./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/forester-heap/dll-01-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_0a8abcbc-8563-48ba-bb42-ea5dd2269fc9/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_0a8abcbc-8563-48ba-bb42-ea5dd2269fc9/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0a8abcbc-8563-48ba-bb42-ea5dd2269fc9/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0a8abcbc-8563-48ba-bb42-ea5dd2269fc9/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/forester-heap/dll-01-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_0a8abcbc-8563-48ba-bb42-ea5dd2269fc9/bin/utaipan/config/svcomp-MemCleanup-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0a8abcbc-8563-48ba-bb42-ea5dd2269fc9/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cdf63a831807312c569006a76efbe1414243703d ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-memcleanup) --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-22 13:06:34,874 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 13:06:34,876 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 13:06:34,939 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 13:06:34,940 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 13:06:34,941 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 13:06:34,943 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 13:06:34,959 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 13:06:34,962 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 13:06:34,963 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 13:06:34,964 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 13:06:34,965 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 13:06:34,966 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 13:06:34,967 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 13:06:34,968 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 13:06:34,970 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 13:06:34,971 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 13:06:34,972 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 13:06:34,992 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 13:06:34,998 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 13:06:35,005 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 13:06:35,007 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 13:06:35,008 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 13:06:35,010 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 13:06:35,013 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 13:06:35,015 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 13:06:35,016 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 13:06:35,018 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 13:06:35,018 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 13:06:35,019 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 13:06:35,020 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 13:06:35,021 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 13:06:35,023 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 13:06:35,024 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 13:06:35,025 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 13:06:35,025 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 13:06:35,026 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 13:06:35,026 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 13:06:35,027 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 13:06:35,028 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 13:06:35,028 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 13:06:35,031 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0a8abcbc-8563-48ba-bb42-ea5dd2269fc9/bin/utaipan/config/svcomp-MemCleanup-32bit-Taipan_Default.epf [2020-11-22 13:06:35,086 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 13:06:35,088 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 13:06:35,090 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 13:06:35,090 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 13:06:35,090 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 13:06:35,091 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 13:06:35,091 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-22 13:06:35,091 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 13:06:35,091 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 13:06:35,092 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-22 13:06:35,093 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-22 13:06:35,093 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 13:06:35,093 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-22 13:06:35,094 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-22 13:06:35,094 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-22 13:06:35,095 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-22 13:06:35,095 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-22 13:06:35,095 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 13:06:35,095 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 13:06:35,096 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-22 13:06:35,096 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-22 13:06:35,096 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 13:06:35,096 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 13:06:35,097 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-22 13:06:35,097 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-22 13:06:35,097 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 13:06:35,097 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 13:06:35,098 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 13:06:35,098 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 13:06:35,098 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 13:06:35,098 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 13:06:35,099 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 13:06:35,099 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:06:35,099 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 13:06:35,099 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 13:06:35,100 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-22 13:06:35,100 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-22 13:06:35,100 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 13:06:35,100 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 13:06:35,101 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_0a8abcbc-8563-48ba-bb42-ea5dd2269fc9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_0a8abcbc-8563-48ba-bb42-ea5dd2269fc9/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cdf63a831807312c569006a76efbe1414243703d [2020-11-22 13:06:35,368 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 13:06:35,402 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 13:06:35,404 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 13:06:35,405 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 13:06:35,406 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 13:06:35,407 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0a8abcbc-8563-48ba-bb42-ea5dd2269fc9/bin/utaipan/../../sv-benchmarks/c/forester-heap/dll-01-1.i [2020-11-22 13:06:35,488 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0a8abcbc-8563-48ba-bb42-ea5dd2269fc9/bin/utaipan/data/ea67d7eb0/80e7881d6c62405793df0823b8a65186/FLAG1c9791bb9 [2020-11-22 13:06:36,078 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 13:06:36,078 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0a8abcbc-8563-48ba-bb42-ea5dd2269fc9/sv-benchmarks/c/forester-heap/dll-01-1.i [2020-11-22 13:06:36,094 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0a8abcbc-8563-48ba-bb42-ea5dd2269fc9/bin/utaipan/data/ea67d7eb0/80e7881d6c62405793df0823b8a65186/FLAG1c9791bb9 [2020-11-22 13:06:36,388 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0a8abcbc-8563-48ba-bb42-ea5dd2269fc9/bin/utaipan/data/ea67d7eb0/80e7881d6c62405793df0823b8a65186 [2020-11-22 13:06:36,390 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 13:06:36,391 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 13:06:36,393 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 13:06:36,393 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 13:06:36,403 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 13:06:36,403 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:06:36" (1/1) ... [2020-11-22 13:06:36,405 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66327c54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:36, skipping insertion in model container [2020-11-22 13:06:36,406 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:06:36" (1/1) ... [2020-11-22 13:06:36,414 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 13:06:36,469 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:06:36,793 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:06:36,812 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 13:06:36,884 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:06:36,959 INFO L208 MainTranslator]: Completed translation [2020-11-22 13:06:36,960 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:36 WrapperNode [2020-11-22 13:06:36,961 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 13:06:36,962 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 13:06:36,962 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 13:06:36,962 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 13:06:36,970 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:36" (1/1) ... [2020-11-22 13:06:36,986 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:36" (1/1) ... [2020-11-22 13:06:37,025 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 13:06:37,026 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 13:06:37,026 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 13:06:37,026 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 13:06:37,034 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:36" (1/1) ... [2020-11-22 13:06:37,034 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:36" (1/1) ... [2020-11-22 13:06:37,039 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:36" (1/1) ... [2020-11-22 13:06:37,039 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:36" (1/1) ... [2020-11-22 13:06:37,056 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:36" (1/1) ... [2020-11-22 13:06:37,065 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:36" (1/1) ... [2020-11-22 13:06:37,075 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:36" (1/1) ... [2020-11-22 13:06:37,089 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 13:06:37,092 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 13:06:37,092 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 13:06:37,093 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 13:06:37,094 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:36" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0a8abcbc-8563-48ba-bb42-ea5dd2269fc9/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 [2020-11-22 13:06:37,155 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-22 13:06:37,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-22 13:06:37,155 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 13:06:37,155 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-22 13:06:37,155 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-22 13:06:37,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-22 13:06:37,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 13:06:37,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 13:06:38,200 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 13:06:38,200 INFO L298 CfgBuilder]: Removed 60 assume(true) statements. [2020-11-22 13:06:38,203 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:06:38 BoogieIcfgContainer [2020-11-22 13:06:38,203 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 13:06:38,204 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 13:06:38,205 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 13:06:38,209 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 13:06:38,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:06:36" (1/3) ... [2020-11-22 13:06:38,210 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52ad14ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:06:38, skipping insertion in model container [2020-11-22 13:06:38,210 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:36" (2/3) ... [2020-11-22 13:06:38,210 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52ad14ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:06:38, skipping insertion in model container [2020-11-22 13:06:38,210 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:06:38" (3/3) ... [2020-11-22 13:06:38,211 INFO L111 eAbstractionObserver]: Analyzing ICFG dll-01-1.i [2020-11-22 13:06:38,219 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 13:06:38,222 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 84 error locations. [2020-11-22 13:06:38,238 INFO L253 AbstractCegarLoop]: Starting to check reachability of 84 error locations. [2020-11-22 13:06:38,273 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 13:06:38,273 INFO L378 AbstractCegarLoop]: Hoare is false [2020-11-22 13:06:38,273 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 13:06:38,273 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 13:06:38,274 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 13:06:38,274 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 13:06:38,274 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 13:06:38,274 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 13:06:38,309 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states. [2020-11-22 13:06:38,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2020-11-22 13:06:38,318 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:06:38,318 INFO L422 BasicCegarLoop]: trace histogram [1, 1] [2020-11-22 13:06:38,319 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr66REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr80ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr64REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr75ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr70REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr79REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr71ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr83ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr67REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr74ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr65REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr82ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr77ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr73REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr69REQUIRES_VIOLATION, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr81ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr78REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr76ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr60ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-11-22 13:06:38,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:06:38,325 INFO L82 PathProgramCache]: Analyzing trace with hash 17767, now seen corresponding path program 1 times [2020-11-22 13:06:38,333 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:06:38,334 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576648919] [2020-11-22 13:06:38,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:06:38,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:06:38,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:06:38,483 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576648919] [2020-11-22 13:06:38,483 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:06:38,484 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-22 13:06:38,484 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907029110] [2020-11-22 13:06:38,488 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-22 13:06:38,489 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:06:38,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-22 13:06:38,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 13:06:38,505 INFO L87 Difference]: Start difference. First operand 204 states. Second operand 3 states. [2020-11-22 13:06:38,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:06:38,747 INFO L93 Difference]: Finished difference Result 190 states and 198 transitions. [2020-11-22 13:06:38,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 13:06:38,749 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 2 [2020-11-22 13:06:38,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:06:38,763 INFO L225 Difference]: With dead ends: 190 [2020-11-22 13:06:38,763 INFO L226 Difference]: Without dead ends: 188 [2020-11-22 13:06:38,765 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 [2020-11-22 13:06:38,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2020-11-22 13:06:38,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 184. [2020-11-22 13:06:38,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 184 states. [2020-11-22 13:06:38,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 195 transitions. [2020-11-22 13:06:38,845 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 195 transitions. Word has length 2 [2020-11-22 13:06:38,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:06:38,845 INFO L481 AbstractCegarLoop]: Abstraction has 184 states and 195 transitions. [2020-11-22 13:06:38,845 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-22 13:06:38,846 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 195 transitions. [2020-11-22 13:06:38,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2020-11-22 13:06:38,846 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:06:38,846 INFO L422 BasicCegarLoop]: trace histogram [1, 1] [2020-11-22 13:06:38,847 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-22 13:06:38,848 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr66REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr80ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr64REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr75ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr70REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr79REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr71ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr83ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr67REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr74ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr65REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr82ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr77ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr73REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr69REQUIRES_VIOLATION, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr81ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr78REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr76ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr60ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-11-22 13:06:38,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:06:38,851 INFO L82 PathProgramCache]: Analyzing trace with hash 17768, now seen corresponding path program 1 times [2020-11-22 13:06:38,852 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:06:38,852 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511595746] [2020-11-22 13:06:38,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:06:38,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:06:38,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:06:38,933 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511595746] [2020-11-22 13:06:38,933 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:06:38,933 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-22 13:06:38,933 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48848708] [2020-11-22 13:06:38,934 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-22 13:06:38,934 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:06:38,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-22 