./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-crafted/simple_array_index_value_true-unreach-call4_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0cd3be1d Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_f412a1f2-11b5-40df-87c7-6611c2cdc6e0/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_f412a1f2-11b5-40df-87c7-6611c2cdc6e0/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_f412a1f2-11b5-40df-87c7-6611c2cdc6e0/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_f412a1f2-11b5-40df-87c7-6611c2cdc6e0/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-crafted/simple_array_index_value_true-unreach-call4_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_f412a1f2-11b5-40df-87c7-6611c2cdc6e0/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_f412a1f2-11b5-40df-87c7-6611c2cdc6e0/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 8538ad1ae962a1ba831f755fb5c2de9d27f82db5 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-0cd3be1 [2018-11-28 12:21:27,005 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 12:21:27,007 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 12:21:27,016 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 12:21:27,016 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 12:21:27,017 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 12:21:27,018 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 12:21:27,020 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 12:21:27,021 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 12:21:27,022 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 12:21:27,023 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 12:21:27,023 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 12:21:27,024 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 12:21:27,025 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 12:21:27,026 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 12:21:27,026 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 12:21:27,028 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 12:21:27,029 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 12:21:27,031 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 12:21:27,032 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 12:21:27,033 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 12:21:27,034 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 12:21:27,036 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 12:21:27,036 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 12:21:27,036 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 12:21:27,037 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 12:21:27,038 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 12:21:27,038 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 12:21:27,039 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 12:21:27,040 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 12:21:27,040 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 12:21:27,041 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 12:21:27,041 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 12:21:27,041 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 12:21:27,042 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 12:21:27,042 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 12:21:27,044 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_f412a1f2-11b5-40df-87c7-6611c2cdc6e0/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 12:21:27,054 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 12:21:27,054 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 12:21:27,055 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 12:21:27,055 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 12:21:27,056 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 12:21:27,056 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 12:21:27,056 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 12:21:27,056 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 12:21:27,056 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 12:21:27,056 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 12:21:27,057 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 12:21:27,057 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 12:21:27,057 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 12:21:27,057 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 12:21:27,057 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 12:21:27,057 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 12:21:27,057 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 12:21:27,057 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 12:21:27,057 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 12:21:27,058 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 12:21:27,058 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 12:21:27,058 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 12:21:27,058 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 12:21:27,058 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 12:21:27,060 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 12:21:27,060 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 12:21:27,060 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 12:21:27,060 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 12:21:27,060 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 12:21:27,061 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 12:21:27,061 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_f412a1f2-11b5-40df-87c7-6611c2cdc6e0/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 -> 8538ad1ae962a1ba831f755fb5c2de9d27f82db5 [2018-11-28 12:21:27,088 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 12:21:27,098 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 12:21:27,101 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 12:21:27,102 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 12:21:27,102 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 12:21:27,103 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_f412a1f2-11b5-40df-87c7-6611c2cdc6e0/bin-2019/uautomizer/../../sv-benchmarks/c/loop-crafted/simple_array_index_value_true-unreach-call4_true-termination.i [2018-11-28 12:21:27,147 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f412a1f2-11b5-40df-87c7-6611c2cdc6e0/bin-2019/uautomizer/data/4cad095af/3dca59820642401ea924898a9a17d087/FLAGadcaa3ff8 [2018-11-28 12:21:27,490 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 12:21:27,490 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_f412a1f2-11b5-40df-87c7-6611c2cdc6e0/sv-benchmarks/c/loop-crafted/simple_array_index_value_true-unreach-call4_true-termination.i [2018-11-28 12:21:27,495 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f412a1f2-11b5-40df-87c7-6611c2cdc6e0/bin-2019/uautomizer/data/4cad095af/3dca59820642401ea924898a9a17d087/FLAGadcaa3ff8 [2018-11-28 12:21:27,512 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_f412a1f2-11b5-40df-87c7-6611c2cdc6e0/bin-2019/uautomizer/data/4cad095af/3dca59820642401ea924898a9a17d087 [2018-11-28 12:21:27,514 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 12:21:27,516 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 12:21:27,516 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 12:21:27,517 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 12:21:27,521 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 12:21:27,522 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:21:27" (1/1) ... [2018-11-28 12:21:27,525 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5274901a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:21:27, skipping insertion in model container [2018-11-28 12:21:27,525 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:21:27" (1/1) ... [2018-11-28 12:21:27,532 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 12:21:27,547 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 12:21:27,656 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:21:27,660 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 12:21:27,674 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:21:27,688 INFO L195 MainTranslator]: Completed translation [2018-11-28 12:21:27,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:21:27 WrapperNode [2018-11-28 12:21:27,688 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 12:21:27,689 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 12:21:27,689 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 12:21:27,689 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 12:21:27,695 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:21:27" (1/1) ... [2018-11-28 12:21:27,701 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:21:27" (1/1) ... [2018-11-28 12:21:27,708 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 12:21:27,708 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 12:21:27,709 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 12:21:27,709 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 12:21:27,761 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:21:27" (1/1) ... [2018-11-28 12:21:27,761 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:21:27" (1/1) ... [2018-11-28 12:21:27,763 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:21:27" (1/1) ... [2018-11-28 12:21:27,763 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:21:27" (1/1) ... [2018-11-28 12:21:27,770 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:21:27" (1/1) ... [2018-11-28 12:21:27,775 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:21:27" (1/1) ... [2018-11-28 12:21:27,777 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:21:27" (1/1) ... [2018-11-28 12:21:27,778 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 12:21:27,779 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 12:21:27,779 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 12:21:27,779 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 12:21:27,780 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:21:27" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f412a1f2-11b5-40df-87c7-6611c2cdc6e0/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 [2018-11-28 12:21:27,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 12:21:27,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 12:21:27,825 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 12:21:27,825 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 12:21:27,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 12:21:27,825 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-28 12:21:27,825 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 12:21:27,825 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 12:21:27,826 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-28 12:21:27,826 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-28 12:21:27,826 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 12:21:27,993 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 12:21:27,993 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-11-28 12:21:27,994 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:21:27 BoogieIcfgContainer [2018-11-28 12:21:27,994 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 12:21:27,994 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 12:21:27,994 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 12:21:27,998 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 12:21:27,998 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 12:21:27" (1/3) ... [2018-11-28 12:21:27,999 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d756dde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:21:27, skipping insertion in model container [2018-11-28 12:21:27,999 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:21:27" (2/3) ... [2018-11-28 12:21:28,000 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d756dde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:21:27, skipping insertion in model container [2018-11-28 12:21:28,000 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:21:27" (3/3) ... [2018-11-28 12:21:28,002 INFO L112 eAbstractionObserver]: Analyzing ICFG simple_array_index_value_true-unreach-call4_true-termination.i [2018-11-28 12:21:28,012 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 12:21:28,020 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 12:21:28,037 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 12:21:28,066 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 12:21:28,067 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 12:21:28,067 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 12:21:28,067 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 12:21:28,067 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 12:21:28,068 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 