./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/list-properties/list_flag-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_31fb231b-5e96-42b2-9500-0cca5f0ff1a6/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_31fb231b-5e96-42b2-9500-0cca5f0ff1a6/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_31fb231b-5e96-42b2-9500-0cca5f0ff1a6/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_31fb231b-5e96-42b2-9500-0cca5f0ff1a6/bin/utaipan/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-properties/list_flag-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_31fb231b-5e96-42b2-9500-0cca5f0ff1a6/bin/utaipan/config/svcomp-MemCleanup-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_31fb231b-5e96-42b2-9500-0cca5f0ff1a6/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 8d8f817036215afe0570c141fddfde907924f85b ........................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 13:00:36,926 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 13:00:36,928 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 13:00:36,983 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 13:00:36,983 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 13:00:36,993 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 13:00:36,996 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 13:00:37,004 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 13:00:37,007 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 13:00:37,014 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 13:00:37,020 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 13:00:37,022 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 13:00:37,022 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 13:00:37,026 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 13:00:37,028 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 13:00:37,031 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 13:00:37,032 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 13:00:37,037 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 13:00:37,041 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 13:00:37,046 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 13:00:37,050 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 13:00:37,052 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 13:00:37,054 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 13:00:37,055 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 13:00:37,061 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 13:00:37,061 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 13:00:37,062 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 13:00:37,064 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 13:00:37,064 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 13:00:37,065 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 13:00:37,066 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 13:00:37,067 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 13:00:37,069 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 13:00:37,071 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 13:00:37,072 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 13:00:37,072 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 13:00:37,073 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 13:00:37,073 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 13:00:37,073 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 13:00:37,074 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 13:00:37,075 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 13:00:37,078 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_31fb231b-5e96-42b2-9500-0cca5f0ff1a6/bin/utaipan/config/svcomp-MemCleanup-32bit-Taipan_Default.epf [2020-11-22 13:00:37,126 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 13:00:37,127 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 13:00:37,128 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 13:00:37,128 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 13:00:37,129 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 13:00:37,129 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 13:00:37,129 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-22 13:00:37,130 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 13:00:37,130 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 13:00:37,130 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-22 13:00:37,131 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-22 13:00:37,132 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 13:00:37,132 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-22 13:00:37,132 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-22 13:00:37,132 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-22 13:00:37,133 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-22 13:00:37,133 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-22 13:00:37,134 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 13:00:37,134 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 13:00:37,134 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-22 13:00:37,134 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-22 13:00:37,135 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 13:00:37,135 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 13:00:37,135 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-22 13:00:37,135 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-22 13:00:37,136 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 13:00:37,138 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 13:00:37,138 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 13:00:37,138 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 13:00:37,138 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 13:00:37,139 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 13:00:37,139 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 13:00:37,139 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:00:37,140 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 13:00:37,140 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 13:00:37,140 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-22 13:00:37,140 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-22 13:00:37,141 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 13:00:37,141 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 13:00:37,141 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_31fb231b-5e96-42b2-9500-0cca5f0ff1a6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_31fb231b-5e96-42b2-9500-0cca5f0ff1a6/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8d8f817036215afe0570c141fddfde907924f85b [2020-11-22 13:00:37,393 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 13:00:37,422 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 