241: assume false; [2020-11-28 07:41:26,293 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##489: assume false; [2020-11-28 07:41:26,294 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##246: assume !false; [2020-11-28 07:41:26,294 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##245: assume false; [2020-11-28 07:41:26,294 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2020-11-28 07:41:26,295 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2020-11-28 07:41:26,295 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##86: assume !false; [2020-11-28 07:41:26,295 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume false; [2020-11-28 07:41:26,296 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##175: assume !false; [2020-11-28 07:41:26,296 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##174: assume false; [2020-11-28 07:41:26,297 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##180: assume false; [2020-11-28 07:41:26,297 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##181: assume !false; [2020-11-28 07:41:26,298 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##56: assume !false; [2020-11-28 07:41:26,298 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##55: assume false; [2020-11-28 07:41:26,299 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##137: assume false; [2020-11-28 07:41:26,299 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##35: assume !false; [2020-11-28 07:41:26,299 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##34: assume false; [2020-11-28 07:41:26,300 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##138: assume !false; [2020-11-28 07:41:26,300 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##393: assume false; [2020-11-28 07:41:26,300 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume false; [2020-11-28 07:41:26,300 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##394: assume !false; [2020-11-28 07:41:26,300 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume !false; [2020-11-28 07:41:26,300 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##164: assume !false; [2020-11-28 07:41:26,301 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##163: assume false; [2020-11-28 07:41:26,301 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##329: assume false; [2020-11-28 07:41:26,301 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##330: assume !false; [2020-11-28 07:41:26,301 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##108: assume !false; [2020-11-28 07:41:26,301 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##107: assume false; [2020-11-28 07:41:26,301 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##364: assume !false; [2020-11-28 07:41:26,301 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##363: assume false; [2020-11-28 07:41:27,687 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 07:41:27,687 INFO L298 CfgBuilder]: Removed 285 assume(true) statements. [2020-11-28 07:41:27,690 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:41:27 BoogieIcfgContainer [2020-11-28 07:41:27,690 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 07:41:27,692 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 07:41:27,692 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 07:41:27,696 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 07:41:27,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 07:41:23" (1/3) ... [2020-11-28 07:41:27,696 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@491dff2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:41:27, skipping insertion in model container [2020-11-28 07:41:27,697 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:41:24" (2/3) ... [2020-11-28 07:41:27,697 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@491dff2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:41:27, skipping insertion in model container [2020-11-28 07:41:27,698 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:41:27" (3/3) ... [2020-11-28 07:41:27,699 INFO L111 eAbstractionObserver]: Analyzing ICFG floppy_simpl3.cil-2.c [2020-11-28 07:41:27,710 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 07:41:27,715 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 41 error locations. [2020-11-28 07:41:27,727 INFO L253 AbstractCegarLoop]: Starting to check reachability of 41 error locations. [2020-11-28 07:41:27,761 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 07:41:27,762 INFO L378 AbstractCegarLoop]: Hoare is false [2020-11-28 07:41:27,762 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 07:41:27,762 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 07:41:27,763 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 07:41:27,763 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 07:41:27,763 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 07:41:27,763 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 07:41:27,792 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states. [2020-11-28 07:41:27,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-28 07:41:27,797 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:41:27,798 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-28 07:41:27,798 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]=== [2020-11-28 07:41:27,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:41:27,803 INFO L82 PathProgramCache]: Analyzing trace with hash 51594398, now seen corresponding path program 1 times [2020-11-28 07:41:27,809 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:41:27,810 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768532595] [2020-11-28 07:41:27,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:41:27,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:41:28,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:41:28,024 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768532595] [2020-11-28 07:41:28,024 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:41:28,025 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 07:41:28,025 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303442228] [2020-11-28 07:41:28,029 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 07:41:28,030 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:41:28,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 07:41:28,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 07:41:28,049 INFO L87 Difference]: Start difference. First operand 256 states. Second operand 3 states. [2020-11-28 07:41:28,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:41:28,125 INFO L93 Difference]: Finished difference Result 256 states and 338 transitions. [2020-11-28 07:41:28,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 07:41:28,132 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-11-28 07:41:28,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:41:28,149 INFO L225 Difference]: With dead ends: 256 [2020-11-28 07:41:28,149 INFO L226 Difference]: Without dead ends: 255 [2020-11-28 07:41:28,161 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 [2020-11-28 07:41:28,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2020-11-28 07:41:28,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 255. [2020-11-28 07:41:28,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 255 states. [2020-11-28 07:41:28,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 337 transitions. [2020-11-28 07:41:28,226 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 337 transitions. Word has length 4 [2020-11-28 07:41:28,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:41:28,226 INFO L481 AbstractCegarLoop]: Abstraction has 255 states and 337 transitions. [2020-11-28 07:41:28,226 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 07:41:28,226 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 337 transitions. [2020-11-28 07:41:28,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-28 07:41:28,227 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:41:28,227 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-11-28 07:41:28,227 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 07:41:28,228 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]=== [2020-11-28 07:41:28,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:41:28,228 INFO L82 PathProgramCache]: Analyzing trace with hash 1599432055, now seen corresponding path program 1 times [2020-11-28 07:41:28,229 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:41:28,229 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830954226] [2020-11-28 07:41:28,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:41:28,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:41:28,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:41:28,280 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830954226] [2020-11-28 07:41:28,280 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:41:28,280 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-28 07:41:28,281 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414057304] [2020-11-28 07:41:28,282 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 07:41:28,282 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:41:28,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 07:41:28,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 07:41:28,283 INFO L87 Difference]: Start difference. First operand 255 states and 337 transitions. Second operand 3 states. [2020-11-28 07:41:28,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:41:28,298 INFO L93 Difference]: Finished difference Result 254 states and 336 transitions. [2020-11-28 07:41:28,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 07:41:28,298 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-11-28 07:41:28,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:41:28,301 INFO L225 Difference]: With dead ends: 254 [2020-11-28 07:41:28,301 INFO L226 Difference]: Without dead ends: 252 [2020-11-28 07:41:28,302 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 [2020-11-28 07:41:28,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2020-11-28 07:41:28,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 252. [2020-11-28 07:41:28,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 252 states. [2020-11-28 07:41:28,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 327 transitions. [2020-11-28 07:41:28,322 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 327 transitions. Word has length 5 [2020-11-28 07:41:28,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:41:28,322 INFO L481 AbstractCegarLoop]: Abstraction has 252 states and 327 transitions. [2020-11-28 07:41:28,323 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 07:41:28,323 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 327 transitions. [2020-11-28 07:41:28,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 07:41:28,323 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:41:28,323 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:41:28,323 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 07:41:28,324 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]=== [2020-11-28 07:41:28,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:41:28,324 INFO L82 PathProgramCache]: Analyzing trace with hash -539862172, now seen corresponding path program 1 times [2020-11-28 07:41:28,325 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:41:28,325 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230670957] [2020-11-28 07:41:28,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:41:28,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:41:28,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:41:28,433 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230670957] [2020-11-28 07:41:28,433 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:41:28,434 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 07:41:28,434 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775266284] [2020-11-28 07:41:28,434 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 07:41:28,434 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:41:28,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 07:41:28,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 07:41:28,435 INFO L87 Difference]: Start difference. First operand 252 states and 327 transitions. Second operand 3 states. [2020-11-28 07:41:28,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:41:28,817 INFO L93 Difference]: Finished difference Result 256 states and 339 transitions. [2020-11-28 07:41:28,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 07:41:28,818 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-11-28 07:41:28,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:41:28,821 INFO L225 Difference]: With dead ends: 256 [2020-11-28 07:41:28,821 INFO L226 Difference]: Without dead ends: 256 [2020-11-28 07:41:28,821 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 [2020-11-28 07:41:28,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2020-11-28 07:41:28,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 256. [2020-11-28 07:41:28,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 256 states. [2020-11-28 07:41:28,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 339 transitions. [2020-11-28 07:41:28,840 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 339 transitions. Word has length 7 [2020-11-28 07:41:28,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:41:28,841 INFO L481 AbstractCegarLoop]: Abstraction has 256 states and 339 transitions. [2020-11-28 07:41:28,841 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 07:41:28,841 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 339 transitions. [2020-11-28 07:41:28,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-28 07:41:28,841 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:41:28,842 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:41:28,848 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-28 07:41:28,848 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]=== [2020-11-28 07:41:28,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:41:28,849 INFO L82 PathProgramCache]: Analyzing trace with hash 949184197, now seen corresponding path program 1 times [2020-11-28 07:41:28,849 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:41:28,849 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021332016] [2020-11-28 07:41:28,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:41:28,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:41:28,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:41:28,953 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021332016] [2020-11-28 07:41:28,953 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:41:28,953 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 07:41:28,954 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596351507] [2020-11-28 07:41:28,954 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 07:41:28,954 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:41:28,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 07:41:28,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 07:41:28,955 INFO L87 Difference]: Start difference. First operand 256 states and 339 transitions. Second operand 3 states. [2020-11-28 07:41:29,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:41:29,006 INFO L93 Difference]: Finished difference Result 330 states and 430 transitions. [2020-11-28 07:41:29,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 07:41:29,008 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-11-28 07:41:29,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:41:29,010 INFO L225 Difference]: With dead ends: 330 [2020-11-28 07:41:29,011 INFO L226 Difference]: Without dead ends: 330 [2020-11-28 07:41:29,015 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 [2020-11-28 07:41:29,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2020-11-28 