./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 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_d42d77ea-51da-4330-8557-733cbc002a91/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_d42d77ea-51da-4330-8557-733cbc002a91/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d42d77ea-51da-4330-8557-733cbc002a91/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d42d77ea-51da-4330-8557-733cbc002a91/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-zilu/benchmark48_linear.i -s /tmp/vcloud-vcloud-master/worker/run_dir_d42d77ea-51da-4330-8557-733cbc002a91/bin/utaipan/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d42d77ea-51da-4330-8557-733cbc002a91/bin/utaipan --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 Taipan --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 0.2.0-7b2dab5 [2020-12-09 15:36:33,650 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 15:36:33,652 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 15:36:33,672 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 15:36:33,673 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 15:36:33,674 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 15:36:33,675 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 15:36:33,677 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 15:36:33,678 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 15:36:33,679 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 15:36:33,680 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 15:36:33,681 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 15:36:33,681 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 15:36:33,682 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 15:36:33,683 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 15:36:33,684 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 15:36:33,685 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 15:36:33,686 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 15:36:33,687 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 15:36:33,689 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 15:36:33,691 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 15:36:33,692 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 15:36:33,693 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 15:36:33,694 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 15:36:33,696 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 15:36:33,696 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 15:36:33,697 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 15:36:33,697 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 15:36:33,698 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 15:36:33,699 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 15:36:33,699 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 15:36:33,699 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 15:36:33,700 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 15:36:33,701 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 15:36:33,702 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 15:36:33,702 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 15:36:33,702 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 15:36:33,703 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 15:36:33,703 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 15:36:33,703 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 15:36:33,704 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 15:36:33,704 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d42d77ea-51da-4330-8557-733cbc002a91/bin/utaipan/config/svcomp-Overflow-32bit-Taipan_Default.epf [2020-12-09 15:36:33,720 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 15:36:33,720 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 15:36:33,720 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 15:36:33,720 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 15:36:33,721 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 15:36:33,721 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 15:36:33,721 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 15:36:33,721 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 15:36:33,721 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 15:36:33,721 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 15:36:33,721 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 15:36:33,721 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 15:36:33,721 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 15:36:33,722 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 15:36:33,722 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 15:36:33,722 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 15:36:33,722 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 15:36:33,722 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-09 15:36:33,723 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 15:36:33,723 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 15:36:33,723 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 15:36:33,723 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 15:36:33,723 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 15:36:33,723 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 15:36:33,723 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-12-09 15:36:33,723 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 15:36:33,723 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 15:36:33,723 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 15:36:33,724 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 15:36:33,724 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 15:36:33,724 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 15:36:33,724 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 15:36:33,724 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 15:36:33,724 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 15:36:33,724 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 15:36:33,724 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 15:36:33,724 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 15:36:33,725 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 15:36:33,725 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 15:36:33,725 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 15:36:33,725 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_d42d77ea-51da-4330-8557-733cbc002a91/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_d42d77ea-51da-4330-8557-733cbc002a91/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8a8b20edf17b5ae539e1f71c8b51bedd7c34357d [2020-12-09 15:36:33,896 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 15:36:33,912 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 15:36:33,914 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 15:36:33,915 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 15:36:33,915 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 15:36:33,916 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d42d77ea-51da-4330-8557-733cbc002a91/bin/utaipan/../../sv-benchmarks/c/loop-zilu/benchmark48_linear.i [2020-12-09 15:36:33,956 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d42d77ea-51da-4330-8557-733cbc002a91/bin/utaipan/data/8d073ba68/73eb16930b9f44638d14109c9370c043/FLAG549ef36a4 [2020-12-09 15:36:34,314 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 15:36:34,314 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d42d77ea-51da-4330-8557-733cbc002a91/sv-benchmarks/c/loop-zilu/benchmark48_linear.i [2020-12-09 15:36:34,319 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d42d77ea-51da-4330-8557-733cbc002a91/bin/utaipan/data/8d073ba68/73eb16930b9f44638d14109c9370c043/FLAG549ef36a4 [2020-12-09 15:36:34,332 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d42d77ea-51da-4330-8557-733cbc002a91/bin/utaipan/data/8d073ba68/73eb16930b9f44638d14109c9370c043 [2020-12-09 15:36:34,334 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 15:36:34,335 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 15:36:34,336 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 15:36:34,336 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 15:36:34,338 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 15:36:34,339 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:36:34" (1/1) ... [2020-12-09 15:36:34,340 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@180e28a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:36:34, skipping insertion in model container [2020-12-09 15:36:34,340 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:36:34" (1/1) ... [2020-12-09 15:36:34,346 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 15:36:34,356 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 15:36:34,461 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_d42d77ea-51da-4330-8557-733cbc002a91/sv-benchmarks/c/loop-zilu/benchmark48_linear.i[868,881] [2020-12-09 15:36:34,466 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 15:36:34,472 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 15:36:34,480 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_d42d77ea-51da-4330-8557-733cbc002a91/sv-benchmarks/c/loop-zilu/benchmark48_linear.i[868,881] [2020-12-09 15:36:34,483 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 