./Ultimate.py --spec ../../sv-benchmarks/c/NoOverflows.prp --file ../../sv-benchmarks/c/termination-numeric/Avg_true_false-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_e2c28acc-554c-4d7a-a6e4-f59e751cbe28/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_e2c28acc-554c-4d7a-a6e4-f59e751cbe28/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_e2c28acc-554c-4d7a-a6e4-f59e751cbe28/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_e2c28acc-554c-4d7a-a6e4-f59e751cbe28/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-numeric/Avg_true_false-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_e2c28acc-554c-4d7a-a6e4-f59e751cbe28/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_e2c28acc-554c-4d7a-a6e4-f59e751cbe28/bin-2019/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 64bit --witnessprinter.graph.data.programhash 1a117db397319419a0ed364ecaa141ed414cdab4 ....................................................................................................................................................................................................................................................... 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 0.1.23-5842f4b [2018-11-18 14:50:41,582 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 14:50:41,583 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 14:50:41,591 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 14:50:41,591 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 14:50:41,592 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 14:50:41,592 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 14:50:41,593 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 14:50:41,595 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 14:50:41,595 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 14:50:41,596 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 14:50:41,596 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 14:50:41,596 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 14:50:41,597 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 14:50:41,598 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 14:50:41,598 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 14:50:41,599 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 14:50:41,600 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 14:50:41,601 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 14:50:41,602 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 14:50:41,603 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 14:50:41,604 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 14:50:41,605 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 14:50:41,605 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 14:50:41,606 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 14:50:41,606 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 14:50:41,607 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 14:50:41,607 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 14:50:41,608 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 14:50:41,609 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 14:50:41,609 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 14:50:41,609 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 14:50:41,609 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 14:50:41,610 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 14:50:41,610 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 14:50:41,611 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 14:50:41,611 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_e2c28acc-554c-4d7a-a6e4-f59e751cbe28/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2018-11-18 14:50:41,618 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 14:50:41,618 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 14:50:41,619 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 14:50:41,619 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 14:50:41,619 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 14:50:41,619 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 14:50:41,620 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 14:50:41,620 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 14:50:41,620 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 14:50:41,620 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 14:50:41,620 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 14:50:41,620 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 14:50:41,620 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 14:50:41,621 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 14:50:41,621 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 14:50:41,621 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 14:50:41,621 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 14:50:41,621 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 14:50:41,622 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 14:50:41,622 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 14:50:41,622 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-18 14:50:41,622 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 14:50:41,622 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 14:50:41,622 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 14:50:41,622 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 14:50:41,623 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 14:50:41,623 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 14:50:41,623 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 14:50:41,623 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 14:50:41,623 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 14:50:41,623 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 14:50:41,623 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 14:50:41,623 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 14:50:41,624 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 14:50:41,624 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 14:50:41,624 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 14:50:41,624 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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/working_dir_e2c28acc-554c-4d7a-a6e4-f59e751cbe28/bin-2019/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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1a117db397319419a0ed364ecaa141ed414cdab4 [2018-11-18 14:50:41,646 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 14:50:41,653 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 14:50:41,654 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 14:50:41,655 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 14:50:41,655 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 14:50:41,656 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_e2c28acc-554c-4d7a-a6e4-f59e751cbe28/bin-2019/utaipan/../../sv-benchmarks/c/termination-numeric/Avg_true_false-no-overflow.c [2018-11-18 14:50:41,689 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e2c28acc-554c-4d7a-a6e4-f59e751cbe28/bin-2019/utaipan/data/f80b0eaea/ea266799b85643d489b6d56c373f0c73/FLAG83b4bd17c [2018-11-18 14:50:41,979 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 14:50:41,979 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_e2c28acc-554c-4d7a-a6e4-f59e751cbe28/sv-benchmarks/c/termination-numeric/Avg_true_false-no-overflow.c [2018-11-18 14:50:41,984 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e2c28acc-554c-4d7a-a6e4-f59e751cbe28/bin-2019/utaipan/data/f80b0eaea/ea266799b85643d489b6d56c373f0c73/FLAG83b4bd17c [2018-11-18 14:50:41,993 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_e2c28acc-554c-4d7a-a6e4-f59e751cbe28/bin-2019/utaipan/data/f80b0eaea/ea266799b85643d489b6d56c373f0c73 [2018-11-18 14:50:41,995 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 14:50:41,996 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 14:50:41,997 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 14:50:41,997 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 14:50:41,999 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 14:50:42,000 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:50:41" (1/1) ... [2018-11-18 14:50:42,001 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47f35898 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:50:42, skipping insertion in model container [2018-11-18 14:50:42,001 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:50:41" (1/1) ... [2018-11-18 14:50:42,007 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 14:50:42,019 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 14:50:42,120 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:50:42,122 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 14:50:42,132 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:50:42,139 INFO L195 MainTranslator]: Completed translation [2018-11-18 14:50:42,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:50:42 WrapperNode [2018-11-18 14:50:42,139 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 14:50:42,140 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 14:50:42,140 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 14:50:42,140 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 14:50:42,145 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:50:42" (1/1) ... [2018-11-18 14:50:42,148 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:50:42" (1/1) ... [2018-11-18 14:50:42,152 