./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memset_-write.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_617c6f5b-f05e-49e4-a816-7df52ae0cdeb/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_617c6f5b-f05e-49e4-a816-7df52ae0cdeb/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_617c6f5b-f05e-49e4-a816-7df52ae0cdeb/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_617c6f5b-f05e-49e4-a816-7df52ae0cdeb/bin/utaipan-WLngWcDbfI/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memset_-write.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_617c6f5b-f05e-49e4-a816-7df52ae0cdeb/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_617c6f5b-f05e-49e4-a816-7df52ae0cdeb/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 220c5b7d1335976595fe0a31f6bacc2d390016c7 ...................................................................................................................................................................................................................................................................................................................... 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 02:29:00,688 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:29:00,691 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:29:00,725 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:29:00,725 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:29:00,727 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:29:00,728 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:29:00,731 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:29:00,733 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:29:00,735 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:29:00,736 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:29:00,738 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:29:00,738 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:29:00,740 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:29:00,741 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:29:00,742 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:29:00,743 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:29:00,745 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:29:00,747 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:29:00,750 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:29:00,758 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:29:00,761 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:29:00,762 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:29:00,763 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:29:00,770 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:29:00,773 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:29:00,773 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:29:00,775 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:29:00,779 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:29:00,780 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:29:00,780 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:29:00,781 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:29:00,783 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:29:00,784 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:29:00,787 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:29:00,787 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:29:00,789 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:29:00,790 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:29:00,790 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:29:00,791 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:29:00,792 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:29:00,794 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_617c6f5b-f05e-49e4-a816-7df52ae0cdeb/bin/utaipan-WLngWcDbfI/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-10-11 02:29:00,836 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:29:00,840 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:29:00,842 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:29:00,848 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:29:00,849 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:29:00,849 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:29:00,849 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:29:00,849 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:29:00,849 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:29:00,850 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:29:00,851 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:29:00,851 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:29:00,851 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:29:00,852 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:29:00,852 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:29:00,853 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 02:29:00,853 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 02:29:00,853 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:29:00,853 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:29:00,854 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-11 02:29:00,854 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:29:00,854 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:29:00,854 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:29:00,854 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-11 02:29:00,855 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-11 02:29:00,855 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-11 02:29:00,857 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:29:00,857 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:29:00,857 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:29:00,858 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:29:00,858 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:29:00,858 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:29:00,859 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:29:00,859 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:29:00,859 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:29:00,859 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:29:00,859 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:29:00,860 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:29:00,860 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:29:00,860 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_617c6f5b-f05e-49e4-a816-7df52ae0cdeb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_617c6f5b-f05e-49e4-a816-7df52ae0cdeb/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 220c5b7d1335976595fe0a31f6bacc2d390016c7 [2021-10-11 02:29:01,112 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:29:01,144 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:29:01,149 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:29:01,150 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:29:01,151 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:29:01,152 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_617c6f5b-f05e-49e4-a816-7df52ae0cdeb/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/ldv-memsafety/memset_-write.c [2021-10-11 02:29:01,241 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_617c6f5b-f05e-49e4-a816-7df52ae0cdeb/bin/utaipan-WLngWcDbfI/data/a792a776d/bab650e8a0ef47e5b39525eecf27e959/FLAG7e6b7245a [2021-10-11 02:29:01,714 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:29:01,715 