./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/xcsp/AllInterval-006.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e4f4af-bed0-4d0a-b52b-5924d6c2440d/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e4f4af-bed0-4d0a-b52b-5924d6c2440d/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_69e4f4af-bed0-4d0a-b52b-5924d6c2440d/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e4f4af-bed0-4d0a-b52b-5924d6c2440d/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/xcsp/AllInterval-006.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e4f4af-bed0-4d0a-b52b-5924d6c2440d/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e4f4af-bed0-4d0a-b52b-5924d6c2440d/bin/utaipan-WLngWcDbfI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 50c5e818ba05d4e8fa241dc9220a809d016175eb ......................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:25:54,172 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:25:54,189 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:25:54,237 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:25:54,237 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:25:54,239 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:25:54,241 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:25:54,243 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:25:54,246 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:25:54,247 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:25:54,248 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:25:54,250 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:25:54,250 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:25:54,252 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:25:54,253 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:25:54,255 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:25:54,256 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:25:54,257 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:25:54,260 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:25:54,262 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:25:54,264 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:25:54,269 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:25:54,271 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:25:54,272 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:25:54,276 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:25:54,276 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:25:54,277 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:25:54,278 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:25:54,279 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:25:54,280 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:25:54,280 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:25:54,290 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:25:54,291 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:25:54,292 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:25:54,294 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:25:54,294 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:25:54,295 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:25:54,295 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:25:54,295 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:25:54,297 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:25:54,297 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:25:54,305 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e4f4af-bed0-4d0a-b52b-5924d6c2440d/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:25:54,343 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:25:54,344 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:25:54,345 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:25:54,345 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:25:54,345 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:25:54,345 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:25:54,346 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:25:54,346 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:25:54,346 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:25:54,346 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:25:54,347 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:25:54,347 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:25:54,347 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:25:54,348 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:25:54,348 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:25:54,349 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:25:54,349 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:25:54,349 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:25:54,349 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:25:54,350 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:25:54,350 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:25:54,350 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:25:54,350 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:25:54,351 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:25:54,351 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:25:54,351 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:25:54,351 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:25:54,352 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:25:54,352 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:25:54,352 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:25:54,353 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:25:54,353 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:25:54,353 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:25:54,353 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:25:54,354 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:25:54,354 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:25:54,354 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:25:54,354 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:25:54,355 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:25:54,355 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_69e4f4af-bed0-4d0a-b52b-5924d6c2440d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e4f4af-bed0-4d0a-b52b-5924d6c2440d/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 50c5e818ba05d4e8fa241dc9220a809d016175eb [2021-10-11 02:25:54,613 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:25:54,634 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:25:54,636 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:25:54,638 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:25:54,639 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:25:54,640 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e4f4af-bed0-4d0a-b52b-5924d6c2440d/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/xcsp/AllInterval-006.c [2021-10-11 02:25:54,703 