07:41:29,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 244. [2020-11-28 07:41:29,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244 states. [2020-11-28 07:41:29,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 322 transitions. [2020-11-28 07:41:29,038 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 322 transitions. Word has length 9 [2020-11-28 07:41:29,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:41:29,038 INFO L481 AbstractCegarLoop]: Abstraction has 244 states and 322 transitions. [2020-11-28 07:41:29,039 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 07:41:29,039 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 322 transitions. [2020-11-28 07:41:29,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-28 07:41:29,041 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:41:29,043 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:41:29,043 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-28 07:41:29,044 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]=== [2020-11-28 07:41:29,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:41:29,045 INFO L82 PathProgramCache]: Analyzing trace with hash 964399819, now seen corresponding path program 1 times [2020-11-28 07:41:29,045 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:41:29,046 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010605181] [2020-11-28 07:41:29,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:41:29,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:41:29,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:41:29,106 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010605181] [2020-11-28 07:41:29,106 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:41:29,106 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 07:41:29,106 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055535272] [2020-11-28 07:41:29,107 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 07:41:29,107 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:41:29,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 07:41:29,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 07:41:29,108 INFO L87 Difference]: Start difference. First operand 244 states and 322 transitions. Second operand 3 states. [2020-11-28 07:41:29,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:41:29,137 INFO L93 Difference]: Finished difference Result 281 states and 366 transitions. [2020-11-28 07:41:29,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 07:41:29,137 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-11-28 07:41:29,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:41:29,139 INFO L225 Difference]: With dead ends: 281 [2020-11-28 07:41:29,139 INFO L226 Difference]: Without dead ends: 281 [2020-11-28 07:41:29,140 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 [2020-11-28 07:41:29,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2020-11-28 07:41:29,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 262. [2020-11-28 07:41:29,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2020-11-28 07:41:29,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 348 transitions. [2020-11-28 07:41:29,156 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 348 transitions. Word has length 13 [2020-11-28 07:41:29,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:41:29,157 INFO L481 AbstractCegarLoop]: Abstraction has 262 states and 348 transitions. [2020-11-28 07:41:29,157 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 07:41:29,157 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 348 transitions. [2020-11-28 07:41:29,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-28 07:41:29,160 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:41:29,160 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:41:29,160 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-28 07:41:29,161 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]=== [2020-11-28 07:41:29,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:41:29,162 INFO L82 PathProgramCache]: Analyzing trace with hash -1313447183, now seen corresponding path program 1 times [2020-11-28 07:41:29,162 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:41:29,163 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076932303] [2020-11-28 07:41:29,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:41:29,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:41:29,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:41:29,231 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076932303] [2020-11-28 07:41:29,231 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:41:29,231 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 07:41:29,232 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067425458] [2020-11-28 07:41:29,232 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 07:41:29,232 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:41:29,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 07:41:29,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 07:41:29,233 INFO L87 Difference]: Start difference. First operand 262 states and 348 transitions. Second operand 3 states. [2020-11-28 07:41:29,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:41:29,398 INFO L93 Difference]: Finished difference Result 279 states and 369 transitions. [2020-11-28 07:41:29,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 07:41:29,399 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2020-11-28 07:41:29,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:41:29,401 INFO L225 Difference]: With dead ends: 279 [2020-11-28 07:41:29,401 INFO L226 Difference]: Without dead ends: 279 [2020-11-28 07:41:29,401 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 [2020-11-28 07:41:29,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2020-11-28 07:41:29,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 279. [2020-11-28 07:41:29,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 279 states. [2020-11-28 07:41:29,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 369 transitions. [2020-11-28 07:41:29,412 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 369 transitions. Word has length 16 [2020-11-28 07:41:29,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:41:29,413 INFO L481 AbstractCegarLoop]: Abstraction has 279 states and 369 transitions. [2020-11-28 07:41:29,413 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 07:41:29,413 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 369 transitions. [2020-11-28 07:41:29,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-28 07:41:29,419 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:41:29,419 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:41:29,419 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-28 07:41:29,420 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]=== [2020-11-28 07:41:29,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:41:29,421 INFO L82 PathProgramCache]: Analyzing trace with hash 95232941, now seen corresponding path program 1 times [2020-11-28 07:41:29,421 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:41:29,421 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697963923] [2020-11-28 07:41:29,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:41:29,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:41:29,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:41:29,512 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697963923] [2020-11-28 07:41:29,512 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:41:29,512 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 07:41:29,512 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177880421] [2020-11-28 07:41:29,513 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 07:41:29,513 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:41:29,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 07:41:29,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 07:41:29,514 INFO L87 Difference]: Start difference. First operand 279 states and 369 transitions. Second operand 4 states. [2020-11-28 07:41:29,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:41:29,555 INFO L93 Difference]: Finished difference Result 290 states and 374 transitions. [2020-11-28 07:41:29,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 07:41:29,556 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-11-28 07:41:29,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:41:29,557 INFO L225 Difference]: With dead ends: 290 [2020-11-28 07:41:29,558 INFO L226 Difference]: Without dead ends: 290 [2020-11-28 07:41:29,558 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 [2020-11-28 07:41:29,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2020-11-28 07:41:29,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 266. [2020-11-28 07:41:29,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-11-28 07:41:29,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 348 transitions. [2020-11-28 07:41:29,565 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 348 transitions. Word has length 16 [2020-11-28 07:41:29,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:41:29,566 INFO L481 AbstractCegarLoop]: Abstraction has 266 states and 348 transitions. [2020-11-28 07:41:29,566 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 07:41:29,566 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 348 transitions. [2020-11-28 07:41:29,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-28 07:41:29,567 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:41:29,567 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:41:29,567 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-28 07:41:29,568 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]=== [2020-11-28 07:41:29,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:41:29,568 INFO L82 PathProgramCache]: Analyzing trace with hash -2042792256, now seen corresponding path program 1 times [2020-11-28 07:41:29,568 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:41:29,569 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947017795] [2020-11-28 07:41:29,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:41:29,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:41:29,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:41:29,604 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947017795] [2020-11-28 07:41:29,604 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:41:29,605 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 07:41:29,605 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012786560] [2020-11-28 07:41:29,605 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 07:41:29,605 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:41:29,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 07:41:29,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 07:41:29,606 INFO L87 Difference]: Start difference. First operand 266 states and 348 transitions. Second operand 4 states. [2020-11-28 07:41:29,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:41:29,636 INFO L93 Difference]: Finished difference Result 277 states and 360 transitions. [2020-11-28 07:41:29,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 07:41:29,637 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-11-28 07:41:29,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:41:29,639 INFO L225 Difference]: With dead ends: 277 [2020-11-28 07:41:29,639 INFO L226 Difference]: Without dead ends: 264 [2020-11-28 07:41:29,639 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 [2020-11-28 07:41:29,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2020-11-28 07:41:29,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 264. [2020-11-28 07:41:29,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 264 states. [2020-11-28 07:41:29,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 345 transitions. [2020-11-28 07:41:29,645 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 345 transitions. Word has length 17 [2020-11-28 07:41:29,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:41:29,646 INFO L481 AbstractCegarLoop]: Abstraction has 264 states and 345 transitions. [2020-11-28 07:41:29,646 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 07:41:29,646 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 345 transitions. [2020-11-28 07:41:29,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-28 07:41:29,647 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:41:29,647 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:41:29,647 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-28 07:41:29,647 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]=== [2020-11-28 07:41:29,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:41:29,648 INFO L82 PathProgramCache]: Analyzing trace with hash 799467928, now seen corresponding path program 1 times [2020-11-28 07:41:29,648 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:41:29,649 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612819340] [2020-11-28 07:41:29,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:41:29,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:41:29,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:41:29,690 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612819340] [2020-11-28 07:41:29,690 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:41:29,690 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 07:41:29,691 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985732511] [2020-11-28 07:41:29,691 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 07:41:29,691 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:41:29,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 07:41:29,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 07:41:29,692 INFO L87 Difference]: Start difference. First operand 264 states and 345 transitions. Second operand 3 states. [2020-11-28 07:41:29,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:41:29,840 INFO L93 Difference]: Finished difference Result 261 states and 341 transitions. [2020-11-28 07:41:29,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 07:41:29,841 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-11-28 07:41:29,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:41:29,842 INFO L225 Difference]: With dead ends: 261 [2020-11-28 07:41:29,842 INFO L226 Difference]: Without dead ends: 261 [2020-11-28 07:41:29,843 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 [2020-11-28 07:41:29,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2020-11-28 07:41:29,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 261. [2020-11-28 07:41:29,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 261 states. [2020-11-28 07:41:29,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 341 transitions. [2020-11-28 07:41:29,849 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 341 transitions. Word has length 17 [2020-11-28 07:41:29,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:41:29,849 INFO L481 AbstractCegarLoop]: Abstraction has 261 states and 341 transitions. [2020-11-28 07:41:29,849 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 07:41:29,849 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 341 transitions. [2020-11-28 07:41:29,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-28 07:41:29,851 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:41:29,852 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:41:29,852 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-28 07:41:29,853 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]=== [2020-11-28 07:41:29,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:41:29,854 INFO L82 PathProgramCache]: Analyzing trace with hash 904438554, now seen corresponding path program 1 times [2020-11-28 07:41:29,854 