./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-benchs/inv_sqrt_Quake_true-unreach-call_true-termination.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_20e5a639-d67f-4801-ba55-462da3a32196/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_20e5a639-d67f-4801-ba55-462da3a32196/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_20e5a639-d67f-4801-ba55-462da3a32196/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_20e5a639-d67f-4801-ba55-462da3a32196/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/inv_sqrt_Quake_true-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_20e5a639-d67f-4801-ba55-462da3a32196/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_20e5a639-d67f-4801-ba55-462da3a32196/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 e0f1bd2a42710b6c2eba96cb622bd79ffd05436a .............................................................................................................................................................................................................................................................................................. 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_20e5a639-d67f-4801-ba55-462da3a32196/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_20e5a639-d67f-4801-ba55-462da3a32196/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_20e5a639-d67f-4801-ba55-462da3a32196/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_20e5a639-d67f-4801-ba55-462da3a32196/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/inv_sqrt_Quake_true-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_20e5a639-d67f-4801-ba55-462da3a32196/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_20e5a639-d67f-4801-ba55-462da3a32196/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 e0f1bd2a42710b6c2eba96cb622bd79ffd05436a ................................................................................................................................................................................................................................................................................................. 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. stderr output: (error "out of memory") --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-26 22:52:36,937 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 22:52:36,938 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 22:52:36,947 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 22:52:36,947 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 22:52:36,948 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 22:52:36,949 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 22:52:36,950 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 22:52:36,951 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 22:52:36,952 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 22:52:36,953 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 22:52:36,953 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 22:52:36,954 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 22:52:36,954 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 22:52:36,955 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 22:52:36,956 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 22:52:36,956 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 22:52:36,958 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 22:52:36,959 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 22:52:36,968 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 22:52:36,969 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 22:52:36,970 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 22:52:36,972 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 22:52:36,972 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 22:52:36,972 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 22:52:36,973 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 22:52:36,974 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 22:52:36,975 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 22:52:36,975 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 22:52:36,976 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 22:52:36,976 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 22:52:36,977 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 22:52:36,977 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 22:52:36,977 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 22:52:36,978 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 22:52:36,979 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 22:52:36,979 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_20e5a639-d67f-4801-ba55-462da3a32196/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-10-26 22:52:37,001 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 22:52:37,001 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 22:52:37,002 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 22:52:37,002 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-26 22:52:37,002 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-26 22:52:37,002 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-26 22:52:37,003 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-26 22:52:37,003 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-26 22:52:37,003 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-26 22:52:37,003 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-26 22:52:37,003 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-26 22:52:37,004 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 22:52:37,004 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 22:52:37,004 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 22:52:37,004 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 22:52:37,004 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 22:52:37,004 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 22:52:37,005 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 22:52:37,005 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 22:52:37,005 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 22:52:37,005 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 22:52:37,005 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 