./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 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_ea52d55f-bccc-4711-beec-1bb123bb3d3a/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_ea52d55f-bccc-4711-beec-1bb123bb3d3a/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_ea52d55f-bccc-4711-beec-1bb123bb3d3a/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_ea52d55f-bccc-4711-beec-1bb123bb3d3a/bin-2019/utaipan/config/TaipanReach.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_ea52d55f-bccc-4711-beec-1bb123bb3d3a/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_ea52d55f-bccc-4711-beec-1bb123bb3d3a/bin-2019/utaipan --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 Taipan --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 0.1.23-635dfa2 [2018-12-03 07:43:05,363 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-03 07:43:05,364 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-03 07:43:05,370 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-03 07:43:05,370 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-03 07:43:05,371 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-03 07:43:05,372 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-03 07:43:05,372 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-03 07:43:05,373 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-03 07:43:05,374 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-03 07:43:05,374 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-03 07:43:05,374 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-03 07:43:05,375 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-03 07:43:05,375 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-03 07:43:05,376 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-03 07:43:05,376 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-03 07:43:05,376 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-03 07:43:05,377 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-03 07:43:05,378 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-03 07:43:05,379 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-03 07:43:05,380 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-03 07:43:05,380 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-03 07:43:05,381 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-03 07:43:05,381 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-03 07:43:05,381 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-03 07:43:05,382 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-03 07:43:05,382 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-03 07:43:05,383 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-03 07:43:05,383 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-03 07:43:05,384 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-03 07:43:05,384 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-03 07:43:05,384 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-03 07:43:05,384 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-03 07:43:05,384 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-03 07:43:05,385 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-03 07:43:05,385 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-03 07:43:05,385 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_ea52d55f-bccc-4711-beec-1bb123bb3d3a/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-03 07:43:05,392 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-03 07:43:05,392 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-03 07:43:05,393 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-03 07:43:05,393 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-03 07:43:05,393 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-03 07:43:05,393 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-03 07:43:05,393 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-03 07:43:05,393 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-03 07:43:05,393 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-03 07:43:05,394 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-03 07:43:05,394 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-03 07:43:05,394 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-03 07:43:05,394 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-03 07:43:05,394 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-03 07:43:05,394 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-03 07:43:05,394 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-03 07:43:05,394 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-03 07:43:05,395 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-03 07:43:05,395 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-03 07:43:05,395 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-03 07:43:05,395 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-03 07:43:05,395 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-03 07:43:05,395 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-03 07:43:05,395 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-03 07:43:05,395 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-03 07:43:05,395 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-03 07:43:05,395 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-03 07:43:05,395 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-03 07:43:05,395 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-03 07:43:05,396 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-03 07:43:05,396 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-03 07:43:05,396 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-03 07:43:05,396 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-03 07:43:05,396 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-03 07:43:05,396 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-03 07:43:05,396 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-03 07:43:05,396 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_ea52d55f-bccc-4711-beec-1bb123bb3d3a/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8538ad1ae962a1ba831f755fb5c2de9d27f82db5 [2018-12-03 07:43:05,414 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-03 07:43:05,420 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-03 07:43:05,422 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-03 07:43:05,423 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-03 07:43:05,423 INFO L276 PluginConnector]: CDTParser initialized [2018-12-03 07:43:05,424 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_ea52d55f-bccc-4711-beec-1bb123bb3d3a/bin-2019/utaipan/../../sv-benchmarks/c/loop-crafted/simple_array_index_value_true-unreach-call4_true-termination.i [2018-12-03 07:43:05,465 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ea52d55f-bccc-4711-beec-1bb123bb3d3a/bin-2019/utaipan/data/d91ea3046/4bee56aa32e14b09aa62d811ca180c5e/FLAGea42c222f [2018-12-03 07:43:05,889 INFO L307 CDTParser]: Found 1 translation units. [2018-12-03 07:43:05,889 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_ea52d55f-bccc-4711-beec-1bb123bb3d3a/sv-benchmarks/c/loop-crafted/simple_array_index_value_true-unreach-call4_true-termination.i [2018-12-03 07:43:05,892 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ea52d55f-bccc-4711-beec-1bb123bb3d3a/bin-2019/utaipan/data/d91ea3046/4bee56aa32e14b09aa62d811ca180c5e/FLAGea42c222f [2018-12-03 07:43:05,900 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_ea52d55f-bccc-4711-beec-1bb123bb3d3a/bin-2019/utaipan/data/d91ea3046/4bee56aa32e14b09aa62d811ca180c5e [2018-12-03 07:43:05,902 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-03 07:43:05,903 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-03 07:43:05,903 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-03 07:43:05,903 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-03 07:43:05,905 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-03 07:43:05,906 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 07:43:05" (1/1) ... [2018-12-03 07:43:05,907 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ba821c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:43:05, skipping insertion in model container [2018-12-03 07:43:05,907 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 07:43:05" (1/1) ... [2018-12-03 07:43:05,911 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-03 07:43:05,920 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-03 07:43:06,007 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 07:43:06,009 INFO L191 MainTranslator]: Completed pre-run [2018-12-03 07:43:06,022 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 07:43:06,032 INFO L195 MainTranslator]: Completed translation [2018-12-03 07:43:06,033 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:43:06 WrapperNode [2018-12-03 07:43:06,033 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-03 07:43:06,033 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-03 07:43:06,033 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-03 07:43:06,033 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-03 07:43:06,038 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:43:06" (1/1) ... [2018-12-03 07:43:06,043 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:43:06" (1/1) ... [2018-12-03 07:43:06,047 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-03 07:43:06,047 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-03 07:43:06,047 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-03 07:43:06,047 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-03 07:43:06,052 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:43:06" (1/1) ... [2018-12-03 07:43:06,053 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:43:06" (1/1) ... [2018-12-03 07:43:06,053 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:43:06" (1/1) ... [2018-12-03 07:43:06,054 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:43:06" (1/1) ... [2018-12-03 07:43:06,084 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:43:06" (1/1) ... [2018-12-03 07:43:06,087 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:43:06" (1/1) ... [2018-12-03 07:43:06,088 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:43:06" (1/1) ... [2018-12-03 07:43:06,089 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-03 07:43:06,089 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-03 07:43:06,089 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-03 07:43:06,089 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-03 07:43:06,090 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:43:06" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ea52d55f-bccc-4711-beec-1bb123bb3d3a/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-03 07:43:06,122 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-03 07:43:06,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-03 07:43:06,122 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-03 07:43:06,122 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-03 07:43:06,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-03 07:43:06,122 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-03 07:43:06,122 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-03 07:43:06,122 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-03 07:43:06,122 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-12-03 07:43:06,122 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-12-03 07:43:06,122 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-03 07:43:06,234 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-03 07:43:06,234 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-12-03 07:43:06,234 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 07:43:06 BoogieIcfgContainer [2018-12-03 07:43:06,234 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-03 07:43:06,235 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-03 07:43:06,235 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-03 07:43:06,237 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-03 07:43:06,237 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.12 07:43:05" (1/3) ... [2018-12-03 07:43:06,237 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@615cb015 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 