./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-benchs/interpolation2_true-unreach-call.c.v+cfa-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_90e11042-d06f-4dff-9972-272f42ccf3a9/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_90e11042-d06f-4dff-9972-272f42ccf3a9/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_90e11042-d06f-4dff-9972-272f42ccf3a9/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_90e11042-d06f-4dff-9972-272f42ccf3a9/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/interpolation2_true-unreach-call.c.v+cfa-reducer.c -s /tmp/vcloud-vcloud-master/worker/working_dir_90e11042-d06f-4dff-9972-272f42ccf3a9/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_90e11042-d06f-4dff-9972-272f42ccf3a9/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 d3b9fd7fe4ecc5142fd3f383ee42b040964600c5 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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_90e11042-d06f-4dff-9972-272f42ccf3a9/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_90e11042-d06f-4dff-9972-272f42ccf3a9/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_90e11042-d06f-4dff-9972-272f42ccf3a9/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_90e11042-d06f-4dff-9972-272f42ccf3a9/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/interpolation2_true-unreach-call.c.v+cfa-reducer.c -s /tmp/vcloud-vcloud-master/worker/working_dir_90e11042-d06f-4dff-9972-272f42ccf3a9/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_90e11042-d06f-4dff-9972-272f42ccf3a9/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 d3b9fd7fe4ecc5142fd3f383ee42b040964600c5 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 05:32:52,065 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 05:32:52,066 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 05:32:52,076 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 05:32:52,076 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 05:32:52,077 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 05:32:52,078 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 05:32:52,079 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 05:32:52,081 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 05:32:52,081 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 05:32:52,082 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 05:32:52,082 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 05:32:52,083 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 05:32:52,084 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 05:32:52,085 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 05:32:52,085 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 05:32:52,087 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 05:32:52,088 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 05:32:52,089 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 05:32:52,091 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 05:32:52,092 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 05:32:52,093 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 05:32:52,094 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 05:32:52,094 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 05:32:52,095 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 05:32:52,095 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 05:32:52,096 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 05:32:52,097 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 05:32:52,098 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 05:32:52,099 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 05:32:52,099 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 05:32:52,099 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 05:32:52,100 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 05:32:52,100 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 05:32:52,100 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 05:32:52,101 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 05:32:52,101 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_90e11042-d06f-4dff-9972-272f42ccf3a9/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-10 05:32:52,113 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 05:32:52,113 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 05:32:52,114 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 05:32:52,114 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 05:32:52,114 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 05:32:52,114 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 05:32:52,114 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-10 05:32:52,115 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 05:32:52,115 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-10 05:32:52,115 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-10 05:32:52,115 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 05:32:52,116 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 05:32:52,116 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 05:32:52,116 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 05:32:52,116 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 05:32:52,117 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 05:32:52,117 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 05:32:52,117 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 05:32:52,117 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 05:32:52,118 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 05:32:52,118 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 05:32:52,118 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 05:32:52,118 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 05:32:52,118 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 05:32:52,118 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 05:32:52,118 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 05:32:52,119 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 05:32:52,119 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 05:32:52,119 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 05:32:52,119 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 05:32:52,119 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-10 05:32:52,119 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 05:32:52,119 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 05:32:52,120 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-10 05:32:52,120 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_90e11042-d06f-4dff-9972-272f42ccf3a9/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 -> d3b9fd7fe4ecc5142fd3f383ee42b040964600c5 [2018-11-10 05:32:52,151 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 05:32:52,161 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 05:32:52,164 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 05:32:52,165 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 05:32:52,166 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 05:32:52,166 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_90e11042-d06f-4dff-9972-272f42ccf3a9/bin-2019/utaipan/../../sv-benchmarks/c/float-benchs/interpolation2_true-unreach-call.c.v+cfa-reducer.c [2018-11-10 05:32:52,218 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_90e11042-d06f-4dff-9972-272f42ccf3a9/bin-2019/utaipan/data/4064dbd27/985a64c20ce94878804b70d3a6679643/FLAG9bebb941c [2018-11-10 05:32:52,555 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 05:32:52,555 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_90e11042-d06f-4dff-9972-272f42ccf3a9/sv-benchmarks/c/float-benchs/interpolation2_true-unreach-call.c.v+cfa-reducer.c [2018-11-10 05:32:52,560 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_90e11042-d06f-4dff-9972-272f42ccf3a9/bin-2019/utaipan/data/4064dbd27/985a64c20ce94878804b70d3a6679643/FLAG9bebb941c [2018-11-10 05:32:52,569 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_90e11042-d06f-4dff-9972-272f42ccf3a9/bin-2019/utaipan/data/4064dbd27/985a64c20ce94878804b70d3a6679643 [2018-11-10 05:32:52,571 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 05:32:52,572 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 05:32:52,573 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 05:32:52,573 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 05:32:52,576 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 05:32:52,576 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 05:32:52" (1/1) ... [2018-11-10 05:32:52,578 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a31769b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:32:52, skipping insertion in model container [2018-11-10 05:32:52,578 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 05:32:52" (1/1) ... [2018-11-10 05:32:52,584 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 05:32:52,598 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 05:32:52,706 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 05:32:52,709 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 05:32:52,729 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 05:32:52,742 INFO L193 MainTranslator]: Completed translation [2018-11-10 05:32:52,742 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:32:52 WrapperNode [2018-11-10 05:32:52,742 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 05:32:52,743 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 05:32:52,743 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 05:32:52,743 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 05:32:52,749 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:32:52" (1/1) ... [2018-11-10 05:32:52,757 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:32:52" (1/1) ... [2018-11-10 05:32:52,776 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 05:32:52,776 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 05:32:52,776 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 05:32:52,776 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 05:32:52,782 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:32:52" (1/1) ... [2018-11-10 05:32:52,782 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:32:52" (1/1) ... [2018-11-10 05:32:52,784 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:32:52" (1/1) ... [2018-11-10 05:32:52,784 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:32:52" (1/1) ... [2018-11-10 05:32:52,790 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:32:52" (1/1) ... [2018-11-10 05:32:52,792 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:32:52" (1/1) ... [2018-11-10 05:32:52,837 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:32:52" (1/1) ... [2018-11-10 05:32:52,839 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 05:32:52,840 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 05:32:52,840 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 05:32:52,840 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 05:32:52,841 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:32:52" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_90e11042-d06f-4dff-9972-272f42ccf3a9/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 05:32:52,883 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 05:32:52,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 05:32:52,883 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 05:32:52,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 05:32:52,883 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 05:32:52,883 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 05:32:53,188 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 05:32:53,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 05:32:53 BoogieIcfgContainer [2018-11-10 05:32:53,189 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 05:32:53,189 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 05:32:53,189 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 05:32:53,191 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 05:32:53,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 05:32:52" (1/3) ... [2018-11-10 05:32:53,192 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10e8e435 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 05:32:53, skipping insertion in model container [2018-11-10 05:32:53,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:32:52" (2/3) ... [2018-11-10 05:32:53,192 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10e8e435 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 05:32:53, skipping insertion in model container [2018-11-10 05:32:53,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 05:32:53" (3/3) ... [2018-11-10 05:32:53,193 INFO L112 eAbstractionObserver]: Analyzing ICFG interpolation2_true-unreach-call.c.v+cfa-reducer.c [2018-11-10 05:32:53,198 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 05:32:53,203 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 05:32:53,214 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 05:32:53,239 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 05:32:53,239 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 05:32:53,239 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 05:32:53,239 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 05:32:53,239 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 05:32:53,239 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 05:32:53,239 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 05:32:53,239 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 05:32:53,249 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2018-11-10 05:32:53,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-10 05:32:53,252 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 05:32:53,253 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 05:32:53,254 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 05:32:53,257 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:32:53,258 INFO L82 PathProgramCache]: Analyzing trace with hash 1189108249, now seen corresponding path program 1 times [2018-11-10 05:32:53,259 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 05:32:53,289 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:32:53,289 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 05:32:53,289 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:32:53,289 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 05:32:53,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:32:53,418 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 05:32:53,420 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 05:32:53,420 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-10 05:32:53,420 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 05:32:53,424 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-10 05:32:53,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-10 05:32:53,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-10 05:32:53,434 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 5 states. [2018-11-10 05:32:53,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 05:32:53,521 INFO L93 Difference]: Finished difference Result 35 states and 42 transitions. [2018-11-10 05:32:53,521 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-10 05:32:53,522 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2018-11-10 