13:06:38,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 13:06:38,936 INFO L87 Difference]: Start difference. First operand 184 states and 195 transitions. Second operand 3 states. [2020-11-22 13:06:39,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:06:39,146 INFO L93 Difference]: Finished difference Result 213 states and 223 transitions. [2020-11-22 13:06:39,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 13:06:39,146 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 2 [2020-11-22 13:06:39,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:06:39,150 INFO L225 Difference]: With dead ends: 213 [2020-11-22 13:06:39,151 INFO L226 Difference]: Without dead ends: 213 [2020-11-22 13:06:39,151 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 [2020-11-22 13:06:39,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2020-11-22 13:06:39,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 191. [2020-11-22 13:06:39,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2020-11-22 13:06:39,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 213 transitions. [2020-11-22 13:06:39,168 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 213 transitions. Word has length 2 [2020-11-22 13:06:39,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:06:39,169 INFO L481 AbstractCegarLoop]: Abstraction has 191 states and 213 transitions. [2020-11-22 13:06:39,169 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-22 13:06:39,169 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 213 transitions. [2020-11-22 13:06:39,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-22 13:06:39,170 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:06:39,170 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-22 13:06:39,170 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-22 13:06:39,170 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr66REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr80ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr64REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr75ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr70REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr79REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr71ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr83ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr67REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr74ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr65REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr82ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr77ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr73REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr69REQUIRES_VIOLATION, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr81ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr78REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr76ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr60ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-11-22 13:06:39,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:06:39,171 INFO L82 PathProgramCache]: Analyzing trace with hash -772402289, now seen corresponding path program 1 times [2020-11-22 13:06:39,172 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:06:39,172 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12519095] [2020-11-22 13:06:39,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:06:39,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:06:39,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:06:39,231 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12519095] [2020-11-22 13:06:39,231 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:06:39,231 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-22 13:06:39,231 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084840204] [2020-11-22 13:06:39,232 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-22 13:06:39,232 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:06:39,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-22 13:06:39,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 13:06:39,233 INFO L87 Difference]: Start difference. First operand 191 states and 213 transitions. Second operand 3 states. [2020-11-22 13:06:39,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:06:39,293 INFO L93 Difference]: Finished difference Result 208 states and 218 transitions. [2020-11-22 13:06:39,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 13:06:39,294 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-11-22 13:06:39,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:06:39,296 INFO L225 Difference]: With dead ends: 208 [2020-11-22 13:06:39,296 INFO L226 Difference]: Without dead ends: 208 [2020-11-22 13:06:39,297 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 [2020-11-22 13:06:39,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2020-11-22 13:06:39,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 188. [2020-11-22 13:06:39,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 188 states. [2020-11-22 13:06:39,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 209 transitions. [2020-11-22 13:06:39,313 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 209 transitions. Word has length 6 [2020-11-22 13:06:39,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:06:39,314 INFO L481 AbstractCegarLoop]: Abstraction has 188 states and 209 transitions. [2020-11-22 13:06:39,314 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-22 13:06:39,314 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 209 transitions. [2020-11-22 13:06:39,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-22 13:06:39,315 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:06:39,315 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:06:39,315 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-22 13:06:39,316 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr66REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr80ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr64REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr75ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr70REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr79REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr71ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr83ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr67REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr74ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr65REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr82ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr77ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr73REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr69REQUIRES_VIOLATION, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr81ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr78REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr76ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr60ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-11-22 13:06:39,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:06:39,317 INFO L82 PathProgramCache]: Analyzing trace with hash 1382137315, now seen corresponding path program 1 times [2020-11-22 13:06:39,318 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:06:39,318 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040911360] [2020-11-22 13:06:39,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:06:39,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:06:39,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:06:39,417 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040911360] [2020-11-22 13:06:39,418 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:06:39,418 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-22 13:06:39,418 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382291161] [2020-11-22 13:06:39,418 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 13:06:39,418 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:06:39,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 13:06:39,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-22 13:06:39,419 INFO L87 Difference]: Start difference. First operand 188 states and 209 transitions. Second operand 5 states. [2020-11-22 13:06:39,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:06:39,800 INFO L93 Difference]: Finished difference Result 333 states and 361 transitions. [2020-11-22 13:06:39,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-22 13:06:39,801 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-11-22 13:06:39,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:06:39,803 INFO L225 Difference]: With dead ends: 333 [2020-11-22 13:06:39,803 INFO L226 Difference]: Without dead ends: 333 [2020-11-22 13:06:39,803 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-22 13:06:39,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2020-11-22 13:06:39,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 187. [2020-11-22 13:06:39,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187 states. [2020-11-22 13:06:39,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 208 transitions. [2020-11-22 13:06:39,813 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 208 transitions. Word has length 10 [2020-11-22 13:06:39,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:06:39,814 INFO L481 AbstractCegarLoop]: Abstraction has 187 states and 208 transitions. [2020-11-22 13:06:39,814 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 13:06:39,814 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 208 transitions. [2020-11-22 13:06:39,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-22 13:06:39,815 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:06:39,815 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:06:39,815 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-22 13:06:39,816 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr66REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr80ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr64REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr75ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr70REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr79REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr71ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr83ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr67REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr74ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr65REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr82ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr77ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr73REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr69REQUIRES_VIOLATION, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr81ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr78REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr76ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr60ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-11-22 13:06:39,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:06:39,816 INFO L82 PathProgramCache]: Analyzing trace with hash 1382137316, now seen corresponding path program 1 times [2020-11-22 13:06:39,817 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:06:39,817 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058586675] [2020-11-22 13:06:39,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:06:39,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:06:39,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:06:39,904 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058586675] [2020-11-22 13:06:39,905 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:06:39,905 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-22 13:06:39,905 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352477353] [2020-11-22 13:06:39,905 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 13:06:39,905 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:06:39,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 13:06:39,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-22 13:06:39,906 INFO L87 Difference]: Start difference. First operand 187 states and 208 transitions. Second operand 5 states. [2020-11-22 13:06:40,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:06:40,341 INFO L93 Difference]: Finished difference Result 357 states and 398 transitions. [2020-11-22 13:06:40,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-22 13:06:40,342 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-11-22 13:06:40,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:06:40,344 INFO L225 Difference]: With dead ends: 357 [2020-11-22 13:06:40,344 INFO L226 Difference]: Without dead ends: 357 [2020-11-22 13:06:40,345 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-22 13:06:40,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2020-11-22 13:06:40,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 186. [2020-11-22 13:06:40,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 186 states. [2020-11-22 13:06:40,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 207 transitions. [2020-11-22 13:06:40,362 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 207 transitions. Word has length 10 [2020-11-22 13:06:40,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:06:40,362 INFO L481 AbstractCegarLoop]: Abstraction has 186 states and 207 transitions. [2020-11-22 13:06:40,363 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 13:06:40,363 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 207 transitions. [2020-11-22 13:06:40,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-22 13:06:40,363 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:06:40,363 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:06:40,364 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-22 13:06:40,364 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr66REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr80ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr64REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr75ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr70REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr79REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr71ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr83ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr67REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr74ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr65REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr82ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr77ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr73REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr69REQUIRES_VIOLATION, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr81ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr78REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr76ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr60ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-11-22 13:06:40,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:06:40,365 INFO L82 PathProgramCache]: Analyzing trace with hash 1089532075, now seen corresponding path program 1 times [2020-11-22 13:06:40,365 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:06:40,365 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2821448] [2020-11-22 13:06:40,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:06:40,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:06:40,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:06:40,514 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2821448] [2020-11-22 13:06:40,514 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:06:40,514 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-22 13:06:40,515 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826036659] [2020-11-22 13:06:40,515 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-22 13:06:40,515 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:06:40,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-22 13:06:40,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-11-22 13:06:40,516 INFO L87 Difference]: Start difference. First operand 186 states and 207 transitions. Second operand 8 states. [2020-11-22 13:06:41,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:06:41,263 INFO L93 Difference]: Finished difference Result 332 states and 359 transitions. [2020-11-22 13:06:41,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-22 13:06:41,263 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 12 [2020-11-22 13:06:41,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:06:41,265 INFO L225 Difference]: With dead ends: 332 [2020-11-22 13:06:41,266 INFO L226 Difference]: Without dead ends: 332 [2020-11-22 13:06:41,266 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2020-11-22 13:06:41,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2020-11-22 13:06:41,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 185. [2020-11-22 13:06:41,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185 states. [2020-11-22 13:06:41,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 206 transitions. [2020-11-22 13:06:41,272 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 206 transitions. Word has length 12 [2020-11-22 13:06:41,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:06:41,272 INFO L481 AbstractCegarLoop]: Abstraction has 185 states and 206 transitions. [2020-11-22 13:06:41,272 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-22 13:06:41,276 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 206 transitions. [2020-11-22 13:06:41,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-22 13:06:41,277 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:06:41,277 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:06:41,277 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-22 13:06:41,277 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr66REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr80ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr64REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr75ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr70REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr79REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr71ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr83ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr67REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr74ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr65REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr82ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr77ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr73REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr69REQUIRES_VIOLATION, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr81ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr78REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr76ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr60ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-11-22 13:06:41,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:06:41,278 INFO L82 PathProgramCache]: Analyzing trace with hash 1089532076, now seen corresponding path program 1 times [2020-11-22 13:06:41,279 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:06:41,279 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109256413] [2020-11-22 13:06:41,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:06:41,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:06:41,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:06:41,471 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109256413] [2020-11-22 13:06:41,471 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:06:41,471 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-22 13:06:41,471 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784711385] [2020-11-22 13:06:41,472 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-22 13:06:41,472 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:06:41,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-22 13:06:41,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-11-22 13:06:41,474 INFO L87 Difference]: Start difference. First operand 185 states and 206 