./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-benchs/interpolation2_true-unreach-call.c.v+nlh-reducer.c --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_5ca628a7-cea9-4c5a-b286-f351cb2b85c2/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_5ca628a7-cea9-4c5a-b286-f351cb2b85c2/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_5ca628a7-cea9-4c5a-b286-f351cb2b85c2/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_5ca628a7-cea9-4c5a-b286-f351cb2b85c2/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/interpolation2_true-unreach-call.c.v+nlh-reducer.c -s /tmp/vcloud-vcloud-master/worker/working_dir_5ca628a7-cea9-4c5a-b286-f351cb2b85c2/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_5ca628a7-cea9-4c5a-b286-f351cb2b85c2/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 f6e8a3a31f477f95b41c919de6810cac9ea0df78 ........................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_5ca628a7-cea9-4c5a-b286-f351cb2b85c2/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_5ca628a7-cea9-4c5a-b286-f351cb2b85c2/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_5ca628a7-cea9-4c5a-b286-f351cb2b85c2/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_5ca628a7-cea9-4c5a-b286-f351cb2b85c2/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/interpolation2_true-unreach-call.c.v+nlh-reducer.c -s /tmp/vcloud-vcloud-master/worker/working_dir_5ca628a7-cea9-4c5a-b286-f351cb2b85c2/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_5ca628a7-cea9-4c5a-b286-f351cb2b85c2/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 f6e8a3a31f477f95b41c919de6810cac9ea0df78 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. No stderr output. --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 13:09:24,698 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 13:09:24,700 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 13:09:24,707 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 13:09:24,707 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 13:09:24,708 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 13:09:24,708 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 13:09:24,710 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 13:09:24,711 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 13:09:24,712 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 13:09:24,712 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 13:09:24,712 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 13:09:24,713 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 13:09:24,714 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 13:09:24,715 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 13:09:24,715 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 13:09:24,716 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 13:09:24,717 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 13:09:24,718 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 13:09:24,720 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 13:09:24,720 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 13:09:24,721 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 13:09:24,723 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 13:09:24,723 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 13:09:24,723 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 13:09:24,724 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 13:09:24,725 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 13:09:24,725 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 13:09:24,726 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 13:09:24,727 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 13:09:24,727 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 13:09:24,727 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 13:09:24,727 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 13:09:24,728 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 13:09:24,728 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 13:09:24,729 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 13:09:24,729 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_5ca628a7-cea9-4c5a-b286-f351cb2b85c2/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-10 13:09:24,739 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 13:09:24,739 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 13:09:24,740 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 13:09:24,740 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 13:09:24,740 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 13:09:24,740 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 13:09:24,741 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-10 13:09:24,741 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 13:09:24,741 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-10 13:09:24,741 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-10 13:09:24,741 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 13:09:24,742 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 13:09:24,742 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 13:09:24,742 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 13:09:24,742 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 13:09:24,742 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 13:09:24,742 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 13:09:24,742 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 13:09:24,743 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 13:09:24,743 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 13:09:24,743 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 13:09:24,743 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 13:09:24,743 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 13:09:24,743 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 13:09:24,743 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 13:09:24,744 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 13:09:24,744 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 13:09:24,744 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 13:09:24,744 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 13:09:24,744 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 13:09:24,744 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-10 13:09:24,744 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 13:09:24,744 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 13:09:24,745 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-10 13:09:24,745 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_5ca628a7-cea9-4c5a-b286-f351cb2b85c2/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 -> f6e8a3a31f477f95b41c919de6810cac9ea0df78 [2018-11-10 13:09:24,768 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 13:09:24,777 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 13:09:24,779 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 13:09:24,780 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 13:09:24,780 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 13:09:24,780 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_5ca628a7-cea9-4c5a-b286-f351cb2b85c2/bin-2019/utaipan/../../sv-benchmarks/c/float-benchs/interpolation2_true-unreach-call.c.v+nlh-reducer.c [2018-11-10 13:09:24,817 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5ca628a7-cea9-4c5a-b286-f351cb2b85c2/bin-2019/utaipan/data/556e64939/d2a44b15ffef472f847e6f0d3b1c8843/FLAG13042b8a7 [2018-11-10 13:09:25,162 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 13:09:25,162 