12:21:28,068 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 12:21:28,068 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 12:21:28,068 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 12:21:28,087 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2018-11-28 12:21:28,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-28 12:21:28,093 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:21:28,094 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:21:28,096 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:21:28,102 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:21:28,102 INFO L82 PathProgramCache]: Analyzing trace with hash -1079158542, now seen corresponding path program 1 times [2018-11-28 12:21:28,104 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:21:28,105 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:21:28,148 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:21:28,149 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:21:28,149 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:21:28,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:21:28,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:21:28,301 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:21:28,301 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-28 12:21:28,304 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 12:21:28,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 12:21:28,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 12:21:28,315 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 5 states. [2018-11-28 12:21:28,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:21:28,431 INFO L93 Difference]: Finished difference Result 56 states and 79 transitions. [2018-11-28 12:21:28,432 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 12:21:28,433 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2018-11-28 12:21:28,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:21:28,443 INFO L225 Difference]: With dead ends: 56 [2018-11-28 12:21:28,443 INFO L226 Difference]: Without dead ends: 30 [2018-11-28 12:21:28,446 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-28 12:21:28,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2018-11-28 12:21:28,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 25. [2018-11-28 12:21:28,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-11-28 12:21:28,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2018-11-28 12:21:28,481 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 11 [2018-11-28 12:21:28,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:21:28,481 INFO L480 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2018-11-28 12:21:28,481 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 12:21:28,481 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2018-11-28 12:21:28,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-28 12:21:28,483 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:21:28,483 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:21:28,483 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:21:28,484 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:21:28,484 INFO L82 PathProgramCache]: Analyzing trace with hash -476045897, now seen corresponding path program 1 times [2018-11-28 12:21:28,484 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:21:28,484 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:21:28,486 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:21:28,486 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:21:28,486 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:21:28,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:21:28,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:21:28,540 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:21:28,540 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 12:21:28,541 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 12:21:28,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 12:21:28,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:21:28,542 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand 3 states. [2018-11-28 12:21:28,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:21:28,554 INFO L93 Difference]: Finished difference Result 36 states and 39 transitions. [2018-11-28 12:21:28,555 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 12:21:28,555 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2018-11-28 12:21:28,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:21:28,556 INFO L225 Difference]: With dead ends: 36 [2018-11-28 12:21:28,556 INFO L226 Difference]: Without dead ends: 26 [2018-11-28 12:21:28,556 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:21:28,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2018-11-28 12:21:28,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 25. [2018-11-28 12:21:28,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-11-28 12:21:28,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2018-11-28 12:21:28,561 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 13 [2018-11-28 12:21:28,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:21:28,561 INFO L480 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions. [2018-11-28 12:21:28,561 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 12:21:28,561 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2018-11-28 12:21:28,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-28 12:21:28,562 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:21:28,562 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:21:28,562 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:21:28,562 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:21:28,562 INFO L82 PathProgramCache]: Analyzing trace with hash 1393486425, now seen corresponding path program 1 times [2018-11-28 12:21:28,563 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:21:28,563 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:21:28,563 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:21:28,563 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:21:28,564 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:21:28,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:21:28,701 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:21:28,702 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:21:28,702 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-28 12:21:28,702 