./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/float-newlib/double_req_bl_1012b_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 91b1670e Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/float-newlib/double_req_bl_1012b_true-unreach-call.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 56df0817616f6c5016a1ac832f32db0c87e1c370 .......................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/float-newlib/double_req_bl_1012b_true-unreach-call.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 56df0817616f6c5016a1ac832f32db0c87e1c370 ............................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-91b1670 [2018-11-28 17:55:13,925 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 17:55:13,927 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 17:55:13,940 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 17:55:13,940 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 17:55:13,941 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 17:55:13,943 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 17:55:13,945 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 17:55:13,946 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 17:55:13,947 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 17:55:13,949 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 17:55:13,949 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 17:55:13,950 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 17:55:13,951 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 17:55:13,952 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 17:55:13,954 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 17:55:13,954 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 17:55:13,956 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 17:55:13,959 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 17:55:13,961 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 17:55:13,962 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 17:55:13,963 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 17:55:13,966 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 17:55:13,967 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 17:55:13,967 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 17:55:13,968 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 17:55:13,970 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 17:55:13,970 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 17:55:13,972 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 17:55:13,974 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 17:55:13,974 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 17:55:13,975 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 17:55:13,975 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 17:55:13,975 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 17:55:13,977 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 17:55:13,978 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 17:55:13,978 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 17:55:13,994 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 17:55:13,995 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 17:55:13,995 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 17:55:13,996 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 17:55:13,997 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 17:55:13,997 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 17:55:13,997 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 17:55:13,997 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 17:55:13,997 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 17:55:13,998 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 17:55:13,998 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 17:55:13,998 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 17:55:13,998 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 17:55:13,998 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 17:55:13,998 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 17:55:13,999 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 17:55:14,000 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 17:55:14,000 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 17:55:14,000 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 17:55:14,001 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 17:55:14,001 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 17:55:14,001 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 17:55:14,001 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 17:55:14,001 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 17:55:14,001 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 17:55:14,003 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 17:55:14,003 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 17:55:14,003 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 17:55:14,003 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 17:55:14,003 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 17:55:14,003 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> Automizer 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 -> 56df0817616f6c5016a1ac832f32db0c87e1c370 [2018-11-28 17:55:14,040 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 17:55:14,055 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 17:55:14,062 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 17:55:14,064 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 17:55:14,064 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 17:55:14,065 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-newlib/double_req_bl_1012b_true-unreach-call.c [2018-11-28 17:55:14,135 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e79b70642/88610bf1649943309cfd02d3a40eac80/FLAGf4575a013 [2018-11-28 17:55:14,642 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 17:55:14,643 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-newlib/double_req_bl_1012b_true-unreach-call.c [2018-11-28 17:55:14,650 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e79b70642/88610bf1649943309cfd02d3a40eac80/FLAGf4575a013 [2018-11-28 17:55:14,964 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e79b70642/88610bf1649943309cfd02d3a40eac80 [2018-11-28 17:55:14,967 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 17:55:14,969 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 