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_5ca628a7-cea9-4c5a-b286-f351cb2b85c2/sv-benchmarks/c/float-benchs/interpolation2_true-unreach-call.c.v+nlh-reducer.c [2018-11-10 13:09:25,168 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5ca628a7-cea9-4c5a-b286-f351cb2b85c2/bin-2019/utaipan/data/556e64939/d2a44b15ffef472f847e6f0d3b1c8843/FLAG13042b8a7 [2018-11-10 13:09:25,179 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_5ca628a7-cea9-4c5a-b286-f351cb2b85c2/bin-2019/utaipan/data/556e64939/d2a44b15ffef472f847e6f0d3b1c8843 [2018-11-10 13:09:25,181 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 13:09:25,183 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 13:09:25,183 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 13:09:25,183 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 13:09:25,187 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 13:09:25,187 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:09:25" (1/1) ... [2018-11-10 13:09:25,190 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@481efa52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:09:25, skipping insertion in model container [2018-11-10 13:09:25,190 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:09:25" (1/1) ... [2018-11-10 13:09:25,198 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 13:09:25,218 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 13:09:25,332 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 13:09:25,335 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 13:09:25,355 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 13:09:25,367 INFO L193 MainTranslator]: Completed translation [2018-11-10 13:09:25,367 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:09:25 WrapperNode [2018-11-10 13:09:25,367 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 13:09:25,367 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 13:09:25,368 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 13:09:25,368 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 13:09:25,373 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:09:25" (1/1) ... [2018-11-10 13:09:25,379 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:09:25" (1/1) ... [2018-11-10 13:09:25,399 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 13:09:25,399 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 13:09:25,400 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 13:09:25,400 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 13:09:25,405 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:09:25" (1/1) ... [2018-11-10 13:09:25,405 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:09:25" (1/1) ... [2018-11-10 13:09:25,408 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:09:25" (1/1) ... [2018-11-10 13:09:25,408 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:09:25" (1/1) ... [2018-11-10 13:09:25,417 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:09:25" (1/1) ... [2018-11-10 13:09:25,420 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:09:25" (1/1) ... [2018-11-10 13:09:25,422 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:09:25" (1/1) ... [2018-11-10 13:09:25,425 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 13:09:25,425 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 13:09:25,425 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 13:09:25,425 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 13:09:25,426 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:09:25" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5ca628a7-cea9-4c5a-b286-f351cb2b85c2/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 13:09:25,512 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 13:09:25,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 13:09:25,513 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 13:09:25,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 13:09:25,513 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 13:09:25,513 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 13:09:25,865 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 13:09:25,866 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:09:25 BoogieIcfgContainer [2018-11-10 13:09:25,866 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 13:09:25,866 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 13:09:25,866 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 13:09:25,868 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 13:09:25,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 01:09:25" (1/3) ... [2018-11-10 13:09:25,869 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e092375 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:09:25, skipping insertion in model container [2018-11-10 13:09:25,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:09:25" (2/3) ... [2018-11-10 13:09:25,869 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e092375 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:09:25, skipping insertion in model container [2018-11-10 13:09:25,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:09:25" (3/3) ... [2018-11-10 13:09:25,871 INFO L112 eAbstractionObserver]: Analyzing ICFG interpolation2_true-unreach-call.c.v+nlh-reducer.c [2018-11-10 13:09:25,876 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 13:09:25,881 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 13:09:25,890 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 13:09:25,910 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 13:09:25,910 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 13:09:25,910 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 13:09:25,910 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 13:09:25,910 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 13:09:25,910 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 13:09:25,910 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 13:09:25,910 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 13:09:25,921 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2018-11-10 13:09:25,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-10 13:09:25,926 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:09:25,926 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 13:09:25,927 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:09:25,930 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:09:25,931 INFO L82 PathProgramCache]: Analyzing trace with hash -938213152, now seen corresponding path program 1 times [2018-11-10 13:09:25,932 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 13:09:25,969 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:09:25,969 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:09:25,969 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:09:25,969 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 13:09:26,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:09:26,087 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 13:09:26,089 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 13:09:26,089 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-10 13:09:26,089 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 13:09:26,092 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-10 13:09:26,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-10 13:09:26,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-10 13:09:26,103 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 5 states. [2018-11-10 13:09:26,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:09:26,204 INFO L93 Difference]: Finished difference Result 44 states and 57 transitions. [2018-11-10 13:09:26,204 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-10 13:09:26,206 