/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1092c_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 40ef5092 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/double_req_bl_1092c_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 7089bbc1d64fdab3968ddd6407c4dd9659b97437 ............................................................................................................................................................................................................................................................................................................................... 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/double_req_bl_1092c_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 7089bbc1d64fdab3968ddd6407c4dd9659b97437 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-40ef509 [2018-09-20 15:03:30,013 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 15:03:30,015 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 15:03:30,028 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 15:03:30,028 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 15:03:30,029 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 15:03:30,031 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 15:03:30,033 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 15:03:30,035 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 15:03:30,036 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 15:03:30,037 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 15:03:30,037 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 15:03:30,039 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 15:03:30,040 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 15:03:30,041 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 15:03:30,042 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 15:03:30,043 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 15:03:30,045 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 15:03:30,047 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 15:03:30,049 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 15:03:30,051 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 15:03:30,052 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 15:03:30,055 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 15:03:30,055 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 15:03:30,055 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 15:03:30,057 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 15:03:30,058 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 15:03:30,059 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 15:03:30,060 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 15:03:30,061 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 15:03:30,062 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 15:03:30,063 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 15:03:30,063 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 15:03:30,063 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 15:03:30,064 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 15:03:30,065 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 15:03:30,066 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-20 15:03:30,084 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 15:03:30,085 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 15:03:30,085 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 15:03:30,086 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 15:03:30,086 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 15:03:30,088 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 15:03:30,088 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 15:03:30,088 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 15:03:30,088 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 15:03:30,089 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-20 15:03:30,089 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 15:03:30,089 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 15:03:30,089 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 15:03:30,089 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 15:03:30,091 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 15:03:30,091 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 15:03:30,091 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 15:03:30,091 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 15:03:30,092 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 15:03:30,092 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 15:03:30,092 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 15:03:30,092 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 15:03:30,092 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 15:03:30,095 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 15:03:30,095 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 15:03:30,095 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 15:03:30,095 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-20 15:03:30,096 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 15:03:30,096 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-20 15:03:30,096 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 -> 7089bbc1d64fdab3968ddd6407c4dd9659b97437 [2018-09-20 15:03:30,158 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 15:03:30,171 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 15:03:30,176 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 15:03:30,177 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 15:03:30,178 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 15:03:30,179 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1092c_true-unreach-call.c [2018-09-20 15:03:30,554 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8122aded7/bb58dd1c5d1d4861aa81fa22e82a5d58/FLAG504537a0c [2018-09-20 15:03:30,726 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 15:03:30,727 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1092c_true-unreach-call.c [2018-09-20 15:03:30,734 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8122aded7/bb58dd1c5d1d4861aa81fa22e82a5d58/FLAG504537a0c [2018-09-20 15:03:30,752 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8122aded7/bb58dd1c5d1d4861aa81fa22e82a5d58 [2018-09-20 15:03:30,757 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 15:03:30,761 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 15:03:30,762 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 15:03:30,763 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 15:03:30,770 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 15:03:30,771 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:03:30" (1/1) ... [2018-09-20 15:03:30,775 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fe33081 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:03:30, skipping insertion in model container [2018-09-20 15:03:30,775 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:03:30" (1/1) ... [2018-09-20 15:03:30,788 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 15:03:31,048 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:03:31,065 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 15:03:31,101 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:03:31,140 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:03:31 WrapperNode [2018-09-20 15:03:31,140 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 15:03:31,141 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 15:03:31,141 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 15:03:31,141 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 15:03:31,163 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:03:31" (1/1) ... [2018-09-20 15:03:31,164 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:03:31" (1/1) ... [2018-09-20 15:03:31,179 