17:55:14,970 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 17:55:14,970 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 17:55:14,974 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 17:55:14,975 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:55:14" (1/1) ... [2018-11-28 17:55:14,978 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4125e4cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:14, skipping insertion in model container [2018-11-28 17:55:14,978 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:55:14" (1/1) ... [2018-11-28 17:55:14,988 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 17:55:15,014 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 17:55:15,289 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:55:15,295 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 17:55:15,355 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:55:15,381 INFO L195 MainTranslator]: Completed translation [2018-11-28 17:55:15,381 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:15 WrapperNode [2018-11-28 17:55:15,381 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 17:55:15,382 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 17:55:15,383 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 17:55:15,383 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 17:55:15,391 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:15" (1/1) ... [2018-11-28 17:55:15,409 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:15" (1/1) ... [2018-11-28 17:55:15,417 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 17:55:15,417 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 17:55:15,417 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 17:55:15,417 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 17:55:15,426 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:15" (1/1) ... [2018-11-28 17:55:15,426 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:15" (1/1) ... [2018-11-28 17:55:15,429 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:15" (1/1) ... [2018-11-28 17:55:15,429 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:15" (1/1) ... [2018-11-28 17:55:15,441 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:15" (1/1) ... [2018-11-28 17:55:15,447 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:15" (1/1) ... [2018-11-28 17:55:15,516 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:15" (1/1) ... [2018-11-28 17:55:15,519 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 17:55:15,520 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 17:55:15,520 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 17:55:15,520 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 17:55:15,521 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:15" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-11-28 17:55:15,584 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2018-11-28 17:55:15,584 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2018-11-28 17:55:15,585 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 17:55:15,585 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 17:55:15,585 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-28 17:55:15,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 17:55:15,585 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2018-11-28 17:55:15,585 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2018-11-28 17:55:15,585 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 17:55:15,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 17:55:15,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-28 17:55:15,586 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 17:55:15,586 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 17:55:15,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 17:55:15,586 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-28 17:55:15,587 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 17:55:16,039 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 17:55:16,039 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-11-28 17:55:16,040 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:55:16 BoogieIcfgContainer [2018-11-28 17:55:16,040 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 17:55:16,041 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 17:55:16,041 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 17:55:16,045 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 17:55:16,045 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:55:14" (1/3) ... [2018-11-28 17:55:16,046 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3479212 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:55:16, skipping insertion in model container [2018-11-28 17:55:16,046 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:15" (2/3) ... [2018-11-28 17:55:16,047 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3479212 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:55:16, skipping insertion in model container [2018-11-28 17:55:16,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:55:16" (3/3) ... [2018-11-28 17:55:16,049 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1012b_true-unreach-call.c [2018-11-28 17:55:16,060 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 17:55:16,071 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 17:55:16,090 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 17:55:16,125 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 17:55:16,126 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 17:55:16,126 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 17:55:16,126 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 17:55:16,126 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 17:55:16,127 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 17:55:16,127 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 17:55:16,127 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 17:55:16,127 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 17:55:16,146 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2018-11-28 17:55:16,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-28 17:55:16,152 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:55:16,153 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 17:55:16,155 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:55:16,161 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:55:16,161 INFO L82 PathProgramCache]: Analyzing trace