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2018-11-10 13:09:26,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:09:26,212 INFO L225 Difference]: With dead ends: 44 [2018-11-10 13:09:26,212 INFO L226 Difference]: Without dead ends: 26 [2018-11-10 13:09:26,214 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 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 13:09:26,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2018-11-10 13:09:26,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2018-11-10 13:09:26,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-11-10 13:09:26,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 31 transitions. [2018-11-10 13:09:26,239 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 31 transitions. Word has length 17 [2018-11-10 13:09:26,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:09:26,239 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 31 transitions. [2018-11-10 13:09:26,239 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-10 13:09:26,239 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2018-11-10 13:09:26,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-10 13:09:26,240 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:09:26,240 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 13:09:26,240 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:09:26,240 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:09:26,240 INFO L82 PathProgramCache]: Analyzing trace with hash -923109115, now seen corresponding path program 1 times [2018-11-10 13:09:26,240 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 13:09:26,241 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:09:26,242 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:09:26,242 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:09:26,242 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 13:09:26,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 13:09:26,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 13:09:26,310 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 13:09:26,322 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:09:26,322 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:09:26,323 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:09:26,323 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:09:26,323 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:09:26,324 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:09:26,324 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:09:26,324 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:09:26,325 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:09:26,325 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:09:26,325 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:09:26,325 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:09:26,326 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:09:26,326 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:09:26,326 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:09:26,326 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:09:26,327 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:09:26,327 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:09:26,327 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:09:26,327 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:09:26,328 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:09:26,328 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:09:26,328 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:09:26,329 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 13:09:26,344 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 01:09:26 BoogieIcfgContainer [2018-11-10 13:09:26,344 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 13:09:26,345 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 13:09:26,345 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 13:09:26,345 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 13:09:26,345 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:09:25" (3/4) ... [2018-11-10 13:09:26,348 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-10 13:09:26,348 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 13:09:26,349 INFO L168 Benchmark]: Toolchain (without parser) took 1166.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 959.1 MB in the beginning and 1.1 GB in the end (delta: -94.1 MB). Peak memory consumption was 56.3 MB. Max. memory is 11.5 GB. [2018-11-10 13:09:26,350 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 13:09:26,350 INFO L168 Benchmark]: CACSL2BoogieTranslator took 183.98 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 945.7 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-11-10 13:09:26,351 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.82 ms. Allocated memory is still 1.0 GB. Free memory was 945.7 MB in the beginning and 943.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 13:09:26,352 INFO L168 Benchmark]: Boogie Preprocessor took 25.25 ms. Allocated memory is still 1.0 GB. Free memory was 943.0 MB in the beginning and 940.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 13:09:26,352 INFO L168 Benchmark]: RCFGBuilder took 440.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 940.3 MB in the beginning and 1.1 GB in the end (delta: -157.0 MB). Peak memory consumption was 17.2 MB. Max. memory is 11.5 GB. [2018-11-10 13:09:26,353 INFO L168 Benchmark]: TraceAbstraction took 478.19 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 38.7 MB). Peak memory consumption was 38.7 MB. Max. memory is 11.5 GB. [2018-11-10 13:09:26,353 INFO L168 Benchmark]: Witness Printer took 3.38 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 13:09:26,356 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 183.98 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 945.7 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 31.82 ms. Allocated memory is still 1.0 GB. Free memory was 945.7 MB in the beginning and 943.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.25 ms. Allocated memory is still 1.0 GB. Free memory was 943.0 MB in the beginning and 940.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 440.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 940.3 MB in the beginning and 1.1 GB in the end (delta: -157.0 MB). Peak memory consumption was 17.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 478.19 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 38.7 MB). Peak memory consumption was 38.7 MB. Max. memory is 11.5 GB. * Witness Printer took 3.38 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 48]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 29, overapproximation of someBinaryDOUBLEComparisonOperation at line 35, overapproximation of to_real at line 13, overapproximation of someBinaryArithmeticFLOAToperation at line 33. Possible FailurePath: [L1] int __return_main; [L7] int __return_136; VAL [\old(__return_136)=34, \old(__return_main)=46, __return_136=0, __return_main=0] [L10] int main__i; [L11] float main__z; [L12] float main__t; [L13] CALL float main__min[5] = { 5, 10, 12, 30, 150 }; [L13] RET float main__min[5] = { 5, 10, 12, 30, 150 }; [L13] RET float main__min[5] = { 5, 10, 12, 30, 150 }; [L13] RET float main__min[5] = { 5, 10, 12, 30, 150 }; [L13] RET float main__min[5] = { 5, 10, 12, 30, 150 }; [L13] RET float main__min[5] = { 5, 10, 12, 30, 150 }; [L13] RET float main__min[5] = { 5, 10, 12, 30, 150 }; [L14] CALL float main__max[5] = { 10, 12, 30, 150, 300 }; [L14] RET float main__max[5] = { 10, 12, 30, 150, 300 }; [L14] RET float main__max[5] = { 10, 12, 30, 150, 300 }; [L14] RET float main__max[5] = { 10, 12, 30, 150, 300 }; [L14] RET float main__max[5] = { 10, 12, 30, 150, 300 }; [L14] RET float main__max[5] = { 10, 12, 30, 150, 300 }; [L14] RET float main__max[5] = { 10, 12, 30, 150, 300 }; [L15] CALL float main__org[5] = { 1, 5, -10, 30, 20 }; [L15] RET float main__org[5] = { 1, 5, -10, 30, 20 }; [L15] RET float main__org[5] = { 1, 5, -10, 30, 20 }; [L15] RET float main__org[5] = { 1, 5, -10, 30, 20 }; [L15] RET float main__org[5] = { 1, 5, -10, 30, 20 }; [L15] RET float main__org[5] = { 1, 5, -10, 30, 20 }; [L15] RET float main__org[5] = { 1, 5, -10, 30, 20 }; [L16] CALL float main__slope[5] = { 4, -15, 40, -10, 0 }; [L16] RET float main__slope[5] = { 4, -15, 40, -10, 0 }; [L16] RET float main__slope[5] = { 4, -15, 40, -10, 0 }; [L16] RET float main__slope[5] = { 4, -15, 40, -10, 0 }; [L16] RET float main__slope[5] = { 4, -15, 40, -10, 0 }; [L16] RET float main__slope[5] = { 4, -15, 40, -10, 0 }; [L16] RET float main__slope[5] = { 4, -15, 40, -10, 0 }; [L17] main__t = __VERIFIER_nondet_float() [L18] int main____CPAchecker_TMP_0; [L19] CALL, EXPR main__min[0] [L19] RET, EXPR main__min[0] [L19] COND TRUE main__t >= (main__min[0]) [L21] CALL, EXPR main__max[4UL] [L21] RET, EXPR main__max[4UL] [L21] COND TRUE main__t <= (main__max[4UL]) [L23] main____CPAchecker_TMP_0 = 1 VAL [\old(__return_136)=0, __return_136=0, __return_main=0] [L24] COND TRUE main____CPAchecker_TMP_0 != 0 [L26] main__i = 0 VAL [\old(__return_136)=0, __return_136=0, __return_main=0] [L27] COND TRUE main__i < 5UL [L29] CALL, EXPR main__max[main__i] [L29] RET, EXPR main__max[main__i] [L29] COND TRUE main__t <= (main__max[main__i]) [L33] CALL, EXPR main__org[main__i] [L33] RET, EXPR main__org[main__i] [L33] CALL, EXPR main__slope[main__i] [L33] RET, EXPR main__slope[main__i] [L33] CALL, EXPR main__min[main__i] [L33] RET, EXPR main__min[main__i] [L33] CALL, EXPR main__max[main__i] [L33] RET, EXPR main__max[main__i] [L33] CALL, EXPR main__min[main__i] [L33] RET, EXPR main__min[main__i] [L33] main__z = (main__org[main__i]) + (((main__slope[main__i]) * (main__t - (main__min[main__i]))) / ((main__max[main__i]) - (main__min[main__i]))) [L34] int main____CPAchecker_TMP_1; VAL [\old(__return_136)=0, __return_136=0, __return_main=0] [L35] COND FALSE !(main__z >= -10.0) VAL [\old(__return_136)=0, __return_136=0, __return_main=0] [L61] main____CPAchecker_TMP_1 = 0 VAL [\old(__return_136)=0, __return_136=0, __return_main=0] [L42] int __tmp_1; [L43] __tmp_1 = main____CPAchecker_TMP_1 [L44] int __VERIFIER_assert__cond; [L45] __VERIFIER_assert__cond = __tmp_1 VAL [\old(__return_136)=0, __return_136=0, __return_main=0] [L46] COND TRUE __VERIFIER_assert__cond == 0 VAL [\old(__return_136)=0, __return_136=0, __return_main=0] [L48] __VERIFIER_error() VAL [\old(__return_136)=0, __return_136=0, __return_main=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 30 locations, 1 error locations. UNSAFE Result, 0.4s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 42 SDtfs, 37 SDslu, 93 SDs, 0 SdLazy, 11 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 384 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-1dbac8b [2018-11-10 13:09:27,786 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 13:09:27,788 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 13:09:27,796 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 13:09:27,796 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 13:09:27,797 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 13:09:27,798 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 13:09:27,799 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 13:09:27,800 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 13:09:27,801 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 13:09:27,801 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 13:09:27,802 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 13:09:27,802 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 13:09:27,803 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 13:09:27,804 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 13:09:27,804 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 13:09:27,805 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 13:09:27,806 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 13:09:27,807 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 13:09:27,808 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 13:09:27,809 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 13:09:27,810 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 13:09:27,811 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 13:09:27,812 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 13:09:27,812 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 13:09:27,812 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 13:09:27,813 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 13:09:27,814 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 13:09:27,814 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 13:09:27,815 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 13:09:27,815 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 13:09:27,815 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 13:09:27,816 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 13:09:27,816 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 13:09:27,816 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 13:09:27,817 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 13:09:27,817 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_5ca628a7-cea9-4c5a-b286-f351cb2b85c2/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-10 13:09:27,827 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 13:09:27,827 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 13:09:27,828 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 13:09:27,828 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 13:09:27,828 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 13:09:27,828 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 13:09:27,828 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 13:09:27,828 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 13:09:27,829 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 13:09:27,829 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 13:09:27,829 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 13:09:27,829 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 13:09:27,830 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 13:09:27,830 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 13:09:27,830 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 13:09:27,830 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-10 13:09:27,830 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-10 13:09:27,830 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 13:09:27,830 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 13:09:27,830 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 13:09:27,831 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 13:09:27,831 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 13:09:27,831 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 13:09:27,831 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 13:09:27,831 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 13:09:27,831 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 13:09:27,831 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 13:09:27,832 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 13:09:27,832 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-10 13:09:27,832 