/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0250a_true-unreach-call.c --full-output --architecture 32bit --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5eb3fea6 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 ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0250a_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 78ea74dfa7532b5891dcf798c387cbc67437d79b --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false ................................................................................................................................................................................................................................................................................................................ 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 ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0250a_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 78ea74dfa7532b5891dcf798c387cbc67437d79b --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5eb3fea [2018-09-21 18:16:06,960 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 18:16:06,961 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 18:16:06,974 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 18:16:06,974 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 18:16:06,976 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 18:16:06,978 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 18:16:06,980 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 18:16:06,982 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 18:16:06,984 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 18:16:06,985 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 18:16:06,989 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 18:16:06,990 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 18:16:06,991 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 18:16:06,998 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 18:16:07,000 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 18:16:07,001 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 18:16:07,003 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 18:16:07,005 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 18:16:07,010 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 18:16:07,013 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 18:16:07,014 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 18:16:07,017 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 18:16:07,018 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 18:16:07,018 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 18:16:07,020 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 18:16:07,021 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 18:16:07,022 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 18:16:07,022 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 18:16:07,025 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 18:16:07,025 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 18:16:07,026 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 18:16:07,026 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 18:16:07,026 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 18:16:07,027 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 18:16:07,028 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 18:16:07,028 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-21 18:16:07,060 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 18:16:07,061 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 18:16:07,062 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 18:16:07,062 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 18:16:07,066 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 18:16:07,066 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 18:16:07,067 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 18:16:07,067 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 18:16:07,067 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 18:16:07,067 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-21 18:16:07,067 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 18:16:07,068 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 18:16:07,068 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 18:16:07,068 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 18:16:07,068 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 18:16:07,068 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 18:16:07,069 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 18:16:07,070 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 18:16:07,070 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 18:16:07,070 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 18:16:07,070 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 18:16:07,070 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 18:16:07,071 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:16:07,071 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 18:16:07,071 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 18:16:07,071 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 18:16:07,072 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-21 18:16:07,072 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 18:16:07,072 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-21 18:16:07,072 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 -> 78ea74dfa7532b5891dcf798c387cbc67437d79b Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false [2018-09-21 18:16:07,128 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 18:16:07,148 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 18:16:07,155 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 18:16:07,156 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 18:16:07,158 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 18:16:07,158 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0250a_true-unreach-call.c [2018-09-21 18:16:07,518 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef23724ca/71b98a77ce4d4207bce2883d9cf680d3/FLAGa02265a60 [2018-09-21 18:16:07,714 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 18:16:07,714 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0250a_true-unreach-call.c [2018-09-21 18:16:07,724 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef23724ca/71b98a77ce4d4207bce2883d9cf680d3/FLAGa02265a60 [2018-09-21 18:16:07,743 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef23724ca/71b98a77ce4d4207bce2883d9cf680d3 [2018-09-21 18:16:07,747 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 18:16:07,750 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 18:16:07,751 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 18:16:07,751 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 18:16:07,758 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 18:16:07,759 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:16:07" (1/1) ... [2018-09-21 18:16:07,762 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@550ba157 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:16:07, skipping insertion in model container [2018-09-21 18:16:07,762 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:16:07" (1/1) ... [2018-09-21 18:16:07,775 