./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety-ext3/getNumbers1-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d40a15ee-5702-4b93-85d0-832a011213de/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d40a15ee-5702-4b93-85d0-832a011213de/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d40a15ee-5702-4b93-85d0-832a011213de/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d40a15ee-5702-4b93-85d0-832a011213de/bin/utaipan-WLngWcDbfI/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext3/getNumbers1-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d40a15ee-5702-4b93-85d0-832a011213de/bin/utaipan-WLngWcDbfI/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d40a15ee-5702-4b93-85d0-832a011213de/bin/utaipan-WLngWcDbfI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1b1751fe95f9cf655681429038c1cde9e9c074e8 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref) --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:25:45,536 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:25:45,538 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:25:45,591 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:25:45,592 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:25:45,620 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:25:45,621 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:25:45,624 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:25:45,626 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:25:45,627 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:25:45,628 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:25:45,630 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:25:45,630 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:25:45,632 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:25:45,633 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:25:45,635 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:25:45,636 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:25:45,638 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:25:45,640 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:25:45,642 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:25:45,644 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:25:45,647 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:25:45,648 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:25:45,650 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:25:45,653 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:25:45,653 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:25:45,654 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:25:45,655 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:25:45,656 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:25:45,658 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:25:45,659 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:25:45,660 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:25:45,662 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:25:45,663 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:25:45,665 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:25:45,665 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:25:45,666 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:25:45,666 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:25:45,666 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:25:45,667 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:25:45,668 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:25:45,670 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d40a15ee-5702-4b93-85d0-832a011213de/bin/utaipan-WLngWcDbfI/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-10-11 02:25:45,721 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:25:45,721 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:25:45,723 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:25:45,733 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:25:45,734 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:25:45,734 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:25:45,734 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:25:45,734 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:25:45,734 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:25:45,735 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:25:45,735 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:25:45,735 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:25:45,735 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:25:45,736 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:25:45,736 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:25:45,736 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 02:25:45,737 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 02:25:45,737 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:25:45,737 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:25:45,737 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-11 02:25:45,738 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:25:45,738 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:25:45,738 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:25:45,738 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-11 02:25:45,738 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-11 02:25:45,738 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-11 02:25:45,739 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:25:45,739 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:25:45,739 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:25:45,739 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:25:45,739 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:25:45,740 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:25:45,740 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:25:45,740 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:25:45,740 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:25:45,740 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:25:45,741 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:25:45,741 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:25:45,741 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:25:45,741 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d40a15ee-5702-4b93-85d0-832a011213de/bin/utaipan-WLngWcDbfI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d40a15ee-5702-4b93-85d0-832a011213de/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b1751fe95f9cf655681429038c1cde9e9c074e8 [2021-10-11 02:25:46,007 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:25:46,046 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:25:46,048 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:25:46,050 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:25:46,053 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:25:46,054 