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 13:09:27,832 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-10 13:09:27,832 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-10 13:09:27,832 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_5ca628a7-cea9-4c5a-b286-f351cb2b85c2/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 -> f6e8a3a31f477f95b41c919de6810cac9ea0df78 [2018-11-10 13:09:27,861 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 13:09:27,870 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 13:09:27,873 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 13:09:27,874 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 13:09:27,874 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 13:09:27,875 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_5ca628a7-cea9-4c5a-b286-f351cb2b85c2/bin-2019/utaipan/../../sv-benchmarks/c/float-benchs/interpolation2_true-unreach-call.c.v+nlh-reducer.c [2018-11-10 13:09:27,919 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5ca628a7-cea9-4c5a-b286-f351cb2b85c2/bin-2019/utaipan/data/2f5ce8ee9/bb8d49381b574fdbbef65a9f21702e0c/FLAGb9e35b8c3 [2018-11-10 13:09:28,249 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 13:09:28,249 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_5ca628a7-cea9-4c5a-b286-f351cb2b85c2/sv-benchmarks/c/float-benchs/interpolation2_true-unreach-call.c.v+nlh-reducer.c [2018-11-10 13:09:28,253 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5ca628a7-cea9-4c5a-b286-f351cb2b85c2/bin-2019/utaipan/data/2f5ce8ee9/bb8d49381b574fdbbef65a9f21702e0c/FLAGb9e35b8c3 [2018-11-10 13:09:28,262 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_5ca628a7-cea9-4c5a-b286-f351cb2b85c2/bin-2019/utaipan/data/2f5ce8ee9/bb8d49381b574fdbbef65a9f21702e0c [2018-11-10 13:09:28,264 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 13:09:28,265 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 13:09:28,266 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 13:09:28,266 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 13:09:28,269 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 13:09:28,269 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:09:28" (1/1) ... [2018-11-10 13:09:28,271 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f8d6a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:09:28, skipping insertion in model container [2018-11-10 13:09:28,271 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:09:28" (1/1) ... [2018-11-10 13:09:28,276 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 13:09:28,292 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 13:09:28,409 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 13:09:28,413 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 13:09:28,444 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 13:09:28,459 INFO L193 MainTranslator]: Completed translation [2018-11-10 13:09:28,460 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:09:28 WrapperNode [2018-11-10 13:09:28,460 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 13:09:28,460 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 13:09:28,460 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 13:09:28,460 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 13:09:28,466 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:09:28" (1/1) ... [2018-11-10 13:09:28,474 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:09:28" (1/1) ... [2018-11-10 13:09:28,504 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 13:09:28,504 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 13:09:28,504 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 13:09:28,504 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 13:09:28,512 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:09:28" (1/1) ... [2018-11-10 13:09:28,513 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:09:28" (1/1) ... [2018-11-10 13:09:28,518 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:09:28" (1/1) ... [2018-11-10 13:09:28,518 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:09:28" (1/1) ... [2018-11-10 13:09:28,529 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:09:28" (1/1) ... [2018-11-10 13:09:28,532 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:09:28" (1/1) ... [2018-11-10 13:09:28,536 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:09:28" (1/1) ... [2018-11-10 13:09:28,539 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 13:09:28,540 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 13:09:28,540 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 13:09:28,540 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 13:09:28,541 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:09:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5ca628a7-cea9-4c5a-b286-f351cb2b85c2/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 13:09:28,629 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 13:09:28,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 13:09:28,629 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 13:09:28,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 13:09:28,629 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 13:09:28,630 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 13:09:29,092 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-10 13:09:31,582 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 13:09:31,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:09:31 BoogieIcfgContainer [2018-11-10 13:09:31,583 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 13:09:31,583 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 13:09:31,584 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 13:09:31,586 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 13:09:31,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 01:09:28" (1/3) ... [2018-11-10 13:09:31,587 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54a1a05e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:09:31, skipping insertion in model container [2018-11-10 13:09:31,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:09:28" (2/3) ... [2018-11-10 13:09:31,587 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54a1a05e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:09:31, skipping insertion in model container [2018-11-10 13:09:31,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:09:31" (3/3) ... [2018-11-10 13:09:31,589 INFO L112 eAbstractionObserver]: Analyzing ICFG interpolation2_true-unreach-call.c.v+nlh-reducer.c [2018-11-10 13:09:31,595 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 13:09:31,600 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 13:09:31,611 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 13:09:31,630 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 13:09:31,630 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 13:09:31,630 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 13:09:31,630 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 13:09:31,631 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 13:09:31,631 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 13:09:31,631 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 13:09:31,631 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 13:09:31,631 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 13:09:31,641 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2018-11-10 13:09:31,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-10 13:09:31,645 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:09:31,646 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 13:09:31,648 