./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-aaron4.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_34042407-0cc9-4a99-9001-f2c1c50a8ec5/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_34042407-0cc9-4a99-9001-f2c1c50a8ec5/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_34042407-0cc9-4a99-9001-f2c1c50a8ec5/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_34042407-0cc9-4a99-9001-f2c1c50a8ec5/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-aaron4.c -s /tmp/vcloud-vcloud-master/worker/run_dir_34042407-0cc9-4a99-9001-f2c1c50a8ec5/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_34042407-0cc9-4a99-9001-f2c1c50a8ec5/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 4d735b86941b4b144f047f65c32e604089b6d2a0 .................................................................................................................................................................................................................................... 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 03:21:37,537 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:21:37,549 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:21:37,639 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:21:37,639 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:21:37,645 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:21:37,648 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:21:37,650 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:21:37,652 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:21:37,654 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:21:37,655 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:21:37,656 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:21:37,657 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:21:37,658 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:21:37,660 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:21:37,661 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:21:37,663 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:21:37,664 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:21:37,666 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:21:37,669 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:21:37,671 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:21:37,673 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:21:37,674 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:21:37,675 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:21:37,679 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:21:37,680 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:21:37,680 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:21:37,681 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:21:37,682 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:21:37,683 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:21:37,684 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:21:37,685 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:21:37,686 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:21:37,687 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:21:37,688 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:21:37,689 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:21:37,690 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:21:37,690 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:21:37,691 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:21:37,692 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:21:37,693 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:21:37,694 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_34042407-0cc9-4a99-9001-f2c1c50a8ec5/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2020-11-28 03:21:37,726 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:21:37,728 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:21:37,729 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:21:37,730 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:21:37,730 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:21:37,730 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:21:37,730 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 03:21:37,731 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:21:37,731 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:21:37,731 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:21:37,732 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:21:37,732 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:21:37,733 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-28 03:21:37,733 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:21:37,733 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:21:37,733 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:21:37,733 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:21:37,734 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:21:37,734 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:21:37,734 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:21:37,734 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:21:37,735 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:21:37,735 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:21:37,735 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:21:37,735 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:21:37,736 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:21:37,736 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:21:37,736 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:21:37,736 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_34042407-0cc9-4a99-9001-f2c1c50a8ec5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_34042407-0cc9-4a99-9001-f2c1c50a8ec5/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4d735b86941b4b144f047f65c32e604089b6d2a0 [2020-11-28 03:21:37,999 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:21:38,045 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:21:38,047 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:21:38,049 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:21:38,050 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:21:38,051 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_34042407-0cc9-4a99-9001-f2c1c50a8ec5/bin/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-aaron4.c [2020-11-28 03:21:38,128 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_34042407-0cc9-4a99-9001-f2c1c50a8ec5/bin/uautomizer/data/a68316a1b/1e91066f97f94b439a23ad7511f0333b/FLAG4ef961c84 [2020-11-28 03:21:38,654 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:21:38,656 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_34042407-0cc9-4a99-9001-f2c1c50a8ec5/sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-aaron4.c [2020-11-28 03:21:38,669 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_34042407-0cc9-4a99-9001-f2c1c50a8ec5/bin/uautomizer/data/a68316a1b/1e91066f97f94b439a23ad7511f0333b/FLAG4ef961c84 [2020-11-28 03:21:39,003 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_34042407-0cc9-4a99-9001-f2c1c50a8ec5/bin/uautomizer/data/a68316a1b/1e91066f97f94b439a23ad7511f0333b [2020-11-28 03:21:39,006 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:21:39,007 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:21:39,009 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:21:39,009 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:21:39,013 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:21:39,014 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:21:39" (1/1) ... [2020-11-28 03:21:39,016 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b1c1476 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:39, skipping insertion in model container [2020-11-28 03:21:39,016 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:21:39" (1/1) ... [2020-11-28 03:21:39,024 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:21:39,038 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:21:39,194 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:21:39,204 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:21:39,244 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:21:39,257 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:21:39,257 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:39 WrapperNode [2020-11-28 03:21:39,258 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:21:39,259 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:21:39,259 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:21:39,259 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:21:39,268 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:39" (1/1) ... [2020-11-28 03:21:39,273 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:39" (1/1) ... [2020-11-28 03:21:39,294 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:21:39,296 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:21:39,296 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:21:39,296 