./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/array-tiling/skippedu_false-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_5848d3c5-bcea-4632-97ed-b4757544bb15/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_5848d3c5-bcea-4632-97ed-b4757544bb15/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_5848d3c5-bcea-4632-97ed-b4757544bb15/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_5848d3c5-bcea-4632-97ed-b4757544bb15/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-tiling/skippedu_false-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_5848d3c5-bcea-4632-97ed-b4757544bb15/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_5848d3c5-bcea-4632-97ed-b4757544bb15/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 69a8cdfb90da21c880e2ea8c68ae8d9efb957756 ............................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 06:08:41,029 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 06:08:41,030 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 06:08:41,038 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 06:08:41,038 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 06:08:41,039 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 06:08:41,040 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 06:08:41,041 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 06:08:41,042 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 06:08:41,042 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 06:08:41,043 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 06:08:41,043 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 06:08:41,044 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 06:08:41,045 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 06:08:41,045 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 06:08:41,046 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 06:08:41,046 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 06:08:41,048 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 06:08:41,049 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 06:08:41,050 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 06:08:41,051 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 06:08:41,051 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 06:08:41,053 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 06:08:41,053 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 06:08:41,053 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 06:08:41,054 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 06:08:41,054 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 06:08:41,055 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 06:08:41,056 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 06:08:41,056 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 06:08:41,056 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 06:08:41,057 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 06:08:41,057 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 06:08:41,057 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 06:08:41,058 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 06:08:41,058 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 06:08:41,059 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_5848d3c5-bcea-4632-97ed-b4757544bb15/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-10 06:08:41,068 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 06:08:41,068 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 06:08:41,069 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 06:08:41,069 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 06:08:41,069 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 06:08:41,069 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 06:08:41,069 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 06:08:41,070 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 06:08:41,070 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 06:08:41,070 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 06:08:41,070 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 06:08:41,070 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 06:08:41,070 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 06:08:41,070 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 06:08:41,070 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 06:08:41,071 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 06:08:41,071 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 06:08:41,071 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 06:08:41,071 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 06:08:41,071 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 06:08:41,071 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 06:08:41,071 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 06:08:41,072 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 06:08:41,072 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 06:08:41,072 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 06:08:41,072 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 06:08:41,072 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-10 06:08:41,072 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 06:08:41,072 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 06:08:41,073 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_5848d3c5-bcea-4632-97ed-b4757544bb15/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 ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 69a8cdfb90da21c880e2ea8c68ae8d9efb957756 [2018-11-10 06:08:41,092 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 06:08:41,100 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 06:08:41,102 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 06:08:41,102 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 06:08:41,103 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 06:08:41,103 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_5848d3c5-bcea-4632-97ed-b4757544bb15/bin-2019/uautomizer/../../sv-benchmarks/c/array-tiling/skippedu_false-unreach-call.i [2018-11-10 06:08:41,137 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5848d3c5-bcea-4632-97ed-b4757544bb15/bin-2019/uautomizer/data/6e53405dc/73b6728287a34bf8aa9c66c14e81956a/FLAGaae7b30ac [2018-11-10 06:08:41,521 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 06:08:41,521 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_5848d3c5-bcea-4632-97ed-b4757544bb15/sv-benchmarks/c/array-tiling/skippedu_false-unreach-call.i [2018-11-10 06:08:41,525 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5848d3c5-bcea-4632-97ed-b4757544bb15/bin-2019/uautomizer/data/6e53405dc/73b6728287a34bf8aa9c66c14e81956a/FLAGaae7b30ac [2018-11-10 06:08:41,535 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_5848d3c5-bcea-4632-97ed-b4757544bb15/bin-2019/uautomizer/data/6e53405dc/73b6728287a34bf8aa9c66c14e81956a [2018-11-10 06:08:41,537 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 06:08:41,538 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-10 06:08:41,539 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 06:08:41,539 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 06:08:41,541 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 06:08:41,541 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 06:08:41" (1/1) ... [2018-11-10 06:08:41,543 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a7e98ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:08:41, skipping insertion in model container [2018-11-10 06:08:41,543 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 06:08:41" (1/1) ... [2018-11-10 06:08:41,549 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 06:08:41,561 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 06:08:41,659 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 06:08:41,661 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 