13:00:37,427 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 13:00:37,429 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 13:00:37,431 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 13:00:37,432 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_31fb231b-5e96-42b2-9500-0cca5f0ff1a6/bin/utaipan/../../sv-benchmarks/c/list-properties/list_flag-1.i [2020-11-22 13:00:37,531 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_31fb231b-5e96-42b2-9500-0cca5f0ff1a6/bin/utaipan/data/94bedc082/701c35699e8440cbad1bdee63c2ac567/FLAGaf1d6f27f [2020-11-22 13:00:38,084 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 13:00:38,089 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_31fb231b-5e96-42b2-9500-0cca5f0ff1a6/sv-benchmarks/c/list-properties/list_flag-1.i [2020-11-22 13:00:38,107 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_31fb231b-5e96-42b2-9500-0cca5f0ff1a6/bin/utaipan/data/94bedc082/701c35699e8440cbad1bdee63c2ac567/FLAGaf1d6f27f [2020-11-22 13:00:38,380 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_31fb231b-5e96-42b2-9500-0cca5f0ff1a6/bin/utaipan/data/94bedc082/701c35699e8440cbad1bdee63c2ac567 [2020-11-22 13:00:38,382 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 13:00:38,383 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 13:00:38,389 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 13:00:38,390 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 13:00:38,394 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 13:00:38,395 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:00:38" (1/1) ... [2020-11-22 13:00:38,397 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@676895e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:00:38, skipping insertion in model container [2020-11-22 13:00:38,397 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:00:38" (1/1) ... [2020-11-22 13:00:38,404 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 13:00:38,472 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:00:38,773 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:00:38,782 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 13:00:38,851 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:00:38,912 INFO L208 MainTranslator]: Completed translation [2020-11-22 13:00:38,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:00:38 WrapperNode [2020-11-22 13:00:38,913 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 13:00:38,914 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 13:00:38,914 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 13:00:38,914 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 13:00:38,924 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:00:38" (1/1) ... [2020-11-22 13:00:38,940 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:00:38" (1/1) ... [2020-11-22 13:00:38,959 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 13:00:38,960 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 13:00:38,960 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 13:00:38,960 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 13:00:38,968 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:00:38" (1/1) ... [2020-11-22 13:00:38,968 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:00:38" (1/1) ... [2020-11-22 13:00:38,972 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:00:38" (1/1) ... [2020-11-22 13:00:38,973 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:00:38" (1/1) ... [2020-11-22 13:00:38,982 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:00:38" (1/1) ... [2020-11-22 13:00:38,986 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:00:38" (1/1) ... [2020-11-22 13:00:38,988 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:00:38" (1/1) ... [2020-11-22 13:00:38,991 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 13:00:38,992 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 13:00:38,993 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 13:00:38,993 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 13:00:38,994 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:00:38" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_31fb231b-5e96-42b2-9500-0cca5f0ff1a6/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 13:00:39,086 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-22 13:00:39,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-22 13:00:39,087 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-22 13:00:39,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-22 13:00:39,087 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 13:00:39,087 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-22 13:00:39,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-22 13:00:39,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 13:00:39,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 13:00:39,692 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 13:00:39,692 INFO L298 CfgBuilder]: Removed 13 assume(true) statements. [2020-11-22 13:00:39,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:00:39 BoogieIcfgContainer [2020-11-22 13:00:39,694 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 13:00:39,696 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 13:00:39,696 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 13:00:39,700 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 13:00:39,700 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:00:38" (1/3) ... [2020-11-22 13:00:39,701 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7efab061 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:00:39, skipping insertion in model container [2020-11-22 13:00:39,701 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:00:38" (2/3) ... [2020-11-22 13:00:39,701 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7efab061 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:00:39, skipping insertion in model container [2020-11-22 13:00:39,702 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:00:39" (3/3) ... [2020-11-22 13:00:39,703 INFO L111 eAbstractionObserver]: Analyzing ICFG list_flag-1.i [2020-11-22 13:00:39,714 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 13:00:39,719 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 22 error locations. [2020-11-22 13:00:39,729 INFO L253 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2020-11-22 13:00:39,763 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 13:00:39,763 INFO L378 AbstractCegarLoop]: Hoare is false [2020-11-22 13:00:39,763 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 13:00:39,764 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 13:00:39,764 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 13:00:39,764 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 13:00:39,764 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 13:00:39,764 