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:21:39,306 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:39" (1/1) ... [2020-11-28 03:21:39,306 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:39" (1/1) ... [2020-11-28 03:21:39,308 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:39" (1/1) ... [2020-11-28 03:21:39,308 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:39" (1/1) ... [2020-11-28 03:21:39,311 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:39" (1/1) ... [2020-11-28 03:21:39,316 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:39" (1/1) ... [2020-11-28 03:21:39,317 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:39" (1/1) ... [2020-11-28 03:21:39,319 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:21:39,320 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:21:39,320 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:21:39,320 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:21:39,328 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:39" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_34042407-0cc9-4a99-9001-f2c1c50a8ec5/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 03:21:39,431 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:21:39,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:21:39,760 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:21:39,760 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-28 03:21:39,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:21:39 BoogieIcfgContainer [2020-11-28 03:21:39,762 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:21:39,764 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:21:39,764 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:21:39,768 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:21:39,769 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:21:39" (1/3) ... [2020-11-28 03:21:39,770 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34efe166 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:21:39, skipping insertion in model container [2020-11-28 03:21:39,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:21:39" (2/3) ... [2020-11-28 03:21:39,770 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34efe166 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:21:39, skipping insertion in model container [2020-11-28 03:21:39,771 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:21:39" (3/3) ... [2020-11-28 03:21:39,772 INFO L111 eAbstractionObserver]: Analyzing ICFG ChawdharyCookGulwaniSagivYang-ESOP2008-aaron4.c [2020-11-28 03:21:39,783 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:21:39,806 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 10 error locations. [2020-11-28 03:21:39,820 INFO L253 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2020-11-28 03:21:39,861 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:21:39,862 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:21:39,862 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:21:39,862 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:21:39,862 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:21:39,862 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:21:39,863 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:21:39,863 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:21:39,879 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2020-11-28 03:21:39,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-28 03:21:39,884 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:21:39,885 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-28 03:21:39,886 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.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-28 03:21:39,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:21:39,919 INFO L82 PathProgramCache]: Analyzing trace with hash 959367, now seen corresponding path program 1 times [2020-11-28 03:21:39,929 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:21:39,947 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151011096] [2020-11-28 03:21:39,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:21:40,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:21:40,048 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:21:40,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:21:40,068 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:21:40,085 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:21:40,086 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 03:21:40,087 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:21:40,105 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:21:40 BoogieIcfgContainer [2020-11-28 03:21:40,106 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:21:40,107 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:21:40,107 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:21:40,107 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:21:40,108 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:21:39" (3/4) ... [2020-11-28 03:21:40,110 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 03:21:40,146 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_34042407-0cc9-4a99-9001-f2c1c50a8ec5/bin/uautomizer/witness.graphml [2020-11-28 03:21:40,146 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:21:40,149 INFO L168 Benchmark]: Toolchain (without parser) took 1139.93 ms. Allocated memory was 90.2 MB in the beginning and 113.2 MB in the end (delta: 23.1 MB). Free memory was 55.1 MB in the beginning and 84.4 MB in the end (delta: -29.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:21:40,150 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 90.2 MB. Free memory was 71.2 MB in the beginning and 71.2 MB in the end (delta: 69.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:21:40,151 INFO L168 Benchmark]: CACSL2BoogieTranslator took 249.09 ms. Allocated memory is still 90.2 MB. Free memory was 54.9 MB in the beginning and 68.3 MB in the end (delta: -13.4 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. [2020-11-28 03:21:40,151 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.85 ms. Allocated memory is still 90.2 MB. Free memory was 68.3 MB in the beginning and 66.9 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:21:40,152 INFO L168 Benchmark]: Boogie Preprocessor took 23.44 ms. Allocated memory is still 90.2 MB. Free memory was 66.9 MB in the beginning and 65.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:21:40,153 INFO L168 Benchmark]: RCFGBuilder took 442.67 ms. Allocated memory is still 90.2 MB. Free memory was 65.8 MB in the beginning and 53.0 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 03:21:40,154 INFO L168 Benchmark]: TraceAbstraction took 341.69 ms. Allocated memory was 90.2 MB in the beginning and 113.2 MB in the end (delta: 23.1 MB). Free memory was 52.4 MB in the beginning and 86.1 MB in the end (delta: -33.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:21:40,155 INFO L168 Benchmark]: Witness Printer took 39.54 ms. Allocated memory is still 113.2 MB. Free memory was 86.1 MB in the beginning and 84.4 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:21:40,160 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 90.2 MB. Free memory was 71.2 MB in the beginning and 71.2 MB in the end (delta: 69.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 249.09 ms. Allocated memory is still 90.2 MB. Free memory was 54.9 MB in the beginning and 68.3 MB in the end (delta: -13.4 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 35.85 ms. Allocated memory is still 90.2 MB. Free memory was 68.3 MB in the beginning and 66.9 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 23.44 ms. Allocated memory is still 90.2 MB. Free memory was 66.9 MB in the beginning and 65.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 442.67 ms. Allocated memory is still 90.2 MB. Free memory was 65.8 MB in the beginning and 53.0 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 341.69 ms. Allocated memory was 90.2 MB in the beginning and 113.2 MB in the end (delta: 23.1 MB). Free memory was 52.4 MB in the beginning and 86.1 MB in the end (delta: -33.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 39.54 ms. Allocated memory is still 113.2 MB. Free memory was 86.1 MB in the beginning and 84.4 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 21]: integer overflow possible integer overflow possible We found a FailurePath: [L14] int i, j, k, an, bn, tk; [L15] i = __VERIFIER_nondet_int() [L16] j = __VERIFIER_nondet_int() [L17] k = __VERIFIER_nondet_int() [L18] an = __VERIFIER_nondet_int() [L19] bn = __VERIFIER_nondet_int() [L20] tk = __VERIFIER_nondet_int() [L21] ((an >= i && bn >= j) || (an >= i && bn <= j) || (an <= i && bn >= j)) && k >= tk + 1 [L21] tk + 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 32 locations, 10 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred 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...