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-28 12:21:28,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-28 12:21:28,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-11-28 12:21:28,703 INFO L87 Difference]: Start difference. First operand 25 states and 27 transitions. Second operand 8 states. [2018-11-28 12:21:28,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:21:28,839 INFO L93 Difference]: Finished difference Result 38 states and 41 transitions. [2018-11-28 12:21:28,839 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-28 12:21:28,840 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 18 [2018-11-28 12:21:28,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:21:28,840 INFO L225 Difference]: With dead ends: 38 [2018-11-28 12:21:28,840 INFO L226 Difference]: Without dead ends: 36 [2018-11-28 12:21:28,841 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2018-11-28 12:21:28,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-11-28 12:21:28,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 24. [2018-11-28 12:21:28,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-11-28 12:21:28,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2018-11-28 12:21:28,846 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 18 [2018-11-28 12:21:28,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:21:28,847 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2018-11-28 12:21:28,847 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-28 12:21:28,847 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2018-11-28 12:21:28,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-28 12:21:28,847 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:21:28,848 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:21:28,848 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:21:28,848 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:21:28,848 INFO L82 PathProgramCache]: Analyzing trace with hash 618852702, now seen corresponding path program 1 times [2018-11-28 12:21:28,849 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:21:28,849 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:21:28,850 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:21:28,850 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:21:28,850 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:21:28,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:21:29,275 WARN L180 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 71 [2018-11-28 12:21:29,349 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:21:29,349 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 12:21:29,349 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f412a1f2-11b5-40df-87c7-6611c2cdc6e0/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 12:21:29,367 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:21:29,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:21:29,427 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:21:49,939 WARN L180 SmtUtils]: Spent 18.15 s on a formula simplification. DAG size of input: 59 DAG size of output: 36 [2018-11-28 12:21:49,999 WARN L307 Elim1Store]: Array PQE input equivalent to false [2018-11-28 12:21:49,999 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 12:21:54,293 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 50 [2018-11-28 12:21:54,299 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:21:54,301 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 12:21:54,311 INFO L683 Elim1Store]: detected equality via solver [2018-11-28 12:21:54,314 INFO L683 Elim1Store]: detected equality via solver [2018-11-28 12:21:56,430 WARN L670 Elim1Store]: solver failed to check if following equality is implied: (= (select v_arrayElimCell_1 (+ (* 4 (mod v_prenex_13 4294967296)) v_prenex_15)) (select v_arrayElimCell_1 (+ (* 4 (mod (+ v_prenex_13 1) 4294967296)) v_prenex_15))) [2018-11-28 12:21:56,974 INFO L303 Elim1Store]: Index analysis took 2678 ms [2018-11-28 12:21:56,975 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 76 [2018-11-28 12:21:56,976 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-28 12:21:57,002 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:21:57,132 INFO L267 ElimStorePlain]: Start of recursive call 1: 16 dim-0 vars, 4 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-28 12:21:57,132 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 20 variables, input treesize:433, output treesize:7 [2018-11-28 12:21:57,162 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:21:57,179 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-28 12:21:57,179 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 11 [2018-11-28 12:21:57,180 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-28 12:21:57,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-28 12:21:57,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=84, Unknown=1, NotChecked=0, Total=110 [2018-11-28 12:21:57,181 INFO L87 Difference]: Start difference. First operand 24 states and 25 transitions. Second operand 11 states. [2018-11-28 12:22:08,654 WARN L180 SmtUtils]: Spent 5.01 s on a formula simplification. DAG size of input: 46 DAG size of output: 43 [2018-11-28 12:22:14,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:22:14,337 INFO L93 Difference]: Finished difference Result 34 states and 37 transitions. [2018-11-28 12:22:14,360 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-28 12:22:14,360 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 20 [2018-11-28 12:22:14,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:22:14,361 INFO L225 Difference]: With dead ends: 34 [2018-11-28 12:22:14,361 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 12:22:14,361 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 15 SyntacticMatches, 5 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 26.3s TimeCoverageRelationStatistics Valid=43, Invalid=138, Unknown=1, NotChecked=0, Total=182 [2018-11-28 12:22:14,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 12:22:14,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 12:22:14,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 12:22:14,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 12:22:14,362 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2018-11-28 12:22:14,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:22:14,362 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 12:22:14,363 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-28 