./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/array-multidimensional/diff-3-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_7acc46d7-725a-408f-b729-e585082d8617/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_7acc46d7-725a-408f-b729-e585082d8617/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_7acc46d7-725a-408f-b729-e585082d8617/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_7acc46d7-725a-408f-b729-e585082d8617/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-multidimensional/diff-3-n-u_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_7acc46d7-725a-408f-b729-e585082d8617/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_7acc46d7-725a-408f-b729-e585082d8617/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 40bc9e07b9a1943395eba39d047966146a6d7872 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-26 21:03:12,334 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 21:03:12,336 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 21:03:12,349 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 21:03:12,349 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 21:03:12,350 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 21:03:12,351 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 21:03:12,353 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 21:03:12,355 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 21:03:12,356 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 21:03:12,357 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 21:03:12,357 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 21:03:12,358 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 21:03:12,359 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 21:03:12,360 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 21:03:12,361 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 21:03:12,362 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 21:03:12,363 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 21:03:12,365 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 21:03:12,367 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 21:03:12,368 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 21:03:12,369 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 21:03:12,371 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 21:03:12,372 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 21:03:12,372 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 21:03:12,373 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 21:03:12,374 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 21:03:12,375 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 21:03:12,376 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 21:03:12,376 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 21:03:12,377 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 21:03:12,378 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 21:03:12,378 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 21:03:12,378 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 21:03:12,379 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 21:03:12,380 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 21:03:12,380 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_7acc46d7-725a-408f-b729-e585082d8617/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-10-26 21:03:12,392 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 21:03:12,392 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 21:03:12,393 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 21:03:12,393 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-26 21:03:12,394 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-26 21:03:12,394 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-26 21:03:12,394 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-26 21:03:12,394 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-26 21:03:12,394 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-26 21:03:12,394 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-26 21:03:12,395 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-26 21:03:12,395 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 21:03:12,395 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 21:03:12,396 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 21:03:12,396 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 21:03:12,396 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 21:03:12,396 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 21:03:12,396 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 21:03:12,396 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 21:03:12,396 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 21:03:12,397 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 21:03:12,397 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 21:03:12,397 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 21:03:12,397 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 21:03:12,399 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 21:03:12,399 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 21:03:12,400 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 21:03:12,400 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 21:03:12,400 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 21:03:12,400 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 21:03:12,400 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-26 21:03:12,400 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 21:03:12,401 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 21:03:12,401 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-26 21:03:12,401 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_7acc46d7-725a-408f-b729-e585082d8617/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 -> 40bc9e07b9a1943395eba39d047966146a6d7872 [2018-10-26 21:03:12,432 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 21:03:12,443 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 21:03:12,447 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 21:03:12,448 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 21:03:12,449 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 21:03:12,449 