./Ultimate.py --spec ../../sv-benchmarks/c/NoOverflows.prp --file ../../sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex1_false-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_b981d506-f5e7-4050-a408-5d1c47ddf715/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b981d506-f5e7-4050-a408-5d1c47ddf715/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b981d506-f5e7-4050-a408-5d1c47ddf715/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b981d506-f5e7-4050-a408-5d1c47ddf715/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex1_false-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_b981d506-f5e7-4050-a408-5d1c47ddf715/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b981d506-f5e7-4050-a408-5d1c47ddf715/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash d3ded6f4470c26b608997f650ebe66ef1cf6f845 .......................................................................................................................................................................................................................................................................................................................... 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 0.1.23-1dbac8b [2018-11-10 04:26:25,722 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 04:26:25,723 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 04:26:25,729 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 04:26:25,730 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 04:26:25,730 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 04:26:25,731 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 04:26:25,732 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 04:26:25,734 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 04:26:25,734 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 04:26:25,735 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 04:26:25,735 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 04:26:25,736 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 04:26:25,736 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 04:26:25,737 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 04:26:25,737 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 04:26:25,737 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 04:26:25,738 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 04:26:25,740 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 04:26:25,741 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 04:26:25,741 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 04:26:25,742 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 04:26:25,744 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 04:26:25,744 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 04:26:25,744 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 04:26:25,745 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 04:26:25,746 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 04:26:25,746 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 04:26:25,747 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 04:26:25,747 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 04:26:25,747 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 04:26:25,748 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 04:26:25,748 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 04:26:25,748 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 04:26:25,748 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 04:26:25,748 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 04:26:25,749 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b981d506-f5e7-4050-a408-5d1c47ddf715/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2018-11-10 04:26:25,757 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 04:26:25,757 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 04:26:25,757 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 04:26:25,757 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 04:26:25,758 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 04:26:25,758 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 04:26:25,758 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 04:26:25,758 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 04:26:25,758 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-10 04:26:25,758 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 04:26:25,758 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 04:26:25,759 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 04:26:25,759 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 04:26:25,759 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 04:26:25,759 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-10 04:26:25,759 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 04:26:25,759 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 04:26:25,759 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 04:26:25,759 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 04:26:25,760 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 04:26:25,760 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 04:26:25,760 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 04:26:25,760 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 04:26:25,760 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 04:26:25,760 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 04:26:25,760 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-10 04:26:25,761 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 04:26:25,761 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 04:26:25,761 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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_b981d506-f5e7-4050-a408-5d1c47ddf715/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d3ded6f4470c26b608997f650ebe66ef1cf6f845 [2018-11-10 04:26:25,787 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 04:26:25,796 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 04:26:25,799 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 04:26:25,800 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 04:26:25,800 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 04:26:25,801 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b981d506-f5e7-4050-a408-5d1c47ddf715/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex1_false-no-overflow.c [2018-11-10 04:26:25,842 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b981d506-f5e7-4050-a408-5d1c47ddf715/bin-2019/uautomizer/data/a35b414a6/2dd73c788aed4f01bcbbe945343785ba/FLAG8964ca8db [2018-11-10 04:26:26,252 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 04:26:26,253 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b981d506-f5e7-4050-a408-5d1c47ddf715/sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex1_false-no-overflow.c [2018-11-10 04:26:26,257 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b981d506-f5e7-4050-a408-5d1c47ddf715/bin-2019/uautomizer/data/a35b414a6/2dd73c788aed4f01bcbbe945343785ba/FLAG8964ca8db [2018-11-10 04:26:26,267 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b981d506-f5e7-4050-a408-5d1c47ddf715/bin-2019/uautomizer/data/a35b414a6/2dd73c788aed4f01bcbbe945343785ba [2018-11-10 04:26:26,270 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 04:26:26,271 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-10 04:26:26,271 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 04:26:26,271 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 04:26:26,274 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 04:26:26,274 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 04:26:26" (1/1) ... [2018-11-10 04:26:26,276 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fe532c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:26:26, skipping insertion in model container [2018-11-10 04:26:26,276 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 