./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/NonTerminationSimple3.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf0a8f3-c78b-4117-b93f-a2ade9e177bf/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf0a8f3-c78b-4117-b93f-a2ade9e177bf/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_fcf0a8f3-c78b-4117-b93f-a2ade9e177bf/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf0a8f3-c78b-4117-b93f-a2ade9e177bf/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted/NonTerminationSimple3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf0a8f3-c78b-4117-b93f-a2ade9e177bf/bin/utaipan-WLngWcDbfI/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf0a8f3-c78b-4117-b93f-a2ade9e177bf/bin/utaipan-WLngWcDbfI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 3212fd9063decb133bdb443685d0895cff5d8c70 ......................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW) --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:24:28,121 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:24:28,123 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:24:28,172 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:24:28,173 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:24:28,174 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:24:28,176 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:24:28,178 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:24:28,181 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:24:28,182 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:24:28,183 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:24:28,185 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:24:28,186 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:24:28,187 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:24:28,188 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:24:28,190 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:24:28,191 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:24:28,192 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:24:28,195 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:24:28,197 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:24:28,199 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:24:28,208 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:24:28,209 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:24:28,210 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:24:28,214 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:24:28,214 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:24:28,215 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:24:28,216 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:24:28,216 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:24:28,218 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:24:28,218 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:24:28,225 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:24:28,226 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:24:28,228 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:24:28,230 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:24:28,230 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:24:28,231 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:24:28,232 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:24:28,232 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:24:28,233 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:24:28,234 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:24:28,235 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf0a8f3-c78b-4117-b93f-a2ade9e177bf/bin/utaipan-WLngWcDbfI/config/svcomp-Overflow-64bit-Taipan_Default.epf [2021-10-11 02:24:28,279 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:24:28,279 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:24:28,281 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:24:28,281 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:24:28,282 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:24:28,282 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:24:28,282 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:24:28,282 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:24:28,289 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:24:28,289 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:24:28,289 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:24:28,289 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:24:28,290 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:24:28,290 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:24:28,290 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:24:28,291 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:24:28,291 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-11 02:24:28,291 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:24:28,291 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:24:28,292 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:24:28,292 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:24:28,292 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:24:28,292 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-11 02:24:28,292 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:24:28,293 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:24:28,293 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:24:28,293 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:24:28,293 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:24:28,293 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:24:28,294 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:24:28,294 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:24:28,294 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:24:28,294 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:24:28,294 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:24:28,295 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:24:28,295 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:24:28,295 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:24:28,295 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_fcf0a8f3-c78b-4117-b93f-a2ade9e177bf/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf0a8f3-c78b-4117-b93f-a2ade9e177bf/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3212fd9063decb133bdb443685d0895cff5d8c70 [2021-10-11 02:24:28,532 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:24:28,555 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:24:28,558 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:24:28,559 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:24:28,560 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:24:28,561 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf0a8f3-c78b-4117-b93f-a2ade9e177bf/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/termination-crafted/NonTerminationSimple3.c [2021-10-11 02:24:28,656 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf0a8f3-c78b-4117-b93f-a2ade9e177bf/bin/utaipan-WLngWcDbfI/data/c4cd8dd83/5cf5eb1013f943d58b3a042dd7550269/FLAG95c0cff15 [2021-10-11 02:24:29,095 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:24:29,096 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf0a8f3-c78b-4117-b93f-a2ade9e177bf/sv-benchmarks/c/termination-crafted/NonTerminationSimple3.c [2021-10-11 02:24:29,101 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf0a8f3-c78b-4117-b93f-a2ade9e177bf/bin/utaipan-WLngWcDbfI/data/c4cd8dd83/5cf5eb1013f943d58b3a042dd7550269/FLAG95c0cff15 [2021-10-11 02:24:29,505 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf0a8f3-c78b-4117-b93f-a2ade9e177bf/bin/utaipan-WLngWcDbfI/data/c4cd8dd83/5cf5eb1013f943d58b3a042dd7550269 [2021-10-11 02:24:29,507 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:24:29,509 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:24:29,512 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:24:29,513 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:24:29,516 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:24:29,517 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:24:29" (1/1) ... [2021-10-11 02:24:29,525 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17b3b978 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:29, skipping insertion in model container [2021-10-11 02:24:29,525 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:24:29" (1/1) ... [2021-10-11 02:24:29,534 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:24:29,550 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:24:29,684 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:24:29,688 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:24:29,724 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:24:29,734 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:24:29,734 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:29 WrapperNode [2021-10-11 02:24:29,735 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:24:29,736 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:24:29,736 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:24:29,736 