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:41:29,854 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279905246] [2020-11-28 07:41:29,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:41:29,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:41:29,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:41:29,897 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279905246] [2020-11-28 07:41:29,898 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:41:29,898 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 07:41:29,898 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923883469] [2020-11-28 07:41:29,898 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 07:41:29,898 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:41:29,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 07:41:29,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 07:41:29,899 INFO L87 Difference]: Start difference. First operand 261 states and 341 transitions. Second operand 3 states. [2020-11-28 07:41:30,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:41:30,033 INFO L93 Difference]: Finished difference Result 249 states and 329 transitions. [2020-11-28 07:41:30,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 07:41:30,033 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-11-28 07:41:30,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:41:30,035 INFO L225 Difference]: With dead ends: 249 [2020-11-28 07:41:30,035 INFO L226 Difference]: Without dead ends: 249 [2020-11-28 07:41:30,035 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 [2020-11-28 07:41:30,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2020-11-28 07:41:30,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 249. [2020-11-28 07:41:30,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2020-11-28 07:41:30,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 329 transitions. [2020-11-28 07:41:30,041 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 329 transitions. Word has length 17 [2020-11-28 07:41:30,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:41:30,042 INFO L481 AbstractCegarLoop]: Abstraction has 249 states and 329 transitions. [2020-11-28 07:41:30,042 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 07:41:30,042 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 329 transitions. [2020-11-28 07:41:30,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-28 07:41:30,043 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:41:30,043 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:41:30,043 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-28 07:41:30,043 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]=== [2020-11-28 07:41:30,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:41:30,046 INFO L82 PathProgramCache]: Analyzing trace with hash -35269808, now seen corresponding path program 1 times [2020-11-28 07:41:30,046 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:41:30,046 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996831447] [2020-11-28 07:41:30,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:41:30,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:41:30,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:41:30,085 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996831447] [2020-11-28 07:41:30,086 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:41:30,086 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 07:41:30,086 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164311161] [2020-11-28 07:41:30,086 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 07:41:30,086 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:41:30,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 07:41:30,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 07:41:30,087 INFO L87 Difference]: Start difference. First operand 249 states and 329 transitions. Second operand 3 states. [2020-11-28 07:41:30,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:41:30,113 INFO L93 Difference]: Finished difference Result 247 states and 317 transitions. [2020-11-28 07:41:30,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 07:41:30,114 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2020-11-28 07:41:30,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:41:30,115 INFO L225 Difference]: With dead ends: 247 [2020-11-28 07:41:30,115 INFO L226 Difference]: Without dead ends: 247 [2020-11-28 07:41:30,116 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 [2020-11-28 07:41:30,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2020-11-28 07:41:30,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 233. [2020-11-28 07:41:30,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2020-11-28 07:41:30,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 302 transitions. [2020-11-28 07:41:30,122 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 302 transitions. Word has length 18 [2020-11-28 07:41:30,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:41:30,124 INFO L481 AbstractCegarLoop]: Abstraction has 233 states and 302 transitions. [2020-11-28 07:41:30,124 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 07:41:30,124 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 302 transitions. [2020-11-28 07:41:30,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-28 07:41:30,125 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:41:30,125 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:41:30,125 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-28 07:41:30,125 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]=== [2020-11-28 07:41:30,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:41:30,126 INFO L82 PathProgramCache]: Analyzing trace with hash 2055828389, now seen corresponding path program 1 times [2020-11-28 07:41:30,126 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:41:30,127 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975668003] [2020-11-28 07:41:30,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:41:30,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:41:30,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:41:30,172 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975668003] [2020-11-28 07:41:30,172 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:41:30,172 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 07:41:30,172 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84695728] [2020-11-28 07:41:30,172 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 07:41:30,172 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:41:30,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 07:41:30,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 07:41:30,173 INFO L87 Difference]: Start difference. First operand 233 states and 302 transitions. Second operand 3 states. [2020-11-28 07:41:30,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:41:30,332 INFO L93 Difference]: Finished difference Result 296 states and 381 transitions. [2020-11-28 07:41:30,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 07:41:30,333 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-11-28 07:41:30,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:41:30,334 INFO L225 Difference]: With dead ends: 296 [2020-11-28 07:41:30,335 INFO L226 Difference]: Without dead ends: 296 [2020-11-28 07:41:30,335 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 [2020-11-28 07:41:30,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2020-11-28 07:41:30,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 241. [2020-11-28 07:41:30,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states. [2020-11-28 07:41:30,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 314 transitions. [2020-11-28 07:41:30,341 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 314 transitions. Word has length 19 [2020-11-28 07:41:30,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:41:30,341 INFO L481 AbstractCegarLoop]: Abstraction has 241 states and 314 transitions. [2020-11-28 07:41:30,341 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 07:41:30,341 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 314 transitions. [2020-11-28 07:41:30,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-28 07:41:30,343 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:41:30,343 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] [2020-11-28 07:41:30,344 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-11-28 07:41:30,344 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]=== [2020-11-28 07:41:30,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:41:30,344 INFO L82 PathProgramCache]: Analyzing trace with hash -701488392, now seen corresponding path program 1 times [2020-11-28 07:41:30,345 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:41:30,345 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282542515] [2020-11-28 07:41:30,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:41:30,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:41:30,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:41:30,392 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282542515] [2020-11-28 07:41:30,392 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:41:30,392 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 07:41:30,392 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317492032] [2020-11-28 07:41:30,392 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 07:41:30,393 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:41:30,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 07:41:30,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 07:41:30,393 INFO L87 Difference]: Start difference. First operand 241 states and 314 transitions. Second operand 3 states. [2020-11-28 07:41:30,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:41:30,415 INFO L93 Difference]: Finished difference Result 264 states and 338 transitions. [2020-11-28 07:41:30,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 07:41:30,415 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2020-11-28 07:41:30,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:41:30,417 INFO L225 Difference]: With dead ends: 264 [2020-11-28 07:41:30,417 INFO L226 Difference]: Without dead ends: 264 [2020-11-28 07:41:30,417 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 [2020-11-28 07:41:30,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2020-11-28 07:41:30,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 229. [2020-11-28 07:41:30,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2020-11-28 07:41:30,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 296 transitions. [2020-11-28 07:41:30,424 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 296 transitions. Word has length 20 [2020-11-28 07:41:30,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:41:30,424 INFO L481 AbstractCegarLoop]: Abstraction has 229 states and 296 transitions. [2020-11-28 07:41:30,424 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 07:41:30,424 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 296 transitions. [2020-11-28 07:41:30,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-28 07:41:30,425 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:41:30,425 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] [2020-11-28 07:41:30,425 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-11-28 07:41:30,426 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]=== [2020-11-28 07:41:30,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:41:30,426 INFO L82 PathProgramCache]: Analyzing trace with hash -784672008, now seen corresponding path program 1 times [2020-11-28 07:41:30,426 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:41:30,430 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895543575] [2020-11-28 07:41:30,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:41:30,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:41:30,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:41:30,481 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895543575] [2020-11-28 07:41:30,481 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:41:30,481 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 07:41:30,482 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969675088] [2020-11-28 07:41:30,482 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 07:41:30,482 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:41:30,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 07:41:30,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 07:41:30,483 INFO L87 Difference]: Start difference. First operand 229 states and 296 transitions. Second operand 4 states. [2020-11-28 07:41:30,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:41:30,646 INFO L93 Difference]: Finished difference Result 224 states and 288 transitions. [2020-11-28 07:41:30,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 07:41:30,647 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-11-28 07:41:30,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:41:30,648 INFO L225 Difference]: With dead ends: 224 [2020-11-28 07:41:30,649 INFO L226 Difference]: Without dead ends: 224 [2020-11-28 07:41:30,649 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 [2020-11-28 07:41:30,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2020-11-28 07:41:30,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 224. [2020-11-28 07:41:30,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2020-11-28 07:41:30,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 288 transitions. [2020-11-28 07:41:30,655 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 288 transitions. Word has length 20 [2020-11-28 07:41:30,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:41:30,655 INFO L481 AbstractCegarLoop]: Abstraction has 224 states and 288 transitions. [2020-11-28 07:41:30,655 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 07:41:30,655 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 288 transitions. [2020-11-28 07:41:30,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-28 07:41:30,656 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:41:30,656 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] [2020-11-28 07:41:30,656 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-11-28 07:41:30,657 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]=== [2020-11-28 07:41:30,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:41:30,657 INFO L82 PathProgramCache]: Analyzing trace with hash -2074977775, now seen corresponding path program 1 times [2020-11-28 07:41:30,657 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:41:30,658 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978032874] [2020-11-28 07:41:30,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:41:30,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:41:30,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:41:30,773 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978032874] [2020-11-28 07:41:30,773 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:41:30,773 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 07:41:30,774 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25970022] [2020-11-28 07:41:30,774 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 07:41:30,774 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:41:30,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 07:41:30,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 07:41:30,775 INFO L87 Difference]: Start difference. First operand 224 states and 288 transitions. Second operand 3 states. [2020-11-28 07:41:30,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:41:30,803 INFO L93 Difference]: Finished difference Result 226 states and 285 transitions. [2020-11-28 07:41:30,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 07:41:30,804 