05:32:53,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 05:32:53,529 INFO L225 Difference]: With dead ends: 35 [2018-11-10 05:32:53,530 INFO L226 Difference]: Without dead ends: 19 [2018-11-10 05:32:53,532 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 05:32:53,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-11-10 05:32:53,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-11-10 05:32:53,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-11-10 05:32:53,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2018-11-10 05:32:53,562 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 16 [2018-11-10 05:32:53,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 05:32:53,563 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2018-11-10 05:32:53,563 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-10 05:32:53,563 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2018-11-10 05:32:53,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-10 05:32:53,563 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 05:32:53,564 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 05:32:53,564 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 05:32:53,564 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:32:53,564 INFO L82 PathProgramCache]: Analyzing trace with hash 1204212286, now seen corresponding path program 1 times [2018-11-10 05:32:53,564 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 05:32:53,565 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:32:53,565 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 05:32:53,565 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:32:53,565 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 05:32:53,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:32:53,618 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 05:32:53,618 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 05:32:53,619 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-10 05:32:53,619 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 05:32:53,620 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 05:32:53,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 05:32:53,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 05:32:53,620 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand 3 states. [2018-11-10 05:32:53,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 05:32:53,651 INFO L93 Difference]: Finished difference Result 37 states and 41 transitions. [2018-11-10 05:32:53,651 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 05:32:53,651 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2018-11-10 05:32:53,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 05:32:53,652 INFO L225 Difference]: With dead ends: 37 [2018-11-10 05:32:53,652 INFO L226 Difference]: Without dead ends: 29 [2018-11-10 05:32:53,653 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 05:32:53,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2018-11-10 05:32:53,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 20. [2018-11-10 05:32:53,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-11-10 05:32:53,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2018-11-10 05:32:53,657 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 16 [2018-11-10 05:32:53,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 05:32:53,657 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2018-11-10 05:32:53,657 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 05:32:53,657 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2018-11-10 05:32:53,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-10 05:32:53,658 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 05:32:53,658 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 05:32:53,658 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 05:32:53,658 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:32:53,658 INFO L82 PathProgramCache]: Analyzing trace with hash -900055575, now seen corresponding path program 1 times [2018-11-10 05:32:53,659 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 05:32:53,659 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:32:53,659 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 05:32:53,659 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:32:53,660 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 05:32:53,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 05:32:53,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 05:32:53,724 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 05:32:53,737 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 05:32:53,737 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 05:32:53,738 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 05:32:53,738 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 05:32:53,738 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 05:32:53,739 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 05:32:53,739 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 05:32:53,739 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 05:32:53,740 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 05:32:53,740 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 05:32:53,741 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 05:32:53,741 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 05:32:53,741 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 05:32:53,742 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 05:32:53,742 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 05:32:53,743 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 05:32:53,743 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 05:32:53,743 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 05:32:53,744 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 05:32:53,744 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 05:32:53,744 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 05:32:53,745 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 05:32:53,745 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 05:32:53,745 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-11-10 05:32:53,764 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 05:32:53 BoogieIcfgContainer [2018-11-10 05:32:53,764 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 05:32:53,765 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 05:32:53,765 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 05:32:53,765 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 05:32:53,766 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 05:32:53" (3/4) ... [2018-11-10 05:32:53,769 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-10 05:32:53,769 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 05:32:53,770 INFO L168 Benchmark]: Toolchain (without parser) took 1198.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 175.1 MB). Free memory was 959.1 MB in the beginning and 1.1 GB in the end (delta: -107.9 MB). Peak memory consumption was 67.2 MB. Max. memory is 11.5 GB. [2018-11-10 05:32:53,771 INFO L168 Benchmark]: CDTParser took 0.18 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 05:32:53,771 INFO L168 Benchmark]: CACSL2BoogieTranslator took 169.85 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.2 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. [2018-11-10 05:32:53,772 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.13 ms. Allocated memory is still 1.0 GB. Free memory was 948.2 MB in the beginning and 945.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 05:32:53,772 INFO L168 Benchmark]: Boogie Preprocessor took 63.