./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-zilu/benchmark48_linear.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_1239520d-4c6b-4589-ad3b-ac9451b2c7cc/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_1239520d-4c6b-4589-ad3b-ac9451b2c7cc/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_1239520d-4c6b-4589-ad3b-ac9451b2c7cc/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_1239520d-4c6b-4589-ad3b-ac9451b2c7cc/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-zilu/benchmark48_linear.i -s /tmp/vcloud-vcloud-master/worker/run_dir_1239520d-4c6b-4589-ad3b-ac9451b2c7cc/bin/uautomizer/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_1239520d-4c6b-4589-ad3b-ac9451b2c7cc/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 32bit --witnessprinter.graph.data.programhash 8a8b20edf17b5ae539e1f71c8b51bedd7c34357d ...................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW) --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 03:15:14,519 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:15:14,522 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:15:14,610 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:15:14,611 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:15:14,612 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:15:14,614 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:15:14,642 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:15:14,647 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:15:14,652 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:15:14,653 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:15:14,655 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:15:14,656 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:15:14,663 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:15:14,664 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:15:14,665 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:15:14,666 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:15:14,667 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:15:14,669 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:15:14,678 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:15:14,681 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:15:14,683 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:15:14,685 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:15:14,688 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:15:14,692 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:15:14,692 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:15:14,693 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:15:14,695 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:15:14,696 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:15:14,697 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:15:14,697 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:15:14,698 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:15:14,700 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:15:14,701 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:15:14,703 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:15:14,703 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:15:14,704 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:15:14,704 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:15:14,704 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:15:14,705 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:15:14,706 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:15:14,708 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_1239520d-4c6b-4589-ad3b-ac9451b2c7cc/bin/uautomizer/config/svcomp-Overflow-32bit-Automizer_Default.epf [2020-11-28 03:15:14,749 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:15:14,750 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:15:14,751 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:15:14,752 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:15:14,752 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:15:14,752 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:15:14,752 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:15:14,752 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 03:15:14,753 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:15:14,753 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:15:14,754 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:15:14,754 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:15:14,754 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:15:14,754 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:15:14,755 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-28 03:15:14,755 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:15:14,755 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:15:14,755 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:15:14,755 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:15:14,756 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:15:14,756 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:15:14,756 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:15:14,756 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:15:14,756 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:15:14,757 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:15:14,757 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:15:14,757 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:15:14,757 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:15:14,757 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:15:14,757 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:15:14,758 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:15:14,758 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_1239520d-4c6b-4589-ad3b-ac9451b2c7cc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_1239520d-4c6b-4589-ad3b-ac9451b2c7cc/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8a8b20edf17b5ae539e1f71c8b51bedd7c34357d [2020-11-28 03:15:15,038 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:15:15,076 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:15:15,081 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:15:15,082 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:15:15,083 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:15:15,084 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_1239520d-4c6b-4589-ad3b-ac9451b2c7cc/bin/uautomizer/../../sv-benchmarks/c/loop-zilu/benchmark48_linear.i [2020-11-28 03:15:15,171 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1239520d-4c6b-4589-ad3b-ac9451b2c7cc/bin/uautomizer/data/f24129c0a/712f83ed686746e1b30755faf0e7cc3c/FLAGd853253f6 [2020-11-28 03:15:15,599 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:15:15,599 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_1239520d-4c6b-4589-ad3b-ac9451b2c7cc/sv-benchmarks/c/loop-zilu/benchmark48_linear.i [2020-11-28 03:15:15,608 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1239520d-4c6b-4589-ad3b-ac9451b2c7cc/bin/uautomizer/data/f24129c0a/712f83ed686746e1b30755faf0e7cc3c/FLAGd853253f6 [2020-11-28 03:15:15,624 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_1239520d-4c6b-4589-ad3b-ac9451b2c7cc/bin/uautomizer/data/f24129c0a/712f83ed686746e1b30755faf0e7cc3c [2020-11-28 03:15:15,627 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:15:15,630 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:15:15,632 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:15:15,633 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:15:15,636 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:15:15,638 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:15:15" (1/1) ... [2020-11-28 03:15:15,640 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78dc312f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:15, skipping insertion in model container [2020-11-28 03:15:15,640 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:15:15" (1/1) ... [2020-11-28 03:15:15,648 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:15:15,663 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:15:15,853 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:15:15,870 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:15:15,892 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:15:15,912 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:15:15,913 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:15 WrapperNode [2020-11-28 03:15:15,913 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:15:15,916 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:15:15,916 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:15:15,918 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:15:15,926 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:15" (1/1) ... [2020-11-28 03:15:15,936 