./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/NonTerminationSimple8.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_03d99a3b-c3ff-4a99-874d-4fb7700e39c3/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_03d99a3b-c3ff-4a99-874d-4fb7700e39c3/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_03d99a3b-c3ff-4a99-874d-4fb7700e39c3/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_03d99a3b-c3ff-4a99-874d-4fb7700e39c3/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted/NonTerminationSimple8.c -s /tmp/vcloud-vcloud-master/worker/run_dir_03d99a3b-c3ff-4a99-874d-4fb7700e39c3/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_03d99a3b-c3ff-4a99-874d-4fb7700e39c3/bin/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 98956879f9028475e0108c7d8cfc7c076bc218ac ................................................................................................................................................................................................................................ 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-a4ecdab [2020-11-28 02:57:35,277 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 02:57:35,279 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 02:57:35,343 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 02:57:35,343 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 02:57:35,345 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 02:57:35,347 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 02:57:35,373 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 02:57:35,375 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 02:57:35,376 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 02:57:35,377 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 02:57:35,379 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 02:57:35,379 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 02:57:35,382 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 02:57:35,383 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 02:57:35,387 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 02:57:35,389 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 02:57:35,397 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 02:57:35,404 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 02:57:35,410 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 02:57:35,415 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 02:57:35,418 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 02:57:35,421 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 02:57:35,422 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 02:57:35,429 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 02:57:35,431 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 02:57:35,432 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 02:57:35,434 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 02:57:35,435 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 02:57:35,438 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 02:57:35,439 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 02:57:35,441 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 02:57:35,443 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 02:57:35,444 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 02:57:35,446 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 02:57:35,446 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 02:57:35,447 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 02:57:35,447 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 02:57:35,448 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 02:57:35,449 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 02:57:35,449 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 02:57:35,452 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_03d99a3b-c3ff-4a99-874d-4fb7700e39c3/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2020-11-28 02:57:35,501 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 02:57:35,501 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 02:57:35,504 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 02:57:35,504 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 02:57:35,504 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 02:57:35,505 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 02:57:35,505 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 02:57:35,505 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 02:57:35,506 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 02:57:35,506 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 02:57:35,507 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 02:57:35,507 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 02:57:35,508 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-28 02:57:35,508 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 02:57:35,508 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 02:57:35,508 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 02:57:35,509 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 02:57:35,509 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 02:57:35,509 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 02:57:35,509 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 02:57:35,509 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 02:57:35,510 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 02:57:35,510 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 02:57:35,510 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 02:57:35,510 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 02:57:35,511 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 02:57:35,511 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 02:57:35,511 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 02:57:35,511 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_03d99a3b-c3ff-4a99-874d-4fb7700e39c3/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_03d99a3b-c3ff-4a99-874d-4fb7700e39c3/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 98956879f9028475e0108c7d8cfc7c076bc218ac [2020-11-28 02:57:35,818 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 02:57:35,854 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 02:57:35,857 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 02:57:35,860 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 02:57:35,860 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 02:57:35,861 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_03d99a3b-c3ff-4a99-874d-4fb7700e39c3/bin/uautomizer/../../sv-benchmarks/c/termination-crafted/NonTerminationSimple8.c [2020-11-28 02:57:35,942 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_03d99a3b-c3ff-4a99-874d-4fb7700e39c3/bin/uautomizer/data/6ce727ad1/11f5aefe2b764d5191356bde7af266c5/FLAG6e3b1b0b8 [2020-11-28 02:57:36,339 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 02:57:36,339 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_03d99a3b-c3ff-4a99-874d-4fb7700e39c3/sv-benchmarks/c/termination-crafted/NonTerminationSimple8.c [2020-11-28 02:57:36,345 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_03d99a3b-c3ff-4a99-874d-4fb7700e39c3/bin/uautomizer/data/6ce727ad1/11f5aefe2b764d5191356bde7af266c5/FLAG6e3b1b0b8 [2020-11-28 02:57:36,758 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_03d99a3b-c3ff-4a99-874d-4fb7700e39c3/bin/uautomizer/data/6ce727ad1/11f5aefe2b764d5191356bde7af266c5 [2020-11-28 02:57:36,760 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 02:57:36,762 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 02:57:36,763 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 02:57:36,764 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 02:57:36,768 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 02:57:36,769 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:57:36" (1/1) ... [2020-11-28 02:57:36,776 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d5febbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:36, skipping insertion in model container [2020-11-28 02:57:36,776 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:57:36" (1/1) ... [2020-11-28 02:57:36,784 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 02:57:36,800 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 02:57:36,916 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 02:57:36,923 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 02:57:36,949 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 02:57:36,966 INFO L208 MainTranslator]: Completed translation [2020-11-28 02:57:36,967 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:36 WrapperNode [2020-11-28 02:57:36,967 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 02:57:36,968 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 02:57:36,969 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 02:57:36,969 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 02:57:36,985 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:36" (1/1) ... [2020-11-28 02:57:36,989 