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:09:31,651 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:09:31,652 INFO L82 PathProgramCache]: Analyzing trace with hash -938213152, now seen corresponding path program 1 times [2018-11-10 13:09:31,654 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 13:09:31,655 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5ca628a7-cea9-4c5a-b286-f351cb2b85c2/bin-2019/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-11-10 13:09:31,659 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:09:32,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:09:32,116 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 13:09:32,166 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 13:09:32,166 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 13:09:32,179 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 13:09:32,179 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-10 13:09:32,182 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 13:09:32,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 13:09:32,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 13:09:32,195 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 4 states. [2018-11-10 13:09:34,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:09:34,412 INFO L93 Difference]: Finished difference Result 40 states and 53 transitions. [2018-11-10 13:09:34,413 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-10 13:09:34,414 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2018-11-10 13:09:34,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:09:34,423 INFO L225 Difference]: With dead ends: 40 [2018-11-10 13:09:34,423 INFO L226 Difference]: Without dead ends: 26 [2018-11-10 13:09:34,426 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-10 13:09:34,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2018-11-10 13:09:34,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2018-11-10 13:09:34,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-11-10 13:09:34,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 31 transitions. [2018-11-10 13:09:34,454 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 31 transitions. Word has length 17 [2018-11-10 13:09:34,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:09:34,455 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 31 transitions. [2018-11-10 13:09:34,455 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 13:09:34,455 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2018-11-10 13:09:34,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-10 13:09:34,456 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:09:34,456 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 13:09:34,456 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 13:09:34,456 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:09:34,457 INFO L82 PathProgramCache]: Analyzing trace with hash -923109115, now seen corresponding path program 1 times [2018-11-10 13:09:34,457 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 13:09:34,457 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5ca628a7-cea9-4c5a-b286-f351cb2b85c2/bin-2019/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-11-10 13:09:34,467 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:09:35,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:09:35,386 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 13:09:53,275 WARN L179 SmtUtils]: Spent 17.85 s on a formula simplification. DAG size of input: 172 DAG size of output: 148 [2018-11-10 13:09:53,613 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:09:53,614 INFO L303 Elim1Store]: Index analysis took 333 ms [2018-11-10 13:09:53,618 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 40 [2018-11-10 13:09:54,112 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:09:54,113 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 13:09:54,114 INFO L303 Elim1Store]: Index analysis took 470 ms [2018-11-10 13:09:54,115 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 38 [2018-11-10 13:09:54,823 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:09:55,417 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:09:55,894 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:09:56,633 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:09:56,634 INFO L303 Elim1Store]: Index analysis took 2494 ms [2018-11-10 13:09:56,635 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 25 [2018-11-10 13:09:56,636 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-10 13:10:00,724 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 13:10:05,515 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 13:10:23,005 INFO L303 Elim1Store]: Index analysis took 1927 ms [2018-11-10 13:10:23,006 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 311 treesize of output 232 [2018-11-10 13:10:37,242 WARN L179 SmtUtils]: Spent 14.23 s on a formula simplification that was a NOOP. DAG size: 102 [2018-11-10 13:10:37,317 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2018-11-10 13:10:37,512 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:10:37,625 INFO L303 Elim1Store]: Index analysis took 306 ms [2018-11-10 13:10:37,626 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 39 [2018-11-10 13:10:37,798 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:10:37,847 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:10:37,893 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:10:38,431 INFO L303 Elim1Store]: Index analysis took 801 ms [2018-11-10 13:10:38,432 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 55 [2018-11-10 13:10:38,616 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:10:38,699 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:10:38,781 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:10:38,850 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:10:38,919 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:10:39,004 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:10:39,879 INFO L303 Elim1Store]: Index analysis took 1442 ms [2018-11-10 13:10:39,880 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 79 [2018-11-10 13:10:40,130 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:10:40,227 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:10:40,274 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:10:40,296 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:10:40,354 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:10:40,414 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:10:40,477 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:10:40,509 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:10:40,560 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:10:40,657 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:10:42,158 INFO L303 Elim1Store]: Index analysis took 2272 ms [2018-11-10 13:10:42,159 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 116 [2018-11-10 13:10:42,160 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-10 13:10:43,970 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 13:10:45,127 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 13:10:46,125 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 13:10:47,183 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 13:10:50,061 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:10:50,062 INFO L303 Elim1Store]: Index analysis took 1103 ms [2018-11-10 13:10:50,063 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 187 treesize of output 200 [2018-11-10 13:10:58,886 WARN L179 SmtUtils]: Spent 8.82 s on a formula simplification. DAG size of input: 105 DAG size of output: 103 [2018-11-10 