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:03:31" (1/1) ... [2018-09-20 15:03:31,179 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:03:31" (1/1) ... [2018-09-20 15:03:31,200 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:03:31" (1/1) ... [2018-09-20 15:03:31,208 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:03:31" (1/1) ... [2018-09-20 15:03:31,214 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:03:31" (1/1) ... [2018-09-20 15:03:31,225 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 15:03:31,225 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 15:03:31,226 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 15:03:31,226 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 15:03:31,227 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:03:31" (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 [2018-09-20 15:03:31,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 15:03:31,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 15:03:31,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ceil_double [2018-09-20 15:03:31,373 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2018-09-20 15:03:31,373 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 15:03:31,373 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 15:03:31,373 INFO L130 BoogieDeclarations]: Found specification of procedure ceil_double [2018-09-20 15:03:31,373 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-20 15:03:31,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-09-20 15:03:31,374 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-09-20 15:03:31,374 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-20 15:03:31,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-09-20 15:03:31,374 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-09-20 15:03:31,374 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2018-09-20 15:03:31,374 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 15:03:31,375 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 15:03:31,375 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 15:03:31,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-09-20 15:03:31,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-09-20 15:03:32,127 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 15:03:32,128 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:03:32 BoogieIcfgContainer [2018-09-20 15:03:32,128 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 15:03:32,130 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 15:03:32,130 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 15:03:32,134 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 15:03:32,135 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 03:03:30" (1/3) ... [2018-09-20 15:03:32,135 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4debc1e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:03:32, skipping insertion in model container [2018-09-20 15:03:32,136 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:03:31" (2/3) ... [2018-09-20 15:03:32,136 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4debc1e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:03:32, skipping insertion in model container [2018-09-20 15:03:32,136 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:03:32" (3/3) ... [2018-09-20 15:03:32,139 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1092c_true-unreach-call.c [2018-09-20 15:03:32,150 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 15:03:32,160 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 15:03:32,211 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 15:03:32,212 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 15:03:32,212 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 15:03:32,212 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 15:03:32,213 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 15:03:32,213 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 15:03:32,213 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 15:03:32,214 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 15:03:32,214 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 15:03:32,237 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states. [2018-09-20 15:03:32,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-09-20 15:03:32,245 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:03:32,246 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] [2018-09-20 15:03:32,249 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:03:32,255 INFO L82 PathProgramCache]: Analyzing trace with hash 1413949661, now seen corresponding path program 1 times [2018-09-20 15:03:32,257 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 15:03:32,258 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 15:03:32,311 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:03:32,311 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:03:32,312 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:03:32,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:03:32,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:03:32,424 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:03:32,425 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-20 15:03:32,430 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-20 15:03:32,447 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-20 15:03:32,449 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:03:32,453 INFO L87 Difference]: Start difference. First operand 84 states. Second operand 2 states. [2018-09-20 15:03:32,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:03:32,491 INFO L93 Difference]: Finished difference Result 160 states and 203 transitions. [2018-09-20 15:03:32,491 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-20 15:03:32,492 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 25 [2018-09-20 15:03:32,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:03:32,503 INFO L225 Difference]: With dead ends: 160 [2018-09-20 15:03:32,503 INFO L226 Difference]: Without dead ends: 80 [2018-09-20 15:03:32,508 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 [2018-09-20 15:03:32,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2018-09-20 15:03:32,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2018-09-20 15:03:32,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2018-09-20 15:03:32,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 94 transitions. [2018-09-20 15:03:32,553 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 94 transitions. Word has length 25 [2018-09-20 15:03:32,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:03:32,553 INFO L480 AbstractCegarLoop]: Abstraction has 80 states and 94 transitions. [2018-09-20 15:03:32,553 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-20 15:03:32,554 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 94 transitions. [2018-09-20 15:03:32,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-09-20 15:03:32,556 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:03:32,556 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] [2018-09-20 15:03:32,556 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:03:32,557 INFO L82 PathProgramCache]: Analyzing trace with hash 422175499, now seen corresponding path program 1 times [2018-09-20 15:03:32,557 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 15:03:32,557 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 15:03:32,560 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:03:32,560 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:03:32,560 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:03:32,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 15:03:32,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 15:03:32,882 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-20 15:03:32,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 03:03:32 BoogieIcfgContainer [2018-09-20 15:03:32,956 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 15:03:32,956 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 15:03:32,956 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 15:03:32,956 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 15:03:32,957 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:03:32" (3/4) ... [2018-09-20 15:03:32,962 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-20 15:03:32,962 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 15:03:32,965 INFO L168 Benchmark]: Toolchain (without parser) took 2206.