12:22:14,363 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 12:22:14,363 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 12:22:14,366 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 12:22:17,376 WARN L180 SmtUtils]: Spent 2.99 s on a formula simplification that was a NOOP. DAG size: 48 [2018-11-28 12:22:21,800 WARN L180 SmtUtils]: Spent 4.42 s on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2018-11-28 12:22:21,863 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-28 12:22:21,863 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-28 12:22:21,863 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 12:22:21,863 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 12:22:21,863 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-28 12:22:21,864 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 12:22:21,864 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 12:22:21,864 INFO L444 ceAbstractionStarter]: At program point L31-2(lines 31 37) the Hoare annotation is: (let ((.cse1 (* 4294967296 (div main_~index2~0 4294967296)))) (or (let ((.cse0 (+ main_~index2~0 1))) (and (<= (+ (* 4294967296 (div .cse0 4294967296)) main_~index1~0) (+ (* 4294967296 (div (+ main_~index1~0 (- 1)) 4294967296)) main_~index2~0 1)) (<= main_~index2~0 (+ .cse1 99998)) (let ((.cse2 (select |#memory_int| |main_~#array~0.base|))) (= (mod (select .cse2 (+ (* 4 (mod .cse0 4294967296)) |main_~#array~0.offset|)) 4294967296) (mod (select .cse2 (+ (* 4 (mod (+ main_~index1~0 4294967295) 4294967296)) |main_~#array~0.offset|)) 4294967296))))) (and (<= main_~index1~0 (+ (* 4294967296 (div main_~index1~0 4294967296)) 99999)) (<= main_~index2~0 (+ .cse1 99999)) (= main_~loop_entered~0 0)))) [2018-11-28 12:22:21,864 INFO L448 ceAbstractionStarter]: For program point L31-3(lines 20 47) no Hoare annotation was computed. [2018-11-28 12:22:21,864 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 19 47) no Hoare annotation was computed. [2018-11-28 12:22:21,864 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 19 47) no Hoare annotation was computed. [2018-11-28 12:22:21,865 INFO L444 ceAbstractionStarter]: At program point L40-2(lines 40 44) the Hoare annotation is: (or (let ((.cse2 (+ main_~index2~0 1))) (let ((.cse0 (* 4294967296 (div .cse2 4294967296)))) (and (<= (+ .cse0 main_~index1~0) (+ (* 4294967296 (div (+ main_~index1~0 (- 1)) 4294967296)) main_~index2~0 1)) (<= main_~index2~0 (+ .cse0 99998)) (let ((.cse1 (select |#memory_int| |main_~#array~0.base|))) (= (mod (select .cse1 (+ (* 4 (mod .cse2 4294967296)) |main_~#array~0.offset|)) 4294967296) (mod (select .cse1 (+ (* 4 (mod (+ main_~index1~0 4294967295) 4294967296)) |main_~#array~0.offset|)) 4294967296)))))) (let ((.cse3 (* 4294967296 (div main_~index2~0 4294967296)))) (and (<= main_~index2~0 (+ .cse3 99999)) (<= (+ .cse3 main_~index1~0 1) (+ main_~index2~0 (* 4294967296 (div main_~index1~0 4294967296))))))) [2018-11-28 12:22:21,865 INFO L444 ceAbstractionStarter]: At program point L32(line 32) the Hoare annotation is: (let ((.cse0 (* 4294967296 (div main_~index2~0 4294967296)))) (and (or (and (<= main_~index2~0 (+ .cse0 99999)) (= main_~loop_entered~0 0)) (<= main_~index2~0 (+ .cse0 99998))) (<= (+ .cse0 main_~index1~0 1) (+ main_~index2~0 (* 4294967296 (div main_~index1~0 4294967296)))))) [2018-11-28 12:22:21,865 INFO L448 ceAbstractionStarter]: For program point L32-1(line 32) no Hoare annotation was computed. [2018-11-28 12:22:21,865 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 19 47) the Hoare annotation is: true [2018-11-28 12:22:21,865 INFO L444 ceAbstractionStarter]: At program point L41(line 41) the Hoare annotation is: (let ((.cse4 (+ main_~index2~0 1))) (let ((.cse0 (* 4294967296 (div .cse4 4294967296))) (.cse2 (* 4294967296 (div |main_#t~mem7| 4294967296))) (.cse1 (+ (* 4294967296 (div |main_#t~mem8| 4294967296)) |main_#t~mem7|))) (and (<= (+ .cse0 main_~index1~0) (+ (* 4294967296 (div (+ main_~index1~0 (- 1)) 4294967296)) main_~index2~0 1)) (< .cse1 (+ .cse2 |main_#t~mem8| 1)) (<= main_~index2~0 (+ .cse0 99998)) (let ((.cse3 (select |#memory_int| |main_~#array~0.base|))) (= (mod (select .cse3 (+ (* 4 (mod .cse4 4294967296)) |main_~#array~0.offset|)) 4294967296) (mod (select .cse3 (+ (* 4 (mod (+ main_~index1~0 4294967295) 4294967296)) |main_~#array~0.offset|)) 4294967296))) (<= (+ .cse2 |main_#t~mem8|) .cse1)))) [2018-11-28 12:22:21,866 INFO L448 ceAbstractionStarter]: For program point L41-1(line 41) no Hoare annotation was computed. [2018-11-28 12:22:21,866 INFO L448 ceAbstractionStarter]: For program point L39(lines 39 45) no Hoare annotation was computed. [2018-11-28 12:22:21,866 INFO L451 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 9 15) the Hoare annotation is: true [2018-11-28 12:22:21,866 INFO L448 ceAbstractionStarter]: For program point L12(line 12) no Hoare annotation was computed. [2018-11-28 12:22:21,866 INFO L448 ceAbstractionStarter]: For program point L11(lines 11 13) no Hoare annotation was computed. [2018-11-28 12:22:21,866 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 9 15) no Hoare annotation was computed. [2018-11-28 12:22:21,866 INFO L448 ceAbstractionStarter]: For program point L11-2(lines 9 15) no Hoare annotation was computed. [2018-11-28 12:22:21,867 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2018-11-28 12:22:21,872 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-28 12:22:21,873 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-28 12:22:21,877 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-28 12:22:21,877 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-28 12:22:21,878 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-28 12:22:21,878 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-28 12:22:21,879 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-28 12:22:21,879 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-28 12:22:21,881 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 12:22:21 BoogieIcfgContainer [2018-11-28 12:22:21,881 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 12:22:21,881 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 12:22:21,881 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 12:22:21,882 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 12:22:21,882 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:21:27" (3/4) ... [2018-11-28 12:22:21,886 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 12:22:21,892 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 12:22:21,893 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 12:22:21,893 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-11-28 12:22:21,896 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2018-11-28 12:22:21,896 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-28 12:22:21,896 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-28 12:22:21,938 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_f412a1f2-11b5-40df-87c7-6611c2cdc6e0/bin-2019/uautomizer/witness.graphml [2018-11-28 12:22:21,938 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 12:22:21,939 INFO L168 Benchmark]: Toolchain (without parser) took 54424.