22:52:37,005 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 22:52:37,005 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 22:52:37,005 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 22:52:37,006 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 22:52:37,006 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 22:52:37,006 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 22:52:37,006 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 22:52:37,006 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 22:52:37,006 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-26 22:52:37,006 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 22:52:37,007 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 22:52:37,007 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-26 22:52:37,007 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_20e5a639-d67f-4801-ba55-462da3a32196/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 -> e0f1bd2a42710b6c2eba96cb622bd79ffd05436a [2018-10-26 22:52:37,037 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 22:52:37,050 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 22:52:37,054 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 22:52:37,056 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 22:52:37,056 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 22:52:37,057 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_20e5a639-d67f-4801-ba55-462da3a32196/bin-2019/utaipan/../../sv-benchmarks/c/float-benchs/inv_sqrt_Quake_true-unreach-call_true-termination.c [2018-10-26 22:52:37,113 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_20e5a639-d67f-4801-ba55-462da3a32196/bin-2019/utaipan/data/bf1b93855/8dbcbfa7b6db4fefa12fef1b8d5ca11c/FLAGb1a861121 [2018-10-26 22:52:37,488 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 22:52:37,488 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_20e5a639-d67f-4801-ba55-462da3a32196/sv-benchmarks/c/float-benchs/inv_sqrt_Quake_true-unreach-call_true-termination.c [2018-10-26 22:52:37,494 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_20e5a639-d67f-4801-ba55-462da3a32196/bin-2019/utaipan/data/bf1b93855/8dbcbfa7b6db4fefa12fef1b8d5ca11c/FLAGb1a861121 [2018-10-26 22:52:37,505 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_20e5a639-d67f-4801-ba55-462da3a32196/bin-2019/utaipan/data/bf1b93855/8dbcbfa7b6db4fefa12fef1b8d5ca11c [2018-10-26 22:52:37,512 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 22:52:37,513 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-26 22:52:37,514 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 22:52:37,514 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 22:52:37,518 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 22:52:37,518 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 10:52:37" (1/1) ... [2018-10-26 22:52:37,521 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@162e0c8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:52:37, skipping insertion in model container [2018-10-26 22:52:37,521 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 10:52:37" (1/1) ... [2018-10-26 22:52:37,529 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 22:52:37,544 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 22:52:37,670 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 22:52:37,673 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 22:52:37,689 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 22:52:37,707 INFO L193 MainTranslator]: Completed translation [2018-10-26 22:52:37,707 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:52:37 WrapperNode [2018-10-26 22:52:37,707 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 22:52:37,708 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 22:52:37,708 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 22:52:37,708 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 22:52:37,716 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:52:37" (1/1) ... [2018-10-26 22:52:37,724 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:52:37" (1/1) ... [2018-10-26 22:52:37,742 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 22:52:37,742 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 22:52:37,742 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 22:52:37,742 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 22:52:37,751 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:52:37" (1/1) ... [2018-10-26 22:52:37,751 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:52:37" (1/1) ... [2018-10-26 22:52:37,753 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:52:37" (1/1) ... [2018-10-26 22:52:37,753 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:52:37" (1/1) ... [2018-10-26 22:52:37,758 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:52:37" (1/1) ... [2018-10-26 22:52:37,760 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:52:37" (1/1) ... [2018-10-26 22:52:37,761 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:52:37" (1/1) ... [2018-10-26 22:52:37,763 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 22:52:37,763 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 22:52:37,763 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 22:52:37,763 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 22:52:37,765 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:52:37" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_20e5a639-d67f-4801-ba55-462da3a32196/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 22:52:37,886 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-26 22:52:37,887 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-26 22:52:37,887 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-26 22:52:37,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-26 22:52:37,887 INFO L130 BoogieDeclarations]: Found specification of procedure InvSqrt [2018-10-26 22:52:37,887 INFO L138 BoogieDeclarations]: Found implementation of procedure InvSqrt [2018-10-26 22:52:37,887 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 22:52:37,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 22:52:37,887 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-10-26 22:52:37,888 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-10-26 22:52:38,236 