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 950.5 MB in the beginning and 1.1 GB in the end (delta: -126.1 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. [2018-09-20 15:03:32,967 INFO L168 Benchmark]: CDTParser took 0.22 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. [2018-09-20 15:03:32,968 INFO L168 Benchmark]: CACSL2BoogieTranslator took 378.56 ms. Allocated memory is still 1.0 GB. Free memory was 950.5 MB in the beginning and 939.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-20 15:03:32,969 INFO L168 Benchmark]: Boogie Preprocessor took 83.72 ms. Allocated memory is still 1.0 GB. Free memory was 939.8 MB in the beginning and 934.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-09-20 15:03:32,970 INFO L168 Benchmark]: RCFGBuilder took 902.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 934.4 MB in the beginning and 1.1 GB in the end (delta: -176.7 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2018-09-20 15:03:32,972 INFO L168 Benchmark]: TraceAbstraction took 825.69 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: 27.6 MB). Peak memory consumption was 27.6 MB. Max. memory is 11.5 GB. [2018-09-20 15:03:32,972 INFO L168 Benchmark]: Witness Printer took 7.43 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. [2018-09-20 15:03:32,979 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 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 378.56 ms. Allocated memory is still 1.0 GB. Free memory was 950.5 MB in the beginning and 939.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 83.72 ms. Allocated memory is still 1.0 GB. Free memory was 939.8 MB in the beginning and 934.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 902.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 934.4 MB in the beginning and 1.1 GB in the end (delta: -176.7 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 825.69 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: 27.6 MB). Peak memory consumption was 27.6 MB. Max. memory is 11.5 GB. * Witness Printer took 7.43 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: 107]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 90, overapproximation of someBinaryArithmeticDOUBLEoperation at line 50, overapproximation of bitwiseAnd at line 89. Possible FailurePath: [L14] static const double huge_ceil = 1.0e300; VAL [\old(huge_ceil)=10737418245, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L103] double x = 1.0 / 0.0; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L104] CALL, EXPR ceil_double(x) VAL [\old(x)=10737418249, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L17] __int32_t i0, i1, j0; [L18] __uint32_t i, j; VAL [\old(x)=10737418249, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=10737418249] [L20] FCALL ieee_double_shape_type ew_u; VAL [\old(x)=10737418249, ew_u={10737418250:0}, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=10737418249] [L21] FCALL ew_u.value = (x) VAL [\old(x)=10737418249, ew_u={10737418250:0}, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=10737418249] [L22] EXPR, FCALL ew_u.parts.msw VAL [\old(x)=10737418249, ew_u={10737418250:0}, ew_u.parts.msw=6442450943, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=10737418249] [L22] (i0) = ew_u.parts.msw VAL [\old(x)=10737418249, ew_u={10737418250:0}, ew_u.parts.msw=6442450943, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=2147483647, x=10737418249] [L22] FCALL (i0) = ew_u.parts.msw VAL [(i0) = ew_u.parts.msw=10737418247, \old(x)=10737418249, ew_u={10737418250:0}, ew_u.parts.msw=6442450943, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=2147483647, x=10737418249] [L23] EXPR, FCALL ew_u.parts.lsw VAL [\old(x)=10737418249, ew_u={10737418250:0}, ew_u.parts.lsw=10737418240, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=2147483647, x=10737418249] [L23] (i1) = ew_u.parts.lsw VAL [\old(x)=10737418249, ew_u={10737418250:0}, ew_u.parts.lsw=10737418240, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=2147483647, i1=-2147483648, x=10737418249] [L23] FCALL (i1) = ew_u.parts.lsw VAL [(i1) = ew_u.parts.lsw=10737418244, \old(x)=10737418249, ew_u={10737418250:0}, ew_u.parts.lsw=10737418240, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=2147483647, i1=-2147483648, x=10737418249] [L24] COND FALSE !(0) VAL [\old(x)=10737418249, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=2147483647, i1=-2147483648, x=10737418249] [L25] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [\old(x)=10737418249, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=2147483647, i1=-2147483648, x=10737418249] [L26] COND FALSE !(j0 < 20) VAL [\old(x)=10737418249, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=2147483647, i1=-2147483648, j0=1024, x=10737418249] [L48] COND TRUE j0 > 51 VAL [\old(x)=10737418249, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=2147483647, i1=-2147483648, j0=1024, x=10737418249] [L49] COND TRUE j0 == 0x400 [L50] RET return x + x; VAL [\old(x)=10737418249, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=2147483647, i1=-2147483648, j0=1024, x=10737418249] [L104] EXPR ceil_double(x) VAL [ceil_double(x)=10737418248, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=10737418249] [L104] double res = ceil_double(x); [L106] CALL, EXPR isinf_double(res) VAL [\old(x)=10737418248, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L82] __int32_t hx, lx; VAL [\old(x)=10737418248, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=10737418248] [L84] FCALL ieee_double_shape_type ew_u; VAL [\old(x)=10737418248, ew_u={10737418242:0}, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=10737418248] [L85] FCALL ew_u.value = (x) VAL [\old(x)=10737418248, ew_u={10737418242:0}, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=10737418248] [L86] EXPR, FCALL ew_u.parts.msw VAL [\old(x)=10737418248, ew_u={10737418242:0}, ew_u.parts.msw=6442450944, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=10737418248] [L86] (hx) = ew_u.parts.msw VAL [\old(x)=10737418248, ew_u={10737418242:0}, ew_u.parts.msw=6442450944, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=-2147483648, x=10737418248] [L86] FCALL (hx) = ew_u.parts.msw VAL [(hx) = ew_u.parts.msw=10737418246, \old(x)=10737418248, ew_u={10737418242:0}, ew_u.parts.msw=6442450944, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=-2147483648, x=10737418248] [L87] EXPR, FCALL ew_u.parts.lsw VAL [\old(x)=10737418248, ew_u={10737418242:0}, ew_u.parts.lsw=10737418239, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=-2147483648, x=10737418248] [L87] (lx) = ew_u.parts.lsw VAL [\old(x)=10737418248, ew_u={10737418242:0}, ew_u.parts.lsw=10737418239, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=-2147483648, lx=2147483647, x=10737418248] [L87] FCALL (lx) = ew_u.parts.lsw VAL [(lx) = ew_u.parts.lsw=10737418243, \old(x)=10737418248, ew_u={10737418242:0}, ew_u.parts.lsw=10737418239, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=-2147483648, lx=2147483647, x=10737418248] [L88] COND FALSE !