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2020-11-28 07:41:30,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:41:30,805 INFO L225 Difference]: With dead ends: 226 [2020-11-28 07:41:30,805 INFO L226 Difference]: Without dead ends: 226 [2020-11-28 07:41:30,806 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 [2020-11-28 07:41:30,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-11-28 07:41:30,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 212. [2020-11-28 07:41:30,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2020-11-28 07:41:30,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 270 transitions. [2020-11-28 07:41:30,813 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 270 transitions. Word has length 21 [2020-11-28 07:41:30,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:41:30,813 INFO L481 AbstractCegarLoop]: Abstraction has 212 states and 270 transitions. [2020-11-28 07:41:30,813 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 07:41:30,813 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 270 transitions. [2020-11-28 07:41:30,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-28 07:41:30,814 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:41:30,815 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] [2020-11-28 07:41:30,815 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-11-28 07:41:30,816 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]=== [2020-11-28 07:41:30,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:41:30,816 INFO L82 PathProgramCache]: Analyzing trace with hash 983245282, now seen corresponding path program 1 times [2020-11-28 07:41:30,816 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:41:30,817 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961104834] [2020-11-28 07:41:30,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:41:30,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:41:30,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:41:30,890 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961104834] [2020-11-28 07:41:30,890 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:41:30,890 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 07:41:30,890 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693029145] [2020-11-28 07:41:30,891 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 07:41:30,891 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:41:30,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 07:41:30,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 07:41:30,891 INFO L87 Difference]: Start difference. First operand 212 states and 270 transitions. Second operand 4 states. [2020-11-28 07:41:31,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:41:31,068 INFO L93 Difference]: Finished difference Result 212 states and 267 transitions. [2020-11-28 07:41:31,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 07:41:31,068 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2020-11-28 07:41:31,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:41:31,070 INFO L225 Difference]: With dead ends: 212 [2020-11-28 07:41:31,070 INFO L226 Difference]: Without dead ends: 212 [2020-11-28 07:41:31,070 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 [2020-11-28 07:41:31,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2020-11-28 07:41:31,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 212. [2020-11-28 07:41:31,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2020-11-28 07:41:31,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 267 transitions. [2020-11-28 07:41:31,075 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 267 transitions. Word has length 22 [2020-11-28 07:41:31,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:41:31,075 INFO L481 AbstractCegarLoop]: Abstraction has 212 states and 267 transitions. [2020-11-28 07:41:31,075 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 07:41:31,075 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 267 transitions. [2020-11-28 07:41:31,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-28 07:41:31,076 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:41:31,076 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] [2020-11-28 07:41:31,076 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-11-28 07:41:31,076 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]=== [2020-11-28 07:41:31,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:41:31,079 INFO L82 PathProgramCache]: Analyzing trace with hash -1645347946, now seen corresponding path program 1 times [2020-11-28 07:41:31,079 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:41:31,080 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900794496] [2020-11-28 07:41:31,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:41:31,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:41:31,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:41:31,142 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900794496] [2020-11-28 07:41:31,142 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:41:31,142 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 07:41:31,143 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935086676] [2020-11-28 07:41:31,143 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 07:41:31,143 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:41:31,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 07:41:31,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-28 07:41:31,144 INFO L87 Difference]: Start difference. First operand 212 states and 267 transitions. Second operand 5 states. [2020-11-28 07:41:31,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:41:31,426 INFO L93 Difference]: Finished difference Result 274 states and 343 transitions. [2020-11-28 07:41:31,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 07:41:31,427 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2020-11-28 07:41:31,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:41:31,428 INFO L225 Difference]: With dead ends: 274 [2020-11-28 07:41:31,429 INFO L226 Difference]: Without dead ends: 274 [2020-11-28 07:41:31,429 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 [2020-11-28 07:41:31,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2020-11-28 07:41:31,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 212. [2020-11-28 07:41:31,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2020-11-28 07:41:31,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 267 transitions. [2020-11-28 07:41:31,435 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 267 transitions. Word has length 23 [2020-11-28 07:41:31,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:41:31,435 INFO L481 AbstractCegarLoop]: Abstraction has 212 states and 267 transitions. [2020-11-28 07:41:31,435 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 07:41:31,435 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 267 transitions. [2020-11-28 07:41:31,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-28 07:41:31,436 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:41:31,437 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] [2020-11-28 07:41:31,437 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-11-28 07:41:31,437 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]=== [2020-11-28 07:41:31,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:41:31,439 INFO L82 PathProgramCache]: Analyzing trace with hash -1505917673, now seen corresponding path program 1 times [2020-11-28 07:41:31,440 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:41:31,440 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139390195] [2020-11-28 07:41:31,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:41:31,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:41:31,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:41:31,472 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139390195] [2020-11-28 07:41:31,472 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:41:31,472 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 07:41:31,472 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351277233] [2020-11-28 07:41:31,472 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 07:41:31,473 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:41:31,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 07:41:31,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 07:41:31,473 INFO L87 Difference]: Start difference. First operand 212 states and 267 transitions. Second operand 3 states. [2020-11-28 07:41:31,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:41:31,580 INFO L93 Difference]: Finished difference Result 242 states and 299 transitions. [2020-11-28 07:41:31,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 07:41:31,580 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-11-28 07:41:31,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:41:31,582 INFO L225 Difference]: With dead ends: 242 [2020-11-28 07:41:31,582 INFO L226 Difference]: Without dead ends: 242 [2020-11-28 07:41:31,582 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 [2020-11-28 07:41:31,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2020-11-28 07:41:31,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 232. [2020-11-28 07:41:31,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2020-11-28 07:41:31,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 290 transitions. [2020-11-28 07:41:31,588 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 290 transitions. Word has length 24 [2020-11-28 07:41:31,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:41:31,589 INFO L481 AbstractCegarLoop]: Abstraction has 232 states and 290 transitions. [2020-11-28 07:41:31,589 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 07:41:31,589 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 290 transitions. [2020-11-28 07:41:31,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-28 07:41:31,590 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:41:31,590 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] [2020-11-28 07:41:31,591 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-11-28 07:41:31,591 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]=== [2020-11-28 07:41:31,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:41:31,592 INFO L82 PathProgramCache]: Analyzing trace with hash 1194519884, now seen corresponding path program 1 times [2020-11-28 07:41:31,592 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:41:31,593 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360101177] [2020-11-28 07:41:31,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:41:31,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:41:31,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:41:31,629 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360101177] [2020-11-28 07:41:31,629 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:41:31,629 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 07:41:31,629 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021260499] [2020-11-28 07:41:31,630 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 07:41:31,630 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:41:31,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 07:41:31,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 07:41:31,630 INFO L87 Difference]: Start difference. First operand 232 states and 290 transitions. Second operand 5 states. [2020-11-28 07:41:31,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:41:31,709 INFO L93 Difference]: Finished difference Result 244 states and 303 transitions. [2020-11-28 07:41:31,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 07:41:31,710 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2020-11-28 07:41:31,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:41:31,711 INFO L225 Difference]: With dead ends: 244 [2020-11-28 07:41:31,711 INFO L226 Difference]: Without dead ends: 222 [2020-11-28 07:41:31,711 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 [2020-11-28 07:41:31,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2020-11-28 07:41:31,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 222. [2020-11-28 07:41:31,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 222 states. [2020-11-28 07:41:31,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 274 transitions. [2020-11-28 07:41:31,717 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 274 transitions. Word has length 24 [2020-11-28 07:41:31,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:41:31,717 INFO L481 AbstractCegarLoop]: Abstraction has 222 states and 274 transitions. [2020-11-28 07:41:31,717 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 07:41:31,717 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 274 transitions. [2020-11-28 07:41:31,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-28 07:41:31,719 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:41:31,719 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] [2020-11-28 07:41:31,719 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-11-28 07:41:31,719 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]=== [2020-11-28 07:41:31,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:41:31,720 INFO L82 PathProgramCache]: Analyzing trace with hash 580571048, now seen corresponding path program 1 times [2020-11-28 07:41:31,720 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:41:31,720 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526117043] [2020-11-28 07:41:31,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:41:31,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:41:31,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:41:31,756 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526117043] [2020-11-28 07:41:31,756 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:41:31,756 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 07:41:31,756 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788530454] [2020-11-28 07:41:31,756 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 07:41:31,756 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:41:31,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 07:41:31,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 07:41:31,757 INFO L87 Difference]: Start difference. First operand 222 states and 274 transitions. Second operand 5 states. [2020-11-28 07:41:31,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:41:31,900 INFO L93 Difference]: Finished difference Result 247 states and 301 transitions. [2020-11-28 07:41:31,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 07:41:31,900 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-11-28 07:41:31,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:41:31,902 INFO L225 Difference]: With dead ends: 247 [2020-11-28 07:41:31,902 INFO L226 Difference]: Without dead ends: 246 [2020-11-28 07:41:31,902 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 [2020-11-28 07:41:31,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2020-11-28 07:41:31,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 236. [2020-11-28 07:41:31,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236 states. [2020-11-28 07:41:31,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 291 transitions. [2020-11-28 07:41:31,911 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 291 transitions. Word has length 25 [2020-11-28 07:41:31,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:41:31,912 INFO L481 AbstractCegarLoop]: Abstraction has 236 states and 291 transitions. [2020-11-28 07:41:31,912 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 07:41:31,912 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 291 transitions. [2020-11-28 07:41:31,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-28 07:41:31,914 