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d40a15ee-5702-4b93-85d0-832a011213de/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/memsafety-ext3/getNumbers1-1.c [2021-10-11 02:25:46,127 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d40a15ee-5702-4b93-85d0-832a011213de/bin/utaipan-WLngWcDbfI/data/0c2004934/4f473be35ca9452db574da9ab3e166dd/FLAGed7415820 [2021-10-11 02:25:46,727 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:25:46,728 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d40a15ee-5702-4b93-85d0-832a011213de/sv-benchmarks/c/memsafety-ext3/getNumbers1-1.c [2021-10-11 02:25:46,740 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d40a15ee-5702-4b93-85d0-832a011213de/bin/utaipan-WLngWcDbfI/data/0c2004934/4f473be35ca9452db574da9ab3e166dd/FLAGed7415820 [2021-10-11 02:25:47,106 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d40a15ee-5702-4b93-85d0-832a011213de/bin/utaipan-WLngWcDbfI/data/0c2004934/4f473be35ca9452db574da9ab3e166dd [2021-10-11 02:25:47,108 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:25:47,110 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:25:47,112 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:25:47,112 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:25:47,116 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:25:47,117 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:25:47" (1/1) ... [2021-10-11 02:25:47,119 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40d6915b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:47, skipping insertion in model container [2021-10-11 02:25:47,119 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:25:47" (1/1) ... [2021-10-11 02:25:47,127 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:25:47,140 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:25:47,346 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:25:47,360 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:25:47,380 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:25:47,397 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:25:47,399 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:47 WrapperNode [2021-10-11 02:25:47,399 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:25:47,401 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:25:47,401 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:25:47,401 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:25:47,409 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:47" (1/1) ... [2021-10-11 02:25:47,421 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:47" (1/1) ... [2021-10-11 02:25:47,445 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:25:47,446 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:25:47,447 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:25:47,447 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:25:47,456 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:47" (1/1) ... [2021-10-11 02:25:47,457 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:47" (1/1) ... [2021-10-11 02:25:47,472 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:47" (1/1) ... [2021-10-11 02:25:47,473 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:47" (1/1) ... [2021-10-11 02:25:47,478 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:47" (1/1) ... [2021-10-11 02:25:47,487 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:47" (1/1) ... [2021-10-11 02:25:47,498 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:47" (1/1) ... [2021-10-11 02:25:47,500 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:25:47,501 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:25:47,501 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:25:47,501 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:25:47,504 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:47" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d40a15ee-5702-4b93-85d0-832a011213de/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:25:47,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-11 02:25:47,592 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:25:47,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:25:47,592 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-11 02:25:47,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 02:25:47,593 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:25:47,593 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-11 02:25:48,151 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:25:48,152 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-10-11 02:25:48,157 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:25:48 BoogieIcfgContainer [2021-10-11 02:25:48,158 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:25:48,160 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:25:48,160 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:25:48,163 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:25:48,164 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:25:47" (1/3) ... [2021-10-11 02:25:48,165 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@459d857d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:25:48, skipping insertion in model container [2021-10-11 02:25:48,165 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:47" (2/3) ... [2021-10-11 02:25:48,166 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@459d857d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:25:48, skipping insertion in model container [2021-10-11 02:25:48,166 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:25:48" (3/3) ... [2021-10-11 02:25:48,168 INFO L111 eAbstractionObserver]: Analyzing ICFG getNumbers1-1.c [2021-10-11 02:25:48,183 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:25:48,187 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2021-10-11 02:25:48,199 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-10-11 02:25:48,232 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:25:48,233 INFO L378 AbstractCegarLoop]: Hoare is false [2021-10-11 02:25:48,234 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:25:48,234 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:25:48,234 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:25:48,235 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:25:48,235 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:25:48,235 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:25:48,249 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2021-10-11 02:25:48,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-11 02:25:48,256 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:25:48,257 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-11 02:25:48,258 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2021-10-11 02:25:48,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:25:48,265 INFO L82 PathProgramCache]: Analyzing trace with hash 72397, now seen corresponding path program 1 times [2021-10-11 02:25:48,276 