(0) VAL [\old(x)=10737418248, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=-2147483648, lx=2147483647, x=10737418248] [L89] hx &= 0x7fffffff [L90] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L91] hx = 0x7ff00000 - hx [L92] RET return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [\old(x)=10737418248, \result=0, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=2146435072, lx=2147483647, x=10737418248] [L106] EXPR isinf_double(res) VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, isinf_double(res)=0, res=10737418248, x=10737418249] [L106] COND TRUE !isinf_double(res) [L107] __VERIFIER_error() VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, res=10737418248, x=10737418249] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 84 locations, 1 error locations. UNSAFE Result, 0.7s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 98 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=84occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 76 NumberOfCodeBlocks, 76 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 576 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 0.1.23-40ef509 [2018-09-20 15:03:35,343 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 15:03:35,345 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 15:03:35,359 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 15:03:35,360 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 15:03:35,361 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 15:03:35,363 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 15:03:35,368 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 15:03:35,370 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 15:03:35,374 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 15:03:35,375 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 15:03:35,375 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 15:03:35,378 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 15:03:35,381 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 15:03:35,388 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 15:03:35,389 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 15:03:35,390 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 15:03:35,392 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 15:03:35,396 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 15:03:35,397 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 15:03:35,398 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 15:03:35,400 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 15:03:35,402 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 15:03:35,402 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 15:03:35,402 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 15:03:35,403 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 15:03:35,404 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 15:03:35,405 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 15:03:35,405 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 15:03:35,406 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 15:03:35,407 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 15:03:35,407 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 15:03:35,408 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 15:03:35,408 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 15:03:35,409 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 15:03:35,410 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 15:03:35,410 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-20 15:03:35,444 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 15:03:35,444 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 15:03:35,445 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 15:03:35,445 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 15:03:35,447 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 15:03:35,448 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 15:03:35,448 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 15:03:35,448 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 15:03:35,449 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 15:03:35,449 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 15:03:35,449 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 15:03:35,449 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 15:03:35,449 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 15:03:35,449 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 15:03:35,450 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-20 15:03:35,450 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-20 15:03:35,450 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 15:03:35,450 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 15:03:35,450 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 15:03:35,453 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 15:03:35,454 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 15:03:35,454 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 15:03:35,454 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 15:03:35,454 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 15:03:35,454 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 15:03:35,454 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 15:03:35,455 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 15:03:35,455 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-20 15:03:35,455 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 15:03:35,455 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-20 15:03:35,455 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-20 15:03:35,458 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 -> 7089bbc1d64fdab3968ddd6407c4dd9659b97437 [2018-09-20 15:03:35,551 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 15:03:35,569 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 15:03:35,574 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 15:03:35,576 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 15:03:35,576 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 15:03:35,577 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1092c_true-unreach-call.c [2018-09-20 15:03:35,930 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc12f2e62/113d878ea7074029ad9c295ce634ebd7/FLAG9b1c37094 [2018-09-20 15:03:36,123 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 15:03:36,125 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1092c_true-unreach-call.c [2018-09-20 15:03:36,136 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc12f2e62/113d878ea7074029ad9c295ce634ebd7/FLAG9b1c37094 [2018-09-20 15:03:36,164 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc12f2e62/113d878ea7074029ad9c295ce634ebd7 [2018-09-20 15:03:36,169 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 15:03:36,175 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 15:03:36,178 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 15:03:36,178 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 15:03:36,186 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 15:03:36,187 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:03:36" (1/1) ... [2018-09-20 15:03:36,191 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e9e930c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:03:36, skipping insertion in model container [2018-09-20 15:03:36,192 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:03:36" (1/1) ... [2018-09-20 15:03:36,204 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 15:03:36,520 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:03:36,543 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 15:03:36,571 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:03:36,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:03:36 WrapperNode [2018-09-20 15:03:36,627 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 15:03:36,628 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 15:03:36,628 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 15:03:36,629 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 15:03:36,646 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:03:36" (1/1) ... [2018-09-20 15:03:36,646 