transitions. Second operand 8 states. [2020-11-22 13:06:42,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:06:42,509 INFO L93 Difference]: Finished difference Result 333 states and 360 transitions. [2020-11-22 13:06:42,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-22 13:06:42,510 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 12 [2020-11-22 13:06:42,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:06:42,512 INFO L225 Difference]: With dead ends: 333 [2020-11-22 13:06:42,513 INFO L226 Difference]: Without dead ends: 333 [2020-11-22 13:06:42,513 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2020-11-22 13:06:42,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2020-11-22 13:06:42,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 184. [2020-11-22 13:06:42,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 184 states. [2020-11-22 13:06:42,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 205 transitions. [2020-11-22 13:06:42,518 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 205 transitions. Word has length 12 [2020-11-22 13:06:42,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:06:42,519 INFO L481 AbstractCegarLoop]: Abstraction has 184 states and 205 transitions. [2020-11-22 13:06:42,519 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-22 13:06:42,519 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 205 transitions. [2020-11-22 13:06:42,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-22 13:06:42,519 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:06:42,520 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:06:42,520 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-22 13:06:42,528 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr66REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr80ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr64REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr75ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr70REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr79REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr71ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr83ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr67REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr74ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr65REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr82ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr77ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr73REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr69REQUIRES_VIOLATION, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr81ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr78REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr76ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr60ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-11-22 13:06:42,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:06:42,529 INFO L82 PathProgramCache]: Analyzing trace with hash -426624919, now seen corresponding path program 1 times [2020-11-22 13:06:42,529 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:06:42,530 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918763313] [2020-11-22 13:06:42,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:06:42,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:06:42,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:06:42,560 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918763313] [2020-11-22 13:06:42,560 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:06:42,560 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-22 13:06:42,561 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056550513] [2020-11-22 13:06:42,561 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-22 13:06:42,561 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:06:42,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-22 13:06:42,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 13:06:42,562 INFO L87 Difference]: Start difference. First operand 184 states and 205 transitions. Second operand 3 states. [2020-11-22 13:06:42,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:06:42,581 INFO L93 Difference]: Finished difference Result 185 states and 206 transitions. [2020-11-22 13:06:42,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 13:06:42,582 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-11-22 13:06:42,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:06:42,583 INFO L225 Difference]: With dead ends: 185 [2020-11-22 13:06:42,583 INFO L226 Difference]: Without dead ends: 185 [2020-11-22 13:06:42,583 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 [2020-11-22 13:06:42,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2020-11-22 13:06:42,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 185. [2020-11-22 13:06:42,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185 states. [2020-11-22 13:06:42,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 206 transitions. [2020-11-22 13:06:42,588 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 206 transitions. Word has length 13 [2020-11-22 13:06:42,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:06:42,589 INFO L481 AbstractCegarLoop]: Abstraction has 185 states and 206 transitions. [2020-11-22 13:06:42,589 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-22 13:06:42,589 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 206 transitions. [2020-11-22 13:06:42,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-22 13:06:42,590 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:06:42,590 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:06:42,591 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-22 13:06:42,591 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr66REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr80ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr64REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr75ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr70REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr79REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr71ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr83ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr67REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr74ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr65REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr82ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr77ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr73REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr69REQUIRES_VIOLATION, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr81ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr78REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr76ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr60ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-11-22 13:06:42,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:06:42,592 INFO L82 PathProgramCache]: Analyzing trace with hash -324686122, now seen corresponding path program 1 times [2020-11-22 13:06:42,592 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:06:42,592 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724480407] [2020-11-22 13:06:42,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:06:42,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:06:42,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:06:42,658 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724480407] [2020-11-22 13:06:42,659 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:06:42,659 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-22 13:06:42,659 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296811700] [2020-11-22 13:06:42,659 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 13:06:42,660 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:06:42,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 13:06:42,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-22 13:06:42,660 INFO L87 Difference]: Start difference. First operand 185 states and 206 transitions. Second operand 5 states. [2020-11-22 13:06:42,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:06:42,811 INFO L93 Difference]: Finished difference Result 272 states and 298 transitions. [2020-11-22 13:06:42,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-22 13:06:42,812 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-11-22 13:06:42,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:06:42,813 INFO L225 Difference]: With dead ends: 272 [2020-11-22 13:06:42,813 INFO L226 Difference]: Without dead ends: 272 [2020-11-22 13:06:42,814 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 [2020-11-22 13:06:42,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2020-11-22 13:06:42,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 181. [2020-11-22 13:06:42,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2020-11-22 13:06:42,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 202 transitions. [2020-11-22 13:06:42,826 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 202 transitions. Word has length 14 [2020-11-22 13:06:42,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:06:42,826 INFO L481 AbstractCegarLoop]: Abstraction has 181 states and 202 transitions. [2020-11-22 13:06:42,826 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 13:06:42,827 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 202 transitions. [2020-11-22 13:06:42,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-22 13:06:42,827 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:06:42,828 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:06:42,828 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-22 13:06:42,828 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr66REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr80ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr64REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr75ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr70REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr79REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr71ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr83ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr67REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr74ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr65REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr82ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr77ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr73REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr69REQUIRES_VIOLATION, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr81ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr78REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr76ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr60ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-11-22 13:06:42,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:06:42,829 INFO L82 PathProgramCache]: Analyzing trace with hash -450056685, now seen corresponding path program 1 times [2020-11-22 13:06:42,829 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:06:42,829 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544359912] [2020-11-22 13:06:42,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:06:42,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:06:42,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:06:42,887 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544359912] [2020-11-22 13:06:42,888 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:06:42,888 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-22 13:06:42,888 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919192652] [2020-11-22 13:06:42,888 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 13:06:42,888 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:06:42,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 13:06:42,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:06:42,889 INFO L87 Difference]: Start difference. First operand 181 states and 202 transitions. Second operand 4 states. [2020-11-22 13:06:43,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:06:43,043 INFO L93 Difference]: Finished difference Result 272 states and 297 transitions. [2020-11-22 13:06:43,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-22 13:06:43,044 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-11-22 13:06:43,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:06:43,046 INFO L225 Difference]: With dead ends: 272 [2020-11-22 13:06:43,046 INFO L226 Difference]: Without dead ends: 272 [2020-11-22 13:06:43,046 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 [2020-11-22 13:06:43,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2020-11-22 13:06:43,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 183. [2020-11-22 13:06:43,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183 states. [2020-11-22 13:06:43,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 204 transitions. [2020-11-22 13:06:43,050 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 204 transitions. Word has length 16 [2020-11-22 13:06:43,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:06:43,050 INFO L481 AbstractCegarLoop]: Abstraction has 183 states and 204 transitions. [2020-11-22 13:06:43,050 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 13:06:43,051 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 204 transitions. [2020-11-22 13:06:43,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-22 13:06:43,051 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:06:43,051 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:06:43,051 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-22 13:06:43,052 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr66REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr80ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr64REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr75ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr70REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr79REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr71ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr83ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr67REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr74ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr65REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr82ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr77ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr73REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr69REQUIRES_VIOLATION, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr81ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr78REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr76ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr60ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-11-22 13:06:43,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:06:43,052 INFO L82 PathProgramCache]: Analyzing trace with hash -133233530, now seen corresponding path program 1 times [2020-11-22 13:06:43,053 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:06:43,053 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316340450] [2020-11-22 13:06:43,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:06:43,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:06:43,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:06:43,140 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316340450] [2020-11-22 13:06:43,140 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:06:43,140 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-22 13:06:43,141 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579106828] [2020-11-22 13:06:43,141 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 13:06:43,141 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:06:43,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 13:06:43,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-22 13:06:43,142 INFO L87 Difference]: Start difference. First operand 183 states and 204 transitions. Second operand 5 states. [2020-11-22 13:06:43,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:06:43,456 INFO L93 Difference]: Finished difference Result 252 states and 265 transitions. [2020-11-22 13:06:43,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-22 13:06:43,457 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-11-22 13:06:43,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:06:43,458 INFO L225 Difference]: With dead ends: 252 [2020-11-22 13:06:43,458 INFO L226 Difference]: Without dead ends: 252 [2020-11-22 13:06:43,458 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-11-22 13:06:43,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2020-11-22 13:06:43,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 204. [2020-11-22 13:06:43,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 204 states. [2020-11-22 13:06:43,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 245 transitions. [2020-11-22 13:06:43,469 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 245 transitions. Word has length 17 [2020-11-22 13:06:43,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:06:43,469 INFO L481 AbstractCegarLoop]: Abstraction has 204 states and 245 transitions. [2020-11-22 13:06:43,469 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 13:06:43,469 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 245 transitions. [2020-11-22 13:06:43,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-22 13:06:43,470 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:06:43,470 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:06:43,470 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-22 13:06:43,471 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr66REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr80ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr64REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr75ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr70REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr79REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr71ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr83ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr67REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr74ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr65REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr82ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr77ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr73REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr69REQUIRES_VIOLATION, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr81ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr78REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr76ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr60ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-11-22 13:06:43,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:06:43,471 INFO L82 PathProgramCache]: Analyzing trace with hash -133233531, now seen corresponding path program 1 times [2020-11-22 13:06:43,471 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:06:43,472 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075288255] [2020-11-22 13:06:43,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:06:43,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:06:43,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:06:43,536 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075288255] [2020-11-22 13:06:43,537 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:06:43,537 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-22 13:06:43,537 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062051920] [2020-11-22 13:06:43,537 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 13:06:43,537 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:06:43,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 13:06:43,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:06:43,538 INFO L87 Difference]: Start difference. First operand 204 states and 245 transitions. Second operand 4 states. [2020-11-22 13:06:43,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:06:43,751 INFO L93 Difference]: Finished difference