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:25:48,277 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953062258] [2021-10-11 02:25:48,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:25:48,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:25:48,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:25:48,478 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953062258] [2021-10-11 02:25:48,496 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:25:48,496 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-11 02:25:48,497 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502244357] [2021-10-11 02:25:48,500 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:25:48,501 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:25:48,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:25:48,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:25:48,516 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 3 states. [2021-10-11 02:25:48,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:25:48,548 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions. [2021-10-11 02:25:48,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:25:48,550 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2021-10-11 02:25:48,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:25:48,558 INFO L225 Difference]: With dead ends: 11 [2021-10-11 02:25:48,558 INFO L226 Difference]: Without dead ends: 10 [2021-10-11 02:25:48,560 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:25:48,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2021-10-11 02:25:48,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2021-10-11 02:25:48,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-10-11 02:25:48,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2021-10-11 02:25:48,590 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 11 transitions. Word has length 3 [2021-10-11 02:25:48,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:25:48,591 INFO L481 AbstractCegarLoop]: Abstraction has 10 states and 11 transitions. [2021-10-11 02:25:48,591 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:25:48,591 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2021-10-11 02:25:48,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-11 02:25:48,592 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:25:48,592 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-11 02:25:48,592 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 02:25:48,592 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2021-10-11 02:25:48,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:25:48,593 INFO L82 PathProgramCache]: Analyzing trace with hash 72398, now seen corresponding path program 1 times [2021-10-11 02:25:48,593 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:25:48,594 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247911544] [2021-10-11 02:25:48,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:25:48,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:25:48,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:25:48,678 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247911544] [2021-10-11 02:25:48,678 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:25:48,678 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-11 02:25:48,679 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98183683] [2021-10-11 02:25:48,680 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:25:48,681 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:25:48,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:25:48,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:25:48,683 INFO L87 Difference]: Start difference. First operand 10 states and 11 transitions. Second operand 3 states. [2021-10-11 02:25:48,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:25:48,719 INFO L93 Difference]: Finished difference Result 12 states and 13 transitions. [2021-10-11 02:25:48,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:25:48,721 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2021-10-11 02:25:48,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:25:48,722 INFO L225 Difference]: With dead ends: 12 [2021-10-11 02:25:48,722 INFO L226 Difference]: Without dead ends: 12 [2021-10-11 02:25:48,723 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:25:48,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2021-10-11 02:25:48,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2021-10-11 02:25:48,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-10-11 02:25:48,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2021-10-11 02:25:48,728 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 13 transitions. Word has length 3 [2021-10-11 02:25:48,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:25:48,729 INFO L481 AbstractCegarLoop]: Abstraction has 12 states and 13 transitions. [2021-10-11 02:25:48,729 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:25:48,729 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2021-10-11 02:25:48,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-11 02:25:48,730 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:25:48,730 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1] [2021-10-11 02:25:48,730 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 02:25:48,730 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2021-10-11 02:25:48,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:25:48,732 INFO L82 PathProgramCache]: Analyzing trace with hash 69605553, now seen corresponding path program 1 times [2021-10-11 02:25:48,733 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:25:48,736 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652070202] [2021-10-11 02:25:48,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:25:48,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:25:48,836 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:25:48,838 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652070202] [2021-10-11 02:25:48,838 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [394339109] [2021-10-11 02:25:48,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d40a15ee-5702-4b93-85d0-832a011213de/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:25:48,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:25:48,899 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-11 02:25:48,903 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:25:48,989 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 02:25:48,990 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 25 [2021-10-11 02:25:49,003 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-11 02:25:49,038 INFO L625 ElimStorePlain]: treesize reduction 10, result has 67.7 percent of original size [2021-10-11 02:25:49,050 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-11 02:25:49,050 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:16, output treesize:12 [2021-10-11 02:25:49,099 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:25:49,100 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:25:49,166 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:25:49,167 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1746027018] [2021-10-11 02:25:49,191 INFO L159 IcfgInterpreter]: Started Sifa with 4 locations of interest [2021-10-11 02:25:49,191 INFO L166 IcfgInterpreter]: Building call graph [2021-10-11 02:25:49,197 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-11 02:25:49,204 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-11 02:25:49,205 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-11 02:25:49,935 INFO L180 IcfgInterpreter]: Interpretation finished [2021-10-11 02:25:50,232 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 02:25:50,232 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-10-11 02:25:50,233 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 4 [2021-10-11 02:25:50,233 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038312919] [2021-10-11 02:25:50,234 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 02:25:50,234 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:25:50,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 02:25:50,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-10-11 02:25:50,235 INFO L87 Difference]: Start difference. First operand 12 states and 13 transitions. Second operand 6 states. [2021-10-11 02:25:50,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:25:50,337 INFO L93 Difference]: Finished difference Result 30 states and 33 transitions. [2021-10-11 02:25:50,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 02:25:50,338 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 5 [2021-10-11 02:25:50,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:25:50,340 INFO L225 Difference]: With dead ends: 30 [2021-10-11 02:25:50,340 INFO L226 Difference]: Without dead ends: 30 [2021-10-11 02:25:50,341 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-10-11 02:25:50,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2021-10-11 02:25:50,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 18. [2021-10-11 02:25:50,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-10-11 02:25:50,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2021-10-11 02:25:50,349 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 21 transitions. Word has length 5 [2021-10-11 02:25:50,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:25:50,349 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 21 transitions. [2021-10-11 02:25:50,349 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 02:25:50,349 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2021-10-11 02:25:50,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-11 02:25:50,350 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:25:50,350 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1] [2021-10-11 02:25:50,565 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-10-11 02:25:50,566 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2021-10-11 02:25:50,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:25:50,566 INFO L82 PathProgramCache]: Analyzing trace with hash -849168678, now seen corresponding path program 1 times [2021-10-11 02:25:50,567 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:25:50,567 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497607114] [2021-10-11 02:25:50,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:25:50,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:25:50,605 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-11 02:25:50,606 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497607114] [2021-10-11 02:25:50,606 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:25:50,607 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:25:50,608 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230126504] [2021-10-11 02:25:50,609 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:25:50,609 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:25:50,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:25:50,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:25:50,610 INFO L87 Difference]: Start difference. First operand 18 states and 21 transitions. Second operand 3 states. [2021-10-11 02:25:50,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:25:50,629 INFO L93 Difference]: Finished difference Result 22 states and 25 transitions. [2021-10-11 02:25:50,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:25:50,630 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2021-10-11 02:25:50,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:25:50,633 INFO L225 Difference]: With dead ends: 22 [2021-10-11 02:25:50,633 INFO L226 Difference]: Without dead ends: 22 [2021-10-11 02:25:50,633 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:25:50,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2021-10-11 02:25:50,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 19. [2021-10-11 02:25:50,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-10-11 02:25:50,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 22 transitions. [2021-10-11 02:25:50,639 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 22 transitions. Word has length 8 [2021-10-11 02:25:50,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:25:50,640 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 22 transitions. [2021-10-11 02:25:50,640 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:25:50,640 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2021-10-11 02:25:50,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-11 02:25:50,641 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:25:50,641 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1] [2021-10-11 02:25:50,641 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-10-11 02:25:50,642 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2021-10-11 02:25:50,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:25:50,642 INFO L82 PathProgramCache]: Analyzing trace with hash -849169369, now seen corresponding path program 1 times [2021-10-11 02:25:50,642 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:25:50,644 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618702821] [2021-10-11 02:25:50,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:25:50,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:25:50,709 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:25:50,710 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618702821] [2021-10-11 02:25:50,710 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2002289854] [2021-10-11 02:25:50,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d40a15ee-5702-4b93-85d0-832a011213de/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:25:50,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:25:50,755 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-11 