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:03:36" (1/1) ... [2018-09-20 15:03:36,665 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:03:36" (1/1) ... [2018-09-20 15:03:36,665 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:03:36" (1/1) ... [2018-09-20 15:03:36,689 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:03:36" (1/1) ... [2018-09-20 15:03:36,696 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:03:36" (1/1) ... [2018-09-20 15:03:36,705 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:03:36" (1/1) ... [2018-09-20 15:03:36,712 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 15:03:36,713 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 15:03:36,713 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 15:03:36,713 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 15:03:36,717 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:03:36" (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 [2018-09-20 15:03:36,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 15:03:36,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 15:03:36,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ceil_double [2018-09-20 15:03:36,869 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2018-09-20 15:03:36,869 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 15:03:36,869 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 15:03:36,869 INFO L130 BoogieDeclarations]: Found specification of procedure ceil_double [2018-09-20 15:03:36,869 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-20 15:03:36,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-09-20 15:03:36,870 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-20 15:03:36,870 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-20 15:03:36,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-20 15:03:36,870 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-09-20 15:03:36,870 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2018-09-20 15:03:36,870 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 15:03:36,870 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 15:03:36,870 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 15:03:36,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2018-09-20 15:03:36,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-20 15:03:37,181 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:03:37,246 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:03:37,313 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:03:37,844 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:03:37,864 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:03:37,886 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:03:38,996 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 15:03:38,996 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:03:38 BoogieIcfgContainer [2018-09-20 15:03:38,997 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 15:03:38,998 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 15:03:38,999 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 15:03:39,003 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 15:03:39,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 03:03:36" (1/3) ... [2018-09-20 15:03:39,004 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40281331 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:03:39, skipping insertion in model container [2018-09-20 15:03:39,004 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:03:36" (2/3) ... [2018-09-20 15:03:39,005 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40281331 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:03:39, skipping insertion in model container [2018-09-20 15:03:39,006 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:03:38" (3/3) ... [2018-09-20 15:03:39,008 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1092c_true-unreach-call.c [2018-09-20 15:03:39,019 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 15:03:39,029 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 15:03:39,081 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 15:03:39,082 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 15:03:39,082 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 15:03:39,083 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 15:03:39,083 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 15:03:39,083 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 15:03:39,083 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 15:03:39,083 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 15:03:39,084 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 15:03:39,105 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states. [2018-09-20 15:03:39,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-09-20 15:03:39,115 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:03:39,116 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] [2018-09-20 15:03:39,119 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:03:39,125 INFO L82 PathProgramCache]: Analyzing trace with hash -1524052211, now seen corresponding path program 1 times [2018-09-20 15:03:39,131 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:03:39,132 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 [2018-09-20 15:03:39,146 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:03:39,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:03:39,263 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:03:39,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:03:39,287 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:03:39,307 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:03:39,308 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-20 15:03:39,312 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-20 15:03:39,326 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-20 15:03:39,327 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:03:39,329 INFO L87 Difference]: Start difference. First operand 83 states. Second operand 2 states. [2018-09-20 15:03:39,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:03:39,361 INFO L93 Difference]: Finished difference Result 158 states and 201 transitions. [2018-09-20 15:03:39,362 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-20 15:03:39,363 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 24 [2018-09-20 15:03:39,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:03:39,376 INFO L225 Difference]: With dead ends: 158 [2018-09-20 15:03:39,376 INFO L226 Difference]: Without dead ends: 79 [2018-09-20 15:03:39,380 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:03:39,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2018-09-20 15:03:39,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2018-09-20 15:03:39,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2018-09-20 15:03:39,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 93 transitions. [2018-09-20 15:03:39,432 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 93 transitions. Word has length 24 [2018-09-20 15:03:39,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:03:39,433 INFO L480 AbstractCegarLoop]: Abstraction has 79 states and 93 transitions. [2018-09-20 15:03:39,433 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-20 15:03:39,433 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 93 transitions. [2018-09-20 15:03:39,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-09-20 15:03:39,436 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:03:39,436 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] [2018-09-20 15:03:39,436 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:03:39,437 INFO L82 PathProgramCache]: Analyzing trace with hash 1259911131, now seen corresponding path program 1 times [2018-09-20 15:03:39,438 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:03:39,438 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 [2018-09-20 