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e4f4af-bed0-4d0a-b52b-5924d6c2440d/bin/utaipan-WLngWcDbfI/data/51f980b3f/ebfe2a32f18248b3a5839715253ec08e/FLAGad3932a19 [2021-10-11 02:25:55,150 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:25:55,150 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e4f4af-bed0-4d0a-b52b-5924d6c2440d/sv-benchmarks/c/xcsp/AllInterval-006.c [2021-10-11 02:25:55,160 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e4f4af-bed0-4d0a-b52b-5924d6c2440d/bin/utaipan-WLngWcDbfI/data/51f980b3f/ebfe2a32f18248b3a5839715253ec08e/FLAGad3932a19 [2021-10-11 02:25:55,509 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e4f4af-bed0-4d0a-b52b-5924d6c2440d/bin/utaipan-WLngWcDbfI/data/51f980b3f/ebfe2a32f18248b3a5839715253ec08e [2021-10-11 02:25:55,511 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:25:55,514 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:25:55,516 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:25:55,516 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:25:55,524 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:25:55,524 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:25:55" (1/1) ... [2021-10-11 02:25:55,526 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74b9eea2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:55, skipping insertion in model container [2021-10-11 02:25:55,526 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:25:55" (1/1) ... [2021-10-11 02:25:55,535 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:25:55,559 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:25:55,772 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e4f4af-bed0-4d0a-b52b-5924d6c2440d/sv-benchmarks/c/xcsp/AllInterval-006.c[3098,3111] [2021-10-11 02:25:55,777 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:25:55,786 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:25:55,817 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e4f4af-bed0-4d0a-b52b-5924d6c2440d/sv-benchmarks/c/xcsp/AllInterval-006.c[3098,3111] [2021-10-11 02:25:55,819 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:25:55,834 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:25:55,834 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:55 WrapperNode [2021-10-11 02:25:55,834 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:25:55,836 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:25:55,836 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:25:55,836 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:25:55,844 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:55" (1/1) ... [2021-10-11 02:25:55,852 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:55" (1/1) ... [2021-10-11 02:25:55,917 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:25:55,918 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:25:55,918 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:25:55,918 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:25:55,927 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:55" (1/1) ... [2021-10-11 02:25:55,927 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:55" (1/1) ... [2021-10-11 02:25:55,931 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:55" (1/1) ... [2021-10-11 02:25:55,932 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:55" (1/1) ... [2021-10-11 02:25:55,941 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:55" (1/1) ... [2021-10-11 02:25:55,947 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:55" (1/1) ... [2021-10-11 02:25:55,950 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:55" (1/1) ... [2021-10-11 02:25:55,955 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:25:55,956 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:25:55,957 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:25:55,957 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:25:55,958 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:55" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e4f4af-bed0-4d0a-b52b-5924d6c2440d/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 02:25:56,058 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:25:56,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:25:56,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 02:25:56,059 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:25:57,690 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:25:57,691 INFO L299 CfgBuilder]: Removed 108 assume(true) statements. [2021-10-11 02:25:57,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:25:57 BoogieIcfgContainer [2021-10-11 02:25:57,695 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:25:57,698 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:25:57,698 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:25:57,701 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:25:57,702 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:25:55" (1/3) ... [2021-10-11 02:25:57,703 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@694990d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:25:57, skipping insertion in model container [2021-10-11 02:25:57,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:55" (2/3) ... [2021-10-11 02:25:57,704 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@694990d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:25:57, skipping insertion in model container [2021-10-11 02:25:57,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:25:57" (3/3) ... [2021-10-11 02:25:57,705 INFO L111 eAbstractionObserver]: Analyzing ICFG AllInterval-006.c [2021-10-11 02:25:57,720 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:25:57,723 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 02:25:57,738 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 02:25:57,777 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:25:57,777 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:25:57,778 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:25:57,778 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:25:57,778 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:25:57,778 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:25:57,778 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:25:57,778 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:25:57,790 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states. [2021-10-11 02:25:57,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-10-11 02:25:57,795 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:25:57,796 INFO L422 BasicCegarLoop]: trace histogram [1, 1] [2021-10-11 02:25:57,796 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:25:57,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:25:57,802 INFO L82 PathProgramCache]: Analyzing trace with hash 19280, now seen corresponding path program 1 times [2021-10-11 02:25:57,812 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:25:57,812 