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:41:31,914 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] [2020-11-28 07:41:31,915 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-11-28 07:41:31,915 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]=== [2020-11-28 07:41:31,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:41:31,916 INFO L82 PathProgramCache]: Analyzing trace with hash 580557146, now seen corresponding path program 1 times [2020-11-28 07:41:31,916 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:41:31,916 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755966110] [2020-11-28 07:41:31,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:41:31,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:41:31,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:41:31,981 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755966110] [2020-11-28 07:41:31,981 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:41:31,981 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 07:41:31,981 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819855303] [2020-11-28 07:41:31,981 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 07:41:31,982 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:41:31,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 07:41:31,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 07:41:31,982 INFO L87 Difference]: Start difference. First operand 236 states and 291 transitions. Second operand 4 states. [2020-11-28 07:41:32,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:41:32,118 INFO L93 Difference]: Finished difference Result 246 states and 298 transitions. [2020-11-28 07:41:32,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 07:41:32,119 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2020-11-28 07:41:32,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:41:32,120 INFO L225 Difference]: With dead ends: 246 [2020-11-28 07:41:32,120 INFO L226 Difference]: Without dead ends: 246 [2020-11-28 07:41:32,120 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 [2020-11-28 07:41:32,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2020-11-28 07:41:32,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 236. [2020-11-28 07:41:32,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236 states. [2020-11-28 07:41:32,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 289 transitions. [2020-11-28 07:41:32,126 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 289 transitions. Word has length 25 [2020-11-28 07:41:32,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:41:32,126 INFO L481 AbstractCegarLoop]: Abstraction has 236 states and 289 transitions. [2020-11-28 07:41:32,127 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 07:41:32,127 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 289 transitions. [2020-11-28 07:41:32,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-28 07:41:32,128 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:41:32,128 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] [2020-11-28 07:41:32,129 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-11-28 07:41:32,131 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]=== [2020-11-28 07:41:32,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:41:32,131 INFO L82 PathProgramCache]: Analyzing trace with hash -630856999, now seen corresponding path program 1 times [2020-11-28 07:41:32,132 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:41:32,132 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048291299] [2020-11-28 07:41:32,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:41:32,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:41:32,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:41:32,185 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048291299] [2020-11-28 07:41:32,185 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:41:32,185 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 07:41:32,186 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931753073] [2020-11-28 07:41:32,186 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 07:41:32,186 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:41:32,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 07:41:32,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 07:41:32,187 INFO L87 Difference]: Start difference. First operand 236 states and 289 transitions. Second operand 4 states. [2020-11-28 07:41:32,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:41:32,319 INFO L93 Difference]: Finished difference Result 236 states and 283 transitions. [2020-11-28 07:41:32,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 07:41:32,322 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2020-11-28 07:41:32,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:41:32,324 INFO L225 Difference]: With dead ends: 236 [2020-11-28 07:41:32,324 INFO L226 Difference]: Without dead ends: 236 [2020-11-28 07:41:32,324 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 [2020-11-28 07:41:32,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2020-11-28 07:41:32,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 236. [2020-11-28 07:41:32,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236 states. [2020-11-28 07:41:32,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 283 transitions. [2020-11-28 07:41:32,329 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 283 transitions. Word has length 25 [2020-11-28 07:41:32,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:41:32,329 INFO L481 AbstractCegarLoop]: Abstraction has 236 states and 283 transitions. [2020-11-28 07:41:32,329 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 07:41:32,329 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 283 transitions. [2020-11-28 07:41:32,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-28 07:41:32,330 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:41:32,330 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] [2020-11-28 07:41:32,330 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-11-28 07:41:32,330 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]=== [2020-11-28 07:41:32,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:41:32,331 INFO L82 PathProgramCache]: Analyzing trace with hash -1143406816, now seen corresponding path program 1 times [2020-11-28 07:41:32,331 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:41:32,331 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695284383] [2020-11-28 07:41:32,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:41:32,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:41:32,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:41:32,402 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695284383] [2020-11-28 07:41:32,403 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:41:32,403 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 07:41:32,403 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652780356] [2020-11-28 07:41:32,403 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 07:41:32,403 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:41:32,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 07:41:32,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-28 07:41:32,404 INFO L87 Difference]: Start difference. First operand 236 states and 283 transitions. Second operand 5 states. [2020-11-28 07:41:32,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:41:32,653 INFO L93 Difference]: Finished difference Result 254 states and 307 transitions. [2020-11-28 07:41:32,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 07:41:32,654 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-11-28 07:41:32,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:41:32,655 INFO L225 Difference]: With dead ends: 254 [2020-11-28 07:41:32,655 INFO L226 Difference]: Without dead ends: 254 [2020-11-28 07:41:32,656 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 [2020-11-28 07:41:32,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2020-11-28 07:41:32,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 236. [2020-11-28 07:41:32,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236 states. [2020-11-28 07:41:32,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 283 transitions. [2020-11-28 07:41:32,661 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 283 transitions. Word has length 25 [2020-11-28 07:41:32,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:41:32,661 INFO L481 AbstractCegarLoop]: Abstraction has 236 states and 283 transitions. [2020-11-28 07:41:32,661 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 07:41:32,661 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 283 transitions. [2020-11-28 07:41:32,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-11-28 07:41:32,662 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:41:32,662 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] [2020-11-28 07:41:32,662 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-11-28 07:41:32,662 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]=== [2020-11-28 07:41:32,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:41:32,663 INFO L82 PathProgramCache]: Analyzing trace with hash 230875784, now seen corresponding path program 1 times [2020-11-28 07:41:32,663 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:41:32,663 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040611220] [2020-11-28 07:41:32,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:41:32,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:41:32,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:41:32,703 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040611220] [2020-11-28 07:41:32,703 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:41:32,703 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 07:41:32,704 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502787169] [2020-11-28 07:41:32,704 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 07:41:32,704 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:41:32,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 07:41:32,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 07:41:32,705 INFO L87 Difference]: Start difference. First operand 236 states and 283 transitions. Second operand 4 states. [2020-11-28 07:41:32,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:41:32,800 INFO L93 Difference]: Finished difference Result 243 states and 288 transitions. [2020-11-28 07:41:32,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 07:41:32,801 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 26 [2020-11-28 07:41:32,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:41:32,802 INFO L225 Difference]: With dead ends: 243 [2020-11-28 07:41:32,802 INFO L226 Difference]: Without dead ends: 233 [2020-11-28 07:41:32,802 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 [2020-11-28 07:41:32,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2020-11-28 07:41:32,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 230. [2020-11-28 07:41:32,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-11-28 07:41:32,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 274 transitions. [2020-11-28 07:41:32,807 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 274 transitions. Word has length 26 [2020-11-28 07:41:32,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:41:32,807 INFO L481 AbstractCegarLoop]: Abstraction has 230 states and 274 transitions. [2020-11-28 07:41:32,807 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 07:41:32,807 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 274 transitions. [2020-11-28 07:41:32,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-11-28 07:41:32,808 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:41:32,808 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] [2020-11-28 07:41:32,808 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-11-28 07:41:32,809 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]=== [2020-11-28 07:41:32,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:41:32,809 INFO L82 PathProgramCache]: Analyzing trace with hash 275870428, now seen corresponding path program 1 times [2020-11-28 07:41:32,809 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:41:32,809 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326263592] [2020-11-28 07:41:32,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:41:32,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:41:32,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:41:32,833 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326263592] [2020-11-28 07:41:32,833 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:41:32,833 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 07:41:32,833 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370007661] [2020-11-28 07:41:32,834 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 07:41:32,834 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:41:32,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 07:41:32,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 07:41:32,834 INFO L87 Difference]: Start difference. First operand 230 states and 274 transitions. Second operand 3 states. [2020-11-28 07:41:32,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:41:32,935 INFO L93 Difference]: Finished difference Result 233 states and 272 transitions. [2020-11-28 07:41:32,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 07:41:32,936 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2020-11-28 07:41:32,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:41:32,937 INFO L225 Difference]: With dead ends: 233 [2020-11-28 07:41:32,937 INFO L226 Difference]: Without dead ends: 233 [2020-11-28 07:41:32,938 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 [2020-11-28 07:41:32,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2020-11-28 07:41:32,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 225. [2020-11-28 07:41:32,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 225 states. [2020-11-28 07:41:32,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 266 transitions. [2020-11-28 07:41:32,944 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 266 transitions. Word has length 26 [2020-11-28 07:41:32,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:41:32,944 INFO L481 AbstractCegarLoop]: Abstraction has 225 states and 266 transitions. [2020-11-28 07:41:32,944 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 07:41:32,945 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 266 transitions. [2020-11-28 07:41:32,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-11-28 07:41:32,946 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:41:32,946 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] [2020-11-28 07:41:32,946 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-11-28 07:41:32,946 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]=== [2020-11-28 07:41:32,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:41:32,947 INFO L82 PathProgramCache]: Analyzing trace with hash 579340503, now seen corresponding path program 1 times [2020-11-28 07:41:32,947 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:41:32,947 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071951530] [2020-11-28 07:41:32,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:41:32,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:41:33,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:41:33,002 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071951530] [2020-11-28 07:41:33,002 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:41:33,002 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 07:41:33,002 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533608014] [2020-11-28 07:41:33,002 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 