./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/array-multidimensional/init-non-constant-2-n-u_true-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_bda6b8f5-5dce-456d-b7d9-995256d55cff/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_bda6b8f5-5dce-456d-b7d9-995256d55cff/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_bda6b8f5-5dce-456d-b7d9-995256d55cff/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_bda6b8f5-5dce-456d-b7d9-995256d55cff/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-multidimensional/init-non-constant-2-n-u_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_bda6b8f5-5dce-456d-b7d9-995256d55cff/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_bda6b8f5-5dce-456d-b7d9-995256d55cff/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 d12eb08b2039f9abeae512069da6ca97cb9888fb .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 13:02:43,305 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 13:02:43,306 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 13:02:43,314 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 13:02:43,315 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 13:02:43,315 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 13:02:43,316 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 13:02:43,317 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 13:02:43,318 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 13:02:43,319 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 13:02:43,319 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 13:02:43,320 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 13:02:43,321 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 13:02:43,321 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 13:02:43,322 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 13:02:43,323 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 13:02:43,324 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 13:02:43,325 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 13:02:43,326 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 13:02:43,327 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 13:02:43,328 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 13:02:43,329 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 13:02:43,331 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 13:02:43,331 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 13:02:43,331 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 13:02:43,332 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 13:02:43,333 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 13:02:43,334 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 13:02:43,334 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 13:02:43,335 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 13:02:43,335 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 13:02:43,336 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 13:02:43,336 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 13:02:43,336 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 13:02:43,337 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 13:02:43,338 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 13:02:43,338 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_bda6b8f5-5dce-456d-b7d9-995256d55cff/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-10 13:02:43,349 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 13:02:43,349 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 13:02:43,349 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 13:02:43,349 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 13:02:43,350 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 13:02:43,350 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 13:02:43,350 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-10 13:02:43,350 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 13:02:43,350 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-10 13:02:43,350 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-10 13:02:43,350 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 13:02:43,351 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 13:02:43,351 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 13:02:43,351 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 13:02:43,351 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 13:02:43,352 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 13:02:43,352 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 13:02:43,352 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 13:02:43,352 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 13:02:43,354 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 13:02:43,354 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 13:02:43,354 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 13:02:43,354 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 13:02:43,354 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 13:02:43,355 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 13:02:43,355 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 13:02:43,355 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 13:02:43,355 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 13:02:43,355 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 13:02:43,355 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 13:02:43,355 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-10 13:02:43,356 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 13:02:43,356 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 13:02:43,356 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-10 13:02:43,356 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_bda6b8f5-5dce-456d-b7d9-995256d55cff/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 -> d12eb08b2039f9abeae512069da6ca97cb9888fb [2018-11-10 13:02:43,381 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 13:02:43,389 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 13:02:43,392 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 13:02:43,393 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 