./Ultimate.py --spec ../../sv-benchmarks/c/NoOverflows.prp --file ../../sv-benchmarks/c/termination-crafted-lit/GulwaniJainKoskinen-PLDI2009-Fig1_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_a895a198-bd57-43b4-90f3-084b01881f15/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a895a198-bd57-43b4-90f3-084b01881f15/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a895a198-bd57-43b4-90f3-084b01881f15/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a895a198-bd57-43b4-90f3-084b01881f15/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/GulwaniJainKoskinen-PLDI2009-Fig1_false-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_a895a198-bd57-43b4-90f3-084b01881f15/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a895a198-bd57-43b4-90f3-084b01881f15/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 d7d414d68736ab19121f0afd030fc9c628e90ba4 .............................................................................................................................................................................................................................................................................................................. 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 [2018-10-27 05:41:52,828 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 05:41:52,829 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 05:41:52,837 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 05:41:52,837 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 05:41:52,838 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 05:41:52,839 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 05:41:52,841 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 05:41:52,842 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 05:41:52,842 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 05:41:52,844 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 05:41:52,844 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 05:41:52,844 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 05:41:52,845 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 05:41:52,846 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 05:41:52,847 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 05:41:52,847 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 05:41:52,848 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 05:41:52,850 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 05:41:52,851 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 05:41:52,852 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 05:41:52,853 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 05:41:52,854 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 05:41:52,854 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 05:41:52,855 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 05:41:52,856 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 05:41:52,856 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 05:41:52,857 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 05:41:52,857 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 05:41:52,858 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 05:41:52,858 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 05:41:52,858 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 05:41:52,859 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 05:41:52,859 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 05:41:52,860 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 05:41:52,861 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 05:41:52,861 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a895a198-bd57-43b4-90f3-084b01881f15/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2018-10-27 05:41:52,870 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 05:41:52,871 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 05:41:52,871 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 05:41:52,871 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-27 05:41:52,872 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-27 05:41:52,872 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-27 05:41:52,872 INFO L133 SettingsManager]: * Use SBE=true [2018-10-27 05:41:52,872 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 05:41:52,873 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-10-27 05:41:52,873 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 05:41:52,873 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 05:41:52,873 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 05:41:52,873 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 05:41:52,873 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 05:41:52,873 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-10-27 05:41:52,873 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 05:41:52,874 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 05:41:52,874 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 05:41:52,874 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 05:41:52,874 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 05:41:52,874 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 05:41:52,874 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 05:41:52,874 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 05:41:52,874 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 05:41:52,875 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 05:41:52,875 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-27 05:41:52,875 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 05:41:52,875 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 05:41:52,875 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_a895a198-bd57-43b4-90f3-084b01881f15/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 -> d7d414d68736ab19121f0afd030fc9c628e90ba4 [2018-10-27 05:41:52,910 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 05:41:52,922 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 05:41:52,927 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 05:41:52,928 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 05:41:52,928 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 05:41:52,929 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a895a198-bd57-43b4-90f3-084b01881f15/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/GulwaniJainKoskinen-PLDI2009-Fig1_false-no-overflow.c [2018-10-27 05:41:52,970 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a895a198-bd57-43b4-90f3-084b01881f15/bin-2019/uautomizer/data/407b097b3/7147898358d245a8aa61fa0b38481e8a/FLAG757a5fe21 [2018-10-27 05:41:53,372 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 05:41:53,373 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a895a198-bd57-43b4-90f3-084b01881f15/sv-benchmarks/c/termination-crafted-lit/GulwaniJainKoskinen-PLDI2009-Fig1_false-no-overflow.c [2018-10-27 05:41:53,377 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a895a198-bd57-43b4-90f3-084b01881f15/bin-2019/uautomizer/data/407b097b3/7147898358d245a8aa61fa0b38481e8a/FLAG757a5fe21 [2018-10-27 05:41:53,388 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a895a198-bd57-43b4-90f3-084b01881f15/bin-2019/uautomizer/data/407b097b3/7147898358d245a8aa61fa0b38481e8a [2018-10-27 05:41:53,393 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 05:41:53,394 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-27 05:41:53,394 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 05:41:53,394 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 05:41:53,398 