Result 195 states and 228 transitions. [2020-11-22 13:06:43,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-22 13:06:43,752 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-11-22 13:06:43,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:06:43,753 INFO L225 Difference]: With dead ends: 195 [2020-11-22 13:06:43,753 INFO L226 Difference]: Without dead ends: 195 [2020-11-22 13:06:43,754 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 [2020-11-22 13:06:43,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2020-11-22 13:06:43,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 192. [2020-11-22 13:06:43,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 192 states. [2020-11-22 13:06:43,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 226 transitions. [2020-11-22 13:06:43,759 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 226 transitions. Word has length 17 [2020-11-22 13:06:43,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:06:43,759 INFO L481 AbstractCegarLoop]: Abstraction has 192 states and 226 transitions. [2020-11-22 13:06:43,759 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 13:06:43,759 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 226 transitions. [2020-11-22 13:06:43,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-22 13:06:43,768 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:06:43,768 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:06:43,768 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-11-22 13:06:43,769 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr66REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr80ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr64REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr75ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr70REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr79REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr71ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr83ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr67REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr74ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr65REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr82ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr77ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr73REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr69REQUIRES_VIOLATION, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr81ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr78REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr76ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr60ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-11-22 13:06:43,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:06:43,769 INFO L82 PathProgramCache]: Analyzing trace with hash 811598248, now seen corresponding path program 1 times [2020-11-22 13:06:43,769 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:06:43,770 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463489827] [2020-11-22 13:06:43,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:06:43,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:06:43,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:06:43,830 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463489827] [2020-11-22 13:06:43,831 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:06:43,831 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-22 13:06:43,831 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123411396] [2020-11-22 13:06:43,831 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 13:06:43,831 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:06:43,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 13:06:43,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-22 13:06:43,832 INFO L87 Difference]: Start difference. First operand 192 states and 226 transitions. Second operand 5 states. [2020-11-22 13:06:44,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:06:44,062 INFO L93 Difference]: Finished difference Result 281 states and 329 transitions. [2020-11-22 13:06:44,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-22 13:06:44,068 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2020-11-22 13:06:44,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:06:44,070 INFO L225 Difference]: With dead ends: 281 [2020-11-22 13:06:44,070 INFO L226 Difference]: Without dead ends: 281 [2020-11-22 13:06:44,071 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-22 13:06:44,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2020-11-22 13:06:44,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 191. [2020-11-22 13:06:44,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2020-11-22 13:06:44,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 224 transitions. [2020-11-22 13:06:44,076 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 224 transitions. Word has length 19 [2020-11-22 13:06:44,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:06:44,077 INFO L481 AbstractCegarLoop]: Abstraction has 191 states and 224 transitions. [2020-11-22 13:06:44,077 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 13:06:44,077 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 224 transitions. [2020-11-22 13:06:44,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-22 13:06:44,078 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:06:44,078 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:06:44,078 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-11-22 13:06:44,078 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr66REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr80ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr64REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr75ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr70REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr79REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr71ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr83ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr67REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr74ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr65REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr82ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr77ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr73REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr69REQUIRES_VIOLATION, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr81ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr78REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr76ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr60ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-11-22 13:06:44,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:06:44,079 INFO L82 PathProgramCache]: Analyzing trace with hash 811598249, now seen corresponding path program 1 times [2020-11-22 13:06:44,079 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:06:44,079 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592741318] [2020-11-22 13:06:44,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:06:44,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:06:44,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:06:44,168 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592741318] [2020-11-22 13:06:44,168 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:06:44,168 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-22 13:06:44,168 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668345473] [2020-11-22 13:06:44,169 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 13:06:44,169 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:06:44,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 13:06:44,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-22 13:06:44,169 INFO L87 Difference]: Start difference. First operand 191 states and 224 transitions. Second operand 5 states. [2020-11-22 13:06:44,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:06:44,411 INFO L93 Difference]: Finished difference Result 305 states and 363 transitions. [2020-11-22 13:06:44,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-22 13:06:44,412 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2020-11-22 13:06:44,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:06:44,414 INFO L225 Difference]: With dead ends: 305 [2020-11-22 13:06:44,414 INFO L226 Difference]: Without dead ends: 305 [2020-11-22 13:06:44,414 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-22 13:06:44,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2020-11-22 13:06:44,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 190. [2020-11-22 13:06:44,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190 states. [2020-11-22 13:06:44,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 222 transitions. [2020-11-22 13:06:44,420 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 222 transitions. Word has length 19 [2020-11-22 13:06:44,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:06:44,420 INFO L481 AbstractCegarLoop]: Abstraction has 190 states and 222 transitions. [2020-11-22 13:06:44,420 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 13:06:44,421 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 222 transitions. [2020-11-22 13:06:44,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-22 13:06:44,421 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:06:44,421 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] [2020-11-22 13:06:44,422 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-11-22 13:06:44,422 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr66REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr80ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr64REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr75ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr70REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr79REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr71ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr83ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr67REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr74ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr65REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr82ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr77ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr73REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr69REQUIRES_VIOLATION, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr81ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr78REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr76ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr60ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-11-22 13:06:44,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:06:44,422 INFO L82 PathProgramCache]: Analyzing trace with hash -607976945, now seen corresponding path program 1 times [2020-11-22 13:06:44,423 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:06:44,423 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529285195] [2020-11-22 13:06:44,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:06:44,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:06:44,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:06:44,472 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529285195] [2020-11-22 13:06:44,472 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:06:44,472 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-22 13:06:44,472 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997732215] [2020-11-22 13:06:44,472 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 13:06:44,473 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:06:44,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 13:06:44,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:06:44,473 INFO L87 Difference]: Start difference. First operand 190 states and 222 transitions. Second operand 4 states. [2020-11-22 13:06:44,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:06:44,592 INFO L93 Difference]: Finished difference Result 224 states and 236 transitions. [2020-11-22 13:06:44,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-22 13:06:44,592 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-11-22 13:06:44,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:06:44,594 INFO L225 Difference]: With dead ends: 224 [2020-11-22 13:06:44,594 INFO L226 Difference]: Without dead ends: 224 [2020-11-22 13:06:44,594 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 [2020-11-22 13:06:44,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2020-11-22 13:06:44,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 187. [2020-11-22 13:06:44,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187 states. [2020-11-22 13:06:44,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 218 transitions. [2020-11-22 13:06:44,599 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 218 transitions. Word has length 20 [2020-11-22 13:06:44,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:06:44,600 INFO L481 AbstractCegarLoop]: Abstraction has 187 states and 218 transitions. [2020-11-22 13:06:44,600 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 13:06:44,600 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 218 transitions. [2020-11-22 13:06:44,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-22 13:06:44,600 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:06:44,601 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] [2020-11-22 13:06:44,601 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-11-22 13:06:44,601 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr66REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr80ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr64REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr75ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr70REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr79REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr71ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr83ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr67REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr74ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr65REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr82ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr77ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr73REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr69REQUIRES_VIOLATION, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr81ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr78REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr76ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr60ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-11-22 13:06:44,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:06:44,601 INFO L82 PathProgramCache]: Analyzing trace with hash -1737709261, now seen corresponding path program 1 times [2020-11-22 13:06:44,602 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:06:44,602 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657669647] [2020-11-22 13:06:44,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:06:44,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:06:44,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:06:44,686 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657669647] [2020-11-22 13:06:44,686 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:06:44,686 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-22 13:06:44,686 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247982490] [2020-11-22 13:06:44,687 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-22 13:06:44,687 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:06:44,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-22 13:06:44,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-11-22 13:06:44,688 INFO L87 Difference]: Start difference. First operand 187 states and 218 transitions. Second operand 8 states. [2020-11-22 13:06:45,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:06:45,067 INFO L93 Difference]: Finished difference Result 187 states and 217 transitions. [2020-11-22 13:06:45,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-22 13:06:45,068 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 21 [2020-11-22 13:06:45,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:06:45,069 INFO L225 Difference]: With dead ends: 187 [2020-11-22 13:06:45,069 INFO L226 Difference]: Without dead ends: 187 [2020-11-22 13:06:45,069 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2020-11-22 13:06:45,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2020-11-22 13:06:45,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 186. [2020-11-22 13:06:45,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 186 states. [2020-11-22 13:06:45,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 217 transitions. [2020-11-22 13:06:45,073 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 217 transitions. Word has length 21 [2020-11-22 13:06:45,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:06:45,073 INFO L481 AbstractCegarLoop]: Abstraction has 186 states and 217 transitions. [2020-11-22 13:06:45,073 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-22 13:06:45,073 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 217 transitions. [2020-11-22 13:06:45,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-22 13:06:45,074 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:06:45,074 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] [2020-11-22 13:06:45,075 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-11-22 13:06:45,075 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr66REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr80ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr64REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr75ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr70REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr79REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr71ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr83ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr67REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr74ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr65REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr82ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr77ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr73REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr69REQUIRES_VIOLATION, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr81ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr78REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr76ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr60ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-11-22 13:06:45,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:06:45,076 INFO L82 PathProgramCache]: Analyzing trace with hash -1737709260, now seen corresponding path program 1 times [2020-11-22 13:06:45,076 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:06:45,076 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065347612] [2020-11-22 13:06:45,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:06:45,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:06:45,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:06:45,202 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065347612] [2020-11-22 13:06:45,202 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:06:45,202 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-22 13:06:45,202 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985816786] [2020-11-22 13:06:45,202 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-22 13:06:45,203 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:06:45,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-22 13:06:45,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-11-22 13:06:45,203 INFO L87 Difference]: Start difference. First operand 186 states and 217 transitions. Second operand 9 states. [2020-11-22 13:06:45,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:06:45,838 INFO L93 Difference]: Finished difference Result 178 states and 208 transitions. [2020-11-22 