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 22:52:38,236 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:52:38 BoogieIcfgContainer [2018-10-26 22:52:38,237 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 22:52:38,237 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 22:52:38,238 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 22:52:38,245 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 22:52:38,245 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 10:52:37" (1/3) ... [2018-10-26 22:52:38,246 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@488d5e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 10:52:38, skipping insertion in model container [2018-10-26 22:52:38,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:52:37" (2/3) ... [2018-10-26 22:52:38,246 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@488d5e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 10:52:38, skipping insertion in model container [2018-10-26 22:52:38,247 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:52:38" (3/3) ... [2018-10-26 22:52:38,252 INFO L112 eAbstractionObserver]: Analyzing ICFG inv_sqrt_Quake_true-unreach-call_true-termination.c [2018-10-26 22:52:38,261 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 22:52:38,273 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 22:52:38,290 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 22:52:38,327 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 22:52:38,327 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 22:52:38,328 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 22:52:38,328 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 22:52:38,328 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 22:52:38,328 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 22:52:38,328 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 22:52:38,329 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 22:52:38,348 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2018-10-26 22:52:38,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-10-26 22:52:38,358 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:52:38,359 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:52:38,365 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:52:38,370 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:52:38,372 INFO L82 PathProgramCache]: Analyzing trace with hash -1573477556, now seen corresponding path program 1 times [2018-10-26 22:52:38,374 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 22:52:38,417 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:52:38,417 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:52:38,418 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:52:38,418 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 22:52:38,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 22:52:38,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 22:52:38,558 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-10-26 22:52:38,570 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 22:52:38,571 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 22:52:38,571 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 22:52:38,571 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 22:52:38,572 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 22:52:38,572 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-26 22:52:38,573 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 22:52:38,573 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-26 22:52:38,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 10:52:38 BoogieIcfgContainer [2018-10-26 22:52:38,588 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 22:52:38,588 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 22:52:38,589 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 22:52:38,589 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 22:52:38,589 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:52:38" (3/4) ... [2018-10-26 22:52:38,593 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-10-26 22:52:38,594 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 22:52:38,594 INFO L168 Benchmark]: Toolchain (without parser) took 1081.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 960.3 MB in the beginning and 1.1 GB in the end (delta: -147.3 MB). Peak memory consumption was 51.8 kB. Max. memory is 11.5 GB. [2018-10-26 22:52:38,596 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 22:52:38,597 INFO L168 Benchmark]: CACSL2BoogieTranslator took 193.14 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 949.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-10-26 22:52:38,597 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.10 ms. Allocated memory is still 1.0 GB. Free memory was 949.6 MB in the beginning and 946.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-26 22:52:38,598 INFO L168 Benchmark]: Boogie Preprocessor took 20.83 ms. Allocated memory is still 1.0 GB. Free memory is still 946.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 22:52:38,599 INFO L168 Benchmark]: RCFGBuilder took 473.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -182.2 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. [2018-10-26 22:52:38,599 INFO L168 Benchmark]: TraceAbstraction took 350.34 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: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2018-10-26 22:52:38,601 INFO L168 Benchmark]: Witness Printer took 5.23 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 22:52:38,604 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 193.14 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 949.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 34.10 ms. Allocated memory is still 1.0 GB. Free memory was 949.6 MB in the beginning and 946.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.83 ms. Allocated memory is still 1.0 GB. Free memory is still 946.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 473.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -182.2 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 350.34 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: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * Witness Printer took 5.23 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. 