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_7acc46d7-725a-408f-b729-e585082d8617/bin-2019/utaipan/../../sv-benchmarks/c/array-multidimensional/diff-3-n-u_true-unreach-call.i [2018-10-26 21:03:12,505 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7acc46d7-725a-408f-b729-e585082d8617/bin-2019/utaipan/data/88cd4b5ef/e773e8c4e9044c2d822f66983776a668/FLAG63f27aa9f [2018-10-26 21:03:12,886 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 21:03:12,887 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_7acc46d7-725a-408f-b729-e585082d8617/sv-benchmarks/c/array-multidimensional/diff-3-n-u_true-unreach-call.i [2018-10-26 21:03:12,892 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7acc46d7-725a-408f-b729-e585082d8617/bin-2019/utaipan/data/88cd4b5ef/e773e8c4e9044c2d822f66983776a668/FLAG63f27aa9f [2018-10-26 21:03:12,903 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_7acc46d7-725a-408f-b729-e585082d8617/bin-2019/utaipan/data/88cd4b5ef/e773e8c4e9044c2d822f66983776a668 [2018-10-26 21:03:12,905 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 21:03:12,906 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-26 21:03:12,907 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 21:03:12,907 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 21:03:12,910 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 21:03:12,910 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 09:03:12" (1/1) ... [2018-10-26 21:03:12,913 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@162e0c8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:03:12, skipping insertion in model container [2018-10-26 21:03:12,913 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 09:03:12" (1/1) ... [2018-10-26 21:03:12,921 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 21:03:12,943 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 21:03:13,075 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 21:03:13,078 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 21:03:13,105 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 21:03:13,125 INFO L193 MainTranslator]: Completed translation [2018-10-26 21:03:13,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:03:13 WrapperNode [2018-10-26 21:03:13,125 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 21:03:13,126 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 21:03:13,126 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 21:03:13,126 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 21:03:13,135 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:03:13" (1/1) ... [2018-10-26 21:03:13,145 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:03:13" (1/1) ... [2018-10-26 21:03:13,169 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 21:03:13,169 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 21:03:13,169 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 21:03:13,169 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 21:03:13,178 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:03:13" (1/1) ... [2018-10-26 21:03:13,178 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:03:13" (1/1) ... [2018-10-26 21:03:13,182 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:03:13" (1/1) ... [2018-10-26 21:03:13,189 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:03:13" (1/1) ... [2018-10-26 21:03:13,195 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:03:13" (1/1) ... [2018-10-26 21:03:13,206 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:03:13" (1/1) ... [2018-10-26 21:03:13,215 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:03:13" (1/1) ... [2018-10-26 21:03:13,218 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 21:03:13,218 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 21:03:13,218 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 21:03:13,218 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 21:03:13,219 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:03:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7acc46d7-725a-408f-b729-e585082d8617/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 [2018-10-26 21:03:13,398 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-26 21:03:13,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-26 21:03:13,400 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 21:03:13,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 21:03:13,400 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-26 21:03:13,400 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-26 21:03:13,400 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-10-26 21:03:13,400 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-10-26 21:03:13,952 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 21:03:13,953 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 09:03:13 BoogieIcfgContainer [2018-10-26 21:03:13,953 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 21:03:13,954 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 21:03:13,955 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 21:03:13,957 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 21:03:13,958 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 09:03:12" (1/3) ... [2018-10-26 21:03:13,959 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7485a07c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 09:03:13, skipping insertion in model container [2018-10-26 21:03:13,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:03:13" (2/3) ... [2018-10-26 21:03:13,959 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7485a07c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 09:03:13, skipping insertion in model container [2018-10-26 21:03:13,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 09:03:13" (3/3) ... [2018-10-26 21:03:13,961 INFO L112 eAbstractionObserver]: Analyzing ICFG diff-3-n-u_true-unreach-call.i [2018-10-26 21:03:13,970 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 21:03:13,977 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 21:03:13,991 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 21:03:14,023 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 21:03:14,024 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 21:03:14,024 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 