06:08:41,674 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 06:08:41,686 INFO L193 MainTranslator]: Completed translation [2018-11-10 06:08:41,687 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:08:41 WrapperNode [2018-11-10 06:08:41,687 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 06:08:41,687 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 06:08:41,687 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 06:08:41,687 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 06:08:41,698 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:08:41" (1/1) ... [2018-11-10 06:08:41,698 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:08:41" (1/1) ... [2018-11-10 06:08:41,705 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:08:41" (1/1) ... [2018-11-10 06:08:41,705 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:08:41" (1/1) ... [2018-11-10 06:08:41,710 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:08:41" (1/1) ... [2018-11-10 06:08:41,714 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:08:41" (1/1) ... [2018-11-10 06:08:41,715 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:08:41" (1/1) ... [2018-11-10 06:08:41,716 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 06:08:41,717 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 06:08:41,717 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 06:08:41,717 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 06:08:41,718 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:08:41" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5848d3c5-bcea-4632-97ed-b4757544bb15/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 06:08:41,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 06:08:41,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 06:08:41,794 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-10 06:08:41,794 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 06:08:41,794 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-10 06:08:41,794 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-11-10 06:08:41,794 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-10 06:08:41,794 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-10 06:08:41,794 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 06:08:41,794 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-10 06:08:41,795 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-10 06:08:41,795 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-10 06:08:41,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-10 06:08:41,795 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 06:08:41,795 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 06:08:41,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-11-10 06:08:41,935 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 06:08:41,936 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 06:08:41 BoogieIcfgContainer [2018-11-10 06:08:41,936 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 06:08:41,936 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 06:08:41,936 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 06:08:41,939 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 06:08:41,939 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 06:08:41" (1/3) ... [2018-11-10 06:08:41,940 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b534651 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 06:08:41, skipping insertion in model container [2018-11-10 06:08:41,940 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:08:41" (2/3) ... [2018-11-10 06:08:41,940 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b534651 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 06:08:41, skipping insertion in model container [2018-11-10 06:08:41,940 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 06:08:41" (3/3) ... [2018-11-10 06:08:41,942 INFO L112 eAbstractionObserver]: Analyzing ICFG skippedu_false-unreach-call.i [2018-11-10 06:08:41,950 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 06:08:41,956 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 06:08:41,970 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 06:08:41,996 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 06:08:41,996 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 06:08:41,996 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 06:08:41,996 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 06:08:41,997 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 06:08:41,997 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 06:08:41,997 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 06:08:41,997 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 06:08:41,997 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 06:08:42,011 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2018-11-10 06:08:42,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-10 06:08:42,016 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 06:08:42,017 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 06:08:42,019 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 06:08:42,023 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:08:42,024 INFO L82 PathProgramCache]: Analyzing trace with hash 8567144, now seen corresponding path program 1 times [2018-11-10 06:08:42,025 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 06:08:42,025 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 06:08:42,065 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:08:42,065 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 06:08:42,065 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:08:42,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:08:42,122 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 06:08:42,124 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 06:08:42,124 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 06:08:42,126 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-10 06:08:42,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-10 06:08:42,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 06:08:42,136 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 2 states. [2018-11-10 06:08:42,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 06:08:42,153 INFO L93 Difference]: Finished difference Result 60 states and 71 transitions. [2018-11-10 06:08:42,153 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 06:08:42,154 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-11-10 06:08:42,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 06:08:42,159 INFO L225 Difference]: With dead ends: 60 [2018-11-10 06:08:42,159 INFO L226 Difference]: Without dead ends: 31 [2018-11-10 06:08:42,161 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 06:08:42,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-11-10 06:08:42,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2018-11-10 06:08:42,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-11-10 06:08:42,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 34 transitions. [2018-11-10 06:08:42,182 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 34 transitions. Word has length 18 [2018-11-10 06:08:42,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 06:08:42,182 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 34 transitions. [2018-11-10 06:08:42,182 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-10 06:08:42,182 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 34 transitions. [2018-11-10 06:08:42,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-10 06:08:42,183 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 06:08:42,183 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 06:08:42,183 INFO L424 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 06:08:42,183 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:08:42,184 INFO L82 PathProgramCache]: Analyzing trace with hash 728969334, now seen corresponding