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_617c6f5b-f05e-49e4-a816-7df52ae0cdeb/sv-benchmarks/c/ldv-memsafety/memset_-write.c [2021-10-11 02:29:01,720 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_617c6f5b-f05e-49e4-a816-7df52ae0cdeb/bin/utaipan-WLngWcDbfI/data/a792a776d/bab650e8a0ef47e5b39525eecf27e959/FLAG7e6b7245a [2021-10-11 02:29:02,210 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_617c6f5b-f05e-49e4-a816-7df52ae0cdeb/bin/utaipan-WLngWcDbfI/data/a792a776d/bab650e8a0ef47e5b39525eecf27e959 [2021-10-11 02:29:02,218 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:29:02,220 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:29:02,223 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:29:02,223 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:29:02,227 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:29:02,228 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:29:02" (1/1) ... [2021-10-11 02:29:02,230 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20818dac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:02, skipping insertion in model container [2021-10-11 02:29:02,230 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:29:02" (1/1) ... [2021-10-11 02:29:02,238 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:29:02,251 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:29:02,372 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:29:02,380 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:29:02,414 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:29:02,432 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:29:02,433 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:02 WrapperNode [2021-10-11 02:29:02,433 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:29:02,434 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:29:02,434 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:29:02,434 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:29:02,440 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:02" (1/1) ... [2021-10-11 02:29:02,446 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:02" (1/1) ... [2021-10-11 02:29:02,464 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:29:02,464 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:29:02,465 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:29:02,465 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:29:02,473 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:02" (1/1) ... [2021-10-11 02:29:02,473 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:02" (1/1) ... [2021-10-11 02:29:02,475 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:02" (1/1) ... [2021-10-11 02:29:02,475 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:02" (1/1) ... [2021-10-11 02:29:02,478 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:02" (1/1) ... [2021-10-11 02:29:02,483 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:02" (1/1) ... [2021-10-11 02:29:02,485 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:02" (1/1) ... [2021-10-11 02:29:02,493 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:29:02,494 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:29:02,495 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:29:02,495 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:29:02,498 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:02" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_617c6f5b-f05e-49e4-a816-7df52ae0cdeb/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 02:29:02,574 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:29:02,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:29:02,575 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:29:02,575 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-11 02:29:02,768 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:29:02,769 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-11 02:29:02,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:29:02 BoogieIcfgContainer [2021-10-11 02:29:02,771 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:29:02,773 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:29:02,773 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:29:02,778 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:29:02,778 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:29:02" (1/3) ... [2021-10-11 02:29:02,779 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b090dbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:29:02, skipping insertion in model container [2021-10-11 02:29:02,780 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:02" (2/3) ... [2021-10-11 02:29:02,780 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b090dbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:29:02, skipping insertion in model container [2021-10-11 02:29:02,780 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:29:02" (3/3) ... [2021-10-11 02:29:02,782 INFO L111 eAbstractionObserver]: Analyzing ICFG memset_-write.c [2021-10-11 02:29:02,795 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:29:02,799 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2021-10-11 02:29:02,809 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-11 02:29:02,828 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:29:02,828 INFO L378 AbstractCegarLoop]: Hoare is false [2021-10-11 02:29:02,828 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:29:02,829 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:29:02,829 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:29:02,829 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:29:02,829 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:29:02,829 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:29:02,843 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2021-10-11 02:29:02,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-10-11 02:29:02,849 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:29:02,850 INFO L422 BasicCegarLoop]: trace histogram [1, 1] [2021-10-11 02:29:02,851 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2021-10-11 02:29:02,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:29:02,857 INFO L82 PathProgramCache]: Analyzing trace with hash 1553, now seen corresponding path program 1 times [2021-10-11 02:29:02,867 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:29:02,867 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025509479] [2021-10-11 02:29:02,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:29:02,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:29:03,048 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 02:29:03,049 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025509479] [2021-10-11 02:29:03,049 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:29:03,050 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-11 02:29:03,050 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734754554] [2021-10-11 02:29:03,055 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:29:03,069 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:29:03,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:29:03,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:29:03,092 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 3 states. [2021-10-11 02:29:03,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:29:03,154 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2021-10-11 02:29:03,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:29:03,156 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 2 [2021-10-11 