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 175.1 MB). Free memory was 945.5 MB in the beginning and 1.2 GB in the end (delta: -223.4 MB). Peak memory consumption was 19.4 MB. Max. memory is 11.5 GB. [2018-11-10 05:32:53,773 INFO L168 Benchmark]: RCFGBuilder took 348.88 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 44.2 MB). Peak memory consumption was 44.2 MB. Max. memory is 11.5 GB. [2018-11-10 05:32:53,773 INFO L168 Benchmark]: TraceAbstraction took 575.39 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: 54.4 MB). Peak memory consumption was 54.4 MB. Max. memory is 11.5 GB. [2018-11-10 05:32:53,774 INFO L168 Benchmark]: Witness Printer took 4.38 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: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-11-10 05:32:53,777 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 169.85 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.2 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 33.13 ms. Allocated memory is still 1.0 GB. Free memory was 948.2 MB in the beginning and 945.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 63.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 175.1 MB). Free memory was 945.5 MB in the beginning and 1.2 GB in the end (delta: -223.4 MB). Peak memory consumption was 19.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 348.88 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 44.2 MB). Peak memory consumption was 44.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 575.39 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: 54.4 MB). Peak memory consumption was 54.4 MB. Max. memory is 11.5 GB. * Witness Printer took 4.38 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: 3.3 MB). Peak memory consumption was 3.3 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 30, 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_129; VAL [\old(__return_129)=35, \old(__return_main)=46, __return_129=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_129)=0, __return_129=0, __return_main=0] [L24] COND TRUE main____CPAchecker_TMP_0 != 0 [L26] main__i = 0 VAL [\old(__return_129)=0, __return_129=0, __return_main=0] [L28] COND TRUE main__i < 5UL [L30] CALL, EXPR main__max[main__i] [L30] RET, EXPR main__max[main__i] [L30] 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_129)=0, __return_129=0, __return_main=0] [L35] COND FALSE !(main__z >= -10.0) VAL [\old(__return_129)=0, __return_129=0, __return_main=0] [L61] main____CPAchecker_TMP_1 = 0 VAL [\old(__return_129)=0, __return_129=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_129)=0, __return_129=0, __return_main=0] [L46] COND TRUE __VERIFIER_assert__cond == 0 VAL [\old(__return_129)=0, __return_129=0, __return_main=0] [L48] __VERIFIER_error() VAL [\old(__return_129)=0, __return_129=0, __return_main=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 23 locations, 1 error locations. UNSAFE Result, 0.5s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 45 SDtfs, 35 SDslu, 77 SDs, 0 SdLazy, 19 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred 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, 2 MinimizatonAttempts, 9 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 600 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 05:32:55,172 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 05:32:55,173 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 05:32:55,182 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 05:32:55,182 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 05:32:55,183 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 05:32:55,184 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 05:32:55,185 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 05:32:55,186 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 05:32:55,187 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 05:32:55,188 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 05:32:55,188 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 05:32:55,189 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 05:32:55,190 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 05:32:55,191 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 05:32:55,191 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 05:32:55,192 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 05:32:55,193 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 05:32:55,196 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 05:32:55,197 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 05:32:55,198 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 05:32:55,199 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 05:32:55,201 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 05:32:55,201 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 05:32:55,202 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 05:32:55,203 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 05:32:55,204 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 05:32:55,204 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 05:32:55,205 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 05:32:55,207 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 05:32:55,207 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 05:32:55,207 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 05:32:55,208 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 05:32:55,208 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 05:32:55,209 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 05:32:55,209 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 05:32:55,209 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_90e11042-d06f-4dff-9972-272f42ccf3a9/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-10 05:32:55,221 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 05:32:55,221 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 05:32:55,222 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 05:32:55,222 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 05:32:55,222 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 05:32:55,222 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 05:32:55,222 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 05:32:55,222 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 05:32:55,223 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 05:32:55,223 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 05:32:55,223 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 05:32:55,223 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 05:32:55,224 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 05:32:55,224 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 05:32:55,224 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 05:32:55,224 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-10 05:32:55,224 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-10 05:32:55,224 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 05:32:55,224 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 05:32:55,224 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 05:32:55,225 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 05:32:55,225 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 05:32:55,225 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 05:32:55,225 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 05:32:55,225 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 05:32:55,225 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 05:32:55,225 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 05:32:55,225 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 05:32:55,226 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-10 