21:03:14,024 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 21:03:14,024 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 21:03:14,024 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 21:03:14,024 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 21:03:14,024 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 21:03:14,054 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2018-10-26 21:03:14,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-10-26 21:03:14,062 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:03:14,063 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 21:03:14,065 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:03:14,070 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:03:14,070 INFO L82 PathProgramCache]: Analyzing trace with hash 1945566331, now seen corresponding path program 1 times [2018-10-26 21:03:14,073 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 21:03:14,126 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:03:14,126 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:03:14,126 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:03:14,127 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 21:03:14,177 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-10-26 21:03:14,177 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-10-26 21:03:14,177 INFO L171 anRefinementStrategy]: Switched to traceCheck mode Z3_NO_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7acc46d7-725a-408f-b729-e585082d8617/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2018-10-26 21:03:14,191 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:03:14,191 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-10-26 21:03:14,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:03:14,263 INFO L190 CegarAbsIntRunner]: Skipping current iteration for AI because the path program does not contain any loops [2018-10-26 21:03:14,265 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-10-26 21:03:14,265 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 21:03:14,265 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7acc46d7-725a-408f-b729-e585082d8617/bin-2019/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2018-10-26 21:03:14,282 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:03:14,282 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-26 21:03:14,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:03:14,349 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 21:03:14,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 21:03:14,371 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-26 21:03:14,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 21:03:14,467 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-10-26 21:03:14,467 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2018-10-26 21:03:14,468 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 21:03:14,471 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-26 21:03:14,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-26 21:03:14,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-26 21:03:14,483 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 2 states. [2018-10-26 21:03:14,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:03:14,506 INFO L93 Difference]: Finished difference Result 84 states and 121 transitions. [2018-10-26 21:03:14,506 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-26 21:03:14,507 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 20 [2018-10-26 21:03:14,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:03:14,516 INFO L225 Difference]: With dead ends: 84 [2018-10-26 21:03:14,516 INFO L226 Difference]: Without dead ends: 40 [2018-10-26 21:03:14,519 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-26 21:03:14,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-10-26 21:03:14,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2018-10-26 21:03:14,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-10-26 21:03:14,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 48 transitions. [2018-10-26 21:03:14,566 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 48 transitions. Word has length 20 [2018-10-26 21:03:14,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:03:14,566 INFO L481 AbstractCegarLoop]: Abstraction has 40 states and 48 transitions. [2018-10-26 21:03:14,566 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-26 21:03:14,567 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 48 transitions. [2018-10-26 21:03:14,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-10-26 21:03:14,567 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:03:14,568 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 21:03:14,568 INFO L424 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:03:14,569 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:03:14,569 INFO L82 PathProgramCache]: Analyzing trace with hash 1304843137, now seen corresponding path program 1 times [2018-10-26 21:03:14,569 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 21:03:14,570 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:03:14,570 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:03:14,570 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:03:14,570 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 21:03:14,578 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-10-26 21:03:14,578 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-10-26 21:03:14,578 INFO L171 anRefinementStrategy]: Switched to traceCheck mode Z3_NO_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7acc46d7-725a-408f-b729-e585082d8617/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 [2018-10-26 21:03:14,593 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:03:14,593 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) [2018-10-26 21:03:14,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:03:14,637 INFO L190 CegarAbsIntRunner]: Skipping current iteration for AI because the path program does not contain any loops [2018-10-26 21:03:14,638 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-10-26 21:03:14,638 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 21:03:14,638 