./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 a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_7d941730-435f-449a-ae99-06b35c86d641/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_7d941730-435f-449a-ae99-06b35c86d641/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7d941730-435f-449a-ae99-06b35c86d641/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7d941730-435f-449a-ae99-06b35c86d641/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/xcsp/AllInterval-006.c -s /tmp/vcloud-vcloud-master/worker/run_dir_7d941730-435f-449a-ae99-06b35c86d641/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7d941730-435f-449a-ae99-06b35c86d641/bin/utaipan --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-a4ecdab [2020-11-22 13:03:57,282 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 13:03:57,284 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 13:03:57,360 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 13:03:57,361 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 13:03:57,366 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 13:03:57,368 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 13:03:57,372 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 13:03:57,374 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 13:03:57,379 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 13:03:57,380 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 13:03:57,382 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 13:03:57,383 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 13:03:57,386 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 13:03:57,387 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 13:03:57,389 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 13:03:57,390 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 13:03:57,393 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 13:03:57,397 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 13:03:57,403 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 13:03:57,405 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 13:03:57,406 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 13:03:57,408 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 13:03:57,409 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 13:03:57,417 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 13:03:57,418 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 13:03:57,418 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 13:03:57,420 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 13:03:57,420 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 13:03:57,421 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 13:03:57,422 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 13:03:57,423 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 13:03:57,425 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 13:03:57,426 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 13:03:57,427 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 13:03:57,427 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 13:03:57,428 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 13:03:57,428 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 13:03:57,428 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 13:03:57,429 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 13:03:57,430 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 13:03:57,432 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7d941730-435f-449a-ae99-06b35c86d641/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-22 13:03:57,462 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 13:03:57,462 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 13:03:57,463 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 13:03:57,463 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 13:03:57,463 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 13:03:57,464 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 13:03:57,464 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-22 13:03:57,464 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 13:03:57,464 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 13:03:57,464 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-22 13:03:57,464 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-22 13:03:57,465 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 13:03:57,465 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-22 13:03:57,465 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-22 13:03:57,465 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-22 13:03:57,466 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 13:03:57,466 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 13:03:57,466 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-22 13:03:57,466 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 13:03:57,467 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 13:03:57,467 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 13:03:57,467 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 13:03:57,467 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 13:03:57,467 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 13:03:57,467 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 13:03:57,468 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 13:03:57,468 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 13:03:57,468 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 13:03:57,468 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 13:03:57,469 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 13:03:57,469 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 13:03:57,469 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:03:57,469 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 13:03:57,469 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 13:03:57,470 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 13:03:57,470 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-22 13:03:57,470 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-22 13:03:57,470 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 13:03:57,470 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 13:03:57,471 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 13:03:57,471 