13:02:43,393 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 13:02:43,394 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_bda6b8f5-5dce-456d-b7d9-995256d55cff/bin-2019/utaipan/../../sv-benchmarks/c/array-multidimensional/init-non-constant-2-n-u_true-unreach-call.i [2018-11-10 13:02:43,430 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bda6b8f5-5dce-456d-b7d9-995256d55cff/bin-2019/utaipan/data/5ce125a88/937f6da6839c44519edfe8d1a6c3758b/FLAG2b475f02a [2018-11-10 13:02:43,731 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 13:02:43,731 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_bda6b8f5-5dce-456d-b7d9-995256d55cff/sv-benchmarks/c/array-multidimensional/init-non-constant-2-n-u_true-unreach-call.i [2018-11-10 13:02:43,736 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bda6b8f5-5dce-456d-b7d9-995256d55cff/bin-2019/utaipan/data/5ce125a88/937f6da6839c44519edfe8d1a6c3758b/FLAG2b475f02a [2018-11-10 13:02:43,747 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_bda6b8f5-5dce-456d-b7d9-995256d55cff/bin-2019/utaipan/data/5ce125a88/937f6da6839c44519edfe8d1a6c3758b [2018-11-10 13:02:43,750 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 13:02:43,751 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 13:02:43,752 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 13:02:43,752 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 13:02:43,755 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 13:02:43,755 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:02:43" (1/1) ... [2018-11-10 13:02:43,758 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34beab61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:02:43, skipping insertion in model container [2018-11-10 13:02:43,758 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:02:43" (1/1) ... [2018-11-10 13:02:43,765 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 13:02:43,779 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 13:02:43,904 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 13:02:43,906 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 13:02:43,920 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 13:02:43,932 INFO L193 MainTranslator]: Completed translation [2018-11-10 13:02:43,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:02:43 WrapperNode [2018-11-10 13:02:43,932 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 13:02:43,933 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 13:02:43,933 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 13:02:43,933 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 13:02:43,937 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:02:43" (1/1) ... [2018-11-10 13:02:43,942 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:02:43" (1/1) ... [2018-11-10 13:02:43,953 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 13:02:43,953 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 13:02:43,953 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 13:02:43,953 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 13:02:43,959 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:02:43" (1/1) ... [2018-11-10 13:02:43,959 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:02:43" (1/1) ... [2018-11-10 13:02:43,960 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:02:43" (1/1) ... [2018-11-10 13:02:43,961 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:02:43" (1/1) ... [2018-11-10 13:02:43,963 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:02:43" (1/1) ... [2018-11-10 13:02:43,966 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:02:43" (1/1) ... [2018-11-10 13:02:43,967 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:02:43" (1/1) ... [2018-11-10 13:02:43,968 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 13:02:43,968 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 13:02:43,968 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 13:02:43,968 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 13:02:43,969 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:02:43" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bda6b8f5-5dce-456d-b7d9-995256d55cff/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 [2018-11-10 13:02:44,044 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 13:02:44,045 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 13:02:44,045 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 13:02:44,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 13:02:44,045 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 13:02:44,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 13:02:44,045 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-10 13:02:44,045 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-10 13:02:44,185 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 13:02:44,185 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:02:44 BoogieIcfgContainer [2018-11-10 13:02:44,185 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 13:02:44,186 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 13:02:44,186 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 13:02:44,188 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 13:02:44,188 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 01:02:43" (1/3) ... [2018-11-10 13:02:44,188 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1457a6fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:02:44, skipping insertion in model container [2018-11-10 13:02:44,188 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:02:43" (2/3) ... [2018-11-10 13:02:44,189 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1457a6fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:02:44, skipping insertion in model container [2018-11-10 13:02:44,189 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:02:44" (3/3) ... [2018-11-10 13:02:44,190 INFO L112 eAbstractionObserver]: Analyzing ICFG init-non-constant-2-n-u_true-unreach-call.i [2018-11-10 13:02:44,196 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 13:02:44,200 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 13:02:44,209 