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.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ 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.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 8]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 43, overapproximation of someBinaryArithmeticFLOAToperation at line 17. Possible FailurePath: [L40] float a,r; [L42] a = __VERIFIER_nondet_float() [L45] CALL, EXPR InvSqrt(a) [L17] float xhalf = 0.5f*x; [L18] CALL union float_int i; [L18] RET union float_int i; [L19] CALL i.f = x [L19] RET i.f = x [L20] CALL, EXPR i.i [L20] RET, EXPR i.i [L20] CALL i.i = 0x5f3759df - (i.i>>1) [L20] RET i.i = 0x5f3759df - (i.i>>1) [L21] CALL, EXPR i.f [L21] RET, EXPR i.f [L21] x = i.f [L21] RET x = i.f [L22] x = x*(1.5f-xhalf*x*x) [L23] return x; [L23] RET return x; [L45] EXPR InvSqrt(a) VAL [a=1597463011, InvSqrt(a)=1597463012] [L45] r = InvSqrt(a) [L47] CALL __VERIFIER_assert(r >= 0.f && r <= 10.) VAL [\old(cond)=0] [L8] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L8] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 23 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 [2018-10-26 22:52:40,530 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 22:52:40,531 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 22:52:40,541 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 22:52:40,541 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 22:52:40,542 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 22:52:40,543 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 22:52:40,544 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 22:52:40,546 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 22:52:40,546 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 22:52:40,547 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 22:52:40,547 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 22:52:40,548 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 22:52:40,549 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 22:52:40,550 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 22:52:40,551 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 22:52:40,551 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 22:52:40,553 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 22:52:40,561 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 22:52:40,562 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 22:52:40,563 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 22:52:40,565 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 22:52:40,569 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 22:52:40,569 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 22:52:40,569 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 22:52:40,570 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 22:52:40,571 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 22:52:40,571 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 22:52:40,572 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 22:52:40,573 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 22:52:40,573 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 22:52:40,574 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 22:52:40,574 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 22:52:40,574 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 22:52:40,575 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 22:52:40,575 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 22:52:40,576 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_20e5a639-d67f-4801-ba55-462da3a32196/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-10-26 22:52:40,597 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 22:52:40,597 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 22:52:40,598 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 22:52:40,598 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-26 22:52:40,598 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-26 22:52:40,599 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-26 22:52:40,599 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-26 22:52:40,599 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-26 22:52:40,599 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 22:52:40,600 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 22:52:40,602 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 22:52:40,602 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 22:52:40,602 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 22:52:40,602 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 22:52:40,602 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 22:52:40,603 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-10-26 22:52:40,603 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-10-26 22:52:40,603 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 22:52:40,603 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 22:52:40,604 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 22:52:40,604 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 22:52:40,604 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 22:52:40,604 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 22:52:40,604 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 22:52:40,604 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 22:52:40,605 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 22:52:40,605 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 22:52:40,605 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 22:52:40,605 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-10-26 22:52:40,605 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 22:52:40,605 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-10-26 22:52:40,605 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-10-26 22:52:40,606 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_20e5a639-d67f-4801-ba55-462da3a32196/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 -> e0f1bd2a42710b6c2eba96cb622bd79ffd05436a [2018-10-26 22:52:40,650 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 22:52:40,662 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 22:52:40,666 