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 05:41:53,398 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 05:41:53" (1/1) ... [2018-10-27 05:41:53,404 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4087c74b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:41:53, skipping insertion in model container [2018-10-27 05:41:53,405 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 05:41:53" (1/1) ... [2018-10-27 05:41:53,414 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 05:41:53,429 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 05:41:53,544 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 05:41:53,547 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 05:41:53,559 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 05:41:53,569 INFO L193 MainTranslator]: Completed translation [2018-10-27 05:41:53,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:41:53 WrapperNode [2018-10-27 05:41:53,570 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 05:41:53,570 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 05:41:53,570 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 05:41:53,571 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 05:41:53,582 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:41:53" (1/1) ... [2018-10-27 05:41:53,582 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:41:53" (1/1) ... [2018-10-27 05:41:53,588 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:41:53" (1/1) ... [2018-10-27 05:41:53,588 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:41:53" (1/1) ... [2018-10-27 05:41:53,591 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:41:53" (1/1) ... [2018-10-27 05:41:53,595 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:41:53" (1/1) ... [2018-10-27 05:41:53,596 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:41:53" (1/1) ... [2018-10-27 05:41:53,597 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 05:41:53,598 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 05:41:53,598 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 05:41:53,598 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 05:41:53,599 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:41:53" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a895a198-bd57-43b4-90f3-084b01881f15/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 [2018-10-27 05:41:53,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 05:41:53,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 05:41:53,656 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 05:41:53,656 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-10-27 05:41:53,656 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 05:41:53,656 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 05:41:53,656 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 05:41:54,029 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 05:41:54,029 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 05:41:54 BoogieIcfgContainer [2018-10-27 05:41:54,029 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 05:41:54,030 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 05:41:54,030 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 05:41:54,033 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 05:41:54,033 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 05:41:53" (1/3) ... [2018-10-27 05:41:54,034 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66845056 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 05:41:54, skipping insertion in model container [2018-10-27 05:41:54,034 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:41:53" (2/3) ... [2018-10-27 05:41:54,034 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66845056 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 05:41:54, skipping insertion in model container [2018-10-27 05:41:54,034 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 05:41:54" (3/3) ... [2018-10-27 05:41:54,037 INFO L112 eAbstractionObserver]: Analyzing ICFG GulwaniJainKoskinen-PLDI2009-Fig1_false-no-overflow.c [2018-10-27 05:41:54,043 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 05:41:54,049 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-10-27 05:41:54,062 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2018-10-27 05:41:54,083 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-27 05:41:54,084 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 05:41:54,084 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 05:41:54,084 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 05:41:54,084 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 05:41:54,084 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 05:41:54,084 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 05:41:54,084 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 05:41:54,084 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 05:41:54,099 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2018-10-27 05:41:54,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-10-27 05:41:54,103 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 05:41:54,104 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-10-27 05:41:54,106 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-10-27 05:41:54,111 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:41:54,111 INFO L82 PathProgramCache]: Analyzing trace with hash 551603218, now seen corresponding path program 1 times [2018-10-27 05:41:54,113 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 05:41:54,113 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 05:41:54,156 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:41:54,156 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:41:54,156 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:41:54,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:41:54,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:41:54,349 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 05:41:54,349 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-27 05:41:54,352 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-27 05:41:54,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-27 05:41:54,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-27 05:41:54,364 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 4 states. [2018-10-27 05:41:54,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 05:41:54,443 INFO L93 Difference]: Finished difference Result 32 states and 35 transitions. [2018-10-27 05:41:54,445 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-27 05:41:54,446 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2018-10-27 05:41:54,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 05:41:54,452 INFO L225 Difference]: With dead ends: 32 [2018-10-27 05:41:54,452 INFO L226 Difference]: Without dead ends: 18 [2018-10-27 05:41:54,455 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-27 05:41:54,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-10-27 05:41:54,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-10-27 05:41:54,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-10-27 05:41:54,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2018-10-27 05:41:54,480 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 7 [2018-10-27 05:41:54,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 05:41:54,480 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2018-10-27 05:41:54,480 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-27 05:41:54,480 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2018-10-27 