04:26:26" (1/1) ... [2018-11-10 04:26:26,282 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 04:26:26,293 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 04:26:26,387 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 04:26:26,389 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 04:26:26,398 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 04:26:26,405 INFO L193 MainTranslator]: Completed translation [2018-11-10 04:26:26,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:26:26 WrapperNode [2018-11-10 04:26:26,406 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 04:26:26,406 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 04:26:26,406 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 04:26:26,406 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 04:26:26,413 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:26:26" (1/1) ... [2018-11-10 04:26:26,414 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:26:26" (1/1) ... [2018-11-10 04:26:26,416 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:26:26" (1/1) ... [2018-11-10 04:26:26,417 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:26:26" (1/1) ... [2018-11-10 04:26:26,418 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:26:26" (1/1) ... [2018-11-10 04:26:26,419 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:26:26" (1/1) ... [2018-11-10 04:26:26,420 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:26:26" (1/1) ... [2018-11-10 04:26:26,420 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 04:26:26,421 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 04:26:26,421 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 04:26:26,421 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 04:26:26,421 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:26:26" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b981d506-f5e7-4050-a408-5d1c47ddf715/bin-2019/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 [2018-11-10 04:26:26,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 04:26:26,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 04:26:26,488 INFO L138 BoogieDeclarations]: Found implementation of procedure r1 [2018-11-10 04:26:26,488 INFO L138 BoogieDeclarations]: Found implementation of procedure rev [2018-11-10 04:26:26,489 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 04:26:26,489 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-10 04:26:26,489 INFO L130 BoogieDeclarations]: Found specification of procedure r1 [2018-11-10 04:26:26,489 INFO L130 BoogieDeclarations]: Found specification of procedure rev [2018-11-10 04:26:26,489 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 04:26:26,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 04:26:26,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 04:26:26,599 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 04:26:26,600 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 04:26:26 BoogieIcfgContainer [2018-11-10 04:26:26,600 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 04:26:26,600 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 04:26:26,600 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 04:26:26,602 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 04:26:26,602 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 04:26:26" (1/3) ... [2018-11-10 04:26:26,603 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e5305f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 04:26:26, skipping insertion in model container [2018-11-10 04:26:26,603 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:26:26" (2/3) ... [2018-11-10 04:26:26,603 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e5305f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 04:26:26, skipping insertion in model container [2018-11-10 04:26:26,603 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 04:26:26" (3/3) ... [2018-11-10 04:26:26,604 INFO L112 eAbstractionObserver]: Analyzing ICFG LeeJonesBen-Amram-POPL2001-Ex1_false-no-overflow.c [2018-11-10 04:26:26,610 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 04:26:26,615 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2018-11-10 04:26:26,623 INFO L257 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2018-11-10 04:26:26,646 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 04:26:26,647 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 04:26:26,647 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 04:26:26,647 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 04:26:26,647 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 04:26:26,647 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 04:26:26,647 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 04:26:26,647 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 04:26:26,647 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 04:26:26,662 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2018-11-10 04:26:26,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-10 04:26:26,666 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 04:26:26,667 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 04:26:26,669 INFO L424 AbstractCegarLoop]: === Iteration 1 === [r1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, r1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, r1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, r1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, r1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, r1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 04:26:26,674 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:26:26,674 INFO L82 PathProgramCache]: Analyzing trace with hash 1256099168, now seen corresponding path program 1 times [2018-11-10 04:26:26,675 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 04:26:26,676 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 04:26:26,710 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:26:26,710 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:26:26,710 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:26:26,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 04:26:26,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 04:26:26,823 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 04:26:26,824 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-10 04:26:26,827 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-10 04:26:26,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-10 04:26:26,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-10 04:26:26,840 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 7 states. [2018-11-10 04:26:27,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 04:26:27,010 INFO L93 Difference]: Finished difference Result 36 states and 38 transitions. [2018-11-10 04:26:27,011 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-10 04:26:27,012 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 12 [2018-11-10 04:26:27,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 04:26:27,020 INFO L225 Difference]: With dead ends: 36 [2018-11-10 04:26:27,020 INFO L226 Difference]: Without dead ends: 23 [2018-11-10 04:26:27,023 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2018-11-10 04:26:27,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-11-10 04:26:27,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2018-11-10 04:26:27,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-11-10 04:26:27,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 23 transitions. [2018-11-10 04:26:27,053 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 23 transitions. Word has length 12 [2018-11-10 04:26:27,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 04:26:27,053 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 23 transitions. [2018-11-10 04:26:27,053 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-10 04:26:27,053 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2018-11-10 