13:06:45,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-22 13:06:45,839 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2020-11-22 13:06:45,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:06:45,840 INFO L225 Difference]: With dead ends: 178 [2020-11-22 13:06:45,840 INFO L226 Difference]: Without dead ends: 178 [2020-11-22 13:06:45,840 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=207, Unknown=0, NotChecked=0, Total=306 [2020-11-22 13:06:45,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2020-11-22 13:06:45,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 170. [2020-11-22 13:06:45,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170 states. [2020-11-22 13:06:45,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 200 transitions. [2020-11-22 13:06:45,845 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 200 transitions. Word has length 21 [2020-11-22 13:06:45,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:06:45,845 INFO L481 AbstractCegarLoop]: Abstraction has 170 states and 200 transitions. [2020-11-22 13:06:45,845 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-22 13:06:45,845 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 200 transitions. [2020-11-22 13:06:45,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-22 13:06:45,846 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:06:45,846 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] [2020-11-22 13:06:45,846 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-11-22 13:06:45,847 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr66REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr80ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr64REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr75ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr70REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr79REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr71ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr83ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr67REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr74ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr65REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr82ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr77ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr73REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr69REQUIRES_VIOLATION, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr81ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr78REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr76ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr60ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-11-22 13:06:45,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:06:45,847 INFO L82 PathProgramCache]: Analyzing trace with hash -855674317, now seen corresponding path program 1 times [2020-11-22 13:06:45,847 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:06:45,848 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442942095] [2020-11-22 13:06:45,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:06:45,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:06:45,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:06:45,936 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442942095] [2020-11-22 13:06:45,936 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:06:45,936 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-22 13:06:45,936 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074419385] [2020-11-22 13:06:45,936 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-22 13:06:45,936 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:06:45,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-22 13:06:45,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-11-22 13:06:45,937 INFO L87 Difference]: Start difference. First operand 170 states and 200 transitions. Second operand 9 states. [2020-11-22 13:06:46,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:06:46,519 INFO L93 Difference]: Finished difference Result 172 states and 202 transitions. [2020-11-22 13:06:46,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-22 13:06:46,520 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 24 [2020-11-22 13:06:46,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:06:46,521 INFO L225 Difference]: With dead ends: 172 [2020-11-22 13:06:46,521 INFO L226 Difference]: Without dead ends: 172 [2020-11-22 13:06:46,522 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=207, Unknown=0, NotChecked=0, Total=306 [2020-11-22 13:06:46,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2020-11-22 13:06:46,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 164. [2020-11-22 13:06:46,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2020-11-22 13:06:46,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 194 transitions. [2020-11-22 13:06:46,527 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 194 transitions. Word has length 24 [2020-11-22 13:06:46,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:06:46,527 INFO L481 AbstractCegarLoop]: Abstraction has 164 states and 194 transitions. [2020-11-22 13:06:46,527 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-22 13:06:46,527 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 194 transitions. [2020-11-22 13:06:46,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-22 13:06:46,528 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:06:46,528 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] [2020-11-22 13:06:46,528 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-11-22 13:06:46,529 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr66REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr80ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr64REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr75ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr70REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr79REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr71ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr83ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr67REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr74ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr65REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr82ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr77ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr73REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr69REQUIRES_VIOLATION, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr81ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr78REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr76ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr60ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-11-22 13:06:46,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:06:46,529 INFO L82 PathProgramCache]: Analyzing trace with hash 1408746262, now seen corresponding path program 1 times [2020-11-22 13:06:46,529 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:06:46,529 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203348713] [2020-11-22 13:06:46,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:06:46,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:06:46,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:06:46,572 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203348713] [2020-11-22 13:06:46,573 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:06:46,573 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-22 13:06:46,573 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860271493] [2020-11-22 13:06:46,573 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-22 13:06:46,573 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:06:46,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-22 13:06:46,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 13:06:46,574 INFO L87 Difference]: Start difference. First operand 164 states and 194 transitions. Second operand 3 states. [2020-11-22 13:06:46,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:06:46,587 INFO L93 Difference]: Finished difference Result 232 states and 277 transitions. [2020-11-22 13:06:46,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 13:06:46,588 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-11-22 13:06:46,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:06:46,589 INFO L225 Difference]: With dead ends: 232 [2020-11-22 13:06:46,589 INFO L226 Difference]: Without dead ends: 232 [2020-11-22 13:06:46,590 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 [2020-11-22 13:06:46,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2020-11-22 13:06:46,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 168. [2020-11-22 13:06:46,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2020-11-22 13:06:46,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 200 transitions. [2020-11-22 13:06:46,594 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 200 transitions. Word has length 25 [2020-11-22 13:06:46,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:06:46,596 INFO L481 AbstractCegarLoop]: Abstraction has 168 states and 200 transitions. [2020-11-22 13:06:46,596 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-22 13:06:46,596 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 200 transitions. [2020-11-22 13:06:46,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-22 13:06:46,598 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:06:46,598 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] [2020-11-22 13:06:46,598 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-11-22 13:06:46,598 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr66REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr80ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr64REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr75ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr70REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr79REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr71ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr83ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr67REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr74ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr65REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr82ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr77ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr73REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr69REQUIRES_VIOLATION, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr81ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr78REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr76ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr60ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-11-22 13:06:46,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:06:46,599 INFO L82 PathProgramCache]: Analyzing trace with hash 1408732337, now seen corresponding path program 1 times [2020-11-22 13:06:46,599 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:06:46,599 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121086054] [2020-11-22 13:06:46,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:06:46,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:06:46,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:06:46,691 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121086054] [2020-11-22 13:06:46,692 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:06:46,692 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-22 13:06:46,692 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099635613] [2020-11-22 13:06:46,692 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-22 13:06:46,693 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:06:46,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-22 13:06:46,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-22 13:06:46,693 INFO L87 Difference]: Start difference. First operand 168 states and 200 transitions. Second operand 6 states. [2020-11-22 13:06:47,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:06:47,013 INFO L93 Difference]: Finished difference Result 270 states and 309 transitions. [2020-11-22 13:06:47,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-22 13:06:47,014 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2020-11-22 13:06:47,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:06:47,015 INFO L225 Difference]: With dead ends: 270 [2020-11-22 13:06:47,015 INFO L226 Difference]: Without dead ends: 270 [2020-11-22 13:06:47,016 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-11-22 13:06:47,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2020-11-22 13:06:47,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 179. [2020-11-22 13:06:47,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2020-11-22 13:06:47,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 212 transitions. [2020-11-22 13:06:47,020 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 212 transitions. Word has length 25 [2020-11-22 13:06:47,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:06:47,020 INFO L481 AbstractCegarLoop]: Abstraction has 179 states and 212 transitions. [2020-11-22 13:06:47,020 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-22 13:06:47,020 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 212 transitions. [2020-11-22 13:06:47,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-11-22 13:06:47,022 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:06:47,022 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:06:47,022 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-11-22 13:06:47,022 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr66REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr80ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr64REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr75ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr70REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr79REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr71ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr83ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr67REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr74ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr65REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr82ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr77ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr73REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr69REQUIRES_VIOLATION, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr81ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr78REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr76ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr60ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-11-22 13:06:47,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:06:47,023 INFO L82 PathProgramCache]: Analyzing trace with hash 901067277, now seen corresponding path program 1 times [2020-11-22 13:06:47,023 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:06:47,023 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026408884] [2020-11-22 13:06:47,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:06:47,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:06:47,091 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:06:47,092 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026408884] [2020-11-22 13:06:47,092 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1685044703] [2020-11-22 13:06:47,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0a8abcbc-8563-48ba-bb42-ea5dd2269fc9/bin/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-22 13:06:47,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:06:47,181 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 18 conjunts are in the unsatisfiable core [2020-11-22 13:06:47,187 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:06:47,338 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-11-22 13:06:47,348 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-22 13:06:47,400 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-22 13:06:47,410 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2020-11-22 13:06:47,411 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-22 13:06:47,423 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-22 13:06:47,423 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-22 13:06:47,423 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:29, output treesize:21 [2020-11-22 13:06:47,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-22 13:06:47,466 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2020-11-22 13:06:47,466 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-22 13:06:47,482 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-22 13:06:47,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-22 13:06:47,488 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2020-11-22 13:06:47,489 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-22 13:06:47,503 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-22 13:06:47,504 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-22 13:06:47,504 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:47, output treesize:39 [2020-11-22 13:06:47,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-22 13:06:47,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-22 13:06:47,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-22 13:06:47,542 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2020-11-22 13:06:47,543 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-22 13:06:47,564 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-22 13:06:47,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-22 13:06:47,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-22 13:06:47,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-22 13:06:47,571 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2020-11-22 13:06:47,572 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-22 13:06:47,588 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-22 13:06:47,588 INFO L545 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-22 13:06:47,588 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:65, output treesize:57 [2020-11-22 13:06:47,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-22 13:06:47,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-22 13:06:47,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-22 13:06:47,866 INFO L173 IndexEqualityManager]: detected equality via solver [2020-11-22 13:06:47,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-22 13:06:47,869 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 13 [2020-11-22 13:06:47,871 INFO L545 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2020-11-22 13:06:47,900 INFO L625 ElimStorePlain]: treesize reduction 3, result has 93.8 percent of original size [2020-11-22 13:06:47,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-22 13:06:47,910 INFO L173 IndexEqualityManager]: detected equality via solver [2020-11-22 13:06:47,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-22 13:06:47,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2020-11-22 13:06:47,915 INFO L350 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2020-11-22 13:06:47,916 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 33 treesize of output 16 [2020-11-22 13:06:47,922 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-22 13:06:47,937 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-22 13:06:47,940 INFO L545 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-22 13:06:47,940 INFO L244 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:77, output treesize:7 [2020-11-22 13:06:47,947 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:06:47,948 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:06:47,994 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-11-22 13:06:51,696 WARN L193 SmtUtils]: Spent 1.16 s on a formula simplification that was a NOOP. DAG size: 26 [2020-11-22 13:06:52,994 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2020-11-22 13:06:53,005 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 12 [2020-11-22 13:06:53,006 INFO L545 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2020-11-22 