07:43:06, skipping insertion in model container [2018-12-03 07:43:06,238 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:43:06" (2/3) ... [2018-12-03 07:43:06,238 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@615cb015 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 07:43:06, skipping insertion in model container [2018-12-03 07:43:06,238 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 07:43:06" (3/3) ... [2018-12-03 07:43:06,239 INFO L112 eAbstractionObserver]: Analyzing ICFG simple_array_index_value_true-unreach-call4_true-termination.i [2018-12-03 07:43:06,245 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-03 07:43:06,250 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-03 07:43:06,260 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-03 07:43:06,278 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-03 07:43:06,278 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-03 07:43:06,278 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-03 07:43:06,278 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-03 07:43:06,278 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-03 07:43:06,278 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-03 07:43:06,279 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-03 07:43:06,279 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-03 07:43:06,289 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2018-12-03 07:43:06,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-03 07:43:06,292 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 07:43:06,292 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 07:43:06,294 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 07:43:06,297 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:43:06,297 INFO L82 PathProgramCache]: Analyzing trace with hash -1079158542, now seen corresponding path program 1 times [2018-12-03 07:43:06,298 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 07:43:06,326 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:43:06,326 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 07:43:06,326 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:43:06,326 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 07:43:06,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 07:43:06,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 07:43:06,429 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 07:43:06,430 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-03 07:43:06,430 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 07:43:06,432 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-03 07:43:06,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-03 07:43:06,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-03 07:43:06,441 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 5 states. [2018-12-03 07:43:06,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 07:43:06,513 INFO L93 Difference]: Finished difference Result 56 states and 79 transitions. [2018-12-03 07:43:06,513 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-03 07:43:06,514 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2018-12-03 07:43:06,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 07:43:06,520 INFO L225 Difference]: With dead ends: 56 [2018-12-03 07:43:06,520 INFO L226 Difference]: Without dead ends: 30 [2018-12-03 07:43:06,522 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 [2018-12-03 07:43:06,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2018-12-03 07:43:06,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 25. [2018-12-03 07:43:06,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-12-03 07:43:06,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2018-12-03 07:43:06,548 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 11 [2018-12-03 07:43:06,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 07:43:06,548 INFO L480 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2018-12-03 07:43:06,548 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-03 07:43:06,548 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2018-12-03 07:43:06,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-03 07:43:06,549 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 07:43:06,549 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 07:43:06,549 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 07:43:06,550 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:43:06,550 INFO L82 PathProgramCache]: Analyzing trace with hash -476045897, now seen corresponding path program 1 times [2018-12-03 07:43:06,550 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 07:43:06,551 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:43:06,551 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 07:43:06,551 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:43:06,551 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 07:43:06,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 07:43:06,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 07:43:06,582 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 07:43:06,582 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-03 07:43:06,582 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 07:43:06,583 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-03 07:43:06,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-03 07:43:06,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-03 07:43:06,584 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand 3 states. [2018-12-03 07:43:06,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 07:43:06,592 INFO L93 Difference]: Finished difference Result 36 states and 39 transitions. [2018-12-03 07:43:06,592 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-03 07:43:06,592 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2018-12-03 07:43:06,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 07:43:06,593 INFO L225 Difference]: With dead ends: 36 [2018-12-03 07:43:06,593 INFO L226 Difference]: Without dead ends: 26 [2018-12-03 07:43:06,594 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 [2018-12-03 