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 22:52:40,667 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 22:52:40,667 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 22:52:40,668 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_20e5a639-d67f-4801-ba55-462da3a32196/bin-2019/utaipan/../../sv-benchmarks/c/float-benchs/inv_sqrt_Quake_true-unreach-call_true-termination.c [2018-10-26 22:52:40,727 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_20e5a639-d67f-4801-ba55-462da3a32196/bin-2019/utaipan/data/34532af25/9c8bf2d7e2c44828b98e814948e3724d/FLAG121d00109 [2018-10-26 22:52:41,117 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 22:52:41,118 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_20e5a639-d67f-4801-ba55-462da3a32196/sv-benchmarks/c/float-benchs/inv_sqrt_Quake_true-unreach-call_true-termination.c [2018-10-26 22:52:41,126 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_20e5a639-d67f-4801-ba55-462da3a32196/bin-2019/utaipan/data/34532af25/9c8bf2d7e2c44828b98e814948e3724d/FLAG121d00109 [2018-10-26 22:52:41,142 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_20e5a639-d67f-4801-ba55-462da3a32196/bin-2019/utaipan/data/34532af25/9c8bf2d7e2c44828b98e814948e3724d [2018-10-26 22:52:41,146 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 22:52:41,148 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-26 22:52:41,149 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 22:52:41,149 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 22:52:41,155 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 22:52:41,156 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 10:52:41" (1/1) ... [2018-10-26 22:52:41,158 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d9a9dec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:52:41, skipping insertion in model container [2018-10-26 22:52:41,159 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 10:52:41" (1/1) ... [2018-10-26 22:52:41,168 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 22:52:41,189 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 22:52:41,358 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 22:52:41,366 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 22:52:41,386 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 22:52:41,412 INFO L193 MainTranslator]: Completed translation [2018-10-26 22:52:41,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:52:41 WrapperNode [2018-10-26 22:52:41,413 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 22:52:41,413 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 22:52:41,413 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 22:52:41,414 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 22:52:41,422 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:52:41" (1/1) ... [2018-10-26 22:52:41,434 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:52:41" (1/1) ... [2018-10-26 22:52:41,453 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 22:52:41,455 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 22:52:41,456 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 22:52:41,456 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 22:52:41,464 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:52:41" (1/1) ... [2018-10-26 22:52:41,464 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:52:41" (1/1) ... [2018-10-26 22:52:41,467 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:52:41" (1/1) ... [2018-10-26 22:52:41,468 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:52:41" (1/1) ... [2018-10-26 22:52:41,474 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:52:41" (1/1) ... [2018-10-26 22:52:41,476 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:52:41" (1/1) ... [2018-10-26 22:52:41,477 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:52:41" (1/1) ... [2018-10-26 22:52:41,480 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 22:52:41,480 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 22:52:41,481 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 22:52:41,481 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 22:52:41,482 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:52:41" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_20e5a639-d67f-4801-ba55-462da3a32196/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 22:52:41,592 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-26 22:52:41,592 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-26 22:52:41,593 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-26 22:52:41,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-26 22:52:41,593 INFO L130 BoogieDeclarations]: Found specification of procedure InvSqrt [2018-10-26 22:52:41,593 INFO L138 BoogieDeclarations]: Found implementation of procedure InvSqrt [2018-10-26 22:52:41,593 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 22:52:41,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 22:52:41,593 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-10-26 22:52:41,593 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-10-26 22:52:43,598 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-10-26 22:52:43,745 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 22:52:43,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:52:43 BoogieIcfgContainer [2018-10-26 22:52:43,746 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 22:52:43,747 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 22:52:43,747 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 22:52:43,750 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 22:52:43,751 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 10:52:41" (1/3) ... [2018-10-26 22:52:43,751 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6362003b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 10:52:43, skipping insertion in model container [2018-10-26 22:52:43,751 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:52:41" (2/3) ... [2018-10-26 22:52:43,752 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6362003b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 10:52:43, skipping insertion in model container [2018-10-26 22:52:43,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:52:43" (3/3) ... [2018-10-26 22:52:43,755 INFO