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 13:02:44,228 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 13:02:44,228 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 13:02:44,229 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 13:02:44,229 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 13:02:44,229 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 13:02:44,229 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 13:02:44,229 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 13:02:44,229 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 13:02:44,239 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2018-11-10 13:02:44,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-10 13:02:44,243 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:02:44,243 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 13:02:44,245 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:02:44,249 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:02:44,249 INFO L82 PathProgramCache]: Analyzing trace with hash 319343225, now seen corresponding path program 1 times [2018-11-10 13:02:44,250 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 13:02:44,279 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:02:44,279 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:02:44,279 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:02:44,280 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 13:02:44,305 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-11-10 13:02:44,305 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-11-10 13:02:44,306 INFO L171 anRefinementStrategy]: Switched to traceCheck mode Z3_NO_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bda6b8f5-5dce-456d-b7d9-995256d55cff/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-11-10 13:02:44,312 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:02:44,312 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) [2018-11-10 13:02:44,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:02:44,343 INFO L190 CegarAbsIntRunner]: Skipping current iteration for AI because the path program does not contain any loops [2018-11-10 13:02:44,345 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-11-10 13:02:44,345 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 13:02:44,345 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bda6b8f5-5dce-456d-b7d9-995256d55cff/bin-2019/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-10 13:02:44,350 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:02:44,350 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-10 13:02:44,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:02:44,377 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 13:02:44,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 13:02:44,387 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 13:02:44,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 13:02:44,422 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-11-10 13:02:44,423 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2018-11-10 13:02:44,423 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 13:02:44,426 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-10 13:02:44,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-10 13:02:44,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 13:02:44,435 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 2 states. [2018-11-10 13:02:44,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:02:44,447 INFO L93 Difference]: Finished difference Result 54 states and 71 transitions. [2018-11-10 13:02:44,448 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 13:02:44,449 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2018-11-10 13:02:44,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:02:44,455 INFO L225 Difference]: With dead ends: 54 [2018-11-10 13:02:44,455 INFO L226 Difference]: Without dead ends: 25 [2018-11-10 13:02:44,458 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 13:02:44,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2018-11-10 13:02:44,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2018-11-10 13:02:44,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-11-10 13:02:44,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2018-11-10 13:02:44,483 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 16 [2018-11-10 13:02:44,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:02:44,483 INFO L481 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2018-11-10 13:02:44,483 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-10 13:02:44,483 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2018-11-10 13:02:44,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-10 13:02:44,484 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:02:44,484 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 13:02:44,485 INFO L424 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:02:44,485 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:02:44,485 INFO L82 PathProgramCache]: Analyzing trace with hash -855125148, now seen corresponding path program 1 times [2018-11-10 13:02:44,485 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 13:02:44,486 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:02:44,486 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:02:44,486 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:02:44,487 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 13:02:44,492 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-11-10 13:02:44,492 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-11-10 13:02:44,492 INFO L171 anRefinementStrategy]: Switched to traceCheck mode Z3_NO_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bda6b8f5-5dce-456d-b7d9-995256d55cff/bin-2019/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-11-10 13:02:44,505 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:02:44,505 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) [2018-11-10 13:02:44,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:02:44,532 INFO L190 CegarAbsIntRunner]: Skipping current iteration for AI because the path program does not