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 14:50:42,152 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 14:50:42,152 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 14:50:42,152 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 14:50:42,157 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:50:42" (1/1) ... [2018-11-18 14:50:42,157 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:50:42" (1/1) ... [2018-11-18 14:50:42,158 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:50:42" (1/1) ... [2018-11-18 14:50:42,158 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:50:42" (1/1) ... [2018-11-18 14:50:42,161 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:50:42" (1/1) ... [2018-11-18 14:50:42,162 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:50:42" (1/1) ... [2018-11-18 14:50:42,163 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:50:42" (1/1) ... [2018-11-18 14:50:42,164 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 14:50:42,165 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 14:50:42,165 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 14:50:42,165 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 14:50:42,165 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:50:42" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e2c28acc-554c-4d7a-a6e4-f59e751cbe28/bin-2019/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 [2018-11-18 14:50:42,239 INFO L130 BoogieDeclarations]: Found specification of procedure average [2018-11-18 14:50:42,240 INFO L138 BoogieDeclarations]: Found implementation of procedure average [2018-11-18 14:50:42,240 INFO L130 BoogieDeclarations]: Found specification of procedure random [2018-11-18 14:50:42,240 INFO L138 BoogieDeclarations]: Found implementation of procedure random [2018-11-18 14:50:42,240 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 14:50:42,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 14:50:42,240 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 14:50:42,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 14:50:42,240 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 14:50:42,240 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 14:50:42,382 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 14:50:42,383 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:50:42 BoogieIcfgContainer [2018-11-18 14:50:42,383 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 14:50:42,384 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 14:50:42,384 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 14:50:42,387 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 14:50:42,387 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 02:50:41" (1/3) ... [2018-11-18 14:50:42,388 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71ac640a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:50:42, skipping insertion in model container [2018-11-18 14:50:42,388 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:50:42" (2/3) ... [2018-11-18 14:50:42,388 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71ac640a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:50:42, skipping insertion in model container [2018-11-18 14:50:42,388 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:50:42" (3/3) ... [2018-11-18 14:50:42,390 INFO L112 eAbstractionObserver]: Analyzing ICFG Avg_true_false-no-overflow.c [2018-11-18 14:50:42,398 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 14:50:42,405 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 12 error locations. [2018-11-18 14:50:42,418 INFO L257 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2018-11-18 14:50:42,445 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 14:50:42,445 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 14:50:42,445 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 14:50:42,445 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 14:50:42,445 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 14:50:42,445 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 14:50:42,445 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 14:50:42,446 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 14:50:42,463 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states. [2018-11-18 14:50:42,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-18 14:50:42,467 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:50:42,468 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:50:42,470 INFO L423 AbstractCegarLoop]: === Iteration 1 === [averageErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, averageErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, averageErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, averageErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, averageErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, averageErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, averageErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, averageErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, averageErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, averageErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, randomErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, randomErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 14:50:42,473 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:50:42,473 INFO L82 PathProgramCache]: Analyzing trace with hash -1770928927, now seen corresponding path program 1 times [2018-11-18 14:50:42,474 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:50:42,512 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:50:42,512 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:50:42,512 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:50:42,512 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:50:42,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:50:42,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:50:42,558 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 14:50:42,574 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 02:50:42 BoogieIcfgContainer [2018-11-18 14:50:42,574 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 14:50:42,574 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 14:50:42,575 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 14:50:42,575 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 14:50:42,575 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:50:42" (3/4) ... [2018-11-18 14:50:42,577 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-18 14:50:42,601 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_e2c28acc-554c-4d7a-a6e4-f59e751cbe28/bin-2019/utaipan/witness.graphml [2018-11-18 14:50:42,602 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 14:50:42,602 INFO L168 Benchmark]: Toolchain (without parser) took 606.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 958.1 MB in the beginning and 1.1 GB in the end (delta: -149.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 14:50:42,603 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 14:50:42,604 INFO L168 Benchmark]: CACSL2BoogieTranslator took 142.75 ms. Allocated memory is still 1.0 GB. Free memory was 958.1 MB in the beginning and 947.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 14:50:42,604 INFO L168 Benchmark]: Boogie Procedure Inliner took 11.76 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 944.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 14:50:42,604 INFO L168 Benchmark]: Boogie Preprocessor took 12.41 ms. Allocated memory is still 1.0 GB. Free memory is still 944.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 14:50:42,605 INFO L168 Benchmark]: RCFGBuilder took 218.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 944.6 MB in the beginning and 1.1 GB in the end (delta: -183.9 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. [2018-11-18 14:50:42,605 INFO L168 Benchmark]: TraceAbstraction took 190.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.9 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. [2018-11-18 14:50:42,606 INFO L168 Benchmark]: Witness Printer took 27.15 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 14:50:42,608 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 142.75 ms. Allocated memory is still 1.0 GB. Free memory was 958.1 MB in the beginning and 947.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 11.76 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 944.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.41 ms. Allocated memory is still 1.0 GB. Free memory is still 944.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 218.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 944.6 MB in the beginning and 1.1 GB in the end (delta: -183.9 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 190.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 20.9 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. * Witness Printer took 27.15 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 35]: integer overflow possible integer overflow possible We found a FailurePath: [L25] int x = __VERIFIER_nondet_int(); [L26] int y = __VERIFIER_nondet_int(); [L27] int z = __VERIFIER_nondet_int(); [L28] CALL random() [L33] int x = __VERIFIER_nondet_int(); [L34] COND TRUE x < 0 VAL [x=-2147483648] [L35] -x VAL [x=-2147483648] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 52 locations, 12 error locations. UNSAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=52occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...