13:10:58,948 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 57 [2018-11-10 13:10:58,989 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:10:59,014 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 60 [2018-11-10 13:10:59,136 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:10:59,177 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:10:59,225 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:10:59,469 INFO L303 Elim1Store]: Index analysis took 452 ms [2018-11-10 13:10:59,470 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 71 [2018-11-10 13:10:59,598 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:10:59,650 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:10:59,699 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:10:59,743 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:10:59,791 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:10:59,831 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:11:00,350 INFO L303 Elim1Store]: Index analysis took 875 ms [2018-11-10 13:11:00,351 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 90 [2018-11-10 13:11:00,469 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:11:00,510 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:11:00,545 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:11:00,586 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:11:00,626 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:11:00,660 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:11:00,693 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:11:00,733 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:11:00,779 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:11:00,810 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:11:01,619 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:11:01,620 INFO L303 Elim1Store]: Index analysis took 1264 ms [2018-11-10 13:11:01,621 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 132 [2018-11-10 13:11:01,622 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-11-10 13:11:02,687 INFO L267 ElimStorePlain]: Start of recursive call 15: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 13:11:03,289 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 13:11:03,806 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 13:11:04,250 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 13:11:06,210 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:11:06,272 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:11:06,590 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:11:06,592 INFO L303 Elim1Store]: Index analysis took 963 ms [2018-11-10 13:11:06,592 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 146 treesize of output 236 [2018-11-10 13:11:06,626 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 83 [2018-11-10 13:11:06,688 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:11:06,740 INFO L303 Elim1Store]: Index analysis took 111 ms [2018-11-10 13:11:06,740 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 81 [2018-11-10 13:11:06,840 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:11:06,884 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:11:06,929 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:11:07,166 INFO L303 Elim1Store]: Index analysis took 424 ms [2018-11-10 13:11:07,167 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 87 [2018-11-10 13:11:07,257 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:11:07,301 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:11:07,340 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:11:07,375 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:11:07,418 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:11:07,456 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:11:07,877 INFO L303 Elim1Store]: Index analysis took 707 ms [2018-11-10 13:11:07,878 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 101 [2018-11-10 13:11:07,999 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:11:08,042 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:11:08,080 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:11:08,105 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:11:08,129 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:11:08,153 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:11:08,177 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:11:08,212 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:11:08,219 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:11:08,254 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:11:08,718 INFO L303 Elim1Store]: Index analysis took 835 ms [2018-11-10 13:11:08,719 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 132 [2018-11-10 13:11:08,720 INFO L267 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2018-11-10 13:11:09,403 INFO L267 ElimStorePlain]: Start of recursive call 21: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 13:11:09,832 INFO L267 ElimStorePlain]: Start of recursive call 20: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 13:11:10,178 INFO L267 ElimStorePlain]: Start of recursive call 19: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 13:11:10,473 INFO L267 ElimStorePlain]: Start of recursive call 18: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 13:11:11,618 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:11:11,704 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:11:11,746 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:11:11,840 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:11:11,876 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:11:12,048 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:11:12,049 INFO L303 Elim1Store]: Index analysis took 498 ms [2018-11-10 13:11:12,050 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 12 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 161 treesize of output 293 [2018-11-10 13:11:12,074 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 116 treesize of output 109 [2018-11-10 13:11:12,126 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:11:12,181 INFO L303 Elim1Store]: Index analysis took 105 ms [2018-11-10 13:11:12,182 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 102 [2018-11-10 13:11:12,217 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:11:12,229 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:11:12,242 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:11:12,295 INFO L303 Elim1Store]: Index analysis took 109 ms [2018-11-10 13:11:12,296 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 103 [2018-11-10 13:11:12,394 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:11:12,435 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:11:12,455 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:11:12,473 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:11:12,498 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:11:12,514 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:11:12,812 INFO L303 Elim1Store]: Index analysis took 511 ms [2018-11-10 13:11:12,826 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 112 [2018-11-10 13:11:12,849 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:11:12,854 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:11:12,858 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:11:12,863 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:11:12,868 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:11:12,872 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:11:12,877 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:11:12,882 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:11:12,886 