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7acc46d7-725a-408f-b729-e585082d8617/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 [2018-10-26 21:03:14,652 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:03:14,653 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-26 21:03:14,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:03:14,692 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 21:03:14,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 21:03:14,734 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-26 21:03:14,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 21:03:14,843 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-10-26 21:03:14,843 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2018-10-26 21:03:14,843 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 21:03:14,844 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-26 21:03:14,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-26 21:03:14,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 21:03:14,845 INFO L87 Difference]: Start difference. First operand 40 states and 48 transitions. Second operand 3 states. [2018-10-26 21:03:15,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:03:15,043 INFO L93 Difference]: Finished difference Result 74 states and 90 transitions. [2018-10-26 21:03:15,043 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-26 21:03:15,043 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2018-10-26 21:03:15,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:03:15,045 INFO L225 Difference]: With dead ends: 74 [2018-10-26 21:03:15,045 INFO L226 Difference]: Without dead ends: 48 [2018-10-26 21:03:15,046 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 21:03:15,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2018-10-26 21:03:15,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 42. [2018-10-26 21:03:15,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-10-26 21:03:15,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 50 transitions. [2018-10-26 21:03:15,060 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 50 transitions. Word has length 22 [2018-10-26 21:03:15,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:03:15,061 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 50 transitions. [2018-10-26 21:03:15,061 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-26 21:03:15,061 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 50 transitions. [2018-10-26 21:03:15,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-10-26 21:03:15,064 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:03:15,065 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 21:03:15,065 INFO L424 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:03:15,065 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:03:15,065 INFO L82 PathProgramCache]: Analyzing trace with hash -272598018, now seen corresponding path program 1 times [2018-10-26 21:03:15,066 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 21:03:15,066 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:03:15,067 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:03:15,067 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:03:15,067 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 21:03:15,077 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-10-26 21:03:15,078 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-10-26 21:03:15,078 INFO L171 anRefinementStrategy]: Switched to traceCheck mode Z3_NO_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7acc46d7-725a-408f-b729-e585082d8617/bin-2019/utaipan/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2018-10-26 21:03:15,093 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:03:15,093 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-10-26 21:03:15,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:03:15,148 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 28 with the following transitions: [2018-10-26 21:03:15,150 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [9], [13], [15], [19], [23], [43], [47], [51], [55], [89], [93], [99], [103], [109], [113], [119], [135], [138], [140], [146], [147], [148], [150] [2018-10-26 21:03:15,201 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-26 21:03:15,201 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-26 21:03:15,410 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-26 21:03:15,411 INFO L272 AbstractInterpreter]: Visited 11 different actions 11 times. Never merged. Never widened. Never found a fixpoint. Largest state had 34 variables. [2018-10-26 21:03:15,426 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:03:15,427 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-26 21:03:15,594 INFO L227 lantSequenceWeakener]: Weakened 11 states. On average, predicates are now at 73.21% of their original sizes. [2018-10-26 21:03:15,594 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-26 21:03:15,740 INFO L415 sIntCurrentIteration]: We unified 26 AI predicates to 26 [2018-10-26 21:03:15,748 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-26 21:03:15,749 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 21:03:15,749 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-26 21:03:15,749 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 21:03:15,749 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 21:03:15,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 21:03:15,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 21:03:15,750 INFO L87 Difference]: Start difference. First operand 42 states and 50 transitions. Second operand 4 states. [2018-10-26 21:03:16,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:03:16,591 INFO L93 Difference]: Finished difference Result 87 states and 107 transitions. [2018-10-26 21:03:16,591 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 21:03:16,591 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 27 [2018-10-26 21:03:16,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:03:16,593 INFO L225 Difference]: With dead ends: 87 [2018-10-26 21:03:16,593 INFO L226 Difference]: Without dead ends: 53 [2018-10-26 21:03:16,594 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 26 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 