07:43:06,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2018-12-03 07:43:06,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 25. [2018-12-03 07:43:06,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-12-03 07:43:06,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2018-12-03 07:43:06,597 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 13 [2018-12-03 07:43:06,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 07:43:06,597 INFO L480 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions. [2018-12-03 07:43:06,597 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-03 07:43:06,598 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2018-12-03 07:43:06,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-03 07:43:06,598 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 07:43:06,598 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 07:43:06,598 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 07:43:06,598 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:43:06,599 INFO L82 PathProgramCache]: Analyzing trace with hash 1393486425, now seen corresponding path program 1 times [2018-12-03 07:43:06,599 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 07:43:06,599 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:43:06,599 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 07:43:06,599 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:43:06,600 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 07:43:06,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 07:43:06,699 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 07:43:06,699 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 07:43:06,700 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-03 07:43:06,700 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 07:43:06,700 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-03 07:43:06,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-03 07:43:06,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-12-03 07:43:06,701 INFO L87 Difference]: Start difference. First operand 25 states and 27 transitions. Second operand 8 states. [2018-12-03 07:43:06,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 07:43:06,776 INFO L93 Difference]: Finished difference Result 38 states and 41 transitions. [2018-12-03 07:43:06,777 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-03 07:43:06,777 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 18 [2018-12-03 07:43:06,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 07:43:06,777 INFO L225 Difference]: With dead ends: 38 [2018-12-03 07:43:06,778 INFO L226 Difference]: Without dead ends: 36 [2018-12-03 07:43:06,778 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2018-12-03 07:43:06,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-12-03 07:43:06,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 24. [2018-12-03 07:43:06,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-12-03 07:43:06,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2018-12-03 07:43:06,781 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 18 [2018-12-03 07:43:06,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 07:43:06,782 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2018-12-03 07:43:06,782 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-03 07:43:06,782 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2018-12-03 07:43:06,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-12-03 07:43:06,782 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 07:43:06,782 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 07:43:06,783 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 07:43:06,783 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:43:06,783 INFO L82 PathProgramCache]: Analyzing trace with hash 618852702, now seen corresponding path program 1 times [2018-12-03 07:43:06,783 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 07:43:06,784 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:43:06,784 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 07:43:06,784 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:43:06,784 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 07:43:06,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 07:43:07,021 WARN L180 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 71 [2018-12-03 07:43:07,066 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 07:43:07,067 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 07:43:07,067 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 07:43:07,067 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 21 with the following transitions: [2018-12-03 07:43:07,068 INFO L205 CegarAbsIntRunner]: [0], [1], [5], [12], [14], [16], [22], [31], [42], [45], [47], [50], [52], [53], [54], [55], [57], [58], [59] [2018-12-03 07:43:07,090 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-03 07:43:07,090 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 07:43:07,208 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-03 07:43:07,209 INFO L272 AbstractInterpreter]: Visited 19 different actions 35 times. Merged at 4 different actions 4 times. Never widened. Performed 158 root evaluator evaluations with a maximum evaluation depth of 7. Performed 158 inverse root evaluator evaluations with a maximum inverse evaluation depth of 7. Found 1 fixpoints after 1 different actions. Largest state had 23 variables. [2018-12-03 07:43:07,217 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:43:07,218 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-03 07:43:07,218 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 07:43:07,218 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ea52d55f-bccc-4711-beec-1bb123bb3d3a/bin-2019/utaipan/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 [2018-12-03 07:43:07,228 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 07:43:07,228 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-03 07:43:07,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 07:43:07,266 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 07:43:12,008 WARN L307 Elim1Store]: Array PQE input equivalent to false [2018-12-03 07:43:12,008 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-03 07:43:12,405 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 [2018-12-03 07:43:12,411 INFO L701 Elim1Store]: detected not equals via solver [2018-12-03 07:43:12,412 INFO L701 Elim1Store]: detected not equals via solver [2018-12-03 07:43:14,437 WARN L670 Elim1Store]: solver failed to check if following equality is implied: (= (+ (* 4 (mod (+ v_prenex_14 4294967295) 4294967296)) v_prenex_15) (+ (* 4 (mod v_prenex_13 4294967296)) v_prenex_15)) [2018-12-03 07:43:14,455 INFO L683 Elim1Store]: detected equality via solver [2018-12-03 07:43:14,470 INFO L701 Elim1Store]: detected not equals via solver [2018-12-03 07:43:16,589 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))) [2018-12-03 07:43:17,051 INFO L683 Elim1Store]: detected equality via solver [2018-12-03 07:43:17,058 INFO L303 Elim1Store]: Index analysis took 4650 ms [2018-12-03 07:43:17,059 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 79 [2018-12-03 07:43:17,060 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-12-03 07:43:17,069 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-03 07:43:19,497 INFO L267 ElimStorePlain]: Start of recursive call 1: 16 dim-0 vars, 4 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-12-03 07:43:19,497 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 20 variables, input treesize:433, output treesize:7 [2018-12-03 07:43:19,529 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 07:43:19,530 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 07:43:19,716 WARN L180 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 63 [2018-12-03 07:43:19,866 WARN L307 Elim1Store]: Array PQE input equivalent to true [2018-12-03 07:43:19,867 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-03 07:44:58,667 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 124 treesize of output 112 [2018-12-03 07:44:58,673 INFO L683 Elim1Store]: detected equality via solver [2018-12-03 07:44:58,674 INFO L683 Elim1Store]: detected equality via solver [2018-12-03 07:44:58,678 INFO L683 Elim1Store]: detected equality via solver [2018-12-03 07:44:58,678 INFO L683 Elim1Store]: detected equality via solver [2018-12-03 07:44:58,900 INFO L683 Elim1Store]: detected equality via solver [2018-12-03 07:44:58,928 INFO L683 Elim1Store]: detected equality via solver [2018-12-03 07:44:58,949 INFO L303 Elim1Store]: Index analysis took 280 ms [2018-12-03 07:44:58,958 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 82 treesize of output 137 [2018-12-03 07:44:58,961 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-12-03 07:44:59,022 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-03 07:45:36,717 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 170 treesize of output 150 [2018-12-03 07:45:36,892 INFO L683 Elim1Store]: detected equality via solver [2018-12-03 07:45:36,893 INFO L683 Elim1Store]: detected equality via solver [2018-12-03 07:45:36,905 INFO L683 Elim1Store]: detected equality via solver [2018-12-03 07:45:36,906 INFO L683 Elim1Store]: detected equality via solver [2018-12-03 07:45:36,906 INFO L683 Elim1Store]: detected equality via solver [2018-12-03 07:45:36,907 INFO L683 Elim1Store]: detected equality via solver [2018-12-03 07:45:36,908 INFO L683 Elim1Store]: detected equality via solver [2018-12-03 07:45:36,908 INFO L683 Elim1Store]: detected equality via solver [2018-12-03 07:45:36,914 INFO L683 Elim1Store]: detected equality via solver [2018-12-03 07:45:36,915 INFO L683 Elim1Store]: detected equality via solver [2018-12-03 07:45:36,915 INFO L683 Elim1Store]: detected equality via solver [2018-12-03 07:45:36,916 INFO L683 Elim1Store]: detected equality via solver [2018-12-03 07:45:36,916 INFO L683 Elim1Store]: detected equality via solver [2018-12-03 07:45:37,024 INFO L683 Elim1Store]: detected equality via solver [2018-12-03 07:45:37,082 INFO L303 Elim1Store]: Index analysis took 364 ms [2018-12-03 07:45:37,099 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 2 case distinctions, treesize of input 132 treesize of output 309 [2018-12-03 07:45:37,104 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 4 xjuncts. [2018-12-03 07:45:37,183 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-03 07:46:10,059 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 174 treesize of output 154 [2018-12-03 07:46:10,072 INFO L683 Elim1Store]: detected equality via solver [2018-12-03 07:46:10,073 INFO L683 Elim1Store]: detected equality via solver [2018-12-03 07:46:10,077 INFO L683 Elim1Store]: detected equality via solver [2018-12-03 07:46:10,077 INFO L683 Elim1Store]: detected equality via solver [2018-12-03 07:46:10,078 INFO L683 Elim1Store]: detected equality via solver [2018-12-03 07:46:10,078 INFO L683 Elim1Store]: detected equality via solver [2018-12-03 07:46:10,079 INFO L683 Elim1Store]: detected equality via solver [2018-12-03 07:46:10,080 INFO L683 Elim1Store]: detected equality via solver [2018-12-03 07:46:10,102 INFO L683 Elim1Store]: detected equality via solver [2018-12-03 07:46:10,103 INFO L683 Elim1Store]: detected equality via solver [2018-12-03 07:46:10,110 INFO L683 Elim1Store]: detected equality via solver [2018-12-03 07:46:10,110 INFO L683 Elim1Store]: detected equality via solver [2018-12-03 07:46:10,136 INFO L683 Elim1Store]: detected equality via solver [2018-12-03 07:46:10,137 INFO L683 Elim1Store]: detected equality via solver [2018-12-03 07:46:12,212 WARN L670 Elim1Store]: solver failed to check if following equality is implied: (= (select v_arrayElimCell_14 (+ (* 4 (mod (+ main_~index1~0 1) 4294967296)) |main_~#array~0.offset| (- 17179869184))) (select v_arrayElimCell_14 (+ (* 4 (mod main_~index1~0 4294967296)) |main_~#array~0.offset|))) [2018-12-03 07:46:13,002 INFO L303 Elim1Store]: Index analysis took 2941 ms [2018-12-03 07:46:13,018 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 2 case distinctions, treesize of input 136 treesize of output 319 [2018-12-03 07:46:13,023 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 4 xjuncts. [2018-12-03 07:46:13,157 