05:32:55,226 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 05:32:55,227 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-10 05:32:55,227 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-10 05:32:55,228 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_90e11042-d06f-4dff-9972-272f42ccf3a9/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 -> d3b9fd7fe4ecc5142fd3f383ee42b040964600c5 [2018-11-10 05:32:55,257 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 05:32:55,265 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 05:32:55,267 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 05:32:55,268 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 05:32:55,268 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 05:32:55,269 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_90e11042-d06f-4dff-9972-272f42ccf3a9/bin-2019/utaipan/../../sv-benchmarks/c/float-benchs/interpolation2_true-unreach-call.c.v+cfa-reducer.c [2018-11-10 05:32:55,307 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_90e11042-d06f-4dff-9972-272f42ccf3a9/bin-2019/utaipan/data/426f353ab/ade47235b1d44ae8a646f348c6e80ed6/FLAG69e0520cf [2018-11-10 05:32:55,632 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 05:32:55,633 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_90e11042-d06f-4dff-9972-272f42ccf3a9/sv-benchmarks/c/float-benchs/interpolation2_true-unreach-call.c.v+cfa-reducer.c [2018-11-10 05:32:55,636 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_90e11042-d06f-4dff-9972-272f42ccf3a9/bin-2019/utaipan/data/426f353ab/ade47235b1d44ae8a646f348c6e80ed6/FLAG69e0520cf [2018-11-10 05:32:55,645 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_90e11042-d06f-4dff-9972-272f42ccf3a9/bin-2019/utaipan/data/426f353ab/ade47235b1d44ae8a646f348c6e80ed6 [2018-11-10 05:32:55,646 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 05:32:55,647 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 05:32:55,648 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 05:32:55,648 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 05:32:55,650 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 05:32:55,650 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 05:32:55" (1/1) ... [2018-11-10 05:32:55,652 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78425951 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:32:55, skipping insertion in model container [2018-11-10 05:32:55,652 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 05:32:55" (1/1) ... [2018-11-10 05:32:55,658 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 05:32:55,672 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 05:32:55,785 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 05:32:55,788 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 05:32:55,819 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 05:32:55,838 INFO L193 MainTranslator]: Completed translation [2018-11-10 05:32:55,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:32:55 WrapperNode [2018-11-10 05:32:55,839 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 05:32:55,839 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 05:32:55,840 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 05:32:55,840 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 05:32:55,845 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:32:55" (1/1) ... [2018-11-10 05:32:55,854 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:32:55" (1/1) ... [2018-11-10 05:32:55,883 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 05:32:55,883 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 05:32:55,884 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 05:32:55,884 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 05:32:55,890 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:32:55" (1/1) ... [2018-11-10 05:32:55,890 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:32:55" (1/1) ... [2018-11-10 05:32:55,895 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:32:55" (1/1) ... [2018-11-10 05:32:55,896 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:32:55" (1/1) ... [2018-11-10 05:32:55,907 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:32:55" (1/1) ... [2018-11-10 05:32:55,910 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:32:55" (1/1) ... [2018-11-10 05:32:55,912 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:32:55" (1/1) ... [2018-11-10 05:32:55,917 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 05:32:55,917 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 05:32:55,917 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 05:32:55,917 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 05:32:55,919 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:32:55" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_90e11042-d06f-4dff-9972-272f42ccf3a9/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 05:32:56,000 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 05:32:56,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 05:32:56,000 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 05:32:56,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 05:32:56,000 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 05:32:56,000 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 05:32:56,484 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-10 05:32:58,812 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 05:32:58,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 05:32:58 BoogieIcfgContainer [2018-11-10 05:32:58,812 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 05:32:58,813 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 05:32:58,813 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 05:32:58,816 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 05:32:58,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 05:32:55" (1/3) ... [2018-11-10 05:32:58,816 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@102f39ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 05:32:58, skipping insertion in model container [2018-11-10 05:32:58,817 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:32:55" (2/3) ... [2018-11-10 05:32:58,817 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@102f39ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 05:32:58, skipping insertion in model container [2018-11-10 05:32:58,817 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 05:32:58" (3/3) ... [2018-11-10 05:32:58,820 INFO L112 eAbstractionObserver]: Analyzing ICFG interpolation2_true-unreach-call.c.v+cfa-reducer.c [2018-11-10 05:32:58,827 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 05:32:58,834 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 05:32:58,846 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 05:32:58,862 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 05:32:58,862 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 05:32:58,862 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 05:32:58,863 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 05:32:58,863 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 05:32:58,863 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 05:32:58,863 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 05:32:58,863 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 05:32:58,863 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 05:32:58,874 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2018-11-10 05:32:58,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-10 05:32:58,878 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 05:32:58,879 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 