./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_da845bc9-6785-4fa8-8bc5-c19f382544f0/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_da845bc9-6785-4fa8-8bc5-c19f382544f0/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_da845bc9-6785-4fa8-8bc5-c19f382544f0/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_da845bc9-6785-4fa8-8bc5-c19f382544f0/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/signedintegeroverflow-regression/NoConversion.i -s /tmp/vcloud-vcloud-master/worker/run_dir_da845bc9-6785-4fa8-8bc5-c19f382544f0/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_da845bc9-6785-4fa8-8bc5-c19f382544f0/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 [2020-11-28 02:59:31,564 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 02:59:31,567 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 02:59:31,611 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 02:59:31,612 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 02:59:31,614 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 02:59:31,616 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 02:59:31,619 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 02:59:31,637 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 02:59:31,638 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 02:59:31,640 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 02:59:31,642 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 02:59:31,642 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 02:59:31,644 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 02:59:31,646 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 02:59:31,647 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 02:59:31,649 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 02:59:31,650 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 02:59:31,653 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 02:59:31,656 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 02:59:31,658 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 02:59:31,660 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 02:59:31,662 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 02:59:31,663 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 02:59:31,681 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 02:59:31,682 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 02:59:31,682 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 02:59:31,684 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 02:59:31,684 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 02:59:31,686 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 02:59:31,686 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 02:59:31,688 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 02:59:31,689 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 02:59:31,690 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 02:59:31,691 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 02:59:31,692 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 02:59:31,693 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 02:59:31,693 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 02:59:31,693 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 02:59:31,694 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 02:59:31,695 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 02:59:31,697 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_da845bc9-6785-4fa8-8bc5-c19f382544f0/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2020-11-28 02:59:31,720 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 02:59:31,721 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 02:59:31,722 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 02:59:31,723 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 02:59:31,723 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 02:59:31,723 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 02:59:31,724 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 02:59:31,724 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 02:59:31,724 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 02:59:31,725 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 02:59:31,725 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 02:59:31,725 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 02:59:31,726 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-28 02:59:31,726 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 02:59:31,726 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 02:59:31,727 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 02:59:31,727 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 02:59:31,727 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 02:59:31,727 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 02:59:31,728 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 02:59:31,728 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 02:59:31,728 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 02:59:31,729 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 02:59:31,729 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 02:59:31,729 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 02:59:31,730 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 02:59:31,730 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 02:59:31,730 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 02:59:31,731 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_da845bc9-6785-4fa8-8bc5-c19f382544f0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_da845bc9-6785-4fa8-8bc5-c19f382544f0/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a51de0cc692889b99da17b0d1ffe250fa4a5bddd [2020-11-28 02:59:32,003 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 02:59:32,026 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 02:59:32,029 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 02:59:32,030 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 02:59:32,037 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 02:59:32,039 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_da845bc9-6785-4fa8-8bc5-c19f382544f0/bin/uautomizer/../../sv-benchmarks/c/signedintegeroverflow-regression/NoConversion.i [2020-11-28 02:59:32,134 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_da845bc9-6785-4fa8-8bc5-c19f382544f0/bin/uautomizer/data/7d6f80b23/5ae51cdd86dc4bcfafc7b7755fb71113/FLAG0b799e6c5 [2020-11-28 02:59:32,684 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 02:59:32,684 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_da845bc9-6785-4fa8-8bc5-c19f382544f0/sv-benchmarks/c/signedintegeroverflow-regression/NoConversion.i [2020-11-28 02:59:32,702 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_da845bc9-6785-4fa8-8bc5-c19f382544f0/bin/uautomizer/data/7d6f80b23/5ae51cdd86dc4bcfafc7b7755fb71113/FLAG0b799e6c5 [2020-11-28 02:59:32,975 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_da845bc9-6785-4fa8-8bc5-c19f382544f0/bin/uautomizer/data/7d6f80b23/5ae51cdd86dc4bcfafc7b7755fb71113 [2020-11-28 02:59:32,978 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 02:59:32,982 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 02:59:32,984 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 02:59:32,984 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 02:59:32,987 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 02:59:32,988 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:59:32" (1/1) ... [2020-11-28 02:59:32,994 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d627472 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:32, skipping insertion in model container [2020-11-28 02:59:32,995 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:59:32" (1/1) ... [2020-11-28 02:59:33,002 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 02:59:33,043 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 02:59:33,368 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 02:59:33,385 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 02:59:33,446 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 02:59:33,510 INFO L208 MainTranslator]: Completed translation [2020-11-28 02:59:33,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:33 WrapperNode [2020-11-28 02:59:33,511 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 02:59:33,513 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 02:59:33,514 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 02:59:33,514 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 02:59:33,522 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:33" (1/1) ... [2020-11-28 02:59:33,545 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:33" (1/1) ... [2020-11-28 02:59:33,571 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 02:59:33,572 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 