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 13:00:39,783 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states. [2020-11-22 13:00:39,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-22 13:00:39,791 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:00:39,792 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-22 13:00:39,792 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-11-22 13:00:39,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:00:39,804 INFO L82 PathProgramCache]: Analyzing trace with hash 4742184, now seen corresponding path program 1 times [2020-11-22 13:00:39,813 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:00:39,814 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773515127] [2020-11-22 13:00:39,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:00:39,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:00:39,986 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 13:00:39,987 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773515127] [2020-11-22 13:00:39,987 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:00:39,988 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-22 13:00:39,989 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403205183] [2020-11-22 13:00:39,993 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-22 13:00:39,994 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:00:40,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-22 13:00:40,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 13:00:40,012 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 2 states. [2020-11-22 13:00:40,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:00:40,025 INFO L93 Difference]: Finished difference Result 49 states and 55 transitions. [2020-11-22 13:00:40,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-22 13:00:40,026 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 4 [2020-11-22 13:00:40,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:00:40,037 INFO L225 Difference]: With dead ends: 49 [2020-11-22 13:00:40,038 INFO L226 Difference]: Without dead ends: 46 [2020-11-22 13:00:40,039 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 13:00:40,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-11-22 13:00:40,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2020-11-22 13:00:40,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-11-22 13:00:40,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 50 transitions. [2020-11-22 13:00:40,069 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 50 transitions. Word has length 4 [2020-11-22 13:00:40,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:00:40,069 INFO L481 AbstractCegarLoop]: Abstraction has 46 states and 50 transitions. [2020-11-22 13:00:40,069 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-22 13:00:40,070 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 50 transitions. [2020-11-22 13:00:40,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-22 13:00:40,070 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:00:40,070 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-11-22 13:00:40,071 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-22 13:00:40,071 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-11-22 13:00:40,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:00:40,072 INFO L82 PathProgramCache]: Analyzing trace with hash 146974028, now seen corresponding path program 1 times [2020-11-22 13:00:40,072 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:00:40,073 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757443714] [2020-11-22 13:00:40,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:00:40,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:00:40,132 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 13:00:40,133 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757443714] [2020-11-22 13:00:40,133 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:00:40,133 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-22 13:00:40,133 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731287809] [2020-11-22 13:00:40,134 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 13:00:40,135 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:00:40,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 13:00:40,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:00:40,136 INFO L87 Difference]: Start difference. First operand 46 states and 50 transitions. Second operand 4 states. [2020-11-22 13:00:40,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:00:40,336 INFO L93 Difference]: Finished difference Result 54 states and 60 transitions. [2020-11-22 13:00:40,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-22 13:00:40,336 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2020-11-22 13:00:40,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:00:40,339 INFO L225 Difference]: With dead ends: 54 [2020-11-22 13:00:40,339 INFO L226 Difference]: Without dead ends: 54 [2020-11-22 13:00:40,340 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 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 13:00:40,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-11-22 13:00:40,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 49. [2020-11-22 13:00:40,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-11-22 13:00:40,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 60 transitions. [2020-11-22 13:00:40,348 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 60 transitions. Word has length 5 [2020-11-22 13:00:40,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:00:40,348 INFO L481 AbstractCegarLoop]: Abstraction has 49 states and 60 transitions. [2020-11-22 13:00:40,348 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 13:00:40,348 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 60 transitions. [2020-11-22 13:00:40,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-22 13:00:40,349 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:00:40,349 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-11-22 13:00:40,349 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-22 13:00:40,350 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-11-22 13:00:40,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:00:40,351 INFO L82 PathProgramCache]: Analyzing trace with hash 146974029, now seen corresponding path program 1 times [2020-11-22 13:00:40,351 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:00:40,354 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227413453] [2020-11-22 13:00:40,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:00:40,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:00:40,444 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 13:00:40,444 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227413453] [2020-11-22 13:00:40,444 