02:25:50,756 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:25:50,808 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:25:50,808 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:25:50,847 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:25:50,847 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2009716330] [2021-10-11 02:25:50,850 INFO L159 IcfgInterpreter]: Started Sifa with 6 locations of interest [2021-10-11 02:25:50,850 INFO L166 IcfgInterpreter]: Building call graph [2021-10-11 02:25:50,850 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-11 02:25:50,851 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-11 02:25:50,851 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-11 02:25:51,216 INFO L180 IcfgInterpreter]: Interpretation finished [2021-10-11 02:25:51,473 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 02:25:51,473 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-10-11 02:25:51,475 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2021-10-11 02:25:51,479 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295110335] [2021-10-11 02:25:51,480 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-10-11 02:25:51,480 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:25:51,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-11 02:25:51,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2021-10-11 02:25:51,482 INFO L87 Difference]: Start difference. First operand 19 states and 22 transitions. Second operand 9 states. [2021-10-11 02:25:51,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:25:51,529 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2021-10-11 02:25:51,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-11 02:25:51,530 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 8 [2021-10-11 02:25:51,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:25:51,532 INFO L225 Difference]: With dead ends: 23 [2021-10-11 02:25:51,532 INFO L226 Difference]: Without dead ends: 23 [2021-10-11 02:25:51,533 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2021-10-11 02:25:51,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-10-11 02:25:51,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2021-10-11 02:25:51,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2021-10-11 02:25:51,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions. [2021-10-11 02:25:51,540 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 8 [2021-10-11 02:25:51,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:25:51,542 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions. [2021-10-11 02:25:51,543 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-10-11 02:25:51,543 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2021-10-11 02:25:51,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-11 02:25:51,544 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:25:51,544 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 1, 1] [2021-10-11 02:25:51,769 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:25:51,770 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2021-10-11 02:25:51,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:25:51,770 INFO L82 PathProgramCache]: Analyzing trace with hash -1464187430, now seen corresponding path program 2 times [2021-10-11 02:25:51,770 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:25:51,771 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562687880] [2021-10-11 02:25:51,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:25:51,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:25:51,918 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:25:51,919 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562687880] [2021-10-11 02:25:51,919 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [501019020] [2021-10-11 02:25:51,919 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d40a15ee-5702-4b93-85d0-832a011213de/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:25:51,972 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-10-11 02:25:51,973 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-11 02:25:51,973 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-11 02:25:51,975 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:25:52,082 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-10-11 02:25:52,082 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:25:52,179 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-10-11 02:25:52,180 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2021-10-11 02:25:52,180 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6, 3] total 12 [2021-10-11 02:25:52,180 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663222135] [2021-10-11 02:25:52,181 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:25:52,181 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:25:52,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:25:52,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2021-10-11 02:25:52,182 INFO L87 Difference]: Start difference. First operand 22 states and 24 transitions. Second operand 5 states. [2021-10-11 02:25:52,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:25:52,204 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2021-10-11 02:25:52,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:25:52,205 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2021-10-11 02:25:52,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:25:52,206 INFO L225 Difference]: With dead ends: 21 [2021-10-11 02:25:52,206 INFO L226 Difference]: Without dead ends: 21 [2021-10-11 02:25:52,207 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2021-10-11 02:25:52,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-10-11 02:25:52,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2021-10-11 02:25:52,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-10-11 02:25:52,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2021-10-11 02:25:52,210 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 11 [2021-10-11 02:25:52,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:25:52,210 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2021-10-11 02:25:52,211 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:25:52,211 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2021-10-11 02:25:52,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-11 02:25:52,211 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:25:52,212 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 1, 1, 1, 1] [2021-10-11 02:25:52,425 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2021-10-11 02:25:52,425 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2021-10-11 02:25:52,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:25:52,426 INFO L82 PathProgramCache]: Analyzing trace with hash 623284379, now seen corresponding path program 2 times [2021-10-11 02:25:52,426 