with hash -739558388, now seen corresponding path program 1 times [2018-11-28 17:55:16,163 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 17:55:16,163 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 17:55:16,211 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 17:55:16,211 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:55:16,212 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 17:55:16,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:55:16,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 17:55:16,323 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:55:16,324 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 17:55:16,327 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 17:55:16,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 17:55:16,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 17:55:16,345 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 2 states. [2018-11-28 17:55:16,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:55:16,367 INFO L93 Difference]: Finished difference Result 54 states and 67 transitions. [2018-11-28 17:55:16,367 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 17:55:16,369 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 23 [2018-11-28 17:55:16,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:55:16,376 INFO L225 Difference]: With dead ends: 54 [2018-11-28 17:55:16,376 INFO L226 Difference]: Without dead ends: 27 [2018-11-28 17:55:16,379 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 17:55:16,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-11-28 17:55:16,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2018-11-28 17:55:16,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-11-28 17:55:16,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 26 transitions. [2018-11-28 17:55:16,417 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 26 transitions. Word has length 23 [2018-11-28 17:55:16,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:55:16,418 INFO L480 AbstractCegarLoop]: Abstraction has 27 states and 26 transitions. [2018-11-28 17:55:16,418 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 17:55:16,418 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 26 transitions. [2018-11-28 17:55:16,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-28 17:55:16,419 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:55:16,419 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 17:55:16,420 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:55:16,420 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:55:16,420 INFO L82 PathProgramCache]: Analyzing trace with hash 1668428866, now seen corresponding path program 1 times [2018-11-28 17:55:16,420 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 17:55:16,421 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 17:55:16,422 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 17:55:16,422 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:55:16,422 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 17:55:16,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 17:55:16,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 17:55:16,692 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 17:55:16,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 05:55:16 BoogieIcfgContainer [2018-11-28 17:55:16,730 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 17:55:16,731 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 17:55:16,731 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 17:55:16,731 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 17:55:16,731 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:55:16" (3/4) ... [2018-11-28 17:55:16,736 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 17:55:16,736 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 17:55:16,737 INFO L168 Benchmark]: Toolchain (without parser) took 1769.29 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.5 MB). Free memory was 952.7 MB in the beginning and 1.1 GB in the end (delta: -106.5 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. [2018-11-28 17:55:16,739 INFO L168 Benchmark]: CDTParser took 0.43 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:55:16,740 INFO L168 Benchmark]: CACSL2BoogieTranslator took 411.87 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 942.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 17:55:16,741 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.48 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:55:16,742 INFO L168 Benchmark]: Boogie Preprocessor took 102.37 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.5 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -170.8 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. [2018-11-28 17:55:16,743 INFO L168 Benchmark]: RCFGBuilder took 520.32 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.1 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. [2018-11-28 17:55:16,743 INFO L168 Benchmark]: TraceAbstraction took 688.91 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.5 MB). Peak memory consumption was 27.5 MB. Max. memory is 11.5 GB. [2018-11-28 17:55:16,744 INFO L168 Benchmark]: Witness Printer took 5.63 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:55:16,749 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 411.87 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 942.0 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 34.48 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 102.37 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.5 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -170.8 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 520.32 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.1 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 688.91 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.5 MB). Peak memory consumption was 27.5 MB. Max. memory is 11.5 GB. * Witness Printer took 5.63 ms. Allocated memory is still 1.1 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.plugins.generator.traceabstraction: - UnprovableResult [Line: 73]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 39, overapproximation of someBinaryArithmeticDOUBLEoperation at line 68, overapproximation of bitwiseAnd at line 38. Possible FailurePath: [L68] double x = -1.0 / 0.0; [L69] CALL, EXPR fabs_double(x) VAL [\old(x)=6442450952] [L45] __uint32_t high; VAL [\old(x)=6442450952, x=6442450952] [L47] ieee_double_shape_type gh_u; [L48] gh_u.value = (x) [L49] EXPR gh_u.parts.msw [L49] (high) = gh_u.parts.msw [L52] ieee_double_shape_type sh_u; [L53] sh_u.value = (x) [L54] sh_u.parts.msw = (high & 0x7fffffff) [L55] EXPR sh_u.value [L55] (x) = sh_u.value [L57] return x; VAL [\old(x)=6442450952, \result=6442450952, high=2147483666, x=6442450952] [L69] RET, EXPR fabs_double(x) VAL [fabs_double(x)=6442450952, x=6442450952] [L69] double res = fabs_double(x); [L72] CALL, EXPR isinf_double(res) VAL [\old(x)=6442450952] [L31] __int32_t hx, lx; VAL [\old(x)=6442450952, x=6442450952] [L33] ieee_double_shape_type ew_u; [L34] ew_u.value = (x) [L35] EXPR ew_u.parts.msw [L35] (hx) = ew_u.parts.msw [L36] EXPR ew_u.parts.lsw [L36] (lx) = ew_u.parts.lsw [L38] hx &= 0x7fffffff [L39] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L40] hx = 0x7ff00000 - hx [L41] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [\old(x)=6442450952, \result=0, hx=2146435072, lx=-2147483648, x=6442450952] [L72] RET, EXPR isinf_double(res) VAL [isinf_double(res)=0, res=6442450952, x=6442450952] [L72] COND TRUE !isinf_double(res) [L73] __VERIFIER_error() VAL [res=6442450952, x=6442450952] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 31 locations, 1 error locations. UNSAFE Result, 0.6s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 30 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 484 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-91b1670 [2018-11-28 17:55:19,157 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 17:55:19,158 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 17:55:19,175 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 17:55:19,175 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 17:55:19,176 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 17:55:19,177 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 17:55:19,179 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 17:55:19,180 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 17:55:19,181 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 17:55:19,182 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 17:55:19,182 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 17:55:19,183 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 17:55:19,184 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 17:55:19,185 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 17:55:19,186 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 17:55:19,187 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 17:55:19,188 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 17:55:19,190 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 17:55:19,192 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 17:55:19,193 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 17:55:19,194 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 17:55:19,197 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 17:55:19,201 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 17:55:19,201 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 17:55:19,202 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 17:55:19,207 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 17:55:19,208 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 17:55:19,211 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 17:55:19,212 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 17:55:19,212 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 17:55:19,213 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 17:55:19,213 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 17:55:19,213 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 17:55:19,216 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 17:55:19,218 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 17:55:19,220 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-28 17:55:19,235 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 17:55:19,236 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 17:55:19,237 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 17:55:19,237 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 17:55:19,237 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 17:55:19,238 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 17:55:19,238 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 17:55:19,238 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 17:55:19,238 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 17:55:19,238 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 17:55:19,239 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 17:55:19,239 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 17:55:19,239 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 17:55:19,239 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 17:55:19,239 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-28 17:55:19,239 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-28 17:55:19,240 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 17:55:19,240 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 17:55:19,240 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 17:55:19,240 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 17:55:19,240 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 17:55:19,241 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 17:55:19,241 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 17:55:19,241 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 17:55:19,241 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 17:55:19,241 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 17:55:19,244 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 17:55:19,244 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 17:55:19,244 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-28 17:55:19,244 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 17:55:19,245 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-11-28 17:55:19,245 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-28 17:55:19,245 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> Automizer 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 -> 56df0817616f6c5016a1ac832f32db0c87e1c370 [2018-11-28 17:55:19,313 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 17:55:19,332 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 17:55:19,337 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 17:55:19,339 