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:00:40,444 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-22 13:00:40,445 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896899313] [2020-11-22 13:00:40,445 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 13:00:40,445 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:00:40,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 13:00:40,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:00:40,446 INFO L87 Difference]: Start difference. First operand 49 states and 60 transitions. Second operand 4 states. [2020-11-22 13:00:40,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:00:40,626 INFO L93 Difference]: Finished difference Result 64 states and 71 transitions. [2020-11-22 13:00:40,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-22 13:00:40,628 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2020-11-22 13:00:40,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:00:40,629 INFO L225 Difference]: With dead ends: 64 [2020-11-22 13:00:40,629 INFO L226 Difference]: Without dead ends: 64 [2020-11-22 13:00:40,629 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 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 13:00:40,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2020-11-22 13:00:40,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 58. [2020-11-22 13:00:40,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-11-22 13:00:40,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 66 transitions. [2020-11-22 13:00:40,638 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 66 transitions. Word has length 5 [2020-11-22 13:00:40,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:00:40,638 INFO L481 AbstractCegarLoop]: Abstraction has 58 states and 66 transitions. [2020-11-22 13:00:40,639 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 13:00:40,639 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 66 transitions. [2020-11-22 13:00:40,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-22 13:00:40,640 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:00:40,640 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:00:40,640 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-22 13:00:40,640 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-11-22 13:00:40,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:00:40,644 INFO L82 PathProgramCache]: Analyzing trace with hash -1372234834, now seen corresponding path program 1 times [2020-11-22 13:00:40,644 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:00:40,644 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532508969] [2020-11-22 13:00:40,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:00:40,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:00:40,714 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:00:40,714 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532508969] [2020-11-22 13:00:40,715 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:00:40,715 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-22 13:00:40,715 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614693913] [2020-11-22 13:00:40,715 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 13:00:40,715 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:00:40,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 13:00:40,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-22 13:00:40,716 INFO L87 Difference]: Start difference. First operand 58 states and 66 transitions. Second operand 5 states. [2020-11-22 13:00:41,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:00:41,018 INFO L93 Difference]: Finished difference Result 77 states and 85 transitions. [2020-11-22 13:00:41,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-22 13:00:41,019 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-11-22 13:00:41,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:00:41,020 INFO L225 Difference]: With dead ends: 77 [2020-11-22 13:00:41,020 INFO L226 Difference]: Without dead ends: 77 [2020-11-22 13:00:41,021 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-22 13:00:41,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2020-11-22 13:00:41,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 61. [2020-11-22 13:00:41,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-11-22 13:00:41,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 70 transitions. [2020-11-22 13:00:41,034 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 70 transitions. Word has length 10 [2020-11-22 13:00:41,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:00:41,035 INFO L481 AbstractCegarLoop]: Abstraction has 61 states and 70 transitions. [2020-11-22 13:00:41,036 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 13:00:41,036 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 70 transitions. [2020-11-22 13:00:41,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-22 13:00:41,037 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:00:41,037 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:00:41,038 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-22 13:00:41,038 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-11-22 13:00:41,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:00:41,041 INFO L82 PathProgramCache]: Analyzing trace with hash -1352194988, now seen corresponding path program 1 times [2020-11-22 13:00:41,041 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:00:41,043 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800367506] [2020-11-22 13:00:41,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:00:41,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:00:41,158 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:00:41,158 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800367506] [2020-11-22 13:00:41,158 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:00:41,159 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-22 13:00:41,159 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607762258] [2020-11-22 13:00:41,159 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 13:00:41,159 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:00:41,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 13:00:41,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-22 13:00:41,160 INFO L87 Difference]: Start difference. First operand 61 states and 70 transitions. Second operand 5 states. [2020-11-22 13:00:41,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:00:41,309 INFO L93 Difference]: Finished difference Result 76 states and 83 transitions. [2020-11-22 13:00:41,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-22 13:00:41,310 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-11-22 13:00:41,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:00:41,311 INFO L225 Difference]: With dead ends: 76 [2020-11-22 13:00:41,311 INFO