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:25:52,426 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209796437] [2021-10-11 02:25:52,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:25:52,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:25:52,506 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:25:52,507 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209796437] [2021-10-11 02:25:52,507 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1295718224] [2021-10-11 02:25:52,507 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d40a15ee-5702-4b93-85d0-832a011213de/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:25:52,550 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-10-11 02:25:52,550 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-11 02:25:52,551 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-11 02:25:52,553 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:25:52,662 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-10-11 02:25:52,662 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:25:52,744 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-10-11 02:25:52,744 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2021-10-11 02:25:52,744 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [8] total 12 [2021-10-11 02:25:52,745 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958814961] [2021-10-11 02:25:52,745 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 02:25:52,745 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:25:52,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 02:25:52,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2021-10-11 02:25:52,746 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 6 states. [2021-10-11 02:25:52,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:25:52,818 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2021-10-11 02:25:52,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:25:52,819 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2021-10-11 02:25:52,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:25:52,821 INFO L225 Difference]: With dead ends: 28 [2021-10-11 02:25:52,822 INFO L226 Difference]: Without dead ends: 28 [2021-10-11 02:25:52,823 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2021-10-11 02:25:52,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2021-10-11 02:25:52,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 24. [2021-10-11 02:25:52,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2021-10-11 02:25:52,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2021-10-11 02:25:52,837 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 16 [2021-10-11 02:25:52,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:25:52,837 INFO L481 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions. [2021-10-11 02:25:52,837 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 02:25:52,837 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2021-10-11 02:25:52,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-11 02:25:52,838 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:25:52,838 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 1, 1, 1, 1] [2021-10-11 02:25:53,065 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:25:53,066 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2021-10-11 02:25:53,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:25:53,066 INFO L82 PathProgramCache]: Analyzing trace with hash 623284378, now seen corresponding path program 1 times [2021-10-11 02:25:53,066 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:25:53,066 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108841492] [2021-10-11 02:25:53,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:25:53,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:25:53,151 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:25:53,151 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108841492] [2021-10-11 02:25:53,151 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1799723634] [2021-10-11 02:25:53,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d40a15ee-5702-4b93-85d0-832a011213de/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:25:53,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:25:53,217 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-11 02:25:53,218 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:25:53,262 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:25:53,263 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:25:53,353 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:25:53,354 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1526933688] [2021-10-11 02:25:53,356 INFO L159 IcfgInterpreter]: Started Sifa with 6 locations of interest [2021-10-11 02:25:53,356 INFO L166 IcfgInterpreter]: Building call graph [2021-10-11 02:25:53,356 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-11 02:25:53,357 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-11 02:25:53,357 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-11 02:25:53,728 INFO L180 IcfgInterpreter]: Interpretation finished [2021-10-11 02:25:53,981 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 02:25:53,981 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-10-11 02:25:53,981 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 12 [2021-10-11 02:25:53,981 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471078162] [2021-10-11 02:25:53,982 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-10-11 02:25:53,982 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:25:53,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-11 02:25:53,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2021-10-11 02:25:53,983 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. Second operand 13 states. [2021-10-11 02:25:54,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:25:54,031 INFO L93 Difference]: Finished difference Result 32 states and 36 transitions. [2021-10-11 02:25:54,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-11 02:25:54,031 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 16 [2021-10-11 02:25:54,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:25:54,032 INFO L225 Difference]: With dead ends: 32 [2021-10-11 02:25:54,032 INFO L226 Difference]: Without dead ends: 32 [2021-10-11 02:25:54,032 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 37 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=89, Invalid=183, Unknown=0, NotChecked=0, Total=272 [2021-10-11 02:25:54,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2021-10-11 02:25:54,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2021-10-11 02:25:54,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2021-10-11 02:25:54,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions. [2021-10-11 02:25:54,036 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 36 transitions. Word has length 16 [2021-10-11 