05:32:58,880 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 05:32:58,883 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:32:58,884 INFO L82 PathProgramCache]: Analyzing trace with hash 1189108249, now seen corresponding path program 1 times [2018-11-10 05:32:58,887 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 05:32:58,887 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_90e11042-d06f-4dff-9972-272f42ccf3a9/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 05:32:58,892 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 05:32:59,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:32:59,303 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 05:32:59,329 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 05:32:59,329 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 05:32:59,342 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 05:32:59,342 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-10 05:32:59,344 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 05:32:59,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 05:32:59,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 05:32:59,354 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 3 states. [2018-11-10 05:33:02,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 05:33:02,723 INFO L93 Difference]: Finished difference Result 47 states and 61 transitions. [2018-11-10 05:33:02,776 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 05:33:02,777 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2018-11-10 05:33:02,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 05:33:02,783 INFO L225 Difference]: With dead ends: 47 [2018-11-10 05:33:02,784 INFO L226 Difference]: Without dead ends: 29 [2018-11-10 05:33:02,786 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 05:33:02,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2018-11-10 05:33:02,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 20. [2018-11-10 05:33:02,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-11-10 05:33:02,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2018-11-10 05:33:02,819 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 16 [2018-11-10 05:33:02,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 05:33:02,819 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2018-11-10 05:33:02,819 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 05:33:02,819 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2018-11-10 05:33:02,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-10 05:33:02,820 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 05:33:02,820 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 05:33:02,821 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 05:33:02,821 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:33:02,821 INFO L82 PathProgramCache]: Analyzing trace with hash -915159612, now seen corresponding path program 1 times [2018-11-10 05:33:02,822 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 05:33:02,822 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_90e11042-d06f-4dff-9972-272f42ccf3a9/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 05:33:02,832 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 05:33:03,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:33:03,235 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 05:33:03,247 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 05:33:03,247 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-10 05:33:03,258 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 05:33:03,258 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-10 05:33:03,259 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 05:33:03,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 05:33:03,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 05:33:03,260 INFO L87 Difference]: Start difference. First operand 20 states and 23 transitions. Second operand 4 states. [2018-11-10 05:33:04,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 05:33:04,740 INFO L93 Difference]: Finished difference Result 24 states and 26 transitions. [2018-11-10 05:33:04,741 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-10 05:33:04,742 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2018-11-10 05:33:04,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 05:33:04,742 INFO L225 Difference]: With dead ends: 24 [2018-11-10 05:33:04,743 INFO L226 Difference]: Without dead ends: 20 [2018-11-10 05:33:04,743 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 05:33:04,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2018-11-10 05:33:04,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2018-11-10 05:33:04,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-11-10 05:33:04,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2018-11-10 05:33:04,748 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 17 [2018-11-10 05:33:04,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 05:33:04,748 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2018-11-10 05:33:04,748 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 05:33:04,748 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2018-11-10 05:33:04,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-10 05:33:04,749 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 05:33:04,749 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 05:33:04,749 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 05:33:04,749 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:33:04,750 INFO L82 PathProgramCache]: Analyzing trace with hash -900055575, now seen corresponding path program 1 times [2018-11-10 05:33:04,750 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-10 05:33:04,750 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_90e11042-d06f-4dff-9972-272f42ccf3a9/bin-2019/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-11-10 05:33:04,764 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 05:33:05,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:33:05,710 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 05:33:34,597 WARN L179 SmtUtils]: Spent 28.86 s on a formula simplification. DAG size of input: 166 DAG size of output: 142 [2018-11-10 05:33:34,840 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:33:34,841 INFO L303 Elim1Store]: Index analysis took 236 ms [2018-11-10 05:33:34,844 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 05:33:35,336 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:33:35,337 INFO L682 Elim1Store]: detected equality via solver [2018-11-10 05:33:35,338 INFO L303 Elim1Store]: Index analysis took 469 ms [2018-11-10 05:33:35,339 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 05:33:36,069 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:33:36,547 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:33:36,829 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:33:36,955 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:33:36,956 INFO L303 Elim1Store]: Index analysis took 1572 ms [2018-11-10 05:33:36,958 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 05:33:36,958 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-10 05:33:42,630 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 05:33:45,731 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 05:33:53,649 INFO L303 Elim1Store]: Index analysis took 1070 ms [2018-11-10 05:33:53,650 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 05:34:05,993 WARN L179 SmtUtils]: Spent 12.34 s on a formula simplification that was a NOOP. DAG size: 102 [2018-11-10 05:34:06,106 INFO L303 Elim1Store]: Index analysis took 112 ms [2018-11-10 