15:03:39,449 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:03:39,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:03:39,667 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:03:40,407 WARN L178 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 5 [2018-09-20 15:03:41,080 INFO L682 Elim1Store]: detected equality via solver [2018-09-20 15:03:41,082 INFO L682 Elim1Store]: detected equality via solver [2018-09-20 15:03:41,088 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 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 27 treesize of output 35 [2018-09-20 15:03:41,113 INFO L700 Elim1Store]: detected not equals via solver [2018-09-20 15:03:41,134 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 25 [2018-09-20 15:03:41,135 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:03:41,213 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:03:41,235 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-20 15:03:41,236 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:36, output treesize:28 [2018-09-20 15:03:42,406 INFO L682 Elim1Store]: detected equality via solver [2018-09-20 15:03:42,407 INFO L682 Elim1Store]: detected equality via solver [2018-09-20 15:03:42,408 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 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 54 treesize of output 56 [2018-09-20 15:03:42,444 INFO L700 Elim1Store]: detected not equals via solver [2018-09-20 15:03:42,496 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 52 [2018-09-20 15:03:42,497 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:03:42,579 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:03:42,651 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-09-20 15:03:42,652 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:63, output treesize:55 [2018-09-20 15:03:42,939 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 35 treesize of output 27 [2018-09-20 15:03:42,976 INFO L700 Elim1Store]: detected not equals via solver [2018-09-20 15:03:42,982 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2018-09-20 15:03:42,983 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:03:42,998 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:03:43,100 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-20 15:03:43,101 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:44, output treesize:18 [2018-09-20 15:03:44,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:03:44,506 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:03:44,522 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:03:44,523 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-09-20 15:03:44,525 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-09-20 15:03:44,525 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-09-20 15:03:44,526 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2018-09-20 15:03:44,528 INFO L87 Difference]: Start difference. First operand 79 states and 93 transitions. Second operand 15 states. [2018-09-20 15:03:46,776 WARN L178 SmtUtils]: Spent 742.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-09-20 15:04:00,127 WARN L178 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2018-09-20 15:04:02,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:04:02,239 INFO L93 Difference]: Finished difference Result 88 states and 102 transitions. [2018-09-20 15:04:02,240 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-20 15:04:02,240 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 50 [2018-09-20 15:04:02,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:04:02,244 INFO L225 Difference]: With dead ends: 88 [2018-09-20 15:04:02,244 INFO L226 Difference]: Without dead ends: 81 [2018-09-20 15:04:02,246 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 35 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 8.3s TimeCoverageRelationStatistics Valid=109, Invalid=647, Unknown=0, NotChecked=0, Total=756 [2018-09-20 15:04:02,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2018-09-20 15:04:02,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 79. [2018-09-20 15:04:02,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2018-09-20 15:04:02,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 92 transitions. [2018-09-20 15:04:02,262 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 92 transitions. Word has length 50 [2018-09-20 15:04:02,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:04:02,262 INFO L480 AbstractCegarLoop]: Abstraction has 79 states and 92 transitions. [2018-09-20 15:04:02,262 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-09-20 15:04:02,262 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 92 transitions. [2018-09-20 15:04:02,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-09-20 15:04:02,264 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:04:02,265 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] [2018-09-20 15:04:02,265 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:04:02,265 INFO L82 PathProgramCache]: Analyzing trace with hash -817298212, now seen corresponding path program 1 times [2018-09-20 15:04:02,266 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:04:02,266 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 [2018-09-20 15:04:02,271 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:04:02,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:04:02,361 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:04:02,407 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 14 treesize of output 11 [2018-09-20 15:04:02,414 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 11 treesize of output 10 [2018-09-20 15:04:02,414 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:04:02,421 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:04:02,439 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-20 15:04:02,440 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-20 15:04:02,504 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 20 treesize of output 16 [2018-09-20 15:04:02,512 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 16 treesize of output 4 [2018-09-20 15:04:02,513 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:04:02,516 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:04:02,527 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-20 15:04:02,528 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-20 15:04:02,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:04:02,772 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:04:02,783 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:04:02,783 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-20 15:04:02,784 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-20 15:04:02,784 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-20 15:04:02,784 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-20 15:04:02,789 INFO L87 Difference]: Start difference. First operand 79 states and 92 transitions. Second operand 9 states. [2018-09-20 15:04:06,695 WARN L178 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2018-09-20 15:04:08,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:04:08,186 INFO L93 Difference]: Finished difference Result 99 states and 112 transitions. [2018-09-20 15:04:08,187 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-20 15:04:08,187 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 50 [2018-09-20 15:04:08,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:04:08,188 INFO L225 Difference]: With dead ends: 99 [2018-09-20 15:04:08,188 INFO L226 Difference]: Without dead ends: 0 [2018-09-20 15:04:08,189 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2018-09-20 15:04:08,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-20 15:04:08,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-20 15:04:08,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-20 15:04:08,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-20 