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 18:16:08,113 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:16:08,134 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 18:16:08,216 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:16:08,257 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:16:08 WrapperNode [2018-09-21 18:16:08,257 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 18:16:08,258 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 18:16:08,258 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 18:16:08,258 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 18:16:08,275 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:16:08" (1/1) ... [2018-09-21 18:16:08,275 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:16:08" (1/1) ... [2018-09-21 18:16:08,294 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:16:08" (1/1) ... [2018-09-21 18:16:08,294 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:16:08" (1/1) ... [2018-09-21 18:16:08,310 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:16:08" (1/1) ... [2018-09-21 18:16:08,321 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:16:08" (1/1) ... [2018-09-21 18:16:08,325 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:16:08" (1/1) ... [2018-09-21 18:16:08,330 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 18:16:08,331 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 18:16:08,331 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 18:16:08,331 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 18:16:08,332 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:16:08" (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 [2018-09-21 18:16:08,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 18:16:08,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 18:16:08,492 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_float [2018-09-21 18:16:08,492 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-09-21 18:16:08,492 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-09-21 18:16:08,492 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-09-21 18:16:08,492 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_asinf [2018-09-21 18:16:08,492 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 18:16:08,493 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 18:16:08,493 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-21 18:16:08,493 INFO L130 BoogieDeclarations]: Found specification of procedure floor_float [2018-09-21 18:16:08,493 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 18:16:08,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-09-21 18:16:08,493 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-09-21 18:16:08,493 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 18:16:08,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-09-21 18:16:08,494 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-09-21 18:16:08,494 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-09-21 18:16:08,494 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-09-21 18:16:08,494 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-09-21 18:16:08,494 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_asinf [2018-09-21 18:16:08,494 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 18:16:08,495 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 18:16:08,495 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 18:16:08,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-09-21 18:16:08,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-09-21 18:16:09,583 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 18:16:09,584 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:16:09 BoogieIcfgContainer [2018-09-21 18:16:09,584 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 18:16:09,585 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 18:16:09,585 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 18:16:09,590 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 18:16:09,590 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 06:16:07" (1/3) ... [2018-09-21 18:16:09,591 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fe67b09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:16:09, skipping insertion in model container [2018-09-21 18:16:09,591 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:16:08" (2/3) ... [2018-09-21 18:16:09,592 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fe67b09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:16:09, skipping insertion in model container [2018-09-21 18:16:09,593 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:16:09" (3/3) ... [2018-09-21 18:16:09,595 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0250a_true-unreach-call.c [2018-09-21 18:16:09,606 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 18:16:09,616 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 18:16:09,663 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 18:16:09,664 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 18:16:09,664 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 18:16:09,664 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 18:16:09,665 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 18:16:09,665 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 18:16:09,666 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 18:16:09,666 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 18:16:09,666 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 18:16:09,687 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states. [2018-09-21 18:16:09,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-09-21 18:16:09,703 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:16:09,704 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:16:09,707 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:16:09,714 INFO L82 PathProgramCache]: Analyzing trace with hash -2065751243, now seen corresponding path program 1 times [2018-09-21 18:16:09,717 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 18:16:09,717 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 18:16:09,770 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:16:09,770 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:16:09,770 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:16:09,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:16:09,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:16:09,899 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:16:09,899 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 18:16:09,903 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 18:16:09,920 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 18:16:09,921 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:16:09,924 INFO L87 Difference]: Start difference. First operand 134 states. Second operand 2 states. [2018-09-21 18:16:09,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:16:09,954 INFO L93 Difference]: Finished difference Result 134 states and 151 transitions. [2018-09-21 18:16:09,954 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 18:16:09,956 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-09-21 18:16:09,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:16:09,970 INFO L225 Difference]: With dead ends: 134 [2018-09-21 18:16:09,971 INFO L226 Difference]: Without dead ends: 130 [2018-09-21 18:16:09,973 INFO L606 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 [2018-09-21 18:16:09,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2018-09-21 18:16:10,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2018-09-21 18:16:10,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2018-09-21 18:16:10,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 147 transitions. [2018-09-21 18:16:10,027 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 147 transitions. Word has length 21 [2018-09-21 18:16:10,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:16:10,027 INFO L480 AbstractCegarLoop]: Abstraction has 130 states and 147 transitions. [2018-09-21 18:16:10,028 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 18:16:10,028 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 147 transitions. [2018-09-21 18:16:10,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-09-21 18:16:10,029 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:16:10,029 INFO L376 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, 1, 1, 1, 1] [2018-09-21 18:16:10,029 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:16:10,030 INFO L82 PathProgramCache]: Analyzing trace with hash 2088857343, now seen corresponding path program 1 times [2018-09-21 18:16:10,030 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-21 18:16:10,030 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-21 18:16:10,031 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:16:10,031 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:16:10,032 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-21 18:16:10,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-21 18:16:10,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-21 18:16:10,155 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-21 18:16:10,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 06:16:10 BoogieIcfgContainer [2018-09-21 18:16:10,223 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 18:16:10,223 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 18:16:10,223 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 18:16:10,224 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 18:16:10,224 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:16:09" (3/4) ... [2018-09-21 18:16:10,229 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-21 18:16:10,229 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 18:16:10,230 INFO L168 Benchmark]: Toolchain (without parser) took 2482.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 954.6 MB in the beginning and 1.1 GB in the end (delta: -101.7 MB). Peak memory consumption was 37.2 MB. Max. memory is 11.5 GB. [2018-09-21 18:16:10,232 INFO L168 Benchmark]: CDTParser took 0.17 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. [2018-09-21 18:16:10,233 INFO L168 Benchmark]: CACSL2BoogieTranslator took 506.38 ms. Allocated memory is still 1.0 GB. Free memory was 954.6 MB in the beginning and 938.4 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-09-21 18:16:10,234 INFO L168 Benchmark]: Boogie Preprocessor took 72.63 ms. Allocated memory is still 1.0 GB. Free memory was 938.4 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. [2018-09-21 18:16:10,234 INFO L168 Benchmark]: RCFGBuilder took 1253.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 933.1 MB in the beginning and 1.1 GB in the end (delta: -150.7 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2018-09-21 18:16:10,236 INFO L168 Benchmark]: TraceAbstraction took 637.57 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: 27.5 MB). Peak memory consumption was 27.5 MB. Max. memory is 11.5 GB. [2018-09-21 18:16:10,236 INFO L168 Benchmark]: Witness Printer took 6.13 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. [2018-09-21 18:16:10,241 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 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 506.38 ms. Allocated memory is still 1.0 GB. Free memory was 954.6 MB in the beginning and 938.4 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 72.63 ms. Allocated memory is still 1.0 GB. Free memory was 938.4 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. * RCFGBuilder took 1253.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 933.1 MB in the beginning and 1.1 GB in the end (delta: -150.7 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 637.57 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: 27.5 MB). Peak memory consumption was 27.5 MB. Max. memory is 11.5 GB. * Witness Printer took 6.13 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.plugins.generator.traceabstraction: - UnprovableResult [Line: 233]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 58, overapproximation of someUnaryDOUBLEoperation at line 147, overapproximation of bitwiseAnd at line 161, overapproximation of someUnaryFLOAToperation at line 145, overapproximation of someBinaryArithmeticFLOAToperation at line 164. Possible FailurePath: [L12] static const float huge_floor = 1.0e30; [L60] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; [L143-L151] static const float one_asin = 1.0000000000e+00, huge_asin = 1.000e+30, pio2_hi_asin = 1.57079637050628662109375f, pio2_lo_asin = -4.37113900018624283e-8f, pio4_hi_asin = 0.785398185253143310546875f, pS0_asin = 1.6666667163e-01, pS1_asin = -3.2556581497e-01, pS2_asin = 2.0121252537e-01, pS3_asin = -4.0055535734e-02, pS4_asin = 7.9153501429e-04, pS5_asin = 3.4793309169e-05, qS1_asin = -2.4033949375e+00, qS2_asin = 2.0209457874e+00, qS3_asin = -6.8828397989e-01, qS4_asin = 7.7038154006e-02; VAL [\old(huge_asin)=6442450967, \old(huge_floor)=6442450948, \old(one_asin)=6442450951, \old(one_sqrt)=6442450949, \old(pio2_hi_asin)=6442450950, \old(pio2_lo_asin)=6442450961, \old(pio4_hi_asin)=6442450952, \old(pS0_asin)=6442450959, \old(pS1_asin)=6442450954, \old(pS2_asin)=6442450947, \old(pS3_asin)=6442450958, \old(pS4_asin)=6442450964, \old(pS5_asin)=6442450956, \old(qS1_asin)=6442450968, \old(qS2_asin)=6442450965, \old(qS3_asin)=6442450945, \old(qS4_asin)=6442450962, \old(tiny_sqrt)=6442450963, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L228] float x = 1.0f / 0.0f; VAL [huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L229] CALL, EXPR __ieee754_asinf(x) VAL [\old(x)=6442450955, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L154] float t, w, p, q, c, r, s; [L155] __int32_t hx, ix; VAL [\old(x)=6442450955, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450955] [L157] FCALL ieee_float_shape_type gf_u; VAL [\old(x)=6442450955, gf_u={6442450966:0}, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450955] [L158] FCALL gf_u.value = (x) VAL [\old(x)=6442450955, gf_u={6442450966:0}, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450955] [L159] EXPR, FCALL gf_u.word VAL [\old(x)=6442450955, gf_u={6442450966:0}, gf_u.word=6442450944, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450955] [L159] (hx) = gf_u.word VAL [\old(x)=6442450955, gf_u={6442450966:0}, gf_u.word=6442450944, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, hx=-2147483648, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450955] [L159] FCALL (hx) = gf_u.word VAL [(hx) = gf_u.word=6442450960, \old(x)=6442450955, gf_u={6442450966:0}, gf_u.word=6442450944, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, hx=-2147483648, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450955] [L160] COND FALSE !