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 17:55:19,339 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 17:55:19,340 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-newlib/double_req_bl_1012b_true-unreach-call.c [2018-11-28 17:55:19,403 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39010f07d/4cea678acc45489ba4ff5527bd47d844/FLAG146accaa6 [2018-11-28 17:55:19,831 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 17:55:19,832 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-newlib/double_req_bl_1012b_true-unreach-call.c [2018-11-28 17:55:19,839 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39010f07d/4cea678acc45489ba4ff5527bd47d844/FLAG146accaa6 [2018-11-28 17:55:20,197 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39010f07d/4cea678acc45489ba4ff5527bd47d844 [2018-11-28 17:55:20,201 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 17:55:20,202 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 17:55:20,209 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 17:55:20,210 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 17:55:20,214 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 17:55:20,215 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:55:20" (1/1) ... [2018-11-28 17:55:20,219 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7215927 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:20, skipping insertion in model container [2018-11-28 17:55:20,219 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:55:20" (1/1) ... [2018-11-28 17:55:20,228 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 17:55:20,250 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 17:55:20,507 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:55:20,515 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 17:55:20,548 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:55:20,581 INFO L195 MainTranslator]: Completed translation [2018-11-28 17:55:20,581 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:20 WrapperNode [2018-11-28 17:55:20,581 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 17:55:20,582 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 17:55:20,582 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 17:55:20,583 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 17:55:20,592 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:20" (1/1) ... [2018-11-28 17:55:20,605 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:20" (1/1) ... [2018-11-28 17:55:20,613 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 17:55:20,614 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 17:55:20,614 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 17:55:20,614 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 17:55:20,625 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:20" (1/1) ... [2018-11-28 17:55:20,625 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:20" (1/1) ... [2018-11-28 17:55:20,630 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:20" (1/1) ... [2018-11-28 17:55:20,630 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:20" (1/1) ... [2018-11-28 17:55:20,645 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:20" (1/1) ... [2018-11-28 17:55:20,651 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:20" (1/1) ... [2018-11-28 17:55:20,654 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:20" (1/1) ... [2018-11-28 17:55:20,657 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 17:55:20,658 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 17:55:20,658 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 17:55:20,658 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 17:55:20,659 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:20" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-11-28 17:55:20,804 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-11-28 17:55:20,805 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2018-11-28 17:55:20,805 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2018-11-28 17:55:20,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-11-28 17:55:20,805 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 17:55:20,805 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 17:55:20,805 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2018-11-28 17:55:20,807 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2018-11-28 17:55:20,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 17:55:20,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 17:55:20,807 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 17:55:20,810 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-28 17:55:20,810 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 17:55:20,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 17:55:20,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-28 17:55:20,810 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 17:55:21,059 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 17:55:21,204 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 17:55:21,338 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 17:55:21,423 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 17:55:21,424 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-11-28 17:55:21,424 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:55:21 BoogieIcfgContainer [2018-11-28 17:55:21,424 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 17:55:21,425 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 17:55:21,425 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 17:55:21,429 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 17:55:21,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:55:20" (1/3) ... [2018-11-28 17:55:21,430 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@659ca7dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:55:21, skipping insertion in model container [2018-11-28 17:55:21,430 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:55:20" (2/3) ... [2018-11-28 17:55:21,431 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@659ca7dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:55:21, skipping insertion in model container [2018-11-28 17:55:21,431 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:55:21" (3/3) ... [2018-11-28 17:55:21,433 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1012b_true-unreach-call.c [2018-11-28 17:55:21,443 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 17:55:21,452 