contain any loops [2018-11-10 13:02:44,533 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-11-10 13:02:44,533 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 13:02:44,533 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bda6b8f5-5dce-456d-b7d9-995256d55cff/bin-2019/utaipan/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-10 13:02:44,540 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:02:44,540 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-10 13:02:44,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:02:44,560 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 13:02:44,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 13:02:44,597 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 13:02:44,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 13:02:44,647 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-11-10 13:02:44,647 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 6 [2018-11-10 13:02:44,648 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 13:02:44,648 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-10 13:02:44,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-10 13:02:44,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-10 13:02:44,649 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand 5 states. [2018-11-10 13:02:44,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:02:44,701 INFO L93 Difference]: Finished difference Result 53 states and 61 transitions. [2018-11-10 13:02:44,701 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-10 13:02:44,701 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2018-11-10 13:02:44,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:02:44,703 INFO L225 Difference]: With dead ends: 53 [2018-11-10 13:02:44,703 INFO L226 Difference]: Without dead ends: 37 [2018-11-10 13:02:44,703 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 27 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-11-10 13:02:44,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-11-10 13:02:44,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 27. [2018-11-10 13:02:44,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-11-10 13:02:44,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2018-11-10 13:02:44,709 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 17 [2018-11-10 13:02:44,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:02:44,709 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2018-11-10 13:02:44,709 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-10 13:02:44,709 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2018-11-10 13:02:44,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-10 13:02:44,709 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:02:44,709 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 13:02:44,710 INFO L424 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:02:44,710 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:02:44,710 INFO L82 PathProgramCache]: Analyzing trace with hash -1309373471, now seen corresponding path program 1 times [2018-11-10 13:02:44,710 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 13:02:44,710 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:02:44,710 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:02:44,710 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:02:44,711 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 13:02:44,716 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-11-10 13:02:44,716 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-11-10 13:02:44,716 INFO L171 anRefinementStrategy]: Switched to traceCheck mode Z3_NO_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bda6b8f5-5dce-456d-b7d9-995256d55cff/bin-2019/utaipan/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-11-10 13:02:44,729 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:02:44,729 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) [2018-11-10 13:02:44,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:02:44,751 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 23 with the following transitions: [2018-11-10 13:02:44,752 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [9], [13], [15], [19], [23], [29], [33], [37], [43], [47], [53], [65], [68], [70], [76], [77], [78], [80] [2018-11-10 13:02:44,786 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-10 13:02:44,786 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-10 13:02:45,283 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-10 13:02:45,284 INFO L272 AbstractInterpreter]: Visited 17 different actions 139 times. Merged at 10 different actions 110 times. Widened at 4 different actions 28 times. Found 2 fixpoints after 2 different actions. Largest state had 32 variables. [2018-11-10 13:02:45,300 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:02:45,301 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-10 13:02:45,394 INFO L227 lantSequenceWeakener]: Weakened 17 states. On average, predicates are now at 71.37% of their original sizes. [2018-11-10 13:02:45,394 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-10 13:02:45,485 INFO L415 sIntCurrentIteration]: We unified 21 AI predicates to 21 [2018-11-10 13:02:45,485 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-10 13:02:45,485 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 13:02:45,485 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-10 13:02:45,485 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 13:02:45,486 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-10 13:02:45,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-10 13:02:45,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-11-10 13:02:45,486 INFO L87 Difference]: Start difference. First operand 27 states and 30 transitions. Second operand 8 states. [2018-11-10 13:02:46,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:02:46,085 INFO L93 Difference]: Finished difference Result 75 states and 90 transitions. [2018-11-10 13:02:46,085 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-10 13:02:46,086 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 22 [2018-11-10 