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.5 MB). Free memory was 957.6 MB in the beginning and 919.9 MB in the end (delta: 37.7 MB). Peak memory consumption was 199.2 MB. Max. memory is 11.5 GB. [2018-11-28 12:22:21,940 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 985.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:22:21,940 INFO L168 Benchmark]: CACSL2BoogieTranslator took 172.16 ms. Allocated memory is still 1.0 GB. Free memory was 957.6 MB in the beginning and 946.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 12:22:21,940 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.36 ms. Allocated memory is still 1.0 GB. Free memory is still 946.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:22:21,941 INFO L168 Benchmark]: Boogie Preprocessor took 70.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.5 MB). Free memory was 946.9 MB in the beginning and 1.2 GB in the end (delta: -209.9 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. [2018-11-28 12:22:21,941 INFO L168 Benchmark]: RCFGBuilder took 215.09 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: 14.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. [2018-11-28 12:22:21,942 INFO L168 Benchmark]: TraceAbstraction took 53886.62 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 926.6 MB in the end (delta: 215.7 MB). Peak memory consumption was 215.7 MB. Max. memory is 11.5 GB. [2018-11-28 12:22:21,942 INFO L168 Benchmark]: Witness Printer took 57.11 ms. Allocated memory is still 1.2 GB. Free memory was 923.3 MB in the beginning and 919.9 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-28 12:22:21,947 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 985.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 172.16 ms. Allocated memory is still 1.0 GB. Free memory was 957.6 MB in the beginning and 946.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.36 ms. Allocated memory is still 1.0 GB. Free memory is still 946.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 70.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 161.5 MB). Free memory was 946.9 MB in the beginning and 1.2 GB in the end (delta: -209.9 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 215.09 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: 14.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 53886.62 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 926.6 MB in the end (delta: 215.7 MB). Peak memory consumption was 215.7 MB. Max. memory is 11.5 GB. * Witness Printer took 57.11 ms. Allocated memory is still 1.2 GB. Free memory was 923.3 MB in the beginning and 919.9 MB 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.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 40]: Loop Invariant [2018-11-28 12:22:21,952 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-28 12:22:21,952 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-28 12:22:21,953 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-28 12:22:21,953 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: ((4294967296 * ((index2 + 1) / 4294967296) + index1 <= 4294967296 * ((index1 + -1) / 4294967296) + index2 + 1 && index2 <= 4294967296 * ((index2 + 1) / 4294967296) + 99998) && unknown-#memory_int-unknown[array][4 * ((index2 + 1) % 4294967296) + array] % 4294967296 == unknown-#memory_int-unknown[array][4 * ((index1 + 4294967295) % 4294967296) + array] % 4294967296) || (index2 <= 4294967296 * (index2 / 4294967296) + 99999 && 4294967296 * (index2 / 4294967296) + index1 + 1 <= index2 + 4294967296 * (index1 / 4294967296)) - InvariantResult [Line: 31]: Loop Invariant [2018-11-28 12:22:21,954 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-28 12:22:21,959 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-28 12:22:21,959 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-28 12:22:21,960 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: ((4294967296 * ((index2 + 1) / 4294967296) + index1 <= 4294967296 * ((index1 + -1) / 4294967296) + index2 + 1 && index2 <= 4294967296 * (index2 / 4294967296) + 99998) && unknown-#memory_int-unknown[array][4 * ((index2 + 1) % 4294967296) + array] % 4294967296 == unknown-#memory_int-unknown[array][4 * ((index1 + 4294967295) % 4294967296) + array] % 4294967296) || ((index1 <= 4294967296 * (index1 / 4294967296) + 99999 && index2 <= 4294967296 * (index2 / 4294967296) + 99999) && loop_entered == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 24 locations, 1 error locations. SAFE Result, 53.8s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 17.4s AutomataDifference, 0.0s DeadEndRemovalTime, 7.4s HoareAnnotationTime, HoareTripleCheckerStatistics: 74 SDtfs, 37 SDslu, 214 SDs, 0 SdLazy, 163 SolverSat, 18 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 11.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 51 GetRequests, 21 SyntacticMatches, 6 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 26.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=1, 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, 4 MinimizatonAttempts, 18 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 15 PreInvPairs, 22 NumberOfFragments, 313 HoareAnnotationTreeSize, 15 FomulaSimplifications, 34 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 155 FormulaSimplificationTreeSizeReductionInter, 7.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 28.4s InterpolantComputationTime, 82 NumberOfCodeBlocks, 82 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 77 ConstructedInterpolants, 0 QuantifiedInterpolants, 30787 SizeOfPredicates, 7 NumberOfNonLiveVariables, 73 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 9/10 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...