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:36" (1/1) ... [2020-11-28 02:57:37,006 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 02:57:37,007 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 02:57:37,007 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 02:57:37,007 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 02:57:37,014 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:36" (1/1) ... [2020-11-28 02:57:37,014 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:36" (1/1) ... [2020-11-28 02:57:37,015 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:36" (1/1) ... [2020-11-28 02:57:37,015 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:36" (1/1) ... [2020-11-28 02:57:37,017 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:36" (1/1) ... [2020-11-28 02:57:37,021 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:36" (1/1) ... [2020-11-28 02:57:37,022 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:36" (1/1) ... [2020-11-28 02:57:37,023 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 02:57:37,024 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 02:57:37,025 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 02:57:37,025 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 02:57:37,026 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:36" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_03d99a3b-c3ff-4a99-874d-4fb7700e39c3/bin/uautomizer/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 [2020-11-28 02:57:37,092 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 02:57:37,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 02:57:37,296 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 02:57:37,297 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-28 02:57:37,298 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:57:37 BoogieIcfgContainer [2020-11-28 02:57:37,298 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 02:57:37,300 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 02:57:37,300 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 02:57:37,304 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 02:57:37,304 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:57:36" (1/3) ... [2020-11-28 02:57:37,305 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@632df775 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:57:37, skipping insertion in model container [2020-11-28 02:57:37,305 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:36" (2/3) ... [2020-11-28 02:57:37,305 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@632df775 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:57:37, skipping insertion in model container [2020-11-28 02:57:37,306 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:57:37" (3/3) ... [2020-11-28 02:57:37,307 INFO L111 eAbstractionObserver]: Analyzing ICFG NonTerminationSimple8.c [2020-11-28 02:57:37,317 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 02:57:37,321 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2020-11-28 02:57:37,332 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2020-11-28 02:57:37,356 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 02:57:37,356 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 02:57:37,357 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 02:57:37,357 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 02:57:37,357 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 02:57:37,357 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 02:57:37,357 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 02:57:37,358 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 02:57:37,372 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2020-11-28 02:57:37,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-28 02:57:37,377 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:57:37,378 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-28 02:57:37,379 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-28 02:57:37,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:37,384 INFO L82 PathProgramCache]: Analyzing trace with hash 963339, now seen corresponding path program 1 times [2020-11-28 02:57:37,394 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:37,394 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514163371] [2020-11-28 02:57:37,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:37,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:37,485 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:37,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:37,517 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:37,537 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:57:37,539 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 02:57:37,540 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 02:57:37,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:57:37 BoogieIcfgContainer [2020-11-28 02:57:37,562 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 02:57:37,571 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 02:57:37,571 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 02:57:37,572 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 02:57:37,572 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:57:37" (3/4) ... [2020-11-28 02:57:37,575 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 02:57:37,635 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_03d99a3b-c3ff-4a99-874d-4fb7700e39c3/bin/uautomizer/witness.graphml [2020-11-28 02:57:37,644 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 02:57:37,647 INFO L168 Benchmark]: Toolchain (without parser) took 884.35 ms. Allocated memory is still 94.4 MB. Free memory was 64.1 MB in the beginning and 48.5 MB in the end (delta: 15.6 MB). Peak memory consumption was 14.1 MB. Max. memory is 16.1 GB. [2020-11-28 02:57:37,650 INFO L168 Benchmark]: CDTParser took 0.76 ms. Allocated memory is still 77.6 MB. Free memory was 49.3 MB in the beginning and 49.3 MB in the end (delta: 28.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 02:57:37,653 INFO L168 Benchmark]: CACSL2BoogieTranslator took 204.27 ms. Allocated memory is still 94.4 MB. Free memory was 63.7 MB in the beginning and 73.6 MB in the end (delta: -10.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 02:57:37,654 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.98 ms. Allocated memory is still 94.4 MB. Free memory was 73.6 MB in the beginning and 72.5 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 02:57:37,656 INFO L168 Benchmark]: Boogie Preprocessor took 16.62 ms. Allocated memory is still 94.4 MB. Free memory was 72.5 MB in the beginning and 71.6 MB in the end (delta: 913.5 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 02:57:37,659 INFO L168 Benchmark]: RCFGBuilder took 274.07 ms. Allocated memory is still 94.4 MB. Free memory was 71.6 MB in the beginning and 60.7 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 02:57:37,660 INFO L168 Benchmark]: TraceAbstraction took 262.38 ms. Allocated memory is still 94.4 MB. Free memory was 60.3 MB in the beginning and 49.8 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 02:57:37,662 INFO L168 Benchmark]: Witness Printer took 74.16 ms. Allocated memory is still 94.4 MB. Free memory was 49.8 MB in the beginning and 48.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 02:57:37,666 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.76 ms. Allocated memory is still 77.6 MB. Free memory was 49.3 MB in the beginning and 49.3 MB in the end (delta: 28.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 204.27 ms. Allocated memory is still 94.4 MB. Free memory was 63.7 MB in the beginning and 73.6 MB in the end (delta: -10.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 37.98 ms. Allocated memory is still 94.4 MB. Free memory was 73.6 MB in the beginning and 72.5 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 16.62 ms. Allocated memory is still 94.4 MB. Free memory was 72.5 MB in the beginning and 71.6 MB in the end (delta: 913.5 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 274.07 ms. Allocated memory is still 94.4 MB. Free memory was 71.6 MB in the beginning and 60.7 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 262.38 ms. Allocated memory is still 94.4 MB. Free memory was 60.3 MB in the beginning and 49.8 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Witness Printer took 74.16 ms. Allocated memory is still 94.4 MB. Free memory was 49.8 MB in the beginning and 48.5 MB in the end (delta: 1.3 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: 16]: integer overflow possible integer overflow possible We found a FailurePath: [L12] int x; [L13] x = __VERIFIER_nondet_int() [L14] COND TRUE x >= 0 [L15] COND TRUE __VERIFIER_nondet_int() != 0 [L16] x + 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 26 locations, 8 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=26occurred 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, 4 NumberOfCodeBlocks, 4 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...