05:34:06,107 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 05:34:06,360 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:34:06,500 INFO L303 Elim1Store]: Index analysis took 391 ms [2018-11-10 05:34:06,501 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 05:34:06,971 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:34:07,124 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:34:07,268 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:34:07,926 INFO L303 Elim1Store]: Index analysis took 1422 ms [2018-11-10 05:34:07,927 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 05:34:08,197 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:34:08,310 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:34:08,453 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:34:08,615 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:34:08,786 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:34:08,877 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:34:10,730 INFO L303 Elim1Store]: Index analysis took 2800 ms [2018-11-10 05:34:10,731 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 05:34:11,067 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:34:11,206 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:34:11,353 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:34:11,525 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:34:11,691 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:34:11,880 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:34:11,970 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:34:12,098 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:34:12,246 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:34:12,526 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:34:14,942 INFO L303 Elim1Store]: Index analysis took 4204 ms [2018-11-10 05:34:14,943 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 05:34:14,944 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-11-10 05:34:18,080 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 05:34:20,276 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 05:34:22,488 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 05:34:24,194 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 05:34:28,946 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:34:28,947 INFO L303 Elim1Store]: Index analysis took 1614 ms [2018-11-10 05:34:28,948 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 05:34:42,378 WARN L179 SmtUtils]: Spent 13.43 s on a formula simplification. DAG size of input: 105 DAG size of output: 103 [2018-11-10 05:34:42,457 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 05:34:42,567 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:34:42,651 INFO L303 Elim1Store]: Index analysis took 191 ms [2018-11-10 05:34:42,652 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 05:34:42,747 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:34:42,846 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:34:42,888 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:34:43,097 INFO L303 Elim1Store]: Index analysis took 442 ms [2018-11-10 05:34:43,098 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 05:34:43,202 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:34:43,252 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:34:43,335 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:34:43,372 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:34:43,405 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:34:43,455 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:34:43,906 INFO L303 Elim1Store]: Index analysis took 805 ms [2018-11-10 05:34:43,907 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 05:34:44,020 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:34:44,062 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:34:44,110 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:34:44,153 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:34:44,212 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:34:44,246 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:34:44,283 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:34:44,314 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:34:44,352 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:34:44,416 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:34:45,219 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:34:45,220 INFO L303 Elim1Store]: Index analysis took 1308 ms [2018-11-10 05:34:45,221 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 05:34:45,222 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-11-10 05:34:46,074 INFO L267 ElimStorePlain]: Start of recursive call 15: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 05:34:46,628 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 05:34:47,201 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 05:34:47,791 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 05:34:50,310 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:34:50,379 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:34:50,769 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:34:50,770 INFO L303 Elim1Store]: Index analysis took 1155 ms [2018-11-10 05:34:50,771 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 05:34:50,807 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 05:34:50,858 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:34:50,900 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 05:34:50,965 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:34:50,972 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:34:50,981 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:34:51,160 INFO L303 Elim1Store]: Index analysis took 258 ms [2018-11-10 05:34:51,161 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 05:34:51,256 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:34:51,280 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:34:51,308 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:34:51,345 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:34:51,374 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:34:51,410 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:34:51,693 INFO L303 Elim1Store]: Index analysis took 529 ms [2018-11-10 05:34:51,694 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 05:34:51,815 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:34:51,861 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:34:51,901 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:34:51,956 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:34:52,007 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:34:52,056 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:34:52,093 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:34:52,154 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:34:52,213 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:34:52,272 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:34:52,911 INFO L303 Elim1Store]: Index analysis took 1211 ms [2018-11-10 05:34:52,912 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 05:34:52,913 INFO L267 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2018-11-10 05:34:53,653 INFO L267 ElimStorePlain]: Start of recursive call 21: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 05:34:54,093 INFO L267 ElimStorePlain]: Start of recursive call 20: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 05:34:54,540 INFO L267 ElimStorePlain]: Start of recursive call 19: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 05:34:55,005 INFO L267 ElimStorePlain]: Start of recursive call 