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023744139] [2021-10-11 02:25:57,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:25:58,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:25:58,605 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:25:58,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:25:58,967 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:25:58,990 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-11 02:25:58,991 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 02:25:58,991 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 02:25:59,038 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:25:59 BoogieIcfgContainer [2021-10-11 02:25:59,038 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:25:59,041 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:25:59,041 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:25:59,041 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:25:59,042 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:25:57" (3/4) ... [2021-10-11 02:25:59,044 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-11 02:25:59,124 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e4f4af-bed0-4d0a-b52b-5924d6c2440d/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:25:59,125 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:25:59,127 INFO L168 Benchmark]: Toolchain (without parser) took 3611.52 ms. Allocated memory was 117.4 MB in the beginning and 153.1 MB in the end (delta: 35.7 MB). Free memory was 79.5 MB in the beginning and 64.7 MB in the end (delta: 14.8 MB). Peak memory consumption was 49.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:25:59,127 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 117.4 MB. Free memory is still 95.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:25:59,128 INFO L168 Benchmark]: CACSL2BoogieTranslator took 318.85 ms. Allocated memory is still 117.4 MB. Free memory was 79.3 MB in the beginning and 91.5 MB in the end (delta: -12.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:25:59,128 INFO L168 Benchmark]: Boogie Procedure Inliner took 81.47 ms. Allocated memory is still 117.4 MB. Free memory was 91.5 MB in the beginning and 88.6 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:25:59,129 INFO L168 Benchmark]: Boogie Preprocessor took 37.77 ms. Allocated memory is still 117.4 MB. Free memory was 88.6 MB in the beginning and 86.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:25:59,129 INFO L168 Benchmark]: RCFGBuilder took 1739.00 ms. Allocated memory was 117.4 MB in the beginning and 153.1 MB in the end (delta: 35.7 MB). Free memory was 86.6 MB in the beginning and 124.7 MB in the end (delta: -38.2 MB). Peak memory consumption was 80.6 MB. Max. memory is 16.1 GB. [2021-10-11 02:25:59,130 INFO L168 Benchmark]: TraceAbstraction took 1341.06 ms. Allocated memory is still 153.1 MB. Free memory was 124.7 MB in the beginning and 66.8 MB in the end (delta: 57.9 MB). Peak memory consumption was 57.9 MB. Max. memory is 16.1 GB. [2021-10-11 02:25:59,131 INFO L168 Benchmark]: Witness Printer took 83.76 ms. Allocated memory is still 153.1 MB. Free memory was 66.8 MB in the beginning and 64.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:25:59,133 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 117.4 MB. Free memory is still 95.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 318.85 ms. Allocated memory is still 117.4 MB. Free memory was 79.3 MB in the beginning and 91.5 MB in the end (delta: -12.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 81.47 ms. Allocated memory is still 117.4 MB. Free memory was 91.5 MB in the beginning and 88.6 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 37.77 ms. Allocated memory is still 117.4 MB. Free memory was 88.6 MB in the beginning and 86.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1739.00 ms. Allocated memory was 117.4 MB in the beginning and 153.1 MB in the end (delta: 35.7 MB). Free memory was 86.6 MB in the beginning and 124.7 MB in the end (delta: -38.2 MB). Peak memory consumption was 80.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1341.06 ms. Allocated memory is still 153.1 MB. Free memory was 124.7 MB in the beginning and 66.8 MB in the end (delta: 57.9 MB). Peak memory consumption was 57.9 MB. Max. memory is 16.1 GB. * Witness Printer took 83.76 ms. Allocated memory is still 153.1 MB. Free memory was 66.8 MB in the beginning and 64.7 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: 113]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L24] int cond0; [L25] int dummy = 0; [L26] int N; [L27] int var0; [L28] var0 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L31] int var1; [L32] var1 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L35] int var2; [L36] var2 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L39] int var3; [L40] var3 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L43] int var4; [L44] var4 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L47] int var5; [L48] var5 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L51] int var6; [L52] var6 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L55] int var7; [L56] var7 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L59] int var8; [L60] var8 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L63] int var9; [L64] var9 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L67] int var10; [L68] var10 = __VERIFIER_nondet_int() [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L71] int myvar0 = 1; [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L20] COND FALSE !(!cond) [L97] int var_for_abs; [L98] var_for_abs = var0 - var1 [L99] EXPR (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L99] var_for_abs = (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L20] COND FALSE !(!cond) [L101] var_for_abs = var1 - var2 [L102] EXPR (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L102] var_for_abs = (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L20] COND FALSE !(!cond) [L104] var_for_abs = var2 - var3 [L105] EXPR (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L105] var_for_abs = (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L20] COND FALSE !(!cond) [L107] var_for_abs = var3 - var4 [L108] EXPR (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L108] var_for_abs = (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L20] COND FALSE !(!cond) [L110] var_for_abs = var4 - var5 [L111] EXPR (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L111] var_for_abs = (var_for_abs >= 0) ? var_for_abs : var_for_abs * (-1) [L20] COND FALSE !(!cond) [L113] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 4 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.2s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 2 NumberOfCodeBlocks, 2 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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...