07:41:33,002 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:41:33,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 07:41:33,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-28 07:41:33,003 INFO L87 Difference]: Start difference. First operand 225 states and 266 transitions. Second operand 5 states. [2020-11-28 07:41:33,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:41:33,193 INFO L93 Difference]: Finished difference Result 233 states and 277 transitions. [2020-11-28 07:41:33,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 07:41:33,194 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2020-11-28 07:41:33,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:41:33,195 INFO L225 Difference]: With dead ends: 233 [2020-11-28 07:41:33,195 INFO L226 Difference]: Without dead ends: 233 [2020-11-28 07:41:33,195 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 [2020-11-28 07:41:33,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2020-11-28 07:41:33,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 215. [2020-11-28 07:41:33,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 215 states. [2020-11-28 07:41:33,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 253 transitions. [2020-11-28 07:41:33,198 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 253 transitions. Word has length 27 [2020-11-28 07:41:33,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:41:33,199 INFO L481 AbstractCegarLoop]: Abstraction has 215 states and 253 transitions. [2020-11-28 07:41:33,199 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 07:41:33,199 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 253 transitions. [2020-11-28 07:41:33,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-11-28 07:41:33,199 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:41:33,199 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] [2020-11-28 07:41:33,200 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-11-28 07:41:33,200 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]=== [2020-11-28 07:41:33,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:41:33,200 INFO L82 PathProgramCache]: Analyzing trace with hash -18586571, now seen corresponding path program 1 times [2020-11-28 07:41:33,200 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:41:33,201 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42632304] [2020-11-28 07:41:33,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:41:33,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:41:33,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:41:33,241 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42632304] [2020-11-28 07:41:33,241 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:41:33,241 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 07:41:33,241 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81226867] [2020-11-28 07:41:33,242 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 07:41:33,242 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:41:33,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 07:41:33,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 07:41:33,242 INFO L87 Difference]: Start difference. First operand 215 states and 253 transitions. Second operand 4 states. [2020-11-28 07:41:33,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:41:33,356 INFO L93 Difference]: Finished difference Result 220 states and 255 transitions. [2020-11-28 07:41:33,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 07:41:33,356 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 27 [2020-11-28 07:41:33,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:41:33,357 INFO L225 Difference]: With dead ends: 220 [2020-11-28 07:41:33,358 INFO L226 Difference]: Without dead ends: 204 [2020-11-28 07:41:33,358 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 [2020-11-28 07:41:33,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2020-11-28 07:41:33,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 199. [2020-11-28 07:41:33,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 199 states. [2020-11-28 07:41:33,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 234 transitions. [2020-11-28 07:41:33,362 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 234 transitions. Word has length 27 [2020-11-28 07:41:33,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:41:33,362 INFO L481 AbstractCegarLoop]: Abstraction has 199 states and 234 transitions. [2020-11-28 07:41:33,362 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 07:41:33,362 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 234 transitions. [2020-11-28 07:41:33,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-11-28 07:41:33,363 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:41:33,363 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] [2020-11-28 07:41:33,363 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-11-28 07:41:33,363 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]=== [2020-11-28 07:41:33,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:41:33,365 INFO L82 PathProgramCache]: Analyzing trace with hash 1607413354, now seen corresponding path program 1 times [2020-11-28 07:41:33,365 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:41:33,365 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106371096] [2020-11-28 07:41:33,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:41:33,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:41:33,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:41:33,426 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106371096] [2020-11-28 07:41:33,426 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:41:33,426 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 07:41:33,426 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757890337] [2020-11-28 07:41:33,426 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 07:41:33,427 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:41:33,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 07:41:33,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 07:41:33,427 INFO L87 Difference]: Start difference. First operand 199 states and 234 transitions. Second operand 4 states. [2020-11-28 07:41:33,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:41:33,535 INFO L93 Difference]: Finished difference Result 180 states and 208 transitions. [2020-11-28 07:41:33,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 07:41:33,535 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2020-11-28 07:41:33,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:41:33,536 INFO L225 Difference]: With dead ends: 180 [2020-11-28 07:41:33,536 INFO L226 Difference]: Without dead ends: 180 [2020-11-28 07:41:33,537 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 [2020-11-28 07:41:33,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2020-11-28 07:41:33,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 180. [2020-11-28 07:41:33,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180 states. [2020-11-28 07:41:33,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 208 transitions. [2020-11-28 07:41:33,540 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 208 transitions. Word has length 29 [2020-11-28 07:41:33,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:41:33,541 INFO L481 AbstractCegarLoop]: Abstraction has 180 states and 208 transitions. [2020-11-28 07:41:33,541 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 07:41:33,541 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 208 transitions. [2020-11-28 07:41:33,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-11-28 07:41:33,541 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:41:33,541 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] [2020-11-28 07:41:33,542 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-11-28 07:41:33,542 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]=== [2020-11-28 07:41:33,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:41:33,542 INFO L82 PathProgramCache]: Analyzing trace with hash -1885534469, now seen corresponding path program 1 times [2020-11-28 07:41:33,542 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:41:33,543 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079446787] [2020-11-28 07:41:33,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:41:33,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:41:33,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:41:33,575 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079446787] [2020-11-28 07:41:33,576 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:41:33,576 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 07:41:33,576 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142980160] [2020-11-28 07:41:33,576 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 07:41:33,576 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:41:33,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 07:41:33,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-28 07:41:33,577 INFO L87 Difference]: Start difference. First operand 180 states and 208 transitions. Second operand 4 states. [2020-11-28 07:41:33,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:41:33,668 INFO L93 Difference]: Finished difference Result 208 states and 247 transitions. [2020-11-28 07:41:33,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 07:41:33,668 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2020-11-28 07:41:33,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:41:33,670 INFO L225 Difference]: With dead ends: 208 [2020-11-28 07:41:33,670 INFO L226 Difference]: Without dead ends: 208 [2020-11-28 07:41:33,670 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 [2020-11-28 07:41:33,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2020-11-28 07:41:33,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 174. [2020-11-28 07:41:33,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2020-11-28 07:41:33,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 202 transitions. [2020-11-28 07:41:33,674 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 202 transitions. Word has length 29 [2020-11-28 07:41:33,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:41:33,674 INFO L481 AbstractCegarLoop]: Abstraction has 174 states and 202 transitions. [2020-11-28 07:41:33,674 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 07:41:33,674 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 202 transitions. [2020-11-28 07:41:33,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-11-28 07:41:33,675 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:41:33,675 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] [2020-11-28 07:41:33,675 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-11-28 07:41:33,675 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]=== [2020-11-28 07:41:33,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:41:33,676 INFO L82 PathProgramCache]: Analyzing trace with hash 1889195801, now seen corresponding path program 1 times [2020-11-28 07:41:33,676 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:41:33,676 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707662127] [2020-11-28 07:41:33,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:41:33,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:41:33,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:41:33,758 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707662127] [2020-11-28 07:41:33,758 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:41:33,758 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-28 07:41:33,759 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714739864] [2020-11-28 07:41:33,759 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 07:41:33,759 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:41:33,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 07:41:33,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-28 07:41:33,760 INFO L87 Difference]: Start difference. First operand 174 states and 202 transitions. Second operand 6 states. [2020-11-28 07:41:33,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:41:33,927 INFO L93 Difference]: Finished difference Result 188 states and 215 transitions. [2020-11-28 07:41:33,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-28 07:41:33,927 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2020-11-28 07:41:33,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:41:33,928 INFO L225 Difference]: With dead ends: 188 [2020-11-28 07:41:33,928 INFO L226 Difference]: Without dead ends: 116 [2020-11-28 07:41:33,928 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 [2020-11-28 07:41:33,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2020-11-28 07:41:33,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 100. [2020-11-28 07:41:33,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-11-28 07:41:33,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 119 transitions. [2020-11-28 07:41:33,931 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 119 transitions. Word has length 30 [2020-11-28 07:41:33,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:41:33,931 INFO L481 AbstractCegarLoop]: Abstraction has 100 states and 119 transitions. [2020-11-28 07:41:33,931 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 07:41:33,932 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 119 transitions. [2020-11-28 07:41:33,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-11-28 07:41:33,932 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:41:33,932 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, 1, 1, 1, 1, 1, 1] [2020-11-28 07:41:33,932 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-11-28 07:41:33,933 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]=== [2020-11-28 07:41:33,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:41:33,933 INFO L82 PathProgramCache]: Analyzing trace with hash 1349506875, now seen corresponding path program 1 times [2020-11-28 07:41:33,933 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:41:33,933 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357327146] [2020-11-28 07:41:33,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:41:33,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:41:33,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:41:33,989 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357327146] [2020-11-28 07:41:33,989 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:41:33,989 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 07:41:33,990 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485190035] [2020-11-28 07:41:33,990 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 07:41:33,990 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:41:33,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 07:41:33,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-28 07:41:33,991 INFO L87 Difference]: Start difference. First operand 100 states and 119 transitions. Second operand 5 states. [2020-11-28 07:41:34,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:41:34,096 INFO L93 Difference]: Finished difference Result 130 states and 160 transitions. [2020-11-28 07:41:34,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 07:41:34,096 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2020-11-28 07:41:34,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:41:34,097 INFO L225 Difference]: With dead ends: 130 [2020-11-28 07:41:34,097 INFO L226 Difference]: Without dead ends: 130 [2020-11-28 07:41:34,098 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 [2020-11-28 07:41:34,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2020-11-28 07:41:34,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 86. [2020-11-28 07:41:34,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2020-11-28 