(0) VAL [\old(x)=6442450955, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, hx=-2147483648, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450955] [L161] ix = hx & 0x7fffffff VAL [\old(x)=6442450955, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, hx=-2147483648, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450955] [L162] COND TRUE ix == 0x3f800000 [L164] RET return x * pio2_hi_asin + x * pio2_lo_asin; VAL [\old(x)=6442450955, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, hx=-2147483648, ix=1065353216, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450955] [L229] EXPR __ieee754_asinf(x) VAL [__ieee754_asinf(x)=6442450953, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450955] [L229] float res = __ieee754_asinf(x); [L232] CALL, EXPR isnan_float(res) VAL [\old(x)=6442450953, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L58] RET return x != x; VAL [\old(x)=6442450953, \result=0, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450953] [L232] EXPR isnan_float(res) VAL [huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, isnan_float(res)=0, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, res=6442450953, tiny_sqrt=1/1000000000000000000000000000000, x=6442450955] [L232] COND TRUE !isnan_float(res) [L233] __VERIFIER_error() VAL [huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, res=6442450953, tiny_sqrt=1/1000000000000000000000000000000, x=6442450955] - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 169 locations, 1 error locations. UNSAFE Result, 0.5s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 151 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=134occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 51 NumberOfCodeBlocks, 51 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 400 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-5eb3fea [2018-09-21 18:16:12,692 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-21 18:16:12,693 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-21 18:16:12,707 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-21 18:16:12,708 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-21 18:16:12,709 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-21 18:16:12,710 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-21 18:16:12,713 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-21 18:16:12,714 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-21 18:16:12,716 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-21 18:16:12,717 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-21 18:16:12,717 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-21 18:16:12,718 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-21 18:16:12,720 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-21 18:16:12,721 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-21 18:16:12,722 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-21 18:16:12,723 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-21 18:16:12,725 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-21 18:16:12,727 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-21 18:16:12,729 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-21 18:16:12,730 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-21 18:16:12,732 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-21 18:16:12,735 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-21 18:16:12,735 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-21 18:16:12,735 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-21 18:16:12,736 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-21 18:16:12,738 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-21 18:16:12,739 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-21 18:16:12,740 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-21 18:16:12,741 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-21 18:16:12,741 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-21 18:16:12,742 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-21 18:16:12,743 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-21 18:16:12,743 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-21 18:16:12,744 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-21 18:16:12,745 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-21 18:16:12,745 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-21 18:16:12,762 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-21 18:16:12,762 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-21 18:16:12,763 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-21 18:16:12,763 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-21 18:16:12,764 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-21 18:16:12,764 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-21 18:16:12,765 INFO L133 SettingsManager]: * Use SBE=true [2018-09-21 18:16:12,765 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-21 18:16:12,765 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-21 18:16:12,765 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-21 18:16:12,765 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-21 18:16:12,766 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-21 18:16:12,766 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-21 18:16:12,766 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-21 18:16:12,766 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-21 18:16:12,766 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-21 18:16:12,768 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-21 18:16:12,768 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-21 18:16:12,768 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-21 18:16:12,769 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-21 18:16:12,769 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-21 18:16:12,769 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-21 18:16:12,769 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-21 18:16:12,769 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-21 18:16:12,770 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-21 18:16:12,770 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-21 18:16:12,770 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-21 18:16:12,770 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-21 18:16:12,770 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-21 18:16:12,771 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-21 18:16:12,771 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-21 18:16:12,771 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 -> 78ea74dfa7532b5891dcf798c387cbc67437d79b Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false [2018-09-21 18:16:12,825 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-21 18:16:12,842 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-21 18:16:12,848 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-21 18:16:12,850 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-21 18:16:12,850 INFO L276 PluginConnector]: CDTParser initialized [2018-09-21 18:16:12,851 