15:36:34,493 INFO L208 MainTranslator]: Completed translation [2020-12-09 15:36:34,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:36:34 WrapperNode [2020-12-09 15:36:34,493 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 15:36:34,494 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 15:36:34,494 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 15:36:34,494 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 15:36:34,500 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:36:34" (1/1) ... [2020-12-09 15:36:34,504 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:36:34" (1/1) ... [2020-12-09 15:36:34,516 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 15:36:34,517 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 15:36:34,517 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 15:36:34,517 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 15:36:34,523 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:36:34" (1/1) ... [2020-12-09 15:36:34,523 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:36:34" (1/1) ... [2020-12-09 15:36:34,524 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:36:34" (1/1) ... [2020-12-09 15:36:34,524 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:36:34" (1/1) ... [2020-12-09 15:36:34,526 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:36:34" (1/1) ... [2020-12-09 15:36:34,528 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:36:34" (1/1) ... [2020-12-09 15:36:34,529 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:36:34" (1/1) ... [2020-12-09 15:36:34,530 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 15:36:34,531 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 15:36:34,531 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 15:36:34,531 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 15:36:34,531 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:36:34" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d42d77ea-51da-4330-8557-733cbc002a91/bin/utaipan/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 [2020-12-09 15:36:34,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-09 15:36:34,598 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 15:36:34,598 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 15:36:34,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 15:36:34,788 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 15:36:34,788 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2020-12-09 15:36:34,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:36:34 BoogieIcfgContainer [2020-12-09 15:36:34,790 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 15:36:34,792 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 15:36:34,792 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 15:36:34,795 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 15:36:34,795 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 03:36:34" (1/3) ... [2020-12-09 15:36:34,796 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68628331 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:36:34, skipping insertion in model container [2020-12-09 15:36:34,796 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:36:34" (2/3) ... [2020-12-09 15:36:34,797 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68628331 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:36:34, skipping insertion in model container [2020-12-09 15:36:34,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:36:34" (3/3) ... [2020-12-09 15:36:34,798 INFO L111 eAbstractionObserver]: Analyzing ICFG benchmark48_linear.i [2020-12-09 15:36:34,808 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 15:36:34,810 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2020-12-09 15:36:34,817 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-12-09 15:36:34,833 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 15:36:34,833 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 15:36:34,834 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 15:36:34,834 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 15:36:34,834 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 15:36:34,834 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 15:36:34,834 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 15:36:34,834 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 15:36:34,843 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2020-12-09 15:36:34,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-09 15:36:34,846 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 15:36:34,847 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-12-09 15:36:34,847 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]=== [2020-12-09 15:36:34,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 15:36:34,852 INFO L82 PathProgramCache]: Analyzing trace with hash 2181983, now seen corresponding path program 1 times [2020-12-09 15:36:34,860 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 15:36:34,860 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613776906] [2020-12-09 15:36:34,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 15:36:34,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 15:36:34,951 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 15:36:34,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 15:36:34,967 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 15:36:34,985 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-12-09 15:36:34,985 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-09 15:36:34,986 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-09 15:36:35,003 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 03:36:35 BoogieIcfgContainer [2020-12-09 15:36:35,003 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 15:36:35,004 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 15:36:35,004 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 15:36:35,004 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 15:36:35,005 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:36:34" (3/4) ... [2020-12-09 15:36:35,007 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-09 15:36:35,045 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_d42d77ea-51da-4330-8557-733cbc002a91/bin/utaipan/witness.graphml [2020-12-09 15:36:35,045 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 15:36:35,047 INFO L168 Benchmark]: Toolchain (without parser) took 711.08 ms. Allocated memory is still 86.0 MB. Free memory was 65.4 MB in the beginning and 63.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2020-12-09 15:36:35,048 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 86.0 MB. Free memory is still 61.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 15:36:35,049 INFO L168 Benchmark]: CACSL2BoogieTranslator took 157.46 ms. Allocated memory is still 86.0 MB. Free memory was 65.4 MB in the beginning and 56.0 MB in the end (delta: 9.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-09 15:36:35,049 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.46 ms. Allocated memory is still 86.0 MB. Free memory was 56.0 MB in the beginning and 54.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 15:36:35,050 INFO L168 Benchmark]: Boogie Preprocessor took 13.24 ms. Allocated memory is still 86.0 MB. Free memory was 54.5 MB in the beginning and 53.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 15:36:35,050 INFO L168 Benchmark]: RCFGBuilder took 259.81 ms. Allocated memory is still 86.0 MB. Free memory was 53.5 MB in the beginning and 55.0 MB in the end (delta: -1.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-09 15:36:35,051 INFO L168 Benchmark]: TraceAbstraction took 211.68 ms. Allocated memory is still 86.0 MB. Free memory was 54.7 MB in the beginning and 43.1 MB in the end (delta: 11.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-09 15:36:35,052 INFO L168 Benchmark]: Witness Printer took 41.20 ms. Allocated memory is still 86.0 MB. Free memory was 43.1 MB in the beginning and 63.7 MB in the end (delta: -20.6 MB). Peak memory consumption was 5.0 MB. Max. memory is 16.1 GB. [2020-12-09 15:36:35,055 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 86.0 MB. Free memory is still 61.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 157.46 ms. Allocated memory is still 86.0 MB. Free memory was 65.4 MB in the beginning and 56.0 MB in the end (delta: 9.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 22.46 ms. Allocated memory is still 86.0 MB. Free memory was 56.0 MB in the beginning and 54.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 13.24 ms. Allocated memory is still 86.0 MB. Free memory was 54.5 MB in the beginning and 53.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 259.81 ms. Allocated memory is still 86.0 MB. Free memory was 53.5 MB in the beginning and 55.0 MB in the end (delta: -1.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 211.68 ms. Allocated memory is still 86.0 MB. Free memory was 54.7 MB in the beginning and 43.1 MB in the end (delta: 11.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Witness Printer took 41.20 ms. Allocated memory is still 86.0 MB. Free memory was 43.1 MB in the beginning and 63.7 MB in the end (delta: -20.6 MB). Peak memory consumption was 5.0 MB. 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