21:03:16,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2018-10-26 21:03:16,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 49. [2018-10-26 21:03:16,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2018-10-26 21:03:16,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 58 transitions. [2018-10-26 21:03:16,611 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 58 transitions. Word has length 27 [2018-10-26 21:03:16,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:03:16,611 INFO L481 AbstractCegarLoop]: Abstraction has 49 states and 58 transitions. [2018-10-26 21:03:16,611 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 21:03:16,611 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 58 transitions. [2018-10-26 21:03:16,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-10-26 21:03:16,612 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:03:16,613 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 21:03:16,613 INFO L424 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:03:16,613 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:03:16,615 INFO L82 PathProgramCache]: Analyzing trace with hash -1346161551, now seen corresponding path program 1 times [2018-10-26 21:03:16,615 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 21:03:16,616 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:03:16,616 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:03:16,617 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:03:16,617 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 21:03:16,624 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-10-26 21:03:16,624 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-10-26 21:03:16,625 INFO L171 anRefinementStrategy]: Switched to traceCheck mode Z3_NO_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7acc46d7-725a-408f-b729-e585082d8617/bin-2019/utaipan/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2018-10-26 21:03:16,642 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:03:16,642 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-10-26 21:03:16,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:03:16,697 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 33 with the following transitions: [2018-10-26 21:03:16,697 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [9], [13], [15], [19], [23], [25], [29], [33], [39], [43], [47], [51], [55], [89], [93], [99], [103], [109], [113], [119], [135], [138], [140], [146], [147], [148], [150] [2018-10-26 21:03:16,699 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-26 21:03:16,699 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-26 21:03:16,749 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-26 21:03:16,749 INFO L272 AbstractInterpreter]: Visited 14 different actions 14 times. Never merged. Never widened. Never found a fixpoint. Largest state had 34 variables. [2018-10-26 21:03:16,770 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:03:16,770 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-26 21:03:16,881 INFO L227 lantSequenceWeakener]: Weakened 15 states. On average, predicates are now at 65.61% of their original sizes. [2018-10-26 21:03:16,882 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-26 21:03:17,079 INFO L415 sIntCurrentIteration]: We unified 31 AI predicates to 31 [2018-10-26 21:03:17,080 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-26 21:03:17,080 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 21:03:17,080 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-26 21:03:17,080 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 21:03:17,081 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-26 21:03:17,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-26 21:03:17,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-26 21:03:17,083 INFO L87 Difference]: Start difference. First operand 49 states and 58 transitions. Second operand 5 states. [2018-10-26 21:03:17,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:03:17,173 INFO L93 Difference]: Finished difference Result 51 states and 60 transitions. [2018-10-26 21:03:17,174 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-26 21:03:17,174 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2018-10-26 21:03:17,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:03:17,174 INFO L225 Difference]: With dead ends: 51 [2018-10-26 21:03:17,174 INFO L226 Difference]: Without dead ends: 0 [2018-10-26 21:03:17,175 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-26 21:03:17,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-26 21:03:17,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-26 21:03:17,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-26 21:03:17,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-26 21:03:17,176 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2018-10-26 21:03:17,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:03:17,176 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-26 21:03:17,176 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-26 21:03:17,177 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-26 21:03:17,177 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-26 21:03:17,185 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-26 21:03:17,499 WARN L179 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 268 [2018-10-26 21:03:17,655 WARN L179 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 266 [2018-10-26 21:03:17,973 WARN L179 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 269 DAG size of output: 267 [2018-10-26 21:03:20,135 WARN L179 SmtUtils]: Spent 2.13 s on a formula simplification. DAG size of input: 268 DAG size of output: 40 [2018-10-26 21:03:20,934 WARN L179 SmtUtils]: Spent 769.00 ms on a formula simplification. DAG size of input: 266 DAG size of output: 41 [2018-10-26 21:03:21,662 WARN L179 SmtUtils]: Spent 724.00 ms on a formula simplification. DAG size of input: 266 DAG size of output: 41 [2018-10-26 21:03:21,665 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-10-26 21:03:21,666 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-10-26 21:03:21,666 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-10-26 21:03:21,666 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-26 21:03:21,666 