02:29:03,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:29:03,163 INFO L225 Difference]: With dead ends: 8 [2021-10-11 02:29:03,163 INFO L226 Difference]: Without dead ends: 7 [2021-10-11 02:29:03,164 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 02:29:03,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2021-10-11 02:29:03,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2021-10-11 02:29:03,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-10-11 02:29:03,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2021-10-11 02:29:03,199 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 2 [2021-10-11 02:29:03,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:29:03,200 INFO L481 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2021-10-11 02:29:03,200 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:29:03,200 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2021-10-11 02:29:03,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-11 02:29:03,200 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:29:03,200 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-11 02:29:03,201 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 02:29:03,201 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2021-10-11 02:29:03,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:29:03,202 INFO L82 PathProgramCache]: Analyzing trace with hash 48179, now seen corresponding path program 1 times [2021-10-11 02:29:03,202 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:29:03,203 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844065274] [2021-10-11 02:29:03,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:29:03,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:29:03,231 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:29:03,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:29:03,241 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:29:03,258 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-11 02:29:03,258 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 02:29:03,259 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 02:29:03,271 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr : $Pointer$ not handled [2021-10-11 02:29:03,276 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr : $Pointer$ not handled [2021-10-11 02:29:03,276 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr : $Pointer$ not handled [2021-10-11 02:29:03,277 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr : $Pointer$ not handled [2021-10-11 02:29:03,277 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr : $Pointer$ not handled [2021-10-11 02:29:03,277 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr : $Pointer$ not handled [2021-10-11 02:29:03,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:29:03 BoogieIcfgContainer [2021-10-11 02:29:03,297 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:29:03,298 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:29:03,298 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:29:03,298 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:29:03,299 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:29:02" (3/4) ... [2021-10-11 02:29:03,301 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-11 02:29:03,301 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr : $Pointer$ not handled [2021-10-11 02:29:03,302 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr : $Pointer$ not handled [2021-10-11 02:29:03,302 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr : $Pointer$ not handled [2021-10-11 02:29:03,302 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr : $Pointer$ not handled [2021-10-11 02:29:03,302 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr : $Pointer$ not handled [2021-10-11 02:29:03,303 WARN L417 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr : $Pointer$ not handled [2021-10-11 02:29:03,331 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_617c6f5b-f05e-49e4-a816-7df52ae0cdeb/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:29:03,331 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:29:03,334 INFO L168 Benchmark]: Toolchain (without parser) took 1112.37 ms. Allocated memory was 100.7 MB in the beginning and 132.1 MB in the end (delta: 31.5 MB). Free memory was 71.0 MB in the beginning and 71.3 MB in the end (delta: -279.6 kB). Peak memory consumption was 30.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:03,335 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 100.7 MB. Free memory is still 53.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:29:03,336 INFO L168 Benchmark]: CACSL2BoogieTranslator took 210.49 ms. Allocated memory was 100.7 MB in the beginning and 132.1 MB in the end (delta: 31.5 MB). Free memory was 70.8 MB in the beginning and 108.9 MB in the end (delta: -38.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:03,337 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.18 ms. Allocated memory is still 132.1 MB. Free memory was 108.9 MB in the beginning and 107.5 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:29:03,339 INFO L168 Benchmark]: Boogie Preprocessor took 29.19 ms. Allocated memory is still 132.1 MB. Free memory was 107.5 MB in the beginning and 106.4 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:03,340 INFO L168 Benchmark]: RCFGBuilder took 276.71 ms. Allocated memory is still 132.1 MB. Free memory was 106.4 MB in the beginning and 93.9 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:03,341 INFO L168 Benchmark]: TraceAbstraction took 524.22 ms. Allocated memory is still 132.1 MB. Free memory was 93.4 MB in the beginning and 72.9 MB in the end (delta: 20.5 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:03,342 INFO L168 Benchmark]: Witness Printer took 34.02 ms. Allocated memory is still 132.1 MB. Free memory was 72.9 MB in the beginning and 71.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:03,348 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 100.7 MB. Free memory is still 53.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 210.49 ms. Allocated memory was 100.7 MB in the beginning and 132.1 MB in the end (delta: 31.5 MB). Free memory was 70.8 MB in the beginning and 108.9 MB in the end (delta: -38.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 30.18 ms. Allocated memory is still 132.1 MB. Free memory was 108.9 MB in the beginning and 107.5 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 29.19 ms. Allocated memory is still 132.1 MB. Free memory was 107.5 MB in the beginning and 106.4 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 276.71 ms. Allocated memory is still 132.1 MB. Free memory was 106.4 MB in the beginning and 93.9 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 524.22 ms. Allocated memory is still 132.1 MB. Free memory was 93.4 MB in the beginning and 72.9 MB in the end (delta: 20.5 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * Witness Printer took 34.02 ms. Allocated memory is still 132.1 MB. Free memory was 72.9 MB in the beginning and 71.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.C_memset_#ptr : $Pointer$ not handled * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: -1]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L26] struct ppp_comp_stats cstats ; - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4 SDtfs, 4 SDslu, 0 SDs, 0 SdLazy, 7 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 1 ConstructedInterpolants, 0 QuantifiedInterpolants, 5 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...