13:02:46,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:02:46,087 INFO L225 Difference]: With dead ends: 75 [2018-11-10 13:02:46,087 INFO L226 Difference]: Without dead ends: 56 [2018-11-10 13:02:46,087 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 29 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=160, Unknown=0, NotChecked=0, Total=240 [2018-11-10 13:02:46,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2018-11-10 13:02:46,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 33. [2018-11-10 13:02:46,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-11-10 13:02:46,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 36 transitions. [2018-11-10 13:02:46,098 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 36 transitions. Word has length 22 [2018-11-10 13:02:46,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:02:46,098 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 36 transitions. [2018-11-10 13:02:46,098 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-10 13:02:46,099 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 36 transitions. [2018-11-10 13:02:46,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-10 13:02:46,099 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:02:46,099 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 13:02:46,100 INFO L424 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:02:46,101 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:02:46,101 INFO L82 PathProgramCache]: Analyzing trace with hash 1520487246, now seen corresponding path program 1 times [2018-11-10 13:02:46,101 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 13:02:46,101 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:02:46,101 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:02:46,102 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:02:46,102 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 13:02:46,106 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-11-10 13:02:46,106 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-11-10 13:02:46,107 INFO L171 anRefinementStrategy]: Switched to traceCheck mode Z3_NO_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bda6b8f5-5dce-456d-b7d9-995256d55cff/bin-2019/utaipan/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-11-10 13:02:46,122 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:02:46,123 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) [2018-11-10 13:02:46,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:02:46,158 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 28 with the following transitions: [2018-11-10 13:02:46,158 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [9], [13], [15], [19], [23], [29], [33], [37], [43], [47], [51], [53], [59], [65], [68], [70], [76], [77], [78], [80] [2018-11-10 13:02:46,160 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-10 13:02:46,160 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-10 13:02:46,341 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-10 13:02:46,916 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-10 13:02:46,916 INFO L272 AbstractInterpreter]: Visited 23 different actions 322 times. Merged at 13 different actions 207 times. Widened at 5 different actions 55 times. Found 13 fixpoints after 5 different actions. Largest state had 32 variables. [2018-11-10 13:02:46,925 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:02:46,925 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-10 13:02:46,925 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 13:02:46,925 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bda6b8f5-5dce-456d-b7d9-995256d55cff/bin-2019/utaipan/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-10 13:02:46,935 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:02:46,935 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-10 13:02:46,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:02:46,953 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 13:02:46,981 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 13:02:46,981 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 13:02:47,016 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 13:02:47,040 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-10 13:02:47,040 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2018-11-10 13:02:47,041 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-10 13:02:47,041 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-10 13:02:47,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-10 13:02:47,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-11-10 13:02:47,042 INFO L87 Difference]: Start difference. First operand 33 states and 36 transitions. Second operand 9 states. [2018-11-10 13:02:47,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:02:47,169 INFO L93 Difference]: Finished difference Result 68 states and 76 transitions. [2018-11-10 13:02:47,174 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-10 13:02:47,174 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 27 [2018-11-10 13:02:47,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:02:47,175 INFO L225 Difference]: With dead ends: 68 [2018-11-10 13:02:47,175 INFO L226 Difference]: Without dead ends: 47 [2018-11-10 13:02:47,176 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 43 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2018-11-10 13:02:47,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-11-10 13:02:47,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 36. [2018-11-10 13:02:47,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-11-10 13:02:47,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 39 transitions. [2018-11-10 13:02:47,191 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 39 transitions. Word has length 27 [2018-11-10 13:02:47,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:02:47,191 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 39 transitions. [2018-11-10 13:02:47,192 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-10 13:02:47,192 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 39 transitions. [2018-11-10 13:02:47,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-10 