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 17:55:21,471 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 17:55:21,504 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 17:55:21,505 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 17:55:21,505 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 17:55:21,506 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 17:55:21,506 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 17:55:21,506 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 17:55:21,506 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 17:55:21,506 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 17:55:21,506 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 17:55:21,525 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2018-11-28 17:55:21,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-28 17:55:21,532 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:55:21,533 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 17:55:21,535 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:55:21,541 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:55:21,541 INFO L82 PathProgramCache]: Analyzing trace with hash 603222923, now seen corresponding path program 1 times [2018-11-28 17:55:21,545 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 17:55:21,546 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-11-28 17:55:21,553 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:55:21,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:55:21,623 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 17:55:21,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 17:55:21,645 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 17:55:21,662 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:55:21,662 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 17:55:21,666 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 17:55:21,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 17:55:21,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 17:55:21,681 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 2 states. [2018-11-28 17:55:21,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:55:21,706 INFO L93 Difference]: Finished difference Result 52 states and 65 transitions. [2018-11-28 17:55:21,706 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 17:55:21,708 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-11-28 17:55:21,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:55:21,717 INFO L225 Difference]: With dead ends: 52 [2018-11-28 17:55:21,718 INFO L226 Difference]: Without dead ends: 26 [2018-11-28 17:55:21,722 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 17:55:21,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2018-11-28 17:55:21,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2018-11-28 17:55:21,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-11-28 17:55:21,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 25 transitions. [2018-11-28 17:55:21,765 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 25 transitions. Word has length 22 [2018-11-28 17:55:21,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:55:21,765 INFO L480 AbstractCegarLoop]: Abstraction has 26 states and 25 transitions. [2018-11-28 17:55:21,765 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 17:55:21,766 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 25 transitions. [2018-11-28 17:55:21,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-28 17:55:21,767 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:55:21,767 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 17:55:21,768 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:55:21,768 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:55:21,768 INFO L82 PathProgramCache]: Analyzing trace with hash -460417459, now seen corresponding path program 1 times [2018-11-28 17:55:21,770 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 17:55:21,770 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-11-28 17:55:21,777 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:55:21,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:55:21,921 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 17:55:22,036 INFO L683 Elim1Store]: detected equality via solver [2018-11-28 17:55:22,047 INFO L683 Elim1Store]: detected equality via solver [2018-11-28 17:55:22,061 INFO L683 Elim1Store]: detected equality via solver [2018-11-28 17:55:22,071 INFO L683 Elim1Store]: detected equality via solver [2018-11-28 17:55:22,078 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 73 [2018-11-28 17:55:22,168 INFO L478 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 3 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 52 [2018-11-28 17:55:22,170 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 17:55:22,262 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 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 36 treesize of output 28 [2018-11-28 17:55:22,319 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 22 [2018-11-28 17:55:22,321 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-28 17:55:22,380 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 17:55:22,623 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-28 17:55:22,954 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-11-28 17:55:22,956 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:66, output treesize:46 [2018-11-28 17:55:23,150 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 91 treesize of output 87 [2018-11-28 17:55:23,236 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 67 [2018-11-28 17:55:23,438 INFO L303 Elim1Store]: Index analysis took 172 ms [2018-11-28 17:55:23,439 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 33 [2018-11-28 17:55:23,440 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-28 17:55:23,459 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 17:55:23,685 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 17:55:23,830 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-11-28 17:55:23,830 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 6 variables, input treesize:114, output treesize:56 [2018-11-28 17:55:24,311 INFO L683 Elim1Store]: detected equality via solver [2018-11-28 17:55:24,312 INFO L683 Elim1Store]: detected equality via solver [2018-11-28 17:55:24,313 INFO L683 Elim1Store]: detected equality via solver [2018-11-28 17:55:24,314 INFO L683 Elim1Store]: detected