07:41:34,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 100 transitions. [2020-11-28 07:41:34,100 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 100 transitions. Word has length 33 [2020-11-28 07:41:34,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:41:34,100 INFO L481 AbstractCegarLoop]: Abstraction has 86 states and 100 transitions. [2020-11-28 07:41:34,100 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 07:41:34,100 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 100 transitions. [2020-11-28 07:41:34,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-11-28 07:41:34,101 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:41:34,101 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] [2020-11-28 07:41:34,101 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-11-28 07:41:34,102 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]=== [2020-11-28 07:41:34,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:41:34,102 INFO L82 PathProgramCache]: Analyzing trace with hash 793939089, now seen corresponding path program 1 times [2020-11-28 07:41:34,102 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:41:34,103 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061460092] [2020-11-28 07:41:34,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:41:34,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:41:34,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:41:34,166 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061460092] [2020-11-28 07:41:34,166 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:41:34,166 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-28 07:41:34,166 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368223771] [2020-11-28 07:41:34,167 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 07:41:34,167 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:41:34,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 07:41:34,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-28 07:41:34,168 INFO L87 Difference]: Start difference. First operand 86 states and 100 transitions. Second operand 6 states. [2020-11-28 07:41:34,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:41:34,271 INFO L93 Difference]: Finished difference Result 104 states and 118 transitions. [2020-11-28 07:41:34,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 07:41:34,272 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 37 [2020-11-28 07:41:34,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:41:34,273 INFO L225 Difference]: With dead ends: 104 [2020-11-28 07:41:34,273 INFO L226 Difference]: Without dead ends: 88 [2020-11-28 07:41:34,273 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 [2020-11-28 07:41:34,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2020-11-28 07:41:34,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2020-11-28 07:41:34,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2020-11-28 07:41:34,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 101 transitions. [2020-11-28 07:41:34,275 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 101 transitions. Word has length 37 [2020-11-28 07:41:34,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:41:34,275 INFO L481 AbstractCegarLoop]: Abstraction has 88 states and 101 transitions. [2020-11-28 07:41:34,276 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 07:41:34,276 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 101 transitions. [2020-11-28 07:41:34,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-11-28 07:41:34,276 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:41:34,276 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] [2020-11-28 07:41:34,276 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-11-28 07:41:34,276 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]=== [2020-11-28 07:41:34,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:41:34,277 INFO L82 PathProgramCache]: Analyzing trace with hash 1427169653, now seen corresponding path program 1 times [2020-11-28 07:41:34,277 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:41:34,277 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431046605] [2020-11-28 07:41:34,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:41:34,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:41:34,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:41:34,370 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431046605] [2020-11-28 07:41:34,371 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:41:34,371 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-28 07:41:34,371 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66969293] [2020-11-28 07:41:34,371 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-28 07:41:34,371 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:41:34,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-28 07:41:34,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-11-28 07:41:34,372 INFO L87 Difference]: Start difference. First operand 88 states and 101 transitions. Second operand 8 states. [2020-11-28 07:41:34,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:41:34,670 INFO L93 Difference]: Finished difference Result 137 states and 153 transitions. [2020-11-28 07:41:34,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-28 07:41:34,670 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 37 [2020-11-28 07:41:34,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:41:34,671 INFO L225 Difference]: With dead ends: 137 [2020-11-28 07:41:34,671 INFO L226 Difference]: Without dead ends: 123 [2020-11-28 07:41:34,672 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2020-11-28 07:41:34,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2020-11-28 07:41:34,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 88. [2020-11-28 07:41:34,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2020-11-28 07:41:34,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 100 transitions. [2020-11-28 07:41:34,674 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 100 transitions. Word has length 37 [2020-11-28 07:41:34,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:41:34,674 INFO L481 AbstractCegarLoop]: Abstraction has 88 states and 100 transitions. [2020-11-28 07:41:34,674 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-28 07:41:34,674 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 100 transitions. [2020-11-28 07:41:34,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-11-28 07:41:34,675 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:41:34,675 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] [2020-11-28 07:41:34,675 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-11-28 07:41:34,675 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]=== [2020-11-28 07:41:34,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:41:34,676 INFO L82 PathProgramCache]: Analyzing trace with hash 2109736968, now seen corresponding path program 1 times [2020-11-28 07:41:34,676 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:41:34,676 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638381217] [2020-11-28 07:41:34,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:41:34,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:41:34,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:41:34,715 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638381217] [2020-11-28 07:41:34,715 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:41:34,715 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 07:41:34,715 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88038924] [2020-11-28 07:41:34,716 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 07:41:34,716 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:41:34,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 07:41:34,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 07:41:34,716 INFO L87 Difference]: Start difference. First operand 88 states and 100 transitions. Second operand 4 states. [2020-11-28 07:41:34,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:41:34,748 INFO L93 Difference]: Finished difference Result 90 states and 101 transitions. [2020-11-28 07:41:34,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 07:41:34,749 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 40 [2020-11-28 07:41:34,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:41:34,750 INFO L225 Difference]: With dead ends: 90 [2020-11-28 07:41:34,750 INFO L226 Difference]: Without dead ends: 88 [2020-11-28 07:41:34,750 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 [2020-11-28 07:41:34,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2020-11-28 07:41:34,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2020-11-28 07:41:34,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2020-11-28 07:41:34,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 99 transitions. [2020-11-28 07:41:34,752 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 99 transitions. Word has length 40 [2020-11-28 07:41:34,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:41:34,752 INFO L481 AbstractCegarLoop]: Abstraction has 88 states and 99 transitions. [2020-11-28 07:41:34,752 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 07:41:34,752 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 99 transitions. [2020-11-28 07:41:34,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-11-28 07:41:34,753 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:41:34,753 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:41:34,753 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-11-28 07:41:34,753 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]=== [2020-11-28 07:41:34,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:41:34,753 INFO L82 PathProgramCache]: Analyzing trace with hash 1176449533, now seen corresponding path program 1 times [2020-11-28 07:41:34,754 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:41:34,754 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968069873] [2020-11-28 07:41:34,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:41:34,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:41:34,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:41:34,815 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968069873] [2020-11-28 07:41:34,815 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:41:34,815 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 07:41:34,815 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669400513] [2020-11-28 07:41:34,816 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 07:41:34,816 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:41:34,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 07:41:34,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-11-28 07:41:34,816 INFO L87 Difference]: Start difference. First operand 88 states and 99 transitions. Second operand 5 states. [2020-11-28 07:41:34,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:41:34,838 INFO L93 Difference]: Finished difference Result 162 states and 177 transitions. [2020-11-28 07:41:34,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 07:41:34,838 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 40 [2020-11-28 07:41:34,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:41:34,839 INFO L225 Difference]: With dead ends: 162 [2020-11-28 07:41:34,839 INFO L226 Difference]: Without dead ends: 162 [2020-11-28 07:41:34,840 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-11-28 07:41:34,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2020-11-28 07:41:34,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 88. [2020-11-28 07:41:34,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2020-11-28 07:41:34,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 98 transitions. [2020-11-28 07:41:34,842 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 98 transitions. Word has length 40 [2020-11-28 07:41:34,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:41:34,842 INFO L481 AbstractCegarLoop]: Abstraction has 88 states and 98 transitions. [2020-11-28 07:41:34,842 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 07:41:34,842 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 98 transitions. [2020-11-28 07:41:34,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-11-28 07:41:34,843 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:41:34,843 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] [2020-11-28 07:41:34,843 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2020-11-28 07:41:34,843 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]=== [2020-11-28 07:41:34,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:41:34,844 INFO L82 PathProgramCache]: Analyzing trace with hash 1268208380, now seen corresponding path program 1 times [2020-11-28 07:41:34,844 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:41:34,844 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162970752] [2020-11-28 07:41:34,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:41:34,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:41:34,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:41:34,889 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162970752] [2020-11-28 07:41:34,889 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:41:34,890 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-28 07:41:34,890 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658284086] [2020-11-28 07:41:34,890 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 07:41:34,890 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:41:34,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 07:41:34,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-28 07:41:34,891 INFO L87 Difference]: Start difference. First operand 88 states and 98 transitions. Second operand 6 states. [2020-11-28 07:41:34,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:41:34,954 INFO L93 Difference]: Finished difference Result 100 states and 109 transitions. [2020-11-28 07:41:34,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-28 07:41:34,954 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 40 [2020-11-28 07:41:34,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:41:34,954 INFO L225 Difference]: With dead ends: 100 [2020-11-28 07:41:34,955 INFO L226 Difference]: Without dead ends: 64 [2020-11-28 07:41:34,955 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 [2020-11-28 07:41:34,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2020-11-28 07:41:34,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2020-11-28 07:41:34,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2020-11-28 07:41:34,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 71 transitions. [2020-11-28 07:41:34,956 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 71 transitions. Word has length 40 [2020-11-28 07:41:34,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:41:34,956 INFO L481 AbstractCegarLoop]: Abstraction has 64 states and 71 transitions. [2020-11-28 07:41:34,956 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 07:41:34,956 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 71 transitions. [2020-11-28 07:41:34,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-11-28 07:41:34,956 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:41:34,956 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] [2020-11-28 07:41:34,957 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2020-11-28 07:41:34,957 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]=== [2020-11-28 07:41:34,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:41:34,957 INFO L82 PathProgramCache]: Analyzing trace with hash 137702211, now seen corresponding path program 1 times [2020-11-28 07:41:34,957 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:41:34,957 