13:02:47,192 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:02:47,193 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 13:02:47,193 INFO L424 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:02:47,193 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:02:47,193 INFO L82 PathProgramCache]: Analyzing trace with hash 481479563, now seen corresponding path program 2 times [2018-11-10 13:02:47,193 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 13:02:47,194 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:02:47,194 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:02:47,194 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:02:47,194 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 13:02:47,199 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-11-10 13:02:47,199 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-11-10 13:02:47,199 INFO L171 anRefinementStrategy]: Switched to traceCheck mode Z3_NO_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bda6b8f5-5dce-456d-b7d9-995256d55cff/bin-2019/utaipan/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-11-10 13:02:47,211 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 13:02:47,211 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) [2018-11-10 13:02:47,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:02:47,246 INFO L184 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-11-10 13:02:47,246 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-11-10 13:02:47,247 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 13:02:47,247 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bda6b8f5-5dce-456d-b7d9-995256d55cff/bin-2019/utaipan/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-10 13:02:47,252 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-10 13:02:47,252 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-11-10 13:02:47,271 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2018-11-10 13:02:47,271 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-10 13:02:47,273 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 13:02:47,300 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-11-10 13:02:47,301 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 13:02:47,326 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-11-10 13:02:47,346 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-10 13:02:47,346 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2018-11-10 13:02:47,346 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-10 13:02:47,346 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-10 13:02:47,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-10 13:02:47,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-10 13:02:47,347 INFO L87 Difference]: Start difference. First operand 36 states and 39 transitions. Second operand 6 states. [2018-11-10 13:02:47,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:02:47,389 INFO L93 Difference]: Finished difference Result 51 states and 57 transitions. [2018-11-10 13:02:47,389 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-10 13:02:47,389 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2018-11-10 13:02:47,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:02:47,390 INFO L225 Difference]: With dead ends: 51 [2018-11-10 13:02:47,390 INFO L226 Difference]: Without dead ends: 0 [2018-11-10 13:02:47,390 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 58 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2018-11-10 13:02:47,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-10 13:02:47,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-10 13:02:47,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-10 13:02:47,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-10 13:02:47,391 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2018-11-10 13:02:47,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:02:47,391 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 13:02:47,391 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-10 13:02:47,391 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-10 13:02:47,391 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 13:02:47,394 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-10 13:02:47,509 WARN L179 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 162 [2018-11-10 13:02:48,024 WARN L179 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 59 [2018-11-10 13:02:48,297 WARN L179 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 52 [2018-11-10 13:02:48,594 WARN L179 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 53 [2018-11-10 13:02:48,844 WARN L179 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 56 [2018-11-10 13:02:48,845 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-10 13:02:48,846 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-10 13:02:48,846 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-10 13:02:48,846 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-10 13:02:48,846 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-10 13:02:48,846 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-10 13:02:48,846 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-10 13:02:48,846 INFO L425 ceAbstractionStarter]: For program point L31-1(lines 31 34) no Hoare annotation was computed. [2018-11-10 13:02:48,846 INFO L421 ceAbstractionStarter]: At program point L31-3(lines 31 34) the Hoare annotation is: (let ((.cse1 (+ |main_~#A~0.offset| 1500)) (.cse0 (not (= |main_~#A~0.base| 0))) (.cse2 (+ main_~n~0 main_~q~0))) (or (and (<= 0 main_~j~0) (<= main_~j~0 0) (<= 0 (+ (* 2 main_~s~0) 4294967296)) (<= main_~s~0 0) (<= 3000 (* 2 main_~n~0)) (<= 0 (+ main_~q~0 |main_~#A~0.offset| 2147483648)) .cse0 (<= main_~n~0 .cse1) (<= (+ main_~n~0 |main_~#A~0.offset|) 1500) (<= .cse2 2499)) (and (<= main_~j~0 main_~i~0) (<= .cse1 main_~n~0) .cse0 (<= 0 (* 2 |main_~#A~0.offset|)) (<= main_~n~0 (+ main_~j~0 1500)) (<= 0 (+ main_~s~0 |main_~#A~0.offset| 2147483648)) (<= (+ main_~q~0 |main_~#A~0.offset|) 999) (<= 1501 .cse2) (<= main_~i~0 0) (<= (+ main_~s~0 |main_~#A~0.offset|) 1499)))) [2018-11-10 13:02:48,846 INFO L425 