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:24:29,745 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:29" (1/1) ... [2021-10-11 02:24:29,750 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:29" (1/1) ... [2021-10-11 02:24:29,780 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:24:29,782 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:24:29,782 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:24:29,782 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:24:29,791 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:29" (1/1) ... [2021-10-11 02:24:29,791 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:29" (1/1) ... [2021-10-11 02:24:29,794 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:29" (1/1) ... [2021-10-11 02:24:29,795 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:29" (1/1) ... [2021-10-11 02:24:29,797 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:29" (1/1) ... [2021-10-11 02:24:29,805 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:29" (1/1) ... [2021-10-11 02:24:29,806 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:29" (1/1) ... [2021-10-11 02:24:29,808 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:24:29,809 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:24:29,810 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:24:29,810 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:24:29,811 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:29" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf0a8f3-c78b-4117-b93f-a2ade9e177bf/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 02:24:29,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:24:29,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:24:30,161 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:24:30,161 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-11 02:24:30,163 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:24:30 BoogieIcfgContainer [2021-10-11 02:24:30,164 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:24:30,165 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:24:30,166 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:24:30,169 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:24:30,170 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:24:29" (1/3) ... [2021-10-11 02:24:30,170 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3279ab05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:24:30, skipping insertion in model container [2021-10-11 02:24:30,170 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:24:29" (2/3) ... [2021-10-11 02:24:30,171 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3279ab05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:24:30, skipping insertion in model container [2021-10-11 02:24:30,171 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:24:30" (3/3) ... [2021-10-11 02:24:30,172 INFO L111 eAbstractionObserver]: Analyzing ICFG NonTerminationSimple3.c [2021-10-11 02:24:30,186 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:24:30,189 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-10-11 02:24:30,198 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-10-11 02:24:30,222 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:24:30,222 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:24:30,222 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:24:30,222 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:24:30,222 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:24:30,223 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:24:30,223 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:24:30,223 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:24:30,236 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2021-10-11 02:24:30,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-11 02:24:30,240 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:24:30,240 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-11 02:24:30,241 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2021-10-11 02:24:30,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:24:30,247 INFO L82 PathProgramCache]: Analyzing trace with hash 31073, now seen corresponding path program 1 times [2021-10-11 02:24:30,258 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:24:30,258 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549095096] [2021-10-11 02:24:30,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:24:30,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:24:30,349 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:24:30,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:24:30,359 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:24:30,375 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-11 02:24:30,376 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 02:24:30,377 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 02:24:30,392 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:24:30 BoogieIcfgContainer [2021-10-11 02:24:30,392 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:24:30,393 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:24:30,393 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:24:30,394 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:24:30,394 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:24:30" (3/4) ... [2021-10-11 02:24:30,397 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-11 02:24:30,431 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fcf0a8f3-c78b-4117-b93f-a2ade9e177bf/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:24:30,431 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:24:30,434 INFO L168 Benchmark]: Toolchain (without parser) took 923.50 ms. Allocated memory was 102.8 MB in the beginning and 134.2 MB in the end (delta: 31.5 MB). Free memory was 75.1 MB in the beginning and 87.4 MB in the end (delta: -12.3 MB). Peak memory consumption was 17.3 MB. Max. memory is 16.1 GB. [2021-10-11 02:24:30,434 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 102.8 MB. Free memory is still 61.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:24:30,435 INFO L168 Benchmark]: CACSL2BoogieTranslator took 222.71 ms. Allocated memory was 102.8 MB in the beginning and 134.2 MB in the end (delta: 31.5 MB). Free memory was 74.9 MB in the beginning and 111.6 MB in the end (delta: -36.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:24:30,436 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.72 ms. Allocated memory is still 134.2 MB. Free memory was 111.6 MB in the beginning and 110.5 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:24:30,437 INFO L168 Benchmark]: Boogie Preprocessor took 26.46 ms. Allocated memory is still 134.2 MB. Free memory was 110.5 MB in the beginning and 109.8 MB in the end (delta: 702.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:24:30,438 INFO L168 Benchmark]: RCFGBuilder took 354.87 ms. Allocated memory is still 134.2 MB. Free memory was 109.4 MB in the beginning and 99.6 MB in the end (delta: 9.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:24:30,438 INFO L168 Benchmark]: TraceAbstraction took 227.07 ms. Allocated memory is still 134.2 MB. Free memory was 99.2 MB in the beginning and 88.7 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:24:30,439 INFO L168 Benchmark]: Witness Printer took 37.99 ms. Allocated memory is still 134.2 MB. Free memory was 88.7 MB in the beginning and 87.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:24:30,443 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 102.8 MB. Free memory is still 61.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 222.71 ms. Allocated memory was 102.8 MB in the beginning and 134.2 MB in the end (delta: 31.5 MB). Free memory was 74.9 MB in the beginning and 111.6 MB in the end (delta: -36.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 44.72 ms. Allocated memory is still 134.2 MB. Free memory was 111.6 MB in the beginning and 110.5 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 26.46 ms. Allocated memory is still 134.2 MB. Free memory was 110.5 MB in the beginning and 109.8 MB in the end (delta: 702.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 354.87 ms. Allocated memory is still 134.2 MB. Free memory was 109.4 MB in the beginning and 99.6 MB in the end (delta: 9.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 227.07 ms. Allocated memory is still 134.2 MB. Free memory was 99.2 MB in the beginning and 88.7 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Witness Printer took 37.99 ms. Allocated memory is still 134.2 MB. Free memory was 88.7 MB in the beginning and 87.4 MB in the end (delta: 1.4 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: 18]: integer overflow possible integer overflow possible We found a FailurePath: [L14] int c, x; [L15] c = __VERIFIER_nondet_int() [L16] x = __VERIFIER_nondet_int() [L17] COND TRUE x >= 0 [L18] x + c - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.1s, 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=7occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 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...