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507532924] [2020-11-28 07:41:34,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:41:34,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:41:35,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:41:35,038 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507532924] [2020-11-28 07:41:35,038 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:41:35,038 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-28 07:41:35,038 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738343816] [2020-11-28 07:41:35,039 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 07:41:35,039 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:41:35,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 07:41:35,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-28 07:41:35,040 INFO L87 Difference]: Start difference. First operand 64 states and 71 transitions. Second operand 6 states. [2020-11-28 07:41:35,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:41:35,115 INFO L93 Difference]: Finished difference Result 80 states and 86 transitions. [2020-11-28 07:41:35,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 07:41:35,116 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 49 [2020-11-28 07:41:35,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:41:35,117 INFO L225 Difference]: With dead ends: 80 [2020-11-28 07:41:35,117 INFO L226 Difference]: Without dead ends: 61 [2020-11-28 07:41:35,117 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 [2020-11-28 07:41:35,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-11-28 07:41:35,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2020-11-28 07:41:35,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-11-28 07:41:35,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 65 transitions. [2020-11-28 07:41:35,119 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 65 transitions. Word has length 49 [2020-11-28 07:41:35,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:41:35,119 INFO L481 AbstractCegarLoop]: Abstraction has 61 states and 65 transitions. [2020-11-28 07:41:35,119 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 07:41:35,119 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 65 transitions. [2020-11-28 07:41:35,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-11-28 07:41:35,120 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:41:35,120 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] [2020-11-28 07:41:35,120 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2020-11-28 07:41:35,121 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]=== [2020-11-28 07:41:35,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:41:35,121 INFO L82 PathProgramCache]: Analyzing trace with hash -1021079969, now seen corresponding path program 1 times [2020-11-28 07:41:35,121 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:41:35,121 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502505615] [2020-11-28 07:41:35,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:41:35,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:41:35,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:41:35,230 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502505615] [2020-11-28 07:41:35,230 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:41:35,230 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-11-28 07:41:35,230 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183161843] [2020-11-28 07:41:35,231 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-28 07:41:35,231 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:41:35,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-28 07:41:35,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-11-28 07:41:35,231 INFO L87 Difference]: Start difference. First operand 61 states and 65 transitions. Second operand 10 states. [2020-11-28 07:41:35,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:41:35,449 INFO L93 Difference]: Finished difference Result 85 states and 89 transitions. [2020-11-28 07:41:35,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-28 07:41:35,449 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 51 [2020-11-28 07:41:35,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:41:35,450 INFO L225 Difference]: With dead ends: 85 [2020-11-28 07:41:35,450 INFO L226 Difference]: Without dead ends: 61 [2020-11-28 07:41:35,451 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=98, Invalid=208, Unknown=0, NotChecked=0, Total=306 [2020-11-28 07:41:35,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-11-28 07:41:35,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2020-11-28 07:41:35,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-11-28 07:41:35,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 64 transitions. [2020-11-28 07:41:35,452 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 64 transitions. Word has length 51 [2020-11-28 07:41:35,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:41:35,452 INFO L481 AbstractCegarLoop]: Abstraction has 61 states and 64 transitions. [2020-11-28 07:41:35,452 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-28 07:41:35,453 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 64 transitions. [2020-11-28 07:41:35,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-11-28 07:41:35,453 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:41:35,453 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] [2020-11-28 07:41:35,453 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2020-11-28 07:41:35,453 INFO L429 AbstractCegarLoop]: === Iteration 39 === [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]=== [2020-11-28 07:41:35,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:41:35,454 INFO L82 PathProgramCache]: Analyzing trace with hash -557752529, now seen corresponding path program 1 times [2020-11-28 07:41:35,454 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:41:35,454 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720674110] [2020-11-28 07:41:35,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:41:35,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:41:35,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:41:35,561 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720674110] [2020-11-28 07:41:35,561 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:41:35,561 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-28 07:41:35,562 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702990067] [2020-11-28 07:41:35,562 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-28 07:41:35,562 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:41:35,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-28 07:41:35,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-11-28 07:41:35,563 INFO L87 Difference]: Start difference. First operand 61 states and 64 transitions. Second operand 9 states. [2020-11-28 07:41:35,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:41:35,795 INFO L93 Difference]: Finished difference Result 76 states and 81 transitions. [2020-11-28 07:41:35,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-28 07:41:35,795 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 54 [2020-11-28 07:41:35,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:41:35,796 INFO L225 Difference]: With dead ends: 76 [2020-11-28 07:41:35,796 INFO L226 Difference]: Without dead ends: 0 [2020-11-28 07:41:35,796 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=93, Invalid=213, Unknown=0, NotChecked=0, Total=306 [2020-11-28 07:41:35,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-28 07:41:35,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-28 07:41:35,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-28 07:41:35,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-28 07:41:35,797 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 54 [2020-11-28 07:41:35,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:41:35,797 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 07:41:35,797 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-28 07:41:35,797 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-28 07:41:35,797 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 07:41:35,798 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2020-11-28 07:41:35,802 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 07:41:35 BoogieIcfgContainer [2020-11-28 07:41:35,802 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 07:41:35,803 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 07:41:35,803 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 07:41:35,803 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 07:41:35,804 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:41:27" (3/4) ... [2020-11-28 07:41:35,807 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 07:41:35,843 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 229 nodes and edges [2020-11-28 07:41:35,847 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 64 nodes and edges [2020-11-28 07:41:35,851 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2020-11-28 07:41:35,855 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-11-28 07:41:36,054 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_3bdf3ced-2eb1-4590-8fac-145ec40bd18d/bin/utaipan/witness.graphml [2020-11-28 07:41:36,054 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 07:41:36,057 INFO L168 Benchmark]: Toolchain (without parser) took 12362.44 ms. Allocated memory was 88.1 MB in the beginning and 289.4 MB in the end (delta: 201.3 MB). Free memory was 57.7 MB in the beginning and 233.1 MB in the end (delta: -175.4 MB). Peak memory consumption was 173.5 MB. Max. memory is 16.1 GB. [2020-11-28 07:41:36,057 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 88.1 MB. Free memory is still 47.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:41:36,058 INFO L168 Benchmark]: CACSL2BoogieTranslator took 532.66 ms. Allocated memory is still 88.1 MB. Free memory was 57.5 MB in the beginning and 53.9 MB in the end (delta: 3.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 07:41:36,058 INFO L168 Benchmark]: Boogie Procedure Inliner took 142.61 ms. Allocated memory is still 88.1 MB. Free memory was 53.9 MB in the beginning and 45.8 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 07:41:36,058 INFO L168 Benchmark]: Boogie Preprocessor took 184.10 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 45.8 MB in the beginning and 80.0 MB in the end (delta: -34.2 MB). Peak memory consumption was 11.2 MB. Max. memory is 16.1 GB. [2020-11-28 07:41:36,059 INFO L168 Benchmark]: RCFGBuilder took 3131.59 ms. Allocated memory was 107.0 MB in the beginning and 146.8 MB in the end (delta: 39.8 MB). Free memory was 79.9 MB in the beginning and 89.1 MB in the end (delta: -9.2 MB). Peak memory consumption was 79.2 MB. Max. memory is 16.1 GB. [2020-11-28 07:41:36,059 INFO L168 Benchmark]: TraceAbstraction took 8111.01 ms. Allocated memory was 146.8 MB in the beginning and 289.4 MB in the end (delta: 142.6 MB). Free memory was 88.1 MB in the beginning and 99.0 MB in the end (delta: -10.9 MB). Peak memory consumption was 131.7 MB. Max. memory is 16.1 GB. [2020-11-28 07:41:36,060 INFO L168 Benchmark]: Witness Printer took 251.36 ms. Allocated memory is still 289.4 MB. Free memory was 99.0 MB in the beginning and 233.1 MB in the end (delta: -134.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-28 07:41:36,062 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 88.1 MB. Free memory is still 47.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 532.66 ms. Allocated memory is still 88.1 MB. Free memory was 57.5 MB in the beginning and 53.9 MB in the end (delta: 3.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 142.61 ms. Allocated memory is still 88.1 MB. Free memory was 53.9 MB in the beginning and 45.8 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 184.10 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 45.8 MB in the beginning and 80.0 MB in the end (delta: -34.2 MB). Peak memory consumption was 11.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 3131.59 ms. Allocated memory was 107.0 MB in the beginning and 146.8 MB in the end (delta: 39.8 MB). Free memory was 79.9 MB in the beginning and 89.1 MB in the end (delta: -9.2 MB). Peak memory consumption was 79.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 8111.01 ms. Allocated memory was 146.8 MB in the beginning and 289.4 MB in the end (delta: 142.6 MB). Free memory was 88.1 MB in the beginning and 99.0 MB in the end (delta: -10.9 MB). Peak memory consumption was 131.7 MB. Max. memory is 16.1 GB. * Witness Printer took 251.36 ms. Allocated memory is still 289.4 MB. Free memory was 99.0 MB in the beginning and 233.1 MB in the end (delta: -134.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 3]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 3]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 3]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 3]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 3]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 3]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 3]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 3]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 3]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 3]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 3]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 3]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 3]: 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: 3]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 3]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 3]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 3]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 3]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 3]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 3]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 3]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 3]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 3]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 3]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 3]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 3]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 3]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 3]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 3]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 3]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 3]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 3]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 3]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 3]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 3]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 3]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 3]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 3]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 3]: 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: 8.0s, OverallIterations: 39, TraceHistogramMax: 1, AutomataDifference: 4.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 7331 SDtfs, 5852 SDslu, 7165 SDs, 0 SdLazy, 3056 SolverSat, 388 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 221 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 149 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=279occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 39 MinimizatonAttempts, 594 StatesRemovedByMinimization, 21 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 987 NumberOfCodeBlocks, 987 NumberOfCodeBlocksAsserted, 39 NumberOfCheckSat, 948 ConstructedInterpolants, 0 QuantifiedInterpolants, 84395 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 39 InterpolantComputations, 39 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...