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-10-26 21:03:21,666 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-10-26 21:03:21,666 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-26 21:03:21,667 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 11 80) no Hoare annotation was computed. [2018-10-26 21:03:21,667 INFO L425 ceAbstractionStarter]: For program point L69-1(lines 69 76) no Hoare annotation was computed. [2018-10-26 21:03:21,667 INFO L421 ceAbstractionStarter]: At program point L69-3(lines 69 76) the Hoare annotation is: false [2018-10-26 21:03:21,667 INFO L425 ceAbstractionStarter]: For program point L69-4(lines 69 76) no Hoare annotation was computed. [2018-10-26 21:03:21,667 INFO L425 ceAbstractionStarter]: For program point L29-1(lines 29 37) no Hoare annotation was computed. [2018-10-26 21:03:21,667 INFO L421 ceAbstractionStarter]: At program point L29-3(lines 29 37) the Hoare annotation is: (and (<= 3300 (+ main_~n~0 main_~p~0)) (not (= |main_~#B~0.base| 0)) (<= (+ main_~j~0 main_~n~0) 1500) (<= |main_~#B~0.offset| main_~i~0) (<= 0 (* 2 |main_~#A~0.offset|)) (<= |main_~#A~0.offset| main_~k~0) (<= (+ |main_~#C~0.offset| main_~p~0) 1800) (<= (+ main_~i~0 |main_~#A~0.offset|) 0) (not (= |main_~#A~0.base| 0)) (<= 0 (* 2 |main_~#C~0.offset|)) (<= 1000 (+ main_~i~0 main_~m~0)) (<= main_~m~0 (+ |main_~#B~0.offset| 1000)) (<= main_~k~0 main_~j~0)) [2018-10-26 21:03:21,668 INFO L425 ceAbstractionStarter]: For program point L29-4(lines 29 37) no Hoare annotation was computed. [2018-10-26 21:03:21,668 INFO L425 ceAbstractionStarter]: For program point L46-1(lines 46 58) no Hoare annotation was computed. [2018-10-26 21:03:21,668 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 11 80) no Hoare annotation was computed. [2018-10-26 21:03:21,668 INFO L421 ceAbstractionStarter]: At program point L46-3(lines 46 58) the Hoare annotation is: false [2018-10-26 21:03:21,668 INFO L425 ceAbstractionStarter]: For program point L46-4(lines 46 58) no Hoare annotation was computed. [2018-10-26 21:03:21,668 INFO L425 ceAbstractionStarter]: For program point L71-1(lines 71 74) no Hoare annotation was computed. [2018-10-26 21:03:21,668 INFO L421 ceAbstractionStarter]: At program point L71-3(lines 71 74) the Hoare annotation is: false [2018-10-26 21:03:21,668 INFO L425 ceAbstractionStarter]: For program point L71-4(lines 71 74) no Hoare annotation was computed. [2018-10-26 21:03:21,669 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 11 80) the Hoare annotation is: true [2018-10-26 21:03:21,669 INFO L421 ceAbstractionStarter]: At program point L72(line 72) the Hoare annotation is: false [2018-10-26 21:03:21,669 INFO L425 ceAbstractionStarter]: For program point L72-1(line 72) no Hoare annotation was computed. [2018-10-26 21:03:21,669 INFO L425 ceAbstractionStarter]: For program point L31-1(lines 31 35) no Hoare annotation was computed. [2018-10-26 21:03:21,675 INFO L421 ceAbstractionStarter]: At program point L31-3(lines 31 35) the Hoare annotation is: (and (<= 3300 (+ main_~n~0 main_~p~0)) (not (= |main_~#B~0.base| 0)) (<= (+ main_~j~0 main_~n~0) 1500) (<= |main_~#B~0.offset| main_~i~0) (<= 0 (* 2 |main_~#A~0.offset|)) (<= |main_~#A~0.offset| main_~k~0) (<= (+ |main_~#C~0.offset| main_~p~0) 1800) (<= (+ main_~i~0 |main_~#A~0.offset|) 0) (not (= |main_~#A~0.base| 0)) (<= 0 (* 2 |main_~#C~0.offset|)) (<= 1000 (+ main_~i~0 main_~m~0)) (<= main_~m~0 (+ |main_~#B~0.offset| 1000)) (<= main_~k~0 main_~j~0)) [2018-10-26 21:03:21,675 INFO L425 ceAbstractionStarter]: For program point L31-4(lines 31 35) no Hoare annotation was computed. [2018-10-26 21:03:21,675 INFO L425 ceAbstractionStarter]: For program point L49-1(lines 49 56) no Hoare annotation was computed. [2018-10-26 21:03:21,675 INFO L421 ceAbstractionStarter]: At program point L49-3(lines 49 56) the Hoare annotation is: false [2018-10-26 21:03:21,675 INFO L425 ceAbstractionStarter]: For program point L49-4(lines 49 56) no Hoare annotation was computed. [2018-10-26 21:03:21,676 INFO L425 ceAbstractionStarter]: For program point L66-1(lines 66 78) no Hoare annotation was computed. [2018-10-26 21:03:21,676 INFO L421 ceAbstractionStarter]: At program point L66-3(lines 66 78) the Hoare annotation is: false [2018-10-26 21:03:21,676 INFO L425 ceAbstractionStarter]: For program point L66-4(lines 66 78) no Hoare annotation was computed. [2018-10-26 21:03:21,676 INFO L425 ceAbstractionStarter]: For program point L26-1(lines 26 39) no Hoare annotation was computed. [2018-10-26 21:03:21,676 INFO L421 ceAbstractionStarter]: At program point L26-3(lines 26 39) the Hoare annotation is: (and (<= 3300 (+ main_~n~0 main_~p~0)) (not (= |main_~#B~0.base| 0)) (<= (+ main_~j~0 main_~n~0) 1500) (<= |main_~#B~0.offset| main_~i~0) (<= main_~i~0 0) (<= 0 (* 2 |main_~#A~0.offset|)) (<= |main_~#A~0.offset| main_~k~0) (<= (+ |main_~#C~0.offset| main_~p~0) 1800) (not (= |main_~#A~0.base| 0)) (<= 0 (* 2 |main_~#C~0.offset|)) (<= 1000 (+ main_~i~0 main_~m~0)) (<= main_~m~0 (+ |main_~#B~0.offset| 1000)) (<= main_~k~0 main_~j~0)) [2018-10-26 21:03:21,676 INFO L425 ceAbstractionStarter]: For program point L26-4(lines 26 39) no Hoare annotation was computed. [2018-10-26 21:03:21,681 INFO L425 ceAbstractionStarter]: For program point L51-1(lines 51 54) no Hoare annotation was computed. [2018-10-26 21:03:21,682 INFO L421 ceAbstractionStarter]: At program point L51-3(lines 51 54) the Hoare annotation is: false [2018-10-26 21:03:21,682 INFO L425 ceAbstractionStarter]: For program point L51-4(lines 51 54) no Hoare annotation was computed. [2018-10-26 21:03:21,682 INFO L428 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-10-26 21:03:21,682 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-10-26 21:03:21,682 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-10-26 21:03:21,682 INFO L425 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-10-26 21:03:21,683 INFO L425 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-10-26 21:03:21,683 INFO L425 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-10-26 21:03:21,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 09:03:21 BoogieIcfgContainer [2018-10-26 21:03:21,709 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 21:03:21,718 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 