15:04:08,190 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 50 [2018-09-20 15:04:08,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:04:08,190 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-20 15:04:08,190 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-20 15:04:08,191 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-20 15:04:08,191 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-20 15:04:08,195 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-20 15:04:08,360 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-09-20 15:04:08,360 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-09-20 15:04:08,361 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-09-20 15:04:08,361 INFO L426 ceAbstractionStarter]: For program point L87(line 87) no Hoare annotation was computed. [2018-09-20 15:04:08,361 INFO L426 ceAbstractionStarter]: For program point L87-1(line 87) no Hoare annotation was computed. [2018-09-20 15:04:08,361 INFO L426 ceAbstractionStarter]: For program point L85(line 85) no Hoare annotation was computed. [2018-09-20 15:04:08,361 INFO L426 ceAbstractionStarter]: For program point L87-2(line 87) no Hoare annotation was computed. [2018-09-20 15:04:08,361 INFO L426 ceAbstractionStarter]: For program point L87-3(line 87) no Hoare annotation was computed. [2018-09-20 15:04:08,361 INFO L426 ceAbstractionStarter]: For program point L83-1(lines 83 88) no Hoare annotation was computed. [2018-09-20 15:04:08,362 INFO L422 ceAbstractionStarter]: At program point L83-3(lines 83 88) the Hoare annotation is: (= isinf_double_~x |isinf_double_#in~x|) [2018-09-20 15:04:08,362 INFO L426 ceAbstractionStarter]: For program point L83-4(lines 83 88) no Hoare annotation was computed. [2018-09-20 15:04:08,362 INFO L426 ceAbstractionStarter]: For program point L86(line 86) no Hoare annotation was computed. [2018-09-20 15:04:08,362 INFO L426 ceAbstractionStarter]: For program point L86-1(line 86) no Hoare annotation was computed. [2018-09-20 15:04:08,362 INFO L426 ceAbstractionStarter]: For program point L84(line 84) no Hoare annotation was computed. [2018-09-20 15:04:08,365 INFO L426 ceAbstractionStarter]: For program point L86-2(line 86) no Hoare annotation was computed. [2018-09-20 15:04:08,365 INFO L426 ceAbstractionStarter]: For program point L84-1(line 84) no Hoare annotation was computed. [2018-09-20 15:04:08,365 INFO L426 ceAbstractionStarter]: For program point L84-2(line 84) no Hoare annotation was computed. [2018-09-20 15:04:08,365 INFO L426 ceAbstractionStarter]: For program point L84-3(line 84) no Hoare annotation was computed. [2018-09-20 15:04:08,365 INFO L426 ceAbstractionStarter]: For program point isinf_doubleFINAL(lines 81 93) no Hoare annotation was computed. [2018-09-20 15:04:08,366 INFO L426 ceAbstractionStarter]: For program point isinf_doubleEXIT(lines 81 93) no Hoare annotation was computed. [2018-09-20 15:04:08,366 INFO L429 ceAbstractionStarter]: At program point isinf_doubleENTRY(lines 81 93) the Hoare annotation is: true [2018-09-20 15:04:08,367 INFO L426 ceAbstractionStarter]: For program point L27(lines 27 47) no Hoare annotation was computed. [2018-09-20 15:04:08,367 INFO L426 ceAbstractionStarter]: For program point L19-1(lines 19 24) no Hoare annotation was computed. [2018-09-20 15:04:08,367 INFO L422 ceAbstractionStarter]: At program point L19-3(lines 19 24) the Hoare annotation is: (= |ceil_double_#in~x| ceil_double_~x) [2018-09-20 15:04:08,367 INFO L426 ceAbstractionStarter]: For program point L19-4(lines 19 24) no Hoare annotation was computed. [2018-09-20 15:04:08,367 INFO L426 ceAbstractionStarter]: For program point L28(lines 28 36) no Hoare annotation was computed. [2018-09-20 15:04:08,369 INFO L426 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2018-09-20 15:04:08,369 INFO L426 ceAbstractionStarter]: For program point L20-1(line 20) no Hoare annotation was computed. [2018-09-20 15:04:08,369 INFO L426 ceAbstractionStarter]: For program point L20-2(line 20) no Hoare annotation was computed. [2018-09-20 15:04:08,369 INFO L426 ceAbstractionStarter]: For program point L20-3(line 20) no Hoare annotation was computed. [2018-09-20 15:04:08,369 INFO L426 ceAbstractionStarter]: For program point L29(lines 29 35) no Hoare annotation was computed. [2018-09-20 15:04:08,370 INFO L429 ceAbstractionStarter]: At program point ceil_doubleENTRY(lines 16 78) the Hoare annotation is: true [2018-09-20 15:04:08,370 INFO L426 ceAbstractionStarter]: For program point L21(line 21) no Hoare annotation was computed. [2018-09-20 15:04:08,371 INFO L426 ceAbstractionStarter]: For program point L71(lines 71 76) no Hoare annotation was computed. [2018-09-20 15:04:08,371 INFO L426 ceAbstractionStarter]: For program point L71-2(lines 16 78) no Hoare annotation was computed. [2018-09-20 15:04:08,371 INFO L426 ceAbstractionStarter]: For program point ceil_doubleFINAL(lines 16 78) no Hoare annotation was computed. [2018-09-20 15:04:08,371 INFO L426 ceAbstractionStarter]: For program point L71-3(lines 71 76) no Hoare annotation was computed. [2018-09-20 15:04:08,372 INFO L426 ceAbstractionStarter]: For program point ceil_doubleEXIT(lines 16 78) no Hoare annotation was computed. [2018-09-20 15:04:08,372 INFO L426 ceAbstractionStarter]: For program point L63(lines 63 64) no Hoare annotation was computed. [2018-09-20 15:04:08,372 INFO L426 ceAbstractionStarter]: For program point L63-2(lines 63 64) no Hoare annotation was computed. [2018-09-20 15:04:08,373 INFO L426 ceAbstractionStarter]: For program point L55(lines 55 56) no Hoare annotation was computed. [2018-09-20 15:04:08,373 INFO L426 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-09-20 15:04:08,373 INFO L426 ceAbstractionStarter]: For program point L22-1(line 22) no Hoare annotation was computed. [2018-09-20 15:04:08,373 INFO L426 ceAbstractionStarter]: For program point L22-2(line 22) no Hoare annotation was computed. [2018-09-20 15:04:08,373 INFO L426 ceAbstractionStarter]: For program point L72(line 72) no Hoare annotation was computed. [2018-09-20 15:04:08,373 INFO L426 ceAbstractionStarter]: For program point L39(lines 39 40) no Hoare annotation was computed. [2018-09-20 15:04:08,373 INFO L426 ceAbstractionStarter]: For program point L72-1(line 72) no Hoare annotation was computed. [2018-09-20 15:04:08,374 INFO L426 ceAbstractionStarter]: For program point L72-2(line 72) no Hoare annotation was computed. [2018-09-20 15:04:08,374 INFO L426 ceAbstractionStarter]: For program point L72-3(line 72) no Hoare annotation was computed. [2018-09-20 15:04:08,374 INFO L426 ceAbstractionStarter]: For program point L23(line 23) no Hoare annotation was computed. [2018-09-20 15:04:08,374 INFO L426 ceAbstractionStarter]: For program point L23-1(line 23) no Hoare annotation was computed. [2018-09-20 15:04:08,374 INFO L426 ceAbstractionStarter]: For program point L23-2(line 23) no Hoare annotation was computed. [2018-09-20 15:04:08,374 INFO L426 ceAbstractionStarter]: For program point L23-3(line 23) no Hoare annotation was computed. [2018-09-20 15:04:08,374 INFO L426 ceAbstractionStarter]: For program point L48(lines 48 70) no Hoare annotation was computed. [2018-09-20 15:04:08,377 INFO L426 ceAbstractionStarter]: For program point L73(line 73) no Hoare annotation was computed. [2018-09-20 15:04:08,378 INFO L426 ceAbstractionStarter]: For program point L32(lines 32 35) no Hoare annotation was computed. [2018-09-20 15:04:08,378 INFO L426 ceAbstractionStarter]: For program point L57(lines 57 69) no Hoare annotation was computed. [2018-09-20 15:04:08,378 INFO L426 ceAbstractionStarter]: For program point L49(lines 49 52) no Hoare annotation was computed. [2018-09-20 15:04:08,378 INFO L426 ceAbstractionStarter]: For program point L74(line 74) no Hoare annotation was computed. [2018-09-20 15:04:08,378 INFO L426 ceAbstractionStarter]: For program point L41(lines 41 46) no Hoare