path program 1 times [2018-11-10 06:08:42,184 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 06:08:42,184 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 06:08:42,185 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:08:42,185 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 06:08:42,185 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:08:42,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 06:08:42,288 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 06:08:42,289 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 06:08:42,289 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-10 06:08:42,290 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 06:08:42,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 06:08:42,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-10 06:08:42,290 INFO L87 Difference]: Start difference. First operand 31 states and 34 transitions. Second operand 4 states. [2018-11-10 06:08:42,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 06:08:42,367 INFO L93 Difference]: Finished difference Result 53 states and 59 transitions. [2018-11-10 06:08:42,368 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-10 06:08:42,368 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2018-11-10 06:08:42,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 06:08:42,369 INFO L225 Difference]: With dead ends: 53 [2018-11-10 06:08:42,369 INFO L226 Difference]: Without dead ends: 40 [2018-11-10 06:08:42,370 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-10 06:08:42,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-11-10 06:08:42,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 33. [2018-11-10 06:08:42,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-11-10 06:08:42,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 36 transitions. [2018-11-10 06:08:42,374 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 36 transitions. Word has length 19 [2018-11-10 06:08:42,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 06:08:42,374 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 36 transitions. [2018-11-10 06:08:42,374 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 06:08:42,374 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 36 transitions. [2018-11-10 06:08:42,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-10 06:08:42,375 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 06:08:42,375 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 06:08:42,375 INFO L424 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 06:08:42,375 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 06:08:42,375 INFO L82 PathProgramCache]: Analyzing trace with hash 257886520, now seen corresponding path program 1 times [2018-11-10 06:08:42,375 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 06:08:42,376 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 06:08:42,376 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:08:42,376 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 06:08:42,376 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 06:08:42,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 06:08:42,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 06:08:42,432 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 06:08:42,450 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 06:08:42 BoogieIcfgContainer [2018-11-10 06:08:42,450 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 06:08:42,451 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 06:08:42,451 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 06:08:42,451 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 06:08:42,451 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 06:08:41" (3/4) ... [2018-11-10 06:08:42,453 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-10 06:08:42,481 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_5848d3c5-bcea-4632-97ed-b4757544bb15/bin-2019/uautomizer/witness.graphml [2018-11-10 06:08:42,481 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 06:08:42,482 INFO L168 Benchmark]: Toolchain (without parser) took 944.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.8 MB). Free memory was 954.8 MB in the beginning and 1.1 GB in the end (delta: -135.7 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. [2018-11-10 06:08:42,483 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 06:08:42,483 INFO L168 Benchmark]: CACSL2BoogieTranslator took 148.10 ms. Allocated memory is still 1.0 GB. Free memory was 954.8 MB in the beginning and 944.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 06:08:42,484 INFO L168 Benchmark]: Boogie Preprocessor took 29.45 ms. Allocated memory is still 1.0 GB. Free memory was 944.1 MB in the beginning and 941.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 06:08:42,484 INFO L168 Benchmark]: RCFGBuilder took 219.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.8 MB). Free memory was 941.4 MB in the beginning and 1.1 GB in the end (delta: -195.5 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. [2018-11-10 06:08:42,484 INFO L168 Benchmark]: TraceAbstraction took 514.19 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: 46.4 MB). Peak memory consumption was 46.4 MB. Max. memory is 11.5 GB. [2018-11-10 06:08:42,485 INFO L168 Benchmark]: Witness Printer took 30.89 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. [2018-11-10 06:08:42,486 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 148.10 ms. Allocated memory is still 1.0 GB. Free memory was 954.8 MB in the beginning and 944.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 29.45 ms. Allocated memory is still 1.0 GB. Free memory was 944.1 MB in the beginning and 941.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 219.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.8 MB). Free memory was 941.4 MB in the beginning and 1.1 GB in the end (delta: -195.5 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 514.19 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: 46.4 MB). Peak memory consumption was 46.4 MB. Max. memory is 11.5 GB. * Witness Printer took 30.89 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: 5]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L8] int SIZE; VAL [\old(SIZE)=10, SIZE=0] [L12] SIZE = __VERIFIER_nondet_int() [L13] COND TRUE SIZE > 1 [L15] int i; VAL [\old(SIZE)=0, SIZE=2] [L16] FCALL int a[SIZE]; VAL [\old(SIZE)=0, a={11:0}, SIZE=2] [L18] COND FALSE !(SIZE % 2 != 0) [L21] i = 1 VAL [\old(SIZE)=0, a={11:0}, i=1, SIZE=2] [L21] COND TRUE i <= SIZE/2 VAL [\old(SIZE)=0, a={11:0}, i=1, SIZE=2] [L23] EXPR, FCALL a[2*i-2] VAL [\old(SIZE)=0, a={11:0}, a[2*i-2]=1, i=1, SIZE=2] [L23] COND FALSE !(a[2*i-2] > i) [L27] EXPR, FCALL a[2*i-1] VAL [\old(SIZE)=0, a={11:0}, a[2*i-1]=0, i=1, SIZE=2] [L27] COND FALSE !(a[2*i-1] > i) [L21] i++ VAL [\old(SIZE)=0, a={11:0}, i=2, SIZE=2] [L21] COND FALSE !(i <= SIZE/2) VAL [\old(SIZE)=0, a={11:0}, i=2, SIZE=2] [L33] i = 0 VAL [\old(SIZE)=0, a={11:0}, i=0, SIZE=2] [L33] COND TRUE i < SIZE VAL [\old(SIZE)=0, a={11:0}, i=0, SIZE=2] [L35] EXPR, FCALL a[i] VAL [\old(SIZE)=0, a={11:0}, a[i]=1, i=0, SIZE=2] [L35] CALL __VERIFIER_assert( a[i] <= i ) VAL [\old(cond)=0, \old(SIZE)=0, SIZE=2] [L5] COND TRUE !(cond) VAL [\old(cond)=0, \old(SIZE)=0, cond=0, SIZE=2] [L5] __VERIFIER_error() VAL [\old(cond)=0, \old(SIZE)=0, cond=0, SIZE=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 40 locations, 1 error locations. UNSAFE Result, 0.4s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 65 SDtfs, 45 SDslu, 12 SDs, 0 SdLazy, 35 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred 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, 7 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 63 NumberOfCodeBlocks, 63 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 35 ConstructedInterpolants, 0 QuantifiedInterpolants, 1153 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...