13:06:53,008 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-22 13:06:53,009 INFO L545 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-22 13:06:53,065 INFO L625 ElimStorePlain]: treesize reduction 8, result has 77.8 percent of original size [2020-11-22 13:06:53,071 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2020-11-22 13:06:53,102 INFO L384 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 12 [2020-11-22 13:06:53,104 INFO L545 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2020-11-22 13:06:53,106 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-22 13:06:53,106 INFO L545 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2020-11-22 13:06:53,125 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2020-11-22 13:06:53,127 INFO L545 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2020-11-22 13:06:53,127 INFO L244 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:43, output treesize:7 [2020-11-22 13:06:53,142 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:06:53,143 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1469365792] [2020-11-22 13:06:53,167 INFO L159 IcfgInterpreter]: Started Sifa with 26 locations of interest [2020-11-22 13:06:53,167 INFO L166 IcfgInterpreter]: Building call graph [2020-11-22 13:06:53,171 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-11-22 13:06:53,177 INFO L176 IcfgInterpreter]: Starting interpretation [2020-11-22 13:06:53,177 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-11-22 13:06:53,572 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-11-22 13:06:53,940 INFO L180 IcfgInterpreter]: Interpretation finished [2020-11-22 13:06:54,292 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 51 [2020-11-22 13:06:54,509 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 61 [2020-11-22 13:06:54,774 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 69 [2020-11-22 13:06:55,015 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 75 [2020-11-22 13:06:55,363 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 81 [2020-11-22 13:06:55,695 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 81 [2020-11-22 13:06:56,080 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 87 [2020-11-22 13:06:56,465 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 90 [2020-11-22 13:06:56,908 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 85 [2020-11-22 13:06:57,213 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 91 [2020-11-22 13:06:57,526 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 37 [2020-11-22 13:06:57,774 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2020-11-22 13:06:58,473 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 96 [2020-11-22 13:06:58,475 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-22 13:06:58,475 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2020-11-22 13:06:58,475 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7, 6] total 13 [2020-11-22 13:06:58,475 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998218243] [2020-11-22 13:06:58,476 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-11-22 13:06:58,476 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:06:58,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-11-22 13:06:58,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=187, Invalid=567, Unknown=2, NotChecked=0, Total=756 [2020-11-22 13:06:58,477 INFO L87 Difference]: Start difference. First operand 179 states and 212 transitions. Second operand 13 states. [2020-11-22 13:07:02,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:07:02,817 INFO L93 Difference]: Finished difference Result 319 states and 359 transitions. [2020-11-22 13:07:02,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-11-22 13:07:02,817 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 27 [2020-11-22 13:07:02,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:07:02,820 INFO L225 Difference]: With dead ends: 319 [2020-11-22 13:07:02,820 INFO L226 Difference]: Without dead ends: 319 [2020-11-22 13:07:02,821 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 40 SyntacticMatches, 20 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 393 ImplicationChecksByTransitivity, 11.2s TimeCoverageRelationStatistics Valid=273, Invalid=914, Unknown=3, NotChecked=0, Total=1190 [2020-11-22 13:07:02,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2020-11-22 13:07:02,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 221. [2020-11-22 13:07:02,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 221 states. [2020-11-22 13:07:02,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 268 transitions. [2020-11-22 13:07:02,828 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 268 transitions. Word has length 27 [2020-11-22 13:07:02,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:07:02,829 INFO L481 AbstractCegarLoop]: Abstraction has 221 states and 268 transitions. [2020-11-22 13:07:02,829 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-11-22 13:07:02,829 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 268 transitions. [2020-11-22 13:07:02,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-11-22 13:07:02,829 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:07:02,830 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] [2020-11-22 13:07:03,056 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2020-11-22 13:07:03,057 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr66REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr80ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr64REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr75ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr70REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr79REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr71ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr83ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr67REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr74ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr65REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr82ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr77ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr73REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr69REQUIRES_VIOLATION, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr81ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr78REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr76ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr60ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-11-22 13:07:03,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:07:03,057 INFO L82 PathProgramCache]: Analyzing trace with hash 732889226, now seen corresponding path program 1 times [2020-11-22 13:07:03,057 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:07:03,058 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519359907] [2020-11-22 13:07:03,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:07:03,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:07:03,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:07:03,247 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519359907] [2020-11-22 13:07:03,247 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:07:03,247 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-22 13:07:03,248 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824198326] [2020-11-22 13:07:03,248 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-22 13:07:03,248 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:07:03,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-22 13:07:03,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-11-22 13:07:03,249 INFO L87 Difference]: Start difference. First operand 221 states and 268 transitions. Second operand 10 states. [2020-11-22 13:07:03,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:07:03,969 INFO L93 Difference]: Finished difference Result 436 states and 489 transitions. [2020-11-22 13:07:03,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-22 13:07:03,971 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 28 [2020-11-22 13:07:03,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:07:03,975 INFO L225 Difference]: With dead ends: 436 [2020-11-22 13:07:03,975 INFO L226 Difference]: Without dead ends: 436 [2020-11-22 13:07:03,976 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380 [2020-11-22 13:07:03,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2020-11-22 13:07:03,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 222. [2020-11-22 13:07:03,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 222 states. [2020-11-22 13:07:03,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 267 transitions. [2020-11-22 13:07:03,985 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 267 transitions. Word has length 28 [2020-11-22 13:07:03,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:07:03,986 INFO L481 AbstractCegarLoop]: Abstraction has 222 states and 267 transitions. [2020-11-22 13:07:03,986 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-22 13:07:03,986 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 267 transitions. [2020-11-22 13:07:03,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-11-22 13:07:03,987 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:07:03,987 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] [2020-11-22 13:07:03,987 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2020-11-22 13:07:03,987 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr66REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr80ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr64REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr75ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr70REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr79REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr71ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr83ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr67REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr74ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr65REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr82ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr77ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr73REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr69REQUIRES_VIOLATION, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr81ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr78REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr76ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr60ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-11-22 13:07:03,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:07:03,988 INFO L82 PathProgramCache]: Analyzing trace with hash 732889227, now seen corresponding path program 1 times [2020-11-22 13:07:03,988 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:07:03,988 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212519555] [2020-11-22 13:07:03,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:07:04,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:07:04,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:07:04,168 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212519555] [2020-11-22 13:07:04,168 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:07:04,168 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-22 13:07:04,168 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073427268] [2020-11-22 13:07:04,169 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-22 13:07:04,169 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:07:04,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-22 13:07:04,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-11-22 13:07:04,169 INFO L87 Difference]: Start difference. First operand 222 states and 267 transitions. Second operand 10 states. [2020-11-22 13:07:05,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:07:05,097 INFO L93 Difference]: Finished difference Result 494 states and 548 transitions. [2020-11-22 13:07:05,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-11-22 13:07:05,098 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 28 [2020-11-22 13:07:05,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:07:05,100 INFO L225 Difference]: With dead ends: 494 [2020-11-22 13:07:05,100 INFO L226 Difference]: Without dead ends: 494 [2020-11-22 13:07:05,101 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2020-11-22 13:07:05,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2020-11-22 13:07:05,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 228. [2020-11-22 13:07:05,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2020-11-22 13:07:05,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 274 transitions. [2020-11-22 13:07:05,111 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 274 transitions. Word has length 28 [2020-11-22 13:07:05,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:07:05,112 INFO L481 AbstractCegarLoop]: Abstraction has 228 states and 274 transitions. [2020-11-22 13:07:05,112 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-22 13:07:05,112 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 274 transitions. [2020-11-22 13:07:05,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-11-22 13:07:05,113 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:07:05,113 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] [2020-11-22 13:07:05,113 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2020-11-22 13:07:05,113 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr66REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr80ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr64REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr75ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr70REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr79REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr71ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr83ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr67REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr74ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr65REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr82ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr77ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr73REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr69REQUIRES_VIOLATION, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr81ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr78REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr76ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr60ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-11-22 13:07:05,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:07:05,114 INFO L82 PathProgramCache]: Analyzing trace with hash 732878328, now seen corresponding path program 1 times [2020-11-22 13:07:05,114 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:07:05,114 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244133211] [2020-11-22 13:07:05,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:07:05,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:07:05,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:07:05,152 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244133211] [2020-11-22 13:07:05,153 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:07:05,153 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-22 13:07:05,153 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193617658] [2020-11-22 13:07:05,153 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-22 13:07:05,153 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:07:05,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-22 13:07:05,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 13:07:05,154 INFO L87 Difference]: Start difference. First operand 228 states and 274 transitions. Second operand 3 states. [2020-11-22 13:07:05,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:07:05,177 INFO L93 Difference]: Finished difference Result 225 states and 268 transitions. [2020-11-22 13:07:05,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 13:07:05,178 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 28 [2020-11-22 13:07:05,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:07:05,179 INFO L225 Difference]: With dead ends: 225 [2020-11-22 13:07:05,179 INFO L226 Difference]: Without dead ends: 225 [2020-11-22 13:07:05,179 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 [2020-11-22 13:07:05,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2020-11-22 13:07:05,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 225. [2020-11-22 13:07:05,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 225 states. [2020-11-22 13:07:05,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 268 transitions. [2020-11-22 13:07:05,185 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 268 transitions. Word has length 28 [2020-11-22 13:07:05,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:07:05,185 INFO L481 AbstractCegarLoop]: Abstraction has 225 states and 268 transitions. [2020-11-22 13:07:05,185 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-22 13:07:05,185 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 268 transitions. [2020-11-22 13:07:05,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-11-22 13:07:05,186 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:07:05,186 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] [2020-11-22 13:07:05,186 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2020-11-22 13:07:05,186 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr66REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr80ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr64REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr75ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr70REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr79REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr71ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr83ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr67REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr74ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr65REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr82ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr77ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr73REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr69REQUIRES_VIOLATION, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr81ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr78REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr76ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr60ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-11-22 13:07:05,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:07:05,187 INFO L82 PathProgramCache]: Analyzing trace with hash 2074364219, now seen corresponding path program 1 times [2020-11-22 13:07:05,187 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:07:05,187 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812422286] [2020-11-22 13:07:05,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:07:05,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:07:05,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:07:05,249 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812422286] [2020-11-22 13:07:05,249 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:07:05,249 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-22 13:07:05,249 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340596155] [2020-11-22 13:07:05,249 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 13:07:05,249 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:07:05,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 13:07:05,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-22 13:07:05,250 INFO L87 Difference]: Start difference. First operand 225 states and 268 transitions. Second operand 5 states. [2020-11-22 13:07:05,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:07:05,568 INFO L93 Difference]: Finished difference Result 332 states and 391 transitions. [2020-11-22 13:07:05,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-22 13:07:05,568 