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:15" (1/1) ... [2020-11-28 03:15:15,961 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:15:15,962 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:15:15,963 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:15:15,963 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:15:15,970 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:15" (1/1) ... [2020-11-28 03:15:15,971 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:15" (1/1) ... [2020-11-28 03:15:15,984 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:15" (1/1) ... [2020-11-28 03:15:15,985 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:15" (1/1) ... [2020-11-28 03:15:15,987 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:15" (1/1) ... [2020-11-28 03:15:15,990 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:15" (1/1) ... [2020-11-28 03:15:15,992 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:15" (1/1) ... [2020-11-28 03:15:15,993 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:15:15,994 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:15:15,994 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:15:15,994 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:15:16,002 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:15" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1239520d-4c6b-4589-ad3b-ac9451b2c7cc/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:15:16,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:15:16,078 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:15:16,079 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:15:16,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:15:16,495 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:15:16,496 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-28 03:15:16,498 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:15:16 BoogieIcfgContainer [2020-11-28 03:15:16,499 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:15:16,501 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:15:16,501 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:15:16,504 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:15:16,504 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:15:15" (1/3) ... [2020-11-28 03:15:16,505 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62b9fc53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:15:16, skipping insertion in model container [2020-11-28 03:15:16,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:15:15" (2/3) ... [2020-11-28 03:15:16,506 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62b9fc53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:15:16, skipping insertion in model container [2020-11-28 03:15:16,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:15:16" (3/3) ... [2020-11-28 03:15:16,507 INFO L111 eAbstractionObserver]: Analyzing ICFG benchmark48_linear.i [2020-11-28 03:15:16,518 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:15:16,522 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2020-11-28 03:15:16,534 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-11-28 03:15:16,575 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:15:16,575 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:15:16,575 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:15:16,575 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:15:16,576 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:15:16,576 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:15:16,576 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:15:16,576 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:15:16,591 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2020-11-28 03:15:16,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-28 03:15:16,596 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:15:16,597 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-11-28 03:15:16,598 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-28 03:15:16,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:15:16,609 INFO L82 PathProgramCache]: Analyzing trace with hash 28695973, now seen corresponding path program 1 times [2020-11-28 03:15:16,618 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:15:16,619 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830346832] [2020-11-28 03:15:16,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:15:16,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:15:16,746 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:15:16,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:15:16,794 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:15:16,817 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:15:16,818 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 03:15:16,818 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:15:16,844 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:15:16 BoogieIcfgContainer [2020-11-28 03:15:16,844 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:15:16,846 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:15:16,846 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:15:16,847 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:15:16,848 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:15:16" (3/4) ... [2020-11-28 03:15:16,849 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 03:15:16,897 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_1239520d-4c6b-4589-ad3b-ac9451b2c7cc/bin/uautomizer/witness.graphml [2020-11-28 03:15:16,897 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:15:16,899 INFO L168 Benchmark]: Toolchain (without parser) took 1269.54 ms. Allocated memory is still 115.3 MB. Free memory was 83.4 MB in the beginning and 62.9 MB in the end (delta: 20.4 MB). Peak memory consumption was 18.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:15:16,900 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 77.6 MB. Free memory was 35.5 MB in the beginning and 35.5 MB in the end (delta: 37.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:15:16,905 INFO L168 Benchmark]: CACSL2BoogieTranslator took 281.03 ms. Allocated memory is still 115.3 MB. Free memory was 83.4 MB in the beginning and 91.4 MB in the end (delta: -8.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:15:16,906 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.01 ms. Allocated memory is still 115.3 MB. Free memory was 91.4 MB in the beginning and 89.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:15:16,906 INFO L168 Benchmark]: Boogie Preprocessor took 30.64 ms. Allocated memory is still 115.3 MB. Free memory was 89.7 MB in the beginning and 88.7 MB in the end (delta: 996.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:15:16,907 INFO L168 Benchmark]: RCFGBuilder took 505.72 ms. Allocated memory is still 115.3 MB. Free memory was 88.7 MB in the beginning and 76.7 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 03:15:16,908 INFO L168 Benchmark]: TraceAbstraction took 343.51 ms. Allocated memory is still 115.3 MB. Free memory was 76.2 MB in the beginning and 64.6 MB in the end (delta: 11.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 03:15:16,908 INFO L168 Benchmark]: Witness Printer took 50.78 ms. Allocated memory is still 115.3 MB. Free memory was 64.1 MB in the beginning and 62.9 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:15:16,916 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 77.6 MB. Free memory was 35.5 MB in the beginning and 35.5 MB in the end (delta: 37.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 281.03 ms. Allocated memory is still 115.3 MB. Free memory was 83.4 MB in the beginning and 91.4 MB in the end (delta: -8.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 45.01 ms. Allocated memory is still 115.3 MB. Free memory was 91.4 MB in the beginning and 89.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 30.64 ms. Allocated memory is still 115.3 MB. Free memory was 89.7 MB in the beginning and 88.7 MB in the end (delta: 996.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 505.72 ms. Allocated memory is still 115.3 MB. Free memory was 88.7 MB in the beginning and 76.7 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 343.51 ms. Allocated memory is still 115.3 MB. Free memory was 76.2 MB in the beginning and 64.6 MB in the end (delta: 11.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Witness Printer took 50.78 ms. Allocated memory is still 115.3 MB. Free memory was 64.1 MB in the beginning and 62.9 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 25]: integer overflow possible integer overflow possible We found a FailurePath: [L20] int i = __VERIFIER_nondet_int(); [L21] int j = __VERIFIER_nondet_int(); [L22] int k = __VERIFIER_nondet_int(); [L23] COND FALSE !(!(i 0)) [L24] COND TRUE i