./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/4NestedWith3Variables-2.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_2fe50930-cc4e-4668-8b4f-bcef85743d58/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_2fe50930-cc4e-4668-8b4f-bcef85743d58/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2fe50930-cc4e-4668-8b4f-bcef85743d58/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2fe50930-cc4e-4668-8b4f-bcef85743d58/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted/4NestedWith3Variables-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_2fe50930-cc4e-4668-8b4f-bcef85743d58/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2fe50930-cc4e-4668-8b4f-bcef85743d58/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 0dc4638329f6bf3c2f87e6e34ebc8b8484b48fb2 ................................................................................................................................................................................................................................. 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 [2020-11-29 20:08:19,592 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 20:08:19,594 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 20:08:19,658 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 20:08:19,670 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 20:08:19,671 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 20:08:19,673 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 20:08:19,674 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 20:08:19,677 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 20:08:19,678 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 20:08:19,679 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 20:08:19,681 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 20:08:19,682 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 20:08:19,683 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 20:08:19,685 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 20:08:19,686 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 20:08:19,687 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 20:08:19,689 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 20:08:19,691 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 20:08:19,694 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 20:08:19,696 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 20:08:19,698 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 20:08:19,700 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 20:08:19,701 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 20:08:19,705 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 20:08:19,706 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 20:08:19,706 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 20:08:19,707 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 20:08:19,708 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 20:08:19,709 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 20:08:19,709 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 20:08:19,712 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 20:08:19,713 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 20:08:19,714 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 20:08:19,715 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 20:08:19,716 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 20:08:19,717 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 20:08:19,717 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 20:08:19,718 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 20:08:19,719 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 20:08:19,720 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 20:08:19,725 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2fe50930-cc4e-4668-8b4f-bcef85743d58/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2020-11-29 20:08:19,766 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 20:08:19,766 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 20:08:19,776 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 20:08:19,776 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 20:08:19,777 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 20:08:19,777 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 20:08:19,777 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 20:08:19,777 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 20:08:19,777 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 20:08:19,778 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 20:08:19,779 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 20:08:19,779 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 20:08:19,779 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-29 20:08:19,779 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 20:08:19,780 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 20:08:19,780 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 20:08:19,780 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 20:08:19,780 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 20:08:19,780 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 20:08:19,781 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 20:08:19,781 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 20:08:19,781 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 20:08:19,781 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 20:08:19,782 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 20:08:19,782 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 20:08:19,782 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 20:08:19,782 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 20:08:19,782 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 20:08:19,783 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_2fe50930-cc4e-4668-8b4f-bcef85743d58/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_2fe50930-cc4e-4668-8b4f-bcef85743d58/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0dc4638329f6bf3c2f87e6e34ebc8b8484b48fb2 [2020-11-29 20:08:20,056 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 20:08:20,091 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 20:08:20,094 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 20:08:20,095 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 20:08:20,096 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 20:08:20,097 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2fe50930-cc4e-4668-8b4f-bcef85743d58/bin/uautomizer/../../sv-benchmarks/c/termination-crafted/4NestedWith3Variables-2.c [2020-11-29 20:08:20,166 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2fe50930-cc4e-4668-8b4f-bcef85743d58/bin/uautomizer/data/daf93c04c/a4e4608ca5fb4c0cb5d5c9d73c9f14b6/FLAGae3a98743 [2020-11-29 20:08:20,619 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 20:08:20,630 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2fe50930-cc4e-4668-8b4f-bcef85743d58/sv-benchmarks/c/termination-crafted/4NestedWith3Variables-2.c [2020-11-29 20:08:20,638 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2fe50930-cc4e-4668-8b4f-bcef85743d58/bin/uautomizer/data/daf93c04c/a4e4608ca5fb4c0cb5d5c9d73c9f14b6/FLAGae3a98743 [2020-11-29 20:08:21,011 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2fe50930-cc4e-4668-8b4f-bcef85743d58/bin/uautomizer/data/daf93c04c/a4e4608ca5fb4c0cb5d5c9d73c9f14b6 [2020-11-29 20:08:21,015 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 20:08:21,017 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 20:08:21,020 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 20:08:21,020 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 20:08:21,024 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 20:08:21,026 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:08:21" (1/1) ... [2020-11-29 20:08:21,028 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ded7b1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:08:21, skipping insertion in model container [2020-11-29 20:08:21,028 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:08:21" (1/1) ... [2020-11-29 20:08:21,036 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 20:08:21,052 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 20:08:21,193 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:08:21,220 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 20:08:21,256 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:08:21,269 INFO L208 MainTranslator]: Completed translation [2020-11-29 20:08:21,270 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:08:21 WrapperNode [2020-11-29 20:08:21,270 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 20:08:21,271 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 20:08:21,272 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 20:08:21,272 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 20:08:21,280 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:08:21" (1/1) ... [2020-11-29 