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-11-22 13:07:05,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:07:05,570 INFO L225 Difference]: With dead ends: 332 [2020-11-22 13:07:05,570 INFO L226 Difference]: Without dead ends: 332 [2020-11-22 13:07:05,571 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-22 13:07:05,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2020-11-22 13:07:05,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 224. [2020-11-22 13:07:05,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2020-11-22 13:07:05,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 267 transitions. [2020-11-22 13:07:05,578 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 267 transitions. Word has length 30 [2020-11-22 13:07:05,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:07:05,578 INFO L481 AbstractCegarLoop]: Abstraction has 224 states and 267 transitions. [2020-11-22 13:07:05,578 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 13:07:05,579 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 267 transitions. [2020-11-22 13:07:05,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-11-22 13:07:05,579 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:07:05,579 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] [2020-11-22 13:07:05,580 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2020-11-22 13:07:05,580 INFO L429 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr66REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr80ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr64REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr75ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr70REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr79REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr71ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr83ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr67REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr74ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr65REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr82ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr77ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr73REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr69REQUIRES_VIOLATION, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr81ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr78REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr76ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr60ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-11-22 13:07:05,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:07:05,580 INFO L82 PathProgramCache]: Analyzing trace with hash 2074364220, now seen corresponding path program 1 times [2020-11-22 13:07:05,581 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:07:05,581 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310973915] [2020-11-22 13:07:05,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:07:05,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:07:05,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:07:05,666 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310973915] [2020-11-22 13:07:05,667 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:07:05,667 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-22 13:07:05,667 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607717941] [2020-11-22 13:07:05,667 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 13:07:05,667 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:07:05,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 13:07:05,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-22 13:07:05,668 INFO L87 Difference]: Start difference. First operand 224 states and 267 transitions. Second operand 5 states. [2020-11-22 13:07:06,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:07:06,051 INFO L93 Difference]: Finished difference Result 356 states and 426 transitions. [2020-11-22 13:07:06,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-22 13:07:06,051 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-11-22 13:07:06,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:07:06,055 INFO L225 Difference]: With dead ends: 356 [2020-11-22 13:07:06,055 INFO L226 Difference]: Without dead ends: 356 [2020-11-22 13:07:06,055 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-22 13:07:06,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2020-11-22 13:07:06,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 223. [2020-11-22 13:07:06,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 223 states. [2020-11-22 13:07:06,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 266 transitions. [2020-11-22 13:07:06,062 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 266 transitions. Word has length 30 [2020-11-22 13:07:06,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:07:06,062 INFO L481 AbstractCegarLoop]: Abstraction has 223 states and 266 transitions. [2020-11-22 13:07:06,062 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 13:07:06,063 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 266 transitions. [2020-11-22 13:07:06,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-11-22 13:07:06,063 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:07:06,063 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] [2020-11-22 13:07:06,063 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2020-11-22 13:07:06,064 INFO L429 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr66REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr80ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr64REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr75ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr70REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr79REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr71ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr83ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr67REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr74ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr65REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr82ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr77ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr73REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr69REQUIRES_VIOLATION, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr81ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr78REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr76ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr60ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-11-22 13:07:06,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:07:06,064 INFO L82 PathProgramCache]: Analyzing trace with hash -2110505024, now seen corresponding path program 1 times [2020-11-22 13:07:06,065 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:07:06,065 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266163669] [2020-11-22 13:07:06,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:07:06,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:07:06,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:07:06,411 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266163669] [2020-11-22 13:07:06,411 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:07:06,411 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-11-22 13:07:06,411 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618030154] [2020-11-22 13:07:06,412 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-11-22 13:07:06,412 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:07:06,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-11-22 13:07:06,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-11-22 13:07:06,413 INFO L87 Difference]: Start difference. First operand 223 states and 266 transitions. Second operand 12 states. [2020-11-22 13:07:07,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:07:07,544 INFO L93 Difference]: Finished difference Result 489 states and 535 transitions. [2020-11-22 13:07:07,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-11-22 13:07:07,544 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 31 [2020-11-22 13:07:07,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:07:07,547 INFO L225 Difference]: With dead ends: 489 [2020-11-22 13:07:07,547 INFO L226 Difference]: Without dead ends: 489 [2020-11-22 13:07:07,547 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=135, Invalid=371, Unknown=0, NotChecked=0, Total=506 [2020-11-22 13:07:07,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states. [2020-11-22 13:07:07,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 223. [2020-11-22 13:07:07,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 223 states. [2020-11-22 13:07:07,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 265 transitions. [2020-11-22 13:07:07,555 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 265 transitions. Word has length 31 [2020-11-22 13:07:07,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:07:07,555 INFO L481 AbstractCegarLoop]: Abstraction has 223 states and 265 transitions. [2020-11-22 13:07:07,555 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-11-22 13:07:07,556 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 265 transitions. [2020-11-22 13:07:07,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-11-22 13:07:07,557 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:07:07,557 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:07:07,557 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2020-11-22 13:07:07,557 INFO L429 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr66REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr80ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr64REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr75ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr70REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr79REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr71ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr83ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr67REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr74ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr65REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr82ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr77ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr73REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr69REQUIRES_VIOLATION, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr81ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr78REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr76ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr60ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-11-22 13:07:07,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:07:07,558 INFO L82 PathProgramCache]: Analyzing trace with hash 707279201, now seen corresponding path program 1 times [2020-11-22 13:07:07,558 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:07:07,558 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601182360] [2020-11-22 13:07:07,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:07:07,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:07:07,603 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-22 13:07:07,604 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601182360] [2020-11-22 13:07:07,604 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:07:07,604 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-22 13:07:07,604 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036640836] [2020-11-22 13:07:07,604 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-22 13:07:07,604 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:07:07,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-22 13:07:07,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 13:07:07,605 INFO L87 Difference]: Start difference. First operand 223 states and 265 transitions. Second operand 3 states. [2020-11-22 13:07:07,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:07:07,661 INFO L93 Difference]: Finished difference Result 239 states and 272 transitions. [2020-11-22 13:07:07,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 13:07:07,661 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 32 [2020-11-22 13:07:07,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:07:07,662 INFO L225 Difference]: With dead ends: 239 [2020-11-22 13:07:07,663 INFO L226 Difference]: Without dead ends: 239 [2020-11-22 13:07:07,663 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 [2020-11-22 13:07:07,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2020-11-22 13:07:07,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 224. [2020-11-22 13:07:07,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2020-11-22 13:07:07,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 266 transitions. [2020-11-22 13:07:07,668 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 266 transitions. Word has length 32 [2020-11-22 13:07:07,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:07:07,668 INFO L481 AbstractCegarLoop]: Abstraction has 224 states and 266 transitions. [2020-11-22 13:07:07,668 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-22 13:07:07,669 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 266 transitions. [2020-11-22 13:07:07,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-11-22 13:07:07,669 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:07:07,669 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] [2020-11-22 13:07:07,670 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2020-11-22 13:07:07,670 INFO L429 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr66REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr80ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr64REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr75ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr70REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr79REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr71ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr83ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr67REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr74ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr65REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr82ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr77ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr73REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr69REQUIRES_VIOLATION, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr81ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr78REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr76ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr60ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-11-22 13:07:07,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:07:07,671 INFO L82 PathProgramCache]: Analyzing trace with hash 599534592, now seen corresponding path program 1 times [2020-11-22 13:07:07,671 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:07:07,671 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783228632] [2020-11-22 13:07:07,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:07:07,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:07:07,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:07:07,863 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783228632] [2020-11-22 13:07:07,864 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:07:07,864 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-11-22 13:07:07,864 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524706361] [2020-11-22 13:07:07,864 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-11-22 13:07:07,864 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:07:07,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-11-22 13:07:07,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-11-22 13:07:07,865 INFO L87 Difference]: Start difference. First operand 224 states and 266 transitions. Second operand 13 states. [2020-11-22 13:07:08,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:07:08,827 INFO L93 Difference]: Finished difference Result 239 states and 282 transitions. [2020-11-22 13:07:08,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-11-22 13:07:08,828 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 32 [2020-11-22 13:07:08,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:07:08,830 INFO L225 Difference]: With dead ends: 239 [2020-11-22 13:07:08,830 INFO L226 Difference]: Without dead ends: 239 [2020-11-22 13:07:08,830 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=132, Invalid=420, Unknown=0, NotChecked=0, Total=552 [2020-11-22 13:07:08,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2020-11-22 13:07:08,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 223. [2020-11-22 13:07:08,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 223 states. [2020-11-22 13:07:08,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 265 transitions. [2020-11-22 13:07:08,836 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 265 transitions. Word has length 32 [2020-11-22 13:07:08,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:07:08,836 INFO L481 AbstractCegarLoop]: Abstraction has 223 states and 265 transitions. [2020-11-22 13:07:08,836 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-11-22 13:07:08,838 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 265 transitions. [2020-11-22 13:07:08,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-11-22 13:07:08,839 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:07:08,839 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] [2020-11-22 13:07:08,839 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2020-11-22 13:07:08,840 INFO L429 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr66REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr80ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr64REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr75ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr70REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr79REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr71ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr83ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr67REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr74ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr65REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr82ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr77ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr73REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr69REQUIRES_VIOLATION, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr81ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr78REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr76ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr60ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-11-22 13:07:08,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:07:08,840 INFO L82 PathProgramCache]: Analyzing trace with hash 599534593, now seen corresponding path program 1 times [2020-11-22 13:07:08,841 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:07:08,841 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807092032] [2020-11-22 13:07:08,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:07:08,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:07:09,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:07:09,094 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807092032] [2020-11-22 13:07:09,094 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:07:09,094 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-11-22 13:07:09,095 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22806615] [2020-11-22 13:07:09,095 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-11-22 13:07:09,095 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:07:09,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-11-22 13:07:09,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-11-22 13:07:09,096 INFO L87 Difference]: Start difference. First operand 223 states and 265 transitions. Second operand 13 states. [2020-11-22 