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-03 07:46:18,165 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 148 treesize of output 132 [2018-12-03 07:46:18,169 INFO L683 Elim1Store]: detected equality via solver [2018-12-03 07:46:18,170 INFO L683 Elim1Store]: detected equality via solver [2018-12-03 07:46:18,172 INFO L683 Elim1Store]: detected equality via solver [2018-12-03 07:46:18,173 INFO L683 Elim1Store]: detected equality via solver [2018-12-03 07:46:18,173 INFO L683 Elim1Store]: detected equality via solver [2018-12-03 07:46:18,174 INFO L683 Elim1Store]: detected equality via solver [2018-12-03 07:46:18,174 INFO L683 Elim1Store]: detected equality via solver [2018-12-03 07:46:18,175 INFO L683 Elim1Store]: detected equality via solver [2018-12-03 07:46:18,175 INFO L683 Elim1Store]: detected equality via solver [2018-12-03 07:46:18,223 INFO L683 Elim1Store]: detected equality via solver [2018-12-03 07:46:18,255 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 109 treesize of output 218 [2018-12-03 07:46:18,258 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 2 xjuncts. [2018-12-03 07:46:18,294 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-03 07:46:21,528 INFO L267 ElimStorePlain]: Start of recursive call 1: 156 dim-0 vars, 78 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-03 07:46:21,529 INFO L202 ElimStorePlain]: Needed 10 recursive calls to eliminate 234 variables, input treesize:12356, output treesize:31 [2018-12-03 07:46:21,597 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 07:46:21,618 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-12-03 07:46:21,618 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8, 7] imperfect sequences [8] total 13 [2018-12-03 07:46:21,618 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 07:46:21,619 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-03 07:46:21,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-03 07:46:21,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=121, Unknown=2, NotChecked=0, Total=156 [2018-12-03 07:46:21,620 INFO L87 Difference]: Start difference. First operand 24 states and 25 transitions. Second operand 8 states. [2018-12-03 07:46:25,711 WARN L180 SmtUtils]: Spent 2.13 s on a formula simplification. DAG size of input: 46 DAG size of output: 43 [2018-12-03 07:46:34,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 07:46:34,662 INFO L93 Difference]: Finished difference Result 34 states and 37 transitions. [2018-12-03 07:46:34,663 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-03 07:46:34,663 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 20 [2018-12-03 07:46:34,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 07:46:34,663 INFO L225 Difference]: With dead ends: 34 [2018-12-03 07:46:34,663 INFO L226 Difference]: Without dead ends: 0 [2018-12-03 07:46:34,664 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 30 SyntacticMatches, 8 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 9.6s TimeCoverageRelationStatistics Valid=54, Invalid=183, Unknown=3, NotChecked=0, Total=240 [2018-12-03 07:46:34,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-03 07:46:34,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-03 07:46:34,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-03 07:46:34,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-03 07:46:34,664 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2018-12-03 07:46:34,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 07:46:34,665 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-03 07:46:34,665 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-03 07:46:34,665 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-03 07:46:34,665 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-03 07:46:34,668 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-03 07:46:34,887 WARN L180 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2018-12-03 07:46:34,920 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-03 07:46:34,920 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-12-03 07:46:34,921 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-03 07:46:34,921 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-03 07:46:34,921 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-03 07:46:34,921 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-03 07:46:34,921 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-03 07:46:34,921 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)))) [2018-12-03 07:46:34,921 INFO L448 ceAbstractionStarter]: For program point L31-3(lines 20 47) no Hoare annotation was computed. [2018-12-03 07:46:34,921 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 19 47) no Hoare annotation was computed. [2018-12-03 07:46:34,921 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 19 47) no Hoare annotation was computed. [2018-12-03 07:46:34,921 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))))))) [2018-12-03 07:46:34,922 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)))))) [2018-12-03 07:46:34,922 INFO L448 ceAbstractionStarter]: For program point L32-1(line 32) no Hoare annotation was computed. [2018-12-03 07:46:34,922 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 19 47) the Hoare annotation is: true [2018-12-03 07:46:34,922 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)))) [2018-12-03 07:46:34,922 INFO L448 ceAbstractionStarter]: For program point L41-1(line 41) no Hoare annotation was computed. [2018-12-03 07:46:34,922 INFO L448 ceAbstractionStarter]: For program point L39(lines 39 45) no Hoare annotation was computed. [2018-12-03 07:46:34,922 INFO L451 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 9 15) the Hoare annotation is: true [2018-12-03 07:46:34,922 INFO L448 ceAbstractionStarter]: For program point L12(line 12) no Hoare annotation was computed. [2018-12-03 07:46:34,922 INFO L448 ceAbstractionStarter]: For program point L11(lines 11 13) no Hoare annotation was computed. [2018-12-03 07:46:34,922 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2018-12-03 07:46:34,922 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 