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0250a_true-unreach-call.c [2018-09-21 18:16:13,230 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba6496ef2/da86df049a754f1680bac9262369ab31/FLAGbfdce1cda [2018-09-21 18:16:13,454 INFO L277 CDTParser]: Found 1 translation units. [2018-09-21 18:16:13,455 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0250a_true-unreach-call.c [2018-09-21 18:16:13,465 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba6496ef2/da86df049a754f1680bac9262369ab31/FLAGbfdce1cda [2018-09-21 18:16:13,484 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba6496ef2/da86df049a754f1680bac9262369ab31 [2018-09-21 18:16:13,489 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-21 18:16:13,493 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-21 18:16:13,494 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-21 18:16:13,495 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-21 18:16:13,502 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-21 18:16:13,503 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:16:13" (1/1) ... [2018-09-21 18:16:13,506 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55ade425 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:16:13, skipping insertion in model container [2018-09-21 18:16:13,507 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 06:16:13" (1/1) ... [2018-09-21 18:16:13,519 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-21 18:16:13,874 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:16:13,901 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-21 18:16:14,002 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-21 18:16:14,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:16:14 WrapperNode [2018-09-21 18:16:14,063 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-21 18:16:14,064 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-21 18:16:14,064 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-21 18:16:14,064 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-21 18:16:14,081 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:16:14" (1/1) ... [2018-09-21 18:16:14,082 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:16:14" (1/1) ... [2018-09-21 18:16:14,102 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:16:14" (1/1) ... [2018-09-21 18:16:14,102 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:16:14" (1/1) ... [2018-09-21 18:16:14,119 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:16:14" (1/1) ... [2018-09-21 18:16:14,137 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:16:14" (1/1) ... [2018-09-21 18:16:14,147 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:16:14" (1/1) ... [2018-09-21 18:16:14,156 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-21 18:16:14,157 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-21 18:16:14,157 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-21 18:16:14,157 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-21 18:16:14,159 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:16:14" (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 [2018-09-21 18:16:14,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-21 18:16:14,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-21 18:16:14,309 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_float [2018-09-21 18:16:14,309 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-09-21 18:16:14,309 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-09-21 18:16:14,309 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-09-21 18:16:14,309 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_asinf [2018-09-21 18:16:14,310 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-21 18:16:14,310 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-21 18:16:14,310 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-21 18:16:14,310 INFO L130 BoogieDeclarations]: Found specification of procedure floor_float [2018-09-21 18:16:14,310 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-21 18:16:14,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-09-21 18:16:14,311 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-21 18:16:14,312 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-21 18:16:14,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-21 18:16:14,312 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-09-21 18:16:14,312 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-09-21 18:16:14,312 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-09-21 18:16:14,312 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-09-21 18:16:14,313 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_asinf [2018-09-21 18:16:14,313 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-21 18:16:14,313 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-21 18:16:14,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-21 18:16:14,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2018-09-21 18:16:14,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-21 18:16:14,711 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:16:14,737 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:16:22,166 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:16:22,178 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:16:24,636 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:16:24,678 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:16:25,232 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:16:25,283 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:16:25,349 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:16:25,362 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-21 18:16:26,200 INFO L373 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-21 18:16:26,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:16:26 BoogieIcfgContainer [2018-09-21 18:16:26,201 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-21 18:16:26,202 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-21 18:16:26,202 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-21 18:16:26,205 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-21 18:16:26,205 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 06:16:13" (1/3) ... [2018-09-21 18:16:26,206 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7af7ce0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:16:26, skipping insertion in model container [2018-09-21 18:16:26,206 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 06:16:14" (2/3) ... [2018-09-21 18:16:26,207 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7af7ce0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 06:16:26, skipping insertion in model container [2018-09-21 18:16:26,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:16:26" (3/3) ... [2018-09-21 18:16:26,209 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0250a_true-unreach-call.c [2018-09-21 18:16:26,216 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-21 18:16:26,224 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-21 18:16:26,258 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-21 18:16:26,258 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-21 18:16:26,259 INFO L382 AbstractCegarLoop]: Hoare is false [2018-09-21 18:16:26,259 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-21 