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:11:12,891 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:11:12,944 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:11:12,969 INFO L303 Elim1Store]: Index analysis took 138 ms [2018-11-10 13:11:12,970 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 148 [2018-11-10 13:11:12,971 INFO L267 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2018-11-10 13:11:13,098 INFO L267 ElimStorePlain]: Start of recursive call 27: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 13:11:13,163 INFO L267 ElimStorePlain]: Start of recursive call 26: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 13:11:13,222 INFO L267 ElimStorePlain]: Start of recursive call 25: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 13:11:13,271 INFO L267 ElimStorePlain]: Start of recursive call 24: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 13:11:13,456 INFO L267 ElimStorePlain]: Start of recursive call 23: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 13:11:13,595 INFO L267 ElimStorePlain]: Start of recursive call 17: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 13:11:13,751 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 13:11:13,885 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 13:11:14,240 INFO L267 ElimStorePlain]: Start of recursive call 1: 20 dim-0 vars, 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-10 13:11:14,240 INFO L202 ElimStorePlain]: Needed 28 recursive calls to eliminate 22 variables, input treesize:556, output treesize:184 [2018-11-10 13:11:14,837 WARN L179 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 82 [2018-11-10 13:11:17,149 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:11:17,187 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:11:17,226 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:11:17,264 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:11:17,302 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:11:17,341 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:11:17,380 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:11:17,420 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:11:17,459 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:11:17,497 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:11:17,536 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:11:17,575 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 13:11:17,605 INFO L303 Elim1Store]: Index analysis took 2764 ms [2018-11-10 13:11:17,606 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 12 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 289 treesize of output 259 [2018-11-10 13:11:18,862 INFO L303 Elim1Store]: Index analysis took 1252 ms [2018-11-10 13:11:23,209 INFO L477 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 123 treesize of output 153 [2018-11-10 13:11:23,209 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2018-11-10 13:11:23,285 INFO L267 ElimStorePlain]: Start of recursive call 3: 195 dim-0 vars, End of recursive call: 195 dim-0 vars, and 54 xjuncts. [2018-11-10 13:12:19,212 WARN L522 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2018-11-10 13:12:19,212 FATAL L265 ToolchainWalker]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. No stderr output. at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:208) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:225) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.WrapperScript.checkSat(WrapperScript.java:116) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:61) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.getRedundancy(SimplifyDDA.java:621) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.SimplifyDDAWithTimeout.getRedundancy(SimplifyDDAWithTimeout.java:122) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA$Simplifier.walk(SimplifyDDA.java:371) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:122) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:113) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.simplifyOnce(SimplifyDDA.java:650) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.SimplifyDDAWithTimeout.getSimplifiedTerm(SimplifyDDAWithTimeout.java:187) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:258) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.elimAllRec(ElimStorePlain.java:199) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:293) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:245) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:200) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:286) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructForwardBackward(TraceCheckConstructor.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:188) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.MultiTrackRefinementStrategy.getTraceCheck(MultiTrackRefinementStrategy.java:234) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:429) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:435) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1427) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:630) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:205) ... 47 more [2018-11-10 13:12:19,214 INFO L168 Benchmark]: Toolchain (without parser) took 170949.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 206.6 MB). Free memory was 949.7 MB in the beginning and 975.6 MB in the end (delta: -25.8 MB). Peak memory consumption was 180.7 MB. Max. memory is 11.5 GB. [2018-11-10 13:12:19,215 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 13:12:19,215 INFO L168 Benchmark]: CACSL2BoogieTranslator took 194.11 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 932.6 MB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 11.5 GB. [2018-11-10 13:12:19,215 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.42 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 13:12:19,216 INFO L168 Benchmark]: Boogie Preprocessor took 35.76 ms. Allocated memory is still 1.0 GB. Free memory was 932.6 MB in the beginning and 927.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-10 13:12:19,216 INFO L168 Benchmark]: RCFGBuilder took 3042.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 927.2 MB in the beginning and 1.1 GB in the end (delta: -146.5 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2018-11-10 13:12:19,216 INFO L168 Benchmark]: TraceAbstraction took 167630.57 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 64.0 MB). Free memory was 1.1 GB in the beginning and 975.6 MB in the end (delta: 98.1 MB). Peak memory consumption was 162.1 MB. Max. memory is 11.5 GB. [2018-11-10 13:12:19,218 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 194.11 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 932.6 MB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 43.42 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 35.76 ms. Allocated memory is still 1.0 GB. Free memory was 932.6 MB in the beginning and 927.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 3042.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 927.2 MB in the beginning and 1.1 GB in the end (delta: -146.5 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 167630.57 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 64.0 MB). Free memory was 1.1 GB in the beginning and 975.6 MB in the end (delta: 98.1 MB). Peak memory consumption was 162.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. No stderr output. de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. No stderr output.: de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:208) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...