20:08:21,285 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:08:21" (1/1) ... [2020-11-29 20:08:21,303 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 20:08:21,304 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 20:08:21,304 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 20:08:21,304 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 20:08:21,312 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:08:21" (1/1) ... [2020-11-29 20:08:21,313 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:08:21" (1/1) ... [2020-11-29 20:08:21,314 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:08:21" (1/1) ... [2020-11-29 20:08:21,314 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:08:21" (1/1) ... [2020-11-29 20:08:21,316 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:08:21" (1/1) ... [2020-11-29 20:08:21,320 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:08:21" (1/1) ... [2020-11-29 20:08:21,321 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:08:21" (1/1) ... [2020-11-29 20:08:21,322 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 20:08:21,324 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 20:08:21,324 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 20:08:21,324 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 20:08:21,325 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:08:21" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2fe50930-cc4e-4668-8b4f-bcef85743d58/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 [2020-11-29 20:08:21,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 20:08:21,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 20:08:21,687 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 20:08:21,689 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-29 20:08:21,691 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:08:21 BoogieIcfgContainer [2020-11-29 20:08:21,711 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 20:08:21,713 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 20:08:21,714 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 20:08:21,717 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 20:08:21,717 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 08:08:21" (1/3) ... [2020-11-29 20:08:21,718 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@587827e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 08:08:21, skipping insertion in model container [2020-11-29 20:08:21,719 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:08:21" (2/3) ... [2020-11-29 20:08:21,719 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@587827e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 08:08:21, skipping insertion in model container [2020-11-29 20:08:21,719 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:08:21" (3/3) ... [2020-11-29 20:08:21,721 INFO L111 eAbstractionObserver]: Analyzing ICFG 4NestedWith3Variables-2.c [2020-11-29 20:08:21,736 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 20:08:21,739 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 16 error locations. [2020-11-29 20:08:21,751 INFO L253 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2020-11-29 20:08:21,776 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 20:08:21,777 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 20:08:21,777 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 20:08:21,777 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 20:08:21,777 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 20:08:21,777 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 20:08:21,777 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 20:08:21,778 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 20:08:21,795 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2020-11-29 20:08:21,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-29 20:08:21,800 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:08:21,800 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-11-29 20:08:21,801 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-29 20:08:21,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:08:21,807 INFO L82 PathProgramCache]: Analyzing trace with hash 31073, now seen corresponding path program 1 times [2020-11-29 20:08:21,815 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:08:21,815 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073958648] [2020-11-29 20:08:21,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:08:21,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:08:21,894 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:08:21,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:08:21,905 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:08:21,921 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:08:21,921 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-29 20:08:21,922 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 20:08:21,937 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 08:08:21 BoogieIcfgContainer [2020-11-29 20:08:21,938 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 20:08:21,939 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 20:08:21,939 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 20:08:21,939 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 20:08:21,939 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:08:21" (3/4) ... [2020-11-29 20:08:21,942 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-29 20:08:21,975 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_2fe50930-cc4e-4668-8b4f-bcef85743d58/bin/uautomizer/witness.graphml [2020-11-29 20:08:21,975 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 20:08:21,978 INFO L168 Benchmark]: Toolchain (without parser) took 958.93 ms. Allocated memory is still 90.2 MB. Free memory was 54.9 MB in the beginning and 41.8 MB in the end (delta: 13.0 MB). Peak memory consumption was 10.2 MB. Max. memory is 16.1 GB. [2020-11-29 20:08:21,978 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 90.2 MB. Free memory is still 70.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:08:21,979 INFO L168 Benchmark]: CACSL2BoogieTranslator took 250.53 ms. Allocated memory is still 90.2 MB. Free memory was 54.6 MB in the beginning and 69.0 MB in the end (delta: -14.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 20:08:21,980 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.62 ms. Allocated memory is still 90.2 MB. Free memory was 69.0 MB in the beginning and 67.7 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:08:21,981 INFO L168 Benchmark]: Boogie Preprocessor took 18.97 ms. Allocated memory is still 90.2 MB. Free memory was 67.7 MB in the beginning and 66.7 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:08:21,982 INFO L168 Benchmark]: RCFGBuilder took 387.88 ms. Allocated memory is still 90.2 MB. Free memory was 66.7 MB in the beginning and 54.6 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-29 20:08:21,985 INFO L168 Benchmark]: TraceAbstraction took 224.42 ms. Allocated memory is still 90.2 MB. Free memory was 54.3 MB in the beginning and 43.3 MB in the end (delta: 11.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-29 20:08:21,987 INFO L168 Benchmark]: Witness Printer took 36.85 ms. Allocated memory is still 90.2 MB. Free memory was 43.3 MB in the beginning and 41.8 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:08:21,991 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 90.2 MB. Free memory is still 70.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 250.53 ms. Allocated memory is still 90.2 MB. Free memory was 54.6 MB in the beginning and 69.0 MB in the end (delta: -14.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 31.62 ms. Allocated memory is still 90.2 MB. Free memory was 69.0 MB in the beginning and 67.7 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 18.97 ms. Allocated memory is still 90.2 MB. Free memory was 67.7 MB in the beginning and 66.7 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 387.88 ms. Allocated memory is still 90.2 MB. Free memory was 66.7 MB in the beginning and 54.6 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 224.42 ms. Allocated memory is still 90.2 MB. Free memory was 54.3 MB in the beginning and 43.3 MB in the end (delta: 11.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Witness Printer took 36.85 ms. Allocated memory is still 90.2 MB. Free memory was 43.3 MB in the beginning and 41.8 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 23]: integer overflow possible integer overflow possible We found a FailurePath: [L18] int a, b, q, olda; [L19] q = __VERIFIER_nondet_int() [L20] a = __VERIFIER_nondet_int() [L21] b = __VERIFIER_nondet_int() [L22] COND TRUE q > 0 [L23] q + a - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 38 locations, 16 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred 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...