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_7d941730-435f-449a-ae99-06b35c86d641/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_7d941730-435f-449a-ae99-06b35c86d641/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 50c5e818ba05d4e8fa241dc9220a809d016175eb [2020-11-22 13:03:57,738 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 13:03:57,776 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 13:03:57,781 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 13:03:57,782 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 13:03:57,783 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 13:03:57,784 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7d941730-435f-449a-ae99-06b35c86d641/bin/utaipan/../../sv-benchmarks/c/xcsp/AllInterval-006.c [2020-11-22 13:03:57,866 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7d941730-435f-449a-ae99-06b35c86d641/bin/utaipan/data/567684fef/07e9f64fee4e4e11a8d43fa0cd8a29be/FLAGa4d060fbe [2020-11-22 13:03:58,409 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 13:03:58,410 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7d941730-435f-449a-ae99-06b35c86d641/sv-benchmarks/c/xcsp/AllInterval-006.c [2020-11-22 13:03:58,421 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7d941730-435f-449a-ae99-06b35c86d641/bin/utaipan/data/567684fef/07e9f64fee4e4e11a8d43fa0cd8a29be/FLAGa4d060fbe [2020-11-22 13:03:58,760 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7d941730-435f-449a-ae99-06b35c86d641/bin/utaipan/data/567684fef/07e9f64fee4e4e11a8d43fa0cd8a29be [2020-11-22 13:03:58,762 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 13:03:58,765 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 13:03:58,781 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 13:03:58,781 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 13:03:58,784 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 13:03:58,784 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:03:58" (1/1) ... [2020-11-22 13:03:58,786 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4084df76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:03:58, skipping insertion in model container [2020-11-22 13:03:58,786 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:03:58" (1/1) ... [2020-11-22 13:03:58,793 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 13:03:58,813 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:03:59,009 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:03:59,018 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 13:03:59,047 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:03:59,061 INFO L208 MainTranslator]: Completed translation [2020-11-22 13:03:59,061 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:03:59 WrapperNode [2020-11-22 13:03:59,062 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 13:03:59,063 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 13:03:59,063 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 13:03:59,063 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 13:03:59,072 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:03:59" (1/1) ... [2020-11-22 13:03:59,092 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:03:59" (1/1) ... [2020-11-22 13:03:59,144 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 13:03:59,144 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 13:03:59,145 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 13:03:59,145 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 13:03:59,159 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:03:59" (1/1) ... [2020-11-22 13:03:59,159 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:03:59" (1/1) ... [2020-11-22 13:03:59,173 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:03:59" (1/1) ... [2020-11-22 13:03:59,173 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:03:59" (1/1) ... [2020-11-22 13:03:59,180 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:03:59" (1/1) ... [2020-11-22 13:03:59,201 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:03:59" (1/1) ... [2020-11-22 13:03:59,213 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:03:59" (1/1) ... [2020-11-22 13:03:59,217 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 13:03:59,218 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 13:03:59,218 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 13:03:59,218 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 13:03:59,224 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:03:59" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7d941730-435f-449a-ae99-06b35c86d641/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:03:59,293 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 13:03:59,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 13:03:59,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-22 13:03:59,294 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 13:04:01,197 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 13:04:01,197 INFO L298 CfgBuilder]: Removed 110 assume(true) statements. [2020-11-22 13:04:01,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:04:01 BoogieIcfgContainer [2020-11-22 13:04:01,199 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 13:04:01,201 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 13:04:01,201 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 13:04:01,205 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 13:04:01,205 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:03:58" (1/3) ... [2020-11-22 13:04:01,206 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f188a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:04:01, skipping insertion in model container [2020-11-22 13:04:01,206 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:03:59" (2/3) ... [2020-11-22 13:04:01,206 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f188a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:04:01, skipping insertion in model container [2020-11-22 13:04:01,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:04:01" (3/3) ... [2020-11-22 13:04:01,209 INFO L111 eAbstractionObserver]: Analyzing ICFG AllInterval-006.c [2020-11-22 13:04:01,219 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 13:04:01,247 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-22 13:04:01,260 