ceAbstractionStarter]: For program point L31-4(lines 31 34) no Hoare annotation was computed. [2018-11-10 13:02:48,846 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 12 52) no Hoare annotation was computed. [2018-11-10 13:02:48,846 INFO L421 ceAbstractionStarter]: At program point L44(line 44) the Hoare annotation is: false [2018-11-10 13:02:48,846 INFO L425 ceAbstractionStarter]: For program point L44-1(line 44) no Hoare annotation was computed. [2018-11-10 13:02:48,847 INFO L425 ceAbstractionStarter]: For program point L41-1(lines 41 48) no Hoare annotation was computed. [2018-11-10 13:02:48,847 INFO L421 ceAbstractionStarter]: At program point L41-3(lines 41 48) the Hoare annotation is: (let ((.cse8 (* 2 main_~s~0))) (let ((.cse0 (<= main_~q~0 1)) (.cse2 (<= (+ main_~q~0 main_~s~0) 1499)) (.cse4 (<= 0 (+ .cse8 4294967296))) (.cse3 (<= 3000 (* 2 main_~n~0))) (.cse5 (<= 0 (+ main_~q~0 |main_~#A~0.offset| 2147483648))) (.cse1 (not (= |main_~#A~0.base| 0))) (.cse6 (<= main_~n~0 (+ |main_~#A~0.offset| 1500))) (.cse7 (<= (+ main_~n~0 |main_~#A~0.offset|) 1500))) (or (and .cse0 .cse1 (<= 0 (+ main_~s~0 |main_~#A~0.offset| 2147483648)) .cse2 (<= (+ main_~j~0 main_~n~0) 1500) (<= (* 2 |main_~#A~0.offset|) 0) .cse3 (<= 0 (+ main_~j~0 |main_~#A~0.offset|)) (= main_~i~0 0)) (and (<= 0 main_~j~0) (and .cse4 .cse3 .cse5 .cse1 .cse6 .cse7 (<= (+ main_~n~0 main_~q~0) 2499)) (<= main_~j~0 0) (<= main_~s~0 0)) (and (<= main_~q~0 0) (<= 0 main_~i~0) (<= main_~i~0 0)) (and .cse0 (<= 1 main_~i~0) .cse2 (<= main_~i~0 1) .cse4 .cse3 .cse5 .cse1 (<= .cse8 2998) .cse6 .cse7)))) [2018-11-10 13:02:48,847 INFO L425 ceAbstractionStarter]: For program point L41-4(lines 41 48) no Hoare annotation was computed. [2018-11-10 13:02:48,847 INFO L425 ceAbstractionStarter]: For program point L29-1(lines 29 36) no Hoare annotation was computed. [2018-11-10 13:02:48,847 INFO L421 ceAbstractionStarter]: At program point L29-3(lines 29 36) the Hoare annotation is: (let ((.cse0 (<= main_~j~0 0)) (.cse1 (<= 0 (+ (* 2 main_~s~0) 4294967296))) (.cse3 (<= 0 (+ main_~q~0 |main_~#A~0.offset| 2147483648))) (.cse5 (<= main_~n~0 (+ |main_~#A~0.offset| 1500))) (.cse6 (<= (+ main_~n~0 |main_~#A~0.offset|) 1500)) (.cse7 (<= (+ main_~n~0 main_~q~0) 2499)) (.cse4 (not (= |main_~#A~0.base| 0))) (.cse2 (<= 3000 (* 2 main_~n~0)))) (or (and (<= main_~s~0 main_~j~0) (<= main_~i~0 1) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7) (and (<= 0 main_~j~0) .cse0 .cse1 (<= main_~s~0 0) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7) (and .cse4 (<= 0 (+ main_~s~0 |main_~#A~0.offset| 2147483648)) (<= (+ main_~q~0 |main_~#A~0.offset|) 999) (<= (+ main_~j~0 main_~n~0) 1500) (<= (* 2 |main_~#A~0.offset|) 0) .cse2 (<= main_~i~0 (+ main_~q~0 2147483648)) (<= (+ main_~s~0 |main_~#A~0.offset|) 1499) (<= 0 (+ main_~j~0 |main_~#A~0.offset|)) (= main_~i~0 0)))) [2018-11-10 13:02:48,847 INFO L425 ceAbstractionStarter]: For program point L29-4(lines 29 36) no Hoare annotation was computed. [2018-11-10 13:02:48,847 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 12 52) no Hoare annotation was computed. [2018-11-10 13:02:48,848 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 12 52) the Hoare annotation is: true [2018-11-10 13:02:48,848 INFO L425 ceAbstractionStarter]: For program point L43-1(lines 43 46) no Hoare annotation was computed. [2018-11-10 13:02:48,848 INFO L421 ceAbstractionStarter]: At program point L43-3(lines 43 46) the Hoare annotation is: (let ((.cse0 (not (= |main_~#A~0.base| 0))) (.cse1 (+ main_~n~0 main_~q~0))) (or (and (<= 0 main_~j~0) (<= main_~j~0 0) (<= 0 (+ (* 2 main_~s~0) 4294967296)) (<= main_~s~0 0) (<= 3000 (* 2 main_~n~0)) (<= 0 (+ main_~q~0 |main_~#A~0.offset| 2147483648)) .cse0 (<= main_~n~0 (+ |main_~#A~0.offset| 1500)) (<= (+ main_~n~0 |main_~#A~0.offset|) 1500) (<= .cse1 2499)) (and (<= (+ main_~q~0 main_~s~0) 1499) (<= main_~q~0 1) .cse0 (<= 0 main_~i~0) (<= 0 (* 2 |main_~#A~0.offset|)) (<= main_~n~0 (+ main_~j~0 1500)) (<= 0 (+ main_~s~0 |main_~#A~0.offset| 2147483648)) (<= (+ main_~i~0 |main_~#A~0.offset|) 0) (<= (+ main_~j~0 main_~n~0) 1500) (<= 1501 .cse1)))) [2018-11-10 13:02:48,848 INFO L425 ceAbstractionStarter]: For program point L43-4(lines 43 46) no Hoare annotation was computed. [2018-11-10 13:02:48,848 INFO L428 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-11-10 13:02:48,848 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-11-10 13:02:48,848 INFO L425 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-11-10 13:02:48,848 INFO L425 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-11-10 13:02:48,848 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-11-10 13:02:48,848 INFO L425 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-11-10 13:02:48,862 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 01:02:48 BoogieIcfgContainer [2018-11-10 13:02:48,862 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 13:02:48,862 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 13:02:48,862 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 13:02:48,862 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 13:02:48,863 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:02:44" (3/4) ... [2018-11-10 13:02:48,866 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-10 13:02:48,870 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-10 13:02:48,870 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-10 13:02:48,870 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-11-10 13:02:48,873 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2018-11-10 13:02:48,873 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-11-10 13:02:48,873 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-10 13:02:48,908 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_bda6b8f5-5dce-456d-b7d9-995256d55cff/bin-2019/utaipan/witness.graphml [2018-11-10 13:02:48,908 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 13:02:48,909 INFO L168 Benchmark]: Toolchain (without parser) took 5158.30 ms. Allocated memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: 454.6 MB). Free memory was 954.9 MB in the beginning and 1.3 GB in the end (delta: -304.1 MB). Peak memory consumption was 150.5 MB. Max. memory is 11.5 GB. [2018-11-10 13:02:48,909 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 13:02:48,910 INFO L168 Benchmark]: CACSL2BoogieTranslator took 180.50 ms. Allocated memory is still 1.0 GB. Free memory was 954.9 MB in the beginning and 944.