./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/signedintegeroverflow-regression/NoConversion.i --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_8ceb2597-142d-4dda-ab61-07fdd0e970fd/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_8ceb2597-142d-4dda-ab61-07fdd0e970fd/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8ceb2597-142d-4dda-ab61-07fdd0e970fd/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8ceb2597-142d-4dda-ab61-07fdd0e970fd/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/signedintegeroverflow-regression/NoConversion.i -s /tmp/vcloud-vcloud-master/worker/run_dir_8ceb2597-142d-4dda-ab61-07fdd0e970fd/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8ceb2597-142d-4dda-ab61-07fdd0e970fd/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 a51de0cc692889b99da17b0d1ffe250fa4a5bddd .............................................................................................................................................................................................................................. 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 [2020-11-30 01:26:55,577 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:26:55,586 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:26:55,651 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:26:55,668 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:26:55,670 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:26:55,684 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:26:55,687 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:26:55,690 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:26:55,692 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:26:55,694 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:26:55,695 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:26:55,696 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:26:55,698 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:26:55,699 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:26:55,701 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:26:55,703 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:26:55,704 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:26:55,707 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:26:55,710 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:26:55,713 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:26:55,715 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:26:55,717 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:26:55,718 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:26:55,722 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:26:55,723 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:26:55,724 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:26:55,725 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:26:55,726 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:26:55,727 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:26:55,728 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:26:55,729 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:26:55,730 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:26:55,732 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:26:55,733 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:26:55,734 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:26:55,735 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:26:55,735 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:26:55,736 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:26:55,737 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:26:55,738 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:26:55,740 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8ceb2597-142d-4dda-ab61-07fdd0e970fd/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2020-11-30 01:26:55,771 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:26:55,772 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:26:55,773 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 01:26:55,774 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 01:26:55,774 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 01:26:55,775 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:26:55,775 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 01:26:55,776 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 01:26:55,776 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:26:55,777 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 01:26:55,777 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 01:26:55,778 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 01:26:55,778 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-30 01:26:55,779 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:26:55,779 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:26:55,780 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 01:26:55,780 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:26:55,781 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 01:26:55,781 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 01:26:55,782 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 01:26:55,782 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:26:55,782 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:26:55,783 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 01:26:55,783 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 01:26:55,783 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 01:26:55,784 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 01:26:55,784 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 01:26:55,784 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:26:55,784 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_8ceb2597-142d-4dda-ab61-07fdd0e970fd/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_8ceb2597-142d-4dda-ab61-07fdd0e970fd/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a51de0cc692889b99da17b0d1ffe250fa4a5bddd [2020-11-30 01:26:56,050 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:26:56,112 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:26:56,116 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:26:56,117 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:26:56,119 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:26:56,120 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8ceb2597-142d-4dda-ab61-07fdd0e970fd/bin/uautomizer/../../sv-benchmarks/c/signedintegeroverflow-regression/NoConversion.i [2020-11-30 01:26:56,224 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8ceb2597-142d-4dda-ab61-07fdd0e970fd/bin/uautomizer/data/9d260a518/dc3e87aa593242e29d7cad0b259b3f1a/FLAG40eda35de [2020-11-30 01:26:56,893 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:26:56,897 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8ceb2597-142d-4dda-ab61-07fdd0e970fd/sv-benchmarks/c/signedintegeroverflow-regression/NoConversion.i [2020-11-30 01:26:56,917 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8ceb2597-142d-4dda-ab61-07fdd0e970fd/bin/uautomizer/data/9d260a518/dc3e87aa593242e29d7cad0b259b3f1a/FLAG40eda35de [2020-11-30 01:26:57,127 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8ceb2597-142d-4dda-ab61-07fdd0e970fd/bin/uautomizer/data/9d260a518/dc3e87aa593242e29d7cad0b259b3f1a [2020-11-30 01:26:57,130 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:26:57,132 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:26:57,133 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:26:57,134 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:26:57,138 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:26:57,139 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:26:57" (1/1) ... [2020-11-30 01:26:57,141 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a817067 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:26:57, skipping insertion in model container [2020-11-30 01:26:57,142 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:26:57" (1/1) ... [2020-11-30 01:26:57,151 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:26:57,188 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:26:57,482 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:26:57,493 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:26:57,537 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:26:57,592 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:26:57,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:26:57 WrapperNode [2020-11-30 01:26:57,593 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:26:57,595 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:26:57,595 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:26:57,595 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:26:57,605 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:26:57" (1/1) ... [2020-11-30 