13:07:09,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:07:09,954 INFO L93 Difference]: Finished difference Result 238 states and 281 transitions. [2020-11-22 13:07:09,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-11-22 13:07:09,955 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 32 [2020-11-22 13:07:09,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:07:09,956 INFO L225 Difference]: With dead ends: 238 [2020-11-22 13:07:09,956 INFO L226 Difference]: Without dead ends: 238 [2020-11-22 13:07:09,957 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=132, Invalid=420, Unknown=0, NotChecked=0, Total=552 [2020-11-22 13:07:09,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2020-11-22 13:07:09,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 222. [2020-11-22 13:07:09,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 222 states. [2020-11-22 13:07:09,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 264 transitions. [2020-11-22 13:07:09,962 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 264 transitions. Word has length 32 [2020-11-22 13:07:09,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:07:09,962 INFO L481 AbstractCegarLoop]: Abstraction has 222 states and 264 transitions. [2020-11-22 13:07:09,962 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-11-22 13:07:09,962 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 264 transitions. [2020-11-22 13:07:09,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-11-22 13:07:09,963 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:07:09,963 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] [2020-11-22 13:07:09,963 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2020-11-22 13:07:09,963 INFO L429 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr66REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr80ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr64REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr75ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr70REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr79REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr71ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr83ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr67REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr74ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr65REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr82ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr77ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr73REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr69REQUIRES_VIOLATION, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr81ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr78REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr76ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr60ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-11-22 13:07:09,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:07:09,964 INFO L82 PathProgramCache]: Analyzing trace with hash 1433314510, now seen corresponding path program 1 times [2020-11-22 13:07:09,964 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:07:09,964 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798356295] [2020-11-22 13:07:09,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:07:09,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:07:10,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:07:10,023 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798356295] [2020-11-22 13:07:10,023 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:07:10,023 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-22 13:07:10,023 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681403255] [2020-11-22 13:07:10,024 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 13:07:10,024 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:07:10,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 13:07:10,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:07:10,024 INFO L87 Difference]: Start difference. First operand 222 states and 264 transitions. Second operand 4 states. [2020-11-22 13:07:10,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:07:10,163 INFO L93 Difference]: Finished difference Result 236 states and 279 transitions. [2020-11-22 13:07:10,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-22 13:07:10,164 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 33 [2020-11-22 13:07:10,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:07:10,165 INFO L225 Difference]: With dead ends: 236 [2020-11-22 13:07:10,165 INFO L226 Difference]: Without dead ends: 236 [2020-11-22 13:07:10,165 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 [2020-11-22 13:07:10,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2020-11-22 13:07:10,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 224. [2020-11-22 13:07:10,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2020-11-22 13:07:10,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 266 transitions. [2020-11-22 13:07:10,169 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 266 transitions. Word has length 33 [2020-11-22 13:07:10,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:07:10,169 INFO L481 AbstractCegarLoop]: Abstraction has 224 states and 266 transitions. [2020-11-22 13:07:10,169 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 13:07:10,170 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 266 transitions. [2020-11-22 13:07:10,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-11-22 13:07:10,170 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:07:10,170 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] [2020-11-22 13:07:10,171 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2020-11-22 13:07:10,171 INFO L429 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr66REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr80ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr64REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr75ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr70REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr79REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr71ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr83ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr67REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr74ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr65REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr82ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr77ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr73REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr69REQUIRES_VIOLATION, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr81ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr78REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr76ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr60ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-11-22 13:07:10,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:07:10,172 INFO L82 PathProgramCache]: Analyzing trace with hash 1494511985, now seen corresponding path program 1 times [2020-11-22 13:07:10,172 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:07:10,172 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407909175] [2020-11-22 13:07:10,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:07:10,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:07:10,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:07:10,247 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407909175] [2020-11-22 13:07:10,247 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:07:10,247 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-22 13:07:10,247 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808615903] [2020-11-22 13:07:10,248 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 13:07:10,248 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:07:10,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 13:07:10,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-22 13:07:10,249 INFO L87 Difference]: Start difference. First operand 224 states and 266 transitions. Second operand 5 states. [2020-11-22 13:07:10,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:07:10,366 INFO L93 Difference]: Finished difference Result 229 states and 272 transitions. [2020-11-22 13:07:10,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-22 13:07:10,367 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 34 [2020-11-22 13:07:10,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:07:10,368 INFO L225 Difference]: With dead ends: 229 [2020-11-22 13:07:10,368 INFO L226 Difference]: Without dead ends: 229 [2020-11-22 13:07:10,368 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 [2020-11-22 13:07:10,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2020-11-22 13:07:10,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 221. [2020-11-22 13:07:10,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 221 states. [2020-11-22 13:07:10,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 263 transitions. [2020-11-22 13:07:10,373 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 263 transitions. Word has length 34 [2020-11-22 13:07:10,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:07:10,373 INFO L481 AbstractCegarLoop]: Abstraction has 221 states and 263 transitions. [2020-11-22 13:07:10,373 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 13:07:10,374 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 263 transitions. [2020-11-22 13:07:10,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-11-22 13:07:10,374 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:07:10,374 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] [2020-11-22 13:07:10,374 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2020-11-22 13:07:10,375 INFO L429 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr45REQUIRES_VIOLATION, ULTIMATE.startErr66REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr24REQUIRES_VIOLATION, ULTIMATE.startErr80ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr22REQUIRES_VIOLATION, ULTIMATE.startErr47REQUIRES_VIOLATION, ULTIMATE.startErr43REQUIRES_VIOLATION, ULTIMATE.startErr64REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr72REQUIRES_VIOLATION, ULTIMATE.startErr30REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr26REQUIRES_VIOLATION, ULTIMATE.startErr75ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr49REQUIRES_VIOLATION, ULTIMATE.startErr28REQUIRES_VIOLATION, ULTIMATE.startErr70REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr35REQUIRES_VIOLATION, ULTIMATE.startErr56REQUIRES_VIOLATION, ULTIMATE.startErr57ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr79REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr50ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr71ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr54ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr83ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr41REQUIRES_VIOLATION, ULTIMATE.startErr62REQUIRES_VIOLATION, ULTIMATE.startErr20REQUIRES_VIOLATION, ULTIMATE.startErr37REQUIRES_VIOLATION, ULTIMATE.startErr58REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr39REQUIRES_VIOLATION, ULTIMATE.startErr67REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr25REQUIRES_VIOLATION, ULTIMATE.startErr46REQUIRES_VIOLATION, ULTIMATE.startErr42REQUIRES_VIOLATION, ULTIMATE.startErr74ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr65REQUIRES_VIOLATION, ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr44REQUIRES_VIOLATION, ULTIMATE.startErr51ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr82ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr23REQUIRES_VIOLATION, ULTIMATE.startErr32ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr29REQUIRES_VIOLATION, ULTIMATE.startErr77ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr31REQUIRES_VIOLATION, ULTIMATE.startErr52REQUIRES_VIOLATION, ULTIMATE.startErr73REQUIRES_VIOLATION, ULTIMATE.startErr27REQUIRES_VIOLATION, ULTIMATE.startErr48REQUIRES_VIOLATION, ULTIMATE.startErr69REQUIRES_VIOLATION, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr34REQUIRES_VIOLATION, ULTIMATE.startErr81ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr36REQUIRES_VIOLATION, ULTIMATE.startErr78REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr53REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr55REQUIRES_VIOLATION, ULTIMATE.startErr61REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr40REQUIRES_VIOLATION, ULTIMATE.startErr68ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr76ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr60ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr59REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr38REQUIRES_VIOLATION]=== [2020-11-22 13:07:10,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:07:10,375 INFO L82 PathProgramCache]: Analyzing trace with hash 296061363, now seen corresponding path program 1 times [2020-11-22 13:07:10,375 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:07:10,375 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925590654] [2020-11-22 13:07:10,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:07:10,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 13:07:10,394 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 13:07:10,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 13:07:10,409 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 13:07:10,434 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-11-22 13:07:10,435 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-22 13:07:10,435 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2020-11-22 13:07:10,470 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:07:10 BoogieIcfgContainer [2020-11-22 13:07:10,471 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 13:07:10,471 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 13:07:10,471 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 13:07:10,472 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 13:07:10,472 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:06:38" (3/4) ... [2020-11-22 13:07:10,474 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-22 13:07:10,517 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_0a8abcbc-8563-48ba-bb42-ea5dd2269fc9/bin/utaipan/witness.graphml [2020-11-22 13:07:10,517 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 13:07:10,518 INFO L168 Benchmark]: Toolchain (without parser) took 34126.81 ms. Allocated memory was 81.8 MB in the beginning and 209.7 MB in the end (delta: 127.9 MB). Free memory was 49.2 MB in the beginning and 73.3 MB in the end (delta: -24.1 MB). Peak memory consumption was 102.8 MB. Max. memory is 16.1 GB. [2020-11-22 13:07:10,519 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 81.8 MB. Free memory was 56.6 MB in the beginning and 56.6 MB in the end (delta: 26.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:07:10,519 INFO L168 Benchmark]: CACSL2BoogieTranslator took 568.23 ms. Allocated memory was 81.8 MB in the beginning and 98.6 MB in the end (delta: 16.8 MB). Free memory was 49.1 MB in the beginning and 64.7 MB in the end (delta: -15.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-22 13:07:10,520 INFO L168 Benchmark]: Boogie Procedure Inliner took 63.28 ms. Allocated memory is still 98.6 MB. Free memory was 64.7 MB in the beginning and 62.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:07:10,520 INFO L168 Benchmark]: Boogie Preprocessor took 65.34 ms. Allocated memory is still 98.6 MB. Free memory was 62.0 MB in the beginning and 59.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:07:10,521 INFO L168 Benchmark]: RCFGBuilder took 1110.98 ms. Allocated memory is still 98.6 MB. Free memory was 59.3 MB in the beginning and 39.6 MB in the end (delta: 19.7 MB). Peak memory consumption was 39.0 MB. Max. memory is 16.1 GB. [2020-11-22 13:07:10,521 INFO L168 Benchmark]: TraceAbstraction took 32266.26 ms. Allocated memory was 98.6 MB in the beginning and 209.7 MB in the end (delta: 111.1 MB). Free memory was 39.6 MB in the beginning and 76.5 MB in the end (delta: -36.8 MB). Peak memory consumption was 74.5 MB. Max. memory is 16.1 GB. [2020-11-22 13:07:10,522 INFO L168 Benchmark]: Witness Printer took 46.30 ms. Allocated memory is still 209.7 MB. Free memory was 76.5 MB in the beginning and 73.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:07:10,524 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 81.8 MB. Free memory was 56.6 MB in the beginning and 56.6 MB in the end (delta: 26.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 568.23 ms. Allocated memory was 81.8 MB in the beginning and 98.6 MB in the end (delta: 16.8 MB). Free memory was 49.1 MB in the beginning and 64.7 MB in the end (delta: -15.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 63.28 ms. Allocated memory is still 98.6 MB. Free memory was 64.7 MB in the beginning and 62.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 65.34 ms. Allocated memory is still 98.6 MB. Free memory was 62.0 MB in the beginning and 59.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1110.98 ms. Allocated memory is still 98.6 MB. Free memory was 59.3 MB in the beginning and 39.6 MB in the end (delta: 19.7 MB). Peak memory consumption was 39.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 32266.26 ms. Allocated memory was 98.6 MB in the beginning and 209.7 MB in the end (delta: 111.1 MB). Free memory was 39.6 MB in the beginning and 76.5 MB in the end (delta: -36.8 MB). Peak memory consumption was 74.5 MB. Max. memory is 16.1 GB. * Witness Printer took 46.30 ms. Allocated memory is still 209.7 MB. Free memory was 76.5 MB in the beginning and 73.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 992]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L1003] SLL* list = malloc(sizeof(SLL)); [L1004] list->next = ((void*)0) [L1005] list->prev = ((void*)0) [L1006] COND FALSE !(!(list != ((void*)0))) [L1006] COND FALSE !(__VERIFIER_nondet_int()) [L1006] list->inner = malloc(sizeof(SLL)) [L1006] EXPR list->inner [L1006] list->inner->next = ((void*)0) [L1006] EXPR list->inner [L1006] list->inner->inner = ((void*)0) [L1006] EXPR list->inner [L1006] EXPR list->inner != ((void*)0) || list->inner == ((void*)0) [L1006] COND FALSE !(!(list->inner != ((void*)0) || list->inner == ((void*)0))) [L1008] SLL* end = list; [L1011] COND FALSE !(__VERIFIER_nondet_int()) [L1022] end = ((void*)0) [L1023] end = list [L1026] COND FALSE !(!(((void*)0) != end)) [L1028] COND TRUE ((void*)0) != end [L1030] int len = 0; [L1031] EXPR end->inner [L1031] SLL* inner = end->inner; [L1032] COND TRUE ((void*)0) != inner [L1034] COND TRUE len == 0 [L1035] len = 1 [L1038] COND FALSE !(!(((void*)0) != inner)) [L1039] EXPR inner->inner [L1039] COND FALSE !(!(((void*)0) == inner->inner)) [L1040] EXPR inner->next [L1040] COND TRUE !(((void*)0) != inner->next) [L992] COND FALSE !(0) [L992] __assert_fail ("0", "dll-01-1.c", 12, __extension__ __PRETTY_FUNCTION__) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 204 locations, 84 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 32.1s, OverallIterations: 33, TraceHistogramMax: 2, AutomataDifference: 16.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4493 SDtfs, 7913 SDslu, 10866 SDs, 0 SdLazy, 9674 SolverSat, 547 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 359 GetRequests, 73 SyntacticMatches, 21 SemanticMatches, 265 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 643 ImplicationChecksByTransitivity, 15.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=228occurred in iteration=23, 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, 32 MinimizatonAttempts, 2456 StatesRemovedByMinimization, 30 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 8.5s InterpolantComputationTime, 731 NumberOfCodeBlocks, 731 NumberOfCodeBlocksAsserted, 34 NumberOfCheckSat, 690 ConstructedInterpolants, 23 QuantifiedInterpolants, 159568 SizeOfPredicates, 10 NumberOfNonLiveVariables, 126 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 34 InterpolantComputations, 31 PerfectInterpolantSequences, 4/7 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 incorrect! Received shutdown request...