18:16:26,259 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-21 18:16:26,259 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-21 18:16:26,259 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-21 18:16:26,259 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-21 18:16:26,260 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-21 18:16:26,280 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states. [2018-09-21 18:16:26,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-09-21 18:16:26,293 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:16:26,294 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:16:26,297 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:16:26,303 INFO L82 PathProgramCache]: Analyzing trace with hash -117059629, now seen corresponding path program 1 times [2018-09-21 18:16:26,309 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:16:26,311 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 [2018-09-21 18:16:26,331 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:16:26,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:16:26,610 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:16:26,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:16:26,629 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:16:26,647 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:16:26,647 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-21 18:16:26,651 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-21 18:16:26,668 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-21 18:16:26,669 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:16:26,672 INFO L87 Difference]: Start difference. First operand 133 states. Second operand 2 states. [2018-09-21 18:16:26,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:16:26,701 INFO L93 Difference]: Finished difference Result 133 states and 150 transitions. [2018-09-21 18:16:26,702 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-21 18:16:26,704 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 20 [2018-09-21 18:16:26,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:16:26,720 INFO L225 Difference]: With dead ends: 133 [2018-09-21 18:16:26,720 INFO L226 Difference]: Without dead ends: 129 [2018-09-21 18:16:26,722 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-21 18:16:26,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2018-09-21 18:16:26,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2018-09-21 18:16:26,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2018-09-21 18:16:26,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 146 transitions. [2018-09-21 18:16:26,782 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 146 transitions. Word has length 20 [2018-09-21 18:16:26,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:16:26,783 INFO L480 AbstractCegarLoop]: Abstraction has 129 states and 146 transitions. [2018-09-21 18:16:26,783 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-21 18:16:26,783 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 146 transitions. [2018-09-21 18:16:26,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-09-21 18:16:26,785 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:16:26,785 INFO L376 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, 1, 1, 1] [2018-09-21 18:16:26,786 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:16:26,786 INFO L82 PathProgramCache]: Analyzing trace with hash 2092864102, now seen corresponding path program 1 times [2018-09-21 18:16:26,787 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:16:26,788 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 [2018-09-21 18:16:26,797 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:16:27,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:16:27,064 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:16:27,154 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 11 treesize of output 8 [2018-09-21 18:16:27,167 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-21 18:16:27,168 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:16:27,193 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:16:27,207 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:16:27,208 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:16:27,292 INFO L477 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 29 treesize of output 21 [2018-09-21 18:16:27,315 INFO L477 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 21 treesize of output 9 [2018-09-21 18:16:27,315 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:16:27,350 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:16:27,383 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:16:27,383 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:16:28,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:16:28,068 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:16:28,092 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:16:28,092 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 18:16:28,094 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 18:16:28,094 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 18:16:28,095 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 18:16:28,095 INFO L87 Difference]: Start difference. First operand 129 states and 146 transitions. Second operand 9 states. [2018-09-21 18:16:36,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:16:36,130 INFO L93 Difference]: Finished difference Result 134 states and 151 transitions. [2018-09-21 18:16:36,134 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-21 18:16:36,134 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 29 [2018-09-21 18:16:36,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:16:36,139 INFO L225 Difference]: With dead ends: 134 [2018-09-21 18:16:36,139 INFO L226 Difference]: Without dead ends: 132 [2018-09-21 18:16:36,141 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2018-09-21 18:16:36,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2018-09-21 18:16:36,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 129. [2018-09-21 18:16:36,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2018-09-21 18:16:36,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 145 transitions. [2018-09-21 18:16:36,156 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 145 transitions. Word has length 29 [2018-09-21 18:16:36,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:16:36,157 INFO L480 AbstractCegarLoop]: Abstraction has 129 states and 145 transitions. [2018-09-21 18:16:36,157 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 18:16:36,157 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 145 transitions. [2018-09-21 18:16:36,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-09-21 18:16:36,159 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:16:36,159 INFO L376 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, 1, 1, 1, 1] [2018-09-21 18:16:36,159 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:16:36,160 INFO L82 PathProgramCache]: Analyzing trace with hash 1585216761, now seen corresponding path program 1 times [2018-09-21 18:16:36,161 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:16:36,161 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-09-21 18:16:36,173 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:16:36,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:16:36,473 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:16:39,998 WARN L178 SmtUtils]: Spent 861.