01:26:57,619 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:26:57" (1/1) ... [2020-11-30 01:26:57,638 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:26:57,639 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:26:57,639 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:26:57,640 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:26:57,649 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:26:57" (1/1) ... [2020-11-30 01:26:57,650 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:26:57" (1/1) ... [2020-11-30 01:26:57,653 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:26:57" (1/1) ... [2020-11-30 01:26:57,653 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:26:57" (1/1) ... [2020-11-30 01:26:57,657 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:26:57" (1/1) ... [2020-11-30 01:26:57,658 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:26:57" (1/1) ... [2020-11-30 01:26:57,660 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:26:57" (1/1) ... [2020-11-30 01:26:57,662 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:26:57,663 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:26:57,663 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:26:57,663 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:26:57,665 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:26:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8ceb2597-142d-4dda-ab61-07fdd0e970fd/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 [2020-11-30 01:26:57,754 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 01:26:57,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 01:26:57,754 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:26:57,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:26:58,003 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:26:58,004 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-11-30 01:26:58,005 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:26:58 BoogieIcfgContainer [2020-11-30 01:26:58,005 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:26:58,007 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 01:26:58,008 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 01:26:58,012 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 01:26:58,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 01:26:57" (1/3) ... [2020-11-30 01:26:58,013 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a288e21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:26:58, skipping insertion in model container [2020-11-30 01:26:58,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:26:57" (2/3) ... [2020-11-30 01:26:58,014 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a288e21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:26:58, skipping insertion in model container [2020-11-30 01:26:58,014 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:26:58" (3/3) ... [2020-11-30 01:26:58,016 INFO L111 eAbstractionObserver]: Analyzing ICFG NoConversion.i [2020-11-30 01:26:58,029 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 01:26:58,033 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 01:26:58,048 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 01:26:58,081 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 01:26:58,081 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 01:26:58,081 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 01:26:58,081 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 01:26:58,081 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 01:26:58,082 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 01:26:58,082 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 01:26:58,082 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 01:26:58,097 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2020-11-30 01:26:58,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-30 01:26:58,102 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:26:58,103 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-11-30 01:26:58,103 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 01:26:58,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:26:58,110 INFO L82 PathProgramCache]: Analyzing trace with hash 29856, now seen corresponding path program 1 times [2020-11-30 01:26:58,121 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:26:58,122 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25931321] [2020-11-30 01:26:58,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:26:58,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:26:58,258 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:26:58,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:26:58,288 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:26:58,316 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:26:58,317 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-30 01:26:58,318 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 01:26:58,342 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 01:26:58 BoogieIcfgContainer [2020-11-30 01:26:58,342 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 01:26:58,345 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:26:58,345 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:26:58,345 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:26:58,346 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:26:58" (3/4) ... [2020-11-30 01:26:58,349 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-30 01:26:58,401 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_8ceb2597-142d-4dda-ab61-07fdd0e970fd/bin/uautomizer/witness.graphml [2020-11-30 01:26:58,411 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:26:58,415 INFO L168 Benchmark]: Toolchain (without parser) took 1280.34 ms. Allocated memory is still 96.5 MB. Free memory was 73.6 MB in the beginning and 71.3 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.2 MB. Max. memory is 16.1 GB. [2020-11-30 01:26:58,417 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 79.7 MB. Free memory is still 44.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:26:58,418 INFO L168 Benchmark]: CACSL2BoogieTranslator took 460.49 ms. Allocated memory is still 96.5 MB. Free memory was 73.4 MB in the beginning and 65.2 MB in the end (delta: 8.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 01:26:58,420 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.34 ms. Allocated memory is still 96.5 MB. Free memory was 65.2 MB in the beginning and 63.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:26:58,421 INFO L168 Benchmark]: Boogie Preprocessor took 23.00 ms. Allocated memory is still 96.5 MB. Free memory was 63.7 MB in the beginning and 62.7 MB in the end (delta: 989.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:26:58,422 INFO L168 Benchmark]: RCFGBuilder took 342.43 ms. Allocated memory is still 96.5 MB. Free memory was 62.7 MB in the beginning and 52.3 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 01:26:58,424 INFO L168 Benchmark]: TraceAbstraction took 334.66 ms. Allocated memory is still 96.5 MB. Free memory was 52.0 MB in the beginning and 72.7 MB in the end (delta: -20.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:26:58,429 INFO L168 Benchmark]: Witness Printer took 66.17 ms. Allocated memory is still 96.5 MB. Free memory was 72.7 MB in the beginning and 71.3 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:26:58,434 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 79.7 MB. Free memory is still 44.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 460.49 ms. Allocated memory is still 96.5 MB. Free memory was 73.4 MB in the beginning and 65.2 MB in the end (delta: 8.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 43.34 ms. Allocated memory is still 96.5 MB. Free memory was 65.2 MB in the beginning and 63.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 23.00 ms. Allocated memory is still 96.5 MB. Free memory was 63.7 MB in the beginning and 62.7 MB in the end (delta: 989.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 342.43 ms. Allocated memory is still 96.5 MB. Free memory was 62.7 MB in the beginning and 52.3 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 334.66 ms. Allocated memory is still 96.5 MB. Free memory was 52.0 MB in the beginning and 72.7 MB in the end (delta: -20.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 66.17 ms. Allocated memory is still 96.5 MB. Free memory was 72.7 MB in the beginning and 71.3 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 332]: integer overflow possible integer overflow possible We found a FailurePath: [L332] 2147483647 + 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 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=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...