05:41:54,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-10-27 05:41:54,481 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 05:41:54,481 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 05:41:54,481 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-10-27 05:41:54,482 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:41:54,482 INFO L82 PathProgramCache]: Analyzing trace with hash -80169385, now seen corresponding path program 1 times [2018-10-27 05:41:54,482 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 05:41:54,482 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 05:41:54,484 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:41:54,485 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:41:54,485 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:41:54,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:41:54,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:41:54,514 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 05:41:54,514 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-27 05:41:54,515 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-27 05:41:54,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-27 05:41:54,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 05:41:54,516 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand 3 states. [2018-10-27 05:41:54,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 05:41:54,541 INFO L93 Difference]: Finished difference Result 18 states and 20 transitions. [2018-10-27 05:41:54,541 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-27 05:41:54,541 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-10-27 05:41:54,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 05:41:54,542 INFO L225 Difference]: With dead ends: 18 [2018-10-27 05:41:54,542 INFO L226 Difference]: Without dead ends: 17 [2018-10-27 05:41:54,542 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 05:41:54,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-10-27 05:41:54,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-10-27 05:41:54,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-10-27 05:41:54,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2018-10-27 05:41:54,545 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 8 [2018-10-27 05:41:54,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 05:41:54,545 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2018-10-27 05:41:54,545 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-27 05:41:54,546 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2018-10-27 05:41:54,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-10-27 05:41:54,546 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 05:41:54,546 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 05:41:54,546 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-10-27 05:41:54,546 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:41:54,547 INFO L82 PathProgramCache]: Analyzing trace with hash -1458677341, now seen corresponding path program 1 times [2018-10-27 05:41:54,547 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 05:41:54,547 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 05:41:54,548 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:41:54,548 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:41:54,548 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:41:54,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 05:41:54,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 05:41:54,578 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-10-27 05:41:54,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 05:41:54 BoogieIcfgContainer [2018-10-27 05:41:54,597 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 05:41:54,597 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-27 05:41:54,597 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-27 05:41:54,598 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-27 05:41:54,598 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 05:41:54" (3/4) ... [2018-10-27 05:41:54,601 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-10-27 05:41:54,631 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_a895a198-bd57-43b4-90f3-084b01881f15/bin-2019/uautomizer/witness.graphml [2018-10-27 05:41:54,632 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-27 05:41:54,632 INFO L168 Benchmark]: Toolchain (without parser) took 1239.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 196.6 MB). Free memory was 954.4 MB in the beginning and 1.1 GB in the end (delta: -193.1 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-10-27 05:41:54,634 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 05:41:54,634 INFO L168 Benchmark]: CACSL2BoogieTranslator took 175.65 ms. Allocated memory is still 1.0 GB. Free memory was 954.4 MB in the beginning and 943.7 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. [2018-10-27 05:41:54,634 INFO L168 Benchmark]: Boogie Preprocessor took 27.07 ms. Allocated memory is still 1.0 GB. Free memory is still 943.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 05:41:54,635 INFO L168 Benchmark]: RCFGBuilder took 431.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 196.6 MB). Free memory was 943.7 MB in the beginning and 1.2 GB in the end (delta: -239.9 MB). Peak memory consumption was 26.7 MB. Max. memory is 11.5 GB. [2018-10-27 05:41:54,636 INFO L168 Benchmark]: TraceAbstraction took 567.02 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 32.5 MB). Peak memory consumption was 32.5 MB. Max. memory is 11.5 GB. [2018-10-27 05:41:54,637 INFO L168 Benchmark]: Witness Printer took 34.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-10-27 05:41:54,640 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 175.65 ms. Allocated memory is still 1.0 GB. Free memory was 954.4 MB in the beginning and 943.7 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.07 ms. Allocated memory is still 1.0 GB. Free memory is still 943.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 431.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 196.6 MB). Free memory was 943.7 MB in the beginning and 1.2 GB in the end (delta: -239.9 MB). Peak memory consumption was 26.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 567.02 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 32.5 MB). Peak memory consumption was 32.5 MB. Max. memory is 11.5 GB. * Witness Printer took 34.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 25]: integer overflow possible integer overflow possible We found a FailurePath: [L16] int id, maxId, tmp; [L17] id = __VERIFIER_nondet_int() [L18] maxId = __VERIFIER_nondet_int() [L21] COND TRUE 0 <= id && id < maxId VAL [id=2147483646, maxId=2147483647] [L22] EXPR id+1 [L22] tmp = id+1 VAL [id=2147483646, maxId=2147483647, tmp=2147483647] [L23] tmp!=id && __VERIFIER_nondet_int() != 0 [L23] tmp!=id && __VERIFIER_nondet_int() != 0 VAL [__VERIFIER_nondet_int()=1, id=2147483646, maxId=2147483647, tmp=2147483647, tmp!=id && __VERIFIER_nondet_int() != 0=1] [L23] COND TRUE tmp!=id && __VERIFIER_nondet_int() != 0 [L24] COND TRUE tmp <= maxId VAL [id=2147483646, maxId=2147483647, tmp=2147483647] [L25] tmp + 1 VAL [id=2147483646, maxId=2147483647, tmp=2147483647] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 24 locations, 4 error locations. UNSAFE Result, 0.5s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 37 SDtfs, 48 SDslu, 20 SDs, 0 SdLazy, 14 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 137 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...