equality via solver [2018-11-28 17:55:24,317 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 98 [2018-11-28 17:55:24,439 WARN L180 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 31 [2018-11-28 17:55:24,489 INFO L478 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 3 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 65 [2018-11-28 17:55:24,647 WARN L180 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2018-11-28 17:55:24,690 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 14 [2018-11-28 17:55:24,691 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-28 17:55:24,892 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 17:55:24,940 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 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 25 treesize of output 19 [2018-11-28 17:55:24,950 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 5 [2018-11-28 17:55:24,951 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-28 17:55:24,958 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 17:55:24,990 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 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 8 treesize of output 6 [2018-11-28 17:55:24,996 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2018-11-28 17:55:24,996 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-11-28 17:55:24,999 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 17:55:25,017 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-28 17:55:25,041 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-11-28 17:55:25,041 INFO L202 ElimStorePlain]: Needed 8 recursive calls to eliminate 4 variables, input treesize:82, output treesize:28 [2018-11-28 17:55:25,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 17:55:25,669 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 17:55:25,691 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:55:25,691 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-11-28 17:55:25,693 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-11-28 17:55:25,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-11-28 17:55:25,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2018-11-28 17:55:25,694 INFO L87 Difference]: Start difference. First operand 26 states and 25 transitions. Second operand 13 states. [2018-11-28 17:55:27,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:55:27,797 INFO L93 Difference]: Finished difference Result 26 states and 25 transitions. [2018-11-28 17:55:27,797 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-28 17:55:27,798 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 25 [2018-11-28 17:55:27,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:55:27,798 INFO L225 Difference]: With dead ends: 26 [2018-11-28 17:55:27,799 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 17:55:27,802 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2018-11-28 17:55:27,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 17:55:27,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 17:55:27,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 17:55:27,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 17:55:27,803 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2018-11-28 17:55:27,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:55:27,804 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 17:55:27,804 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-11-28 17:55:27,804 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 17:55:27,804 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 17:55:27,810 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 17:55:27,992 INFO L448 ceAbstractionStarter]: For program point fabs_doubleEXIT(lines 44 58) no Hoare annotation was computed. [2018-11-28 17:55:27,992 INFO L451 ceAbstractionStarter]: At program point fabs_doubleENTRY(lines 44 58) the Hoare annotation is: true [2018-11-28 17:55:27,992 INFO L448 ceAbstractionStarter]: For program point L51(lines 51 56) no Hoare annotation was computed. [2018-11-28 17:55:27,992 INFO L448 ceAbstractionStarter]: For program point L51-1(lines 44 58) no Hoare annotation was computed. [2018-11-28 17:55:27,993 INFO L448 ceAbstractionStarter]: For program point L51-2(lines 51 56) no Hoare annotation was computed. [2018-11-28 17:55:27,993 INFO L448 ceAbstractionStarter]: For program point L46-1(lines 46 50) no Hoare annotation was computed. [2018-11-28 17:55:27,993 INFO L444 ceAbstractionStarter]: At program point L46-2(lines 46 50) the Hoare annotation is: (= |fabs_double_#in~x| fabs_double_~x) [2018-11-28 17:55:27,993 INFO L448 ceAbstractionStarter]: For program point fabs_doubleFINAL(lines 44 58) no Hoare annotation was computed. [2018-11-28 17:55:27,993 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-28 17:55:27,993 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-28 17:55:27,993 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 17:55:27,993 INFO L448 ceAbstractionStarter]: For program point L32-1(lines 32 37) no Hoare annotation was computed. [2018-11-28 17:55:27,995 INFO L444 ceAbstractionStarter]: At program point L32-2(lines 32 37) the Hoare annotation is: (= isinf_double_~x |isinf_double_#in~x|) [2018-11-28 17:55:27,995 INFO L448 ceAbstractionStarter]: For program point L32-3(lines 32 37) no Hoare annotation was computed. [2018-11-28 17:55:27,996 INFO L448 ceAbstractionStarter]: For program point isinf_doubleFINAL(lines 30 42) no Hoare annotation was computed. [2018-11-28 17:55:27,996 INFO L448 ceAbstractionStarter]: For program point isinf_doubleEXIT(lines 30 42) no Hoare annotation was computed. [2018-11-28 17:55:27,996 INFO L451 ceAbstractionStarter]: At program point isinf_doubleENTRY(lines 30 42) the Hoare annotation is: true [2018-11-28 17:55:27,996 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 17:55:27,996 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-28 17:55:27,996 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 17:55:27,996 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 17:55:27,997 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 60 78) the Hoare annotation is: true [2018-11-28 17:55:27,997 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 73) no Hoare annotation was computed. [2018-11-28 17:55:27,997 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 60 78) no Hoare annotation was computed. [2018-11-28 17:55:27,997 INFO L448 ceAbstractionStarter]: For program point L73(line 73) no Hoare