02:25:54,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:25:54,036 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 36 transitions. [2021-10-11 02:25:54,036 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2021-10-11 02:25:54,036 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions. [2021-10-11 02:25:54,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-11 02:25:54,054 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:25:54,054 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 1, 1, 1, 1] [2021-10-11 02:25:54,269 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2021-10-11 02:25:54,270 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2021-10-11 02:25:54,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:25:54,270 INFO L82 PathProgramCache]: Analyzing trace with hash 139507982, now seen corresponding path program 2 times [2021-10-11 02:25:54,270 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:25:54,270 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398007694] [2021-10-11 02:25:54,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:25:54,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:25:54,317 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:25:54,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:25:54,362 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:25:54,387 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-11 02:25:54,387 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 02:25:54,387 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-10-11 02:25:54,434 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:25:54 BoogieIcfgContainer [2021-10-11 02:25:54,434 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:25:54,434 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:25:54,435 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:25:54,435 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:25:54,435 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:25:48" (3/4) ... [2021-10-11 02:25:54,437 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-11 02:25:54,506 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d40a15ee-5702-4b93-85d0-832a011213de/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:25:54,506 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:25:54,507 INFO L168 Benchmark]: Toolchain (without parser) took 7397.32 ms. Allocated memory was 96.5 MB in the beginning and 182.5 MB in the end (delta: 86.0 MB). Free memory was 67.2 MB in the beginning and 147.7 MB in the end (delta: -80.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:25:54,508 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 75.5 MB. Free memory is still 37.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:25:54,508 INFO L168 Benchmark]: CACSL2BoogieTranslator took 287.98 ms. Allocated memory is still 96.5 MB. Free memory was 66.9 MB in the beginning and 73.6 MB in the end (delta: -6.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:25:54,509 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.31 ms. Allocated memory is still 96.5 MB. Free memory was 73.6 MB in the beginning and 72.4 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:25:54,509 INFO L168 Benchmark]: Boogie Preprocessor took 53.52 ms. Allocated memory is still 96.5 MB. Free memory was 72.4 MB in the beginning and 71.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:25:54,509 INFO L168 Benchmark]: RCFGBuilder took 657.36 ms. Allocated memory is still 96.5 MB. Free memory was 71.1 MB in the beginning and 52.6 MB in the end (delta: 18.5 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2021-10-11 02:25:54,510 INFO L168 Benchmark]: TraceAbstraction took 6274.43 ms. Allocated memory was 96.5 MB in the beginning and 182.5 MB in the end (delta: 86.0 MB). Free memory was 52.2 MB in the beginning and 149.8 MB in the end (delta: -97.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:25:54,511 INFO L168 Benchmark]: Witness Printer took 72.21 ms. Allocated memory is still 182.5 MB. Free memory was 149.8 MB in the beginning and 147.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:25:54,517 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 75.5 MB. Free memory is still 37.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 287.98 ms. Allocated memory is still 96.5 MB. Free memory was 66.9 MB in the beginning and 73.6 MB in the end (delta: -6.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 44.31 ms. Allocated memory is still 96.5 MB. Free memory was 73.6 MB in the beginning and 72.4 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 53.52 ms. Allocated memory is still 96.5 MB. Free memory was 72.4 MB in the beginning and 71.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 657.36 ms. Allocated memory is still 96.5 MB. Free memory was 71.1 MB in the beginning and 52.6 MB in the end (delta: 18.5 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 6274.43 ms. Allocated memory was 96.5 MB in the beginning and 182.5 MB in the end (delta: 86.0 MB). Free memory was 52.2 MB in the beginning and 149.8 MB in the end (delta: -97.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 72.21 ms. Allocated memory is still 182.5 MB. Free memory was 149.8 MB in the beginning and 147.7 MB in the end (delta: 2.1 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: 22]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L8] int *array = alloca(10 * sizeof(int)); [L10] int i = 0; [L10] COND TRUE i < 10 [L11] array[i] = i [L10] ++i [L10] COND TRUE i < 10 [L11] array[i] = i [L10] ++i [L10] COND TRUE i < 10 [L11] array[i] = i [L10] ++i [L10] COND TRUE i < 10 [L11] array[i] = i [L10] ++i [L10] COND TRUE i < 10 [L11] array[i] = i [L10] ++i [L10] COND TRUE i < 10 [L11] array[i] = i [L10] ++i [L10] COND TRUE i < 10 [L11] array[i] = i [L10] ++i [L10] COND TRUE i < 10 [L11] array[i] = i [L10] ++i [L10] COND TRUE i < 10 [L11] array[i] = i [L10] ++i [L10] COND TRUE i < 10 [L11] array[i] = i [L10] ++i [L10] COND FALSE !(i < 10) [L14] return array; [L19] int *numbers = getNumbers(); [L21] int i = 0; [L21] COND TRUE i < 10 [L22] numbers + i - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 6.1s, OverallIterations: 9, TraceHistogramMax: 10, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 57 SDtfs, 78 SDslu, 65 SDs, 0 SdLazy, 132 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 167 GetRequests, 101 SyntacticMatches, 4 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=8, 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, 8 MinimizatonAttempts, 20 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 150 NumberOfCodeBlocks, 132 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 164 ConstructedInterpolants, 0 QuantifiedInterpolants, 12936 SizeOfPredicates, 14 NumberOfNonLiveVariables, 306 ConjunctsInSsa, 51 ConjunctsInUnsatCore, 18 InterpolantComputations, 6 PerfectInterpolantSequences, 120/298 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...