annotation was computed. [2018-09-20 15:04:08,378 INFO L426 ceAbstractionStarter]: For program point L58(lines 58 67) no Hoare annotation was computed. [2018-09-20 15:04:08,378 INFO L426 ceAbstractionStarter]: For program point L58-1(lines 58 67) no Hoare annotation was computed. [2018-09-20 15:04:08,379 INFO L426 ceAbstractionStarter]: For program point L75(line 75) no Hoare annotation was computed. [2018-09-20 15:04:08,379 INFO L426 ceAbstractionStarter]: For program point L42(lines 42 43) no Hoare annotation was computed. [2018-09-20 15:04:08,379 INFO L426 ceAbstractionStarter]: For program point L75-1(line 75) no Hoare annotation was computed. [2018-09-20 15:04:08,379 INFO L426 ceAbstractionStarter]: For program point L75-2(line 75) no Hoare annotation was computed. [2018-09-20 15:04:08,379 INFO L426 ceAbstractionStarter]: For program point L42-2(lines 42 43) no Hoare annotation was computed. [2018-09-20 15:04:08,379 INFO L426 ceAbstractionStarter]: For program point L75-3(line 75) no Hoare annotation was computed. [2018-09-20 15:04:08,379 INFO L426 ceAbstractionStarter]: For program point L59(lines 59 66) no Hoare annotation was computed. [2018-09-20 15:04:08,379 INFO L426 ceAbstractionStarter]: For program point L26(lines 26 70) no Hoare annotation was computed. [2018-09-20 15:04:08,380 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-09-20 15:04:08,380 INFO L429 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-09-20 15:04:08,380 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-09-20 15:04:08,380 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-09-20 15:04:08,380 INFO L429 ceAbstractionStarter]: At program point mainENTRY(lines 95 111) the Hoare annotation is: true [2018-09-20 15:04:08,384 INFO L426 ceAbstractionStarter]: For program point mainFINAL(lines 95 111) no Hoare annotation was computed. [2018-09-20 15:04:08,384 INFO L426 ceAbstractionStarter]: For program point L107(line 107) no Hoare annotation was computed. [2018-09-20 15:04:08,385 INFO L422 ceAbstractionStarter]: At program point L106(line 106) the Hoare annotation is: (let ((.cse0 (fp.div RNE ((_ to_fp 11 53) RNE 1.0) (_ +zero 11 53)))) (and (= .cse0 main_~x~0) (= (fp.add RNE .cse0 .cse0) main_~res~0))) [2018-09-20 15:04:08,385 INFO L426 ceAbstractionStarter]: For program point L106-1(lines 106 109) no Hoare annotation was computed. [2018-09-20 15:04:08,385 INFO L426 ceAbstractionStarter]: For program point mainEXIT(lines 95 111) no Hoare annotation was computed. [2018-09-20 15:04:08,385 INFO L422 ceAbstractionStarter]: At program point L104(line 104) the Hoare annotation is: (= (fp.div RNE ((_ to_fp 11 53) RNE 1.0) (_ +zero 11 53)) main_~x~0) [2018-09-20 15:04:08,387 INFO L426 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 107) no Hoare annotation was computed. [2018-09-20 15:04:08,387 INFO L426 ceAbstractionStarter]: For program point L104-1(line 104) no Hoare annotation was computed. [2018-09-20 15:04:08,402 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 03:04:08 BoogieIcfgContainer [2018-09-20 15:04:08,402 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 15:04:08,403 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 15:04:08,403 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 15:04:08,403 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 15:04:08,405 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:03:38" (3/4) ... [2018-09-20 15:04:08,410 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-09-20 15:04:08,418 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-09-20 15:04:08,418 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure isinf_double [2018-09-20 15:04:08,419 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ceil_double [2018-09-20 15:04:08,419 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-09-20 15:04:08,427 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2018-09-20 15:04:08,427 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-09-20 15:04:08,428 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-09-20 15:04:08,459 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-09-20 15:04:08,460 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == \old(x) [2018-09-20 15:04:08,524 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-20 15:04:08,524 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 15:04:08,525 INFO L168 Benchmark]: Toolchain (without parser) took 32355.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.6 MB). Free memory was 951.8 MB in the beginning and 797.7 MB in the end (delta: 154.1 MB). Peak memory consumption was 275.8 MB. Max. memory is 11.5 GB. [2018-09-20 15:04:08,527 INFO L168 Benchmark]: CDTParser took 0.15 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. [2018-09-20 15:04:08,527 INFO L168 Benchmark]: CACSL2BoogieTranslator took 450.27 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 935.7 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-09-20 15:04:08,528 INFO L168 Benchmark]: Boogie Preprocessor took 84.11 ms. Allocated memory is still 1.0 GB. Free memory is still 935.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:04:08,528 INFO L168 Benchmark]: RCFGBuilder took 2284.12 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.6 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -146.6 MB). Peak memory consumption was 22.2 MB. Max. memory is 11.5 GB. [2018-09-20 15:04:08,530 INFO L168 Benchmark]: TraceAbstraction took 29403.91 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 804.6 MB in the end (delta: 277.8 MB). Peak memory consumption was 277.8 MB. Max. memory is 11.5 GB. [2018-09-20 15:04:08,530 INFO L168 Benchmark]: Witness Printer took 121.17 ms. Allocated memory is still 1.2 GB. Free memory was 804.6 MB in the beginning and 797.7 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-09-20 15:04:08,539 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 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 450.27 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 935.7 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 84.11 ms. Allocated memory is still 1.0 GB. Free memory is still 935.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 2284.12 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.6 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -146.6 MB). Peak memory consumption was 22.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 29403.91 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 804.6 MB in the end (delta: 277.8 MB). Peak memory consumption was 277.8 MB. Max. memory is 11.5 GB. * Witness Printer took 121.17 ms. Allocated memory is still 1.2 GB. Free memory was 804.6 MB in the beginning and 797.7 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 107]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 83]: Loop Invariant Derived loop invariant: x == \old(x) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 83 locations, 1 error locations. SAFE Result, 29.3s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 23.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 201 SDtfs, 269 SDslu, 832 SDs, 0 SdLazy, 467 SolverSat, 33 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 16.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 144 GetRequests, 100 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 9.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=83occurred 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, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 14 PreInvPairs, 17 NumberOfFragments, 45 HoareAnnotationTreeSize, 14 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 5.3s InterpolantComputationTime, 124 NumberOfCodeBlocks, 124 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 121 ConstructedInterpolants, 32 QuantifiedInterpolants, 46736 SizeOfPredicates, 19 NumberOfNonLiveVariables, 263 ConjunctsInSsa, 31 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...