annotation was computed. [2018-11-28 17:55:27,997 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 60 78) no Hoare annotation was computed. [2018-11-28 17:55:27,998 INFO L444 ceAbstractionStarter]: At program point L72(line 72) the Hoare annotation is: (and (exists ((|v_q#valueAsBitvector_4| (_ BitVec 64)) (|v_q#valueAsBitvector_5| (_ BitVec 64)) (v_prenex_7 (_ BitVec 64))) (let ((.cse0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (_ +zero 11 53))) (.cse1 ((_ extract 63 32) v_prenex_7))) (and (= .cse0 (fp ((_ extract 63 63) |v_q#valueAsBitvector_5|) ((_ extract 62 52) |v_q#valueAsBitvector_5|) ((_ extract 51 0) |v_q#valueAsBitvector_5|))) (= ((_ extract 31 0) v_prenex_7) ((_ extract 31 0) |v_q#valueAsBitvector_4|)) (= .cse1 ((_ extract 63 32) |v_q#valueAsBitvector_4|)) (= .cse0 (fp ((_ extract 63 63) v_prenex_7) ((_ extract 62 52) v_prenex_7) ((_ extract 51 0) v_prenex_7))) (= (let ((.cse2 (concat (bvand (_ bv2147483647 32) .cse1) ((_ extract 31 0) |v_q#valueAsBitvector_5|)))) (fp ((_ extract 63 63) .cse2) ((_ extract 62 52) .cse2) ((_ extract 51 0) .cse2))) main_~res~0)))) (= (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (_ +zero 11 53)) main_~x~0)) [2018-11-28 17:55:27,998 INFO L448 ceAbstractionStarter]: For program point L72-1(lines 72 75) no Hoare annotation was computed. [2018-11-28 17:55:27,998 INFO L444 ceAbstractionStarter]: At program point L69(line 69) the Hoare annotation is: (= (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (_ +zero 11 53)) main_~x~0) [2018-11-28 17:55:27,998 INFO L448 ceAbstractionStarter]: For program point L69-1(line 69) no Hoare annotation was computed. [2018-11-28 17:55:28,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 05:55:28 BoogieIcfgContainer [2018-11-28 17:55:28,012 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 17:55:28,012 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 17:55:28,013 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 17:55:28,013 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 17:55:28,014 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:55:21" (3/4) ... [2018-11-28 17:55:28,019 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 17:55:28,026 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure fabs_double [2018-11-28 17:55:28,026 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 17:55:28,027 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isinf_double [2018-11-28 17:55:28,027 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 17:55:28,034 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2018-11-28 17:55:28,034 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-11-28 17:55:28,035 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-28 17:55:28,064 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-11-28 17:55:28,065 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == \old(x) [2018-11-28 17:55:28,088 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 17:55:28,088 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 17:55:28,089 INFO L168 Benchmark]: Toolchain (without parser) took 7887.97 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.1 MB). Free memory was 951.3 MB in the beginning and 896.8 MB in the end (delta: 54.5 MB). Peak memory consumption was 165.7 MB. Max. memory is 11.5 GB. [2018-11-28 17:55:28,091 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:55:28,092 INFO L168 Benchmark]: CACSL2BoogieTranslator took 372.33 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 17:55:28,093 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.14 ms. Allocated memory is still 1.0 GB. Free memory was 940.6 MB in the beginning and 935.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-28 17:55:28,094 INFO L168 Benchmark]: Boogie Preprocessor took 44.01 ms. Allocated memory is still 1.0 GB. Free memory is still 935.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:55:28,094 INFO L168 Benchmark]: RCFGBuilder took 766.31 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.1 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -139.3 MB). Peak memory consumption was 13.9 MB. Max. memory is 11.5 GB. [2018-11-28 17:55:28,095 INFO L168 Benchmark]: TraceAbstraction took 6586.81 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 903.5 MB in the end (delta: 171.1 MB). Peak memory consumption was 171.1 MB. Max. memory is 11.5 GB. [2018-11-28 17:55:28,097 INFO L168 Benchmark]: Witness Printer took 76.14 ms. Allocated memory is still 1.1 GB. Free memory was 903.5 MB in the beginning and 896.8 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2018-11-28 17:55:28,102 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 372.33 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 MB in the beginning and 940.6 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 31.14 ms. Allocated memory is still 1.0 GB. Free memory was 940.6 MB in the beginning and 935.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 44.01 ms. Allocated memory is still 1.0 GB. Free memory is still 935.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 766.31 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.1 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -139.3 MB). Peak memory consumption was 13.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 6586.81 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 903.5 MB in the end (delta: 171.1 MB). Peak memory consumption was 171.1 MB. Max. memory is 11.5 GB. * Witness Printer took 76.14 ms. Allocated memory is still 1.1 GB. Free memory was 903.5 MB in the beginning and 896.8 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 73]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 46]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: x == \old(x) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 30 locations, 1 error locations. SAFE Result, 6.5s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 2.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 44 SDtfs, 7 SDslu, 129 SDs, 0 SdLazy, 84 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 51 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 12 PreInvPairs, 15 NumberOfFragments, 100 HoareAnnotationTreeSize, 12 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 3.8s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 45 ConstructedInterpolants, 13 QuantifiedInterpolants, 19473 SizeOfPredicates, 7 NumberOfNonLiveVariables, 137 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...