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2018-09-21 18:16:43,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:16:43,434 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:16:43,459 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:16:43,459 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 18:16:43,460 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 18:16:43,460 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 18:16:43,460 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 18:16:43,460 INFO L87 Difference]: Start difference. First operand 129 states and 145 transitions. Second operand 9 states. [2018-09-21 18:16:48,763 WARN L178 SmtUtils]: Spent 1.90 s on a formula simplification that was a NOOP. DAG size: 9 [2018-09-21 18:16:58,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:16:58,529 INFO L93 Difference]: Finished difference Result 136 states and 152 transitions. [2018-09-21 18:16:58,530 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-09-21 18:16:58,530 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 30 [2018-09-21 18:16:58,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:16:58,532 INFO L225 Difference]: With dead ends: 136 [2018-09-21 18:16:58,532 INFO L226 Difference]: Without dead ends: 131 [2018-09-21 18:16:58,533 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 12.2s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-09-21 18:16:58,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2018-09-21 18:16:58,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 129. [2018-09-21 18:16:58,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2018-09-21 18:16:58,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 144 transitions. [2018-09-21 18:16:58,552 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 144 transitions. Word has length 30 [2018-09-21 18:16:58,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:16:58,552 INFO L480 AbstractCegarLoop]: Abstraction has 129 states and 144 transitions. [2018-09-21 18:16:58,552 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 18:16:58,552 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 144 transitions. [2018-09-21 18:16:58,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-09-21 18:16:58,554 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:16:58,555 INFO L376 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, 1, 1, 1, 1, 1, 1] [2018-09-21 18:16:58,555 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:16:58,556 INFO L82 PathProgramCache]: Analyzing trace with hash 1154633071, now seen corresponding path program 1 times [2018-09-21 18:16:58,556 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:16:58,557 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2018-09-21 18:16:58,570 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-09-21 18:16:59,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:16:59,806 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:16:59,838 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 11 treesize of output 8 [2018-09-21 18:16:59,842 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-21 18:16:59,843 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:16:59,847 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:16:59,860 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:16:59,861 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:16:59,883 INFO L477 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 29 treesize of output 21 [2018-09-21 18:16:59,888 INFO L477 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 21 treesize of output 9 [2018-09-21 18:16:59,888 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:16:59,894 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:16:59,897 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:16:59,898 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:17:00,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:17:00,053 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:17:00,081 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:17:00,081 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 18:17:00,082 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 18:17:00,082 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 18:17:00,082 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 18:17:00,083 INFO L87 Difference]: Start difference. First operand 129 states and 144 transitions. Second operand 9 states. [2018-09-21 18:17:06,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:17:06,101 INFO L93 Difference]: Finished difference Result 134 states and 148 transitions. [2018-09-21 18:17:06,102 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-21 18:17:06,102 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 32 [2018-09-21 18:17:06,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:17:06,104 INFO L225 Difference]: With dead ends: 134 [2018-09-21 18:17:06,104 INFO L226 Difference]: Without dead ends: 108 [2018-09-21 18:17:06,105 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2018-09-21 18:17:06,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2018-09-21 18:17:06,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2018-09-21 18:17:06,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2018-09-21 18:17:06,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 120 transitions. [2018-09-21 18:17:06,122 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 120 transitions. Word has length 32 [2018-09-21 18:17:06,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:17:06,122 INFO L480 AbstractCegarLoop]: Abstraction has 108 states and 120 transitions. [2018-09-21 18:17:06,122 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 18:17:06,123 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 120 transitions. [2018-09-21 18:17:06,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2018-09-21 18:17:06,127 INFO L368 BasicCegarLoop]: Found error trace [2018-09-21 18:17:06,128 INFO L376 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-21 18:17:06,128 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-21 18:17:06,128 INFO L82 PathProgramCache]: Analyzing trace with hash -1692884503, now seen corresponding path program 1 times [2018-09-21 18:17:06,130 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-21 18:17:06,130 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-09-21 18:17:06,136 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-21 18:17:07,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-21 18:17:07,568 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-21 18:17:07,603 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 11 treesize of output 8 [2018-09-21 18:17:07,607 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-21 18:17:07,608 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:17:07,611 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:17:07,624 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:17:07,624 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-21 18:17:07,644 INFO L477 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 29 treesize of output 21 [2018-09-21 18:17:07,663 INFO L477 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 21 treesize of output 9 [2018-09-21 18:17:07,664 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-21 18:17:07,689 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:17:07,713 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-21 18:17:07,713 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-21 18:17:07,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-21 18:17:07,918 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-21 18:17:07,957 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-21 18:17:07,958 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-21 18:17:07,958 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-21 18:17:07,958 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-21 18:17:07,959 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-21 18:17:07,959 INFO L87 Difference]: Start difference. First operand 108 states and 120 transitions. Second operand 9 states. [2018-09-21 18:17:11,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-21 18:17:11,211 INFO L93 Difference]: Finished difference Result 100 states and 112 transitions. [2018-09-21 18:17:11,212 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-21 18:17:11,212 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 76 [2018-09-21 18:17:11,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-21 18:17:11,213 INFO L225 Difference]: With dead ends: 100 [2018-09-21 18:17:11,213 INFO L226 Difference]: Without dead ends: 0 [2018-09-21 18:17:11,214 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2018-09-21 18:17:11,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-21 18:17:11,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-21 18:17:11,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-21 18:17:11,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-21 18:17:11,215 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 76 [2018-09-21 18:17:11,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-21 18:17:11,215 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-21 18:17:11,216 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-21 18:17:11,217 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-21 18:17:11,217 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-21 18:17:11,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 06:17:11 BoogieIcfgContainer [2018-09-21 18:17:11,223 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-21 18:17:11,223 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-21 18:17:11,223 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-21 18:17:11,224 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-21 18:17:11,225 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 06:16:26" (3/4) ... [2018-09-21 18:17:11,229 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-09-21 18:17:11,241 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2018-09-21 18:17:11,242 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-09-21 18:17:11,242 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure fabs_float [2018-09-21 18:17:11,242 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure floor_float [2018-09-21 18:17:11,245 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-09-21 18:17:11,245 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_asinf [2018-09-21 18:17:11,245 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_sqrtf [2018-09-21 18:17:11,257 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 38 nodes and edges [2018-09-21 18:17:11,259 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2018-09-21 18:17:11,260 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-09-21 18:17:11,382 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-21 18:17:11,383 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-21 18:17:11,384 INFO L168 Benchmark]: Toolchain (without parser) took 57894.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 210.2 MB). Free memory was 951.9 MB in the beginning and 1.2 GB in the end (delta: -245.2 MB). Peak memory consumption was 290.6 MB. Max. memory is 11.5 GB. [2018-09-21 18:17:11,384 INFO L168 Benchmark]: CDTParser took 0.21 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. [2018-09-21 18:17:11,385 INFO L168 Benchmark]: CACSL2BoogieTranslator took 569.50 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 935.8 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-09-21 18:17:11,385 INFO L168 Benchmark]: Boogie Preprocessor took 92.15 ms. Allocated memory is still 1.0 GB. Free memory was 935.8 MB in the beginning and 930.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-09-21 18:17:11,386 INFO L168 Benchmark]: RCFGBuilder took 12044.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.1 MB). Free memory was 930.4 MB in the beginning and 1.1 GB in the end (delta: -163.3 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2018-09-21 18:17:11,386 INFO L168 Benchmark]: TraceAbstraction took 45021.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 825.0 MB in the end (delta: 268.8 MB). Peak memory consumption was 268.8 MB. Max. memory is 11.5 GB. [2018-09-21 18:17:11,390 INFO L168 Benchmark]: Witness Printer took 159.58 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 56.1 MB). Free memory was 825.0 MB in the beginning and 1.2 GB in the end (delta: -372.2 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. [2018-09-21 18:17:11,393 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 569.50 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 935.8 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 92.15 ms. Allocated memory is still 1.0 GB. Free memory was 935.8 MB in the beginning and 930.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 12044.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.1 MB). Free memory was 930.4 MB in the beginning and 1.1 GB in the end (delta: -163.3 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 45021.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 825.0 MB in the end (delta: 268.8 MB). Peak memory consumption was 268.8 MB. Max. memory is 11.5 GB. * Witness Printer took 159.58 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 56.1 MB). Free memory was 825.0 MB in the beginning and 1.2 GB in the end (delta: -372.2 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 233]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 168 locations, 1 error locations. SAFE Result, 44.9s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 32.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 645 SDtfs, 350 SDslu, 3052 SDs, 0 SdLazy, 382 SolverSat, 29 SolverUnsat, 6 SolverUnknown, 0 SolverNotchecked, 23.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 207 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 14.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=133occurred 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, 5 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 3.0s SatisfiabilityAnalysisTime, 8.9s InterpolantComputationTime, 187 NumberOfCodeBlocks, 187 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 182 ConstructedInterpolants, 20 QuantifiedInterpolants, 42329 SizeOfPredicates, 28 NumberOfNonLiveVariables, 649 ConjunctsInSsa, 39 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...