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 13:02:48,910 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.23 ms. Allocated memory is still 1.0 GB. Free memory was 944.1 MB in the beginning and 941.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 13:02:48,910 INFO L168 Benchmark]: Boogie Preprocessor took 15.18 ms. Allocated memory is still 1.0 GB. Free memory is still 941.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 13:02:48,911 INFO L168 Benchmark]: RCFGBuilder took 217.12 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 173.5 MB). Free memory was 941.4 MB in the beginning and 1.2 GB in the end (delta: -212.2 MB). Peak memory consumption was 15.1 MB. Max. memory is 11.5 GB. [2018-11-10 13:02:48,911 INFO L168 Benchmark]: TraceAbstraction took 4676.23 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 281.0 MB). Free memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: -106.0 MB). Peak memory consumption was 583.8 MB. Max. memory is 11.5 GB. [2018-11-10 13:02:48,911 INFO L168 Benchmark]: Witness Printer took 45.89 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 702.1 kB). Peak memory consumption was 702.1 kB. Max. memory is 11.5 GB. [2018-11-10 13:02:48,916 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 180.50 ms. Allocated memory is still 1.0 GB. Free memory was 954.9 MB in the beginning and 944.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 20.23 ms. Allocated memory is still 1.0 GB. Free memory was 944.1 MB in the beginning and 941.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.18 ms. Allocated memory is still 1.0 GB. Free memory is still 941.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 217.12 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 173.5 MB). Free memory was 941.4 MB in the beginning and 1.2 GB in the end (delta: -212.2 MB). Peak memory consumption was 15.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4676.23 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 281.0 MB). Free memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: -106.0 MB). Peak memory consumption was 583.8 MB. Max. memory is 11.5 GB. * Witness Printer took 45.89 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 702.1 kB). Peak memory consumption was 702.1 kB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: 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: 41]: Loop Invariant Derived loop invariant: ((((((((((q <= 1 && !(A == 0)) && 0 <= s + A + 2147483648) && q + s <= 1499) && j + n <= 1500) && 2 * A <= 0) && 3000 <= 2 * n) && 0 <= j + A) && i == 0) || (((0 <= j && (((((0 <= 2 * s + 4294967296 && 3000 <= 2 * n) && 0 <= q + A + 2147483648) && !(A == 0)) && n <= A + 1500) && n + A <= 1500) && n + q <= 2499) && j <= 0) && s <= 0)) || ((q <= 0 && 0 <= i) && i <= 0)) || ((((((((((q <= 1 && 1 <= i) && q + s <= 1499) && i <= 1) && 0 <= 2 * s + 4294967296) && 3000 <= 2 * n) && 0 <= q + A + 2147483648) && !(A == 0)) && 2 * s <= 2998) && n <= A + 1500) && n + A <= 1500) - InvariantResult [Line: 31]: Loop Invariant Derived loop invariant: (((((((((0 <= j && j <= 0) && 0 <= 2 * s + 4294967296) && s <= 0) && 3000 <= 2 * n) && 0 <= q + A + 2147483648) && !(A == 0)) && n <= A + 1500) && n + A <= 1500) && n + q <= 2499) || (((((((((j <= i && A + 1500 <= n) && !(A == 0)) && 0 <= 2 * A) && n <= j + 1500) && 0 <= s + A + 2147483648) && q + A <= 999) && 1501 <= n + q) && i <= 0) && s + A <= 1499) - InvariantResult [Line: 43]: Loop Invariant Derived loop invariant: (((((((((0 <= j && j <= 0) && 0 <= 2 * s + 4294967296) && s <= 0) && 3000 <= 2 * n) && 0 <= q + A + 2147483648) && !(A == 0)) && n <= A + 1500) && n + A <= 1500) && n + q <= 2499) || (((((((((q + s <= 1499 && q <= 1) && !(A == 0)) && 0 <= i) && 0 <= 2 * A) && n <= j + 1500) && 0 <= s + A + 2147483648) && i + A <= 0) && j + n <= 1500) && 1501 <= n + q) - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: ((((((((((s <= j && i <= 1) && j <= 0) && 0 <= 2 * s + 4294967296) && 3000 <= 2 * n) && 0 <= q + A + 2147483648) && !(A == 0)) && n <= A + 1500) && n + A <= 1500) && n + q <= 2499) || (((((((((0 <= j && j <= 0) && 0 <= 2 * s + 4294967296) && s <= 0) && 3000 <= 2 * n) && 0 <= q + A + 2147483648) && !(A == 0)) && n <= A + 1500) && n + A <= 1500) && n + q <= 2499)) || (((((((((!(A == 0) && 0 <= s + A + 2147483648) && q + A <= 999) && j + n <= 1500) && 2 * A <= 0) && 3000 <= 2 * n) && i <= q + 2147483648) && s + A <= 1499) && 0 <= j + A) && i == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 30 locations, 1 error locations. SAFE Result, 4.6s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 0.8s AutomataDifference, 0.0s DeadEndRemovalTime, 1.4s HoareAnnotationTime, HoareTripleCheckerStatistics: 122 SDtfs, 142 SDslu, 231 SDs, 0 SdLazy, 136 SolverSat, 55 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 217 GetRequests, 174 SyntacticMatches, 7 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 1.3s AbstIntTime, 2 AbstIntIterations, 1 AbstIntStrong, 0.95625 AbsIntWeakeningRatio, 1.2857142857142858 AbsIntAvgWeakeningVarsNumRemoved, 158.33333333333334 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 44 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 14 PreInvPairs, 27 NumberOfFragments, 493 HoareAnnotationTreeSize, 14 FomulaSimplifications, 5545 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 10 FomulaSimplificationsInter, 2578 FormulaSimplificationTreeSizeReductionInter, 1.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 206 NumberOfCodeBlocks, 201 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 176 ConstructedInterpolants, 0 QuantifiedInterpolants, 8348 SizeOfPredicates, 12 NumberOfNonLiveVariables, 403 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 8 InterpolantComputations, 4 PerfectInterpolantSequences, 30/38 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...