21:03:21,718 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 21:03:21,718 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 21:03:21,719 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 09:03:13" (3/4) ... [2018-10-26 21:03:21,723 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-10-26 21:03:21,731 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-10-26 21:03:21,732 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-10-26 21:03:21,732 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-10-26 21:03:21,740 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 52 nodes and edges [2018-10-26 21:03:21,742 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2018-10-26 21:03:21,742 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-10-26 21:03:21,802 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_7acc46d7-725a-408f-b729-e585082d8617/bin-2019/utaipan/witness.graphml [2018-10-26 21:03:21,802 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 21:03:21,803 INFO L168 Benchmark]: Toolchain (without parser) took 8897.84 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 312.0 MB). Free memory was 955.8 MB in the beginning and 1.2 GB in the end (delta: -215.4 MB). Peak memory consumption was 96.6 MB. Max. memory is 11.5 GB. [2018-10-26 21:03:21,804 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 980.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 21:03:21,804 INFO L168 Benchmark]: CACSL2BoogieTranslator took 218.84 ms. Allocated memory is still 1.0 GB. Free memory was 955.8 MB in the beginning and 945.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-10-26 21:03:21,805 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.05 ms. Allocated memory is still 1.0 GB. Free memory was 945.1 MB in the beginning and 942.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-26 21:03:21,807 INFO L168 Benchmark]: Boogie Preprocessor took 48.60 ms. Allocated memory is still 1.0 GB. Free memory was 942.4 MB in the beginning and 939.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-26 21:03:21,807 INFO L168 Benchmark]: RCFGBuilder took 735.21 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.5 MB). Free memory was 939.7 MB in the beginning and 1.1 GB in the end (delta: -183.5 MB). Peak memory consumption was 15.8 MB. Max. memory is 11.5 GB. [2018-10-26 21:03:21,808 INFO L168 Benchmark]: TraceAbstraction took 7763.12 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 160.4 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -57.4 MB). Peak memory consumption was 468.3 MB. Max. memory is 11.5 GB. [2018-10-26 21:03:21,808 INFO L168 Benchmark]: Witness Printer took 84.89 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 11.5 GB. [2018-10-26 21:03:21,811 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 980.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 218.84 ms. Allocated memory is still 1.0 GB. Free memory was 955.8 MB in the beginning and 945.1 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 43.05 ms. Allocated memory is still 1.0 GB. Free memory was 945.1 MB in the beginning and 942.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 48.60 ms. Allocated memory is still 1.0 GB. Free memory was 942.4 MB in the beginning and 939.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 735.21 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.5 MB). Free memory was 939.7 MB in the beginning and 1.1 GB in the end (delta: -183.5 MB). Peak memory consumption was 15.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 7763.12 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 160.4 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -57.4 MB). Peak memory consumption was 468.3 MB. Max. memory is 11.5 GB. * Witness Printer took 84.89 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. 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: 46]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 31]: Loop Invariant Derived loop invariant: (((((((((((3300 <= n + p && !(B == 0)) && j + n <= 1500) && B <= i) && 0 <= 2 * A) && A <= k) && C + p <= 1800) && i + A <= 0) && !(A == 0)) && 0 <= 2 * C) && 1000 <= i + m) && m <= B + 1000) && k <= j - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: (((((((((((3300 <= n + p && !(B == 0)) && j + n <= 1500) && B <= i) && i <= 0) && 0 <= 2 * A) && A <= k) && C + p <= 1800) && !(A == 0)) && 0 <= 2 * C) && 1000 <= i + m) && m <= B + 1000) && k <= j - InvariantResult [Line: 69]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 49]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 71]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 66]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: (((((((((((3300 <= n + p && !(B == 0)) && j + n <= 1500) && B <= i) && 0 <= 2 * A) && A <= k) && C + p <= 1800) && i + A <= 0) && !(A == 0)) && 0 <= 2 * C) && 1000 <= i + m) && m <= B + 1000) && k <= j - InvariantResult [Line: 51]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 45 locations, 1 error locations. SAFE Result, 7.6s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 1.1s AutomataDifference, 0.0s DeadEndRemovalTime, 4.4s HoareAnnotationTime, HoareTripleCheckerStatistics: 149 SDtfs, 28 SDslu, 66 SDs, 0 SdLazy, 21 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 139 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=49occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.3s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9728586171310628 AbsIntWeakeningRatio, 1.3859649122807018 AbsIntAvgWeakeningVarsNumRemoved, 82.3157894736842 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 10 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 15 LocationsWithAnnotation, 18 PreInvPairs, 21 NumberOfFragments, 184 HoareAnnotationTreeSize, 18 FomulaSimplifications, 1123 FormulaSimplificationTreeSizeReduction, 0.7s HoareSimplificationTime, 15 FomulaSimplificationsInter, 2183 FormulaSimplificationTreeSizeReductionInter, 3.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 143 NumberOfCodeBlocks, 143 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 80 ConstructedInterpolants, 0 QuantifiedInterpolants, 1940 SizeOfPredicates, 2 NumberOfNonLiveVariables, 228 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...