02:59:33,572 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 02:59:33,572 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 02:59:33,578 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:33" (1/1) ... [2020-11-28 02:59:33,578 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:33" (1/1) ... [2020-11-28 02:59:33,580 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:33" (1/1) ... [2020-11-28 02:59:33,580 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:33" (1/1) ... [2020-11-28 02:59:33,584 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:33" (1/1) ... [2020-11-28 02:59:33,585 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:33" (1/1) ... [2020-11-28 02:59:33,586 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:33" (1/1) ... [2020-11-28 02:59:33,587 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 02:59:33,588 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 02:59:33,588 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 02:59:33,589 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 02:59:33,590 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_da845bc9-6785-4fa8-8bc5-c19f382544f0/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 02:59:33,649 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 02:59:33,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 02:59:33,650 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 02:59:33,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 02:59:33,819 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 02:59:33,819 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-11-28 02:59:33,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:59:33 BoogieIcfgContainer [2020-11-28 02:59:33,821 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 02:59:33,823 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 02:59:33,824 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 02:59:33,827 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 02:59:33,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:59:32" (1/3) ... [2020-11-28 02:59:33,829 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1024222a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:59:33, skipping insertion in model container [2020-11-28 02:59:33,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:59:33" (2/3) ... [2020-11-28 02:59:33,829 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1024222a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:59:33, skipping insertion in model container [2020-11-28 02:59:33,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:59:33" (3/3) ... [2020-11-28 02:59:33,831 INFO L111 eAbstractionObserver]: Analyzing ICFG NoConversion.i [2020-11-28 02:59:33,843 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 02:59:33,847 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 02:59:33,859 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-28 02:59:33,885 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 02:59:33,885 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 02:59:33,885 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 02:59:33,886 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 02:59:33,886 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 02:59:33,886 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 02:59:33,886 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 02:59:33,886 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 02:59:33,899 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2020-11-28 02:59:33,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-28 02:59:33,906 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:59:33,907 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-11-28 02:59:33,907 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-28 02:59:33,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:59:33,914 INFO L82 PathProgramCache]: Analyzing trace with hash 29856, now seen corresponding path program 1 times [2020-11-28 02:59:33,929 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:59:33,930 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186627980] [2020-11-28 02:59:33,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:59:34,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:59:34,058 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:59:34,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:59:34,095 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:59:34,117 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:59:34,118 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 02:59:34,118 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 02:59:34,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:59:34 BoogieIcfgContainer [2020-11-28 02:59:34,139 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 02:59:34,142 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 02:59:34,142 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 02:59:34,142 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 02:59:34,143 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:59:33" (3/4) ... [2020-11-28 02:59:34,145 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 02:59:34,193 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_da845bc9-6785-4fa8-8bc5-c19f382544f0/bin/uautomizer/witness.graphml [2020-11-28 02:59:34,193 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 02:59:34,197 INFO L168 Benchmark]: Toolchain (without parser) took 1212.25 ms. Allocated memory was 100.7 MB in the beginning and 144.7 MB in the end (delta: 44.0 MB). Free memory was 63.0 MB in the beginning and 99.1 MB in the end (delta: -36.1 MB). Peak memory consumption was 9.7 MB. Max. memory is 16.1 GB. [2020-11-28 02:59:34,198 INFO L168 Benchmark]: CDTParser took 0.62 ms. Allocated memory is still 100.7 MB. Free memory was 67.5 MB in the beginning and 67.4 MB in the end (delta: 69.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 02:59:34,199 INFO L168 Benchmark]: CACSL2BoogieTranslator took 527.78 ms. Allocated memory is still 100.7 MB. Free memory was 62.8 MB in the beginning and 44.6 MB in the end (delta: 18.2 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-11-28 02:59:34,201 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.02 ms. Allocated memory was 100.7 MB in the beginning and 144.7 MB in the end (delta: 44.0 MB). Free memory was 44.6 MB in the beginning and 121.2 MB in the end (delta: -76.6 MB). Peak memory consumption was 5.7 MB. Max. memory is 16.1 GB. [2020-11-28 02:59:34,202 INFO L168 Benchmark]: Boogie Preprocessor took 15.61 ms. Allocated memory is still 144.7 MB. Free memory was 121.2 MB in the beginning and 120.2 MB in the end (delta: 962.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 02:59:34,204 INFO L168 Benchmark]: RCFGBuilder took 233.35 ms. Allocated memory is still 144.7 MB. Free memory was 120.2 MB in the beginning and 111.7 MB in the end (delta: 8.5 MB). Peak memory consumption was 10.3 MB. Max. memory is 16.1 GB. [2020-11-28 02:59:34,210 INFO L168 Benchmark]: TraceAbstraction took 316.17 ms. Allocated memory is still 144.7 MB. Free memory was 110.9 MB in the beginning and 100.4 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 02:59:34,211 INFO L168 Benchmark]: Witness Printer took 51.40 ms. Allocated memory is still 144.7 MB. Free memory was 100.4 MB in the beginning and 99.1 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 02:59:34,219 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.62 ms. Allocated memory is still 100.7 MB. Free memory was 67.5 MB in the beginning and 67.4 MB in the end (delta: 69.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 527.78 ms. Allocated memory is still 100.7 MB. Free memory was 62.8 MB in the beginning and 44.6 MB in the end (delta: 18.2 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 58.02 ms. Allocated memory was 100.7 MB in the beginning and 144.7 MB in the end (delta: 44.0 MB). Free memory was 44.6 MB in the beginning and 121.2 MB in the end (delta: -76.6 MB). Peak memory consumption was 5.7 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 15.61 ms. Allocated memory is still 144.7 MB. Free memory was 121.2 MB in the beginning and 120.2 MB in the end (delta: 962.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 233.35 ms. Allocated memory is still 144.7 MB. Free memory was 120.2 MB in the beginning and 111.7 MB in the end (delta: 8.5 MB). Peak memory consumption was 10.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 316.17 ms. Allocated memory is still 144.7 MB. Free memory was 110.9 MB in the beginning and 100.4 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Witness Printer took 51.40 ms. Allocated memory is still 144.7 MB. Free memory was 100.4 MB in the beginning and 99.1 MB in the end (delta: 1.3 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...