L112 eAbstractionObserver]: Analyzing ICFG inv_sqrt_Quake_true-unreach-call_true-termination.c [2018-10-26 22:52:43,764 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 22:52:43,771 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 22:52:43,782 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 22:52:43,803 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-26 22:52:43,804 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 22:52:43,804 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 22:52:43,804 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 22:52:43,806 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 22:52:43,806 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 22:52:43,807 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 22:52:43,807 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 22:52:43,807 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 22:52:43,820 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2018-10-26 22:52:43,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-10-26 22:52:43,826 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:52:43,826 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:52:43,829 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:52:43,834 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:52:43,835 INFO L82 PathProgramCache]: Analyzing trace with hash -1573477556, now seen corresponding path program 1 times [2018-10-26 22:52:43,839 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-26 22:52:43,840 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_20e5a639-d67f-4801-ba55-462da3a32196/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 [2018-10-26 22:52:43,847 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:52:44,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:52:44,835 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 22:52:46,948 WARN L832 $PredicateComparison]: unable to prove that (exists ((|InvSqrt_read~intINTTYPE4_#value| (_ BitVec 32))) (and (= |c_InvSqrt_#res| (let ((.cse0 (let ((.cse1 (bvsub (_ bv1597463007 32) (bvashr |InvSqrt_read~intINTTYPE4_#value| (_ bv1 32))))) (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1))))) (fp.mul RNE .cse0 (fp.sub RNE ((_ to_fp 8 24) RNE (/ 3.0 2.0)) (fp.mul RNE (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 2.0)) |c_InvSqrt_#in~x|) .cse0) .cse0))))) (= |c_InvSqrt_#in~x| (fp ((_ extract 31 31) |InvSqrt_read~intINTTYPE4_#value|) ((_ extract 30 23) |InvSqrt_read~intINTTYPE4_#value|) ((_ extract 22 0) |InvSqrt_read~intINTTYPE4_#value|))))) is different from false [2018-10-26 22:52:49,258 WARN L832 $PredicateComparison]: unable to prove that (exists ((|InvSqrt_read~intINTTYPE4_#value| (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 31 31) |InvSqrt_read~intINTTYPE4_#value|) ((_ extract 30 23) |InvSqrt_read~intINTTYPE4_#value|) ((_ extract 22 0) |InvSqrt_read~intINTTYPE4_#value|)))) (and (fp.leq .cse0 ((_ to_fp 8 24) RNE 100.0)) (= |c_main_#t~ret4| (let ((.cse1 (let ((.cse2 (bvsub (_ bv1597463007 32) (bvashr |InvSqrt_read~intINTTYPE4_#value| (_ bv1 32))))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.mul RNE .cse1 (fp.sub RNE ((_ to_fp 8 24) RNE (/ 3.0 2.0)) (fp.mul RNE (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 2.0)) .cse0) .cse1) .cse1))))) (fp.geq .cse0 ((_ to_fp 8 24) RNE (/ 1.0 10.0)))))) is different from false [2018-10-26 22:52:51,290 WARN L854 $PredicateComparison]: unable to prove that (exists ((|InvSqrt_read~intINTTYPE4_#value| (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 31 31) |InvSqrt_read~intINTTYPE4_#value|) ((_ extract 30 23) |InvSqrt_read~intINTTYPE4_#value|) ((_ extract 22 0) |InvSqrt_read~intINTTYPE4_#value|)))) (and (fp.leq .cse0 ((_ to_fp 8 24) RNE 100.0)) (= |c_main_#t~ret4| (let ((.cse1 (let ((.cse2 (bvsub (_ bv1597463007 32) (bvashr |InvSqrt_read~intINTTYPE4_#value| (_ bv1 32))))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.mul RNE .cse1 (fp.sub RNE ((_ to_fp 8 24) RNE (/ 3.0 2.0)) (fp.mul RNE (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 2.0)) .cse0) .cse1) .cse1))))) (fp.geq .cse0 ((_ to_fp 8 24) RNE (/ 1.0 10.0)))))) is different from true [2018-10-26 22:52:53,339 WARN L832 $PredicateComparison]: unable to prove that (exists ((|InvSqrt_read~intINTTYPE4_#value| (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 31 31) |InvSqrt_read~intINTTYPE4_#value|) ((_ extract 30 23) |InvSqrt_read~intINTTYPE4_#value|) ((_ extract 22 0) |InvSqrt_read~intINTTYPE4_#value|)))) (and (fp.leq .cse0 ((_ to_fp 8 24) RNE 100.0)) (fp.geq .cse0 ((_ to_fp 8 24) RNE (/ 1.0 10.0))) (= (let ((.cse1 (let ((.cse2 (bvsub (_ bv1597463007 32) (bvashr |InvSqrt_read~intINTTYPE4_#value| (_ bv1 32))))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.mul RNE .cse1 (fp.sub RNE ((_ to_fp 8 24) RNE (/ 3.0 2.0)) (fp.mul RNE (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 2.0)) .cse0) .cse1) .cse1)))) c_main_~r~0)))) is different from false [2018-10-26 22:52:55,374 WARN L854 $PredicateComparison]: unable to prove that (exists ((|InvSqrt_read~intINTTYPE4_#value| (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 31 31) |InvSqrt_read~intINTTYPE4_#value|) ((_ extract 30 23) |InvSqrt_read~intINTTYPE4_#value|) ((_ extract 22 0) |InvSqrt_read~intINTTYPE4_#value|)))) (and (fp.leq .cse0 ((_ to_fp 8 24) RNE 100.0)) (fp.geq .cse0 ((_ to_fp 8 24) RNE (/ 1.0 10.0))) (= (let ((.cse1 (let ((.cse2 (bvsub (_ bv1597463007 32) (bvashr |InvSqrt_read~intINTTYPE4_#value| (_ bv1 32))))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.mul RNE .cse1 (fp.sub RNE ((_ to_fp 8 24) RNE (/ 3.0 2.0)) (fp.mul RNE (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 2.0)) .cse0) .cse1) .cse1)))) c_main_~r~0)))) is different from true [2018-10-26 22:53:11,781 WARN L832 $PredicateComparison]: unable to prove that (let ((.cse3 (= |c___VERIFIER_assert_#in~cond| (_ bv0 32)))) (or (and (exists ((v_prenex_2 (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 31 31) v_prenex_2) ((_ extract 30 23) v_prenex_2) ((_ extract 22 0) v_prenex_2)))) (and (fp.leq .cse0 ((_ to_fp 8 24) RNE 100.0)) (not (fp.geq (let ((.cse1 (let ((.cse2 (bvsub (_ bv1597463007 32) (bvashr v_prenex_2 (_ bv1 32))))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.mul RNE .cse1 (fp.sub RNE ((_ to_fp 8 24) RNE (/ 3.0 2.0)) (fp.mul RNE (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 2.0)) .cse0) .cse1) .cse1)))) (_ +zero 8 24))) (fp.geq .cse0 ((_ to_fp 8 24) RNE (/ 1.0 10.0)))))) .cse3) (and (exists ((|InvSqrt_read~intINTTYPE4_#value| (_ BitVec 32))) (let ((.cse4 (fp ((_ extract 31 31) |InvSqrt_read~intINTTYPE4_#value|) ((_ extract 30 23) |InvSqrt_read~intINTTYPE4_#value|) ((_ extract 22 0) |InvSqrt_read~intINTTYPE4_#value|)))) (let ((.cse5 (let ((.cse6 (let ((.cse7 (bvsub (_ bv1597463007 32) (bvashr |InvSqrt_read~intINTTYPE4_#value| (_ bv1 32))))) (fp ((_ extract 31 31) .cse7) ((_ extract 30 23) .cse7) ((_ extract 22 0) .cse7))))) (fp.mul RNE .cse6 (fp.sub RNE ((_ to_fp 8 24) RNE (/ 3.0 2.0)) (fp.mul RNE (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 2.0)) .cse4) .cse6) .cse6)))))) (and (fp.leq .cse4 ((_ to_fp 8 24) RNE 100.0)) (fp.geq .cse5 (_ +zero 8 24)) (fp.geq .cse4 ((_ to_fp 8 24) RNE (/ 1.0 10.0))) (fp.leq ((_ to_fp 11 53) RNE .cse5) ((_ to_fp 11 53) RNE 10.0)))))) (= (bvadd |c___VERIFIER_assert_#in~cond| (_ bv4294967295 32)) (_ bv0 32))) (and .cse3 (exists ((v_prenex_4 (_ BitVec 32))) (let ((.cse9 (fp ((_ extract 31 31) v_prenex_4) ((_ extract 30 23) v_prenex_4) ((_ extract 22 0) v_prenex_4)))) (and (not (fp.leq ((_ to_fp 11 53) RNE (let ((.cse8 (let ((.cse10 (bvsub (_ bv1597463007 32) (bvashr v_prenex_4 (_ bv1 32))))) (fp ((_ extract 31 31) .cse10) ((_ extract 30 23) .cse10) ((_ extract 22 0) .cse10))))) (fp.mul RNE .cse8 (fp.sub RNE ((_ to_fp 8 24) RNE (/ 3.0 2.0)) (fp.mul RNE (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 2.0)) .cse9) .cse8) .cse8))))) ((_ to_fp 11 53) RNE 10.0))) (fp.leq .cse9 ((_ to_fp 8 24) RNE 100.0)) (fp.geq .cse9 ((_ to_fp 8 24) RNE (/ 1.0 10.0))))))))) is different from false [2018-10-26 22:53:26,160 WARN L832 $PredicateComparison]: unable to prove that (let ((.cse4 (= (_ bv0 32) c___VERIFIER_assert_~cond))) (or (and (exists ((|InvSqrt_read~intINTTYPE4_#value| (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 31 31) |InvSqrt_read~intINTTYPE4_#value|) ((_ extract 30 23) |InvSqrt_read~intINTTYPE4_#value|) ((_ extract 22 0) |InvSqrt_read~intINTTYPE4_#value|)))) (let ((.cse1 (let ((.cse2 (let ((.cse3 (bvsub (_ bv1597463007 32) (bvashr |InvSqrt_read~intINTTYPE4_#value| (_ bv1 32))))) (fp ((_ extract 31 31) .cse3) ((_ extract 30 23) .cse3) ((_ extract 22 0) .cse3))))) (fp.mul RNE .cse2 (fp.sub RNE ((_ to_fp 8 24) RNE (/ 3.0 2.0)) (fp.mul RNE (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 2.0)) .cse0) .cse2) .cse2)))))) (and (fp.leq .cse0 ((_ to_fp 8 24) RNE 100.0)) (fp.geq .cse1 (_ +zero 8 24)) (fp.geq .cse0 ((_ to_fp 8 24) RNE (/ 1.0 10.0))) (fp.leq ((_ to_fp 11 53) RNE .cse1) ((_ to_fp 11 53) RNE 10.0)))))) (= (bvadd c___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32))) (and .cse4 (exists ((v_prenex_4 (_ BitVec 32))) (let ((.cse6 (fp ((_ extract 31 31) v_prenex_4) ((_ extract 30 23) v_prenex_4) ((_ extract 22 0) v_prenex_4)))) (and (not (fp.leq ((_ to_fp 11 53) RNE (let ((.cse5 (let ((.cse7 (bvsub (_ bv1597463007 32) (bvashr v_prenex_4 (_ bv1 32))))) (fp ((_ extract 31 31) .cse7) ((_ extract 30 23) .cse7) ((_ extract 22 0) .cse7))))) (fp.mul RNE .cse5 (fp.sub RNE ((_ to_fp 8 24) RNE (/ 3.0 2.0)) (fp.mul RNE (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 2.0)) .cse6) .cse5) .cse5))))) ((_ to_fp 11 53) RNE 10.0))) (fp.leq .cse6 ((_ to_fp 8 24) RNE 100.0)) (fp.geq .cse6 ((_ to_fp 8 24) RNE (/ 1.0 10.0))))))) (and .cse4 (exists ((v_prenex_2 (_ BitVec 32))) (let ((.cse8 (fp ((_ extract 31 31) v_prenex_2) ((_ extract 30 23) v_prenex_2) ((_ extract 22 0) v_prenex_2)))) (and (fp.leq .cse8 ((_ to_fp 8 24) RNE 100.0)) (not (fp.geq (let ((.cse9 (let ((.cse10 (bvsub (_ bv1597463007 32) (bvashr v_prenex_2 (_ bv1 32))))) (fp ((_ extract 31 31) .cse10) ((_ extract 30 23) .cse10) ((_ extract 22 0) .cse10))))) (fp.mul RNE .cse9 (fp.sub RNE ((_ to_fp 8 24) RNE (/ 3.0 2.0)) (fp.mul RNE (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 2.0)) .cse8) .cse9) .cse9)))) (_ +zero 8 24))) (fp.geq .cse8 ((_ to_fp 8 24) RNE (/ 1.0 10.0))))))))) is different from false [2018-10-26 22:53:36,456 WARN L832 $PredicateComparison]: unable to prove that (or (exists ((v_prenex_2 (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 31 31) v_prenex_2) ((_ extract 30 23) v_prenex_2) ((_ extract 22 0) v_prenex_2)))) (and (fp.leq .cse0 ((_ to_fp 8 24) RNE 100.0)) (not (fp.geq (let ((.cse1 (let ((.cse2 (bvsub (_ bv1597463007 32) (bvashr v_prenex_2 (_ bv1 32))))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.mul RNE .cse1 (fp.sub RNE ((_ to_fp 8 24) RNE (/ 3.0 2.0)) (fp.mul RNE (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 2.0)) .cse0) .cse1) .cse1)))) (_ +zero 8 24))) (fp.geq .cse0 ((_ to_fp 8 24) RNE (/ 1.0 10.0)))))) (exists ((v_prenex_4 (_ BitVec 32))) (let ((.cse4 (fp ((_ extract 31 31) v_prenex_4) ((_ extract 30 23) v_prenex_4) ((_ extract 22 0) v_prenex_4)))) (and (not (fp.leq ((_ to_fp 11 53) RNE (let ((.cse3 (let ((.cse5 (bvsub (_ bv1597463007 32) (bvashr v_prenex_4 (_ bv1 32))))) (fp ((_ extract 31 31) .cse5) ((_ extract 30 23) .cse5) ((_ extract 22 0) .cse5))))) (fp.mul RNE .cse3 (fp.sub RNE ((_ to_fp 8 24) RNE (/ 3.0 2.0)) (fp.mul RNE (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 2.0)) .cse4) .cse3) .cse3))))) ((_ to_fp 11 53) RNE 10.0))) (fp.leq .cse4 ((_ to_fp 8 24) RNE 100.0)) (fp.geq .cse4 ((_ to_fp 8 24) RNE (/ 1.0 10.0))))))) is different from false [2018-10-26 22:53:38,523 WARN L854 $PredicateComparison]: unable to prove that (or (exists ((v_prenex_2 (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 31 31) v_prenex_2) ((_ extract 30 23) v_prenex_2) ((_ extract 22 0) v_prenex_2)))) (and (fp.leq .cse0 ((_ to_fp 8 24) RNE 100.0)) (not (fp.geq (let ((.cse1 (let ((.cse2 (bvsub (_ bv1597463007 32) (bvashr v_prenex_2 (_ bv1 32))))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.mul RNE .cse1 (fp.sub RNE ((_ to_fp 8 24) RNE (/ 3.0 2.0)) (fp.mul RNE (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 2.0)) .cse0) .cse1) .cse1)))) (_ +zero 8 24))) (fp.geq .cse0 ((_ to_fp 8 24) RNE (/ 1.0 10.0)))))) (exists ((v_prenex_4 (_ BitVec 32))) (let ((.cse4 (fp ((_ extract 31 31) v_prenex_4) ((_ extract 30 23) v_prenex_4) ((_ extract 22 0) v_prenex_4)))) (and (not (fp.leq ((_ to_fp 11 53) RNE (let ((.cse3 (let ((.cse5 (bvsub (_ bv1597463007 32) (bvashr v_prenex_4 (_ bv1 32))))) (fp ((_ extract 31 31) .cse5) ((_ extract 30 23) .cse5) ((_ extract 22 0) .cse5))))) (fp.mul RNE .cse3 (fp.sub RNE ((_ to_fp 8 24) RNE (/ 3.0 2.0)) (fp.mul RNE (fp.mul RNE (fp.mul RNE ((_ to_fp 8 24) RNE (/ 1.0 2.0)) .cse4) .cse3) .cse3))))) ((_ to_fp 11 53) RNE 10.0))) (fp.leq .cse4 ((_ to_fp 8 24) RNE 100.0)) (fp.geq .cse4 ((_ to_fp 8 24) RNE (/ 1.0 10.0))))))) is different from true [2018-10-26 22:53:38,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:53:38,531 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-26 22:53:38,549 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:53:38,549 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-10-26 22:53:38,552 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-26 22:53:38,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-26 22:53:38,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=6, Unknown=9, NotChecked=42, Total=72 [2018-10-26 22:53:38,568 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 9 states. [2018-10-26 22:53:38,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:53:38,604 INFO L93 Difference]: Finished difference Result 30 states and 29 transitions. [2018-10-26 22:53:38,604 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-26 22:53:38,605 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 15 [2018-10-26 22:53:38,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:53:38,611 INFO L225 Difference]: With dead ends: 30 [2018-10-26 22:53:38,611 INFO L226 Difference]: Without dead ends: 0 [2018-10-26 22:53:38,614 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 18.8s TimeCoverageRelationStatistics Valid=15, Invalid=6, Unknown=9, NotChecked=42, Total=72 [2018-10-26 22:53:38,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-26 22:53:38,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-26 22:53:38,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-26 22:53:38,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-26 22:53:38,641 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2018-10-26 22:53:38,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:53:38,642 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-26 22:53:38,642 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-26 22:53:38,642 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-26 22:53:38,642 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-26 22:53:38,647 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-26 22:53:55,945 WARN L194 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2018-10-26 22:53:55,946 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. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:208) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:221) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.push(Scriptor.java:133) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.arrays.DiffWrapperScript.push(DiffWrapperScript.java:93) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.WrapperScript.push(WrapperScript.java:101) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.UndoableWrapperScript.push(UndoableWrapperScript.java:52) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:48) 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.SmtUtils.simplify(SmtUtils.java:150) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.SmtUtils.simplifyWithStatistics(SmtUtils.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter(HoareAnnotationComposer.java:149) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.(HoareAnnotationComposer.java:105) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeCFGHoareAnnotation(BasicCegarLoop.java:982) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:324) 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) ... 32 more [2018-10-26 22:53:55,949 INFO L168 Benchmark]: Toolchain (without parser) took 74801.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 208.7 MB). Free memory was 949.2 MB in the beginning and 1.1 GB in the end (delta: -180.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. [2018-10-26 22:53:55,950 INFO L168 Benchmark]: CDTParser took 0.48 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. [2018-10-26 22:53:55,951 INFO L168 Benchmark]: CACSL2BoogieTranslator took 263.85 ms. Allocated memory is still 1.0 GB. Free memory was 949.2 MB in the beginning and 938.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-10-26 22:53:55,951 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.90 ms. Allocated memory is still 1.0 GB. Free memory was 938.5 MB in the beginning and 933.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-10-26 22:53:55,956 INFO L168 Benchmark]: Boogie Preprocessor took 24.76 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. [2018-10-26 22:53:55,957 INFO L168 Benchmark]: RCFGBuilder took 2265.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 208.7 MB). Free memory was 933.1 MB in the beginning and 1.2 GB in the end (delta: -247.3 MB). Peak memory consumption was 22.5 MB. Max. memory is 11.5 GB. [2018-10-26 22:53:55,958 INFO L168 Benchmark]: TraceAbstraction took 72201.23 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: 50.4 MB). Peak memory consumption was 50.4 MB. Max. memory is 11.5 GB. [2018-10-26 22:53:55,961 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48 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 263.85 ms. Allocated memory is still 1.0 GB. Free memory was 949.2 MB in the beginning and 938.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 41.90 ms. Allocated memory is still 1.0 GB. Free memory was 938.5 MB in the beginning and 933.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.76 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. * RCFGBuilder took 2265.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 208.7 MB). Free memory was 933.1 MB in the beginning and 1.2 GB in the end (delta: -247.3 MB). Peak memory consumption was 22.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 72201.23 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: 50.4 MB). Peak memory consumption was 50.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") : 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...