18: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 05:34:56,512 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:34:56,623 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:34:56,658 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:34:56,776 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:34:56,831 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:34:57,035 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:34:57,037 INFO L303 Elim1Store]: Index analysis took 609 ms [2018-11-10 05:34:57,038 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 05:34:57,069 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 05:34:57,134 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:34:57,176 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 05:34:57,245 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:34:57,262 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:34:57,276 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:34:57,350 INFO L303 Elim1Store]: Index analysis took 172 ms [2018-11-10 05:34:57,351 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 05:34:57,467 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:34:57,506 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:34:57,535 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:34:57,583 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:34:57,619 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:34:57,660 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:34:58,239 INFO L303 Elim1Store]: Index analysis took 884 ms [2018-11-10 05:34:58,240 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 05:34:58,277 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:34:58,282 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:34:58,286 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:34:58,291 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:34:58,296 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:34:58,300 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:34:58,304 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:34:58,308 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:34:58,313 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:34:58,317 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:34:58,391 INFO L303 Elim1Store]: Index analysis took 147 ms [2018-11-10 05:34:58,392 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 70 treesize of output 140 [2018-11-10 05:34:58,392 INFO L267 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2018-11-10 05:34:58,512 INFO L267 ElimStorePlain]: Start of recursive call 27: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 05:34:58,606 INFO L267 ElimStorePlain]: Start of recursive call 26: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 05:34:58,678 INFO L267 ElimStorePlain]: Start of recursive call 25: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 05:34:58,731 INFO L267 ElimStorePlain]: Start of recursive call 24: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 05:34:58,914 INFO L267 ElimStorePlain]: Start of recursive call 23: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-10 05:34:59,053 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 05:34:59,189 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 05:34:59,358 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 05:34:59,757 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 05:34:59,758 INFO L202 ElimStorePlain]: Needed 28 recursive calls to eliminate 22 variables, input treesize:545, output treesize:155 [2018-11-10 05:35:00,370 WARN L179 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 74 [2018-11-10 05:35:01,059 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:35:01,094 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:35:01,128 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:35:01,161 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:35:01,194 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:35:01,227 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:35:01,261 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:35:01,295 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:35:01,329 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:35:01,362 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:35:01,396 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:35:01,430 INFO L700 Elim1Store]: detected not equals via solver [2018-11-10 05:35:01,461 INFO L303 Elim1Store]: Index analysis took 1085 ms [2018-11-10 05:35:01,462 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 266 treesize of output 242 [2018-11-10 05:35:04,542 INFO L303 Elim1Store]: Index analysis took 3076 ms [2018-11-10 05:35:11,055 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 05:35:11,056 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2018-11-10 05:35:11,143 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 05:37:22,507 WARN L522 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2018-11-10 05:37:22,507 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 05:37:22,510 INFO L168 Benchmark]: Toolchain (without parser) took 266862.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 206.6 MB). Free memory was 950.6 MB in the beginning and 962.3 MB in the end (delta: -11.8 MB). Peak memory consumption was 194.8 MB. Max. memory is 11.5 GB. [2018-11-10 05:37:22,510 INFO L168 Benchmark]: CDTParser took 0.13 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 05:37:22,510 INFO L168 Benchmark]: CACSL2BoogieTranslator took 191.32 ms. Allocated memory is still 1.0 GB. Free memory was 950.6 MB in the beginning and 933.1 MB in the end (delta: 17.4 MB). Peak memory consumption was 17.4 MB. Max. memory is 11.5 GB. [2018-11-10 05:37:22,511 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.71 ms. Allocated memory is still 1.0 GB. Free memory is still 933.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 05:37:22,511 INFO L168 Benchmark]: Boogie Preprocessor took 33.38 ms. Allocated memory is still 1.0 GB. Free memory was 933.1 MB in the beginning and 927.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-10 05:37:22,511 INFO L168 Benchmark]: RCFGBuilder took 2895.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 927.7 MB in the beginning and 1.1 GB in the end (delta: -163.5 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. [2018-11-10 05:37:22,512 INFO L168 Benchmark]: TraceAbstraction took 263696.48 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 60.3 MB). Free memory was 1.1 GB in the beginning and 962.3 MB in the end (delta: 128.9 MB). Peak memory consumption was 189.2 MB. Max. memory is 11.5 GB. [2018-11-10 05:37:22,514 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 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 191.32 ms. Allocated memory is still 1.0 GB. Free memory was 950.6 MB in the beginning and 933.1 MB in the end (delta: 17.4 MB). Peak memory consumption was 17.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 43.71 ms. Allocated memory is still 1.0 GB. Free memory is still 933.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 33.38 ms. Allocated memory is still 1.0 GB. Free memory was 933.1 MB in the beginning and 927.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 2895.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 927.7 MB in the beginning and 1.1 GB in the end (delta: -163.5 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 263696.48 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 60.3 MB). Free memory was 1.1 GB in the beginning and 962.3 MB in the end (delta: 128.9 MB). Peak memory consumption was 189.2 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...