9 15) no Hoare annotation was computed. [2018-12-03 07:46:34,923 INFO L448 ceAbstractionStarter]: For program point L11-2(lines 9 15) no Hoare annotation was computed. [2018-12-03 07:46:34,927 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-03 07:46:34,928 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-03 07:46:34,931 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-03 07:46:34,931 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-03 07:46:34,932 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-03 07:46:34,932 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-03 07:46:34,933 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-03 07:46:34,933 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-03 07:46:34,934 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.12 07:46:34 BoogieIcfgContainer [2018-12-03 07:46:34,934 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-03 07:46:34,934 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-03 07:46:34,934 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-03 07:46:34,934 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-03 07:46:34,935 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 07:43:06" (3/4) ... [2018-12-03 07:46:34,937 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-03 07:46:34,940 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-03 07:46:34,941 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-03 07:46:34,941 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-12-03 07:46:34,943 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2018-12-03 07:46:34,943 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-12-03 07:46:34,943 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-03 07:46:34,967 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_ea52d55f-bccc-4711-beec-1bb123bb3d3a/bin-2019/utaipan/witness.graphml [2018-12-03 07:46:34,967 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-03 07:46:34,968 INFO L168 Benchmark]: Toolchain (without parser) took 209065.89 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 230.2 MB). Free memory was 953.5 MB in the beginning and 1.0 GB in the end (delta: -71.7 MB). Peak memory consumption was 158.4 MB. Max. memory is 11.5 GB. [2018-12-03 07:46:34,968 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 07:46:34,969 INFO L168 Benchmark]: CACSL2BoogieTranslator took 129.82 ms. Allocated memory is still 1.0 GB. Free memory was 953.5 MB in the beginning and 941.6 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. [2018-12-03 07:46:34,969 INFO L168 Benchmark]: Boogie Procedure Inliner took 13.47 ms. Allocated memory is still 1.0 GB. Free memory is still 941.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 07:46:34,969 INFO L168 Benchmark]: Boogie Preprocessor took 42.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -186.2 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. [2018-12-03 07:46:34,969 INFO L168 Benchmark]: RCFGBuilder took 145.27 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: 11.4 MB). Peak memory consumption was 11.4 MB. Max. memory is 11.5 GB. [2018-12-03 07:46:34,970 INFO L168 Benchmark]: TraceAbstraction took 208699.25 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 93.8 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 91.3 MB). Peak memory consumption was 185.2 MB. Max. memory is 11.5 GB. [2018-12-03 07:46:34,970 INFO L168 Benchmark]: Witness Printer took 33.19 ms. Allocated memory is still 1.3 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 07:46:34,971 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 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 129.82 ms. Allocated memory is still 1.0 GB. Free memory was 953.5 MB in the beginning and 941.6 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 13.47 ms. Allocated memory is still 1.0 GB. Free memory is still 941.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 42.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 941.6 MB in the beginning and 1.1 GB in the end (delta: -186.2 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 145.27 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: 11.4 MB). Peak memory consumption was 11.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 208699.25 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 93.8 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 91.3 MB). Peak memory consumption was 185.2 MB. Max. memory is 11.5 GB. * Witness Printer took 33.19 ms. Allocated memory is still 1.3 GB. Free memory is still 1.0 GB. There was no memory consumed. 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 [2018-12-03 07:46:34,974 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-03 07:46:34,974 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-03 07:46:34,974 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-03 07:46:34,974 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 [2018-12-03 07:46:34,975 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-03 07:46:34,975 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-03 07:46:34,976 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-03 07:46:34,976 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, 208.6s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 13.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 74 SDtfs, 34 SDslu, 198 SDs, 0 SdLazy, 154 SolverSat, 15 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 8.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 71 GetRequests, 36 SyntacticMatches, 9 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 9.7s 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, 0.1s AbstIntTime, 1 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, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 194.7s InterpolantComputationTime, 82 NumberOfCodeBlocks, 82 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 96 ConstructedInterpolants, 0 QuantifiedInterpolants, 55734 SizeOfPredicates, 10 NumberOfNonLiveVariables, 73 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 12/13 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...