L226 Difference]: Without dead ends: 76 [2020-11-22 13:00:41,311 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-22 13:00:41,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-11-22 13:00:41,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 63. [2020-11-22 13:00:41,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-11-22 13:00:41,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 72 transitions. [2020-11-22 13:00:41,318 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 72 transitions. Word has length 10 [2020-11-22 13:00:41,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:00:41,318 INFO L481 AbstractCegarLoop]: Abstraction has 63 states and 72 transitions. [2020-11-22 13:00:41,318 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 13:00:41,319 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 72 transitions. [2020-11-22 13:00:41,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-22 13:00:41,319 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:00:41,319 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:00:41,320 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-22 13:00:41,320 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr19REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION]=== [2020-11-22 13:00:41,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:00:41,320 INFO L82 PathProgramCache]: Analyzing trace with hash 410307385, now seen corresponding path program 1 times [2020-11-22 13:00:41,321 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:00:41,321 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891568940] [2020-11-22 13:00:41,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:00:41,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 13:00:41,338 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 13:00:41,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 13:00:41,356 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 13:00:41,377 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-11-22 13:00:41,379 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-22 13:00:41,379 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-22 13:00:41,413 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:00:41 BoogieIcfgContainer [2020-11-22 13:00:41,418 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 13:00:41,420 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 13:00:41,424 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 13:00:41,424 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 13:00:41,425 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:00:39" (3/4) ... [2020-11-22 13:00:41,427 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-22 13:00:41,475 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_31fb231b-5e96-42b2-9500-0cca5f0ff1a6/bin/utaipan/witness.graphml [2020-11-22 13:00:41,475 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 13:00:41,477 INFO L168 Benchmark]: Toolchain (without parser) took 3093.15 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 67.8 MB in the beginning and 77.3 MB in the end (delta: -9.5 MB). Peak memory consumption was 11.0 MB. Max. memory is 16.1 GB. [2020-11-22 13:00:41,478 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 98.6 MB. Free memory is still 57.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:00:41,479 INFO L168 Benchmark]: CACSL2BoogieTranslator took 523.79 ms. Allocated memory is still 98.6 MB. Free memory was 67.5 MB in the beginning and 63.1 MB in the end (delta: 4.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-22 13:00:41,479 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.66 ms. Allocated memory is still 98.6 MB. Free memory was 63.1 MB in the beginning and 61.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-22 13:00:41,480 INFO L168 Benchmark]: Boogie Preprocessor took 31.63 ms. Allocated memory is still 98.6 MB. Free memory was 61.1 MB in the beginning and 59.9 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:00:41,480 INFO L168 Benchmark]: RCFGBuilder took 702.19 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 59.9 MB in the beginning and 88.3 MB in the end (delta: -28.4 MB). Peak memory consumption was 25.0 MB. Max. memory is 16.1 GB. [2020-11-22 13:00:41,481 INFO L168 Benchmark]: TraceAbstraction took 1722.37 ms. Allocated memory is still 119.5 MB. Free memory was 87.7 MB in the beginning and 78.5 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.5 MB. Max. memory is 16.1 GB. [2020-11-22 13:00:41,482 INFO L168 Benchmark]: Witness Printer took 55.61 ms. Allocated memory is still 119.5 MB. Free memory was 78.5 MB in the beginning and 77.3 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:00:41,485 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 98.6 MB. Free memory is still 57.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 523.79 ms. Allocated memory is still 98.6 MB. Free memory was 67.5 MB in the beginning and 63.1 MB in the end (delta: 4.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 45.66 ms. Allocated memory is still 98.6 MB. Free memory was 63.1 MB in the beginning and 61.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 31.63 ms. Allocated memory is still 98.6 MB. Free memory was 61.1 MB in the beginning and 59.9 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 702.19 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 59.9 MB in the beginning and 88.3 MB in the end (delta: -28.4 MB). Peak memory consumption was 25.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1722.37 ms. Allocated memory is still 119.5 MB. Free memory was 87.7 MB in the beginning and 78.5 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.5 MB. Max. memory is 16.1 GB. * Witness Printer took 55.61 ms. Allocated memory is still 119.5 MB. Free memory was 78.5 MB in the beginning and 77.3 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 531]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L532] int flag = __VERIFIER_nondet_int(); [L533] List p, a, t; [L534] a = (List) malloc(sizeof(struct node)) [L535] COND FALSE !(a == 0) [L536] p = a [L537] COND FALSE !(__VERIFIER_nondet_int()) [L548] p->h = 3 [L549] p = a [L550] COND TRUE \read(flag) [L551] EXPR p->h [L551] COND FALSE !(p->h == 2) [L556] EXPR p->h [L556] COND FALSE !(p->h != 3) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 50 locations, 22 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.6s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 163 SDtfs, 258 SDslu, 159 SDs, 0 SdLazy, 244 SolverSat, 47 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=63occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 40 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 29 ConstructedInterpolants, 0 QuantifiedInterpolants, 971 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 2/2 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...