04:26:27,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-10 04:26:27,053 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 04:26:27,054 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 04:26:27,054 INFO L424 AbstractCegarLoop]: === Iteration 2 === [r1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, r1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, r1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, r1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, r1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, r1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 04:26:27,054 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:26:27,054 INFO L82 PathProgramCache]: Analyzing trace with hash 284368601, now seen corresponding path program 1 times [2018-11-10 04:26:27,054 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 04:26:27,055 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 04:26:27,055 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:26:27,056 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:26:27,056 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:26:27,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 04:26:27,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 04:26:27,110 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 04:26:27,110 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-10 04:26:27,111 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-10 04:26:27,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-10 04:26:27,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-10 04:26:27,112 INFO L87 Difference]: Start difference. First operand 23 states and 23 transitions. Second operand 7 states. [2018-11-10 04:26:27,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 04:26:27,179 INFO L93 Difference]: Finished difference Result 37 states and 37 transitions. [2018-11-10 04:26:27,179 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-10 04:26:27,179 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2018-11-10 04:26:27,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 04:26:27,180 INFO L225 Difference]: With dead ends: 37 [2018-11-10 04:26:27,180 INFO L226 Difference]: Without dead ends: 35 [2018-11-10 04:26:27,180 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2018-11-10 04:26:27,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-11-10 04:26:27,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 29. [2018-11-10 04:26:27,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-11-10 04:26:27,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2018-11-10 04:26:27,186 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 13 [2018-11-10 04:26:27,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 04:26:27,186 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2018-11-10 04:26:27,186 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-10 04:26:27,186 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2018-11-10 04:26:27,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-10 04:26:27,186 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 04:26:27,186 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 04:26:27,187 INFO L424 AbstractCegarLoop]: === Iteration 3 === [r1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, r1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, r1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, r1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW, r1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, r1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 04:26:27,187 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:26:27,187 INFO L82 PathProgramCache]: Analyzing trace with hash 225492098, now seen corresponding path program 1 times [2018-11-10 04:26:27,187 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 04:26:27,187 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 04:26:27,188 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:26:27,188 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:26:27,188 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:26:27,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 04:26:27,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 04:26:27,210 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 04:26:27,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 04:26:27 BoogieIcfgContainer [2018-11-10 04:26:27,224 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 04:26:27,225 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 04:26:27,225 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 04:26:27,225 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 04:26:27,225 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 04:26:26" (3/4) ... [2018-11-10 04:26:27,227 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-10 04:26:27,254 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_b981d506-f5e7-4050-a408-5d1c47ddf715/bin-2019/uautomizer/witness.graphml [2018-11-10 04:26:27,254 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 04:26:27,254 INFO L168 Benchmark]: Toolchain (without parser) took 984.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 959.2 MB in the beginning and 1.1 GB in the end (delta: -98.8 MB). Peak memory consumption was 35.4 MB. Max. memory is 11.5 GB. [2018-11-10 04:26:27,255 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 04:26:27,255 INFO L168 Benchmark]: CACSL2BoogieTranslator took 134.68 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 04:26:27,256 INFO L168 Benchmark]: Boogie Preprocessor took 14.45 ms. Allocated memory is still 1.0 GB. Free memory is still 948.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 04:26:27,256 INFO L168 Benchmark]: RCFGBuilder took 178.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 948.5 MB in the beginning and 1.1 GB in the end (delta: -173.5 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2018-11-10 04:26:27,256 INFO L168 Benchmark]: TraceAbstraction took 624.24 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: 61.3 MB). Peak memory consumption was 61.3 MB. Max. memory is 11.5 GB. [2018-11-10 04:26:27,257 INFO L168 Benchmark]: Witness Printer took 29.12 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 04:26:27,259 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 134.68 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.45 ms. Allocated memory is still 1.0 GB. Free memory is still 948.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 178.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 948.5 MB in the beginning and 1.1 GB in the end (delta: -173.5 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 624.24 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: 61.3 MB). Peak memory consumption was 61.3 MB. Max. memory is 11.5 GB. * Witness Printer took 29.12 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 17]: integer overflow possible integer overflow possible We found a FailurePath: [L26] int ls = __VERIFIER_nondet_int(); [L27] COND TRUE ls >= 0 VAL [ls=2147483647] [L28] CALL rev(ls) VAL [\old(ls)=2147483647] [L22] CALL r1(ls,0) VAL [\old(a)=0, \old(ls)=2147483647] [L14] COND FALSE !(ls == 0) VAL [\old(a)=0, \old(ls)=2147483647, a=0, ls=2147483647] [L17] ls-1 VAL [\old(a)=0, \old(ls)=2147483647, a=0, ls=2147483647] [L17] ls+1 VAL [\old(a)=0, \old(ls)=2147483647, a=0, ls=2147483647] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 36 locations, 6 error locations. UNSAFE Result, 0.5s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 28 SDtfs, 59 SDslu, 120 SDs, 0 SdLazy, 154 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred 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: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 6 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 587 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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...