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-22 13:04:01,296 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 13:04:01,297 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 13:04:01,297 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 13:04:01,297 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 13:04:01,297 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 13:04:01,297 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 13:04:01,297 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 13:04:01,297 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 13:04:01,311 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states. [2020-11-22 13:04:01,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2020-11-22 13:04:01,316 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:04:01,316 INFO L422 BasicCegarLoop]: trace histogram [1, 1] [2020-11-22 13:04:01,317 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:04:01,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:04:01,322 INFO L82 PathProgramCache]: Analyzing trace with hash 19373, now seen corresponding path program 1 times [2020-11-22 13:04:01,333 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:04:01,333 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742819294] [2020-11-22 13:04:01,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:04:02,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 13:04:02,100 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 13:04:02,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 13:04:02,402 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 13:04:02,441 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-11-22 13:04:02,442 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-22 13:04:02,442 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-22 13:04:02,490 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:04:02 BoogieIcfgContainer [2020-11-22 13:04:02,490 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 13:04:02,493 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 13:04:02,493 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 13:04:02,493 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 13:04:02,494 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:04:01" (3/4) ... [2020-11-22 13:04:02,504 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-22 13:04:02,587 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_7d941730-435f-449a-ae99-06b35c86d641/bin/utaipan/witness.graphml [2020-11-22 13:04:02,587 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 13:04:02,589 INFO L168 Benchmark]: Toolchain (without parser) took 3823.33 ms. Allocated memory was 94.4 MB in the beginning and 182.5 MB in the end (delta: 88.1 MB). Free memory was 58.7 MB in the beginning and 153.6 MB in the end (delta: -94.9 MB). Peak memory consumption was 58.3 MB. Max. memory is 16.1 GB. [2020-11-22 13:04:02,590 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 94.4 MB. Free memory is still 75.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:04:02,591 INFO L168 Benchmark]: CACSL2BoogieTranslator took 280.80 ms. Allocated memory is still 94.4 MB. Free memory was 58.5 MB in the beginning and 70.8 MB in the end (delta: -12.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-22 13:04:02,591 INFO L168 Benchmark]: Boogie Procedure Inliner took 81.07 ms. Allocated memory is still 94.4 MB. Free memory was 70.8 MB in the beginning and 67.8 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-22 13:04:02,592 INFO L168 Benchmark]: Boogie Preprocessor took 72.97 ms. Allocated memory is still 94.4 MB. Free memory was 67.8 MB in the beginning and 66.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:04:02,592 INFO L168 Benchmark]: RCFGBuilder took 1981.21 ms. Allocated memory was 94.4 MB in the beginning and 134.2 MB in the end (delta: 39.8 MB). Free memory was 66.0 MB in the beginning and 52.5 MB in the end (delta: 13.5 MB). Peak memory consumption was 56.2 MB. Max. memory is 16.1 GB. [2020-11-22 13:04:02,593 INFO L168 Benchmark]: TraceAbstraction took 1289.83 ms. Allocated memory is still 134.2 MB. Free memory was 52.5 MB in the beginning and 42.2 MB in the end (delta: 10.3 MB). Peak memory consumption was 9.2 MB. Max. memory is 16.1 GB. [2020-11-22 13:04:02,594 INFO L168 Benchmark]: Witness Printer took 94.71 ms. Allocated memory was 134.2 MB in the beginning and 182.5 MB in the end (delta: 48.2 MB). Free memory was 42.2 MB in the beginning and 153.6 MB in the end (delta: -111.5 MB). Peak memory consumption was 2.8 MB. Max. memory is 16.1 GB. [2020-11-22 13:04:02,597 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 94.4 MB. Free memory is still 75.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 280.80 ms. Allocated memory is still 94.4 MB. Free memory was 58.5 MB in the beginning and 70.8 MB in the end (delta: -12.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 81.07 ms. Allocated memory is still 94.4 MB. Free memory was 70.8 MB in the beginning and 67.8 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 72.97 ms. Allocated memory is still 94.4 MB. Free memory was 67.8 MB in the beginning and 66.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1981.21 ms. Allocated memory was 94.4 MB in the beginning and 134.2 MB in the end (delta: 39.8 MB). Free memory was 66.0 MB in the beginning and 52.5 MB in the end (delta: 13.5 MB). Peak memory consumption was 56.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1289.83 ms. Allocated memory is still 134.2 MB. Free memory was 52.5 MB in the beginning and 42.2 MB in the end (delta: 10.3 MB). Peak memory consumption was 9.2 MB. Max. memory is 16.1 GB. * Witness Printer took 94.71 ms. Allocated memory was 134.2 MB in the beginning and 182.5 MB in the end (delta: 48.2 MB). Free memory was 42.2 MB in the beginning and 153.6 MB in the end (delta: -111.5 MB). Peak memory consumption was 2.8 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 17]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_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) [L17] __assert_fail("0", "AllInterval-006.c", 5, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 4 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.1s, 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, 0.6s 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...